Method for manufacturing compound diaphragm

Patent metadata

Field	Value
Publication number	US-9424829-B2
Application number	US-201414522688-A
Country	US
Kind code	B2
Filing date	Oct 24, 2014
Priority date	Apr 25, 2014
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

The present disclosure provides diaphragm and a method for manufacturing the same. The diaphragm includes a first macromolecular material layer, a graphene layer, a glue layer and a second macromolecular material layer in sequence. The first macromolecular material layer is directly attached to the graphene layer, and the second macromolecular material layer is attached to the graphene layer via the glue layer. The strength and the stiffness of the diaphragm is enhanced to improve the acoustic performances of the diaphragm.

First claim

What is claimed is:

1. A diaphragm, comprising:
a first macromolecular material layer;
a graphene layer;
a glue layer;
a second macromolecular material layer; wherein the first macromolecular material layer is closely directly attached to the graphene layer though one of evaporation process, physical vapor deposition (PVD) process, chemical vapor deposition (CVD) process, sputtering process, spray coating process, and printing process, and the second macromolecular material layer is attached to the graphene layer via the glue layer.

2. The diaphragm of claim 1 , wherein the first macromolecular material layer and the second macromolecular material layer are formed of any one or two of polyetheretherketone (PEEK), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS) and polyarylate (PAR) respectively.

3. A method for manufacturing a diaphragm in one of claims 1 - 2 , comprising the following steps:
Step 1: providing a first macromolecular material layer;
Step 2: providing a graphene layer;
Step 3: attaching the first macromolecular material layer to one surface of the graphene layer though one of evaporation process, physical vapor deposition (PVD) process, chemical vapor deposition (CVD) process, sputtering process, spray coating process, and printing process;
Step 4: providing a second macromolecular material layer and coating glue on a surface thereof for forming a second macromolecular material layer having a glue layer thereon; and
Step 5: attaching the second macromolecular material layer to the other surface of the graphene layer for forming diaphragm.

4. The method for manufacturing a diaphragm of claim 3 , wherein the first macromolecular material layer and the second macromolecular material layer are formed of any one of polyetheretherketone (PEEK), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS) and polyarylate (PAR) respectively.

Assignees

• Zhu Bingke
• Aac Technologies Pte Ltd

Inventors

• Zhu Bingke

Classifications

• H04R2307/023

  Diaphragms comprising ceramic-like materials, e.g. pure ceramic, glass, boride, nitride, carbide, mica and carbon materials · CPC title

• H04R7/10

  comprising superposed layers in contact · CPC title

• B32B2255/10

  on synthetic resin layer or on natural or synthetic rubber layer · CPC title

• B32B2307/10

  having particular acoustical properties · CPC title

• B32B27/36

  comprising polyesters · CPC title