WO2021253538A1 - 扬声器箱 - Google Patents

扬声器箱 Download PDF

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Publication number
WO2021253538A1
WO2021253538A1 PCT/CN2020/101276 CN2020101276W WO2021253538A1 WO 2021253538 A1 WO2021253538 A1 WO 2021253538A1 CN 2020101276 W CN2020101276 W CN 2020101276W WO 2021253538 A1 WO2021253538 A1 WO 2021253538A1
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WO
WIPO (PCT)
Prior art keywords
sound
air
upper cover
section
main body
Prior art date
Application number
PCT/CN2020/101276
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English (en)
French (fr)
Inventor
丁健华
吴树文
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 WO2021253538A1 publication Critical patent/WO2021253538A1/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

Definitions

  • the utility model relates to the technical field of an electro-acoustic conversion device, in particular to a speaker box.
  • the speaker box in the related art includes an upper cover, a lower cover assembled with the upper cover to form a containing space, a sound emitting unit separately contained in the containing space, a ring-shaped bracket, and a ventilating isolation component;
  • the isolation assembly includes a bracket that fixes the upper cover and surrounds the sound-producing unit, and a breathable spacer between the sound-producing unit and the lower cover.
  • the periphery of the breathable spacer is fixed to the bracket, so
  • the sound-producing monomer and the air-permeable isolation component jointly divide the containing space into a front cavity and a rear cavity, so as to realize a fully tankable structure in the rear cavity.
  • the bracket and the upper cover need to be assembled and glued first, and then the air-permeable spacer is assembled and glued to the bracket to realize the above-mentioned full-filled sound-emitting monomer isolation solution.
  • the structure has many assembly and gluing steps, which seriously affects the assembly production efficiency.
  • the purpose of the utility model is to provide a loudspeaker box with excellent low-frequency acoustic performance and high assembly efficiency.
  • the present invention provides a loudspeaker box, which includes a lower cover, an upper cover covered by the lower cover and jointly enclosing a receiving space, a sounding unit received in the receiving space, and a breathable Separator;
  • the upper cover includes an upper cover body covering the lower cover and a support wall protruding from the upper cover body to the direction of the lower cover, the sound-producing monomer is supported and fixed to the support
  • the sound-emitting unit includes a magnetic circuit system, and the magnetic circuit system includes a magnetic yoke arranged on a side of the sound-emitting unit away from the upper cover.
  • the magnetic yoke includes a magnetic yoke body and a magnetic yoke.
  • the yoke supporting part formed by the periphery of the main body recessed in the direction of the upper cover;
  • the air-permeable isolator includes a main body part covering the sound emitting monomer and spaced apart from the lower cover, an extension wall bent and extending from the periphery of the main body part to the supporting wall, and a passage penetrating through the main body part.
  • the yoke body is exposed to the main body part through the through hole, the main body part is connected to the yoke support part, the extension wall is arranged around the peripheral side of the sound emitting unit, and the
  • the air-permeable spacer is fixed by the magnetic attraction between the magnetic circuit system and the air-permeable spacer and the sound-producing monomer jointly separate the containing space into a front cavity and a rear cavity; the back cavity is filled Sound-absorbing particles, the air-permeable spacer encapsulates the sound-absorbing particles in the rear cavity.
  • the thickness of the main body portion is smaller than the depth of the recess of the yoke support portion.
  • the extension wall abuts against the support wall.
  • the speaker box further includes a circuit board, one end of the circuit board is fixed and electrically connected with the sound emitting unit, the other end of the circuit board extends to the outside of the receiving space through the rear cavity, and the extension wall is provided with A relief groove is formed at one end of the support wall that is recessed toward the lower cover, and the circuit board extends through the relief groove; the location of the relief groove and the circuit board are sealed by gluing.
  • the circuit board includes a first section located between the extension wall and the sound emitting unit, and extends from opposite ends of the first section to the sound emitting unit and is connected to the sound emitting unit.
  • a second section forming an electrical connection and a third section extending from the first section away from the sound emitting unit; the third section extends through the relief groove and penetrates the upper cover to the receiving Outside the space, the location of the relief groove and the third section are sealed by gluing.
  • the upper cover is further provided with a supporting wall protruding from the outside thereof, and the third section is attached to the supporting wall.
  • the supporting wall is provided with a positioning post on one side close to the third section, and the third section is provided with a positioning hole penetrating therethrough, and the positioning post is inserted into the positioning hole.
