WO2018099074A1 - 一种扬声器模组 - Google Patents

一种扬声器模组 Download PDF

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Publication number
WO2018099074A1
WO2018099074A1 PCT/CN2017/091206 CN2017091206W WO2018099074A1 WO 2018099074 A1 WO2018099074 A1 WO 2018099074A1 CN 2017091206 W CN2017091206 W CN 2017091206W WO 2018099074 A1 WO2018099074 A1 WO 2018099074A1
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WIPO (PCT)
Prior art keywords
hole
cavity
pressure relief
boss
module
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PCT/CN2017/091206
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English (en)
French (fr)
Inventor
霍新祥
韩丹
杨赟
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Goertek Inc
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Goertek Inc
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Publication of WO2018099074A1 publication Critical patent/WO2018099074A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the present invention relates to the field of electroacoustic products, and in particular to a speaker module.
  • the speaker module is an important acoustic component of a portable electronic device for converting between an electrical signal and a sound signal, and is an energy conversion device.
  • the existing speaker module generally includes a module housing and a speaker unit.
  • the module housing defines a module cavity for housing the speaker unit, and the speaker unit separates the module cavity into Front and rear sound chambers.
  • the pressure relief device is an indispensable component of the speaker module.
  • the pressure relief device is often disposed between the front sound chamber and the rear sound chamber, so that the speaker module does not rely on the back sound chamber to relieve pressure.
  • the pressure relief device of the waterproof speaker module is generally configured such that a partition plate is disposed between the front sound chamber and the rear sound chamber in the speaker module, and the boss 8 is disposed on the partition plate, and the through hole is provided on the partition plate.
  • the through hole 71 communicates with the front acoustic cavity and the rear acoustic cavity, and the pressure relief groove 72 is extended from the through hole to the end side wall of the boss 8 to extend the pressure relief passage.
  • the front sound cavity of the waterproof speaker module is usually tested for water resistance by the air pressure test method. When the airtightness test is performed on the front sound cavity of the speaker module, it is necessary to release the pressure through the test tooling.
  • the passage covers the temporary seal before the airtightness test of the front chamber is performed.
  • the pressure relief groove 72 extends to the side wall of the end of the boss, and the pressure relief groove 72 has an opening in the side wall of the boss 8, since the test tool can only be covered from above.
  • the through hole 71 and the pressure relief groove 72 do not seal the opening of the pressure relief groove 72 on the side wall of the boss 8, so that it is difficult to temporarily seal the entire pressure relief passage.
  • the technical problem to be solved by the present invention is to provide a speaker module in which the pressure relief device is easy to temporarily seal.
  • a speaker module includes: a module housing, the module housing encloses a module cavity, and the module housing extends out of the module cavity a speaker unit, the speaker unit is mounted in the module cavity through a partition, and the speaker unit and the partition partition the module cavity into a front sound cavity and a rear sound cavity, wherein, the partition plate a boss having a through hole communicating with the front acoustic cavity and the rear acoustic cavity, and a first stepped hole formed by the through hole extending toward the rear acoustic cavity or the front acoustic cavity, and the first stepped hole is formed in the first stepped hole a cross-sectional profile of the first stepped hole surrounds a cross-sectional profile of the through-hole, and a pressure relief groove is further formed on an upper surface or a side surface of the boss, the pressure relief groove is The first stepped hole extends to the edge of the boss.
  • the first stepped hole is a hole having a circular, elliptical or polygonal cross section.
  • the partition plate is provided with a damping member covering the through hole on a side of the front sound chamber, and the boss is disposed on a side surface of the partition plate facing the rear sound chamber.
  • the damping member is a gas permeable, watertight waterproof membrane.
  • a damper groove is disposed on a side surface of the partition plate facing the front sound cavity, and in the damper groove, a double-sided tape, a waterproof film, and a double are sequentially disposed in a direction from the back sound cavity to the front sound cavity.
  • the surface rubber and the support plate, and the support plate is hollowed out corresponding to the through hole.
  • the damper groove communicates with the through hole through a second stepped hole, and a cross-sectional contour of the second stepped hole surrounds the through hole at a boundary surface of the second stepped hole and the through hole Section profile.
  • a surface of the boss is provided with a cover plate covering the through hole and some or all of the pressure relief grooves.
  • the surface of the boss against the side of the rear acoustic cavity is a plane, a slope or a curved surface
  • the cover plate has a covering surface that cooperates with a surface of the boss facing the side of the rear acoustic cavity.
  • the pressure relief groove is linear or curved.
  • the module housing includes an upper case, a middle case and a lower case that are fastened together, and the partition is disposed on the middle case.
