WO2021134465A1 - 一种扬声器箱 - Google Patents

一种扬声器箱 Download PDF

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Publication number
WO2021134465A1
WO2021134465A1 PCT/CN2019/130479 CN2019130479W WO2021134465A1 WO 2021134465 A1 WO2021134465 A1 WO 2021134465A1 CN 2019130479 W CN2019130479 W CN 2019130479W WO 2021134465 A1 WO2021134465 A1 WO 2021134465A1
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WO
WIPO (PCT)
Prior art keywords
upper cover
bottom wall
lower cover
filling cavity
sealing plate
Prior art date
Application number
PCT/CN2019/130479
Other languages
English (en)
French (fr)
Inventor
印兆宇
陈志臣
柳林
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/CN2019/130479 priority Critical patent/WO2021134465A1/zh
Publication of WO2021134465A1 publication Critical patent/WO2021134465A1/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

Definitions

  • the utility model belongs to the technical field of electroacoustics, and particularly relates to a speaker box.
  • the sealing plate is usually assembled by hot-melt on the back of the monomer, and the side and the back area are connected into a whole through the sealing plate and the upper cover retaining wall.
  • the sound-absorbing material is filled in the side surface at this time.
  • the cavity may not have enough air permeability, resulting in the inability to give full play to the performance of the side sound-absorbing material.
  • the purpose of the utility model is to provide a loudspeaker box, which aims to improve the efficiency of filling sound-absorbing materials and assembly, and reduce the cost.
  • a speaker box comprising an upper cover, a lower cover forming a housing space with the upper cover, and a speaker unit accommodated in the housing space and fixed to the upper cover
  • the lower cover includes a lower cover bottom wall, a side wall extending from the periphery of the lower cover bottom wall toward the upper cover and fixed on the upper cover, and a plurality of side walls extending from the lower cover bottom wall toward the upper cover
  • the speaker box further includes a sealing plate fixed on the convex column, and the bottom wall of the lower cover, the side wall and the sealing plate are enclosed to form a first filling containing sound-absorbing material
  • the upper cover is provided with an upper cover bottom wall and an insert plate clamped between the upper cover bottom wall and the sealing plate in the area where the speaker unit is not placed, and the speaker box further includes a device In the second filling cavity on the side of the plug-in board away from the speaker unit, the first filling cavity and the bottom wall of the lower cover are formed between an end of the sealing plate member
  • the upper cover includes two oppositely arranged long axis side walls and a short axis side wall arranged oppositely and connecting the two groups of long axis side walls.
  • the extension direction of the insert plate is the same as that of the short axis side walls. The directions are the same, and the two ends of the insert plate respectively abut against the inner wall surfaces of the two sets of long axis side walls.
  • the position of the upper cover corresponding to the insert plate is provided with two stoppers extending toward the insert plate from two sets of oppositely arranged long-axis side walls, and the upper end of the stopper abuts against the sealing plate.
  • the lower end of the stopper is connected with the bottom wall of the upper cover, the two stoppers are respectively provided with first grooves corresponding to the insert plate, and the two ends of the insert plate are respectively inserted into the two first grooves. In the groove, one end of the stopper away from the insert plate abuts against the inner surface of the side wall.
  • the plug-in board is provided with a second groove recessed in a direction away from the second filling cavity corresponding to the second filling cavity.
  • the sealing plate includes a gas-permeable spacer and a fixing ring that surrounds the periphery of the gas-permeable spacer and is fixed to the gas-permeable spacer on a side of the gas-permeable spacer close to the lower cover.
  • the fixing ring is supported and the fixing ring and the inner wall of the frame are fixed by dispensing glue.
  • the position of the bottom wall of the lower cover corresponding to the insert plate is provided with two protruding posts connected to the inner surface of the side wall, and the insert plate extends along the assembling direction of the upper cover and the lower cover.
  • the projection coincides with the projection part of the convex column along the assembling direction of the upper cover and the lower cover.
  • insert plate and the air-permeable spacer are sealed by foam or glued.
  • the speaker box further includes a flexible circuit board electrically connected to the speaker unit, one end of the flexible circuit board is connected to the speaker unit, and the other end of the flexible circuit board extends toward the plug-in board.
