WO2021138952A1 - 扬声器箱 - Google Patents

扬声器箱 Download PDF

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Publication number
WO2021138952A1
WO2021138952A1 PCT/CN2020/074333 CN2020074333W WO2021138952A1 WO 2021138952 A1 WO2021138952 A1 WO 2021138952A1 CN 2020074333 W CN2020074333 W CN 2020074333W WO 2021138952 A1 WO2021138952 A1 WO 2021138952A1
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WO
WIPO (PCT)
Prior art keywords
fixed
sound
lower cover
supporting wall
air
Prior art date
Application number
PCT/CN2020/074333
Other languages
English (en)
French (fr)
Inventor
吴军
魏威
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.)
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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 WO2021138952A1 publication Critical patent/WO2021138952A1/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 utility model relates to the technical field of an electro-acoustic conversion device, in particular to a speaker box.
  • the speaker box of the related art includes an upper cover, a lower cover assembled with the upper cover to form an accommodating space, a sounding monomer and a ventilating partition accommodated in the accommodating space; the sounding monomer and the upper cover Enclosed into a front cavity, the sounding monomer, the upper cover and the lower cover jointly enclose a rear cavity, a barrier wall is formed in the rear cavity, and the air-permeable spacer is attached to the barrier wall and is connected to the barrier wall.
  • the blocking wall jointly partitions the rear cavity into a first rear cavity and a second rear cavity that are in air communication with each other, and the sound-producing monomer part is located in the first rear cavity.
  • the barrier wall and the air-permeable partition encapsulate the sound-absorbing particles in the second back cavity to form a DBASS space that serves as a virtual sound cavity.
  • the back cavity cannot be used efficiently due to the design limitation of the barrier wall structure. , Thereby limiting the low-frequency acoustic performance of the speaker box.
  • the purpose of the utility model is to provide a loudspeaker box with high filling efficiency and good low-frequency acoustic performance.
  • the present invention provides a speaker box, which includes a lower cover, an upper cover that is covered on the lower cover and jointly encloses an accommodation space, a sounding unit accommodated in the accommodation space, and an air-permeable isolation Components;
  • the upper cover includes an upper cover body covering the lower cover and a ring-shaped support wall protruding from the upper cover body to the lower cover;
  • the air-permeable isolation assembly is fixed to the
  • the supporting wall is located between the sounding monomer and the lower cover, the air-permeable isolation component and the sounding monomer jointly divide the containing space into a front cavity and a rear cavity, and the sounding monomer has an inner cavity Cavity, the side of the sound-producing monomer close to the rear cavity is provided with a leakage part communicating with the inner cavity
  • the air-permeable isolation assembly includes a ring-shaped bracket and an air-permeable spacer, and the bracket is stacked and fixed to The supporting wall is arranged around the sound emitting unit, the air-per
  • the air-permeable isolator includes a body that is arranged directly opposite to the sound-producing monomer, a ring-shaped extension portion that is bent and extended from the periphery of the body in a direction close to the upper cover, and is formed by the extension portion A fixing portion extending away from the main body is bent outward, and the fixing portion is fixed to an end of the bracket away from the supporting wall.
  • the speaker box further includes a conductive terminal, one end of the conductive terminal is fixed and electrically connected to the sound emitting unit, and the other end extends to the outside of the receiving space through the rear cavity, and the bracket is provided close to it.
  • One side of the supporting wall is recessed in the direction of the lower cover to form a relief groove, and the conductive terminal extends to the rear cavity through the relief groove.
  • the periphery of the vocal unit is fixed to the supporting wall by glue
  • the bracket is fixed to the supporting wall by glue
  • the sound-emitting unit includes a vibration system, a basin frame supporting the vibration system, and a magnetic circuit system fixed to the basin frame
  • the magnetic circuit system includes a magnetic bowl fixed to the basin frame and The magnet part of the magnetic bowl, the magnet part has a magnetic gap
  • the pot frame is fixed to the supporting wall
  • the vibration system includes a diaphragm fixed to the pot frame on the side away from the magnetic bowl, and The diaphragm is fixed and extends to the voice coil of the magnetic gap, and the leakage part is opened in the magnetic bowl.