  • a first stepped hole is formed in the surface of the boss opposite to the through hole, and a cross-sectional contour of the first stepped hole surrounds the cross-sectional profile of the through-hole The cross section is surrounded.
  • a pressure relief groove on the surface of the boss extends from the first stepped hole to the edge of the boss.
  • the sealing of the pressure passage makes it easy to temporarily seal the pressure relief passage, which facilitates the airtightness test of the front sound chamber, and makes the waterproof test of the front sound chamber of the waterproof speaker module easy to realize by the air pressure test method, thereby improving the test efficiency.
  • FIG. 1 is a schematic structural view of a pressure relief device in a conventional speaker module
  • FIG. 2 is a schematic structural view of a speaker module of the present invention
  • Figure 3 is a longitudinal cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is a schematic structural view of the middle case of Figure 2;
  • Figure 5 is a schematic structural view of the portion of the pressure relief device of Figure 4 (excluding the cover plate);
  • Figure 6 is a schematic structural view (including a cover plate) of the pressure relief device portion of Figure 4;
  • Figure 7 is a schematic view showing a state in which the pressure relief device of Figure 4 is temporarily sealed
  • Figure 8 is a partial structural view of the pressure relief passage of the pressure relief device of Figure 4.
  • an acoustic seal means that it is acoustically in an acoustically sealed state, that is, does not allow sound waves to pass through.
  • the speaker module of the embodiment includes a module housing and a speaker unit 4 housed in the module housing, the upper shell 1, the middle shell 2 and the lower The shells 3 are fastened together to form a module casing having a module cavity, the middle casing 2 extends out of the module cavity to the partition plate 21, and the speaker unit 4 is installed in the module cavity through the partition plate 21, and the speaker The unit 4 together with the partition plate 21 divides the module cavity enclosed by the module casing into two cavities of the front acoustic cavity 5 and the rear acoustic cavity 6.
  • the diaphragm 21 is provided with a pressure relief device including a pressure relief passage 7 that communicates the front sound chamber 5 and the rear sound chamber 6 and is acoustically sealed, that is, the sound located in the front sound chamber 5 does not pass through the pressure relief.
  • the passage 7 enters the rear sound chamber 6, so that the front sound chamber 5 is isolated from the rear sound chamber 6 to prevent the speaker from failing.
  • the pressure relief passage 7 includes a through hole 71 opened in the partition plate 21. Specifically, on the surface of the partition plate 21 facing the side of the rear acoustic chamber 6, there is a boss 8 which is a plane boss.
  • the pressure relief passage 7 includes a through hole 71 which is formed in the boss 8 and communicates with the front sound chamber 5 and the rear sound chamber 6.
  • the present invention does not limit the through.
  • the direction of the hole which can be slanted or even curved.
  • the through hole 71 extends in the direction of the rear acoustic cavity 6 out of the first stepped hole 73.
  • the first stepped hole 73 and the through hole 71 are concentric circular holes, and the diameter of the first stepped hole 73 is larger than the diameter of the through hole 71.
  • the first stepped hole 73 and the through hole 71 may also take a hole having an elliptical or polygonal cross section. Further, the through hole 71 and the first stepped hole 73 may be different from each other.
  • the cross-sectional profile of the first stepped hole 73 may be outside the cross-sectional profile of the through hole 71 on the boundary surface between the first stepped hole 73 and the through hole 71. . That is, on the boundary surface between the first stepped hole 73 and the through hole 71, all sides of the cross section of the first stepped hole 73 are located outside the sides of the cross section of the through hole 71, leaving between the sides of the through hole 71 a certain distance.
  • the boundary surface of the first stepped hole 73 and the through hole 71 may be parallel to the plane of the partition or may be inclined at an angle to the plane of the partition for placing the temporary test tool 13.
  • a pressure relief groove 72 is also formed in the upper surface of the boss 8, and the pressure relief groove 72 extends from the first stepped hole 73 to the edge of the boss 8, that is, a side opening is formed at the edge of the boss 8.
  • the pressure relief groove 72 extends over the surface of the boss 8, increasing the length of the pressure relief passage 7, and improving the damping effect of the pressure relief passage 7.
  • the pressure relief groove 72 may be formed on the side of the boss 8 and extend to the edge to form an opening on the adjacent side.
  • the present embodiment shows a circular first stepped hole 73 having a diameter larger than the diameter of the through hole.
  • the first stepped hole 73 can also take a hole whose cross section is an ellipse or a polygon.
  • the pressure relief passage 7 is acoustically sealed.
  • the acoustic seal means that it is acoustically in an acoustically sealed state, that is, does not allow sound waves to pass through.
