公开(公告)号：EP3809721A1

公开(公告)日：2021-04-21

申请号：EP18922538.6

申请日：2018-10-13

申请人： Goertek Inc

发明人： WANG, Ting ,  ZHAO, Guodong ,  ZHU, Jie ,  LI, Chun ,  LIU, Chunfa

IPC分类号： H04R9/06 ,  H04R9/02

摘要： The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes a thermoplastic polyester elastomer film layer (11), a thermoplastic polyester elastomer being a copolymer composed of a hard segment A of polyester and a soft segment B of polyether or aliphatic polyester, wherein the thermoplastic polyester elastomer film layer (11) has Young's modulus of 1-1000 MPa, with an elastic recovery rate after 10% strain being greater than or equal to 80%. The speaker diaphragm has a good stiffness, a good damping performance and a good resilience.

公开(公告)号：EP4221260A1

公开(公告)日：2023-08-02

申请号：EP21871189.3

申请日：2021-08-25

申请人： Goertek Inc

发明人： WANG, Cuicui ,  HUI, Bing ,  LING, Fengguang ,  LI, Chun

IPC分类号： H04R31/00 ,  H04R7/02 ,  H04R9/06 ,  H04R9/02 ,  C08L53/00

摘要： A diaphragm and a sound generating apparatus. The diaphragm comprises at least one elastomer layer, and the elastomer layer is made of a rubber compound. The rubber compound comprises nitrile rubber and hydrogenated nitrile rubber. Both the nitrile rubber and the hydrogenated nitrile rubber contain acrylonitrile blocks. In terms of mass percentage, the range of the content of acrylonitrile blocks is 20% to 80%. The described diaphragm has excellent mechanical strength, cold resistance, and resilience, and has high damping performance.

公开(公告)号：EP3962106A1

公开(公告)日：2022-03-02

申请号：EP20796460.2

申请日：2020-04-21

申请人： Goertek Inc

发明人： HUI, Bing ,  WANG, Shuqiang ,  LING, Fengguang ,  LI, Chun ,  LIU, Chunfa

IPC分类号： H04R7/04 ,  H04R7/10 ,  B32B25/04 ,  C08L33/08 ,  C08L33/10 ,  C08K3/36 ,  C08K3/26 ,  C08K3/24

摘要： Disclosed are diaphragm for a miniature sound-generating device, and the miniature sound-generating device. The diaphragm for a miniature sound-generating device is made of a polyacrylate copolymer, the polyacrylate copolymer is made by crosslinking polymerization of alkyl acrylate serving as a main polymerization monomer and a crosslinking monomer, the polyacrylate copolymer is mixed with a reinforcing agent, the polyacrylate copolymer itself is 100 parts by mass, the reinforcing agent itself is 1-90 parts by mass, and the diaphragm has a loss factor greater than 0.06 and a shore hardness in a range of 15-90 A. The diaphragm possesses excellent sound performance.

公开(公告)号：EP3809722A1

公开(公告)日：2021-04-21

申请号：EP18922954.5

申请日：2018-10-13

申请人： Goertek Inc.

发明人： WANG, Ting ,  ZHAO, Guodong ,  ZHU, Jie ,  LI, Chun ,  LIU, Chunfa

IPC分类号： H04R9/06 ,  H04R7/02

摘要： The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes a thermoplastic polyester elastomer film layer (11), a thermoplastic polyester elastomer being a copolymer composed of a polyester hard segment A and a polyether or aliphatic polyester soft segment B, wherein a mass percentage of the polyester hard segment A is 10-95%. The speaker diaphragm features high structural strength, is not easy to be damaged, and has good toughness and resilience and a good sound generation effect.

公开(公告)号：EP3809718A1

公开(公告)日：2021-04-21

申请号：EP18922828.1

申请日：2018-10-13

申请人： Goertek Inc.

发明人： WANG, Ting ,  ZHAO, Guodong ,  ZHU, Jie ,  LI, Chun ,  LIU, Chunfa

IPC分类号： H04R7/10 ,  H04R9/02 ,  H04R9/06 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36

摘要： A speaker is disclosed, which comprises a vibration system and a magnetic circuit system cooperating with the vibration system. The vibration system includes a speaker diaphragm, the speaker diaphragm comprises two surface layers compounded together and at least one intermediate layer positioned between the two surface layers, at least one of the surface layers is a thermoplastic polyester elastomer film layer (11), the at least one intermediate layer is an adhesive layer (12), the speaker diaphragm has Young's modulus of 5-700 MPa and an amplitude of 0.25 mm-1 mm, and the speaker has Fo of 150-1500 Hz. The speaker has a good sounding effect. ( FIG. 2 )

