WO2021000166A1 - 扬声器模组 - Google Patents

扬声器模组 Download PDF

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Publication number
WO2021000166A1
WO2021000166A1 PCT/CN2019/094066 CN2019094066W WO2021000166A1 WO 2021000166 A1 WO2021000166 A1 WO 2021000166A1 CN 2019094066 W CN2019094066 W CN 2019094066W WO 2021000166 A1 WO2021000166 A1 WO 2021000166A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover plate
upper cover
sound
bottom wall
lower cover
Prior art date
Application number
PCT/CN2019/094066
Other languages
English (en)
French (fr)
Inventor
陈志臣
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2019/094066 priority Critical patent/WO2021000166A1/zh
Priority to CN201921033542.3U priority patent/CN210641054U/zh
Publication of WO2021000166A1 publication Critical patent/WO2021000166A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to the field of electro-acoustic conversion, in particular to a speaker module.
  • a gas absorbing material also known as a sound absorbing material, such as activated carbon or zeolite
  • a sound absorbing material such as activated carbon or zeolite
  • the gas absorption material in the resonance space of the speaker causes a virtual enlargement of the resonance space (Virtual Enlargement) through gas absorption and release, so that the resonance frequency of the speaker device is reduced to a value that can be achieved with a larger resonance space. It is generally used for Enhance the low frequency effect of the speaker.
  • the purpose of the present invention is to provide a loudspeaker module that can encapsulate more sound-absorbing materials to fully exert the performance of the sound-absorbing materials.
  • the speaker module provided by this embodiment includes an upper cover plate having a receiving cavity, a lower cover plate opened opposite to the upper cover plate, and a speaker unit received in the receiving cavity and fixed to the upper cover plate.
  • the upper cover is provided with a bottom wall of the upper cover and a ring-shaped sound-absorbing cotton fixed to the bottom wall of the upper cover in the area where the speaker unit is not placed.
  • the speaker module further includes The air-permeable spacer of ring-shaped sound-absorbing cotton, the bottom wall of the upper cover plate, the ring-shaped sound-absorbing cotton, and the air-permeable spacer are jointly enclosed to form an airflow groove body, and the lower cover plate corresponds to the position of the airflow groove body
  • a bottom wall of the lower cover plate and a baffle extending from the bottom wall of the lower cover plate toward the upper cover plate and abutting against the air-permeable spacer are provided, the baffle, the bottom wall of the lower cover plate and the air-permeable spacer are common
  • a filling cavity for containing sound-absorbing material is formed, and the projection of the baffle along the assembly direction of the upper cover and the lower cover is located within the range of the airflow groove body, so that the airflow groove body and the receiving cavity are located between the airflow groove body and the receiving cavity.
  • Both the air flow groove body and the filling cavity are in air flow communication through a gas-permeable partition.
  • the ring-shaped sound-absorbing cotton is enclosed to form the groove side wall of the airflow groove body, and the air-permeable spacer is completely covered on the surface of the ring-shaped sound-absorbing cotton facing the bottom wall of the lower cover.
  • the groove top wall of the air flow groove body is completely covered on the surface of the ring-shaped sound-absorbing cotton facing the bottom wall of the lower cover.
  • the upper cover plate further includes two sets of oppositely opened long-axis side walls and two sets of short-axis side walls oppositely opened and connected to the two sets of long-axis side walls.
  • the baffle and the lower cover plate It is an integral structure, and the opening direction of the baffle is consistent with the opening direction of the side wall of the short axis, and the two ends of the baffle are respectively against the two groups of the long axis sides of the upper cover plate The inner surface of the wall.
  • both sides of the ring-shaped sound-absorbing cotton are further provided with stop posts that cooperate with the baffle to separate the receiving cavity and the filling cavity, and one end of the stop column is fixed on the outer surface of the ring-shaped sound-absorbing cotton.
  • the other end of the stop post extends to the inner surface of the long axis side wall of the upper cover plate.
  • the speaker module further includes a flexible circuit board FPC board with one end electrically connected to the speaker unit and the other end protruding from the short axis side wall of the upper cover.
