CN110958542A

CN110958542A - Vibrating diaphragm

Info

Publication number: CN110958542A
Application number: CN201911285410.4A
Authority: CN
Inventors: 朱军良
Original assignee: Shimen Dayun Electronics Co ltd
Current assignee: Shimen Dayun Electronics Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-04-03

Abstract

The invention provides a vibrating diaphragm which comprises a central part, a folding ring arranged around the central part and a dome attached to the central part, wherein the central part comprises a carbon fiber plate layer, a PVC (polyvinyl chloride) film layer and a PEET (polyethylene terephthalate) film layer, and the dome is made of silicon nitride ceramic materials. Compared with the prior art, the vibrating diaphragm provided by the invention has the following advantages: the carbon fiber plate layer is wrapped with the PVC film layer, and then the PEET film layer is wrapped outside the PVC film layer, so that when the vibrating diaphragm works, only the PVC film layer is in direct contact with the PEET film layer, and the PVC film layer and the PEET film layer are both made of flexible materials, so that the PEET film layer is not easy to cut; the PVC film layer and the PEET film layer are bonded by polyurethane glue, so that the bonding is firm, and the PVC film layer and the PEET film layer are not easy to fall off; the carbon fiber plate layer is arranged in the central part, so that the mechanical strength is high and the weight is light.

Description

Vibrating diaphragm

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of electroacoustic conversion, in particular to a vibrating diaphragm.

[ background of the invention ]

With the increasing market demand, electronic devices such as mobile phones are gradually thinned, and the sound quality of the electronic devices is required to be better, so that the acoustic devices in the mobile phones are required to be miniaturized, thinned and have high sound quality. The diaphragm is a core component of an acoustic device such as a loudspeaker, and the requirement for the acoustic performance of the diaphragm is increased accordingly.

But current vibrating diaphragm, in order to improve the rigidity of intermediate part, often can set up the rigid material layer in inside, and the rigid material layer outside only wraps up the flexible material layer of one deck, and the vibrating diaphragm during operation, reciprocal folding causes the rigid material layer easily to cut through the flexible material layer, leads to the vibrating diaphragm performance to change obviously, and then rigid tone quality.

[ summary of the invention ]

It is an object of the present invention to provide a diaphragm which solves the technical problems mentioned in the background.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a vibrating diaphragm, its characterized in that includes central part, encircles the book ring that central part set up and laminate in ball top in the central part, the central part include the carbon fiber sheet layer, wrap up in the PVC thin layer of carbon fiber sheet layer outside and wrap up in the PEET thin layer of PVC thin layer outside, the ball top is made by silicon nitride ceramic material.

Preferably, the PVC film layer is bonded with the PEET film layer through polyurethane glue.

Preferably, the edge is made of a PEET material.

Preferably, the edge rings are integrally formed with the PEET film layer.

Compared with the prior art, the vibrating diaphragm provided by the invention has the following advantages: the carbon fiber plate layer is wrapped with the PVC film layer, and then the PEET film layer is wrapped outside the PVC film layer, so that when the vibrating diaphragm works, only the PVC film layer is in direct contact with the PEET film layer, and the PVC film layer and the PEET film layer are both made of flexible materials, so that the PEET film layer is not easy to cut; the PVC film layer and the PEET film layer are bonded by polyurethane glue, so that the bonding is firm, and the PVC film layer and the PEET film layer are not easy to fall off; the carbon fiber plate layer is arranged in the central part, so that the mechanical strength is high and the weight is light.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural diagram of a diaphragm according to the present invention;

FIG. 2 is a schematic view of the center portion of the present invention.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides a diaphragm 100, including a central portion 1, a folded ring 2 surrounding the central portion 1, and a dome 3 attached to the central portion 1, where the central portion 1 includes a carbon fiber plate layer 11, a PVC film layer 12 wrapping the carbon fiber plate layer 11, and a PEET film layer 13 wrapping the PVC film layer 12, so that when the diaphragm works, only the PVC film layer 12 directly contacts the PEET film layer 13, and both are made of flexible materials, which does not easily cause the PEET film layer 13 to be cut, and improves the service life of the diaphragm 100.

Further, the carbon fiber sheet layer 11 is provided in the center portion 1, and therefore, the mechanical strength is high and the weight is light.

The dome 3 is made of a silicon nitride ceramic material, ensuring that the dome 3 has sufficient mechanical strength.

The PVC film layer 12 and the PEET film layer 13 are bonded through polyurethane glue, the bonding is firm, and the PVC film layer 12 and the PEET film layer 13 are not easy to fall off.

The hinge 2 is made of a PEET material and, preferably, the hinge 2 is integrally provided with the PEET film layer 13.

While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the specification and the embodiments, which are fully applicable to various fields of endeavor for which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. The utility model provides a vibrating diaphragm, its characterized in that includes central part, encircles the book ring that central part set up and laminate in ball top in the central part, the central part include the carbon fiber sheet layer, wrap up in the PVC thin layer of carbon fiber sheet layer outside and wrap up in the PEET thin layer of PVC thin layer outside, the ball top is made by silicon nitride ceramic material.

2. The diaphragm of claim 1, wherein the PVC film layer and the PEET film layer are bonded together by polyurethane glue.

3. The diaphragm of claim 1 wherein the edge is made of a PEET material.

4. The diaphragm of claim 3 wherein the edge is integral with the PEET film layer.