WO2020077776A1 - 发声器模组 - Google Patents

发声器模组 Download PDF

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Publication number
WO2020077776A1
WO2020077776A1 PCT/CN2018/120564 CN2018120564W WO2020077776A1 WO 2020077776 A1 WO2020077776 A1 WO 2020077776A1 CN 2018120564 W CN2018120564 W CN 2018120564W WO 2020077776 A1 WO2020077776 A1 WO 2020077776A1
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WO
WIPO (PCT)
Prior art keywords
cavity
sound
module according
isolation member
upper shell
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PCT/CN2018/120564
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English (en)
French (fr)
Inventor
郝正恩
张军
周树芝
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歌尔股份有限公司
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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2020077776A1 publication Critical patent/WO2020077776A1/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
    • 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; 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
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the invention relates to the technical field of acoustic-electric conversion. More specifically, it relates to a sound generator module.
  • the sound generator module is used to complete the conversion between electrical signals and acoustic signals, and is an energy conversion device.
  • the sound generator module includes an outer shell, and a sound generator monomer is contained in the outer shell.
  • the sound generator monomer includes a vibration system and a magnetic circuit system.
  • the sound generator monomer separates the entire cavity of the module into a front sound cavity and a rear sound cavity.
  • the technician In order to reduce the resonance frequency (F0) of the sound generator module, expand the bandwidth, and improve the low-frequency performance of the sound generator module, the technician usually sets a sound absorbing component including a sound absorbing material in the rear sound cavity.
  • F0 resonance frequency
  • granular sound-absorbing materials are applied to the sound generator module. Filling sound-absorbing particles will set up a filling area in the rear sound cavity.
  • the filling area isolates the sound generator monomer and the filling by, for example, filling mesh Filling area to prevent sound-absorbing particles from entering the sound generator during filling or use.
  • sound-absorbing particles tend to accumulate in the end area of the filling area.
  • the accumulated sound-absorbing particles can cause poor airflow, which not only does not produce sound-absorbing effects, but also reduces the volume of the rear acoustic cavity due to the accumulation.
  • the opposite effect ie F0 increases).
  • the present invention provides a sounder module, including a housing, the sounder unit is contained in the housing, the sounder unit includes a vibration system and a magnetic circuit system, the sounder unit will the entire mold
  • the inner cavity of the group is divided into a front acoustic cavity and a rear acoustic cavity.
  • the rear acoustic cavity includes a sound absorbing area for filling sound absorbing particles, and a first isolation member is provided between the sound absorbing area and the sound generator monomer.
  • a second isolation component is provided in the sound absorption area, the second isolation component divides the sound absorption area into a first cavity and a second cavity with air circulation, and the sound absorption particles are accommodated in the first cavity in vivo.
  • the first isolation member and / or the second isolation member are mesh fabrics.
  • the first cavity includes opposite first and second ends, the first isolation member is disposed adjacent to the first end, and the second cavity includes at least adjacent to the second end part.
  • a recess is provided on the housing at a position corresponding to the sound absorption area, and the second isolation member covers the recess and is fixed on the housing to form the second cavity.
  • the outer shell includes an upper shell and an upper cover surrounding the sound absorption area, an opening is formed on a top surface of the upper shell, the upper cover covers the opening and is combined on an inner side wall of the upper shell,
  • the second isolation member is a mesh cloth, and the mesh cloth is combined with the inner wall of the upper cover and forms a second cavity with the upper cover.
  • the outer shell includes an upper shell and a first steel sheet surrounding the sound absorption area, a top surface of the upper shell has a hollow, and the first steel sheet covers the hollow of the upper shell and is connected with the hollow The edge of the combination is fixed;
  • a second cavity is formed between the second isolation member and the first steel sheet.
  • the second isolation member is a mesh cloth, and the mesh cloth is bonded to the inner wall of the first steel sheet by pasting; or,
  • the mesh cloth is bonded to the inner wall of the upper shell on the peripheral side of the first steel sheet by means of bonding, injection molding or hot melting.
  • the upper shell includes a second steel sheet separating the front acoustic cavity and the rear acoustic cavity.