公开(公告)号：EP3985996A1

公开(公告)日：2022-04-20

申请号：EP20823630.7

申请日：2020-04-21

申请人： Goertek Inc

发明人： HUI, Bing ,  WANG, Shuqiang ,  LING, Fengguang ,  LI, Chun ,  LIU, Chunfa

IPC分类号： H04R7/14

摘要： Disclosed are a diaphragm for a sound generating device and a sound generating device. The vibration diaphragm comprises at least one elastomer layer, wherein the elastomer layer is made of a hydrogenated nitrile butadiene rubber polymer; and the hydrogenated nitrile butadiene rubber polymer comprises acrylonitrile blocks, content of the acrylonitrile blocks in the hydrogenated nitrile butadiene rubber polymer ranging from 10wt% to 70 wt%, a vulcanizing agent is added into the hydrogenated nitrile butadiene rubber polymer, and content of the vulcanizing agent is 1% to 15% of total content of the hydrogenated nitrile butadiene rubber polymer. The diaphragm of the present disclosure has excellent resilience, maintains high elasticity in a low-temperature environment and is capable of long-time working in a high-temperature environment, therefore enabling the sound generating device to be applied in an extremely severe environment while keeping its acoustic performance in an excellent state. ( Fig.6 )

公开(公告)号：EP3985067A1

公开(公告)日：2022-04-20

申请号：EP20822007.9

申请日：2020-04-21

申请人： Goertek Inc

发明人： WANG, Shuqiang ,  HUI, Bing ,  LING, Fengguang ,  LI, Chun ,  LIU, Chunfa

IPC分类号： C08L23/16 ,  H04R7/12 ,  B32B25/04

摘要： Disclosed are a diaphragm for a sound generating device and a sound generating device. The diaphragm comprising at least one elastomer layer, wherein the elastomer layer is made of an ethylene propylene diene monomer; and the ethylene propylene diene monomer is formed by polymerizing three monomers, the three monomers being an ethylene monomer, a propylene monomer and a non-conjugated diene monomer respectively, a mass ratio of the ethylene monomer to the propylene monomer ranging from 0.25 to 4, and content of the non-conjugated diene monomer being 1%-15% of total content of the ethylene monomer and the propylene monomer. The ethylene propylene diene monomer has excellent high-temperature resistance and thermo-oxidative aging resistance; and after the rubber is made into the diaphragm, the diaphragm is capable of working in a high-temperature environment for a long time, maintaining not only excellent elasticity but also excellent anti-fatigue characteristic, thereby possessing excellent reliability.

公开(公告)号：EP3809717A1

公开(公告)日：2021-04-21

申请号：EP18922626.9

申请日：2018-10-13

申请人： Goertek Inc.

发明人： WANG, Ting ,  ZHAO, Guodong ,  ZHU, Jie ,  LI, Chun ,  LIU, Chunfa

IPC分类号： H04R7/10 ,  H04R9/06 ,  H04R9/02 ,  B32B7/12 ,  B32B27/08

摘要： The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes two surface layers compounded together and at least one intermediate layer located between the two surface layers, at least one of the surface layers is a thermoplastic polyester elastomer film layer, and at least one of the intermediate layers is an adhesive layer, wherein the thermoplastic polyester elastomer film layer has a Young's module of 1-1000 MPa, a loss factor being greater than or equal to 0.015, and an elastic recovery rate after 10% strain being greater than or equal to 80%. The speaker diaphragm may be made very thin, thus reducing the weight of the speaker diaphragm, improving the space allowance for vibration, improving the sensitivity, and making the F 0 of the speaker lower. Further, elastic area of the speaker diaphragm is wider and the resilience performance is excellent.

公开(公告)号：EP3962110A1

公开(公告)日：2022-03-02

申请号：EP20795437.1

申请日：2020-04-20

申请人： Goertek Inc

发明人： HUI, Bing ,  WANG, Shuqiang ,  LING, Fengguang ,  LI, Chun ,  LIU, Chunfa

IPC分类号： H04R7/12

摘要： Disclosed are a diaphragm for a miniature sound-generating device, wherein the diaphragm is made of a polyacrylate copolymer, a reinforcing agent is mixed in the polyacrylate copolymer, the polyacrylate copolymer is 100 parts by mass, and the reinforcing agent comprises at least one of carbon black, silicon dioxide, calcium carbonate and barium sulphate, and is 1-90 parts by mass. The diaphragm provided in the disclosure possesses excellent sound performance.

公开(公告)号：EP3962105A1

公开(公告)日：2022-03-02

申请号：EP20795996.6

申请日：2020-04-20

申请人： Goertek Inc

发明人： HUI, Bing ,  LING, Fengguang ,  WANG, Ting ,  LI, Chun ,  LIU, Chunfa

IPC分类号： H04R7/04 ,  H04R31/00 ,  C08F210/02 ,  C08L23/02 ,  C08L23/08

摘要： Disclosed are a diaphragm for a miniature sound-generating device, and a miniature sound-generating device. The diaphragm is made of a polyacrylate copolymer, the polyacrylate copolymer comprises an "ethylene-acrylate copolymer", a mass ratio of a polyethylene block to a polyacrylate block in the polyacrylate copolymer is 0.05-10, a cross-linking agent is mixed in the polyacrylate copolymer, and the cross-linking agent comprises a peroxide cross-linking agent and an assistant cross-linking agent. The diaphragm provided in the disclosure possesses excellent sound performance. ( Fig. 8 )