  • the pressure relief passage 7 is acoustically sealed, that is to say, the sound in the front sound chamber 5 does not enter the rear sound chamber 6 through the pressure relief passage 7, so that the front sound chamber 5 and the rear sound chamber 6 can be insulated from each other. Prevent speaker failure.
  • the through hole 71 is covered by the temporary test tool 13, and the temporary test tool 13 may be
  • the columnar body having the same cross-sectional shape and size as that of the first stepped hole 73 may be a columnar body having a smaller cross section than the first stepped hole 73, and the through hole may be formed as long as the cross section thereof is larger than the cross section of the through hole 71. Cover it. If the boundary surface of the first stepped hole 73 and the through hole is inclined, the temporary test fixture 13 may have the same inclined surface.
  • the speaker module of the embodiment is easy to temporarily seal the front sound cavity, which facilitates the airtightness test of the front sound cavity 5, and makes the waterproof test of the front sound cavity of the waterproof speaker module easy to realize by the air pressure test method, thereby improving the test. effectiveness.
  • the acoustic sealing of the pressure relief passage 7 can be achieved by means well known to those skilled in the art, for example by making the pressure relief passage 7 small, or by other known means, increasing the damping of the pressure relief passage 7, It becomes a damping structure, so that sound can be prevented from propagating in the pressure relief passage 7.
  • a damper member covering the through hole 71 is provided on the surface of the partition plate 21 away from the pressure relief groove 72, that is, the surface of the partition plate 21 near the front sound chamber 5.
  • a damper groove 74 for accommodating the damper member is provided at the position of the partition 21 at the through hole 71.
  • a damper 9 capable of completely blocking the through hole 71 is provided in the damper groove 74.
  • the damper member is a gas permeable, water impermeable waterproofing membrane 9.
  • the double-sided tape 10 in the damper groove 74, the double-sided tape 10, the waterproof film 9, the double-sided tape 10 and the support plate 11 are sequentially placed in the direction from the back sound chamber to the front sound chamber, that is, through the double-sided
  • the glue fixes the waterproof film in the damper groove 74, and the support plate is hollowed out corresponding to the through hole 71.
  • the damper groove 74 communicates with the through hole 71 through a second stepped hole 75 concentric with the through hole 71.
  • a damper member is not placed in the second stepped hole 75, and the damper member is placed in the damper groove 74.
  • the second stepped hole 75 can maintain the gas permeability of the damper member and facilitate the affixing of the damper member in the damper groove 74.
  • the surface of the boss 8 is provided with a cover 12, which may be a spring pad, fixed to the partition 21, and the through hole 71, the first step hole 73 and all or
  • the partial pressure relief groove 72 covers the through hole 71, the first stepped hole 73, the pressure relief groove 72, and the cover plate 12 to surround the pressure relief passage 7 described above. Since the pressure relief groove extends all the way to the edge of the boss, even if the cover 12 completely covers the upper surface of the boss, that is, although the pressure relief groove 72 on the boss is covered, the pressure relief groove is not blocked on the boss. The opening at the edge. It is easy to operate and there is no risk of completely obstructing the pressure relief groove due to operational errors.
  • the cover plate is correspondingly in the form of a bend, which can cover the through hole 71 and the pressure relief groove on the side at the same time without releasing the pressure on the other side due to an operation error.
  • the opening of the slot is covered.
  • the pressure relief groove 72 extends over the surface of the boss 8, thereby increasing the length of the pressure relief passage 7, and improving the damping effect of the pressure relief passage 7.
  • the pressure relief groove 72 is linear, and of course, may be curved, wherein the curved pressure relief groove 72 has a relatively long length of the pressure relief passage 7 and a better damping effect.
  • the surface of the boss 8 on the side of the rear acoustic cavity is a plane, a slope or a curved surface
  • the cover has a surface opposite to the side of the boss facing the rear cavity
  • the mating cover surface for example, the surface of the boss 8 on the side toward the rear acoustic cavity is a flat surface
  • the cover plate 12 also has a cover surface that fits the plane, and the through hole 71 and the pressure release groove 74 can be covered.
  • the pressure relief groove may be formed on the side of the boss 8 and also extends from the first stepped hole 73 to the edge of the boss.
  • the cover plate 12 may be a bent spring pad.
  • the through hole 71 of the upper surface of the boss can be covered, and all or part of the pressure relief groove of the side surface can be covered, but the opening of the pressure relief groove at the edge of the boss is not blocked.
  • the first step hole 73 is covered from the boss 8 by the temporary test tool 13, and there is no need to vent.
