WO2021103253A1 - 扬声器模组及电子装置 - Google Patents

扬声器模组及电子装置 Download PDF

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Publication number
WO2021103253A1
WO2021103253A1 PCT/CN2019/129000 CN2019129000W WO2021103253A1 WO 2021103253 A1 WO2021103253 A1 WO 2021103253A1 CN 2019129000 W CN2019129000 W CN 2019129000W WO 2021103253 A1 WO2021103253 A1 WO 2021103253A1
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WIPO (PCT)
Prior art keywords
housing
cavity
speaker module
damping
communication channel
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PCT/CN2019/129000
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English (en)
French (fr)
Inventor
霍新祥
尹爽
杨赟
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歌尔股份有限公司
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Publication of WO2021103253A1 publication Critical patent/WO2021103253A1/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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones

Definitions

  • the present invention relates to the technical field of acoustics, and more specifically, to a speaker module and an electronic device provided with the speaker module.
  • the speaker module as a sounding device usually adopts an independent cavity connected with the front acoustic cavity to adjust the FR high-frequency resonance.
  • the existing independent cavity design often has too much power to adjust the FR, which leads to the high-frequency resonance
  • the peaks appear deep troughs, making the FR high-frequency curve not flat enough, and product performance cannot be guaranteed.
  • the purpose of the present invention is to provide a speaker module and an electronic device to solve the problems of large fluctuations in the high frequency curve of the current speaker module, which causes the high frequency performance of the product to be not guaranteed.
  • the speaker module provided by the present invention includes a first housing, a second housing forming a housing space with the first housing, and a speaker unit arranged in the housing space, and a diaphragm of the speaker unit divides the housing space into The front acoustic cavity and the rear acoustic cavity; an independent cavity is also provided in the containing space; the independent cavity is connected to the front acoustic cavity through a communication channel; and a damping structure is provided in the communication channel.
  • a retaining wall extending in the direction of the first shell is provided on the second housing; a side wall of the second shell extending away from the speaker unit is provided on the retaining wall.
  • One end of the retaining wall is connected to the side wall of the second housing, and a communication channel is formed between the other end of the retaining wall and the other side wall of the second housing; the retaining wall, the extension arm and the second housing The side wall cooperates with the first housing to form an independent cavity.
  • the damping structure includes a partition plate provided at the communication channel and a through hole provided on the partition plate; and the independent cavity is connected to the front acoustic cavity through the through hole.
  • the through hole is a square hole, a round hole or an oval hole.
  • the damping structure includes at least one damping plate arranged in the communicating channel, and the damping plate is arranged in a direction parallel to the extending direction of the communicating channel; the damping plate is between the retaining wall and the side wall of the second housing.
  • a conduction gap is formed between the independent cavity and the front acoustic cavity through the conduction gap.
  • the damping plate has a linear structure, a wavy structure or a zigzag structure.
  • a preferred technical solution is to further include a third housing adapted to the first housing and/or the second housing.
  • a preferred technical solution is that the retaining wall, the extension arm, and the side wall of the second housing cooperate with the first housing to form a rear acoustic cavity;
  • the independent cavity is arranged adjacent to the rear acoustic cavity.
  • a sound channel connecting the front sound cavity with the outside is provided on the second housing; the sound channel and the independent cavity are respectively located on both sides of the speaker unit.
  • an electronic device including the speaker module as described above.
  • a damping structure is provided in the communication channel connecting the independent cavity and the front acoustic cavity, which can increase the acoustic damping of the communication channel without affecting the resonance frequency, thereby preventing the product FR curve from appearing deeper Low valley, improve the acoustic performance of the speaker module.
  • FIG. 1 is a schematic diagram of a partial structure of a speaker module according to the first embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a partial structure of a speaker module according to the second embodiment of the present invention.
  • the reference signs include: sound channel 1, front acoustic cavity 2, second housing 3, speaker unit 4, retaining wall 5, communication channel 6, damping structure 7, through hole 71, partition 72, damping structure 7 ', filter plate 8, independent cavity 9, extension arm 10, rear acoustic cavity 11.
  • the present invention provides a loudspeaker module.
