WO2022007023A1 - 扬声器箱 - Google Patents

扬声器箱 Download PDF

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Publication number
WO2022007023A1
WO2022007023A1 PCT/CN2020/104669 CN2020104669W WO2022007023A1 WO 2022007023 A1 WO2022007023 A1 WO 2022007023A1 CN 2020104669 W CN2020104669 W CN 2020104669W WO 2022007023 A1 WO2022007023 A1 WO 2022007023A1
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WO
WIPO (PCT)
Prior art keywords
sound
basin frame
elastic member
yoke
hole
Prior art date
Application number
PCT/CN2020/104669
Other languages
English (en)
French (fr)
Inventor
吴军
印兆宇
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
Publication of WO2022007023A1 publication Critical patent/WO2022007023A1/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
    • 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the invention relates to the field of sound and electricity, in particular to a speaker box.
  • the speaker box of the related art includes a housing with a housing space and a sound-generating unit housed in the housing, and the sound-generating unit divides the housing space into a front cavity and a rear cavity.
  • the speaker box of the related art further includes a baffle wall disposed in the rear cavity and spaced apart from the sound generating unit, and a ventilation member disposed on the baffle wall.
  • the baffle wall and the ventilation part cooperate to separate the rear cavity into an independent space for filling with sound-absorbing particles.
  • the retaining wall and the plug board occupy the space of the rear cavity, so that the volume utilization rate of the rear cavity is low, and thus the acoustic performance of the speaker box cannot be further improved.
  • the purpose of the present invention is to provide a speaker box that improves the utilization rate of the back cavity.
  • the present invention provides a loudspeaker box, which comprises a casing with a receiving space, a sound generating unit contained in the receiving space of the casing, and a sound generating unit contained in the receiving space and covering the
  • the air-permeable spacer of the sounding unit, the sounding unit and the air-permeable spacer together divide the accommodation space into a front cavity and a rear cavity
  • the outer shell includes an upper cover and a lower cover
  • the sounding unit is fixed
  • the lower cover it includes a basin frame fixed on the casing, a vibration system fixed on the basin frame, and a magnetic circuit system for driving the vibration system to vibrate and sound
  • the magnetic circuit system includes a a magnetic yoke
  • the lower cover includes a bottom wall, a mounting hole provided on the bottom wall, and a hole wall enclosing the mounting hole, the magnetic yoke is mounted on the mounting hole and exposed to the receiving space , the rear cavity is filled with sound-absorbing particles, and the air-per
  • the air-permeable spacer further includes a socket hole enclosed by the first fixing portion and the cover body, the yoke body is accommodated in the socket hole, and the first fixing portion is formed from the socket body.
  • One end of the cover body away from the second engaging portion is bent in a direction away from the socket hole and extends horizontally.
  • the first engaging portion is a stepped structure disposed on the edge of the yoke body, and the second engaging portion is directed from the end of the cover away from the first fixing portion toward the socket hole Inwardly bent and extended horizontally, the second engaging portion presses against the first engaging portion.
  • the air-permeable isolator further includes an escape hole provided on the first fixing part
  • the vibration system includes a diaphragm fixed on the basin frame, a voice coil that drives the diaphragm to vibrate and sound, and a fixed diaphragm.
  • An elastic support component is arranged on the basin frame and opposite to the diaphragm and is spaced apart, and the avoidance hole corresponds to the elastic support component.
  • the elastic support assembly includes a connecting frame connecting the diaphragm and the voice coil, a first elastic member connecting the connecting frame and the basin frame, and a connection away from the first elastic member.
  • One end of the frame is connected to the auxiliary film and the second elastic member, and the escape hole corresponds to the second elastic member.
  • the first elastic member and the second elastic member are both flexible circuit boards, the first elastic member is electrically connected to the second elastic member, and the second elastic member is provided with Avoid the pads where the holes are facing.
  • the basin frame includes a basin frame body, a plurality of spaced extending arms extending from one end of the basin frame body close to the magnetic circuit system, and a plurality of extending arms disposed on the extending arms close to the basin frame body an insertion slot on one end
  • the magnetic yoke further includes an installation slot provided on the yoke body and passing through the first engaging part, the extension arm is inserted into and fixed in the installation slot, so that the The yoke body is fixedly connected with the basin frame body.
