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公开(公告)号：US10712535B2
公开(公告)日：2020-07-14
申请号：US16010499
申请日：2018-06-17
发明人： Kenji Oinuma , Lei Zhang , Yanmei Wang , Yanli Xie
摘要： The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of glass material, the second lens is made of glass material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.
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公开(公告)号：US20200221196A1
公开(公告)日：2020-07-09
申请号：US16706789
申请日：2019-12-08
发明人： Xianjie Dong , Long Zhang
IPC分类号： H04R1/02
摘要： The present invention provides a mobile terminal, including: a housing including an upper cover, a lower cover covering the upper cover to form an accommodating space, and a sound channel penetrating through the upper cover; and a speaker unit accommodated in the accommodating space of the housing; the speaker unit dividing the accommodating space into a front sound cavity and a rear cavity; the sound channel communicating the front sound cavity with an outside; and where in, the speaker unit is fixed on the upper cover and enclosed together with the upper cover to from the front sound cavity; the sound channel is filled with a sound absorbing material.
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公开(公告)号：US20200213756A1
公开(公告)日：2020-07-02
申请号：US16705270
申请日：2019-12-06
发明人： Ping Liang , Bin Zhao
摘要： The present invention discloses a speaker having a vibrating system and a flexible circuit board. The vibrating system has a lower vibrating diaphragm with a first fastening portion, a second fastening portion, and a vibrating portion having a first and a second connecting portion and a middle portion. A vertical distance between a tangent line along a vertical vibrating direction at a first end of the first connecting portion and another tangent line along the direction of the middle portion is a first distance; another vertical distance between a tangent line along the direction at the second end of the second connecting portion and another tangent line along the direction of the middle portion is a second distance. Both the first and second distance are longer than a distance of the maximum elastic deformation of the flexible circuit board. The quality of speaker can be improved.
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公开(公告)号：US20200213751A1
公开(公告)日：2020-07-02
申请号：US16702590
申请日：2019-12-04
发明人： Mingming Chen , Xun Di , Bin Zhao
摘要： The present disclosure discloses a speaker, including a holder, a magnetic circuit unit and a vibration unit arranged in the holder, the vibration unit comprises a suspension fixed at the holder, a dome fixed at a center of the suspension and a voice coil connected to the dome, the dome is provided with recesses formed by recessing from the dome towards the magnetic circuit unit, a spacing is formed between at least two of the recesses, and the voice coil abuts against bottom walls of the recesses and forms a leakage passage with the dome at the spacing. The leakage passage enables a difference of internal and external air pressures of the voice coil to be effectively reduced after an amplitude of the vibration unit is increased; the voice coil becomes short and thick, and thus a magnetic flux is increased and structural strength of the dome itself is improved.
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公开(公告)号：US20200213749A1
公开(公告)日：2020-07-02
申请号：US16711398
申请日：2019-12-11
发明人： Minmin Chen , Xun Di , Bin Zhao
摘要： A speaker includes a frame; a magnetic circuit system in the frame; and a vibrating system in the frame. The vibrating system includes a suspension ring fixed on the frame, a number of domes fixed at a center of the suspension ring and a voice coil connected below the domes. The domes includes a first dome and a second dome stacked with each other. The second dome has a body part and a number of convex parts extending from the body part to the magnetic circuit system; a number of intervals each formed between every two contiguous convex parts. The convex part includes a bottom surface close to the magnetic circuit system. The voice coil buts the bottom surface and forms leakage passages with the second dome at the interval positions.