  • FPC board flexible circuit board
  • the bottom wall of the lower cover plate is provided with a powder filling hole that is convenient for filling with sound-absorbing material, the powder filling hole is communicated with the filling cavity, and the speaker module further includes being fixed on the powder filling hole. Sealed sealing cover sheet.
  • a leak hole communicating with the filling cavity is further provided on the bottom wall of the lower cover plate, and the hole diameter of the leak hole is smaller than the hole diameter of the powder filling hole.
  • the speaker module of the present invention puts the sound-absorbing material on the lower cover instead of sharing the space for placing the speaker unit, and can obtain a larger filling cavity to accommodate more sound-absorbing materials.
  • the airflow in the receiving cavity needs to pass through the air-permeable partition and the airflow trough before entering the sound-absorbing material area, which increases the airflow path, improves the airflow compliance, and further improves the sound effect.
  • the size of the filling cavity is not affected by the size of the air-permeable partition, and is determined by the relative position of the baffle and the accommodation space of the upper cover. Compared with the size of the air-permeable partition in the prior art, the filling area of the sound-absorbing material is determined by the utility model.
  • the new type of filling cavity has a larger volume and can maximize the filling area of the sound-absorbing material.
  • the arrangement of the air flow groove body enlarges the contact area between the sound-absorbing material and the sound wave emitted by the speaker unit, and can better exert the function of the sound-absorbing material.
  • the utility model adopts the ring-shaped sound-absorbing cotton as the supporting structure. Under the premise of meeting the hardness requirement, the cost of consumables is low, the processing is easy, and the permeability is good. It cooperates with the air-permeable spacer, and the airflow channel is more smooth, which is beneficial to the airflow transmission.
  • Figure 1 is a schematic structural diagram of a speaker module in an embodiment of the utility model
  • FIG. 2 is a schematic diagram of a three-dimensional exploded structure of the speaker module in the embodiment of the utility model
  • Figure 3 is a schematic diagram of a partial structure of a speaker module in an embodiment of the utility model
  • Figure 4 is a schematic diagram of the structure of the upper cover in the embodiment of the utility model
  • Figure 5 is a schematic diagram of the structure of the lower cover in the embodiment of the utility model
  • Figure 6 is a cross-sectional view of the speaker module in the embodiment of the utility model along the direction A-A in Figure 1;
  • FIG. 7 is a partial enlarged view of the components in the area B along the circle B in FIG. 6 of the speaker module in the embodiment of the present invention.
  • This utility model discloses a speaker module, which includes an upper cover 1 with a receiving cavity 12, a lower cover 2 opened opposite to the upper cover 1, and a The speaker unit 3 is fixed to the upper cover 1.
  • the upper cover 1 is provided with an upper cover bottom wall 17 and a ring-shaped sound-absorbing cotton 11 fixed to the upper cover bottom wall 17 in the area where the speaker unit 3 is not placed.
  • the speaker module 3 also includes a breathable spacer 5 fixed to the ring-shaped sound-absorbing cotton 11.
  • the bottom wall 17, the ring-shaped sound-absorbing cotton 11, and the breathable spacer 5 collectively enclose an airflow groove 111, and the lower cover 2 corresponds to
  • the position of the airflow trough 111 is provided with a lower cover bottom wall 22 and a baffle 21 extending from the lower cover bottom wall 22 toward the upper cover 1 and abutting the breathable partition 5, the baffle 21, the lower cover bottom wall 22 And the air-permeable spacer 5 together constitute a filling cavity 13 containing sound-absorbing materials, and the projection of the baffle 21 along the assembly direction of the upper cover plate 1 and the lower cover plate 2 is located within the range of the airflow groove body 111 so that the airflow groove body 111 and the receiving cavity 12 Both the airflow groove body 111 and the filling cavity 13 are in airflow communication through the air-permeable partition 5.
  • the breathable spacer 5 is a component that can breathe and play a role in isolation, specifically, it can be a dust-proof mesh, which is a dustproof and acoustic auxiliary used in mobile phones, speakers and other electronic components
  • the material is woven by high-precision looms using polyester and polyester as raw materials. It has the characteristics of variable density, light weight, rigidity, compliance and acoustic resistance.
