WO2022121533A1 - 一种音箱 - Google Patents

一种音箱 Download PDF

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Publication number
WO2022121533A1
WO2022121533A1 PCT/CN2021/125654 CN2021125654W WO2022121533A1 WO 2022121533 A1 WO2022121533 A1 WO 2022121533A1 CN 2021125654 W CN2021125654 W CN 2021125654W WO 2022121533 A1 WO2022121533 A1 WO 2022121533A1
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Prior art keywords
speaker
sound
sound box
additional
bottom case
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PCT/CN2021/125654
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English (en)
French (fr)
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江加宏
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高创(苏州)电子有限公司
京东方科技集团股份有限公司
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Publication of WO2022121533A1 publication Critical patent/WO2022121533A1/zh

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    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • 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

Definitions

  • the present invention relates to the technical field of sound generating devices, in particular to a sound box.
  • the size of the rear cavity of the speaker has a greater impact on the low frequency performance of the speaker. Specifically, the larger the volume of the rear cavity of the speaker, the better the low frequency performance of the speaker.
  • the volume utilization rate of the sound box is not high. Taking the SoundBar sound box as an example, the volume of the rear cavity of the speaker in the sound box is small, which makes the low frequency performance of the sound box unsatisfactory.
  • the present invention provides a sound box, which is used to improve the problem in the prior art that the volume ratio of the rear cavity of the speaker in the sound box is small.
  • the present invention provides the following technical solutions:
  • a loudspeaker comprising:
  • An additional sound cavity located in the accommodating space and corresponding to the speaker, the additional sound cavity communicates with the corresponding rear cavity of the speaker.
  • the loudspeaker is arranged on the mounting plate of the bottom case, the back cavity of the loudspeaker is formed in the bottom case, and an additional sound box connected to the back cavity of the loudspeaker is added in the accommodating space enclosed by the cover and the bottom case. Therefore, the volume of the rear cavity of the speaker is significantly increased while the overall volume of the speaker remains unchanged, and the proportion of the volume of the rear cavity of the speaker in the speaker is increased.
  • the increase in the volume of the rear cavity of the speaker optimizes the low-frequency performance of the speaker, and at the same time reduces the low-frequency distortion of the speaker.
  • the speaker is a speaker unit, and the rear cavity is formed between the rear end of the speaker unit and the bottom case.
  • an additional cover plate is included, the additional cover plate is fixed on the bottom case, and cooperates with the bottom case to define the additional sound cavity.
  • a side of the additional cover plate facing the bottom case is provided with a sound guide channel, one end of the sound guide channel is communicated with the additional sound cavity, and one end is communicated with the outside world.
  • the end of the sound guide channel communicating with the outside world is farther from the corresponding speaker than the end communicating with the additional sound cavity.
  • a surface of the additional cover plate facing away from the bottom case is formed with a platform portion.
  • two of the speakers are provided at intervals.
  • additional cover plates corresponding to the two speakers are located between the two speakers.
  • control circuit board is included, and the control circuit board is disposed on the platform portion of the additional cover plate.
  • a decorative light assembly is included, and the decorative light assembly is disposed on the platform portion of the additional cover plate;
  • the cover body is provided with light exit holes corresponding to the decorative lamp components.
  • the sound box is a columnar structure, and when a plurality of the speakers are included, the plurality of speakers are arranged at intervals along the axis direction of the sound box.
  • FIG. 1 is a schematic structural diagram of a sound box provided by an embodiment of the present invention after omitting a cover;
  • Fig. 2 is an exploded view of the sound box shown in Fig. 1;
  • FIG. 3 is a schematic structural diagram of a bottom case in a sound box provided by an embodiment of the present invention (plugs at both ends are not shown);
  • FIG. 4 is a schematic structural diagram of a sound box provided by an embodiment of the present invention.