  • the sound generator unit is provided with a rear sound hole communicating with the rear sound cavity, and the first isolation member covers the rear sound hole.
  • the sound generator unit is located below the first cavity, and the second cavity is located above the first cavity.
  • the sound generator module provided by the invention is provided with an isolation component in the area where the sound-absorbing particles are filled in the rear sound cavity, so that the filling area forms two cavities that can communicate with each other, and one of the cavities is provided with sound-absorbing particles. Even if the sound-absorbing particles in the cavity are piled up, the air circulation is still smooth due to the presence of another cavity, the contact area of the sound-absorbing particles and the air is increased, and the problem of poor airflow due to the accumulation of some sound-absorbing particles is avoided. Therefore, the sound absorbing effect can be exerted, and the problem of F0 difference caused by uneven distribution of sound absorbing particles due to accumulation of sound absorbing particles can be prevented.
  • FIG. 1 shows an exploded schematic view of the sound generator module in the embodiment of the present invention.
  • FIG. 2 shows a schematic cross-sectional view from the right in FIG. 1.
  • the invention provides a sound generator module, which includes an outer shell, and a single sound generator is contained in the outer shell.
  • the single sound generator includes a vibration system and a magnetic circuit system. It is divided into a front sound cavity and a rear sound cavity.
  • the rear sound cavity includes a sound absorbing area for filling sound absorbing particles.
  • a first isolation member is provided between the sound absorbing area and the sound generator unit, and a sound absorbing area is provided in the sound absorbing area.
  • a second isolation component that divides the sound absorption area into a first cavity and a second cavity with air circulation, and the sound absorption particles are accommodated in the first cavity.
  • the sound generator module provided by the invention is provided with an isolation component in the area where the sound-absorbing particles are filled in the rear sound cavity, so that the filling area forms two cavities that can communicate with each other, and one of the cavities is provided with sound-absorbing particles. Even if the sound-absorbing particles in the cavity are piled up, the air circulation is still smooth due to the presence of another cavity, the contact area of the sound-absorbing particles and the air is increased, and the problem of poor airflow due to the accumulation of some sound-absorbing particles is avoided. Therefore, the sound absorbing effect can be exerted, and the problem of F0 difference caused by uneven distribution of sound absorbing particles due to accumulation of sound absorbing particles can be prevented.
  • the first cavity includes opposite first and second ends, the first isolation member is disposed adjacent to the first end, and the second cavity includes at least adjacent to the second end part.
  • the first isolation member has a breathable effect, even if the sound absorbing particles near it are stacked to cause uneven density, the first isolation member is equivalent to providing an air circulation area, which increases the contact area between the sound absorbing particles near the first isolation member and the air Therefore, the second cavity includes a portion adjacent to the second end, which avoids the effect of the accumulation of sound absorbing particles near the second end.
  • a recessed portion is provided on the housing corresponding to a position of the sound absorption area, and the second isolation member covers the recessed portion and is fixed on the housing to form the second cavity.
  • the second cavity can be arbitrarily designed under the premise of conforming to the actual process, as long as it has a portion adjacent to the second end, and this portion can be enclosed by the side wall of the housing and the second isolation member, or by The top wall of the housing or the bottom wall of the housing is enclosed with the second isolation member, and may even be formed by the above combination.
  • FIG. 1 is an exploded schematic view of the sound generator module in the embodiment of the present invention
  • FIG. 2 shows a schematic cross-sectional view from the right in FIG. 1.
  • the housing of the sound generator module includes a first steel sheet 11, an upper shell 12 and a lower shell 13, the top surface of the upper shell 12 has a hollow, the first steel sheet 11 Cover the hollow of the upper shell 12 and fix it in combination with the hollow edge; a second cavity 72 is formed between the second isolation member 32 and the first steel sheet 11.
  • the first steel sheet 11 is provided with a filling hole 21 for filling sound-absorbing particles and a sealing cover 22 for sealing the filling hole 22.
  • the sounder monomer 4 divides the entire module into a front sound cavity 80 and a rear sound cavity.
  • the magnetic circuit system of the sounder monomer 4 is located in the rear sound cavity.