  • the ventilating spacer of the speaker box provided by the present invention and the sound-generating unit together divide the accommodation space into a front cavity and a rear cavity, the sound-generating unit has an inner cavity, and a basin frame and a magnetic yoke are close to the rear cavity.
  • the side interval forms a communicating part
  • the ventilating spacer is arranged around the periphery of the sound-emitting unit and completely covers the communicating part
  • the inner cavity is connected with the back cavity through the communicating part and the ventilating spacer in turn
  • the back cavity is filled with sound-absorbing particles
  • the ventilating spacer removes the sound-absorbing particles It is encapsulated in the back cavity, and the above structure makes the back cavity filled with sound-absorbing particles as a virtual sound cavity, which effectively improves the low-frequency acoustic performance of the speaker box.
  • the volume of the rear cavity can effectively improve the filling efficiency of the sound-absorbing particles in the rear cavity.
  • the magnetic yoke includes a magnetic yoke body and a first engaging portion arranged on the edge of the magnetic yoke body
  • the breathable spacer includes a cover body and a first fixing portion and a second fixing portion extending from both ends of the cover body.
  • the engaging part, the first fixing part is connected with the basin frame
  • the cover body is arranged around the periphery of the sounding unit and completely covers the communicating part
  • the cover body is sleeved and closely attached to the A magnetic yoke
  • the second engaging portion is engaged with the first engaging portion so that the yoke body is exposed from the mounting hole. Effectively achieves a strong connection between the breathable spacer, the sound-generating unit and the housing.
  • the encapsulation mode of the ventilating spacer, the sounding unit and the lower cover of the speaker box forms a full filling design, which effectively utilizes the volume of the back cavity.
  • FIG. 1 is an exploded view of the speaker enclosure of the present invention.
  • FIG. 2 is a schematic diagram of an explosion structure of the sounding monomer shown in FIG. 1 .
  • FIG. 3 is a schematic diagram of the sound-generating unit shown in FIG. 2 at another angle.
  • FIG. 4 is a schematic three-dimensional structural diagram of the air-permeable spacer shown in FIG. 1 .
  • FIG. 5 is a schematic three-dimensional structural diagram of the assembled speaker box shown in FIG. 1 .
  • FIG. 6 is a schematic structural diagram of the speaker box shown in FIG. 5 at another angle.
  • FIG. 7 is a schematic cross-sectional structural diagram of the speaker box shown in FIG. 6 along the A-A direction.
  • FIG. 8 is a schematic view of the enlarged structure of the speaker box shown in FIG. 7 at B.
  • FIG. 8 is a schematic view of the enlarged structure of the speaker box shown in FIG. 7 at B.
  • the speaker box 100 provided according to the present invention includes a housing 10 having a receiving space 40 , a sound generating unit 20 received in the receiving space 40 of the housing 10 ,
  • the accommodating space 40 is covered with the air-permeable spacer 30 and the sealing element 50 of the sound-generating unit 20.
  • the sound-generating unit 20 and the air-permeable isolator 30 together divide the accommodating space 40 into a front cavity 41 and a sealing element 50.
  • the rear cavity 42, the casing 10 is provided with a filling hole 125 communicating with the rear cavity 42, the speaker box 100 fills the sound-absorbing particles 60 into the rear cavity 42 through the filling hole 125, and the air-permeable spacer 30.
  • the sound-absorbing particles 60 are encapsulated in the rear cavity 42, and the sealing member 50 is used to close the filling hole 125.
  • the housing 10 includes an upper cover 11 and a lower cover 12
  • the upper cover 11 includes a top wall 111 , a first side wall 112 bent and extended from the edge of the top wall 111 , and a protrusion from the top wall 111 .
  • the protruding annular retaining wall 113 , the protruding wall 114 protruding from the first side wall 112 in a direction away from the annular retaining wall 113 , and the positioning column 115 provided on the protruding wall 114 .
  • the lower cover 12 includes a bottom wall 121 , a second side wall 122 bent and extended from the edge of the bottom wall 121 , a mounting hole 123 formed on the bottom wall 121 , and a hole enclosing the mounting hole 123
  • the wall 124 and the filling hole 125 are provided on the bottom wall 121 .
  • the first side wall 112 and the second side wall 122 of the bottom wall 121 are joined together so that the upper cover 11 and the lower cover 12 are combined to form the receiving space 40 .
  • One end is installed in the installation hole 123 , and the other end is installed in the annular retaining wall 113 .