  • the pressure groove can be sealed by the pressure groove, which is easy to temporarily seal the front sound cavity, which facilitates the airtightness test of the front sound chamber 5, and enables the waterproof test of the front sound cavity of the waterproof speaker module by the air pressure test method. Easy to implement and improved test efficiency.
  • the boss is disposed on the side of the diaphragm facing the rear sound chamber, and the damper is disposed on the side of the partition toward the front sound chamber.
  • the present invention is not limited thereto, and the boss may be disposed at the partition.
  • the plate rests on the side of the front sound chamber, and the damping member is disposed on the side of the partition plate facing the rear sound chamber.
  • a first stepped hole is formed in the through hole at the surface of the boss, and the pressure releasing groove on the surface of the boss extends from the first stepped hole to the edge of the boss.
  • the through hole is covered by the test tool from the boss, and the pressure relief channel can be realized without covering the pressure relief groove.
  • the sealing makes it easy to temporarily seal the pressure relief passage, which facilitates the airtightness test of the front sound chamber, and makes the waterproof test of the front sound chamber of the waterproof speaker module easy to realize by the air pressure test method, thereby improving the test efficiency.
  • the boss is covered by the cover plate. Since the pressure relief groove is also formed with an opening on the side of the boss, the cover plate can ensure the smoothness of the pressure relief passage even if the pressure relief groove on the upper surface of the boss is completely blocked.

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

Abstract

公开了一种扬声器模组，包括模组外壳及收容在模组外壳内的扬声器单体，模组外壳向模组内腔延伸出隔板，扬声器单体通过隔板安装在模组内腔中，且扬声器单体与隔板将模组外壳围成的模组内腔分隔为前声腔和后声腔，隔板上设有连通前声腔与后声腔、且声学密封的泄压通道，泄压通道包括开设于隔板上的贯通孔，隔板上位于贯通孔的位置设有凸台，凸台的表面上正对贯通孔处开设有贯通的第一台阶孔，在所述第一台阶孔与贯通孔的边界面上，所述第一台阶孔的截面轮廓包围所述贯通孔的截面轮廓；凸台的表面上开设有泄压槽，泄压槽从第一台阶孔延伸至凸台边缘。本扬声器模组，泄压装置易于临时密封，便于进行前声腔的气密性测试，提高测试效率。