  • the speaker box further includes a powder filling hole provided through the upper cover and/or the lower cover and a sealing cover covering the powder filling hole.
  • the speaker box of the present invention supports and fixes the sound-producing monomer to the supporting wall and positions the air-permeable isolator between the sound-producing monomer and the lower cover, and the air-permeable isolator is made of metal material.
  • the air-permeable isolator includes a main body part covering the sound-emitting monomer and spaced apart from the lower cover, and an extension wall bent and extended from the periphery of the main body part toward the supporting wall, the extension wall It is arranged around the peripheral side of the sound emitting unit, and the air-permeable spacer is fixed by the magnetic attraction between the magnetic circuit system and the air-permeable spacer and the sound unit It is divided into a front cavity and a rear cavity.
  • the above structure allows the rear cavity on the side of the air-permeable spacer away from the sound-producing monomer to be filled with sound-absorbing particles as a virtual sound cavity, which greatly improves the filling efficiency of the sound-absorbing particles in the rear cavity and is effective
  • the low-frequency acoustic performance of the speaker box is improved.
  • the air-permeable spacer is fixed by the magnetic attraction between the magnetic circuit system, the glue fixing process is omitted, and the production efficiency is effectively improved.
  • the air-permeable spacer is further provided with a through hole penetrating the main body, and the sound generating unit is provided with a yoke.
  • the yoke includes a yoke body and A yoke support portion formed by a recess in the direction of the cover, the yoke body is exposed to the main body portion through the through hole, and the main body portion is connected to the yoke support portion.
  • 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 sectional view taken along the line A-A in Figure 1;
  • FIG. 4 is a schematic structural diagram of another embodiment of the powder filling hole in the speaker box of the present invention.
  • Figure 5 is a schematic structural view of another embodiment of the powder filling hole in the speaker box of the present invention.
  • the present invention provides a speaker box 100, which includes a lower cover 1, an upper cover 2, a sounding monomer 3, and a ventilating spacer 4.
  • the lower cover 1 is disposed on the upper cover 2 and jointly encloses a receiving space 10.
  • the upper cover 2 includes an upper cover body 21 covering the lower cover 1, a supporting wall 22 projecting and extending from the upper cover body 21 in the direction of the lower cover, and a support wall 22 formed on the upper cover The sound guide channel 23 of the body 21.
  • the supporting wall 22 is ring-shaped.
  • the sound emitting unit 3 is received in the receiving space 10 and supported by the upper cover 2.
  • the sound generating unit 3 includes a vibration system 31 and a magnetic circuit system 32.
  • the magnetic circuit system 32 provides a driving force to drive the vibration system 31 to vibrate and produce sound.
  • the magnetic circuit system 32 includes a magnetic yoke 321 arranged on a side of the sound emitting unit 3 away from the upper cover 2.
  • the yoke 321 includes a yoke body 3211 and a yoke support portion 3212 formed by recessing the periphery of the yoke body 3211 in the direction of the upper cover 2.
  • the yoke support portion 3212 has a ring shape.
  • the sounding monomer 3 is supported and fixed to the supporting wall 22.
  • the periphery of the sound-producing monomer 3 is fixed to the supporting wall 22 by glue.
  • the air-permeable spacer 4 is accommodated in the accommodating space 10 and is located between the sound-producing monomer 3 and the lower cover 1.
  • the air-permeable spacer 4 and the sound-producing monomer 3 jointly hold the
  • the space 10 is divided into a front chamber 101 and a rear chamber 102.
  • the front cavity 101 is used for sound production, and the sound guide channel 23 forms the front cavity 101 into a side sound emitting structure.
  • the rear cavity 102 is filled with sound-absorbing particles 5, and the air-permeable spacer 4 encapsulates the sound-absorbing particles 5 in the rear cavity 102 to form a DBASS virtual acoustic cavity for further improving low-frequency acoustic performance.
  • the vibration system 31 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 emitting monomer 3, the air-permeable isolator 4, the upper cover 2 and the lower cover 1 jointly enclose the rear cavity 102 for improving low-frequency acoustic performance.
  • the air-permeable spacer 4 is made of metal material.
  • the air-permeable isolator 4 includes a main body 41 that is arranged on the sound-producing monomer 3 and is spaced apart from the lower cover 1, and is bent and extends from the periphery of the main body 41 toward the supporting wall 22
  • the extension wall 42 and the through hole 40 penetrating the main body 41, the extension wall 42 is arranged around the peripheral side of the sound emitting unit 3, and the air-permeable spacer 4 passes between the magnetic circuit system 32
  • the magnetic attraction to form a fixed Therefore, this structure realizes that the air-permeable spacer 4 and the sound-producing monomer 3 jointly divide the receiving space 10 into a front cavity 101 and a rear cavity 102.