  • the sound-generating unit 20 and the upper cover 11 are spaced apart to form the front cavity 41 , and the sound-generating unit 20 , the upper cover 11 and the lower cover 12 are enclosed to form the rear cavity 42 .
  • the sounding unit 20 includes a basin frame 21 and a vibration system 22 respectively fixed on the basin frame 21, a magnetic circuit system 23 with a magnetic gap 235 and fixed on the basin frame 21, and a magnetic circuit system 23 which is sleeved and fixed on the basin frame 21.
  • the vibration system 22 and the magnetic circuit system 23 are enclosed to form an inner cavity 25
  • the basin frame 21 and the magnetic circuit system 23 are spaced to form a communication portion 26 .
  • the ventilating spacer 30 is covered on the magnetic circuit system 23 and connected to the middle frame 24 , and the inner cavity 25 communicates with the rear cavity 42 through the communicating portion 26 and the ventilating spacer 30 in sequence.
  • the vibration system 22 is installed on the annular retaining wall 113 and is spaced from the top wall 111 to form the front cavity 41
  • the magnetic circuit system 30 is installed in the installation hole 123 from the The mounting hole 123 is exposed.
  • the basin frame 21 is used to support the vibration system 22 and the magnetic circuit system 23 , and includes a basin frame body 211 , a shaft extending from the end of the basin frame body 211 close to the magnetic circuit system 23 .
  • a plurality of extension arms 212 are arranged at intervals, and an insertion slot 213 is provided on one end of the extension arm 212 close to the basin frame body 211 .
  • the vibration system 11 is connected to the basin frame body 211
  • the middle frame 24 is fixed to the basin frame body 211
  • the magnetic circuit system 23 is connected to the extension arm 212
  • the ventilation spacer 30 surrounds the frame.
  • the extension arm 212 and the magnetic circuit system 23 .
  • the vibration system 22 includes a diaphragm 221 fixed on the basin frame 211 , a voice coil 222 inserted in the magnetic gap 235 to drive the diaphragm 221 to vibrate and produce sound, and a voice coil 222 fixed on the basin frame 211
  • the elastic support component 23 is arranged opposite to the vibrating membrane 221 and is spaced apart.
  • the diaphragm 221 includes a folded ring 2211, a second fixed portion 2212 and a vibrating portion 2213 extending from both sides of the folded ring 2211, and a dome 2214 fixed on the vibrating portion 2213.
  • the second fixed portion 2212 is connected to the basin frame body 211 .
  • the elastic support assembly 223 includes a connecting frame 2231 connecting the end of the dome 2214 away from the vibrating portion 2213 and the voice coil 222 , and a first elastic member connecting the connecting frame 2231 and the basin frame body 211 2232, the auxiliary film 2233 and the second elastic member 2234 connected to the end of the first elastic member 2232 away from the connecting frame 2231, and the positioning hole 2235 and the pad 2236 provided on the second elastic member 2234, so
  • the second elastic member 2234 is also connected to the middle frame 24 , and the positioning hole 2235 is inserted into the positioning column 115 of the upper cover 11 to position and fix the second elastic member 2234 .
  • the first elastic member 2232 and the second elastic member 2234 are both flexible circuit boards, and the first elastic member 2232 and the second elastic member 2234 are electrically connected.
  • the magnetic circuit system 23 includes a magnetic yoke 231 fixedly connected to the extension arm 212 of the basin frame 211 , a main magnetic steel 232 and a plurality of auxiliary magnetic steels 233 arranged on the magnetic yoke 231 , and covered on the
  • the main pole core 234 on the main magnetic steel 232 , the upper clamping plate 234 connected with the extension arm 212 , and the magnetic yoke 231 are fixed to the lower cover 12 .
  • the plurality of secondary magnets 233 and the main magnet 232 are spaced apart to form the magnetic gap 235 .
  • the upper splint 234 includes an annular portion 2341 fixed to the basin frame 211 , a plurality of secondary pole cores 2342 disposed on the annular portion 2341 , and a plug-in portion 2343 , and the plug-in portion 2343 is inserted into the plug-in connection
  • the grooves 213 are used to fix the annular portion 2341 to the basin frame 21 , and the plurality of secondary pole cores 2342 are attached to one end of the plurality of secondary magnetic steels 233 away from the yoke 231 .
