WO2024000688A1 - 一种同轴扬声器 - Google Patents

一种同轴扬声器 Download PDF

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Publication number
WO2024000688A1
WO2024000688A1 PCT/CN2022/106747 CN2022106747W WO2024000688A1 WO 2024000688 A1 WO2024000688 A1 WO 2024000688A1 CN 2022106747 W CN2022106747 W CN 2022106747W WO 2024000688 A1 WO2024000688 A1 WO 2024000688A1
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WO
WIPO (PCT)
Prior art keywords
fixed
diaphragm
sound
magnet part
magnetic
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PCT/CN2022/106747
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English (en)
French (fr)
Inventor
任璋
钟志威
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瑞声光电科技(常州)有限公司
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Priority to JP2022576432A priority Critical patent/JP2024526470A/ja
Publication of WO2024000688A1 publication Critical patent/WO2024000688A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the present invention relates to the field of electroacoustic conversion, and in particular to a coaxial speaker.
  • Coaxial loudspeakers refer to two sound-emitting units arranged on the same axis to emit treble and mid-bass respectively.
  • two sound-emitting units are stacked in the height direction, and each has an independent and separate magnetic circuit system, resulting in the height of the related art coaxial speaker product being too high and reducing product applicability.
  • the high cost of the magnetic circuit system reduces market competitiveness.
  • the purpose of the present invention is to overcome the above technical problems and provide a coaxial speaker that reduces product height and magnetic circuit system cost.
  • the present invention provides a coaxial speaker, which includes a first basket, a second basket, a magnetic circuit system, and coaxially arranged first and second sound-generating units.
  • the first basket The first sound-generating unit is arranged around the outside of the second basin frame, and the first sound-generating unit is arranged around the outside of the second sound-generating unit.
  • the first sound-generating unit includes a first diaphragm and drives the first diaphragm to vibrate.
  • the first voice coil that produces sound includes a second diaphragm and a second voice coil that drives the second diaphragm to vibrate and produce sound
  • the outer fixed part of the first diaphragm is fixed to the first Basin frame
  • the inner fixing part of the first diaphragm is fixed to the second basket frame
  • the second diaphragm is fixed to the second basket frame
  • the magnetic circuit system includes a bottom plate, and a base plate fixed to the second diaphragm.
  • the first voice coil Inserted in the first magnetic gap the first magnet part includes a first magnetic steel fixed on the bottom plate and a first pole core fixed on the first magnetic steel, and the second magnet part It includes an annular second magnet fixed on the bottom plate and an annular second pole core fixed on the second magnet.
  • the bottom plate is provided with a bent and extended pole inserted in the second magnet part.
  • An extension wall is spaced apart from the second magnet part to form a second magnetic gap, and the second voice coil is inserted in the second magnetic gap.
  • the second basket is fixed to the second pole core.
  • the first pole core includes a main body portion attached to the surface of the first magnetic steel and an extension portion extending from the main body portion in a direction away from the second magnet portion.
  • the basin frame is fixed to the extension part.
  • the first sound-generating unit further includes an elastic support member spaced apart from the first diaphragm, and a frame connecting the first diaphragm and the elastic support member, and the extension portions are respectively provided on the first diaphragm and the elastic support member.
  • the elastic support members are respectively arranged on the two opposite major axis sides of the coaxial speaker.
  • the frame includes legs for fixing the elastic support member. The legs are arranged between the first basin frame and the first magnet part, the outer fixing part of the elastic support member is fixed on the first basin frame, and the inner fixing part of the elastic support member is fixed on the Legs.
  • the elastic support member includes a flexible circuit board fixed to the legs and an auxiliary diaphragm fixed on the bottom surface of the flexible circuit board away from the first diaphragm.
  • the second diaphragm includes a spherical top
  • the spherical top includes a recessed portion formed by being recessed in a direction close to the magnetic circuit system, and a recessed portion protruding from the bottom of the recessed portion in a direction away from the magnetic circuit system. raised portion.