  • the air-permeable spacer 4 forms a three-dimensional structure and separates the sound-producing monomer 3 from the rear cavity 102 to prevent the sound-absorbing particles 5 from entering the sound-producing monomer 3 from the rear cavity 102 to affect the sound generation performance, which is effective This improves the sounding reliability of the speaker box 100.
  • the above structure enables the rear cavity 102 on the side of the air-permeable spacer 4 away from the sound-emitting monomer 3 to be fully filled with sound-absorbing particles 5 as the D-BASS virtual sound cavity, which greatly improves the filling efficiency of the sound-absorbing particles 5 of the rear cavity 102 , Which effectively improves the low-frequency acoustic performance of the speaker box 100.
  • the air-permeable spacer 4 is fixed by the magnetic attraction force of the magnetic circuit system 32, the process of glueing and fixing is omitted, and the production efficiency is effectively improved.
  • the extension wall 42 abuts against the support wall 22 and is fixed by magnetic attraction with the magnetic circuit system 22.
  • the yoke body 3211 is exposed to the main body 41 through the through hole 40, and the main body 41 is connected to the magnetic Yoke support 3212.
  • This structure makes the assembly of the air-permeable spacer 4 simpler and has lower requirements on the accommodation space 10, especially in the thickness space along the vibration direction of the sound-producing monomer 3, which effectively improves the assembly efficiency and is beneficial to
  • the speaker box 100 has a thinner thickness.
  • the thickness of the main body portion 41 is smaller than the depth of the recess of the yoke support portion 3212.
  • the yoke body 3211 passes through the through hole 40, and the main body 41 of the air-permeable spacer 4 abuts against the yoke support portion 3212, and moves along the sounding unit 3 In the vibration direction, the distance between the air-permeable spacer 4 and the lower cover is farther than that of the sound emitting unit 3, so that the space requirement for assembling is lower, so that especially in the vibration direction of the sound emitting unit 3
  • the thickness and space requirements are lower, which effectively improves the assembly efficiency and facilitates the thinning of the thickness of the speaker box 100.
  • the speaker box 100 further includes a circuit board 7, one end of the circuit board 7 is fixedly electrically connected to the sound emitting unit 3, and the other end of the circuit board 7 extends outside the receiving space 10 through the rear cavity 102 for the sound generation
  • the monomer 3 introduces an external electric signal.
  • the extension wall 42 is provided with a relief groove 421 formed by its end close to the support wall 22 recessed in the direction of the lower cover 1, and the circuit board 7 passes through the relief groove 421.
  • the groove 421 extends and further extends to the outside of the accommodating space 10, and the position of the relief groove 421 is sealed with the circuit board 7 by gluing to prevent the sound-absorbing particles 5 from entering the sound-producing monomer 3 therefrom.
  • the circuit board 7 includes a first section 71 located between the extension wall 42 and the sound emitting unit 3, and extends from opposite ends of the first section 71 to the sound emitting unit 3 and
  • the second section 72 that is electrically connected to the sounding monomer 3 and the third section 73 that extends away from the sounding monomer 3 from the first section 71, the third section 73 is used to connect an external electric Signal.
  • the third section 73 passes through the relief groove 421 and penetrates the upper cover 2 to extend to the outside of the receiving space 10, and the position where the relief groove 421 is located and the third section 73 are sealed by gluing.
  • the upper cover 2 is further provided with a supporting wall 24 protruding from the outside thereof, and the third section 73 is attached to the supporting wall 24 to support the third section 73, which is convenient for communication with External electrical signal source connection.
  • the supporting wall 24 is provided with a positioning post 241 on one side close to the third section 73, and the third section 73 is provided with a positioning hole 731 passing through it, and the positioning post 241 is inserted into the third section 73.
  • the positioning hole 731 the positioning of the third section 73 is formed, which improves the assembly efficiency on the one hand, and prevents the movement of the third section 73 on the other hand, and improves the stability of the connection with the external power signal.
  • the speaker box 100 is also provided with a powder filling hole 9 and a sealing cover 91 covering the powder filling hole 9.
  • the powder filling hole 9 is in communication with the rear cavity 102 for filling the rear cavity 102 Sound-absorbing particles 5.