  • the specific woven material can be one or more of polyethylene terephthalate PET and polyether ether ketone PEEK.
  • the sound-absorbing material 4 is placed on the lower cover 2 instead of sharing the space where the speaker unit 3 is placed, and a larger filling cavity 13 can be obtained to accommodate more sound-absorbing materials 4.
  • the air flow in the accommodating cavity 12 needs to pass through the air-permeable partition 5 and the air flow trough 111 before entering the area of the sound absorbing material 4, which increases the air flow path, improves the air flow compliance, and further improves the sound effect.
  • the size of the filling cavity 13 is not affected by the size of the air-permeable spacer 5, and is determined by the relative position of the baffle 21 and the accommodation space of the upper cover plate 1.
  • the size of the sound-absorbing material 4 is determined For the filling area, the volume of the filling cavity 13 of the present invention is larger, and the filling area of the sound-absorbing material 4 can be enlarged as much as possible.
  • the arrangement of the air flow groove 111 enlarges the contact area between the sound-absorbing material 4 and the sound waves emitted by the speaker unit 3, and can better perform the function of the sound-absorbing material 4. Therefore, the present invention can be filled with more sound-absorbing materials 4, and the performance of the sound-absorbing materials 4 can also be better utilized.
  • the ring-shaped sound-absorbing cotton 11 is fixed to the upper cover 1 by double-sided tape, which is easy to process and shape.
  • the ring-shaped sound-absorbing cotton 11 encloses the groove side wall 112 of the air flow groove body 111, and the air-permeable spacer 5 is completely covered on the surface of the ring-shaped sound-absorbing cotton 11 facing the bottom wall 22 of the lower cover.
  • the groove top wall 113 of the air flow groove body 111 is formed.
  • One end of the air-permeable spacer 5 in the filling cavity needs to be completely physically separated from the ring-shaped sound-absorbing cotton 11 to prevent the sound-absorbing material from leaking into the airflow trough 111.
  • the other end of the air-permeable spacer 5 separated by the baffle 21 is also covered
  • the ring-shaped sound-absorbing cotton 11 has a supporting effect.
  • an opening may also be provided between the other end of the breathable spacer 5 and the ring-shaped sound-absorbing cotton 11, which facilitates the air circulation process in the airflow trough 111 and facilitates The sound is better absorbed by the sound-absorbing material, which improves the sound-absorbing effect of the sound-absorbing material.
  • the upper cover plate 1 includes two sets of oppositely opened long axis side walls 14 and two sets of short axis side walls 15 oppositely opened and connected to the two sets of long axis side walls 14, a baffle 21 and a lower cover plate 2. It is an integral structure, and the opening direction of the baffle 21 is consistent with the opening direction of the short axis side wall 15, and the two ends of the baffle 21 respectively abut against the inner surfaces of the two sets of long axis side walls 14 of the upper cover 1.
  • the baffle 21 and the lower cover 2 are an integral structure, which is easy to process. The two ends of the baffle 21 are respectively against the long axis side walls 14 of the upper cover 1 to achieve a better sealing effect and avoid powder leakage.
  • both sides of the ring-shaped sound-absorbing cotton 11 are also provided with a stop post 16 that cooperates with the baffle 21 to separate the receiving cavity 12 and the filling cavity 13.
  • One end of the stop post 16 is fixed on the outer surface of the ring-shaped sound-absorbing cotton 11.
  • the other end of 16 extends to the inner surface of the long axis side wall 14 of the upper cover plate 1.
  • the height of the stop post 16 is the same as the height of the ring-shaped sound-absorbing cotton 11, and the ring-shaped sound-absorbing cotton 11 is not in contact with the long axis side wall 14 of the upper cover 1.
  • the setting of the stop post can fill the ring-shaped sound-absorbing cotton 11 and the long axis.
  • the gap formed between the side walls 14 can also bear the pressure of the baffle 21 at both ends, reducing the force of the air-permeable spacer 5, and achieve the role of assisting the air-permeable spacer 5 to support the baffle 21.