  • the first sound-emitting unit and the second sound-emitting unit are coaxially arranged, and the first sound-emitting unit is arranged around the outside of the second sound-emitting unit, thereby reducing the height of the product;
  • the magnetic circuit system includes a bottom plate, a third A magnet part and a second magnet part.
  • the first magnet part and the second magnet part are spaced apart to form a first magnetic gap of the first sound-generating unit.
  • the bottom plate is provided with an extension wall that is bent and extended and inserted into the second magnet part. The distance between the wall and the second magnet portion forms a second magnetic gap of the second sound-generating unit, thereby improving the structural utilization of the magnetic circuit system and reducing the cost of the magnetic circuit system.
  • Figure 1 is a perspective view of the coaxial speaker of the present invention
  • Figure 2 is a three-dimensional exploded view of the coaxial speaker of the present invention.
  • Figure 3 is a cross-sectional view along line A-A in Figure 1;
  • FIG. 4 is a cross-sectional view along line B-B in FIG. 1 .
  • the present invention provides a coaxial speaker 100.
  • the coaxial speaker 100 includes a first basket 11, a second basket 12, a magnetic circuit system 13, and a coaxially arranged first basket.
  • the first basin frame 11 is arranged around the outside of the second basin frame 12
  • the first sound-generating unit 14 is arranged around the outside of the second sound-generating unit 15 .
  • the first sound-generating unit 14 includes a first diaphragm 141 and a first voice coil 142 that drives the first diaphragm 141 to vibrate and produce sound.
  • the second sound-generating unit 15 includes a second diaphragm 151 and a first voice coil 142 that drives the second diaphragm 141 to vibrate and produce sound.
  • the diaphragm 151 vibrates the second voice coil 152 that produces sound.
  • the outer fixing portion 1411 of the first diaphragm 141 is fixed to the first frame 11
  • the inner fixing portion 1412 of the first diaphragm 141 is fixed to the second frame 12
  • the second diaphragm 141 is fixed to the first frame 11
  • 151 is fixed to the second frame 12 .
  • the first diaphragm 141 and the second diaphragm 151 are both fixed to the second frame 12 , thereby facilitating adjustment of the concentricity of the first diaphragm 141 and the second diaphragm 151 .
  • the magnetic circuit system 13 includes a bottom plate 131, and a first magnet part 132 and a second magnet part 133 fixed on the bottom plate 131.
  • the first magnet part 132 is disposed outside the second magnet part 133.
  • a first magnetic gap 1301 is formed at a distance from the second magnet part 133 , and the first voice coil 142 is inserted in the first magnetic gap 1301 .
  • the first magnet part 132 includes a magnet fixed on the bottom plate 131
  • the second magnet part 133 includes an annular second magnet 1331 fixed on the bottom plate 131 and the first pole core 1322 fixed on the bottom plate 131.
  • the annular second pole core 1332 on the second magnet 1331, the bottom plate 131 is provided with an extension wall 1311 that is bent, extended and inserted into the second magnet part 133.
  • the extension wall 1311 is connected to the second pole core 1332.
  • the two magnet parts 133 are spaced apart to form a second magnetic gap 1302, and the second voice coil 152 is inserted in the second magnetic gap 1302.
  • the first pole core 1322 includes a main body part 13221 attached to the surface of the first magnetic steel 1321 and an extension part 13222 extending from the main body part 13221 in a direction away from the second magnet part 133, so
  • the extension portions 13222 are respectively provided on two opposite long axis sides of the coaxial speaker 100 .
  • the first basket 11 is fixed to the extension portion 13222
  • the second basket 12 is fixed to the second pole core 1332 .
  • the first sound-generating unit 14 also includes an elastic support member 143 spaced apart from the first diaphragm 141, and a frame 144 connecting the first diaphragm 141 and the elastic support member 143.
