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公开(公告)号：US20220386034A1
公开(公告)日：2022-12-01
申请号：US17773441
申请日：2020-11-05
Applicant: GOERTEK INC.
Inventor： Jianbin Yang , Shousong Qiang , Chunfa Liu
Abstract: Disclosed is a sound-producing device, including: a voice coil configured to be able to be input an electrical signal; and a damper including a first connecting part, a planar elastic part and a second connecting part. The first connecting part is configured to be connected to the voice coil; the second connecting part is configured to be fixed to the sound-producing device; the planar elastic part is formed by the first connecting part being bent and extending toward the second connecting part; the damper has a mechanical stiffness Kms of 0.2 N/mm to 2 N/mm; the sound-producing device has a resonance frequency F0 of 50 Hz to 300 Hz; the sound-producing device has a total harmonic distortion THD of less than 10% in a frequency range of 100 Hz to 300 Hz.
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公开(公告)号：US20220386030A1
公开(公告)日：2022-12-01
申请号：US17767365
申请日：2019-12-25
Applicant: Goertek Inc.
Inventor： Shuqiang Wang , Fengguang Ling , Chun Li , Chunfa Liu
Abstract: The present disclosure provides a vibrating diaphragm of a sound-producing apparatus and the sound-producing apparatus. The vibrating diaphragm includes a fluorosilicone rubber film layer, and the fluorosilicone rubber includes a linear polymer composed of a silica main chain and a side chain radical; a molecular structure of the polymer including a unit with the side chain radical with vinyl is a methyl vinyl siloxane unit, and a unit with the side chain radical with R1 is a fluorine-containing siloxane unit; and wherein n and m are natural numbers, and R1 comprises at least one of fluoroalkyl and fluoroaryl.
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公开(公告)号：US11470425B2
公开(公告)日：2022-10-11
申请号：US17251886
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, comprising a vibration system including a speaker diaphragm and a magnetic circuit system cooperating with the vibration system. The speaker diaphragm comprises a thermoplastic polyester elastomer membrane and has a vibration amplitude of 0.25-1 mm, and the speaker has F0 of 150-1500 Hz. The speaker has the characteristic of good listening effect.
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公开(公告)号：US20220251253A1
公开(公告)日：2022-08-11
申请号：US17614205
申请日：2020-04-20
Applicant: Goertek Inc.
Inventor： Bing Hui , Shuqiang Wang , Fengguang Ling , Chun Li , Chunfa Liu
Abstract: A diaphragm for a miniature sound generating device, wherein the diaphragm is made of a polyacrylate copolymer, a plasticizer is mixed in the polyacrylate copolymer, the polyacrylate copolymer is 100 parts by mass, and the plasticizer comprises at least one of aliphatic dibasic acid esters, phthalic acid esters, benzene polyacid esters, benzoic ethers, polyol esters, chlorinated hydrocarbons, epoxides, citrate esters and polyesters. The diaphragm possesses excellent sound performance.
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公开(公告)号：US11317217B2
公开(公告)日：2022-04-26
申请号：US17256611
申请日：2018-12-17
Applicant: GOERTEK INC.
Inventor： Xinglong Wang , Jianjian Wang , Tongyan Xu , Chunfa Liu
Abstract: Disclosed are a sound device and a portable terminal. The sound device includes a first vibration system including a bobbin voice coil, the bobbin voice coil being provided behind a first diaphragm and fixedly connected to the first diaphragm, the bobbin voice coil including a bobbin and a voice coil body formed by winding voice coil leads on the bobbin, one end of the bobbin away from the first diaphragm at least partially configured to protrude from the voice coil body; a second vibration system including a second diaphragm opposite to the first diaphragm; and a magnetic circuit system between the first diaphragm and the second diaphragm, the magnetic circuit system being provided with an avoiding portion. One end of the bobbin away from the first diaphragm is movable to penetrate through the avoiding portion and is fixedly connected to the second diaphragm.
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Patent Agency Ranking
公开(公告)号：US20210274288A1
公开(公告)日：2021-09-02
申请号：US17252597
申请日：2018-10-13
Applicant: GOERTEK INC.