  • the yoke 231 includes a yoke body 2311 , a first engaging portion 2312 disposed on the edge of the yoke body 2311 , and a mounting slot 2313 disposed on the yoke body 2311 and passing through the first engaging portion 2312 .
  • the extension arm 212 is inserted into and fixed to the installation slot 2313 , so that the yoke body 2311 and the basin frame body 211 are fixedly connected together.
  • the breathable spacer 30 includes a cover body 32 , a first fixing portion 31 and a second engaging portion 34 extending from both ends of the cover body 32 , surrounded by the first fixing portion 31 and the cover body 32 .
  • a socket hole 33 and an escape hole 35 provided on the first fixing portion 31 are formed together.
  • the cover body 32 is disposed around the periphery of the sounding unit 20 and completely covers the communicating portion 26 .
  • the first fixing portion 31 is bent and extends horizontally from the end of the cover body 32 away from the second engaging portion 254 in the direction away from the socket hole 33
  • the second engaging portion 254 is One end of the cover body 32 away from the first fixing portion 31 is bent into the socket hole 33 and extends horizontally.
  • the first fixing portion 31 is fixed to an end of the second elastic member 2234 away from the middle frame 24 , and is connected to the basin frame body 211 through the second elastic member 2234 and the middle frame 24 .
  • the avoidance hole 35 corresponds to the second elastic member 2234 of the elastic support assembly 223 . Specifically, the avoidance hole 35 is directly opposite to the pad 2236 of the second elastic member 2234 .
  • the cover 32 is sleeved on the yoke body 2311 to accommodate the yoke body 2311 in the socket hole 33 , and the cover 32 is sandwiched between the yoke body 2311 and the yoke body 2311 .
  • the second engaging portion 254 is engaged with the first engaging portion 2312 so that the yoke body 2311 can pass through the mounting hole of the upper cover 12 123 exposed.
  • the first engaging portion 2312 is a stepped structure disposed on the edge of the yoke body 2311, and the second engaging portion 254 presses the first engaging portion 2312, thereby connecting the magnetic The edge of the yoke body 2311 is closed.
  • the ventilating spacer of the speaker box provided by the present invention and the sound-generating unit together divide the accommodation space into a front cavity and a rear cavity, the sound-generating unit has an inner cavity, and the basin frame and the side of the magnetic yoke close to the rear cavity are spaced to form a communicating portion,
  • the ventilating spacer is arranged around the periphery of the sound-emitting unit and completely covers the communication part.
  • the inner cavity is connected with the back cavity through the communicating part and the ventilating spacer in turn.
  • the back cavity is filled with sound-absorbing particles, and the ventilating spacer seals the sound-absorbing particles in the back cavity.
  • the above structure makes the rear cavity filled with sound-absorbing particles as virtual sound cavities, which effectively improves the low-frequency acoustic performance of the speaker box; because the ventilation isolator is wound around and fixed to the sound-emitting monomer, the volume of the rear cavity is greatly increased, thereby increasing the volume of the rear cavity.
  • the filling efficiency of the sound-absorbing particles in the rear cavity is effectively improved.
  • the magnetic yoke includes a magnetic yoke body and a first engaging portion arranged at the edge of the magnetic yoke body, and the breathable spacer includes a cover body and a first fixing portion and a second fixing portion extending from both ends of the cover body.
  • the engaging part is connected with the basin frame
  • the cover body is arranged around the periphery of the sounding unit and completely covers the communicating part
  • the cover body is sleeved and closely attached to the A magnetic yoke
  • the second engaging portion is engaged with the first engaging portion so that the yoke body is exposed from the mounting hole. Effectively achieves a strong connection between the breathable spacer, the sound-generating unit and the housing.