Description

一种扬声器模组 技术领域
本发明涉及电声产品技术领域，具体地说，是涉及一种扬声器模组。
背景技术
扬声器模组是便携式电子设备的重要声学部件，用于完成电信号与声音信号之间的转换，是一种能量转换器件。现有的扬声器模组，一般包括模组外壳及扬声器单体，所述模组外壳内形成收容所述扬声器单体的模组内腔，所述扬声器单体将所述模组内腔分隔为前声腔和后声腔。
为了能够实现后声腔气压与外界气压保持平衡，泄压装置是扬声器模组必不可少的部件。现有的扬声器模组，泄压装置往往设置在前声腔和后声腔之间，从而使扬声器模组不依赖后声腔泄压。
参照图1，防水扬声器模组的泄压装置通常的结构是在扬声器模组中的前声腔与后声腔之间设置隔板，隔板上设置凸台8，隔板上开设有贯通凸台8的贯通孔71，贯通孔71连通前声腔与后声腔，凸台8上自贯通孔至凸台8的端头侧壁延伸开设有泄压槽72，以延长泄压通道。在扬声器模组的生产过程中，通常通过气压测试的方法来对防水扬声器模组的前声腔进行防水测试，在对扬声器模组的前声腔进行气密性测试时，需要通过测试工装将泄压通道盖住临时密封，然后才能进行前声腔的气密性测试。但是现有的扬声器模组的这种结构，泄压槽72一直延伸至凸台的端头侧壁，泄压槽72在凸台8的侧壁上有开口，由于测试工装只能从上方盖住贯通孔71和泄压槽72，不能密封泄压槽72在凸台8的侧壁上的开口，因此难以将泄压通道整体临时密封。
发明内容
本发明所要解决的技术问题是：提供一种泄压装置易于临时密封的扬声器模组。
为解决上述技术问题，本发明的技术方案是：采用一种扬声器模组，包括：模组外壳，所述模组外壳包围模组内腔，且模组外壳向模组内腔延伸出隔板；扬声器单体，所述扬声器单体通过隔板安装在模组内腔中，且所述扬声器单体与隔板将所述模组内腔分隔为前声腔和后声腔，其中，在隔板上具有凸台，在所述凸台上具有连通前声腔与后声腔的贯通孔，以及由所述贯通孔向后声腔或前声腔延伸形成的第一台阶孔，在所述第一台阶孔与贯通孔的边界面上，所述第一台阶孔的截面轮廓包围所述贯通孔的截面轮廓，在所述凸台的上表面或侧面还开设有泄压槽，所述泄压槽从所述第一台阶孔延伸至凸台的边缘。
优选地，所述第一台阶孔为横截面是圆形、椭圆形或多边形的孔。
优选地，所述隔板靠向所述前声腔的一侧设有覆盖所述贯通孔的阻尼件，所述凸台设置在所述隔板靠向后声腔的一侧表面上。
优选地，所述阻尼件为透气不透水的防水膜。
优选地，在所述隔板靠向前声腔的一侧表面上设置有阻尼件槽，在所述阻尼件槽内，沿从后声腔向前声腔的方向依次放置双面胶、防水膜、双面胶和支撑板，且支撑板对应贯通孔处镂空。
优选地，所述阻尼件槽通过第二台阶孔与所述贯通孔连通，在所述第二台阶孔与贯通孔的边界面上，所述第二台阶孔的截面轮廓包围所述贯通孔的截面轮廓。
优选地，所述凸台的表面上设有盖板，所述盖板覆盖所述贯通孔以及部分或全部的所述泄压槽。
优选地，所述凸台靠向后声腔一侧的表面为平面、斜面或弧面，并且所述盖板具有与所述凸台的靠向后声腔一侧的表面相配合的遮盖面。
优选地，所述泄压槽呈直线状或者弯曲状。
优选地，所述模组外壳包括扣合在一起的上壳、中壳和下壳，所述隔板设置在所述中壳上。
采用了上述技术方案后，本发明的有益效果是：
本发明的扬声器模组，凸台的表面上正对贯通孔处开设有第一台阶孔，第一台阶孔与贯通孔的边界面上，第一台阶孔的截面轮廓包围贯通孔的截面轮廓的截面轮廓包围。凸台表面上的泄压槽，从所述第一台阶孔延伸至凸台的边缘。此种结构的扬声器模组，在对扬声器模组的前声腔进行气密性测试时，通过测试工装从凸台上将第一台阶孔盖住，不用再将泄压槽盖住即可实现泄压通道的密封，易于使泄压通道实现临时密封，方便了前声腔的气密性测试，使通过气压测试的方法来对防水扬声器模组的前声腔进行防水测试易于实现，提高了测试效率。
附图说明
图1是现有的扬声器模组中泄压装置的结构示意图；
图2是本发明的扬声器模组的结构示意图；
图3是沿图2A-A向的纵向剖视示意图；
图4是图2中中壳的结构示意图；
图5是图4中泄压装置部分的结构示意图(不包括盖板)；
图6是是图4中泄压装置部分的结构示意图(包括盖板)；
图7是对图4中的泄压装置进行临时密封的状态示意图；
图8是图4中的泄压装置的泄压通道的部分结构示意图；
图中：1、上壳；2、中壳；21、隔板；3、下壳；4、扬声器单体；5、前声腔；6、后声腔；7、泄压通道；71、贯通孔；72、泄压槽；73、第一台阶孔；74、阻尼件槽；75、第二台阶孔；8、凸台；9、防水膜；10、双面胶；11、支撑板；12、盖板；13、临时密封工装。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，且不用于限定本发明。
声学密封：对于本领域的技术人员来说，声学密封的含义为在声学上处于声密封的状态，也就是说，不允许声波穿过。