  • the sound absorption area 70 is isolated from the space where the magnetic circuit system in the sound generator unit 4 is located by the first isolation member 31, but air circulation is possible. That is, the rear acoustic cavity includes the space where the magnetic circuit system is located and the aforementioned sound absorption area 70.
  • the sound absorbing area 70 includes a first cavity 71 and a second cavity 72, and the first cavity 71 and the second cavity 72 are separated by a second isolation member 32 in a flat plate shape.
  • the second partition member 32 forms an arc-shaped notch that avoids the filling hole 21.
  • the sound-absorbing particles are filled into the first cavity through the filling hole 21, and the sound-absorbing particles in the first cavity are generally filled, which increases the utilization rate of the first cavity.
  • the sound generator unit is provided with a rear sound hole communicating with the rear sound cavity, the first isolation member covers the rear sound hole, and the first cavity is filled with sound absorbing particles so that the space of the rear sound cavity is maximized , To achieve "full filling" in the process.
  • the filling or filling mentioned above means the filling limit or filling limit in the process.
  • the filling process is used for filling, and the filling volume of the sound-absorbing particles is generally more than 80%.
  • a maximum filling volume is generally set in the process (the maximum filling volume is generally not Reached 100%), the maximum filling volume in this process is the filling in this embodiment.
  • the advantage of this arrangement is that the filling space of sound-absorbing particles is increased, so that under the same number of sound-absorbing particles, the volume of the rear acoustic cavity can be reduced while ensuring a better bass effect.
  • the sound-absorbing particles can also be completely filled, that is, the filling volume of the first cavity is 100%.
  • the positional relationship between the first cavity and the second cavity can be seen.
  • the sound generator unit 4 is located below the first cavity 71
  • the second cavity 72 is located on the first cavity 71.
  • the part of the second cavity 72 near the left side in the figure is the part of the second cavity 72 disposed adjacent to the second end, which will not be repeated in the present invention.
  • the second cavity 72 is located above the first cavity 71.
  • the second cavity may be located below the first cavity, on the left side, or any combination of the above. Not exhaustive.
  • the sound generator unit may be located on the sides of the first cavity and the second cavity, and the present invention is not limited thereto.
  • the first isolation component and the second isolation component may be a mesh fabric, etc.
  • the first isolation component may be the same or different, and the invention is not limited thereto.
  • the second isolation member is a mesh cloth, which can be bonded to the inner wall of the first steel sheet by pasting, or can be bonded to the peripheral side of the first steel sheet by bonding, injection molding, or hot-melt. On the inner wall of the upper shell.
  • the first isolation component can be fixed to the upper shell of the module by injection molding, hot melt, adhesive, etc .; or, in some embodiments not shown, the sound generator unit includes a housing, and the first isolation member It can also be fixed to the shell of the sound generator unit by injection molding, hot melt, adhesive, etc., the present invention does not limit this.
  • the sound absorption area may be formed by the upper cover and the upper shell, the materials of the upper cover and the upper shell are both plastic, so that the mesh cloth may be bonded to the inner wall of the upper cover or the upper shell by hot melting Of the side wall.
  • an opening is formed on the top surface of the upper case, the upper cover covers the opening and is combined on the inner side wall of the upper case, and the second isolation member is a mesh cloth , The mesh cloth is combined on the inner wall of the upper cover with the upper cover by hot melting to form a second cavity.
  • the upper cover may be installed afterwards, or may be manufactured together with the upper shell.
  • the second isolation member may be first manufactured on the upper cover, and then fixed to the upper shell by assembly or other methods.
  • the upper shell further includes a second steel sheet separating the front acoustic cavity and the rear acoustic cavity.
  • the second isolation member may be combined on the second steel sheet to form a second cavity. Obviously, at this time, the second cavity is located below the first cavity.
  • the edge of the first steel sheet 11 is bent toward the direction of the rear acoustic cavity to form a blank holder, and the border between the blank holder and the second isolation member 32 forms a joint, so that the second isolation member 32 passes the joint
  • the part and the first steel sheet form a second cavity.