  • the independent cavity of the speaker module is connected to the front acoustic cavity through the communicating channel, and a damping structure is arranged in the communicating channel, and the acoustic damping of the communicating channel is adjusted through the damping structure to reduce the fluctuation degree of the high-frequency curve of the product and improve the acoustic performance of the product .
  • Fig. 1 shows a schematic structure of a speaker module according to the first embodiment of the present invention.
  • the speaker module of the first embodiment of the present invention includes a first housing (not shown in the figure), a second housing 3 that forms a housing space with the first housing, and is arranged in the housing space
  • the speaker unit 4 the diaphragm of the speaker unit 4 separates the housing space into a front sound cavity 2 and a rear sound cavity 11; in addition, an independent cavity 9 except for the front sound cavity 2 and the rear sound cavity 11 is provided in the housing space.
  • the independent cavity 9 communicates with the front acoustic cavity 2 through a communication channel 6 provided on the first housing or the second housing, and a damping structure is arranged in the communication channel 6 to adjust the acoustic damping at the communication channel 6 through the damping structure.
  • the second housing 3 is provided with a retaining wall 5 extending in the direction of the first housing; the retaining wall 5 is provided with a side wall extending away from the speaker unit 4 to the side wall of the second housing 3
  • the extension arm 10 is arranged perpendicular to the retaining wall 5; one end of the retaining wall 5 is connected to the side wall of the second housing 3, and the other end of the retaining wall 5 is between the other side wall of the second housing 3
  • a communication channel 6 is formed, and a damping structure 7 is provided in the communication channel 6; the retaining wall 5, the extension arm 10, and the side wall of the second housing 3 cooperate with the first housing to form an independent cavity 9 through which the independent cavity 9 communicates
  • the channel 6 is connected to the front acoustic cavity 2, and the acoustic damping at the communication channel 6 is adjusted through the damping structure 7 in the communication channel 6.
  • the damping structure 7 includes a partition 72 arranged at the communication channel 6 and a through hole 71 arranged on the partition 72.
  • the height of the partition 72 is the same as the height of the retaining wall 5 and the extension arm 10.
  • the through holes 71 provided on the partition plate 72 may have various shapes such as square holes, circular holes, or elliptical holes, which can be specifically set according to product size and production requirements.
  • At least one filter plate 8 is also arranged in the independent cavity 9; the arrangement direction of the filter plate 8 is perpendicular or parallel to the extending direction of the communication channel 6, and the filter plate 8 can It is a straight plate structure or a wave-shaped structure.
  • the filter plate 8 can be installed in the independent cavity 9, or can be connected with the retaining wall 5 to extend into the independent cavity 9, or it can be more than one in the independent cavity 9
  • Various shape settings, such as a bent structure, a parallel structure, etc., through the filter plate 8 can reduce the resonance peak of the FR of the speaker module in the high frequency range, thereby improving the frequency response curve.
  • the side walls of the retaining wall 5, the extension arm 10, and the second housing 3 cooperate with the first housing to form the rear acoustic cavity 11; due to the arrangement of the retaining wall 5 and the extension arm 10, The independent cavity 9 and the rear acoustic cavity 11 are arranged adjacently, and the independent cavity 9 and the rear acoustic cavity 11 are separated by an extension arm 10.
  • the second housing 3 is also provided with a sound channel 1 that connects the front sound cavity 2 with the outside.
  • the sound channel and the independent cavity are respectively located on both sides of the speaker unit 4, the sound channel 1, the independent cavity 9 Together with the front acoustic cavity 2 to form the front cavity of the speaker module, the sound channel 1 is connected to the resonant cavity through the front acoustic cavity 2 and the communication channel 6.
  • the damping structure provided in the sound channel 1 can increase the acoustic resistance at the conduction (That is, the resistance of the vibrating airflow entering and communicating channel 6) reduces the quality factor of the speaker module, so that the FR of the speaker module becomes smooth in the high frequency range.
  • Fig. 2 shows a schematic structure of a speaker module according to the second embodiment of the present invention.
  • the speaker module of the second embodiment of the present invention includes a first housing, a second housing 3 that forms a housing space with the first housing, and a speaker unit 4 arranged in the housing space.
  • the diaphragm of the monomer 4 separates the housing space into a front acoustic cavity 2 and a rear acoustic cavity 11.