  • the speaker module further includes a flexible circuit board FPC board 6 with one end electrically connected to the speaker unit 3 and the other end protruding from the short axis side wall 15 of the upper cover 1.
  • the FPC board 6 is mainly electrically connected to the speaker unit 3, and realizes the sound production process of the speaker unit 3 through electric signals.
  • the bottom wall 22 of the lower cover plate is provided with a powder filling hole 221 that is convenient for filling with the sound-absorbing material 4.
  • the powder filling hole 221 communicates with the filling cavity 13, and the speaker module also includes a powder filling hole 221 fixed on the powder filling hole 221 for sealing
  • the sealing cover sheet 7 is fixed in the powder filling hole 221 by double-sided tape.
  • the bottom wall 22 of the lower cover plate is also provided with a leakage hole 222 communicating with the filling cavity 13, and the hole diameter of the leakage hole 222 is smaller than the hole diameter of the powder filling hole 221.
  • the leakage hole 222 is provided with a cover sheet to avoid powder leakage and at the same time ensure the circulation of air flow.
  • the powder filling hole 221 is mainly used to fill the sound-absorbing material 4.
  • the assembly direction of the speaker module of the present invention is pointed by the arrow X in Fig. 6, the upper cover 1 is fixed, the speaker unit 3 is first fixed in the X direction, and then the ring sound-absorbing cotton 11 is in the X direction Fix the mesh, and then cover the lower cover 2 in the X direction, and finally pour the sound-absorbing material 4 in the X direction through the powder filling hole 221.
  • the upper cover 1 is provided with a sounding through hole 31 that is convenient for the speaker unit 3 to emit sound, and the sounding through hole 31 communicates with the receiving cavity 12.