  • the edge of the first steel sheet protrudes in the direction of the rear acoustic cavity to form a boss, and the edge of the boss and the second isolation member forms a joint.
  • the sound generator module shown in FIG. 2 is a module with a side sound outlet structure, but the present invention does not limit the position of the sound outlet, and the sound outlet can be set according to specific needs.
  • the present embodiment also includes an FPCB board 5 having a circuit thereon, thereby controlling the energization of the voice coil.
  • the sound vent 61 in the figure is used to adjust the sound pressure of the rear sound cavity to prevent the vibration of the diaphragm from being affected.
  • the sound vent 61 is sealed by the damper 62.
  • the present invention avoids the problem of poor airflow caused by the accumulation of some sound absorbing particles by providing a partition member in the area where the sound absorbing particles are filled in the rear acoustic cavity, and can exert a sound absorbing effect.

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

Abstract

本发明提供一种发声器模组，通过在后声腔灌装吸音颗粒的区域设置隔离部件，从而使得灌装区域形成可以相互空气流通的两个腔体，在使用时即使该腔体内的吸音颗粒堆积，由于另一个腔体的存在仍然可以实现空气流通顺畅，提高了吸音颗粒与空气的接触面积，避免了由于部分吸音颗粒的堆积造成的气流不畅的问题，从而能够发挥出吸音效果，并且能够防止因为吸音颗粒堆积造成的吸音颗粒分布不均匀带来的F0差异的问题。

Description

发声器模组 技术领域
本发明涉及声电转换技术领域。更具体地，涉及一种发声器模组。
背景技术
随着科学技术飞速发展，消费者对电子产品的要求越来越高，基于消费者对于电子产品的要求，手机等电子产品的设计趋于轻薄化。发声器模组作为便携式电子设备的重要声学部件，用于完成电信号与声信号之间的转换，是一种能量转换器件。
发声器模组包括外壳，外壳内收容有发声器单体，发声器单体包括振动***和磁路***，发声器单体将整个模组内腔分隔为前声腔和后声腔。为了降低发声器模组的共振频率(F0)，扩展带宽，改善发声器模组的低频性能，技术人员通常在后声腔中设置包括有吸音材料的吸音组件。随着科技发展，颗粒状吸音材料被应用到发声器模组中，灌装吸音颗粒会在后声腔中设置一个灌装区，灌装区通过例如灌装网布等隔离发声器单体和灌装区，以防止灌装或使用时吸音颗粒进入发声器单体。但是在使用时，往往会出现吸音颗粒在灌装区的端部区域堆积，堆积的吸音颗粒能够导致气流不畅，不仅发挥不出吸音效果，还会因为堆积造成后声腔体积减小，起到相反作用(即F0升高)。
