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1. WO2022001015 - COMPOSITE DIAPHRAGM, PREPARATION METHOD FOR COMPOSITE DIAPHRAGM, AND SOUND PRODUCING DEVICE

Publication Number WO/2022/001015
Publication Date 06.01.2022
International Application No. PCT/CN2020/135759
International Filing Date 11.12.2020
IPC
H04R 7/10 2006.1
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 2006.1
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 2006.1
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 2006.1
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 2006.1
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 2006.1
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
B32B 2307/10
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
2307Properties of the layers or laminate
10having particular acoustical properties
B32B 2307/51
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
2307Properties of the layers or laminate
50having particular mechanical properties
51Elastic
B32B 2307/56
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
2307Properties of the layers or laminate
50having particular mechanical properties
56Damping, energy absorption
B32B 2307/712
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
2307Properties of the layers or laminate
70Other properties
712Weather resistant
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 comprising ; a layer of; natural or synthetic rubber
04comprising rubber as the main or only constituent of a layer, ; which is; next to another layer of ; the same or of; a ; different material
08of synthetic resin
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
  • 歌尔股份有限公司 GOERTEK INC. [CN]/[CN]
Inventors
  • 周厚强 ZHOU, Houqiang
  • 王婷 WANG, Ting
  • 李春 LI, Chun
Priority Data
202010623519.030.06.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) COMPOSITE DIAPHRAGM, PREPARATION METHOD FOR COMPOSITE DIAPHRAGM, AND SOUND PRODUCING DEVICE
(FR) MEMBRANE COMPOSITE, PROCÉDÉ DE PRÉPARATION DE MEMBRANE COMPOSITE, ET DISPOSITIF DE PRODUCTION DE SON
(ZH) 一种复合振膜、复合振膜的制备方法及发声装置
Abstract
(EN) A composite diaphragm (11), a preparation method for the composite diaphragm (11), and a sound producing device. The composite diaphragm (11) comprises an adhesive film layer (12) and a supporting layer (13); the adhesive film layer (12) is prepared from a rubber material and a cross-linking agent by means of 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 (12) has a modulus of 1-20 MPa; and the supporting layer (13) is made of a thermoplastic elastomer. The adhesive film layer (12) has the characteristics of high damping, high resilience, long service life, oil resistance, weather resistance and the like. The adhesive film layer (12) is firmly bonded with the supporting layer (13), and the modulus of the adhesive film layer (12) is higher than that of a conventional acrylic acid adhesive film/silica gel adhesive film layer. In the forming process of the diaphragm (11), the adhesive film layer (12) is extruded to deform uniformly, the thickness of each part of the diaphragm (11) is uniform, and the reliability is excellent.
(FR) Membrane composite (11), procédé de préparation de la membrane composite (11), et dispositif de production de son. La membrane composite (11) comprend une couche de film adhésif (12) et une couche de support (13) ; la couche de film adhésif (12) est préparée à partir d'un matériau de caoutchouc et d'un agent de réticulation au moyen d'une réaction de réticulation ; le matériau de caoutchouc comprend au moins l'un d'un bipolymère éthylène-acrylate et d'un terpolymère d'acide carboxylique organique insaturé éthylène-acrylate ; en parties en masse, 100 parties du matériau de caoutchouc existent tandis que 0,5 à 10 parties de l'agent de réticulation existent ; la couche de film adhésif (12) comprend un module de 1 à 20 MPa ; et la couche de support (13) est constituée d'un élastomère thermoplastique. La couche de film adhésif (12) présente les caractéristiques d'amortissement élevé, d'élasticité élevée, de longue durée de vie, de résistance à l'huile, de résistance aux intempéries et analogues. La couche de film adhésif (12) est fermement liée à la couche de support (13), et le module de la couche de film adhésif (12) est supérieur à celui d'une couche de film adhésif à base d'acide acrylique/film adhésif à base de gel de silice classique. Dans le processus de formation de la membrane (11), la couche de film adhésif (12) est extrudée pour se déformer uniformément, l'épaisseur de chaque partie de la membrane (11) est uniforme, et la fiabilité est excellente.
(ZH) 一种复合振膜(11)、复合振膜(11)的制备方法及发声装置。复合振膜(11)包括胶膜层(12)和支撑层(13),胶膜层(12)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(12)的模量为1MPa~20MPa;支撑层(13)采用热塑性弹性体制成。胶膜层(12)具有高阻尼、高回弹,寿命长、耐油、耐候性等特点,胶膜层(12)同支撑层(13)粘结牢靠,胶膜层(12)模量比常规丙烯酸胶膜/硅胶胶膜层高。在振膜(11)成型过程中,胶膜层(12)受挤压均匀变形,振膜(11)各部位厚度均一,可靠性优。
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