  • Fig. 5 is a sectional view of the sound box shown in Fig. 1 (the dotted line range in the figure represents the rear cavity);
  • FIG. 6 is a schematic structural diagram of an additional cover plate in a sound box provided by an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of another angle of an additional cover plate in a sound box provided by an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another angle of an additional cover plate in a sound box provided by an embodiment of the present invention.
  • Fig. 9 is an enlarged view at A of Fig. 5;
  • FIG. 10 is a schematic structural diagram of a sound box provided by an embodiment of the present invention.
  • Icons 1-bottom shell; 11-installation plate; 12-rear cavity; 2-cover body; 21-light outlet; 3-speaker; 4-additional sound cavity; 5-additional cover plate; 51-sound guide channel; 52 -Platform part; 6-Decorative light assembly; 61-Light board; 62-Light guide plate.
  • a sound box provided by this embodiment includes:
  • a bottom case 1 and a cover body 2 which is covered on the bottom case 1 and is fixedly connected with the bottom case 1, wherein the bottom case 1 includes a mounting plate 11, and the mounting plate 11 cooperates with the cover body 2 to define a accommodating space, and the mounting plate 11 is provided with a mounting hole for installing the speaker 3; a rear cavity 12 of the speaker 3 is formed in the bottom case 1, as shown in FIG. 3;
  • the speaker 3 is arranged in the corresponding installation hole
  • the additional sound cavity 4 located in the accommodating space and corresponding to the speaker 3 communicates with the corresponding rear cavity 12 of the speaker 3 .
  • the speaker 3 is arranged on the mounting plate 11 of the bottom case 1 , and a rear cavity 12 of the speaker 3 is formed in the bottom case 1 .
  • the additional sound cavity 4 communicated with the rear cavity 12 of the speaker 3 is used, and the originally idle space in the sound box is utilized, so that the volume of the rear cavity 12 of the speaker 3 is significantly increased under the condition that the overall volume of the sound box remains unchanged, and the sound box is improved.
  • the increase in the volume of the rear cavity 12 of the speaker 3 optimizes and improves the low-frequency performance of the speaker. At the same time, it can reduce the low-frequency distortion of the speaker, improve the low-frequency sound quality of the speaker and the recognition rate of far-field intelligent voice interaction.
  • the air flow generated by the reciprocating vibration of the membrane layer is also larger, and the effect of heat exchange with the electronic devices in the speaker is better, which is beneficial to improve the heat dissipation performance of the speaker.
  • the cover body 2 is the sound-emitting surface of the speaker. Obviously, there will be a number of sound-outlet holes densely distributed.
  • the cover body 2 is a mesh cover structure, as shown in FIG. 4 .
  • the loudspeaker 3 is a loudspeaker unit, and the rear cavity 12 is formed between the rear end of the loudspeaker unit and the bottom case 1 .
  • the rear cavity 12 is formed in the self-contained casing, and then the sound box is installed on the bottom casing 1.
  • the rear end of the speaker unit is directly formed with the bottom casing 1.
  • the cavity 12 and the rear cavity 12 have smaller limitations and larger volumes, so that the volume of the rear cavity 12 can be further increased.
  • the sound box includes an additional cover plate 5 , the additional cover plate 5 is fixed on the bottom case 1 , and cooperates with the bottom case 1 to define an additional sound cavity 4 .
  • the additional cover plate 5 may be disposed on the mounting plate 11 of the bottom case 1 , for example, connected with the mounting plate 11 by bolts.
  • the additional cover plate 5 can also be formed integrally with the bottom case 1 .
  • the additional sound cavity 4 is located in the accommodating space enclosed by the bottom shell 1 and the cover body 2, and the additional cover plate 5 is directly arranged on the bottom shell 1 to form an additional sound box, which is beneficial to make the volume of the additional sound cavity 4 as large as possible. Therefore, the volume of the rear cavity 12 of the speaker 3 is made as large as possible.