  • the magnetic bowl includes a bottom plate directly opposite to the vibration system and side plates bent and extended from opposite sides of the bottom plate toward the basin frame, and the leakage portion is formed on two adjacent sides. Between the boards.
  • the vibration system further includes a centering support piece fixed to the side of the voice coil away from the diaphragm, and the centering support piece is fixed to the basin frame on the side away from the voice coil.
  • the centering support piece is located between the two adjacent side plates and is directly opposite to the leakage part.
  • the supporting wall includes a first supporting wall protruding from the upper cover body in the direction of the lower cover and a second supporting wall extending from the outer periphery of the first supporting wall in the direction of the lower cover.
  • the sound-emitting unit is supported and fixed to an end of the first support wall close to the lower cover, and the bracket is supported and fixed to an end of the second support wall close to the lower cover.
  • the diaphragm includes a vibrating portion and a fixing portion extending from the periphery of the vibrating portion and fixed to the basin frame, and the fixing portion includes being sandwiched between the basin frame and the first supporting wall The edge portion and an extension portion bent and extended from the edge portion toward the basin frame, and the extension portion is sandwiched between the basin frame and the second supporting wall.
  • the orthographic projection of the supporting wall on the body at least partially falls into the body.
  • the main body abuts against the sound emitting monomer.
  • the speaker box of the present invention supports and fixes the sounding monomer and the air-permeable isolation component on the supporting wall, and the air-permeable isolation component is located between the sounding monomer and the lower cover.
  • the accommodating space is divided into a front cavity and a back cavity.
  • the sound emitting monomer has an inner cavity.
  • a side of the sound emitting monomer close to the rear cavity is provided with a leakage part communicating with the inner cavity.
  • the inner cavity passes through The leakage part and the air-permeable spacer communicate with the rear cavity.
  • the above-mentioned structure enables the rear cavity of the air-permeable isolating component away from the sound-producing monomer to be filled with sound-absorbing particles as a virtual sound cavity, which greatly improves the performance of the rear cavity.
  • the filling efficiency of sound-absorbing particles effectively improves the low-frequency acoustic performance of the speaker box.
  • Figure 1 is a schematic diagram of the three-dimensional structure of the speaker box of the present invention.
  • Figure 2 is an exploded schematic diagram of a part of the three-dimensional structure of the speaker box of the present invention.
  • Figure 3 is a schematic diagram of the assembly structure of the speaker box of the present invention without the lower cover;
  • Figure 4 is a cross-sectional view taken along line A-A in Figure 1;
  • Fig. 5 is an enlarged view of the part B shown in Fig. 4.
  • the present invention provides a speaker box 100, which includes a lower cover 1, an upper cover 2, a sound-producing monomer 3, a ventilating isolation component 4, and a conductive terminal 5.
  • the lower cover 1 is disposed on the upper cover 2 and jointly encloses a receiving space 10.
  • the sound emitting unit 3 is received in the receiving space 10 and supported by the upper cover 2.
  • the upper cover 2 includes an upper cover body 21 covering the lower cover 1, an annular support wall 22 projecting from the upper cover body 21 in the direction of the lower cover, and The sound guide channel 23 of the upper cover body 21.
  • the supporting wall 22 includes a first supporting wall 221 protruding from the upper cover body 21 toward the lower cover 1, and a first supporting wall 221 extending from the outer periphery of the first supporting wall 221 toward the lower cover 1.
  • the second supporting wall 222 extending in the direction of the cover 1, that is, the first supporting wall 221 and the second supporting wall 222 form a supporting step structure.
  • the sounding monomer 3 is supported and fixed to the supporting wall 22.
  • the periphery of the sound emitting monomer 3 is fixed to the supporting wall 22 by glue.
  • the air-permeable isolation component 4 is fixed to the supporting wall 22 and is located between the sound-producing monomer 3 and the lower cover 1, and the air-permeable isolation component 4 and the sound-producing monomer 3 jointly connect the containing space 10 It is divided into a front chamber 101 and a rear chamber 102.