参照图2、图3、图4、图5以及图6，本实施例的扬声器模组，包括模组外壳及收容在模组外壳内的扬声器单体4，上壳1、中壳2和下壳3扣合在一起形成具有模组内腔的模组外壳，中壳2向模组内腔延伸出隔板21，扬声器单体4通过隔板21安装在模组内腔中，并且，扬声器单体4与隔板21一起将模组外壳围成的模组内腔分隔为前声腔5和后声腔6两个腔体。
隔板21上设有泄压装置，泄压装置包括连通前声腔5与后声腔6、且声学密封的泄压通道7，也就是说，位于前声腔5中的声音不会穿过该泄压通道7进入后声腔6中，从而可以保证前声腔5与后声腔6的隔绝，以防止扬声器发生失效。泄压通道7包括开设于隔板21上的贯通孔71。具体地说，在隔板21靠向后声腔6一侧的表面上具有凸台8，该凸台为平面凸台。泄压通道7包括开设于凸台8上的连通前声腔5与后声腔6的贯通孔71，虽然图8中所示贯通孔71是垂直于隔板21的，但本发明并不限制该贯通孔的方向，其可以是倾斜的，甚至是弯曲的。贯通孔71向后声腔6方向延伸出第一台阶孔73。图5中第一台阶孔73和贯通孔71为同心的圆孔，第一台阶孔73的直径大于贯通孔71的直径。不过，第一台阶孔73、贯通孔71还可以采取横截面是椭圆形或者多边形的孔。并且，贯通孔71与第一台阶孔73也可以不同心，只要在第一台阶孔73与贯通孔71的边界面上，第一台阶孔73的截面轮廓在贯通孔71的截面轮廓外侧即可。也就是说，在第一台阶孔73与贯通孔71的边界面上，第一台阶孔73的截面的所有边都位于贯通孔71的截面的所有边的外侧，两者的边之间留有一定的距离。
第一台阶孔73与贯通孔71边界面可以是平行于隔板平面的，也可以是与隔板平面呈一定倾角的，该边界面上用于放置临时测试工装13。
在凸台8的上表面还开设有泄压槽72，泄压槽72从第一台阶孔73延伸至凸台8的边缘，即在凸台8的边缘处形成侧面开口。泄压槽72在凸台8的表面上延伸分布，增大了泄压通道7的长度，提高了泄压通道7的阻尼效果。并且，泄压槽72还可以开设在凸台8的侧面上，并且延伸到边缘，在相邻的侧面形成开口。
参照图5，本实施例示出了一种圆形的第一台阶孔73，第一台阶孔的直径大于贯通孔的直径。当然，第一台阶孔73还可以采取横截面是椭圆或多边形的孔。
本发明的扬声器模组，该泄压通道7是声学密封的，对于本领域的技术人员来说，声学密封的含义为在声学上处于声密封的状态，也就是说，不允许声波穿过。该泄压通道7为声学密封的，也就是说，位于前声腔5中的声音不会穿过该泄压通道7进入后声腔6中，从而可以保证前声腔5与后声腔6的隔绝，以防止扬声器发生失效。本实施例的扬声器模组由于具有第一台阶孔73，在对扬声器模组的前声腔5进行气密性测试时，采用临时测试工装13将贯通孔71盖住，该临时测试工装13可以是与第一台阶孔73的横截面形状及大小相同的柱状体，也可以是比第一台阶孔73的横截面小的柱状体，只要其横截面大于贯通孔71的横截面，能够将贯通孔盖住即可。如果第一台阶孔73与贯通孔的边界面是倾斜的，那么该临时测试工装13也可以具有同样的倾斜表面。该临时测试工装13将贯通孔71盖住后，前声腔与后声腔完全阻隔，不用再将泄压槽盖住即可实现完全密封泄压通道7。本实施例的扬声器模组易于对前声腔实现临时密封，方便了前声腔5的气密性测试，使通过气压测试的方法来对防水扬声器模组的前声腔进行防水测试易于实现，提高了测试效率。
可通过本领域技术人员所熟知的手段来实现该泄压通道7的声学密封，例如将该泄压通道7做的很小，或者通过其它公知的手段，提高该泄压通道7的阻尼，使其成为阻尼结构，从而可以防止声音在该泄压通道7内传播。
参照图8，在一个可选实施例中，在隔板21远离泄压槽72的表面上，即隔板21靠近前声腔5的表面上设有覆盖贯通孔71的阻尼件。隔板21上位于贯通孔71的位置设有用于容纳阻尼件的阻尼件槽74。在所述阻尼件槽74内设有能够完全遮挡所述贯通孔71的阻尼件9。
在一个可选实施例中，阻尼件为透气不透水的防水膜9。
在一个可选实施例中，在所述阻尼件槽74内，沿从后声腔向前声腔的方向依次放置双面胶10、防水膜9、双面胶10和支撑板11，即通过双面胶将防水膜固定在阻尼件槽74内，支撑板对应贯通孔71处镂空。
在一个可选实施例中，所述阻尼件槽74通过与贯通孔71同心的第二台阶孔75与所述贯通孔71连通。第二台阶孔75内并不放置阻尼件，阻尼件放置在阻尼件槽74内，第二台阶孔75能够保持阻尼件的透气性，并且便于将阻尼件粘贴在阻尼件槽74内。
在一个可选实施例中，凸台8的表面上设有盖板12，盖板12可以是一弹垫，与隔板21固定在一起，将贯通孔71、第一台阶孔73以及全部或部分泄压槽72覆盖住，从而使贯通孔71、第一台阶孔73、泄压槽72以及盖板12围成上述的泄压通道7。由于泄压槽一直延伸到凸台边缘，即使盖板12完全将凸台上表面覆盖，就是说，虽然将凸台上的泄压槽72都遮盖了，但不会遮挡泄压槽在凸台边缘处的开口。其操作方便，不会有操作失误完全遮挡泄压槽的风险。对于泄压槽在凸台的侧面的形式，则盖板相应的为弯折状形式，其能够同时遮盖贯通孔71和侧面的泄压槽，而不会由于操作失误将另一侧的泄压槽的开口遮盖住。泄压槽72在凸台8的表面上延伸分布，从而增大了泄压通道7的长度，提高了泄压通道7的阻尼效果。