  • an independent cavity 9 other than the front acoustic cavity 2 and the rear acoustic cavity 11 is also provided in the housing space.
  • the communication channel 6 on the first housing or the second housing is in communication with the front acoustic cavity 2, and a damping structure is arranged in the communication channel 6, and the acoustic damping at the communication channel 6 is adjusted by the damping structure.
  • the second housing 3 is provided with a retaining wall 5 extending in the direction of the first housing; the retaining wall 5 is provided with a side wall extending away from the speaker unit 4 to the side wall of the second housing 3
  • the extension arm 10 is arranged perpendicular to the retaining wall 5; one end of the retaining wall 5 is connected to the side wall of the second housing 3, and the other end of the retaining wall 5 is between the other side wall of the second housing 3
  • a communication channel 6 is formed, and a damping structure 7'is provided in the communication channel 6; the retaining wall 5, the extension arm 10, and the side wall of the second shell 3 cooperate with the first shell to form an independent cavity 9 through which the independent cavity 9 passes
  • the communication channel 6 is connected to the front acoustic cavity 2, and the acoustic damping at the communication channel 6 is adjusted through the damping structure 7 ′ in the communication channel 6.
  • the damping structure 7 in the second embodiment, includes at least one damping plate arranged in the communicating channel 6.
  • the damping plate is arranged in a direction parallel to the extending direction of the communicating channel 6, and the damping plate is arranged in the communicating channel 6 but not
  • the communication channel 6 is completely blocked, so that between the damping plate (when at least two damping plates are provided), between the damping plate and the retaining wall 5, and between the damping plate and the side wall of the second shell 3 can be formed.
  • the independent cavity 9 and the front acoustic cavity 2 are connected through the conduction gap.
  • the damping plate can be a linear structure, a wave-shaped structure, or a zigzag structure.
  • Different numbers and shapes of damping plates are arranged in the communication channel 6, and the acoustic damping in the communication channel 6 can also be controlled. , So as to effectively prevent large fluctuations in the high-frequency curve of the product and ensure the stable acoustic performance of the product.
  • At least one filter plate 8 is arranged in the independent cavity 9; the arrangement direction of the filter plate 8 is perpendicular or parallel to the extending direction of the communication channel 6, and the filter plate 8 can be Straight plate structure or wave-shaped structure.
  • the filter plate 8 can be installed in the independent cavity 9, or it can be connected with the retaining wall 5 to extend into the independent cavity 9, or it can be in multiple types in the independent cavity 9
  • the filter plate 8 is arranged in a shape, such as a bent structure, a parallel structure, etc., through the filter plate 8 can reduce the resonance peak of the FR of the speaker module in the high frequency range, thereby improving the frequency response curve.
  • the side walls of the retaining wall 5, the extension arm 10, and the second housing 3 cooperate with the first housing to form the rear acoustic cavity 11; due to the arrangement of the retaining wall 5 and the extension arm 10, The independent cavity 9 and the rear acoustic cavity 11 are arranged adjacently, and the independent cavity 9 and the rear acoustic cavity 11 are separated by an extension arm 10.
  • the second housing 3 is also provided with a sound channel 1 connecting the front sound cavity 2 and the outside.
  • the sound channel 1 and the independent cavity are respectively located on both sides of the speaker unit 4.
  • the sound channel 1, an independent cavity 9 and the front acoustic cavity 2 together form the front cavity of the speaker module.
  • the sound channel 1 is connected to the resonant cavity through the front acoustic cavity 2 and the communication channel 6.
  • the damping structure provided in the sound channel 1 can increase the sound at the conduction.
  • the resistance that is, the resistance at the vibrating airflow entering and communicating channels reduces the quality factor of the speaker module, so that the FR of the speaker module becomes smooth in the high frequency range.
  • the speaker module may further include a third housing, and the third housing is matched with the first housing and/or the second housing.
  • the first shell, the second shell and the third shell cooperate with each other to form a front acoustic cavity, a rear acoustic cavity and an independent cavity.
  • the material of the damping structure can be selected from various materials with damping function.
  • the baffle or damping plate used as the damping structure can be individually pasted and fixed in the communication channel, or the damping structure can be selected to be connected to the speaker.