  • the front cavity 101 is used for sound generation
  • the rear cavity 102 is filled with sound-absorbing particles 7
  • the air-permeable isolation component 4 encapsulates the sound-absorbing particles 7 in the rear cavity 102 to form a DBASS virtual sound cavity for further improving low frequency Acoustic performance.
  • the sound-producing monomer 3 is supported and fixed to an end of the first support wall 221 close to the lower cover 1, that is, supported by the support formed by the first support wall 221 and the second support wall 222
  • the sounding monomer 3 is glued on the periphery to form a fixation.
  • the sounding monomer 3 has an inner cavity 30, and a side of the sounding monomer 3 close to the rear cavity 102 is provided with a leakage portion 300 communicating with the inner cavity 30, and the inner cavity 30 passes through the leakage portion in turn.
  • the portion 300 and the air-permeable isolation component 4 are in communication with the rear cavity 102.
  • the sound emitting unit 3 includes a vibration system 31, a basin frame 32 supporting the vibration system 31, and a magnetic circuit system 33 fixed to the basin frame 32.
  • the magnetic circuit system 33 includes a magnetic bowl 331 fixed to the basin frame 32 and a magnet portion 332 installed on the magnetic bowl 331, and the magnet portion 332 has a magnetic gap 330.
  • the leakage portion 300 is opened in the magnetic bowl 331.
  • the magnetic bowl 331 includes a bottom plate 3311 directly opposite to the vibration system 31 and side plates 3312 bent and extended from opposite sides of the bottom plate 3311 toward the basin frame 32, and the leakage portion 300 It is formed between two adjacent side plates 3312.
  • the basin frame 32 is fixed to the supporting wall 22, specifically, the basin frame 32 is fixed to the first supporting wall 221.
  • the vibration system 31 includes a diaphragm 311 fixed to the side of the basin frame 32 away from the magnetic bowl 331, a voice coil 312 fixed to the diaphragm 311 and extending to the magnetic gap 330, and a voice coil 312 fixed to the voice coil 312 away from it.
  • the diaphragm 311 is spaced from the upper cover body 21 to form a front acoustic cavity 6, and the sound guide channel 23 connects the front acoustic cavity 6 with the outside and forms the front cavity 101 together for forming a side sounding structure.
  • the sound-producing monomer 3, the air-permeable isolation assembly 4, the upper cover 2 and the lower cover 1 jointly enclose the rear cavity 102 for improving low-frequency acoustic performance.
  • the diaphragm 311 includes a vibrating portion 3111 and a fixing portion 3112 extending from the periphery of the vibrating portion 3111 and fixed to the basin frame 32
  • the fixing portion 3112 includes a fixing portion 3112 sandwiched between the basin frame 32 and The edge portion 31121 between the first supporting walls 221 and the extension portion 31122 bent and extended from the edge portion 31121 toward the basin frame 32, the extension portion 31122 is sandwiched between the basin frame 32 and the basin frame 32. Between the second supporting wall 222.
  • the voice coil 312 drives the diaphragm 311 to vibrate and produce sound.
  • the centering support piece 313 is fixed to the basin frame 32 on the side away from the voice coil 312. In this embodiment, the centering support piece 313 is located between the two adjacent side plates 3312 and is directly opposite to the leakage portion 300.
  • the air-permeable isolation assembly 4 includes a ring-shaped bracket 41 and an air-permeable isolation member 42.
  • the bracket 41 is stacked and fixed on the supporting wall 22 and arranged around the sound emitting unit 3.
  • the bracket 41 is fixed to the supporting wall 22 by glue.
  • the bracket 41 is supported and fixed to an end of the second support wall 222 close to the lower cover 1.
  • the glue fixed to the second supporting wall 222 of the bracket 41 and the glue fixed to the first supporting wall 221 of the sound-producing monomer 3 are connected as a whole to form a solidification.
  • the air-permeable spacer 42 is completely covered on the sound emitting monomer 3 and is spaced apart from the lower cover 1, and the periphery of the air-permeable spacer 42 is fixed to the bracket 41.
  • the inner cavity 30 communicates with the rear cavity 102 via the leaking portion 300 and the air-permeable spacer 43 in sequence.