  • the volume of the rear cavity 12 of the sound box speaker 3 provided in this embodiment is increased by about a quarter, and the low frequency of the sound box can be extended to the low frequency by about one octave (the sound box structure).
  • the rear cavity 12 is directly formed between the rear end of the speaker unit and the bottom shell 1 in this embodiment, compared with the structure of the speaker 3 with its own shell, the rear cavity 12 is formed, The installation space is saved, and more possibilities are provided for the selection of the loudspeaker 3. For example, the loudspeaker 3 with a larger diameter can be selected.
  • the sound box provided in this embodiment improves the entire acoustic system architecture, so that the sound box is improved and optimized at all levels.
  • the speaker provided in this embodiment can submerge the original 200Hz response to 100Hz, and a speaker with a larger volume can increase more low-frequency dive space.
  • the side of the additional cover plate 5 facing the bottom case 1 is provided with a sound guide channel 51 , one end of the sound guide channel 51 is communicated with the additional sound cavity 4 , and one end is communicated with the outside world. .
  • the sound guide channel 51 is directly integrated into the inner side of the additional cover plate 5 , which saves the installation space of the sound guide channel 51 , which is beneficial to further improve the utilization rate of the space inside the sound box.
  • using the acoustic radiation principle of the acoustic sound guiding channel 51 can better improve the low frequency response width; at the same time, through the extension of the low frequency, the low frequency distortion is optimized, and the abnormal situation in the music playback process caused by the low frequency distortion is improved.
  • integrating the sound guide channel 51 on the additional cover plate 5 can also effectively utilize the narrow space of the sound box, thereby improving the space utilization rate of the sound box.
  • the end of the sound guide channel 51 communicating with the outside world ie the air outlet of the guide channel
  • the end communicating with the additional sound cavity 4 is farther from the corresponding speaker 3 than the end communicating with the additional sound cavity 4 to reduce the influence of airflow on the performance of the speaker 3 .
  • the sound guide channel 51 into a radiator (ie, a pseudo-diaphragm design) according to the principle of acoustic design.
  • the surface of the additional cover 5 facing away from the bottom case 1 may be formed with a platform portion 52 , and functional devices and the like may be arranged on the platform portion 52 .
  • Isolating electronic components such as functional devices outside the acoustic cavity is conducive to ensuring a larger volume of the acoustic cavity; of course, according to operational requirements, electronic components such as functional devices can also be placed in the acoustic cavity.
  • the sound box includes two speakers 3 arranged at intervals.
  • the additional cover plate 5 corresponding to the two speakers 3 can be located between the two speakers 3, and the platform parts 52 of the two additional cover plates 5 cooperate to provide a larger support surface and facilitate the installation of functional devices.
  • the control circuit boards of the speakers can be arranged on the platform parts 52 of the two additional cover plates 5 .
  • the sound box may include a decorative light assembly 6, and the decorative light assembly 6 may also be arranged on the platform portion 52 of the additional cover plate 5; 2 is provided with a light exit hole 21 corresponding to the decorative lamp assembly 6 .
  • the decorative light assembly 6 includes a light plate 61 and a light guide plate 62 opposite to the light plate 61 .
  • the above-mentioned sound box can be a columnar structure, for example: the above-mentioned sound box can be a sound bar with a columnar structure or a prismatic structure; when a plurality of speakers 3 are included, the plurality of speakers 3 are arranged at intervals along the axis direction of the sound box .
