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公开(公告)号：US20240155294A1
公开(公告)日：2024-05-09
申请号：US17773167
申请日：2020-11-05
申请人： Goertek Inc.
发明人： JIANBIN YANG , Shousong Qiang , Chunfa Liu
摘要： Disclosed are a sound-producing device and an electronic terminal. The sound-producing device comprises: a voice coil, the voice coil including a bobbin and a voice coil body wound outside the bobbin; the voice coil is configured to be able to be input an electrical signal; a first damper group and a second damper group, each of the first damper group and the second damper group comprising a first connecting part connected with the voice coil, a second connecting part fixed to the sound-producing device and an elastic part connected between the first connecting part and the second connecting part; the first damper group is configured to be in electrical communication with the voice coil to input the electrical signal to the voice coil; the first damper group and the second damper group are fixed to the voice coil in parallel at different heights.
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公开(公告)号：US11974112B2
公开(公告)日：2024-04-30
申请号：US17773228
申请日：2020-11-05
申请人： Goertek Inc.
发明人： Jianbin Yang , Shousong Qiang , Chunfa Liu
摘要： Disclosed are a damper and a sound-producing device. The damper includes a first connecting part, a planar elastic part and a second connecting part. One side of the first connecting part is cooperatively connected to a voice coil; an end of the first connecting part is bent and extends toward the other side of the first connecting part to form the planar elastic part, the planar elastic part and the first connecting part being in the same plane; the second connecting part is connected to one end of the planar elastic part away from the first connecting part and is configured to be fixedly connected; the damper is of a line-like shape formed by winding of a metal wire, a Young's modulus of a wire rod of the metal wire is 0.7e11 pa to 3e11 pa, a mechanical stiffness Kms of a wire rod of the metal wire is 0.2 N/mm to 2 N/mm.
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公开(公告)号：US11930343B2
公开(公告)日：2024-03-12
申请号：US17050985
申请日：2018-12-11
申请人： GOERTEK INC.
发明人： Hanlong Cheng , Chengfei Zhang , Chunfa Liu
摘要： The present disclosure provides a sound generating unit, a sound generating module and electronic terminal, comprising a magnetic circuit system, a vibration system, and a circuit board. The voice coil is jointly wound by two voice coil wires, and the two end portions of each voice coil wire respectively form a wire-in end and a wire-out end; the lead-out positions of the two wire-in ends are located on one side of the voice coil, and the lead-out positions of the two wire-out ends are located on the other side of the voice coil; the two wire-in ends and the two wire-out ends are electrically connected to the corresponding pads of the circuit board respectively, and the internal circuit of the circuit board is configured to electrically connect the two wire-in ends together, and electrically connect the two wire-out ends together.
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公开(公告)号：US11902764B2
公开(公告)日：2024-02-13
申请号：US17628272
申请日：2019-08-13
申请人： GOERTEK INC.
发明人： Chunfa Liu , Fenglei Zu , Xinfeng Yang
摘要： Disclosed is a magnetic circuit structure of a transducer comprising a static magnetic field generating device which comprises magnet sets, the magnet sets comprise a first magnet set magnetized in a moving direction of the transducer, a second magnet set and a third magnet set located in a direction orthogonal to a static magnetic field generated by the first magnet set, a magnetization direction of the second magnet set is orthogonal to that of the first magnet set, a magnetization direction of the third magnet set is orthogonal to that of the second and first magnet sets, the second and third magnet sets increase a magnetic induction intensity of the static magnetic field. The magnetic circuit structure of the transducer in the present disclosure can effectively solve the problem that a driving force of the transducer applying thereof is not sufficient, thus increasing the efficiency of electric-to-mechanical conversion.
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公开(公告)号：US20220377464A1
公开(公告)日：2022-11-24
申请号：US17774550
申请日：2020-11-05
申请人： Goertek Inc.