  • the bracket 41 and the air-permeable spacer 42 make the air-permeable spacer element 4 form a three-dimensional structure, so that the rear cavity 102 on the side of the air-permeable spacer element 4 away from the sound-producing monomer 3 is filled with sound-absorbing particles After 7 are all used as a DBASS virtual sound cavity, which effectively improves the low-frequency acoustic performance of the speaker box 100; because the breathable isolation component 4 is placed on the sounding monomer 3, the volume of the rear cavity 102 is greatly increased, thereby effectively improving the rear cavity The filling efficiency of sound-absorbing particles in 102.
  • the air-permeable isolator 42 includes a body 421 that is arranged directly opposite to the sound-producing monomer 3, and a ring-shaped extension 422 that is bent and extended from the periphery of the body 421 in the direction close to the upper cover 2. And a fixing portion 423 bent and extended from one end of the extension portion 422 away from the main body 421 outwardly.
  • the fixing portion 423 is fixed to an end of the bracket 41 away from the supporting wall 22.
  • the periphery of the main body 421 and the supporting wall 22 are arranged directly opposite to each other, that is, the sound emitting monomer 3 is completely covered.
  • the main body 421 abuts against the sound emitting monomer 3, and the structure is arranged to make the volume of the rear cavity 102 as large as possible, that is, the effective utilization rate of the rear cavity 102 is greatly improved, and the filling of the rear cavity 102 is improved. effectiveness.
  • the conductive terminal 5 is fixed and electrically connected with the sounding monomer 3 for introducing external electrical signals to the sounding monomer 3.
  • One end of the conductive terminal 5 is fixed and electrically connected to the sound emitting unit 3, and the other end extends to the outside of the receiving space 10 through the rear cavity 30.