  • the speaker may be a SoundBar speaker.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本发明涉及发声装置技术领域，公开了一种音箱，该音箱包括：底壳和罩设于底壳上并与底壳固接的罩体，其中，底壳包括安装板，安装板与罩体配合围设出容纳空间，并设有用于安装扬声器的安装孔；底壳内形成有扬声器的后腔；扬声器，设置于对应的安装孔中；位于容纳空间中且对应于扬声器的附加音腔，附加音腔与对应的扬声器的后腔连通。该音箱改善了现有技术中，音箱中扬声器后腔的体积占比较小的问题。

Description

一种音箱
相关申请的交叉引用
本申请要求在2020年12月07日提交中国专利局、申请号为202011437424.6、申请名称为“一种音箱”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及发声装置技术领域，特别涉及一种音箱。
背景技术
众所周知，扬声器后腔体积的大小对音箱的低频性能影响较大，具体地，扬声器后腔的体积越大，音箱的低频性能较好。然而，现有技术中，音箱的容积利用率却并不高，以SoundBar音箱为例，音箱中扬声器后腔的体积占比较小，使得音箱的低频性能并不理想。
发明内容
本发明提供了一种音箱，用于改善现有技术中，音箱中扬声器后腔的体积占比较小的问题。
为达到上述目的，本发明提供以下技术方案：
一种音箱，包括：
底壳和罩设于所述底壳上并与所述底壳固接的罩体，其中，所述底壳包括安装板，所述安装板与所述罩体配合围设出容纳空间，并设有用于安装扬声器的安装孔；所述底壳内形成有所述扬声器的后腔；
扬声器，设置于对应的所述安装孔中；
位于所述容纳空间中且对应于所述扬声器的附加音腔，所述附加音腔与对应的所述扬声器的后腔连通。
本发明提供的音箱，扬声器设置于底壳的安装板上，底壳内形成有扬声器的后腔，在罩体与底壳围设而成的容纳空间中增设了与扬声器后腔连通的附加音腔，将音箱内原本闲置的空间加以利用，从而在音箱整体体积不变的情况下，显著增大了扬声器后腔的体积，提高了音箱中扬声器后腔体积的占比。而扬声器后腔体积的增大，使得音箱的低频性能得以优化提升，同时，能够降低音箱的低频失真。
可选地，所述扬声器为扬声器单体，所述扬声器单体的后端与所述底壳之间形成所述后腔。
可选地，包括附加盖板，所述附加盖板固设于所述底壳上，与所述底壳配合限定出所述附加音腔。
可选地，所述附加盖板朝向所述底壳的一侧设有导音通道，所述导音通道一端与所述附加音腔连通，一端与外界连通。
可选地，所述导音通道与外界连通的一端较与所述附加音腔连通的一端远离对应的所述扬声器。
可选地，所述附加盖板背离所述底壳的面形成有平台部。
可选地，包括间隔设置的两个所述扬声器。
可选地，对应于两个所述扬声器的附加盖板位于两个所述扬声器之间。
可选地，包括控制电路板，所述控制电路板设置于所述附加盖板的平台部上。
可选地，包括装饰灯组件，所述装饰灯组件设置于所述附加盖板的平台部上；
所述罩体上设有对应于所述装饰灯组件的出光孔。
可选地，所述音箱为柱状结构，当包括多个所述扬声器时，多个所述扬声器沿所述音箱的轴线方向间隔设置。
附图说明
图1为本发明实施例提供的音箱省略罩体后的结构示意图；
图2为图1所示的音箱的分解图；
图3为本发明实施例提供的音箱中底壳的结构示意图(两端堵头未示出)；
图4为本发明实施例提供的音箱的结构示意图；
图5为图1所示的音箱的剖面图(图中虚线范围示意后腔)；
图6为本发明实施例提供的音箱中附加盖板的结构示意图；
图7为本发明实施例提供的音箱中附加盖板另一角度的结构示意图；
图8为本发明实施例提供的音箱中附加盖板另一角度的结构示意图；
图9为图5的A处放大图；
图10为本发明实施例提供的音箱的结构示意图。