  • the sounding through hole 31 and the upper cover plate 1 are integrally formed, and mainly play a sound transmission process.

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

Abstract

本实用新型提供了一种扬声器模组，包括具有收容腔的上盖板、与上盖板相对开设的下盖板以及容置于收容腔内且固定于上盖板的扬声器单体，其特征在于，上盖板在其未放置扬声器单体的区域设置有上盖板底壁以及由上盖板底壁朝向下盖板延伸的环状吸音棉，扬声器模组还包括固定于环状吸音棉的透气隔离件，上盖板底壁、环状吸音棉以及透气隔离件共同围设形成气流槽体，下盖板对应气流槽体的位置设有下盖板底壁以及由下盖板底壁朝向上盖板延伸并抵接透气隔离件的挡板，挡板、下盖板底壁以及透气隔离件共同构成容纳吸音材料的填充腔，挡板沿上盖板与下盖板组装方向的投影位于气流槽体范围内从而使气流槽体与收容腔之间以及气流槽体与填充腔之间均通过透气隔离件气流连通。

Description

扬声器模组
【 技术领域】
本实用新型涉及电声转换领域，尤其涉及一种扬声器模组。
【 背景技术】
在包括扬声器、壳体和谐振空间的扬声器装置中，气体吸收材料，又称吸音材料，例如，活性碳或沸石，可以放置在其中以改善扬声器装置的声音产生。扬声器的谐振空间中的气体吸收材料通过气体吸收和释放作用导致谐振空间的明显虚拟增大(Virtual Enlargement),从而使得扬声器装置的谐振频率降低至具有较大谐振空间可以实现的值，一般用于提升扬声器的低频效果。
在一般的扬声器中，设置专门区域用以放置所述吸音材料，针对扬声器用于放置吸音材料的区域的研究持续在进行，通常的研究方向是在有限的空间内收纳更多的吸音材料并同时兼顾扬声器工作过程中的气流顺性，因此，如何设置吸音材料的放置空间以及如何使得气流经过较长路径再进入吸音材料区域，成为本实用新型需要解决的问题。
【 实用新型内容】
本实用新型的目的在于提供一种可以封装更多吸音材料以充分发挥吸音材料的性能的扬声器模组。
本实用新型的技术方案如下：
本实施例提供的一种扬声器模组，包括具有收容腔的上盖板、与所述上盖板相对开设的下盖板以及容置于所述收容腔内且固定于上盖板的扬声器单体，所述上盖板在其未放置扬声器单体的区域设置有上盖板底壁以及固定于所述上盖板底壁的环状吸音棉，所述扬声器模组还包括固定于所述环状吸音棉的透气隔离件，所述上盖板底壁、所述环状吸音棉以及所述透气隔离件共同围设形成气流槽体，所述下盖板对应所述气流槽体的位置设有下盖板底壁以及由下盖板底壁朝向所述上盖板延伸并抵接透气隔离件的挡板，所述挡板、所述下盖板底壁以及所述透气隔离件共同构成容纳吸音材料的填充腔，所述挡板沿所述上盖板与下盖板组装方向的投影位于所述气流槽体范围内从而使所述气流槽体与所述收容腔之间以及所述气流槽体与所述填充腔之间均通过透气隔离件气流连通。
优选地，所述环状吸音棉围合形成所述气流槽体的槽侧壁，所述透气隔离件完全盖合在所述环状吸音棉的朝向所述下盖板底壁的表面上形成所述气流槽体的槽顶壁。
优选地，所述上盖板还包括相对开设的两组长轴侧壁以及相对开设并连接两组所述长轴侧壁的两组短轴侧壁，所述挡板与所述下盖板为一体成型结构，且所述挡板的开设方向与所述短轴侧壁的开设方向一致，且所述挡板的两端分别抵持在所述上盖板的两组所述长轴侧壁的内表面。
优选地，所述环状吸音棉两侧还设有与所述挡板配合分隔所述收容腔以及所述填充腔的档柱，所述档柱一端固定在所述环状吸音棉外表面，所述档柱另一端延伸至所述上盖板的所述长轴侧壁内表面。
优选地，所述扬声器模组还包括一端与所述扬声器单体电连接且另一端从所述上盖板的所述短轴侧壁伸出的柔性线路板FPC板。
优选地，所述下盖板底壁上设有便于吸音材料填充的灌粉孔，所述灌粉孔与所述填充腔相通，所述扬声器模组还包括固定于所述灌粉孔上进行密封的密封盖片。
优选地，所述下盖板底壁上还设有与所述填充腔相通的泄露孔，所述泄露孔的孔径小于所述灌粉孔的孔径。
本实用新型的有益效果在于：