  • the bracket 41 is provided with a relief groove 411 formed by a side of the support wall 22 that is recessed in the direction of the lower cover 1, and the conductive terminal 5 extends through the relief groove 411 To the rear cavity 102.
  • the relief groove 411 needs to form a seal to prevent the sound-absorbing particles 7 from entering the inner cavity 30 and affecting the acoustic performance.
  • the speaker box of the present invention supports and fixes the sounding monomer and the air-permeable isolation component on the supporting wall, and the air-permeable isolation component is located between the sounding monomer and the lower cover.
  • the accommodating space is divided into a front cavity and a rear cavity.
  • the sound emitting monomer has an inner cavity, and a side of the sound emitting monomer close to the rear cavity is provided with a leakage part communicating with the inner cavity, and the inner cavity passes through The leakage part and the air-permeable spacer communicate with the rear cavity.
  • the above-mentioned structure enables the rear cavity of the air-permeable isolating component away from the sound-producing monomer to be filled with sound-absorbing particles as a virtual sound cavity, which greatly improves the performance of the rear cavity.
  • the filling efficiency of sound-absorbing particles effectively improves the low-frequency acoustic performance of the speaker box.

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

Abstract

本实用新型提供了一种扬声器箱，包括下盖、与下盖形成收容空间的上盖、发声单体以及透气隔离组件；上盖设有支撑壁，发声单体支撑固定于支撑壁，透气隔离组件固定于支撑壁且位于发声单体与所述下盖之间，透气隔离组件与发声单体共同将收容空间分隔成前腔和后腔，发声单体具有内腔和与内腔连通的泄漏部；透气隔离组件包括呈环状的支架和透气隔离件，支架叠设固定于支撑壁且环绕发声单体设置，透气隔离件固定于支架并完全盖设于发声单体并与所述下盖间隔设置，所述内腔依次经泄漏部及透气隔离件与后腔连通；后腔内填充吸音颗粒，透气隔离组件将吸音颗粒封装于后腔内。与相关技术相比，本实用新型的扬声器箱灌装效率高，低频声学性能优。

Description

扬声器箱 技术领域
本实用新型涉及一种电声转换装置技术领域，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。
相关技术的所述扬声器箱包括上盖、与该上盖组配形成一收容空间的下盖、收容于该收容空间内的发声单体和透气隔离件；所述发声单体与所述上盖围成前腔，所述发声单体、所述上盖及所述下盖共同围成后腔，述述后腔内形成挡壁，所述透气隔离件贴合于所述挡壁并与所述挡壁共同将所述后腔分隔为相互空气连通的第一后腔和第二后腔，所述发声单体部分位于所述第一后腔。
 技术问题
然而，相关技术的扬声器箱中，挡壁与透气隔离件将吸音颗粒封装于第二后腔内以形成充当虚拟声腔的DBASS空间，但因该挡壁结构的设计限制而不能高效的利用后腔，从而限制了扬声器箱的低频声学性能。
因此，实有必须提供一种新的扬声器箱解决上述技术问题。
