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公开(公告)号：US20200351592A1
公开(公告)日：2020-11-05
申请号：US16961357
申请日：2018-12-24
Applicant: Goertek Inc.
Inventor： Guodong Zhao , Zedong Zheng , Peijun Li , Yaqian Ji
Abstract: An embodiment of the present invention provides a sound generating device which comprises a housing, wherein a sound generating unit is mounted in the housing, a closed rear cavity is formed between the sound generating unit and the housing, and the sound generating unit is provided with a rear sound hole in communication with the rear cavity, wherein the sound generating unit comprises a magnetic circuit system, an expandable-capacity cavity being provided on the magnetic circuit system, and the expandable-capacity cavity acting as part of the rear cavity to increase a volume of the rear cavity.
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公开(公告)号：US12212920B2
公开(公告)日：2025-01-28
申请号：US17778466
申请日：2020-11-16
Applicant: GOERTEK INC.
Inventor： Zedong Zheng , Guodong Zhao , Feng Zhang , Peng Zhang
Abstract: A loudspeaker module and an electronic apparatus are disclosed, the loudspeaker module comprises a housing, a loudspeaker unit and a barrier rib body; the loudspeaker unit is provided in an inner cavity of the housing and divides the inner cavity of the housing into a front acoustic cavity and a rear acoustic cavity, the rear acoustic cavity is filled with sound-absorbing particles, and a cavity wall of the rear acoustic cavity is provided with a leakage hole. The barrier rib body is provided in the rear acoustic cavity, at least a part of the barrier rib body faces the leakage hole, and the distance between the leakage hole and the part of the barrier rib body facing the leakage hole is less than the size of the sound-absorbing particles. The technical solution can reduce the occurrence of the situation where the sound-absorbing particles block the leakage hole.
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公开(公告)号：US11818559B2
公开(公告)日：2023-11-14
申请号：US17252471
申请日：2018-10-13
Applicant: GOERTEK INC.
Inventor： Ting Wang , Guodong Zhao , Jie Zhu , Chun Li , Chunfa Liu
IPC: H04R31/00 , H04R7/10 , B32B7/12 , B32B27/08 , B32B27/36 , C09J133/08 , C09J175/04 , C09J183/04
CPC classification number: H04R31/003 , B32B7/12 , B32B27/08 , B32B27/36 , C09J133/08 , C09J175/04 , C09J183/04 , H04R7/10 , B32B2274/00 , B32B2457/00 , H04R2307/025
Abstract: 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 F0 of the speaker lower. Further, elastic area of the speaker diaphragm is wider and the resilience performance is excellent.
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公开(公告)号：US20210274286A1
公开(公告)日：2021-09-02
申请号：US17252606
申请日：2018-10-13
Applicant: GOERTEK INC.
Inventor： Ting Wang , Guodong Zhao , Jie Zhu , Chun Li , Chunfa Liu
Abstract: The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes a thermoplastic polyester elastomer film layer, 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 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.
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公开(公告)号：US20210274285A1
公开(公告)日：2021-09-02
申请号：US17252493
申请日：2018-10-13
Applicant: GOERTEK INC.
Inventor： Ting Wang , Guodong Zhao , Jie Zhu , Chun Li , Chunfa Liu
Abstract: The present disclosure provides a speaker diaphragm and a speaker. The speaker diaphragm comprises a thermoplastic polyester elastomer film layer (11), wherein a thermoplastic polyester elastomer is a copolymer composed of a polyester hard segment A and a polyether or aliphatic polyester soft segment B, and the thermoplastic polyester elastomer film layer has a glass transition temperature being less than or equal to 20° C., and a thermoplastic temperature being 50° C.-200° C. The use of the thermoplastic polyester elastomer film layer enables the speaker diaphragm to have a good flexibility, a high reliability, and a good durability, and improves the anti-destructive ability of the speaker.
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Patent Agency Ranking
公开(公告)号：US20210266673A1
公开(公告)日：2021-08-26
申请号：US17256343
申请日：2018-12-29
Applicant: GOERTEK INC.
Inventor： Xinglong Wang , Guodong Zhao , Lianshan Ge , Chunfa Liu
Abstract: The present invention discloses a sound production apparatus, comprising a first vibration system, a second vibration system and a magnetic circuit system, wherein the first vibration system comprises a first diaphragm and a voice coil arranged on a side, facing the magnetic circuit system, of the first diaphragm; the second vibration system comprises a second diaphragm arranged opposite to the first diaphragm, and a middle position of the second diaphragm is combined with a reinforcement portion; the reinforcement portion is provided with an extension portion extending along a direction close to the first diaphragm, and a position, corresponding to the extension portion, in the magnetic circuit system is provided with an avoidance portion; and the extension portion is capable of passing through the avoidance portion, and is fixed to the first diaphragm. The sound production apparatus of the present invention is configured with two sets of vibration systems but only adopts one set of a voice coil and magnetic circuit system, so as to realize a structure for synchronized bidirectional sound production, occupying a small volume, facilitating its wide application to portable terminals.
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公开(公告)号：US20210266672A1
公开(公告)日：2021-08-26
申请号：US17252367
申请日：2018-10-13
Applicant: GOERTEK INC.
Inventor： Ting Wang , Guodong Zhao , Jie Zhu , Chun Li , Chunfa Liu
Abstract: 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.
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公开(公告)号：US20210258707A1
公开(公告)日：2021-08-19
申请号：US17252471
申请日：2018-10-13
Applicant: GOERTEK INC.
Inventor： Ting Wang , Guodong Zhao , Jie Zhu , Chun Li , Chunfa Liu
IPC: H04R31/00 , H04R7/10 , B32B7/12 , B32B27/36 , B32B27/08 , C09J183/04 , C09J175/04 , C09J133/08
Abstract: 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 au 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 F0 of the speaker lower. Further elastic area of the speaker diaphragm is wider and the resilience performance is excellent.
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公开(公告)号：US20210258692A1
公开(公告)日：2021-08-19
申请号：US17252580
申请日：2018-10-13
Applicant: GOERTEK INC.
Inventor： Ting Wang , Guodong Zhao , Jie Zhu , Chun Li , Chunfa Liu
Abstract: 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, wherein at least one of the surface layers is a thermoplastic polyester elastomer film layer, at least one of the intermediate layers is an adhesive layer, a thermoplastic polyester elastomer is a copolymer composed of a polyester hard segment A and a polyether or aliphatic polyester soft segment B, a thickness of the thermoplastic polyester elastomer film layer is 5-70 μm, and a thickness of the adhesive layer is 1-40 μm.
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公开(公告)号：US20210120340A1
公开(公告)日：2021-04-22
申请号：US17252537
申请日：2018-10-13
Applicant: GOERTEK INC.
Inventor： Ting Wang , Guodong Zhao , Jie Zhu , Chun Li , Chunfa Liu
Abstract: 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 being a thermoplastic polyester elastomer film layer (11), at least one intermediate layers being an adhesive layer (12), wherein the plastic polyester elastomer is a copolymer composed of a hard segment A of polyester and a soft segment B of polyether or aliphatic polyester, and the hard segment A of polyester has a mass percentage of 10-95%. The speaker diaphragm accommodates an excellent rigidity, a good damping performance and resilience and so on.
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