  • the bottom wall of the upper cover is provided with a powder filling hole for filling the sound-absorbing material, and the powder filling hole is in communication with the second filling cavity.
  • an area of the upper cover corresponding to the speaker unit is provided with a through hole that penetrates the upper cover and communicates with the accommodating space, and the upper cover further includes a cover provided with the through hole and fixed to the The upper cover of the steel sheet.
  • the beneficial effect of the present invention is that the upper cover of the speaker box of the present invention is provided with an insert plate clamped between the bottom wall of the upper cover and the sealing plate in the area where the speaker unit is not placed, instead of the related art
  • the thickness of the baffle and the insert plate is smaller than the thickness of the baffle, so that the ventilation space of the second filling cavity is increased, and the cavity area can be fully leaked, which is beneficial to improve the acoustic performance.
  • Figure 1 is a schematic diagram of the overall structure of a speaker box provided by an embodiment of the present invention.
  • Figure 2 is a schematic diagram of an exploded structure of a speaker box provided by an embodiment of the present invention.
  • Figure 3 is a schematic diagram of the structure of the upper cover provided by the embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the structure of the lower cover and the sealing plate provided by the embodiment of the present invention.
  • Figure 5 is a partial structural diagram of a speaker box provided by an embodiment of the present utility model
  • Fig. 6 is a schematic cross-sectional view taken along the A-A direction of Fig. 1;
  • FIG. 7 is a schematic diagram of an enlarged structure of part B in FIG. 6.
  • the speaker box includes an upper cover 1 and a lower cover forming a receiving space 6 with the upper cover 1. 2 and the speaker unit 3 housed in the accommodating space 6 and fixed to the upper cover 1.
  • the lower cover 2 includes a lower cover bottom wall 22 extending from the periphery of the lower cover bottom wall 22 toward the upper cover 1 and is fixed on the upper cover 1
  • the side wall 21 of the lower cover and a plurality of protrusions 23 extending from the bottom wall 22 of the lower cover toward the direction of the upper cover 1, the speaker box further includes a sealing plate 4 fixed on the protrusions 23, the bottom wall 22 of the lower cover, the side walls 21 and The sealing plate 4 encloses to form a first filling cavity 61 containing the sound-absorbing material.
  • the upper cover 1 is provided with an upper cover bottom wall 11 in the area where the speaker unit 3 is not placed, and is clamped on the upper cover bottom wall 11 and the sealing plate 4
  • the speaker box also includes a second filling cavity 62 provided on the side of the insertion plate 12 away from the speaker unit 3, and the sealing plate 4 faces the end of the second filling cavity 62 and the bottom wall 22 of the lower cover.
  • a channel 7 connecting the first filling cavity 61 and the second filling cavity 62 is formed therebetween.
  • the upper cover 1 of the speaker box of the present invention is provided with an insert plate 12 clamped between the bottom wall 11 of the upper cover and the sealing plate 4 in the area where the speaker unit 3 is not placed, instead of the related In the technical baffle, the thickness of the insert plate 12 is smaller than the thickness of the baffle, so that the ventilation space of the second filling cavity 62 is increased, and the cavity area can be fully leaked, which is beneficial to improving the acoustic performance.
  • the upper cover 1 includes two oppositely arranged long axis side walls 13 and a short axis side wall 14 oppositely arranged and connected to the two long axis side walls 13.
  • the extension direction of the insert plate 12 and the short axis side wall The extension direction of 14 is the same, and the two ends of the insert plate 12 respectively abut the inner wall surfaces of the two sets of long-axis side walls 13, which can further enhance the sealing effect and prevent powder leakage.
  • the extension direction of the insert plate 12 is the same as the extension direction of the short axis side wall 14, so that the length of the insert plate 12 is minimized, the insert plate 12 is prevented from occupying too much space, and the ventilation space of the second filling cavity 62 is larger.
  • the position of the upper cover 1 corresponding to the insert plate 12 is provided with two stoppers 15 extending from the two oppositely arranged long-axis side walls 13 toward the insert plate 12.
  • the upper ends of the stoppers 15 abut and block the sealing plate 4
  • the lower end of the block 15 is connected to the bottom wall 11 of the upper cover.