发明内容
为了解决目前发声器模组在使用时，往往会出现吸音颗粒堆积，堆积的吸音颗粒能够导致气流不畅，不仅发挥不出吸音效果，还会因为堆积造成后声腔体积减小，起到相反作用的问题，本发明提供一种发声器模组，包括外壳，所述外壳内收容有发声器单体，所述发声器单体包括振动***和磁路***，所述发声器单体将整个模组内腔分隔为前声腔和后声腔，所述后声腔包括有用于灌装吸音颗粒的吸音区，所述吸音区和所述发声器单体之间设有第一隔离部件，
所述吸音区中设有第二隔离部件，所述第二隔离部件将所述吸音区分隔为空气流通的第一腔体和第二腔体，所述吸音颗粒容置于所述第一腔体内。
优选地，所述第一隔离部件和/或所述第二隔离部件为网布。
优选地，所述第一腔体包括相对的第一端和第二端，所述第一隔离部件邻近所述第一端设置，所述第二腔体至少包括有邻近所述第二端设置的部分。
优选地，所述外壳上对应吸音区的位置设置有凹陷部，所述第二隔离部件覆盖所述凹陷部固定在所述外壳上形成所述第二腔体。
优选地，所述外壳包括围成所述吸音区的上壳和上盖，所述上壳的顶面形成开口，所述上盖覆盖所述开口并结合在所述上壳的内侧壁上，所述第二隔离部件为网布，所述网布结合在所述上盖的内壁上与所述上盖形成第二腔体。
优选地，所述外壳包括围成所述吸音区的上壳和第一钢片，所述上壳的顶面具有镂空，所述第一钢片覆盖所述上壳的镂空，并与该镂空的边缘结合固定；
所述第二隔离部件与所述第一钢片之间形成第二腔体。
优选地，所述第二隔离部件为网布，所述网布通过粘贴的方式结合在所述第一钢片内壁；或者，
所述网布通过粘接、注塑或热熔的方式结合在所述第一钢片周侧的所述上壳的内壁上。
优选地，所述上壳包括有分隔所述前声腔和所述后声腔的第二钢片。
优选地，所述发声器单体设有与所述后声腔连通的后声孔，所述第一隔离部件覆盖所述后声孔。
优选地，所述发声器单***于所述第一腔体的下方，所述第二腔***于所述第一腔体上方。
本发明的有益效果如下：
本发明提供的发声器模组，通过在后声腔灌装吸音颗粒的区域设置隔离部件，从而使得灌装区域形成可以相互空气流通的两个腔体，其中一个腔体内设置吸音颗粒，这样在使用时即使该腔体内的吸音颗粒堆积，由于另一个腔体的存在仍然可以实现空气流通顺畅，提高了吸音颗粒与空气的接触面积，避免了由于部分吸音颗粒的堆积造成的气流不畅的问题，从而能够发挥出吸音效果，并且能够防止因为吸音颗粒堆积造成的吸音颗粒分布不均匀带来的F0差异的问题。
附图说明
下面结合附图对本发明的具体实施方式作进一步详细的说明。
图1示出本发明实施例中发声器模组的***示意图。
图2示出图1中的右视截面示意图。
具体实施方式
为了更清楚地说明本发明，下面结合优选实施例和附图对本发明做进一步的说明。附图中相似的部件以相同的附图标记进行表示。本领域技术人员应当理解，下面所具体描述的内容是说明性的而非限制性的，不应以此限制本发明的保护范围。
本发明提供一种发声器模组，包括外壳，所述外壳内收容有发声器单体，所述发声器单体包括振动***和磁路***，所述发声器单体将整个模组内腔分隔为前声腔和后声腔，所述后声腔包括有用于灌装吸音颗粒的吸音区，所述吸音区和所述发声器单体之间设有第一隔离部件，所述吸音区中设有第二隔离部件，所述第二隔离部件将所述吸音区分隔为空气流通的第一腔体和第二腔体，所述吸音颗粒容置于所述第一腔体内。
本发明提供的发声器模组，通过在后声腔灌装吸音颗粒的区域设置隔离部件，从而使得灌装区域形成可以相互空气流通的两个腔体，其中一个腔体内设置吸音颗粒，这样在使用时即使该腔体内的吸音颗粒堆积，由于另一个腔体的存在仍然可以实现空气流通顺畅，提高了吸音颗粒与空气的接触面积，避免了由于部分吸音颗粒的堆积造成的气流不畅的问题，从而能够发挥出吸音效果，并且能够防止因为吸音颗粒堆积造成的吸音颗粒分布不均匀带来的F0差异的问题。