Abstract

本发明提供了一种扬声器箱，其包括具有收容空间的外壳、收容于所述外壳的所述收容空间内的发声单体和收容于所述收容空间内并罩设于所述发声单体的透气隔离件；所述外壳包括上盖和下盖，所述发声单体包括具有磁轭的磁路系统，所述下盖包括底壁、设于所述底壁上的安装孔以及围合形成所述安装孔的孔壁，磁轭包括磁轭本体和设于磁轭本体边缘的第一卡合部，磁轭本体安装于安装孔并外露于收容空间，透气隔离件包括罩体和自罩体的一端延伸而出的第二卡合部，罩体套设并紧贴于磁轭本体，第二卡合部与第一卡合部卡接以使磁轭本体自安装孔中露出。上述扬声器箱的透气隔离件、发声单体和下盖的封装方式形成全灌装设计，有效的利用了所述后腔的体积。

Description

扬声器箱 技术领域
本发明涉及声电领域，尤其涉及一种扬声器箱。
 背景技术
随着移动互联网时代的到来，智能移动设备的数量不断上升。而在众多移动设备之中，手机无疑是最常见、最便携的移动终端设备。目前，手机的功能极其多样，其中之一便是高品质的音乐功能，因此，用于播放声音的扬声器箱被大量应用到现在的智能移动设备之中。
相关技术的扬声器箱包括具有收容空间的外壳和收容于外壳内的发声单体，所述发声单体将所述收容空间分隔成前腔和后腔。相关技术的所述扬声器箱还包括设置在后腔内并与发声单体相隔的挡墙和设置在挡墙上的透气件。所述挡墙和透气件配合将后腔分隔出独立空间用于填充吸音颗粒。所述挡墙和所述插板占用了所述后腔的空间，使得所述后腔的体积利用率低，进而无法进一步提高所述扬声器箱的声学性能。
因此，必须提供一种新的扬声器箱以解决上述技术问题。
 技术问题
本发明的目的在于提供一种提高后腔利用率的扬声器箱。
 技术解决方案
为了达到上述目的，本发明提供了一种扬声器箱，其包括具有收容空间的外壳、收容于所述外壳的所述收容空间内的发声单体和收容于所述收容空间内并罩设于所述发声单体的透气隔离件，所述发声单体和所述透气隔离件共同将所述收容空间分隔成前腔和后腔；所述外壳包括上盖和下盖，所述发声单体固定于所述下盖，其包括固定于外壳的盆架、固定于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统，所述磁路系统包括固定于所述下盖的磁轭；所述下盖包括底壁、设于所述底壁上的安装孔以及围合形成所述安装孔的孔壁，所述磁轭安装于所述安装孔并外露于所述收容空间，所述后腔内填充吸音颗粒，所述透气隔离件将所述吸音颗粒封装于所述后腔内，其中，所述发声单体具有内腔，所述盆架与所述磁轭间隔形成连通部，所述内腔依次经所述连通部及所述透气隔离件与所述后腔连通，所述磁轭包括磁轭本体和设于所述磁轭本体边缘的第一卡合部，所述透气隔离件包括罩体和自所述罩体的两端延伸的第一固定部和第二卡合部，所述第一固定部与所述盆架连接，所述罩体环绕所述发声单体周侧设置且完全覆盖所述连通部，所述罩体套设并紧贴于所述磁轭，所述第二卡合部与所述第一卡合部卡接以使所述磁轭本体自所述安装孔中露出。
优选地，所述透气隔离件还包括由所述第一固定部和所述罩体围合形成套接孔，所述磁轭本体收容于所述套接孔内，所述第一固定部自所述罩体远离所述第二卡合部的一端朝远离所述套接孔的方向弯折并水平延伸。
优选地，所述第一卡合部为设于所述磁轭本体边缘的阶梯结构，所述第二卡合部自所述罩体远离所述第一固定部的一端朝所述套接孔内弯折并水平延伸，所述第二卡合部抵压所述第一卡合部。
优选地，所述透气隔离件还包括设于所述第一固定部上的避让孔，所述振动系统包括固定于所述盆架的振膜、驱动所述振膜振动发声的音圈以及固定于所述盆架并与所述振膜相对且间隔设置的弹性支撑组件，所述避让孔与所述弹性支撑组件对应。
优选地，所述弹性支撑组件包括连接所述振膜和所述音圈的连接架、连接所述连接架和所述盆架的第一弹性件以及与所述第一弹性件远离所述连接架的一端连接的辅助膜和第二弹性件，所述避让孔与所述第二弹性件对应。
优选地，所述第一弹性件和所述第二弹性件均为柔性电路板，所述第一弹性件与所述第二弹性件电性连接，所述第二弹性件设有与所述避让孔正对的焊盘。