  • the elastic support member 143 are respectively provided on two opposite short-axis sides of the coaxial speaker 100.
  • the frame 144 includes feet 1441 for fixing the elastic support member 143.
  • the feet 1441 are provided on the first basin frame 11 and the Between the first magnet portions 132 , the outer fixing portion 143 a of the elastic support member 143 is fixed to the first basin frame 11 , and the inner fixation portion 143 b of the elastic support member 143 is fixed to the legs 1441 .
  • the second diaphragm 151 includes a dome 1511.
  • the dome 1511 includes a recessed portion 15111 formed in a direction toward the magnetic circuit system 13 and a recessed portion 15111 extending away from the magnetic circuit system from the bottom of the recessed portion 15111.
  • the raised portion 15112 is formed by protruding in the direction of 13. The shape of the dome 1511 can reduce the mass while meeting the structural strength.
  • the elastic support 143 includes a flexible circuit board 1431 fixed with the legs 1441 and an auxiliary diaphragm 1432 fixed on the bottom surface of the flexible circuit board 1431 away from the first diaphragm 141.
  • the first voice coil 142 is electrically connected to the external power supply through the flexible circuit board 1431.
  • the bottom plate 131 is also provided with a through hole 1310.
  • the extension wall 1311 extends from the hole wall surrounding the through hole 1310.
  • the through hole 1310 is connected with the column hole surrounded by the extension wall 1311.
  • This communication A circuit plug-in for electrically connecting the second voice coil 152 to an external power supply can be provided in the area. In other embodiments, this connected area can also be filled with functional plug-ins such as sound-absorbing materials and thermal conductive materials to achieve different functional purposes.
  • the first sound-emitting unit and the second sound-emitting unit are coaxially arranged, and the first sound-emitting unit is arranged around the outside of the second sound-emitting unit, thereby reducing the height of the product;
