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公开(公告)号：US20220182765A1
公开(公告)日：2022-06-09
申请号：US17600268
申请日：2020-02-19
发明人： Takayuki Tabata
摘要： A speaker device 1 includes: a speaker unit 20 including a magnetic circuit 22 and a diaphragm 21 connected to the magnetic circuit 22, and being capable of generating sound waves by electrically driving the magnetic circuit to vibrate the diaphragm 21; and a Helmholtz resonator 11 connected to the speaker unit 20. The diaphragm 21 includes a first surface oriented to a sealed space, and a second surface that is a back surface of the first surface and is oriented to the Helmholtz resonator 11.
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公开(公告)号：US20200336838A1
公开(公告)日：2020-10-22
申请号：US16755622
申请日：2018-08-22
发明人： Takayuki Tabata
摘要： A speaker unit, which can be made thin, includes: a magnetic circuit 61 having a space serving as a magnetic gap G formed inside a cylindrical portion 69; a voice coil 85 arranged in the magnetic gap G; and a diaphragm 51 having a center hole 51a that penetrates a center of the diaphragm, an outer peripheral portion 51b supported on a frame 53, and an inner peripheral portion 51c whose inner peripheral surface is connected to the voice coil 85. The cylindrical portion 69 of the magnetic circuit 61 includes a standing wall 69c formed along a vibration direction A of the diaphragm 51, and a slit 69a. The inner peripheral portion 51c of the diaphragm 51 includes an insert hole (a standing wall receiving portion) 57 in which the standing wall 69c is inserted, and an insert portion 59 which is inserted in the slit 69a.
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公开(公告)号：US11917388B2
公开(公告)日：2024-02-27
申请号：US17600268
申请日：2020-02-19
发明人： Takayuki Tabata
CPC分类号： H04R9/06 , H04R1/2811 , H04R9/025 , H04R9/043 , H04R2499/13
摘要： A speaker device includes a speaker unit including a magnetic circuit and a diaphragm, connected to the magnetic circuit and being capable of generating sound waves by electrically driving the magnetic circuit to vibrate the diaphragm; and a Helmholtz resonator connected to the speaker unit. The diaphragm includes a first surface oriented to a sealed space, and a second surface that is back surface of the first surface and is oriented to the Helmholtz resonator.
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公开(公告)号：US12088998B2
公开(公告)日：2024-09-10
申请号：US17615268
申请日：2020-04-27
发明人： Takayuki Tabata
CPC分类号： H04R1/2888 , H04R1/021 , H04R1/26 , H04R1/2857 , H04R9/025 , H04R2499/13
摘要： An on-vehicle woofer system includes: a speaker unit including a magnetic circuit and a diaphragm connected to the magnetic circuit, and capable of generating sound waves by electrically driving the magnetic circuit to vibrate the diaphragm; a Helmholtz resonator to which a first surface of the diaphragm is oriented, the Helmholtz resonator being connected to the speaker unit; a sealed container to which a second surface of the diaphragm that is a back surface of the first surface is oriented, the sealed container providing a sealed space connected to the speaker unit; and a tube penetrating the Helmholtz resonator, the speaker unit, and the sealed container.
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公开(公告)号：US20240236534A1
公开(公告)日：2024-07-11
申请号：US18557587
申请日：2022-04-21
发明人： Takayuki Tabata , Jun Yoshida
CPC分类号： H04R1/025 , H04R1/2811 , B60R2011/0003 , B60R11/0217 , H04R2400/11 , H04R2499/13
摘要： A speaker device is provided in the cabin interior of a vehicle at which a closed cross-section portion is formed by a cowl side panel and a front fender panel. The speaker device includes a speaker frame that is fixed to the cowl side panel and that partitions a space at a rear face side of a diaphragm relative to a space at a front face side of the diaphragm, and a port extending from a side face of the speaker frame, the port mutually communicating a first space at the rear face side of the diaphragm with an interior of the closed cross-section portion.
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公开(公告)号：US20220225017A1
公开(公告)日：2022-07-14
申请号：US17615268
申请日：2020-04-27
发明人： Takayuki Tabata
摘要： An on-vehicle woofer system includes: a speaker unit including a magnetic circuit and a diaphragm connected to the magnetic circuit, and capable of generating sound waves by electrically driving the magnetic circuit to vibrate the diaphragm; a Helmholtz resonator to which a first surface of the diaphragm is oriented, the Helmholtz resonator being connected to the speaker unit; a sealed container to which a second surface of the diaphragm that is a back surface of the first surface is oriented, the sealed container providing a sealed space connected to the speaker unit; and a tube penetrating the Helmholtz resonator, the speaker unit, and the sealed container.
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公开(公告)号：US11284198B2
公开(公告)日：2022-03-22
申请号：US16755622
申请日：2018-08-22
发明人： Takayuki Tabata
摘要： A speaker unit, which can be made thin, includes: a magnetic circuit 61 having a space serving as a magnetic gap G formed inside a cylindrical portion 69; a voice coil 85 arranged in the magnetic gap G; and a diaphragm 51 having a center hole 51a that penetrates a center of the diaphragm, an outer peripheral portion 51b supported on a frame 53, and an inner peripheral portion 51c whose inner peripheral surface is connected to the voice coil 85. The cylindrical portion 69 of the magnetic circuit 61 includes a standing wall 69c formed along a vibration direction A of the diaphragm 51, and a slit 69a. The inner peripheral portion 51c of the diaphragm 51 includes an insert hole (a standing wall receiving portion) 57 in which the standing wall 69c is inserted, and an insert portion 59 which is inserted in the slit 69a.
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