  • the two stoppers 15 are respectively provided with first grooves 151 corresponding to the insert plate 12, and the two ends of the insert plate 12 are respectively inserted into the two first grooves 151, and the stop 15 is far away
  • One end of the insert plate 12 abuts against the inner surface of the side wall 21. Both ends of the insert plate 12 are inserted into the two first grooves 151 respectively, which can further stabilize the insert plate 12 and enhance the sealing effect.
  • the plug-in board 12 of this embodiment is provided with a second groove 121 recessed in the direction away from the second filling cavity 62 corresponding to the second filling cavity 62, which further reduces the thickness of the plug-in board 12 and increases the second cavity accordingly. Fill the air-permeable space of the cavity 62.
  • the sealing plate 4 of this embodiment includes a gas-permeable spacer 41 and a fixing that surrounds the perimeter of the gas-permeable spacer 41 on the side of the gas-permeable spacer 41 near the lower cover 2 and is fixed to the gas-permeable spacer 41
  • the ring 42 and the boss 23 support the fixed ring 42 and the fixed ring 42 and the inner wall of the side wall 21 are fixed by glue. Due to the small thickness of the air-permeable spacer 41, it is difficult to ensure that the air-permeable spacer 41 is firmly fixed only by the support of the boss 23.
  • the fixing ring 42 of this embodiment and the inner surface of the side wall 21 are glued and fixed to ensure the sealing plate 4 There is no gap with the side wall 21, and the shape of the fixing ring 42 is adapted to the shape of the side wall 21, which enhances the sealing effect and prevents powder leakage.
  • the insert plate 12 and the air-permeable spacer 41 are sealed by foam or glued to avoid powder leakage.
  • the position of the bottom wall 22 of the lower cover corresponding to the insert plate 12 is provided with two convex posts 23 connected to the inner surface of the side wall 21.
  • the projection of the insert plate 12 along the assembling direction of the upper cover 1 and the lower cover 2 is consistent with the projection of the boss 23 along the upper cover
  • the projection part of the assembly direction of 1 and the lower cover 2 overlaps, so that the convex post 23 and the fixing ring 42 and the air-permeable spacer 41 and the insert plate 12 achieve a better sealing effect.
  • this embodiment does not limit the position of the protruding pillars 23, but the number of protruding pillars 23 should not be too large to prevent occupying too much filling space.
  • the speaker box further includes a flexible circuit board 5 electrically connected to the speaker unit 3, one end of the flexible circuit board 5 is connected to the speaker unit 3, and the other end of the flexible circuit board 5 extends toward the plug-in board 12. 3 is electrically connected to the flexible circuit board 5 so that the speaker unit 3 is energized and works normally.
  • the bottom wall 11 of the upper cover is provided with a powder filling hole 17 for filling sound-absorbing material.
  • the powder filling hole 17 is in communication with the second filling cavity 62, and the sound-absorbing material is poured into the second filling cavity 62 through the powder filling hole 17 .
  • the upper cover 1 of this embodiment is provided with a through hole 18 that penetrates the upper cover 1 and communicates with the accommodating space 6 in an area corresponding to the speaker unit 3.
  • the upper cover 1 also includes a steel sheet that covers the through hole 18 and is fixed to the upper cover 1. 16.
  • the steel sheet 16 can increase the strength of the upper cover 1.
  • the bottom wall 22 of the lower cover in this embodiment is also a steel sheet structure.