 技术解决方案
本实用新型的目的在于提供一种灌装效率高、低频声学性能好的扬声器箱。
为了达到上述目的，本实用新型提供了一种扬声器箱，包括下盖、盖设于所述下盖并共同围成收容空间的上盖、收容于所述收容空间内的发声单体以及透气隔离组件；所述上盖包括盖设于所述下盖的上盖本体和由所述上盖本体向所述下盖方向凸出延伸的呈环状的支撑壁；所述透气隔离组件固定于所述支撑壁且位于所述发声单体与所述下盖之间，所述透气隔离组件与所述发声单体共同将所述收容空间分隔成前腔和后腔，所述发声单体具有内腔，所述发声单体靠近所述后腔的一侧开设有与所述内腔连通的泄漏部，所述透气隔离组件包括呈环状的支架和透气隔离件，所述支架叠设固定于所述支撑壁且环绕所述发声单体设置，所述透气隔离件完全盖设于所述发声单体并与所述下盖间隔设置，且所述透气隔离件的周缘固定于所述支架，所述内腔依次经所述泄漏部及所述透气隔离件与所述后腔连通；所述后腔内填充吸音颗粒，所述透气隔离组件将所述吸音颗粒封装于所述后腔内。
优选的，所述透气隔离件包括与所述发声单体正对设置的本体、由所述本体的周缘向靠近所述上盖方向弯折延伸的呈环状的延伸部以及由所述延伸部远离所述本体的一端向外弯折延伸的固定部，所述固定部固定于所述支架远离所述支撑壁的一端。
优选的，所述扬声器箱还包括导电端子，所述导电端子一端固定电连接于所述发声单体，另一端经所述后腔延伸至所述收容空间外，所述支架设有由其靠近所述支撑壁的一侧向所述下盖方向凹陷形成的让位槽，所述导电端子经所述让位槽延伸至所述后腔。
优选的，所述发声单体的周缘通过胶水贴合固定于所述支撑壁，所述支架通过该胶水贴合固定于所述支撑壁。
优选的，所述发声单体包括振动***、支撑所述振动***的盆架以及与所述盆架固定的磁路***，所述磁路***包括固定于所述盆架的磁碗以及安装于所述磁碗的磁体部，所述磁体部具有磁间隙，所述盆架与所述支撑壁固定，所述振动***包括固定于所述盆架远离所述磁碗一侧的振膜以及与所述振膜固定并延伸至所述磁间隙的音圈，所述泄漏部开设于所述磁碗。
优选的，所述磁碗包括与所述振动***正对的底板以及自所述底板的相对两侧朝所述盆架弯折延伸的侧板，所述泄漏部形成于相邻两所述侧板之间。
优选的，所述振动***还包括固定于所述音圈远离所述振膜一侧的定心支片，所述定心支片远离所述音圈一侧与所述盆架固定，所述定心支片位于相邻两所述侧板之间并与所述泄漏部正对。
优选的，所述支撑壁包括由所述上盖本体向所述下盖方向凸出延伸的第一支撑壁以及由所述第一支撑壁的外周缘向所述下盖方向延伸的第二支撑壁，所述发声单体支撑固定于所述第一支撑壁靠近所述下盖的一端，所述支架支撑固定于所述第二支撑壁靠近所述下盖的一端。
优选的，所述振膜包括振动部及自所述振动部周缘延伸并与所述盆架固定的固定部，所述固定部包括夹设于所述盆架与所述第一支撑壁之间的边缘部以及自所述边缘部朝所述盆架方向弯折延伸的延伸部，所述延伸部夹设于所述盆架与所述第二支撑壁之间。
优选的，所述支撑壁在所述本体的正投影至少部分落入所述本体内。
优选的，所述本体抵接于所述发声单体。
 有益效果
与相关技术相比，本实用新型的扬声器箱将所述发声单体、透气隔离组件均支撑固定于所述支撑壁且透气隔离组件位于发声单体与下盖之间，二者共同将所述收容空间分隔成前腔和后腔，所述发声单体具有内腔，所述发声单体靠近所述后腔的一侧开设有与所述内腔连通的泄漏部，所述内腔依次经所述泄漏部及所述透气隔离件与所述后腔连通上述结构则使得透气隔离组件远离所述发声单体一侧的后腔可全部填充吸音颗粒作为虚拟声腔，极大程度提高后腔的吸音颗粒的灌装效率，有效提高了扬声器箱的低频声学性能。
 附图说明
为了更清楚地说明本实用新型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实用新型的一些实施例，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为本实用新型扬声器箱的立体结构示意图；
图2为本实用新型扬声器箱的部分立体结构分解示意图；
图3为本实用新型扬声器箱省去下盖后的装配结构示意图；
图4为沿图1中A-A线的剖示图；
图5为图4中B所示部分的放大图。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型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实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，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，都属于本实用新型保护的范围。
请同时参阅图1-5，本实用新型提供了一种扬声器箱100，包括下盖1、上盖2、发声单体3、透气隔离组件4以及导电端子5。所述下盖1设于所述上盖2并共同围成收容空间10。