图标：1-底壳；11-安装板；12-后腔；2-罩体；21-出光孔；3-扬声器；4-附加音腔；5-附加盖板；51-导音通道；52-平台部；6-装饰灯组件；61-灯板；62-导光板。
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，所描述的实施例仅仅是本发明一部分实施例，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他实施例，都属于本发明保护的范围。
如图1和图2所示，本实施例提供的一种音箱包括：
底壳1和罩设于底壳1上并与底壳1固接的罩体2，其中，底壳1包括安装板11，安装板11与罩体2配合围设出容纳空间，且安装板11设有用于安装扬声器3的安装孔；底壳1内形成有扬声器3的后腔12，如图3所示；
扬声器3，设置于对应的安装孔中；
位于容纳空间中且对应于扬声器3的附加音腔4，附加音腔4与对应的扬声器3的后腔12连通。
本实施例提供的音箱，扬声器3设置于底壳1的安装板11上，底壳1内形成有扬声器3的后腔12，在罩体2与底壳1围设而成的容纳空间中增设了 与扬声器3后腔12连通的附加音腔4，将音箱内原本闲置的空间加以利用，从而在音箱整体体积不变的情况下，显著增大了扬声器3后腔12的体积，提高了音箱中扬声器3后腔12体积的占比。而扬声器3后腔12体积的增大，使得音箱的低频性能得以优化提升，同时，能够降低音箱的低频失真，提升音箱的低频音质及远场智能语音交互识别率。
此外，扬声器3在工作过程中，膜层往复振动产生的气流也更大，与音箱内电子器件热交换的效果更好，有利于提升音箱的散热性能。
罩体2为音箱的出声面，显然，会密布有若干出声孔，例如：罩体2为网罩结构，如图4所示。
具体设置上述扬声器3时，如图5所示，一种可选的技术方案中，上述扬声器3为扬声器单体，扬声器单体的后端与底壳1之间形成上述后腔12。
相比于扬声器3自带壳体，在自带的壳体内形成后腔12，然后再安装到底壳1上的音箱，本实施例中扬声器单体的后端直接与底壳1之间形成后腔12，后腔12的局限性更小，体积更大，从而能够进一步增大后腔12的体积。
一种可选的技术方案中，音箱包括附加盖板5，附加盖板5固设于底壳1上，与底壳1配合限定出附加音腔4。具体地，附加盖板5可以设置于底壳1的安装板11上，例如：与安装板11通过螺栓连接。
作为一种替换方式，为了最大限度提高扬声器3的后腔3的体积，附加盖板5也可以与底壳1为一体成型结构。
附加音腔4位于底壳1与罩体2围设而成的容纳空间中，将附加盖板5直接设置于底壳1上形成附加音箱，有利于使得附加音腔4的体积尽可能大，从而使得扬声器3后腔12的体积尽可能大。
与现有技术中，相同规格的音箱相比，本实施例提供的音箱扬声器3的后腔12的体积约增大四分之一，音箱的低频可向低频延伸约一个倍频程(音箱结构不同，略有差异)；同时，由于本实施例中是扬声器单体的后端与底壳1之间直接形成后腔12，相比于扬声器3自带壳体，形成后腔12的结构，节省了安装空间，为扬声器3的选型提供了更多可能，例如：可以选择口径更 大的扬声器3。可见，本实施例提供的音箱改善了整个声学系统架构，使音箱在各层级均得到了提升和优化。例如：本实施例提供的音箱可将原200Hz的响应下潜至100Hz，容积更大的音箱则能够提升更多的低频下潜空间。
一种具体实现方式中，如图6和图7所示，附加盖板5朝向底壳1的一侧设有导音通道51，导音通道51一端与附加音腔4连通，一端与外界连通。
将导音通道51直接集成于附加盖板5的内侧，省去了导音通道51的安装空间，有利于进一步提高音箱内空间的利用率。同时，利用声学导音通道51的声学辐射原理，能够更好的改善低频响应宽度；同时通过低频的延伸，优化低频失真，改善低频失真带来的音乐重放过程中的不正常情况。