Abstract

本实用新型提供了一种扬声器箱，其包括上盖、与上盖形成收容空间的下盖以及收容于收容空间内的扬声器单体，下盖包括下盖底壁、固定在上盖上的侧壁以及多个凸柱，扬声器箱还包括固定在凸柱上的密封板件，下盖底壁、侧壁以及密封板件合围形成容纳吸音材料的第一填充腔，上盖在其未放置扬声器单体的区域设置有上盖底壁以及夹持在上盖底壁和密封板件之间的插板，扬声器箱还包括设于插板远离扬声器单体一侧的第二填充腔，密封板件朝向第二填充腔一端与下盖底壁之间形成连通第一填充腔和第二填充腔的通道。在本实用新型中，插板使得第二填充腔的透气空间增大，腔体区域可以得到充分泄露，有利于提升声学性能。

Description

一种扬声器箱 技术领域
本实用新型属于电声技术领域，尤其涉及一种扬声器箱。
 背景技术
随着科技的快速发展，音频设备也不断快速发展，人们对音频设备的功能性要求越来越高，对于扬声器箱，越来越多人对其音频性能提出了较高的要求。相关技术中，若要灌装吸音材料，通常是在单体背面热熔组装密封板，通过密封板和上盖挡墙配合将侧面和背面区域连成一个整体灌装吸音材料，但是此时侧面腔体有可能透气深度不够，导致不能充分发挥侧面吸音材料的性能。
 技术问题
本实用新型的目的在于提供一种扬声器箱，旨在提高灌装吸音材料以及装配的效率，降低成本。
 技术解决方案
本实用新型的技术方案如下：一种扬声器箱，其包括上盖、与所述上盖形成收容空间的下盖以及收容于所述收容空间内且固定于所述上盖的扬声器单体，所述下盖包括下盖底壁、自所述下盖底壁周缘朝所述上盖方向延伸且固定在所述上盖上的侧壁以及多个自所述下盖底壁朝向所述上盖方向延伸的凸柱，所述扬声器箱还包括固定在所述凸柱上的密封板件，所述下盖底壁、所述侧壁以及所述密封板件合围形成容纳吸音材料的第一填充腔，所述上盖在其未放置扬声器单体的区域设置有上盖底壁以及夹持在所述上盖底壁和所述密封板件之间的插板，所述扬声器箱还包括设于所述插板远离所述扬声器单体一侧的第二填充腔，所述密封板件朝向所述第二填充腔一端与所述下盖底壁之间形成连通所述第一填充腔和所述第二填充腔的通道。
进一步地，所述上盖包括相对设置的两组长轴侧壁以及相对设置且连接两组长轴侧壁的短轴侧壁，所述插板的延伸方向与所述短轴侧壁的延伸方向相同，所述插板的两端分别抵接两组所述长轴侧壁的内壁面。
进一步地，所述上盖对应所述插板的位置设有自相对设置的两组长轴侧壁朝所述插板延伸的两个挡块，所述挡块上端与所述密封板件抵接且所述挡块下端与所述上盖底壁连接，两个所述挡块对应所述插板分别开设有第一凹槽，所述插板的两端分别插入两个所述第一凹槽中，所述挡块远离所述插板一端抵持在所述侧壁的内表面。
进一步地，所述插板对应所述第二填充腔开设有朝远离所述第二填充腔方向凹陷的第二凹槽。
进一步地，所述密封板件包括透气隔离件以及于所述透气隔离件靠近所述下盖一侧沿所述透气隔离件周缘环绕且与所述透气隔离件固定的固定环，所述凸柱支撑所述固定环且所述固定环与所述边框的内壁通过点胶固定。
进一步地，所述下盖底壁对应所述插板的位置设有两个与所述侧壁的内表面连接的凸柱，所述插板沿所述上盖与所述下盖组装方向的投影与所述凸柱沿所述上盖与所述下盖组装方向的投影部分重合。
进一步地，所述插板与所述透气隔离件之间通过泡棉密封或通过点胶密封。
进一步地，所述扬声器箱还包括与所述扬声器单体电连接的柔性线路板，所述柔性线路板一端与所述扬声器单体连接，所述柔性线路板另一端朝所述插板方向延伸。
进一步地，所述上盖底壁上设有用于填充吸音材料的灌粉孔，所述灌粉孔与所述第二填充腔连通。
进一步地，所述上盖对应所述扬声器单体的区域开设有贯穿所述上盖并与所述收容空间连通的通孔，所述上盖还包括盖设所述通孔并固定于所述上盖的钢片。
 有益效果
本实用新型的有益效果在于：本实用新型的扬声器箱的上盖在其未放置扬声器单体的区域设置夹持在上盖底壁和密封板件之间的插板，取代了相关技术中的挡板，插板的厚度小于挡板的厚度，使得第二填充腔的透气空间增大，腔体区域可以得到充分泄露，有利于提升声学性能。