所述发声单体3收容于所述收容空间10内并支撑于所述上盖2。
具体的，所述上盖2包括盖设于所述下盖1的上盖本体21、由所述上盖本体21向所述下盖方向凸出延伸的呈环状的支撑壁22以及形成于所述上盖本体21的导声通道23。
本实施方式中，所述支撑壁22包括由所述上盖本体21向所述下盖1方向凸出延伸的第一支撑壁221以及由所述第一支撑壁221的外周缘向所述下盖1方向延伸的第二支撑壁222，即所述第一支撑壁221与所述第二支撑壁222形成一支撑台阶结构。
所述发声单体3支撑固定于所述支撑壁22。本实施方式中，所述发声单体3的周缘通过胶水贴合固定于所述支撑壁22。
所述透气隔离组件4固定于所述支撑壁22且位于所述发声单体3与所述下盖1之间，所述透气隔离组件4与所述发声单体3共同将所述收容空间10分隔成前腔101和后腔102。
所述前腔101用于发声，所述后腔102内填充吸音颗粒7，所述透气隔离组件4将所述吸音颗粒7封装于所述后腔102以形成DBASS虚拟声腔，用于进一步改善低频声学性能。
具体为，所述发声单体3支撑固定于所述第一支撑壁221靠近所述下盖1的一端，即支撑于由所述第一支撑壁221和所述第二支撑壁222形成的支撑台阶结构上，通过在所述发声单体3的周缘打胶后形成固定。
所述发声单体3具有内腔30，所述发声单体3靠近所述后腔102的一侧开设有与所述内腔30连通的泄漏部300，所述内腔30依次经所述泄漏部300及所述透气隔离组件4与所述后腔102连通。
具体的，所述发声单体3包括振动***31、支撑所述振动***31的盆架32以及与所述盆架32固定的磁路***33。
所述磁路***33包括固定于所述盆架32的磁碗331以及安装于所述磁碗331的磁体部332，所述磁体部332具有磁间隙330。所述泄漏部300开设于所述磁碗331。
更优的，所述磁碗331包括与所述振动***31正对的底板3311以及自所述底板3311的相对两侧朝所述盆架32弯折延伸的侧板3312，所述泄漏部300形成于相邻两所述侧板3312之间。
所述盆架32与所述支撑壁22固定，具体的，盆架32与第一支撑壁221固定。
所述振动***31包括固定于盆架32远离所述磁碗331一侧的振膜311、与振膜311固定并延伸至所述磁间隙330的音圈312以及固定于所述音圈312远离所述振膜311一侧的定心支片313。
所述振膜311与所述上盖本体21间隔形成前声腔6，所述导声通道23将所述前声腔6与外界连通并共同形成所述前腔101，用于形成侧面发声结构。所述发声单体3、所述透气隔离组件4、所述上盖2及所述下盖1共同围成所述后腔102，用于改善低频声学性能。
更优的，所述振膜311包括振动部3111及自所述振动部3111周缘延伸并与所述盆架32固定的固定部3112，所述固定部3112包括夹设于所述盆架32与所述第一支撑壁221之间的边缘部31121以及自所述边缘部31121朝所述盆架32方向弯折延伸的延伸部31122，所述延伸部31122夹设于所述盆架32与所述第二支撑壁222之间。
所述音圈312驱动所述振膜311振动发声。
所述定心支片313远离所述音圈312一侧与所述盆架32固定。本实施方式中，所述定心支片313位于相邻两所述侧板3312之间并与所述泄漏部300正对。
具体的，所述透气隔离组件4包括呈环状的支架41和透气隔离件42。
所述支架41叠设固定于所述支撑壁22且环绕所述发声单体3设置，本实施方式中，所述支架41通过胶水贴合固定于所述支撑壁22。具体的，所述支架41支撑固定于所述第二支撑壁222靠近所述下盖1的一端。
更优的，支架41固定于所述第二支撑壁222的胶水与所述发声单体3固定于所述第一支撑壁221的胶水连接为一体并形成固化。
所述透气隔离件42完全盖设于所述发声单体3并与所述下盖1间隔设置，且所述透气隔离件42的周缘固定于所述支架41。所述内腔30依次经所述泄漏部300及所述透气隔离件43与所述后腔102连通。
本实施方式中，所述支架41与所述透气隔离件42使得所述透气隔离组件4形成一立体结构，使得透气隔离组件4远离所述发声单体3一侧的后腔102内填充吸音颗粒7后全部作为DBASS虚拟声腔，有效提高了扬声器箱100的低频声学性能；因透气隔离组件4盖设于发声单体3，极大程度的提高了后腔102的体积，从而有效提高了后腔102内的吸音颗粒的灌装效率。
具体的，所述透气隔离件42包括与所述发声单体3正对设置的本体421、由所述本体421的周缘向靠近所述上盖2方向弯折延伸的呈环状的延伸部422以及由所述延伸部422远离所述本体421的一端向外弯折延伸的固定部423。所述固定部423固定于所述支架41远离所述支撑壁22的一端。该结构使得所述透气隔离组件4形成一立体结构。
本实施方式中，所述本体421的周缘与所述支撑壁22正对设置，即完全覆盖所述发声单体3。所述本体421抵接于所述发声单体3，该结构设置使得后腔102的体积尽可能大，即极大程度提高了后腔102的有效利用率，且提高了后腔102的灌装效率。