优选的，所述第一腔体包括相对的第一端和第二端，所述第一隔离部件邻近所述第一端设置，所述第二腔体至少包括有邻近所述第二端设置的部分。由于第一隔离部件具有透气作用，因此其附近的吸音颗粒即使堆积造成密度不均匀，第一隔离部件相当于提供了一个空气流通区域，提高了第一隔离部件附近的吸音颗粒与空气的接触面积，因此，第二腔体包括有邻近第二端的部分，这样与避免了吸音颗粒在第二端附近的堆积造成的影响。
所述外壳上对应吸音区的位置设置有凹陷部，所述第二隔离部件覆盖所述凹陷部固定在所述外壳上形成所述第二腔体。可以理解，在符合实际工艺的前提下，第二腔体可以任意设计，其只要满足具有邻近第二端的部分即可，该部分可以由外壳的侧壁与第二隔离部件围成，也可以由外壳的顶壁或者外壳的底壁与第二隔离部件围成，甚至可以由上述的组合形成。
下面结合图1和图2对本发明进行详细说明。
图1本发明实施例中发声器模组的***示意图，图2示出图1中的右视截面示意图。请结合图1和图2所示，发声器模组的外壳包括有第一钢片11、上壳12以及下壳13，所述上壳12的顶面具有镂空，所述第一钢片11覆盖所述上壳12的镂空，并与该镂空的边缘结合固定；所述第二隔离部件32与所述第一钢片11之间形成第二腔体72。第一钢片11上设置有用于灌装吸音颗粒的灌装孔21以及密封该灌装孔22的密封盖22。其中，发声器单体4将整个模组分割为前声腔80和后声腔，发声器单体4的磁路***处于后声腔中，后声腔包括有与发声器单体4隔离的吸音区70，该吸音区70通过第一隔离部件31与发声器单体4中的磁路***所处的空间隔离，但可以进行空气流通。即后声腔包括磁路***所处的空间和上述吸音区70。本实施例中，吸音区70包括第一腔体71和第二腔体72，第一腔体71和第二腔体72通过平板状的第二隔离部件32隔离。图1中，第二隔离部件32形成一个避让灌装孔21的弧形的缺口。吸音颗粒通过灌装孔21灌装进入第一腔体，处于第一腔体内的吸音颗粒一般为灌满的状态，增大第一腔体的利用率。
在一个优选的实施例中，发声器单体设有与后声腔连通的后声孔，第一隔离部件覆盖所述后声孔，第一腔体灌满吸音颗粒这样使得后声腔的空间最大化，实现了工艺上的“全灌装”。
当然，上述所说的灌满或者填满，其含义为工艺上的灌装极限或者填充极限，在实际工艺中，通过灌装工艺进行灌装，吸音颗粒的灌装量一般在80％以上，当达到一定的灌装量时，无法进行进一步的灌装或者继续灌装使得空气流通较差，吸音效果反而变差，因此，工艺上一般会设置一个最大灌装量(最大灌装量一般无法达到100％)，该工艺上的最大灌装量即为本实施例中的灌满。这样设置的优势在于，增大了吸音颗粒的灌装空间，从而在相同数量的吸音颗粒下，能够减小后声腔的体积的同时，保证更好的低音效果。
此外，在某些特殊的需求下，吸音颗粒也可以完全填充，即第一腔体的灌装量为100％。
结合图2可以看出第一腔体和第二腔体的位置关系，本实施例中，发声器单体4位于第一腔体71的下方，第二腔体72位于第一腔体71的上方。其中，第二腔体72靠近图示中的左边的部分为上述第二腔体72邻近第二端设置的部分，本发明不予赘述。
本实施例中第二腔体72位于第一腔体71的上方，在其他可实现的实施例中，第二腔体可以位于第一腔体的下方，左侧或者上述的随意组合，本发明 不予穷举。
此外，发声器单体可以位于第一腔体和第二腔体的侧面，本发明不限于此。
第一隔离部件和第二隔离部件可以为网布等，第一隔离部件可以相同也可以不同，本发明不做限制。本实施例中，第二隔离部件为网布，网布可以通过粘贴的方式结合在第一钢片的内壁上，也可以通过粘接、注塑或热熔的方式结合在第一钢片周侧的上壳的内壁上。
进一步的，第一隔离部件可以通过注塑、热熔、胶粘等方式与模组上壳结合固定；或者，在一些未示出的实施例中，发声器单体包括壳体，第一隔离件也可以通过注塑、热熔、胶粘等方式与发声器单体的壳体结合固定，本实用新型对此均不做限制。
在一些未示出的实施例中，吸音区可以由上盖和上壳形成，上盖和上壳的材料均为塑料，这样网布可以通过热熔的方式结合在上盖的内壁或者上壳的侧壁。
进一步的，在可选的实施例中，所述上壳的顶面形成开口，所述上盖覆盖所述开口并结合在所述上壳的内侧壁上，所述第二隔离部件为网布，所述网布通过热熔的方式结合在所述上盖的内壁上与所述上盖形成第二腔体。