Inventor： Ting Wang , Guodong Zhao , Jie Zhu , Chun Li , Chunfa Liu
Abstract: 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, the at least one intermediate layer is an adhesive layer, the speaker diaphragm has Young's modulus of 5-700 MPa and an amplitude of 0.25 mm-1 mm, and the speaker has F0 of 150-1500 Hz. The speaker has a good sounding effect.
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公开(公告)号：US10944313B2
公开(公告)日：2021-03-09
申请号：US15758879
申请日：2015-12-15
Applicant: GOERTEK INC.
Inventor： Fenglei Zu , Chunfa Liu
IPC: H02K33/18 , H02P25/032 , H02K33/16 , A63F13/24 , A63F13/285 , G06F3/01
Abstract: A self-adaptive control miniature motor comprises a driving unit (200), a mover (300) and a self-adaptive control unit (100). The driving unit comprises a fixed stator and a movable vibration block, and provides the driving force for the reciprocating motion of the mover through the interaction between the stator and the vibration block. The mover is a forced vibration part, and is driven by the movable vibration block of the driving unit to do the reciprocating motion. The self-adaptive control unit is used for controlling a motion state of the mover in real time by adjusting a force applied on the mover, based on a feedback information of the motion state of the mover. The self-adaptive control miniature motor, by combining the motor hardware with a control circuit, facilitates real-time adjustment of the magnetic field intensity in the motor, thus improving the stability of the vibration of the motor.
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公开(公告)号：US10375462B2
公开(公告)日：2019-08-06
申请号：US15552963
申请日：2015-12-18
Applicant: GOERTEK INC.
Inventor： Chunfa Liu , Xiaodong Guo
Abstract: A silica gel diaphragm, a receiver module, and a method for processing a silica gel diaphragm. Two metal pieces are integrally injection-molded on the diaphragm, and symmetrically embedded into the diaphragm, and either end of each of the metal pieces is provided with first and second soldering portions; each of the first soldering portions is embedded into a planar portion of the diaphragm, and is used for soldering a winding tap of a voice coil on an inner side of the voice coil; each of the second soldering portions protrudes from or is embedded into the fixing portion of the diaphragm, and is used for soldering a bonding pad on a housing; and middle portions connecting the first soldering portions and the second soldering portions are embedded into the diaphragm to form an electrically conductive path. This technical solution increases the product stability.
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公开(公告)号：US10341778B2
公开(公告)日：2019-07-02
申请号：US15750602
申请日：2016-05-09
Applicant: Goertek Inc.
Inventor： Chunfa Liu , Chao Xu , Jizong Wang
Abstract: A multifunctional device is provided, having vibration and sound generation functions, comprising a housing, a vibration system, a magnetic circuit system and an elastic support which are accommodated inside the housing, wherein the magnetic circuit system is support by the elastic support and is suspended inside the housing; the vibration system comprises a vibration diaphragm and a voice coil coupled to one side of the vibration diaphragm; and wherein the elastic support comprises a first fixing portion, second fixing portion, and a deformation portion which is connected between the first and second fixing portions; an orthographic projection of an outer contour of the elastic support in a vibration direction is in a shape of a polygon defined by straight lines or a geometrical shape defined by straight lines and arc lines; and the first fixing portion and the second fixing portion have a height difference there-between.
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公开(公告)号：US10284958B2
公开(公告)日：2019-05-07
申请号：US15552051
申请日：2015-12-18
Applicant: GOERTEK INC.
Inventor： Chunfa Liu , Xiaodong Guo
Abstract: A silica gel diaphragm, a speaker module, and a method for reprocessing a silica gel diaphragm. Two symmetrical wire grooves are etched on a surface of the silica gel diaphragm by laser etching technique, an electrically conductive metal layer is deposited in each of the grooves, and either end of each of the metal layers includes a first and second soldering portions. Each of the first soldering portions is deposited on a planar portion of the silica gel diaphragm, and is used for soldering a winding tap of a voice coil on an inner side of the voice coil. Each of the second soldering portions is deposited on a fixing portion of the silica gel diaphragm, and is used for soldering a bonding pad on a housing. Middle portions connecting the first soldering portions and the second soldering portions are deposited in the diaphragm to form an electrically conductive path.
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