  • the magnetic circuit system includes a bottom plate, a third A magnet part and a second magnet part.
  • the first magnet part and the second magnet part are spaced apart to form a first magnetic gap of the first sound-generating unit.
  • the bottom plate is provided with an extension wall that is bent and extended and inserted into the second magnet part. The distance between the wall and the second magnet part forms a second magnetic gap of the second sound-generating unit, thereby improving the structural utilization of the magnetic circuit system and reducing the cost of the magnetic circuit system.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本发明提供了一种同轴扬声器，包括第一盆架、第二盆架、磁路系统、以及同轴设置的第一发声单元和第二发声单元，第一盆架环绕设置于第二盆架的外侧，第一发声单元环绕设置于第二发声单元的外侧，第一发声单元固定于两个盆架之间，第二发声单元固定于第二盆架，磁路系统包括底板、第一磁体部和第二磁体部，第一磁体部设置于第二磁体部的外侧并与第二磁体部间隔形成第一发声单元的第一磁间隙，第二磁体部包括固定于底板上的环形的第二磁钢和固定于第二磁钢上的环形的第二极芯，底板设有弯折延伸插设于第二磁体部内的延伸壁，延伸壁与第二磁体部间隔形成第二发声单元的第二磁间隙。本发明的同轴扬声器降低了产品高度、降低了磁路系统成本。

Description

一种同轴扬声器
【 技术领域】
本发明涉及电声转换领域，尤其涉及一种同轴扬声器。
【 背景技术】
同轴扬声器是指在同一轴心上设置两个发声单元分别发出高音和中低音。相关技术的同轴扬声器，两个发声单元在高度方向上堆叠设置，并且各自具有独立分开的磁路系统，导致了相关技术的同轴扬声器产品的高度过高降低了产品适用性，独立分开的磁路系统的成本过高降低了市场竞争力。
因此，实有必要提供一种新的同轴扬声器解决上述技术问题。
【 发明内容】
本发明的目的是克服上述技术问题，提供一种降低了产品高度、降低了磁路系统成本的同轴扬声器。
为了实现上述目的，本发明提供一种同轴扬声器，包括第一盆架、第二盆架、磁路系统、以及同轴设置的第一发声单元和第二发声单元，所述第一盆架环绕设置于所述第二盆架的外侧，所述第一发声单元环绕设置于所述第二发声单元的外侧，所述第一发声单元包括第一振膜和驱动所述第一振膜振动发声的第一音圈，所述第二发声单元包括第二振膜和驱动所述第二振膜振动发声的第二音圈，所述第一振膜的外固定部固定于所述第一盆架，所述第一振膜的内固定部固定于所述第二盆架，所述第二振膜固定于所述第二盆架，所述磁路系统包括底板、以及固定于所述底板上的第一磁体部和第二磁体部，所述第一磁体部设置于所述第二磁体部的外侧并与所述第二磁体部间隔形成第一磁间隙，所述第一音圈插设于所述第一磁间隙，所述第一磁体部包括固定于所述底板上的第一磁钢和固定于所述第一磁钢上的第一极芯，所述第二磁体部包括固定于所述底板上的环形的第二磁钢和固定于所述第二磁钢上的环形的第二极芯，所述底板设有弯折延伸插设于所述第二磁体部内的延伸壁，所述延伸壁与所述第二磁体部间隔形成第二磁间隙，所述第二音圈插设于所述第二磁间隙。
优选的，所述第二盆架固定于所述第二极芯。
优选的，所述第一极芯包括贴附于所述第一磁钢的表面上的主体部和自所述主体部向远离所述第二磁体部的方向延伸的延伸部，所述第一盆架固定于所述延伸部。
优选的，所述第一发声单元还包括与所述第一振膜间隔设置的弹性支撑件、以及连接所述第一振膜和所述弹性支撑件的骨架，所述延伸部分别设置于所述同轴扬声器的两个相对的长轴边，所述弹性支撑件分别设置于所述同轴扬声器的两个相对的短轴边，所述骨架包括固定所述弹性支撑件的支脚，所述支脚设置于所述第一盆架和所述第一磁体部之间，所述弹性支撑件的外固定部固定于所述第一盆架，所述弹性支撑件的内固定部固定于所述支脚。