  • the housing (first housing, second housing or third housing) of the module is made of the same material, and the damping structure is integrally molded with the housing of the speaker module.
  • the present invention also provides an electronic device, which includes the above-mentioned speaker module.
  • the sound damping at the communication channel connecting the independent cavity and the front acoustic cavity can be adjusted through the partition and the through hole or damping plate provided on the partition, so that the FR of the speaker module can be adjusted at The high frequency band is more gentle, so as to achieve the purpose of improving the product frequency curve.

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

Abstract

本发明提供一种扬声器模组及电子装置，其中的扬声器模组包括第一壳体、与第一壳体形成收容空间的第二壳体，以及设置在收容空间内的扬声器单体，扬声器单体的振膜将收容空间分隔为前声腔和后声腔；在收容空间内还设置有独立腔体；独立腔体通过连通通道与前声腔导通；并且，在连通通道内设置有阻尼结构。利用上述发明能够通过阻尼结构改变连通通道的声阻尼，确保产品FR高频曲线平坦及性能稳定。

Description

扬声器模组及电子装置 技术领域
本发明涉及声学技术领域，更为具体地，涉及一种扬声器模组及设置有该扬声器模组的电子装置。
背景技术
近年来，消费类电子市场的扩大，使得大量手机、笔记本电脑得到广泛应用，而作为消费类电子产品中重要的声学部件，发声装置也存在广泛的需求。随着消费类电子产品在外观上轻薄化及性能上更加卓越化的要求，发声装置作为此类产品的一个重要组成单元，在其性能、尺寸、安全等方面也提出了越来越高的要求。
目前，作为发声装置的扬声器模组通常采用设置与前声腔连通的独立腔体来调节FR高频谐振，但是，现有的独立腔体设计往往对FR调节力度过大，从而导致在高频谐振峰出现较深的低谷，使得FR高频曲线不够平坦，产品性能得不到保证。
发明内容
鉴于上述问题，本发明的目的是提供一种，扬声器模组及电子装置，以解决目前扬声器模组存在的高频曲线波动值较大，导致产品高频性能得不到保证等问题。
本发明提供的扬声器模组，包括第一壳体、与第一壳体形成收容空间的第二壳体，以及设置在收容空间内的扬声器单体，扬声器单体的振膜将收容空间分隔为前声腔和后声腔；在收容空间内还设置有独立腔体；独立腔体通过连通通道与前声腔导通；并且，在连通通道内设置有阻尼结构。
此外，优选的技术方案是，在第二壳体上设置有向第一壳体方向延伸的挡墙；在挡墙上设置有向远离扬声器单体一侧延伸至第二壳体的侧壁处的延伸臂；挡墙的一端与第二壳体的侧壁连接，挡墙的另一端与第二壳体的另一 侧壁之间形成连通通道；挡墙、延伸臂以及第二壳体的侧壁与第一壳体配合形成独立腔体。
此外，优选的技术方案是，阻尼结构包括设置在连通通道处的隔板以及设置在隔板上的通孔；并且，独立腔体与前声腔之间通过通孔导通。