 附图说明
图1是本实用新型实施例提供的扬声器箱的整体结构示意图；
图2是本实用新型实施例提供的扬声器箱的分解结构示意图；
图3是本实用新型实施例提供的上盖的结构示意图；
图4是本实用新型实施例提供的下盖和密封板件的结构示意图；
图5是本实用新型实施例提供的扬声器箱的局部结构示意图；
图6是图1的A-A方向剖切示意图；
图7是图6中B部分的放大结构示意图。
 本发明的实施方式
下面结合附图和实施方式对本实用新型作进一步说明。
如图1至图3所示，是本实用新型实施例提供的一种扬声器箱，请一同参阅图5和图6，该扬声器箱包括上盖1、与上盖1形成收容空间6的下盖2以及收容于收容空间6内且固定于上盖1的扬声器单体3，下盖2包括下盖底壁22、自下盖底壁22周缘朝上盖1方向延伸且固定在上盖1上的侧壁21以及多个自下盖底壁22朝向上盖1方向延伸的凸柱23，扬声器箱还包括固定在凸柱23上的密封板件4，下盖底壁22、侧壁21以及密封板件4合围形成容纳吸音材料的第一填充腔61，上盖1在其未放置扬声器单体3的区域设置有上盖底壁11以及夹持在上盖底壁11和密封板件4之间的插板12，扬声器箱还包括设于插板12远离所述扬声器单体3一侧的第二填充腔62，密封板件4朝向第二填充腔62一端与下盖底壁22之间形成连通第一填充腔61和第二填充腔62的通道7。
相较于相关技术，本实用新型的扬声器箱的上盖1在其未放置扬声器单体3的区域设置夹持在上盖底壁11和密封板件4之间的插板12，取代了相关技术中的挡板，插板12的厚度小于挡板的厚度，使得第二填充腔62的透气空间增大，腔体区域可以得到充分泄露，有利于提升声学性能。
请进一步参阅图3，上盖1包括相对设置的两组长轴侧壁13以及相对设置且连接两组长轴侧壁13的短轴侧壁14，插板12的延伸方向与短轴侧壁14的延伸方向相同，插板12的两端分别抵接两组长轴侧壁13的内壁面，能够进一步增强密封效果，防止出现漏粉现象。插板12的延伸方向与短轴侧壁14的延伸方向相同，使得插板12的长度最小化，避免插板12占用太多的空间，也使得第二填充腔62的透气空间更大。
优选的，上盖1对应插板12的位置设有自相对设置的两组长轴侧壁13朝插板12延伸的两个挡块15，挡块15上端与密封板件4抵接且挡块15下端与上盖底壁11连接，两个挡块15对应插板12分别开设有第一凹槽151，插板12的两端分别插入两个第一凹槽151中，挡块15远离插板12一端抵持在侧壁21的内表面。插板12的两端分别插入两个第一凹槽151中，能够进一步稳固插板12，增强密封效果。挡块15远离插板12一端抵持在侧壁21的内表面，进一步增强了密封效果，防止出现漏粉现象。另外，本实施例的插板12对应第二填充腔62开设有朝远离第二填充腔62方向凹陷的第二凹槽121，进一步减小了插板12的厚度，相应地增大了第二填充腔62的透气空间。
请进一步参阅图4至图7，本实施例的密封板件4包括透气隔离件41以及于透气隔离件41靠近下盖2一侧沿透气隔离件41周缘环绕且与透气隔离件41固定的固定环42，凸柱23支撑固定环42且固定环42与侧壁21的内壁通过点胶固定。由于透气隔离件41的厚度较小，仅靠凸柱23的支撑难以保证透气隔离件41固定稳固，因此本实施例的固定环42与侧壁21的内表面的点胶固定保证密封板件4与侧壁21之间没有缝隙，并且固定环42的形状与侧壁21的形状适配，增强了密封效果，防止漏粉。插板12与透气隔离件41之间通过泡棉密封或通过点胶密封，避免漏粉。下盖底壁22对应插板12的位置设有两个与侧壁21的内表面连接的凸柱23，插板12沿上盖1与下盖2组装方向的投影与凸柱23沿上盖1与下盖2组装方向的投影部分重合，使得凸柱23与固定环42以及透气隔离件41与插板12达到更好的密封效果。当然，本实施例没有限制凸柱23的位置，但凸柱23的数量不宜太多，防止占用太多的填充空间。