  • the powder filling holes 9 include at least two, and they are provided on the upper cover 2 and the lower cover 1 respectively.
  • the setting of the powder filling hole 9 is not limited to the above method, and can also be set separately:
  • the powder filling hole 409 includes the upper cover 402 and the sealing cover 491 covers the powder filling hole 409.
  • the powder filling hole 509 includes the lower cover 501 and the sealing cover 591 covers the powder filling hole 509.
  • the speaker box of the present invention supports and fixes the sound-producing monomer to the supporting wall and positions the air-permeable isolator between the sound-producing monomer and the lower cover, and the air-permeable isolator is made of metal material.
  • the air-permeable isolator includes a main body part covering the sound-emitting monomer and spaced apart from the lower cover, and an extension wall bent and extended from the periphery of the main body part toward the supporting wall, the extension wall It is arranged around the peripheral side of the sound emitting unit, and the air-permeable spacer is fixed by the magnetic attraction between the magnetic circuit system and the air-permeable spacer and the sound unit It is divided into a front cavity and a rear cavity.
  • the above structure allows the rear cavity on the side of the air-permeable spacer away from the sound-producing monomer to be filled with sound-absorbing particles as a virtual sound cavity, which greatly improves the filling efficiency of the sound-absorbing particles in the rear cavity and is effective
  • the low-frequency acoustic performance of the speaker box is improved.
  • the air-permeable spacer is fixed by the magnetic attraction of the magnetic circuit system, the glue fixing process is omitted, and the production efficiency is effectively improved.
  • the air-permeable spacer is further provided with a through hole penetrating the main body, and the sound generating unit is provided with a yoke.
  • the yoke includes a yoke body and A yoke support portion formed by a recess in the direction of the cover, the yoke body is exposed to the main body portion through the through hole, and the main body portion is connected to the yoke support portion.

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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，其包括下盖、上盖、发声单体及透气隔离件；上盖包括上盖本体和支撑壁；发声单体支撑固定于支撑壁，发声单体包括设有磁轭的磁路***，磁轭包括磁轭本体和磁轭支撑部；透气隔离件位于发声单体与下盖之间；透气隔离件为金属材料制成，透气隔离件包括主体部、延伸壁及通孔，磁轭本体经由通孔外露于主体部，主体部连接于磁轭支撑部，延伸壁环绕发声单体的周侧设置，透气隔离件通过与磁路***之间的磁吸力以形成固定从而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；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。与相关技术相比，本实用新型的扬声器箱低频声学性能优，装配效率高。