发明人： JIANBIN YANG , Shousang Qiang , Chunfa Liu
摘要： Disclosed is a sound-producing device including a voice coil, comprising a bobbin and a voice coil body wound outside the bobbin; and a damper having a first connecting part and a second connecting part; wherein the first connecting part is fixedly connected to the voice coil, and the second connecting part is fixed on the sound-producing device; there is provided a planar elastic member between the first connecting part and the second connecting part, the planar elastic member is bent and extends from the first connecting part to the second connecting part; the damper is made of conductive material, and is configured to establish electrical communication with the voice coil; the sound-producing device has a height in a vibration direction thereof ranging from 5 mm to 200 mm.
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公开(公告)号：US20220360902A1
公开(公告)日：2022-11-10
申请号：US17619049
申请日：2020-04-21
申请人： Goertek Inc.
发明人： Shuqiang Wang , Bing Hui , Fengguang Ling , Chun Li , Chunfa Liu
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.
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公开(公告)号：US11457316B2
公开(公告)日：2022-09-27
申请号：US17252367
申请日：2018-10-13
申请人： GOERTEK INC.
发明人： Ting Wang , Guodong Zhao , Jie Zhu , Chun Li , Chunfa Liu
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.
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公开(公告)号：US10784758B2
公开(公告)日：2020-09-22
申请号：US15778639
申请日：2016-05-19
申请人： GOERTEK INC.
发明人： Chunfa Liu , Fenglei Zu
摘要： Disclosed is a linear vibration motor, comprising a vibrator and a stator, the vibrator comprises a counterweight block and a vibration block, the vibration block includes at least two magnets adjacently arranged and a magnetic conductive yoke disposed between any two adjacent magnets, and polarities of adjacent ends of two adjacent magnets are the same. The magnets are any combination of a permanent magnet and/or an electromagnet. The stator includes a stator coil disposed at one side, or upper and lower sides of the vibrator, and a magnetic conductive core disposed in the stator coil, and the axis direction of the stator coil is perpendicular to the magnetization direction of the magnets. The linear vibration motor adopts free combinations of permanent magnets and electromagnets to constitute the vibration block, and thus expands the implementation manners of the linear vibration motor so as to improve the flexibility in the production process.
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公开(公告)号：US10707737B2
公开(公告)日：2020-07-07
申请号：US15778764
申请日：2016-05-18
申请人： GOERTEK INC.
发明人： Chunfa Liu , Fenglei Zu
摘要： A linear vibration motor comprising a housing, a vibrator, and a stator fixed on the housing and arranged parallel to the vibrator, push-pull magnets (4) are symmetrically disposed at two ends of the vibrator; push-pull coils (2) surrounding the push-pull magnets are fixedly disposed on the housing at positions corresponding to the push-pull magnets; after the push-pull coils are energized, the push-pull coils and the push-pull magnets generate push-pull forces in a horizontal direction, which provides a driving force for the reciprocating motion of the vibrator in a direction parallel to the plane in which the stator is located. The push-pull structure provides push-pull force for the reciprocation motion of the vibrator, so that an intense vibration force can be achieved.
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公开(公告)号：US10530231B2
公开(公告)日：2020-01-07
申请号：US15776788
申请日：2016-05-19
申请人： GOERTEK INC.
发明人： Chunfa Liu , Fenglei Zu
IPC分类号： H02K33/18
摘要： A linear vibration motor includes a vibration block having permanent magnets and magnetic conductive yokes between adjacent permanent magnets; and a stator having stator coils arranged corresponding to the vibration block and magnetic conductive cores in the stator coils, a magnetic conductive brush being fixed on the magnetic conductive cores and a brush head of the brush being in elastic contact with the magnetic conductive yokes; or, a magnetic conductive brush being fixed on the magnetic conductive yokes and the brush head of the brush being in elastic contact with the magnetic conductive cores. The magnetic field lines generated by the vibration block can be concentrated to be conducted to the stator coils, thereby maximizing the effective magnetic field of the vibration block to improve the acting force between the vibrator and the and obtain an intensified vibration effect.
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