此外，优选的技术方案是，通孔为方形孔、圆形孔或者椭圆形孔。
此外，优选的技术方案是，阻尼结构包括设置在连通通道内的至少一个阻尼板，阻尼板的设置方向与连通通道的延伸方向相平行；阻尼板与挡墙以及第二壳体的侧壁之间形成导通间隙，独立腔体与前声腔之间通过导通间隙导通。
此外，优选的技术方案是，阻尼板为直线形结构、波浪形结构或者锯齿形结构。
此外，优选的技术方案是，还包括与第一壳体和/或第二壳体相适配的第三壳体。
此外，优选的技术方案是，挡墙、延伸臂以及第二壳体的侧壁与第一壳体配合形成后声腔；
独立腔体与后声腔相邻设置。
此外，优选的技术方案是，在第二壳体上设置有连通前声腔与外界的出声通道；出声通道与独立腔体分别位于扬声器单体的两侧。
根据本发明的另一方面，提供一种电子装置，包括如上任一项的扬声器模组。
利用上述扬声器模组及电子装置，在连通独立腔体和前声腔的连通通道内设置阻尼结构，能够在不影响谐振频率的同时增大连通通道的声阻尼，从而防止产品FR曲线出现较深的低谷，改善扬声器模组的声学性能。
为了实现上述以及相关目的，本发明的一个或多个方面包括后面将详细说明的特征。下面的说明以及附图详细说明了本发明的某些示例性方面。然而，这些方面指示的仅仅是可使用本发明的原理的各种方式中的一些方式。此外，本发明旨在包括所有这些方面以及它们的等同物。
附图说明
通过参考以下结合附图的说明，并且随着对本发明的更全面理解，本发明的其它目的及结果将更加明白及易于理解。在附图中：
图1为根据本发明实施例一的扬声器模组的局部结构示意图。
图2为根据本发明实施例二的扬声器模组的局部结构示意图。
其中的附图标记包括：出声通道1、前声腔2、第二壳体3、扬声器单体4、挡墙5、连通通道6、阻尼结构7、通孔71、隔板72、阻尼结构7’、滤波板8、独立腔体9、延伸臂10、后声腔11。
在所有附图中相同的标号指示相似或相应的特征或功能。
具体实施方式
在下面的描述中，出于说明的目的，为了提供对一个或多个实施例的全面理解，阐述了许多具体细节。然而，很明显，也可以在没有这些具体细节的情况下实现这些实施例。在其它例子中，为了便于描述一个或多个实施例，公知的结构和设备以方框图的形式示出。
为解决目前扬声器振膜的独立腔体结构对FR调节力度过大，从而导致在高频谐振峰出现较深的低谷，使得FR高频曲线不够平坦等问题，本发明提供一种扬声器模组，扬声器模组的独立腔体通过连通通道与前声腔导通，并在连通通道内设置阻尼结构，通过阻尼结构调节连通通道的声阻尼，以降低产品高频曲线的波动程度，提高产品的声学性能。
为详细描述本发明的扬声器模组的结构，以下将结合附图对本发明的具体实施例进行详细描述。
图1示出了根据本发明实施例一的扬声器模组的示意结构。
如图1所示，本发明实施例一的扬声器模组，包括第一壳体(图中未示出)、与第一壳体形成收容空间的第二壳体3，以及设置在收容空间内的扬声器单体4，扬声器单体4的振膜将收容空间分隔为前声腔2和后声腔11；此外，在收容空间内还设置有除前声腔2和后声腔11的独立腔体9，该独立腔体9通过设置在第一壳体或第二壳体上的连通通道6与前声腔2导通，并在连通通道6内设置阻尼结构，通过阻尼结构调整连通通道6处的声阻尼。
具体地，在第二壳体3上设置有向第一壳体方向延伸的挡墙5；在挡墙5上设置有向远离扬声器单体4一侧延伸至第二壳体3的侧壁处的延伸臂10， 延伸臂10与挡墙5垂直设置；挡墙5的一端与第二壳体3的侧壁连接，挡墙5的另一端与第二壳体3的另一侧壁之间形成连通通道6，在连通通道6内设置有阻尼结构7；挡墙5、延伸臂10以及第二壳体3的侧壁与第一壳体配合形成独立腔体9，独立腔体9通过连通通道6与前声腔2导通，并通过连通通道6内的阻尼结构7调整连通通道6处的声阻尼。
在该实施例一种，阻尼结构7包括设置在连通通道6处的隔板72以及设置在隔板72上的通孔71，该隔板72的高度与挡墙5及延伸臂10的高度相同，在将第二壳体3与第一壳体装配之后，独立腔体9与前声腔2通过隔板72上的通孔71导通，通过调整通孔71的尺寸可以对连通通道6内的声阻尼进行控制，从而有效防止产品高频曲线出现较大波动，确保产品的声学性能稳定。