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、分别收容于该收容空间内的发声单体、呈环状的支架及透气隔离组件；所述透气隔离组件包括固定所述上盖并环绕所述发声单体设置的支架和位于所述发声单体与所述下盖之间透气隔离件，所述透气隔离件的周缘固定于所述支架，所述发声单体及所述透气隔离组件共同将所述收容空间分隔为前腔和后腔，以实现后腔内可全罐装结构。
 技术问题
然而，相关技术的扬声器箱中，需要先将所述支架与上盖装配胶合，然后再将透气隔离件组配胶合至所述支架，以实现上述全灌装的发声单体隔离方案。该结构装配胶合步骤较多，严重影响了装配生产效率。
因此，实有必要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低频声学性能优且装配效率高的扬声器箱。
为了达到上述目的，本实用新型提供了一种扬声器箱，其包括下盖、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支撑壁，所述发声单体支撑固定于所述支撑壁，所述发声单体包括磁路***，所述磁路***包括设置于所述发声单体远离所述上盖一侧的磁轭，所述磁轭包括磁轭本体和由所述磁轭本体的周缘向所述上盖的方向凹陷形成的磁轭支撑部；所述透气隔离件位于所述发声单体与所述下盖之间，所述透气隔离件为金属材料制成，所述透气隔离件包括盖设于所述发声单体并与所述下盖间隔设置的主体部、由所述主体部的周缘向所述支撑壁弯折延伸的延伸壁以及贯穿所述主体部的通孔，所述磁轭本体经由所述通孔外露于所述主体部，所述主体部连接于所述磁轭支撑部，所述延伸壁环绕所述发声单体的周侧设置，且所述透气隔离件通过与所述磁路***之间的磁吸力以形成固定从而所述透气隔离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。
优选的，所述主体部的厚度小于所述磁轭支撑部凹陷的深度。
优选的，所述延伸壁抵接于所述支撑壁。
优选的，所述扬声器箱还包括电路板，所述电路板一端与所述发声单体固定电连接，其另一端经所述后腔延伸至所述收容空间外，所述延伸壁设有由其靠近所述支撑壁的一端向所述下盖方向凹陷形成的让位槽，所述电路板经所述让位槽延伸；所述让位槽所在位置与所述电路板通过胶合密封。
优选的，所述电路板包括位于所述延伸壁与所述发声单体之间的第一段，由所述第一段的相对两端向所述发声单体延伸并与所述发声单体形成电性连接的第二段以及由所述第一段向远离所述发声单体延伸的第三段；所述第三段经所述让位槽并贯穿所述上盖延伸至所述收容空间外，所述让位槽所在位置与所述第三段通过胶合密封。
优选的，所述上盖还设有由其外侧凸出延伸的托壁，所述第三段贴设于所述托壁。
优选的，所述托壁靠近所述第三段的一侧设有定位柱，所述第三段设有贯穿其上的定位孔，所述定位柱插设于所述定位孔。
优选的，所述扬声器箱还包括贯穿所述上盖和/或所述下盖设置的灌粉孔以及盖设所述灌粉孔的密封盖。
 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支撑固定于所述支撑壁且使透气隔离件位于发声单体与下盖之间，所述透气隔离件为金属材料制成，所述透气隔离件包括盖设于所述发声单体并与所述下盖间隔设置的主体部和由所述主体部的周缘向所述支撑壁弯折延伸的延伸壁，所述延伸壁环绕所述发声单体的周侧设置，且所述透气隔离件通过与所述磁路***之间的磁吸力以形成固定从而所述透气隔离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，上述结构则使得透气隔离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，同时，因透气隔离件通过与磁路***之间的磁吸力形成固定，省去了打胶固定的工序，有效提高了生产效率。另外，所述透气隔离件还设有贯穿所述主体部的通孔，所述发声单体设有磁轭，所述磁轭包括磁轭本体和由所述磁轭本体的周缘向所述上盖的方向凹陷形成的磁轭支撑部，所述磁轭本体经由所述通孔外露于所述主体部，所述主体部连接于所述磁轭支撑部，该结构使得所述透气隔离件装配更为简单且对所述收容空间要求更低，尤其在沿所述发声单体的振动方向的厚度空间要求更低，有效提高装配效率并有利于扬声器箱厚度薄化。
 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为沿图1中A-A线的剖示图；
图4为本实用新型扬声器箱中灌粉孔设置的另一实施方式结构示意图；
图5为本实用新型扬声器箱中灌粉孔设置的又一实施方式结构示意图。
 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1-3，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以及透气隔离件4。所述下盖1设于所述上盖2并共同围成收容空间10。
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呈环状。
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。所述发声单体3包括振动***31和磁路***32。所述磁路***32提供驱动力以驱动所述振动***31振动发声。
所述磁路***32包括设置于所述发声单体3远离所述上盖2一侧的磁轭321。具体的，所述磁轭321包括磁轭本体3211和由所述磁轭本体3211的周缘向所述上盖2的方向凹陷形成的磁轭支撑部3212。本实施方式中，磁轭支撑部3212呈环形。