在一个可选实施例中，泄压槽72呈直线状，当然，还可以呈弯曲状，其中，弯曲状的泄压槽72相对延长的泄压通道7的长度较大，阻尼效果更好
在一个可选实施例中，所述凸台8靠向后声腔一侧的表面为平面、斜面或弧面，并且所述盖板具有与所述凸台的靠向后声腔一侧的表面相配合的遮盖面，例如，凸台8的靠向后声腔一侧的表面为平面，则盖板12也具有与该平面配合的遮盖面，能够将贯通孔71和泄压槽74遮盖住。
在一个可选实施例中，泄压槽可以开设在凸台8的侧面，也是从第一台阶孔73延伸到凸台的边缘，对于这种形式，盖板12可以是弯折的弹垫，既能够把凸台上表面的贯通孔71遮盖，又能够遮盖侧面的全部或部分泄压槽，但不会遮挡住泄压槽在凸台边缘处的开口。
参照图7，本发明的扬声器模组，在对扬声器模组的前声腔5进行气密性测试时，通过临时测试工装13从凸台8上将第一台阶孔73盖住，不用再将泄压槽盖住即可实现泄压通道的密封，易于对前声腔实现临时密封，方便了前声腔5的气密性测试，使通过气压测试的方法来对防水扬声器模组的前声腔进行防水测试易于实现，提高了测试效率。
以上是以凸台设置在隔板靠向后声腔一侧、阻尼件设置在隔板靠向前声腔一侧为例进行的说明，但本发明并不限于此，也可以是凸台设置在隔板靠向前声腔一侧、阻尼件设置在隔板靠向后声腔一侧。
本发明的扬声器模组，在凸台的表面上正对贯通孔处开设有第一台阶孔，凸台表面上的泄压槽从第一台阶孔一直延伸到凸台边缘。此种结构的扬声器模组，在对扬声器模组的前声腔进行气密性测试时，通过测试工装从凸台上将贯通孔盖住，不用再将泄压槽盖住即可实现泄压通道的密封，易于使泄压通道实现临时密封，方便了前声腔的气密性测试，使通过气压测试的方法来对防水扬声器模组的前声腔进行防水测试易于实现，提高了测试效率。测试完成后，用盖板将凸台覆盖，由于泄压槽在凸台侧面还形成有开口，因此盖板即使将凸台上表面的泄压槽全部遮挡，也能保证泄压通道的通畅。
以上所述为本发明最佳实施方式的举例，其中未详细述及的部分均为本领域普通技术人员的公知常识。本发明的保护范围以权利要求的内容为准，任何基于本发明的技术启示而进行的等效变换，也在本发明的保护范围之内。

Claims (10)

  1. 一种扬声器模组，其特征在于，包括：
    模组外壳，所述模组外壳包围模组内腔，且模组外壳向模组内腔延伸出隔板；
    扬声器单体，所述扬声器单体通过隔板安装在模组内腔中，且所述扬声器单体与隔板将所述模组内腔分隔为前声腔和后声腔，
    其中，在隔板上具有凸台，在所述凸台上具有连通前声腔与后声腔的贯通孔，以及由所述贯通孔向后声腔或前声腔延伸形成的第一台阶孔，在所述第一台阶孔与贯通孔的边界面上，所述第一台阶孔的截面轮廓包围所述贯通孔的截面轮廓，
    在所述凸台的上表面或侧面还开设有泄压槽，所述泄压槽从所述第一台阶孔延伸至凸台的边缘。
  2. 根据权利要求1所述的扬声器模组，其特征在于：所述第一台阶孔为横截面是圆形、椭圆形或多边形的孔。
  3. 根据权利要求1所述的扬声器模组，其特征在于：所述隔板靠向所述前声腔的一侧设有覆盖所述贯通孔的阻尼件，所述凸台设置在所述隔板靠向后声腔的一侧表面上。
  4. 根据权利要求3所述的扬声器模组，其特征在于：所述阻尼件为透气不透水的防水膜。
  5. 根据权利要求4所述的扬声器模组，其特征在于：在所述隔板靠向前声腔的一侧表面上设置有阻尼件槽，在所述阻尼件槽内，沿从后声腔向前声腔的方向依次放置双面胶、防水膜、双面胶和支撑板，且支撑板对应贯通孔处镂空。
  6. 根据权利要求4所述的扬声器模组，其特征在于：所述阻尼件槽通过第二台阶孔与所述贯通孔连通，在所述第二台阶孔与贯通孔的边界面上，所述第二台阶孔的截面轮廓包围所述贯通孔的截面轮廓。
  7. 根据权利要求5所述的扬声器模组，其特征在于：所述凸台的表面上设有盖板，所述盖板覆盖所述贯通孔以及部分或全部的所述泄压槽。
  8. 根据权利要求7所述的扬声器模组，其特征在于：所述凸台靠向后声腔一侧的表面为平面、斜面或弧面，并且所述盖板具有与所述凸台的靠向后声腔一侧的表面相配合的遮盖面。
  9. 根据权利要求1所述的扬声器模组，其特征在于：所述泄压槽呈直线状或者弯曲状。
  10. 根据权利要求9所述的扬声器模组，其特征在于：所述模组外壳包括扣合在一起的上壳、中壳和下壳，所述隔板设置在所述中壳上。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109068230A (zh) * 2018-08-10 2018-12-21 瑞声科技（南京）有限公司 扬声器箱

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106454663B (zh) * 2016-11-30 2022-02-18 歌尔股份有限公司 一种扬声器模组