在本发明的一个具体实施方式中，设置在隔板72上的通孔71可以为方形孔、圆形孔或者椭圆形孔等多种形状，具体可根据产品尺寸及生产要求进行设定。
此外，为进一步调节扬声器模组的高频特性，在独立腔体9内还设置有至少一个滤波板8；滤波板8的设置方向与连通通道6的延伸方向相垂直或平行，滤波板8可以为直板结构或波浪形结构，在设置过程中，滤波板8可以设置在独立腔体9内，也可以与挡墙5连接延伸至独立腔体9内，或者可以在独立腔体9内以多种形状设置，如弯折结构、平行结构等，通过滤波板8能够降低扬声器模组的FR在高频段的谐振峰，从而改善频率响应曲线。
在本发明的另一具体实施方式中，挡墙5、延伸臂10以及第二壳体3的侧壁与第一壳体配合形成后声腔11；由于挡墙5及延伸臂10的设置，使得独立腔体9与后声腔11相邻设置，且独立腔体9与后声腔11之间通过延伸臂10相隔离。
此外，在第二壳体3上还设置有连通前声腔2与外界的出声通道1，出声通道与独立腔体分别位于扬声器单体4的两侧，出声通道1、独立腔体9与前声腔2共同形成扬声器模组的前腔，出声通道1通过前声腔2及连通通道6与谐振腔导通，在出声通道1设置的阻尼结构，能够增大导通处的声阻(即振动气流进、连通通道6处的阻力)，降低扬声器模组的品质因数，使得该扬声器模组的FR在高频段变得平缓。
图2示出了根据本发明实施例二的扬声器模组的示意结构。
如图2所示，本发明实施例二的扬声器模组，包括第一壳体、与第一壳体形成收容空间的第二壳体3，以及设置在收容空间内的扬声器单体4，扬声器单体4的振膜将收容空间分隔为前声腔2和后声腔11；此外，在收容空间内还设置有除前声腔2和后声腔11的独立腔体9，该独立腔体9通过设置在第一壳体或第二壳体上的连通通道6与前声腔2导通，并在连通通道6内设置阻尼结构，通过阻尼结构调整连通通道6处的声阻尼。
具体地，在第二壳体3上设置有向第一壳体方向延伸的挡墙5；在挡墙5上设置有向远离扬声器单体4一侧延伸至第二壳体3的侧壁处的延伸臂10，延伸臂10与挡墙5垂直设置；挡墙5的一端与第二壳体3的侧壁连接，挡墙5的另一端与第二壳体3的另一侧壁之间形成连通通道6，在连通通道6内设置有阻尼结构7’；挡墙5、延伸臂10以及第二壳体3的侧壁与第一壳体配合形成独立腔体9，独立腔体9通过连通通道6与前声腔2导通，并通过连通通道6内的阻尼结构7’调整连通通道6处的声阻尼。
在该实施例二种，阻尼结构7’包括设置在连通通道6内的至少一个阻尼板，阻尼板的设置方向与连通通道6的延伸方向相平行，阻尼板设置在连通通道6内但并不是完全将连通通道6堵死，使得阻尼板之间(设置至少两个阻尼板的情况)、阻尼板与挡墙5之间，以及阻尼板与第二壳体3的侧壁之间均能形成导通间隙，独立腔体9与前声腔2之间通过导通间隙导通。
具体地，该阻尼板可以为直线形结构、波浪形结构或者锯齿形结构等，将不同个数及不同形状的阻尼板设置在连通通道6内，也能够对连通通道6内的声阻尼进行控制，从而有效防止产品高频曲线出现较大波动，确保产品的声学性能稳定。
此外，为进一步调节扬声器模组的高频特性，在独立腔体9内设置有至少一个滤波板8；滤波板8的设置方向与连通通道6的延伸方向相垂直或平行，滤波板8可以为直板结构或波浪形结构，在设置过程中，滤波板8可以设置在独立腔体9内，也可以与挡墙5连接延伸至独立腔体9内，或者可以在独立腔体9内以多种形状设置滤波板8，如弯折结构、平行结构等，通过滤波板8能够降低扬声器模组的FR在高频段的谐振峰，从而改善频率响应曲线。
在本发明的另一具体实施方式中，挡墙5、延伸臂10以及第二壳体3的侧壁与第一壳体配合形成后声腔11；由于挡墙5及延伸臂10的设置，使得独 立腔体9与后声腔11相邻设置，且独立腔体9与后声腔11之间通过延伸臂10相隔离。