优选地，所述盆架包括盆架体、自所述盆架体靠近所述磁路系统的一端伸出的多个间隔设置的延伸臂、以及设于所述延伸臂靠近所述盆架体一端上的插接槽，所述磁轭还包括设于所述磁轭本体并贯通所述第一卡合部的安装槽，所述延伸臂插入并固定于所述安装槽，以使所述磁轭本体与所述盆架体固定连接在一起。
 有益效果
与相关技术相比，本发明提供的上述扬声器箱的透气隔离件与发声单体共同将收容空间分隔成前腔和后腔，发声单体具有内腔，盆架与磁轭靠近后腔的一侧间隔形成连通部，透气隔离件环绕发声单体周侧设置且完全覆盖连通部，内腔依次经连通部及透气隔离件与后腔连通，后腔内填充吸音颗粒，透气隔离件将吸音颗粒封装于后腔内，上述结构则使得后腔内填充吸音颗粒后全部作为虚拟声腔，有效提高了扬声器箱的低频声学性能；因透气隔离件绕设固定于发声单体，极大程度的提高了后腔的体积，从而有效提高了后腔内的吸音颗粒的灌装效率。所述磁轭包括磁轭本体和设于所述磁轭本体边缘的第一卡合部，所述透气隔离件包括罩体和自所述罩体的两端延伸的第一固定部和第二卡合部，所述第一固定部与所述盆架连接，所述罩体环绕所述发声单体周侧设置且完全覆盖所述连通部，所述罩体套设并紧贴于所述磁轭，所述第二卡合部与所述第一卡合部卡接以使所述磁轭本体自所述安装孔中露出。有效实现透气隔离件、发声单体和外壳之间的稳固连接。所述扬声器箱的透气隔离件、发声单体和下盖的封装方式形成全灌装设计，有效的利用了所述后腔的体积。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中。
图1为本发明扬声器箱的分解图。
图2为图1所示的所述发声单体的爆炸结构示意图。
图3为图2所示的所述发声单体在另一角度的示意图。
图4为图1所示的透气隔离件的立体结构示意图。
图5为图1所示的扬声器箱组装后的立体结构示意图。
图6为图5所示扬声器箱在另一角度的结构示意图。
图7为图6所示扬声器箱沿A-A方向的剖面结构示意图。
图8为图7所示扬声器箱在B处的放大结构示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
请同时参阅图1-8，根据本发明提供的扬声器箱100，其包括具有收容空间40的外壳10、收容于所述外壳10的所述收容空间40内的发声单体20、收容于所述收容空间40内并罩设于所述发声单体20的透气隔离件30以及密封件50，所述发声单体20和所述透气隔离件30共同将所述收容空间40分隔成前腔41和后腔42，所述外壳10设有与所述后腔42连通的填充孔125，所述扬声器箱100通过所述填充孔125向所述后腔42内填充吸音颗粒60，所述透气隔离件30将所述吸音颗粒60封装于所述后腔42内，所述密封件50用于封闭所述填充孔125。
具体地，所述外壳10包括上盖11和下盖12，所述上盖11包括顶壁111、自所述顶壁111边沿弯折延伸的第一侧壁112、自所述顶壁111凸伸出的环形挡墙113、自所述第一侧壁112朝远离所述环形挡墙113方向凸伸出的凸出壁114以及设于所述凸出壁114上的定位柱115。所述下盖12包括底壁121、自所述底壁121边沿弯折延伸的第二侧壁122、设于所述底壁121上的安装孔123以及围合形成所述安装孔123的孔壁124，所述填充孔125设于所述底壁121。所述第一侧壁112和所述底壁121的所述第二侧壁122接合以使所述上盖11和所述下盖12组合构成所述收容空间40，所述发声单体20的一端安装于所述安装孔123，另一端安装于所述环形挡墙113内。所述发声单体20与所述上盖11间隔设置形成所述前腔41，所述发声单体20、所述上盖11以及所述下盖12围合形成所述后腔42。
进一步地，所述发声单体20包括盆架21以及分别固定于所述盆架21的振动系统22、具有磁间隙235并固定于所述盆架21上的磁路系统23以及套设并固定于所述盆架21的中框24，所述振动系统22和所述磁路系统23围合形成内腔25，所述盆架21与所述磁路系统23间隔形成连通部26，所述透气隔离件30罩设于所述磁路系统23并与所述中框24连接，所述内腔25依次经所述连通部26及所述透气隔离件30与所述后腔42连通，。其中，所述振动系统22安装于所述环形挡墙113并与所述顶壁111间隔设置以形成所述前腔41，所述磁路系统30安装于所述安装孔123内并自所述安装孔123中露出。