所述导电端子5与所述发声单体3固定电连，用于为发声单体3引入外部电信号。所述导电端子5一端固定电连接于所述发声单体3，另一端经所述后腔30延伸至所述收容空间10外。
本实施方式中，所述支架41设有由其靠近所述支撑壁22的一侧向所述下盖1方向凹陷形成的让位槽411，所述导电端子5经所述让位槽411延伸至所述后腔102。当然，所述导电端子5经所述让位槽411延伸时所述让位槽411需要形成密封，避免吸音颗粒7进入内腔30而影响声学性能。
与相关技术相比，本实用新型的扬声器箱将所述发声单体、透气隔离组件均支撑固定于所述支撑壁且透气隔离组件位于发声单体与下盖之间，二者共同将所述收容空间分隔成前腔和后腔，所述发声单体具有内腔，所述发声单体靠近所述后腔的一侧开设有与所述内腔连通的泄漏部，所述内腔依次经所述泄漏部及所述透气隔离件与所述后腔连通上述结构则使得透气隔离组件远离所述发声单体一侧的后腔可全部填充吸音颗粒作为虚拟声腔，极大程度提高后腔的吸音颗粒的灌装效率，有效提高了扬声器箱的低频声学性能。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (11)

  1. 一种扬声器箱，包括下盖、盖设于所述下盖并共同围成收容空间的上盖、收容于所述收容空间内的发声单体以及透气隔离组件；所述上盖包括盖设于所述下盖的上盖本体和由所述上盖本体向所述下盖方向凸出延伸的呈环状的支撑壁，所述发声单体支撑固定于所述支撑壁，其特征在于，所述透气隔离组件固定于所述支撑壁且位于所述发声单体与所述下盖之间，所述透气隔离组件与所述发声单体共同将所述收容空间分隔成前腔和后腔，所述发声单体具有内腔，所述发声单体靠近所述后腔的一侧开设有与所述内腔连通的泄漏部，所述透气隔离组件包括呈环状的支架和透气隔离件，所述支架叠设固定于所述支撑壁且环绕所述发声单体设置，所述透气隔离件完全盖设于所述发声单体并与所述下盖间隔设置，且所述透气隔离件的周缘固定于所述支架，所述内腔依次经所述泄漏部及所述透气隔离件与所述后腔连通；所述后腔内填充吸音颗粒，所述透气隔离组件将所述吸音颗粒封装于所述后腔内。
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述透气隔离件包括与所述发声单体正对设置的本体、由所述本体的周缘向靠近所述上盖方向弯折延伸的呈环状的延伸部以及由所述延伸部远离所述本体的一端向外弯折延伸的固定部，所述固定部固定于所述支架远离所述支撑壁的一端。
  3. 根据权利要求2所述的扬声器箱，其特征在于，所述扬声器箱还包括导电端子，所述导电端子一端固定电连接于所述发声单体，另一端经所述后腔延伸至所述收容空间外，所述支架设有由其靠近所述支撑壁的一侧向所述下盖方向凹陷形成的让位槽，所述导电端子经所述让位槽延伸至所述后腔。
  4. 根据权利要求3所述的扬声器箱，其特征在于，所述发声单体的周缘通过胶水贴合固定于所述支撑壁，所述支架通过该胶水贴合固定于所述支撑壁。
  5. 根据权利要求1所述的扬声器箱，其特征在于，所述发声单体包括振动***、支撑所述振动***的盆架以及与所述盆架固定的磁路***，所述磁路***包括固定于所述盆架的磁碗以及安装于所述磁碗的磁体部，所述磁体部具有磁间隙，所述盆架与所述支撑壁固定，所述振动***包括固定于所述盆架远离所述磁碗一侧的振膜以及与所述振膜固定并延伸至所述磁间隙的音圈，所述泄漏部开设于所述磁碗。
  6. 根据权利要求5所述的扬声器箱，其特征在于，所述磁碗包括与所述振动***正对的底板以及自所述底板的相对两侧朝所述盆架弯折延伸的侧板，所述泄漏部形成于相邻两所述侧板之间。
  7. 根据权利要求6所述的扬声器箱，其特征在于，所述振动***还包括固定于所述音圈远离所述振膜一侧的定心支片，所述定心支片远离所述音圈一侧与所述盆架固定，所述定心支片位于相邻两所述侧板之间并与所述泄漏部正对。
  8. 根据权利要求5所述的扬声器箱，其特征在于，所述支撑壁包括由所述上盖本体向所述下盖方向凸出延伸的第一支撑壁以及由所述第一支撑壁的外周缘向所述下盖方向延伸的第二支撑壁，所述发声单体支撑固定于所述第一支撑壁靠近所述下盖的一端，所述支架支撑固定于所述第二支撑壁靠近所述下盖的一端。
  9. 根据权利要求8所述的扬声器箱，其特征在于，所述振膜包括振动部及自所述振动部周缘延伸并与所述盆架固定的固定部，所述固定部包括夹设于所述盆架与所述第一支撑壁之间的边缘部以及自所述边缘部朝所述盆架方向弯折延伸的延伸部，所述延伸部夹设于所述盆架与所述第二支撑壁之间。
  10. 根据权利要求2所述的扬声器箱，其特征在于，所述支撑壁在所述本体的正投影至少部分落入所述本体内。
  11. 根据权利要求2所述的扬声器箱，其特征在于，所述本体抵接于所述发声单体。
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