此外，在第二壳体3上还设置有连通前声腔2与外界的出声通道1，出声通道1与独立腔体分别位于扬声器单体4的两侧，出声通道1、独立腔体9与前声腔2共同形成扬声器模组的前腔，出声通道1通过前声腔2及连通通道6与谐振腔导通，在出声通道1设置的阻尼结构，能够增大导通处的声阻(即振动气流进、连通通道处的阻力)，降低扬声器模组的品质因数，使得该扬声器模组的FR在高频段变得平缓。
在上述两个实施例中，扬声器模组还可以包括第三壳体，第三壳体与第一壳体和/或第二壳体相适配连接。第一壳体、第二壳体和第三壳体相互配合形成前声腔、后声腔及独立腔体。
在上述两个实施例中，阻尼结构的材质可选用现有具有阻尼功能的各种材质，作为阻尼结构的隔板或阻尼板可单独粘贴固定在连通通道内，也可将阻尼结构选用与扬声器模组的壳体(第一壳体、第二壳体或第三壳体)相同的材质，阻尼结构与扬声器模组的壳体一体注塑成型。
与上述扬声器模组相对应，本发明还提供一种电子装置，该电子装置包括上述扬声器模组。
利用上述扬声器模组及电子装置，通过隔板及设置在隔板上的通孔或者阻尼板对连接独立腔体及前声腔的连通通道处的声阻尼进行调整，能够使扬声器模组的FR在高频段更加平缓，从而达到改善产品频率曲线的目的。
如上参照图1和图2以示例的方式描述根据本发明的扬声器模组及电子装置。但是，本领域技术人员应当理解，对于上述本发明所提出的扬声器模组及电子装置，还可以在不脱离本发明内容的基础上做出各种改进。因此，本发明的保护范围应当由所附的权利要求书的内容确定。

Claims (10)

  1. 一种扬声器模组，包括第一壳体、与所述第一壳体形成收容空间的第二壳体，以及设置在所述收容空间内的扬声器单体，所述扬声器单体的振膜将所述收容空间分隔为前声腔和后声腔；其特征在于，
    在所述收容空间内还设置有独立腔体；
    所述独立腔体通过连通通道与所述前声腔导通；并且，
    在所述连通通道内设置有阻尼结构。
  2. 如权利要求1所述的扬声器模组，其特征在于，
    在所述第二壳体上设置有向所述第一壳体方向延伸的挡墙；
    在所述挡墙上设置有向远离所述扬声器单体一侧延伸至所述第二壳体的侧壁处的延伸臂；
    所述挡墙的一端与所述第二壳体的侧壁连接，所述挡墙的另一端与所述第二壳体的另一侧壁之间形成所述连通通道；
    所述挡墙、所述延伸臂以及所述第二壳体的侧壁与所述第一壳体配合形成所述独立腔体。
  3. 如权利要求1所述的扬声器模组，其特征在于，
    所述阻尼结构包括设置在所述连通通道处的隔板以及设置在所述隔板上的通孔；并且，
    所述独立腔体与所述前声腔之间通过所述通孔导通。
  4. 如权利要求3所述的扬声器模组，其特征在于，
    所述通孔为方形孔、圆形孔或者椭圆形孔。
  5. 如权利要求2所述的扬声器模组，其特征在于，
    所述阻尼结构包括设置在所述连通通道内的至少一个阻尼板，所述阻尼板的设置方向与所述连通通道的延伸方向相平行；
    所述阻尼板与所述挡墙以及所述第二壳体的侧壁之间形成导通间隙，所 述独立腔体与所述前声腔之间通过所述导通间隙导通。
  6. 如权利要求5所述的扬声器模组，其特征在于，
    所述阻尼板为直线形结构、波浪形结构或者锯齿形结构。
  7. 如权利要求1所述的扬声器模组，其特征在于，还包括与所述第一壳体和/或所述第二壳体相适配的第三壳体。
  8. 如权利要求2所述的扬声器模组，其特征在于，
    所述挡墙、所述延伸臂以及所述第二壳体的侧壁与所述第一壳体配合形成所述后声腔；
    所述独立腔体与所述后声腔相邻设置。
  9. 如权利要求1所述的扬声器模组，其特征在于，
    在所述第二壳体上设置有连通所述前声腔与外界的出声通道；
    所述出声通道与所述独立腔体分别位于所述扬声器单体的两侧。
  10. 一种电子装置，其特征在于，包括如权利要求1至9任一项所述的扬声器模组。
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