具体地，所述盆架21用于支撑所述振动系统22和所述磁路系统23，其包括盆架体211、自所述盆架体211靠近所述磁路系统23的一端伸出的多个间隔设置的延伸臂212、以及设于所述延伸臂212靠近所述盆架体211一端上的插接槽213。所述振动系统11与所述盆架体211连接，所述中框24固定于所述盆架体211，所述磁路系统23与所述延伸臂212连接，所述透气隔离件30包围所述延伸臂212和所述磁路系统23。
所述振动系统22包括固定于所述盆架体211上的振膜221、插设于所述磁间隙235以驱动所述振膜221振动发声的音圈222以及固定于所述盆架体211并与所述振膜221相对且间隔设置的弹性支撑件组件23。所述振膜221包括折环2211、自所述折环2211的两侧延伸出的第二固定部2212和振动部2213以及固定于所述振动部2213的球顶2214，所述第二固定部2212与所述盆架体211连接。所述弹性支撑组件223包括连接所述球顶2214远离所述振动部2213的一端和所述音圈222的连接架2231、连接所述连接架2231和所述盆架体211的第一弹性件2232以及与所述第一弹性件2232远离所述连接架2231的一端连接的辅助膜2233和第二弹性件2234以及设于所述第二弹性件2234上的定位孔2235和焊盘2236，所述第二弹性件2234还与所述中框24连接，所述定位孔2235卡入所述上盖11的定位柱115以定位并固定所述第二弹性件2234。可选地，所述第一弹性件2232和所述第二弹性件2234均为柔性电路板，所述第一弹性件2232与所述第二弹性件2234电性连接。
所述磁路系统23包括与所述盆架211的所述延伸臂212固定连接的磁轭231、设于所述磁轭231上的主磁钢232和多个副磁钢233、盖设于所述主磁钢232上的主极芯234、与所述延伸臂212连接的上夹板234，所述磁轭231固定于所述下盖12。所述多个副磁钢233与所述主磁钢232间隔设置形成所述磁间隙235。所述上夹板234包括固定于所述盆架211的环形部2341、设于所述环形部2341上的多个副极芯2342和插接部2343，所述插接部2343插入所述插接槽213以将所述环形部2341固定于所述盆架21，所述多个副极芯2342与所述多个副磁钢233远离所述磁轭231的一端贴合。所述磁轭231包括磁轭本体2311、设于所述磁轭本体2311边缘的第一卡合部2312以及设于所述磁轭本体2311并贯通所述第一卡合部2312的安装槽2313，所述延伸臂212插入并固定于所述安装槽2313，以使所述磁轭本体2311与所述盆架体211固定连接在一起。
所述透气隔离件30包括罩体32、自所述罩体32的两端延伸的第一固定部31和第二卡合部34、由所述第一固定部31和所述罩体32围合形成套接孔33以及设于所述第一固定部31上的避让孔35。所述罩体32环绕所述发声单体20周侧设置且完全覆盖所述连通部26，所述罩体32套设并紧贴于所述磁轭231的磁轭本体2311。所述第一固定部31自所述罩体32远离所述第二卡合部254的一端朝远离所述套接孔33的方向弯折并水平延伸，所述第二卡合部254自所述罩体32远离所述第一固定部31的一端朝所述套接孔33内弯折并水平延伸。所述第一固定部31固定于所述第二弹性件2234远离所述中框24的一端，并通过所述第二弹性件2234和所述中框24与所述盆架体211连接。所述避让孔35与所述弹性支撑组件223的所述第二弹性件2234对应，具体地，所述避让孔35与所述第二弹性件2234的所述焊盘2236正对。
所述罩体32套设于所述磁轭本体2311以将所述磁轭本体2311收容于所述套接孔33内，同时所述罩体32夹设于所述磁轭本体2311与所述下盖12的所述孔壁124之间，所述第二卡合部254与所述第一卡合部2312卡接以使所述磁轭本体2311自所述上盖12的所述安装孔123中露出。可选地，所述第一卡合部2312为设于所述磁轭本体2311边缘的阶梯结构，所述第二卡合部254抵压所述第一卡合部2312，从而将所述磁轭本体2311的边缘封闭。