当音箱的截面形状为圆形时，在附加盖板5上集成导音通道51还能够有效利用音箱的狭小空间，从而提高音箱的空间利用率。
可选地，导音通道51与外界连通的一端(即导引通道的出气孔)较与附加音腔4连通的一端远离相应的扬声器3，以减少气流对扬声器3性能的影响。
作为一种替换方式，也可以按照声学设计原理，将导音通道51改为辐射器(即假振膜设计)。
如图8所示，附加盖板5背离底壳1的面可以形成有平台部52，功能器件等可以设置于上述平台部52上。
将功能器件等电子类部件隔离在声学腔体外，有利于保证声学腔体较大的体积；当然，根据作业需求，也可以将功能器件等电子类部件置于声学腔体中。
为了使得音箱的发声效果更好，一种可选的技术方案中，音箱包括间隔设置的两个扬声器3。
具体设置时，对应于两个扬声器3的附加盖板5可以位于两个扬声器3之间，两个附加盖板5的平台部52配合，能够提供更大的支撑面，更便于功能器件的安装。例如：音箱的控制电路板可以板设置于两个附加盖板5的平台部52上。
为了使得音箱声光效果具佳，如图9所示，一种具体实现方式中，音箱 可以包括装饰灯组件6，装饰灯组件6也可以设置于附加盖板5的平台部52上；罩体2上则设有对应于装饰灯组件6的出光孔21。可选地，装饰灯组件6包括灯板61和与灯板61相对的导光板62。
如图10所示，上述音箱可以为柱状结构，例如：上述音箱可以为圆柱状结构或棱柱状结构的条形音箱；当包括多个扬声器3时，多个扬声器3沿音箱的轴线方向间隔设置。例如：音箱可以为SoundBar音箱。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (11)

  1. 一种音箱，其特征在于，包括：
    底壳和罩设于所述底壳上并与所述底壳固接的罩体，其中，所述底壳包括安装板，所述安装板与所述罩体配合围设出容纳空间，并设有用于安装扬声器的安装孔；所述底壳内形成有所述扬声器的后腔；
    扬声器，设置于对应的所述安装孔中；
    位于所述容纳空间中且对应于所述扬声器的附加音腔，所述附加音腔与对应的所述扬声器的后腔连通。
  2. 根据权利要求1所述的音箱，其特征在于，所述扬声器为扬声器单体，所述扬声器单体的后端与所述底壳之间形成所述后腔。
  3. 根据权利要求2所述的音箱，其特征在于，包括附加盖板，所述附加盖板固设于所述底壳上，与所述底壳配合限定出所述附加音腔。
  4. 根据权利要求3所述的音箱，其特征在于，所述附加盖板朝向所述底壳的一侧设有导音通道，所述导音通道一端与所述附加音腔连通，一端与外界连通。
  5. 根据权利要求4所述的音箱，其特征在于，所述导音通道与外界连通的一端较与所述附加音腔连通的一端远离对应的所述扬声器。
  6. 根据权利要求3所述的音箱，其特征在于，所述附加盖板背离所述底壳的面形成有平台部。
  7. 根据权利要求1-6任一项所述的音箱，其特征在于，包括间隔设置的两个所述扬声器。
  8. 根据权利要求7所述的音箱，其特征在于，对应于两个所述扬声器的附加盖板位于两个所述扬声器之间。
  9. 根据权利要求8所述的音箱，其特征在于，包括控制电路板，所述控制电路板设置于所述附加盖板的平台部上。
  10. 根据权利要求8所述的音箱，其特征在于，包括装饰灯组件，所述 装饰灯组件设置于所述附加盖板的平台部上；
    所述罩体上设有对应于所述装饰灯组件的出光孔。
  11. 根据权利要求1-10任一项所述的音箱，其特征在于，所述音箱为柱状结构，当包括多个所述扬声器时，多个所述扬声器沿所述音箱的轴线方向间隔设置。
PCT/CN2021/125654 2020-12-07 2021-10-22 一种音箱 WO2022121533A1 (zh)

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