优选的，所述弹性支撑件包括与所述支脚固定的柔性电路板和固定于所述柔性电路板远离所述第一振膜的底面上的辅助振膜。
优选的，所述第二振膜包括球顶，所述球顶包括向靠近所述磁路系统的方向凹陷形成的凹陷部和自所述凹陷部的底部向远离所述磁路系统的方向凸起形成的凸起部。
本发明的同轴扬声器，其中第一发声单元和第二发声单元同轴设置，并且第一发声单元环绕设置于第二发声单元的外侧，从而降低了产品高度；其中磁路系统包括底板、第一磁体部和第二磁体部，第一磁体部和第二磁体部间隔形成了第一发声单元的第一磁间隙，同时底板设有弯折延伸插设于第二磁体部内的延伸壁，延伸壁与第二磁体部间隔形成了第二发声单元的第二磁间隙，从而提高了磁路系统的结构利用率，降低了磁路系统成本。
【 附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本发明领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本发明的同轴扬声器的立体图；
图2为本发明的同轴扬声器的立体分解图；
图3为沿图1中A-A线的剖面视图；
图4为沿图1中B-B线的剖面视图。
【具体实施方式】
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本发明领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
请参阅图1-4所示，本发明提供一种同轴扬声器100，所述同轴扬声器100包括第一盆架11、第二盆架12、磁路系统13、以及同轴设置的第一发声单元14和第二发声单元15。
所述第一盆架11环绕设置于所述第二盆架12的外侧，所述第一发声单元14环绕设置于所述第二发声单元15的外侧。
所述第一发声单元14包括第一振膜141和驱动所述第一振膜141振动发声的第一音圈142，所述第二发声单元15包括第二振膜151和驱动所述第二振膜151振动发声的第二音圈152。
所述第一振膜141的外固定部1411固定于所述第一盆架11，所述第一振膜141的内固定部1412固定于所述第二盆架12，所述第二振膜151固定于所述第二盆架12。所述第一振膜141和所述第二振膜151均固定于所述第二盆架12，从而有利于调整第一振膜141和第二振膜151的同心度。
所述磁路系统13包括底板131、以及固定于所述底板131上的第一磁体部132和第二磁体部133，所述第一磁体部132设置于所述第二磁体部133的外侧并与所述第二磁体部133间隔形成第一磁间隙1301，所述第一音圈142插设于所述第一磁间隙1301，所述第一磁体部132包括固定于所述底板131上的第一磁钢1321和固定于所述第一磁钢1321上的第一极芯1322，所述第二磁体部133包括固定于所述底板131上的环形的第二磁钢1331和固定于所述第二磁钢1331上的环形的第二极芯1332，所述底板131设有弯折延伸插设于所述第二磁体部133内的延伸壁1311，所述延伸壁1311与所述第二磁体部133间隔形成第二磁间隙1302，所述第二音圈152插设于所述第二磁间隙1302。所述第一极芯1322包括贴附于所述第一磁钢1321的表面上的主体部13221和自所述主体部13221向远离所述第二磁体部133的方向延伸的延伸部13222，所述延伸部13222分别设置于所述同轴扬声器100的两个相对的长轴边。
所述第一盆架11固定于所述延伸部13222，所述第二盆架12固定于所述第二极芯1332。
所述第一发声单元14还包括与所述第一振膜141间隔设置的弹性支撑件143、以及连接所述第一振膜141和所述弹性支撑件143的骨架144，所述弹性支撑件143分别设置于所述同轴扬声器100的两个相对的短轴边，所述骨架144包括固定所述弹性支撑件143的支脚1441，所述支脚1441设置于所述第一盆架11和所述第一磁体部132之间，所述弹性支撑件143的外固定部143a固定于所述第一盆架11，所述弹性支撑件143的内固定部143b固定于所述支脚1441。
所述第二振膜151包括球顶1511，所述球顶1511包括向靠近所述磁路系统13的方向凹陷形成的凹陷部15111和自所述凹陷部15111的底部向远离所述磁路系统13的方向凸起形成的凸起部15112。球顶1511的造型可以在满足结构强度的同时减轻质量。
所述弹性支撑件143包括与所述支脚1441固定的柔性电路板1431和固定于所述柔性电路板1431远离所述第一振膜141的底面上的辅助振膜1432，所述第一音圈142通过所述柔性电路板1431与外部电源电连接。
所述底板131还设有贯穿孔1310，所述延伸壁1311自围成所述贯穿孔1310的孔壁延伸形成，所述贯穿孔1310与所述延伸壁1311围成的柱孔连通，此连通区域内可以设置第二音圈152与外部电源电连接的电路插件，在其他实施方式中，此连通区域内还可以填充吸声材料、导热材料等功能插件实现不同的功能目的。