本实用新型的扬声器模组将吸音材料放置于下盖板，而不是与放置扬声器单体的空间共用，可以获得更大的填充腔容纳更多的吸音材料。收容腔的气流需要经过透气隔离件、气流槽体后才能进入吸音材料区域，增加了气流流动路径，提升气流顺性，进一步提升发声效果。填充腔的大小不受透气隔离件的大小影响，由挡板的相对位置以及上盖板的收容空间决定，相较于现有技术中透气隔离件的大小决定吸音材料的灌装区域，本实用新型的填充腔体积就更大，可以尽量加大吸音材料的灌装区域。气流槽体的设置，加大了吸音材料与扬声器单体发出的声波之间的接触面积，可以更好的发挥吸音材料的功能。本实用新型采用环状吸音棉作为支撑结构，在满足硬度要求的前提下，耗材成本低，易于加工，且通透性好，与透气隔离件相互配合，气流通道更加通畅，利于气流的传输。
【 附图说明】
图1为本实用新型实施例中扬声器模组的结构示意图；
图2为本实用新型实施例中扬声器模组的立体分解结构示意图；
图3为本实用新型实施例中扬声器模组的局部结构示意图；
图4为本实用新型实施例中上盖板的结构示意图；
图5为本实用新型实施例中下盖板的结构示意图；
图6为本实用新型实施例中扬声器模组沿图1中A-A方向的剖视图；
图7为本实用新型实施例中扬声器模组沿图6中圆圈B区域内组件的局部放大图。
【 具体实施方式】
下面结合附图和实施方式对本实用新型作进一步说明。
请参阅图1-3，本实用新型公开了一种扬声器模组，包括具有收容腔12的上盖板1、与上盖板1相对开设的下盖板2以及容置于收容腔12内且固定于上盖板1的扬声器单体3，上盖板1在其未放置扬声器单体3的区域设置有上盖板底壁17以及固定于上盖板底壁17的环状吸音棉11，扬声器模组3还包括固定于环状吸音棉11的透气隔离件5，上盖板底壁17、环状吸音棉11以及透气隔离件5共同围设形成气流槽体111，下盖板2对应气流槽体111的位置设有下盖板底壁22以及由下盖板底壁22朝向上盖板1延伸并抵接透气隔离件5的挡板21，挡板21、下盖板底壁22以及透气隔离件5共同构成容纳吸音材料的填充腔13，挡板21沿上盖板1与下盖板2组装方向的投影位于气流槽体111范围内从而使气流槽体111与收容腔12之间以及气流槽体111与填充腔13之间均通过透气隔离件5气流连通。
透气隔离件5为一种可以透气并起到隔离作用的元件，具体可以为防尘网布，防尘网布是一种应用于手机、音箱以及其他电子元件起防尘及声学作用的辅助性材料，以聚酯及涤纶为原料利用高精密的织布机编织而成，其具有疏密可变，质量轻，具有一定刚性、顺性和声阻特性等特点。具体的编织材料可选用聚对苯二甲酸乙二醇酯PET以及聚醚醚酮PEEK中的一种或多种。
相较于现有技术，将吸音材料4放置于下盖板2，而不是与放置扬声器单体3的空间共用，可以获得更大的填充腔13容纳更多的吸音材料4。收容腔12的气流需要经过透气隔离件5、气流槽体111后才能进入吸音材料4区域，增加了气流流动路径，提升气流顺性，进一步提升发声效果。填充腔13的大小不受透气隔离件5的大小影响，由挡板21的相对位置以及上盖板1的收容空间决定，相较于现有技术中透气隔离件5的大小决定吸音材料4的灌装区域，本实用新型的填充腔13体积就更大，可以尽量加大吸音材料4的灌装区域。气流槽体111的设置，加大了吸音材料4与扬声器单体3发出的声波之间的接触面积，可以更好的发挥吸音材料4的功能。所以本实用新型可以填充更多吸音材料4，且吸音材料4的性能也能够得到更好的发挥。环状吸音棉11通过双面胶固定于上盖板1，易于加工成型。
请进一步参阅图6-7，环状吸音棉11围合形成气流槽体111的槽侧壁112，透气隔离件5完全盖合在环状吸音棉11的朝向下盖板底壁22的表面上形成气流槽体111的槽顶壁113。透气隔离件5处于填充腔的一端需要与环状吸音棉11完全形成物理隔离状态，以避免吸音材料漏粉至气流槽体111中，透气隔离件5被挡板21分隔的另一端也覆盖于环状吸音棉11上，以达到支撑作用，当然，透气隔离件5的另一端与环状吸音棉11之间也可以设有开口，这样有利于气流槽体111内的空气流通过程，有利于声音更好的被吸音材料吸收，提高吸音材料的吸音效果。
请进一步参阅图4，上盖板1包括相对开设的两组长轴侧壁14以及相对开设并连接两组长轴侧壁14的两组短轴侧壁15，挡板21与下盖板2为一体成型结构，且挡板21的开设方向与短轴侧壁15的开设方向一致，且挡板21的两端分别抵持在上盖板1的两组长轴侧壁14的内表面。挡板21与下盖板2为一体成型结构，易于加工，挡板21两端分别抵持在上盖板1的长轴侧壁14上，可以达到更好的密封效果，避免漏粉。