本发明提供的上述扬声器箱的透气隔离件与发声单体共同将收容空间分隔成前腔和后腔，发声单体具有内腔，盆架与磁轭靠近后腔的一侧间隔形成连通部，透气隔离件环绕发声单体周侧设置且完全覆盖连通部，内腔依次经连通部及透气隔离件与后腔连通，后腔内填充吸音颗粒，透气隔离件将吸音颗粒封装于后腔内，上述结构则使得后腔内填充吸音颗粒后全部作为虚拟声腔，有效提高了扬声器箱的低频声学性能；因透气隔离件绕设固定于发声单体，极大程度的提高了后腔的体积，从而有效提高了后腔内的吸音颗粒的灌装效率。所述磁轭包括磁轭本体和设于所述磁轭本体边缘的第一卡合部，所述透气隔离件包括罩体和自所述罩体的两端延伸的第一固定部和第二卡合部，所述第一固定部与所述盆架连接，所述罩体环绕所述发声单体周侧设置且完全覆盖所述连通部，所述罩体套设并紧贴于所述磁轭，所述第二卡合部与所述第一卡合部卡接以使所述磁轭本体自所述安装孔中露出。有效实现透气隔离件、发声单体和外壳之间的稳固连接。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (7)

  1. 一种扬声器箱，其包括具有收容空间的外壳、收容于所述外壳的所述收容空间内的发声单体和收容于所述收容空间内并罩设于所述发声单体的透气隔离件，所述发声单体和所述透气隔离件共同将所述收容空间分隔成前腔和后腔；所述外壳包括上盖和下盖，所述发声单体固定于所述下盖，其包括固定于外壳的盆架、固定于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统，所述磁路系统包括固定于所述下盖的磁轭；所述下盖包括底壁、设于所述底壁上的安装孔以及围合形成所述安装孔的孔壁，所述磁轭安装于所述安装孔并外露于所述收容空间，所述后腔内填充吸音颗粒，所述透气隔离件将所述吸音颗粒封装于所述后腔内，其特征在于，所述发声单体具有内腔，所述盆架与所述磁轭间隔形成连通部，所述内腔依次经所述连通部及所述透气隔离件与所述后腔连通，所述磁轭包括磁轭本体和设于所述磁轭本体边缘的第一卡合部，所述透气隔离件包括罩体和自所述罩体的两端延伸的第一固定部和第二卡合部，所述第一固定部与所述盆架连接，所述罩体环绕所述发声单体周侧设置且完全覆盖所述连通部，所述罩体套设并紧贴于所述磁轭，所述第二卡合部与所述第一卡合部卡接以使所述磁轭本体自所述安装孔中露出。
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述透气隔离件还包括由所述第一固定部和所述罩体围合形成套接孔，所述磁轭本体收容于所述套接孔内，所述第一固定部自所述罩体远离所述第二卡合部的一端朝远离所述套接孔的方向弯折并水平延伸。
  3. 根据权利要求1或2所述的扬声器箱，其特征在于，所述第一卡合部为设于所述磁轭本体边缘的阶梯结构，所述第二卡合部自所述罩体远离所述第一固定部的一端朝所述套接孔内弯折并水平延伸，所述第二卡合部抵压所述第一卡合部。
  4. 根据权利要求1所述的扬声器箱，其特征在于，所述透气隔离件还包括设于所述第一固定部上的避让孔，所述振动系统包括固定于所述盆架的振膜、驱动所述振膜振动发声的音圈以及固定于所述盆架并与所述振膜相对且间隔设置的弹性支撑组件，所述避让孔与所述弹性支撑组件对应。
  5. 根据权利要求4所述的扬声器箱，其特征在于，所述弹性支撑组件包括连接所述振膜和所述音圈的连接架、连接所述连接架和所述盆架的第一弹性件以及与所述第一弹性件远离所述连接架的一端连接的辅助膜和第二弹性件，所述避让孔与所述第二弹性件对应。
  6. 根据权利要求5所述的扬声器箱，所述第一弹性件和所述第二弹性件均为柔性电路板，所述第一弹性件与所述第二弹性件电性连接，所述第二弹性件设有与所述避让孔正对的焊盘。
  7. 根据权利要求1所述的扬声器箱，所述盆架包括盆架体、自所述盆架体靠近所述磁路系统的一端伸出的多个间隔设置的延伸臂、以及设于所述延伸臂靠近所述盆架体一端上的插接槽，所述磁轭还包括设于所述磁轭本体并贯通所述第一卡合部的安装槽，所述延伸臂插入并固定于所述安装槽，以使所述磁轭本体与所述盆架体固定连接在一起。
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