CN108391188B (zh) 2018-02-11 2020-02-21 维沃移动通信有限公司 一种扬声器组件及电子设备
CN111901739B (zh) * 2020-09-30 2021-01-22 歌尔股份有限公司 发声模组、测试方法和电子设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202759569U (zh) * 2012-08-09 2013-02-27 易力声科技(深圳)有限公司 耳机
CN204305338U (zh) * 2014-12-22 2015-04-29 东莞志丰电子有限公司 一种防水装置及其发声器件
US20150163572A1 (en) * 2013-12-05 2015-06-11 Apple Inc. Pressure Vent for Speaker or Microphone Modules
CN204906708U (zh) * 2015-09-09 2015-12-23 歌尔声学股份有限公司 一种扬声器模组
CN105516870A (zh) * 2016-02-29 2016-04-20 歌尔声学股份有限公司 扬声器模组
US9408009B1 (en) * 2015-10-30 2016-08-02 Pebble Technology, Corp. Combined microphone seal and air pressure relief valve that maintains a water tight seal
CN106454663A (zh) * 2016-11-30 2017-02-22 歌尔股份有限公司 一种扬声器模组
CN206272839U (zh) * 2016-11-30 2017-06-20 歌尔股份有限公司 一种扬声器模组

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6299216B1 (en) * 1996-07-03 2001-10-09 Codelast Limited Joints
JP4766980B2 (ja) * 2005-10-11 2011-09-07 パイオニア株式会社 スピーカー装置
CN102607776B (zh) * 2012-03-12 2014-09-10 陈东明 一种便于密封测试的防水壳体及该壳体的密封测试方法
KR101439916B1 (ko) * 2013-09-23 2014-09-15 주식회사 이엠텍 인클로져 스피커 모듈
CN105792079A (zh) * 2016-03-28 2016-07-20 歌尔声学股份有限公司 一种扬声器模组、扬声器系统和调节振膜平衡的方法
CN105704635B (zh) * 2016-03-31 2019-11-15 歌尔股份有限公司 麦克风振动测试治具

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202759569U (zh) * 2012-08-09 2013-02-27 易力声科技(深圳)有限公司 耳机
US20150163572A1 (en) * 2013-12-05 2015-06-11 Apple Inc. Pressure Vent for Speaker or Microphone Modules
CN204305338U (zh) * 2014-12-22 2015-04-29 东莞志丰电子有限公司 一种防水装置及其发声器件
CN204906708U (zh) * 2015-09-09 2015-12-23 歌尔声学股份有限公司 一种扬声器模组
US9408009B1 (en) * 2015-10-30 2016-08-02 Pebble Technology, Corp. Combined microphone seal and air pressure relief valve that maintains a water tight seal
CN105516870A (zh) * 2016-02-29 2016-04-20 歌尔声学股份有限公司 扬声器模组
CN106454663A (zh) * 2016-11-30 2017-02-22 歌尔股份有限公司 一种扬声器模组
CN206272839U (zh) * 2016-11-30 2017-06-20 歌尔股份有限公司 一种扬声器模组

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109068230A (zh) * 2018-08-10 2018-12-21 瑞声科技（南京）有限公司 扬声器箱

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