在本实施例中，环状吸音棉11两侧还设有与挡板21配合分隔收容腔12以及填充腔13的档柱16，档柱16一端固定在环状吸音棉11外表面，档柱16另一端延伸至上盖板1的长轴侧壁14内表面。档柱16的高度与环状吸音棉11的高度一致，环状吸音棉11未与上盖板1的长轴侧壁14相接触，挡柱的设置既可以填补环状吸音棉11与长轴侧壁14之间形成的缝隙，同时也可以在两端承担挡板21的压力，减少透气隔离件5的受力，达到辅助透气隔离件5支撑挡板21的作用。
在本实施例中，扬声器模组还包括一端与扬声器单体3电连接且另一端从上盖板1的短轴侧壁15伸出的柔性线路板FPC板6。FPC板6主要与扬声器单体3电连接，通过电信号实现扬声器单体3的发声过程。
请进一步参阅图5，下盖板底壁22上设有便于吸音材料4填充的灌粉孔221，灌粉孔221与填充腔13相通，扬声器模组还包括固定于灌粉孔221上进行密封的密封盖片7，密封盖片7通过双面胶固定于灌粉孔221中。下盖板底壁22上还设有与填充腔13相通的泄露孔222，泄露孔222的孔径小于灌粉孔221的孔径。泄露孔222上通过盖片避免粉体泄露，同时也保证气流的流通。设有灌粉孔221主要用来填充吸音材料4。
进一步参阅图6，本实用新型的扬声器模组的组装方向如图6中箭头X指向，上盖板1固定，先向X方向固定扬声器单体3，然后在环状吸音棉11上向X方向固定网布，再向X方向盖合下盖板2，最后通过灌粉孔221向X方向灌入吸音材料4。
在本实施例中，上盖板1上设有便于扬声器单体3发声的发声通孔31，发声通孔31与收容腔12相通。发声通孔31与上盖板1为一体成型结构，主要起到传声过程。
以上的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (7)

  1. 一种扬声器模组，包括具有收容腔的上盖板、与所述上盖板相对开设的下盖板以及容置于所述收容腔内且固定于上盖板的扬声器单体，其特征在于，所述上盖板在其未放置扬声器单体的区域设置有上盖板底壁以及固定于所述上盖板底壁的环状吸音棉，所述扬声器模组还包括固定于所述环状吸音棉的透气隔离件，所述上盖板底壁、所述环状吸音棉以及所述透气隔离件共同围设形成气流槽体，所述下盖板对应所述气流槽体的位置设有下盖板底壁以及由下盖板底壁朝向所述上盖板延伸并抵接透气隔离件的挡板，所述挡板、所述下盖板底壁以及所述透气隔离件共同构成容纳吸音材料的填充腔，所述挡板沿所述上盖板与下盖板组装方向的投影位于所述气流槽体范围内从而使所述气流槽体与所述收容腔之间以及所述气流槽体与所述填充腔之间均通过透气隔离件气流连通。
  2. 根据权利要求1所述的扬声器模组，其特征在于，所述环状吸音棉围合形成所述气流槽体的槽侧壁，所述透气隔离件完全盖合在所述环状吸音棉的朝向所述下盖板底壁的表面上形成所述气流槽体的槽顶壁。
  3. 根据权利要求1所述的扬声器模组，其特征在于，所述上盖板还包括相对开设的两组长轴侧壁以及相对开设并连接两组所述长轴侧壁的两组短轴侧壁，所述挡板与所述下盖板为一体成型结构，且所述挡板的开设方向与所述短轴侧壁的开设方向一致，且所述挡板的两端分别抵持在所述上盖板的两组所述长轴侧壁的内表面。
  4. 根据权利要求3所述的扬声器模组，其特征在于，所述环状吸音棉两侧还设有与所述挡板配合分隔所述收容腔以及所述填充腔的档柱，所述档柱一端固定在所述环状吸音棉外表面，所述档柱另一端延伸至所述上盖板的所述长轴侧壁内表面。
  5. 根据权利要求3所述的扬声器模组，其特征在于，所述扬声器模组还包括一端与所述扬声器单体电连接且另一端从所述上盖板的所述短轴侧壁伸出的柔性线路板FPC板。
  6. 根据权利要求1所述的扬声器模组，其特征在于，所述下盖板底壁上设有便于吸音材料填充的灌粉孔，所述灌粉孔与所述填充腔相通，所述扬声器模组还包括固定于所述灌粉孔上进行密封的密封盖片。
  7. 根据权利要求6所述的扬声器模组，其特征在于，所述下盖板底壁上还设有与所述填充腔相通的泄露孔，所述泄露孔的孔径小于所述灌粉孔的孔径。
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