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公开(公告)号：US20200213748A1
公开(公告)日：2020-07-02
申请号：US16706740
申请日：2019-12-07
发明人： Xiaodong Liu , Long Zhang
摘要： The present invention discloses a speaker having a frame, a vibrating system and a magnetic circuit system. The vibrating system has a vibrating diaphragm, a voice coil for driving the vibrating diaphragm, and an elastic supporting assembly fixed on the frame and connected to the voice coil. The magnetic circuit system has a main magnet, a secondary magnet spaced on two opposite sides of the main magnet, a magnetic plate stacked on the secondary magnet and spaced away from the elastic supporting assembly, and an auxiliary magnet fixed on the magnetic plate and spaced away from the main magnet. The elastic supporting assembly is positioned on the other two opposite sides of the main magnet. The auxiliary magnetic located close to the vibrating diaphragm and facing to the elastic supporting assembly. The speaker of the present invention has advantages of good reliability and excellent acoustic performance.
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公开(公告)号：US20200213747A1
公开(公告)日：2020-07-02
申请号：US16706738
申请日：2019-12-07
发明人： Xiaodong Liu , Long Zhang
摘要： The present invention relates to a speaker having a frame, a magnetic circuit system and a vibrating system. The magnetic circuit system has a main magnet and an auxiliary magnet. The vibrating system has a vibrating diaphragm, a voice coil and a suspension with a first avoiding space. The auxiliary magnet is surrounding the main magnet and passed through the first avoiding space. The first avoiding space is positioned in the suspension so that the auxiliary magnet can be arranged around the main magnet, thereby enhancing the strength of the magnetic field of the magnetic circuit system, and ensuring uniform force on the vibrating diaphragm for improving BLX symmetry of the vibrating diaphragm.
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公开(公告)号：US20200213746A1
公开(公告)日：2020-07-02
申请号：US16706726
申请日：2019-12-07
发明人： Wei Song , Yunhu Nie , Zhiwei Zhong , Weiwei Tao
摘要： A micro-speaker includes a vibration unit including a diaphragm assembly and a voice coil assembly, a magnetic circuit unit including a yoke including a voice coil bobbin and a voice coil affixed to the voice coil bobbin, and a magnet provided on the yoke, and a holder including a holder bottom wall abutting against the yoke, a holder sidewall extending from a side of the holder bottom wall close to the magnet along a direction facing away from the yoke and forming a magnetic gap with the magnet in which the voice coil is disposed, and a magnetism shielding wall formed by extending from a side of the holder sidewall facing away from the yoke while being bent towards the voice coil, a side of the magnetism shielding wall facing away from the diaphragm being provided with a hollow annular magnetic conductive sheet spaced apart from the voice coil.
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公开(公告)号：US20200213696A1
公开(公告)日：2020-07-02
申请号：US16703900
申请日：2019-12-05
发明人： Chengliang Wang
摘要： The present disclosure provides a speaker box, including a first housing, a second housing, and a speaker unit. The first housing includes a top wall, a first sidewall, and a sound guiding channel. The top wall includes a first inner surface. The speaker unit is mounted on the first inner surface. The second housing includes a bottom wall and a second sidewall. The second sidewall divides the receiving space into a first space and a second space. The speaker unit is received in the first space. The speaker unit includes an FPC, and the FPC is drawn from a gap between the second sidewall and the top wall.
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公开(公告)号：US20200212832A1
公开(公告)日：2020-07-02
申请号：US16702600
申请日：2019-12-04
发明人： Hanlin Deng , Xiang Lu , Yajun Zheng , Xiuyue Wang
IPC分类号： H02P25/032 , G08B6/00
摘要： A method of generating motor driving signal includes: obtaining acceleration segment signal for driving motor to start vibrating, constant segment signal for achieving low-frequency vibration tactile effect of the motor, and attenuating segment signal for decreasing vibration quantity of the motor in low frequency manner, frequency of constant segment signal and of attenuating segment signal being smaller than frequency of acceleration segment signal; splicing the acceleration segment signal with the constant segment signal, and reserving idle period with no signal output therebetween to obtain first motor driving signal; adjusting parameter of constant segment signal of first motor driving signal according to vibration feeling requirement, and splicing attenuating segment signal after the adjusted first motor driving signal to obtain second motor driving signal; and adjusting parameter of attenuating segment signal of second motor driving signal, and determining second motor driving signal with highest braking efficiency as final motor driving signal.
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