上盖可以是后装的，也可以是与上壳一起制作出的，在制作时，可以先将第二隔离部件制作在上盖上，再通过组装等方式与上壳结合固定。
在图中未示出的实施例中，上壳还包括有分隔所述前声腔和所述后声腔的第二钢片。该实施例中，第二隔离部件可以结合在该第二钢片上形成第二腔体，显然，此时第二腔***于第一腔体的下方。
在图2中的实施例中，第一钢片11的边缘朝向后声腔的方向弯折形成压边，压边和第二隔离部件32的边缘形成结合部，从而第二隔离部件32通过该结合部与第一钢片围成第二腔体。
当然，在其他实施例中，第一钢片的边缘向后声腔的方向凸起形成凸台，该凸台和第二隔离部件的边缘形成结合部。
进一步的，图2中示出的发声器模组为侧出声口结构的模组，但本发明不对出声口的位置进行限定，出声口可以根据具体需要设置。
此外，本实施例中还包括由FPCB板5，其上具有电路，从而控制音圈通电。
图示中的泄声孔61用于调节后声腔的声压，防止振膜振动受到影响，泄 声孔61通过阻尼62密封。
通过上述详细说明，可以显然知晓，本发明通过在后声腔灌装吸音颗粒的区域设置隔离部件，避免了由于部分吸音颗粒的堆积造成的气流不畅的问题，从而能够发挥出吸音效果。
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定，对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动，这里无法对所有的实施方式予以穷举，凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。

Claims (10)

  1. 一种发声器模组，包括外壳，所述外壳内收容有发声器单体，所述发声器单体包括振动***和磁路***，所述发声器单体将整个模组内腔分隔为前声腔和后声腔，所述后声腔包括有用于灌装吸音颗粒的吸音区，所述吸音区和所述发声器单体之间设有第一隔离部件，其特征在于，
    所述吸音区中设有第二隔离部件，所述第二隔离部件将所述吸音区分隔为空气流通的第一腔体和第二腔体，所述吸音颗粒容置于所述第一腔体内。
  2. 根据权利要求1所述的模组，其特征在于，所述第一隔离部件和/或所述第二隔离部件为网布。
  3. 根据权利要求1所述的模组，其特征在于，所述第一腔体包括相对的第一端和第二端，所述第一隔离部件邻近所述第一端设置，所述第二腔体至少包括有邻近所述第二端设置的部分。
  4. 根据权利要求1所述的模组，其特征在于，所述外壳上对应吸音区的位置设置有凹陷部，所述第二隔离部件覆盖所述凹陷部固定在所述外壳上形成所述第二腔体。
  5. 根据权利要求1所述的模组，其特征在于，所述外壳包括围成所述吸音区的上壳和上盖，所述上壳的顶面形成开口，所述上盖覆盖所述开口并结合在所述上壳的内侧壁上，所述第二隔离部件为网布，所述网布结合在所述上盖的内壁上与所述上盖形成第二腔体。
  6. 根据权利要求1所述的模组，其特征在于，所述外壳包括围成所述吸音区的上壳和第一钢片，所述上壳的顶面具有镂空，所述第一钢片覆盖所述上壳的镂空，并与该镂空的边缘结合固定；
    所述第二隔离部件与所述第一钢片之间形成第二腔体。
  7. 根据权利要求6所述的模组，其特征在于，所述第二隔离部件为网布，所述网布通过粘贴的方式结合在所述第一钢片内壁；或者，
    所述网布通过粘接、注塑或热熔的方式结合在所述第一钢片周侧的所述上壳的内壁上。
  8. 根据权利要求6所述的模组，其特征在于，所述上壳包括有分隔所述前声腔和所述后声腔的第二钢片。
  9. 根据权利要求1所述的模组，其特征在于，所述发声器单体设有与所述后声腔连通的后声孔，所述第一隔离部件覆盖所述后声孔。
  10. 根据权利要求1所述的模组，其特征在于，所述发声器单***于所 述第一腔体的下方，所述第二腔***于所述第一腔体上方。
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