本实施例中，扬声器箱还包括与扬声器单体3电连接的柔性线路板5，柔性线路板5一端与扬声器单体3连接，柔性线路板5另一端朝插板12方向延伸，扬声器单体3与柔性线路板5电连接以使扬声器单体3通电正常工作。
本实施例中，上盖底壁11上设有用于填充吸音材料的灌粉孔17，灌粉孔17与第二填充腔62连通，通过灌粉孔17往第二填充腔62灌入吸音材料。本实施例的上盖1对应扬声器单体3的区域开设有贯穿上盖1并与收容空间6连通的通孔18，上盖1还包括盖设通孔18并固定于上盖1的钢片16，钢片16可提高上盖1的强度。本实施例的下盖底壁22也为钢片结构。
以上所述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 (10)

  1. 一种扬声器箱，包括上盖、与所述上盖形成收容空间的下盖以及收容于所述收容空间内且固定于所述上盖的扬声器单体，其特征在于，所述下盖包括下盖底壁、自所述下盖底壁周缘朝所述上盖方向延伸且固定在所述上盖上的侧壁以及多个自所述下盖底壁朝向所述上盖方向延伸的凸柱，所述扬声器箱还包括固定在所述凸柱上的密封板件，所述下盖底壁、所述侧壁以及所述密封板件合围形成容纳吸音材料的第一填充腔，所述上盖在其未放置扬声器单体的区域设置有上盖底壁以及夹持在所述上盖底壁和所述密封板件之间的插板，所述扬声器箱还包括设于所述插板远离所述扬声器单体一侧的第二填充腔，所述密封板件朝向所述第二填充腔一端与所述下盖底壁之间形成连通所述第一填充腔和所述第二填充腔的通道。
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述上盖包括相对设置的两组长轴侧壁以及相对设置且连接两组长轴侧壁的短轴侧壁，所述插板的延伸方向与所述短轴侧壁的延伸方向相同，所述插板的两端分别抵接两组所述长轴侧壁的内壁面。
  3. 根据权利要求2所述的扬声器箱，其特征在于，所述上盖对应所述插板的位置设有自相对设置的两组长轴侧壁朝所述插板延伸的两个挡块，所述挡块上端与所述密封板件抵接且所述挡块下端与所述上盖底壁连接，两个所述挡块对应所述插板分别开设有第一凹槽，所述插板的两端分别插入两个所述第一凹槽中，所述挡块远离所述插板一端抵持在所述侧壁的内表面。
  4. 根据权利要求1所述的扬声器箱，其特征在于，所述插板对应所述第二填充腔开设有朝远离所述第二填充腔方向凹陷的第二凹槽。
  5. 根据权利要求1所述的扬声器箱，其特征在于，所述密封板件包括透气隔离件以及于所述透气隔离件靠近所述下盖一侧沿所述透气隔离件周缘环绕且与所述透气隔离件固定的固定环，所述凸柱支撑所述固定环且所述固定环与所述侧壁的内壁通过点胶固定。
  6. 根据权利要求1所述的扬声器箱，其特征在于，所述下盖底壁对应所述插板的位置设有两个与所述侧壁的内表面连接的所述凸柱，所述插板沿所述上盖与所述下盖组装方向的投影与所述凸柱沿所述上盖与所述下盖组装方向的投影部分重合。
  7. 根据权利要求5所述的扬声器箱，其特征在于，所述插板与所述透气隔离件之间通过泡棉密封或通过点胶密封。
  8. 根据权利要求1所述的扬声器箱，其特征在于，所述扬声器箱还包括与所述扬声器单体电连接的柔性线路板，所述柔性线路板一端与所述扬声器单体连接，所述柔性线路板另一端朝所述插板方向延伸。
  9. 根据权利要求1所述的扬声器箱，其特征在于，所述上盖底壁上设有用于填充吸音材料的灌粉孔，所述灌粉孔与所述第二填充腔连通。
  10. 根据权利要求1所述的扬声器箱，其特征在于，所述上盖对应所述扬声器单体的区域开设有贯穿所述上盖并与所述收容空间连通的通孔，所述上盖还包括盖设所述通孔并固定于所述上盖的钢片。
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CN206542568U (zh) * 2017-03-01 2017-10-03 瑞声光电科技(常州)有限公司 扬声器箱
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