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1. CN111836174 - Composite vibrating diaphragm, preparation method of composite vibrating diaphragm and sound production device

Office
China
Application Number 202010623519.0
Application Date 30.06.2020
Publication Number 111836174
Publication Date 27.10.2020
Publication Kind A
IPC
H04R 7/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
7Diaphragms for electromechanical transducers; Cones
02characterised by the construction
04Plane diaphragms
06comprising a plurality of sections or layers
10comprising superposed layers in contact
H04R 9/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
02Details
H04R 9/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
06Loudspeakers
H04R 31/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
31Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
B32B 25/14
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25Layered products essentially comprising natural or synthetic rubber
14comprising copolymers in which synthetic rubber constituents predominate
B32B 25/08
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25Layered products essentially comprising natural or synthetic rubber
04comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance
08of synthetic resin
CPC
H04R 7/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
7Diaphragms for electromechanical transducers
02characterised by the construction
04Plane diaphragms
06comprising a plurality of sections or layers
10comprising superposed layers in contact
H04R 9/025
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
02Details
025Magnetic circuit
H04R 9/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
06Loudspeakers
H04R 31/003
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
31Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
003for diaphragms or their outer suspension
H04R 31/006
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
31Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
006Interconnection of transducer parts
B32B 25/14
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25Layered products comprising ; a layer of; natural or synthetic rubber
14comprising ; synthetic rubber copolymers
Applicants GOERTEK INC.
歌尔股份有限公司
Inventors ZHOU HOUQIANG
周厚强
WANG TING
王婷
LI CHUN
李春
Agents 北京博雅睿泉专利代理事务所(特殊普通合伙) 11442
Title
(EN) Composite vibrating diaphragm, preparation method of composite vibrating diaphragm and sound production device
(ZH) 一种复合振膜、复合振膜的制备方法及发声装置
Abstract
(EN) The invention discloses a composite vibrating diaphragm, a preparation method of the composite vibrating diaphragm and a sound production device. The composite vibrating diaphragm comprises an adhesive film layer and a supporting layer, wherein the adhesive film layer is prepared from a rubber material and a cross-linking agent through a cross-linking reaction; the rubber material comprises at least one of an ethylene-acrylate bipolymer and an ethylene-acrylate-unsaturated organic carboxylic acid terpolymer; in parts by mass, 100 parts of the rubber material exist while 0.5-10 parts of the cross-linking agent exist; the adhesive film layer has a modulus of 1-20 MPa; and the supporting layer is made of thermoplastic elastomer. The adhesive film layer has the characteristics of high damping,high resilience, long service life, oil resistance, weather resistance and the like, the adhesive film layer is firmly bonded with the supporting layer, and the modulus of the adhesive film layer ishigher than that of a conventional acrylic acid adhesive film/silica gel adhesive film layer. In the vibrating diaphragm forming process, the adhesive film layer is extruded to deform uniformly, the thickness of each part of the vibrating diaphragm is uniform, and the reliability is excellent.
(ZH) 本申请公开了一种复合振膜、复合振膜的制备方法及发声装置。复合振膜包括胶膜层和支撑层,胶膜层采用橡胶材料与交联剂经交联反应制成,橡胶材料包括乙烯‑丙烯酸酯二元共聚物和乙烯‑丙烯酸酯‑不饱和有机羧酸三元共聚物中的至少一种,按照质量份数计,橡胶材料的质量份数为100份,交联剂的质量份数为0.5份~10份,胶膜层的模量为1MPa~20MPa;支撑层采用热塑性弹性体制成。本申请的胶膜层具有高阻尼、高回弹,寿命长、耐油、耐候性等特点,胶膜层同支撑层粘结牢靠,胶膜层模量比常规丙烯酸胶膜/硅胶胶膜层高。在振膜成型过程中,胶膜层受挤压均匀变形,振膜各部位厚度均一,可靠性优。
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