本发明的同轴扬声器，其中第一发声单元和第二发声单元同轴设置，并且第一发声单元环绕设置于第二发声单元的外侧，从而降低了产品高度；其中磁路系统包括底板、第一磁体部和第二磁体部，第一磁体部和第二磁体部间隔形成了第一发声单元的第一磁间隙，同时底板设有弯折延伸插设于第二磁体部内的延伸壁，延伸壁与第二磁体部间隔形成了第二发声单元的第二磁间隙，从而提高了磁路系统的结构利用率，降低了磁路系统成本。
以上所述的仅是本发明的实施方式，在此应当指出，对于本发明领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (6)

  1. 一种同轴扬声器，包括第一盆架、第二盆架、磁路系统、以及同轴设置的第一发声单元和第二发声单元，其特征在于，所述第一盆架环绕设置于所述第二盆架的外侧，所述第一发声单元环绕设置于所述第二发声单元的外侧，所述第一发声单元包括第一振膜和驱动所述第一振膜振动发声的第一音圈，所述第二发声单元包括第二振膜和驱动所述第二振膜振动发声的第二音圈，所述第一振膜的外固定部固定于所述第一盆架，所述第一振膜的内固定部固定于所述第二盆架，所述第二振膜固定于所述第二盆架，所述磁路系统包括底板、以及固定于所述底板上的第一磁体部和第二磁体部，所述第一磁体部设置于所述第二磁体部的外侧并与所述第二磁体部间隔形成第一磁间隙，所述第一音圈插设于所述第一磁间隙，所述第一磁体部包括固定于所述底板上的第一磁钢和固定于所述第一磁钢上的第一极芯，所述第二磁体部包括固定于所述底板上的环形的第二磁钢和固定于所述第二磁钢上的环形的第二极芯，所述底板设有弯折延伸插设于所述第二磁体部内的延伸壁，所述延伸壁与所述第二磁体部间隔形成第二磁间隙，所述第二音圈插设于所述第二磁间隙。
  2. 根据权利要求1所述的同轴扬声器，其特征在于，所述第二盆架固定于所述第二极芯。
  3. 根据权利要求1所述的同轴扬声器，其特征在于，所述第一极芯包括贴附于所述第一磁钢的表面上的主体部和自所述主体部向远离所述第二磁体部的方向延伸的延伸部，所述第一盆架固定于所述延伸部。
  4. 根据权利要求3所述的同轴扬声器，其特征在于，所述第一发声单元还包括与所述第一振膜间隔设置的弹性支撑件、以及连接所述第一振膜和所述弹性支撑件的骨架，所述延伸部分别设置于所述同轴扬声器的两个相对的长轴边，所述弹性支撑件分别设置于所述同轴扬声器的两个相对的短轴边，所述骨架包括固定所述弹性支撑件的支脚，所述支脚设置于所述第一盆架和所述第一磁体部之间，所述弹性支撑件的外固定部固定于所述第一盆架，所述弹性支撑件的内固定部固定于所述支脚。
  5. 根据权利要求4所述的同轴扬声器，其特征在于，所述弹性支撑件包括与所述支脚固定的柔性电路板和固定于所述柔性电路板远离所述第一振膜的底面上的辅助振膜。
  6. 根据权利要求1所述的同轴扬声器，其特征在于，所述第二振膜包括球顶，所述球顶包括向靠近所述磁路系统的方向凹陷形成的凹陷部和自所述凹陷部的底部向远离所述磁路系统的方向凸起形成的凸起部。
PCT/CN2022/106747 2022-06-30 2022-07-20 一种同轴扬声器 WO2024000688A1 (zh)

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CN108551634A (zh) * 2018-05-04 2018-09-18 珠海惠威科技有限公司 一种全频带同轴带式扬声器
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CN113596686A (zh) * 2021-07-30 2021-11-02 歌尔科技有限公司 同轴扬声器和电子设备
WO2022007174A1 (zh) * 2020-07-06 2022-01-13 瑞声声学科技(深圳)有限公司 发声器件

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US20200221214A1 (en) * 2017-09-17 2020-07-09 Oren Mordechai Low profile dual driver magnet
CN108551634A (zh) * 2018-05-04 2018-09-18 珠海惠威科技有限公司 一种全频带同轴带式扬声器
WO2022007174A1 (zh) * 2020-07-06 2022-01-13 瑞声声学科技(深圳)有限公司 发声器件
CN214101780U (zh) * 2020-12-25 2021-08-31 瑞声光电科技(常州)有限公司 发声器件
CN113596686A (zh) * 2021-07-30 2021-11-02 歌尔科技有限公司 同轴扬声器和电子设备

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