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。
所述透气隔离件4收容于所述收容空间10内，且位于所述发声单体3与所述下盖1之间，所述透气隔离件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，所述导声通道23将前腔101形成侧发声结构。所述后腔102内填充吸音颗粒5，所述透气隔离件4将所述吸音颗粒5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。
所述振动***31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。
所述透气隔离件4为金属材料制成。具体的，所述透气隔离件4包括盖设于所述发声单体3并与所述下盖1间隔设置的主体部41、由所述主体部41的周缘向所述支撑壁22弯折延伸的延伸壁42以及贯穿所述主体部41的通孔40，所述延伸壁42环绕所述发声单体3的周侧设置，且所述透气隔离件4通过与所述磁路***32之间的磁吸力以形成固定。从而，该结构实现所述透气隔离件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。也就是说，所述透气隔离件4形成立体结构，并将所述发声单体3与所述后腔102分隔，防止吸音颗粒5从后腔102进入发声单体3内部而影响发声性能，有效的提高了扬声器箱100的发声可靠性。
上述结构则使得透气隔离件4远离所述发声单体3一侧的后腔102可全部填充吸音颗粒5作为D-BASS虚拟声腔，极大程度提高了后腔102的吸音颗粒5的灌装效率，有效提高了扬声器箱100的低频声学性能。同时，因透气隔离件4通过与磁路***32的磁吸力形成固定，省去了打胶固定的工序，有效提高了生产效率。
本实施方式中，所述延伸壁42抵接于所述支撑壁22，并通过与磁路***22的磁吸力形成固定。
为了更好地将所述透气隔离件4与所述发声单体3装配，所述磁轭本体3211经由所述通孔40外露于所述主体部41，所述主体部41连接于所述磁轭支撑部3212。该结构使得所述透气隔离件4装配更为简单且对所述收容空间10要求更低，尤其在沿所述发声单体3的振动方向的厚度空间要求更低，有效提高装配效率并有利于扬声器箱100厚度薄化。
本实施方式中，所述主体部41的厚度小于所述磁轭支撑部3212凹陷的深度。也就是说，所述磁轭本体3211穿过所述通孔40，所述透气隔离件4的所述主体部41抵接于所述磁轭支撑部3212后，沿所述发声单体3的振动方向，所述透气隔离件4距离所述下盖的距离比所述发声单体3更远，从而使得对装配的空间要求更低，从而使尤其在沿所述发声单体3的振动方向的厚度空间要求更低，有效提高装配效率并有利于扬声器箱100厚度薄化。
所述扬声器箱100还包括电路板7，所述电路板7一端与所述发声单体3固定电连接，其另一端经所述后腔102延伸至所述收容空间10外，为所述发声单体3引入外部电信号。
为了配合电路板7的装配，所述延伸壁42设有由其靠近所述支撑壁22的一端向所述下盖1方向凹陷形成的让位槽421，所述电路板7经所述让位槽421延伸，并进一步延伸至收容空间10外，所述让位槽421所在位置与所述电路板7通过胶合密封，以防止吸音颗粒5由此进入发声单体3内部。
具体的，所述电路板7包括位于所述延伸壁42与所述发声单体3之间的第一段71，由所述第一段71的相对两端向所述发声单体3延伸并与所述发声单体3形成电性连接的第二段72以及由所述第一段71向远离所述发声单体3延伸的第三段73，所述第三段73用于连接外部电信号。
所述第三段73经所述让位槽421并贯穿所述上盖2延伸至所述收容空间10外，所述让位槽421所在位置与所述第三段73通过胶合密封。
本实施方式中，所述上盖2还设有由其外侧凸出延伸的托壁24，所述第三段73贴设于所述托壁24，从而对第三段73形成支撑，方便与外部电信号源连接。
更优的，所述托壁24靠近所述第三段73的一侧设有定位柱241，所述第三段73设有贯穿其上的定位孔731，所述定位柱241插设于所述定位孔731内，形成对所述第三段73的定位，一方面提高装配效率，另一方面避免了第三段73的移动，提高其与外部电源信号连接的稳定性。
所述扬声器箱100还设有灌粉孔9以及盖设所述灌粉孔9的密封盖91，所述灌粉孔9与所述后腔102连通，用于向所述后腔102内填充吸音颗粒5。
如图2所示，所述灌粉孔9包括至少两个，且分别设置于所述上盖2和所述下盖1。
当然，所述灌粉孔9的设置不限于上述方式，还可以单独设置：
如图4所示的扬声器箱400，所述灌粉孔409包括贯穿所述上盖402设置，所述密封盖491盖设于灌粉孔409。
如图5所示的扬声器箱500，所述灌粉孔509包括贯穿所述下盖501设置，所述密封盖591盖设于灌粉孔509。
与相关技术相比，本实用新型的扬声器箱将所述发声单体支撑固定于所述支撑壁且使透气隔离件位于发声单体与下盖之间，所述透气隔离件为金属材料制成，所述透气隔离件包括盖设于所述发声单体并与所述下盖间隔设置的主体部和由所述主体部的周缘向所述支撑壁弯折延伸的延伸壁，所述延伸壁环绕所述发声单体的周侧设置，且所述透气隔离件通过与所述磁路***之间的磁吸力以形成固定从而所述透气隔离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，上述结构则使得透气隔离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，同时，因透气隔离件通过与磁路***的磁吸力形成固定，省去了打胶固定的工序，有效提高了生产效率。另外，所述透气隔离件还设有贯穿所述主体部的通孔，所述发声单体设有磁轭，所述磁轭包括磁轭本体和由所述磁轭本体的周缘向所述上盖的方向凹陷形成的磁轭支撑部，所述磁轭本体经由所述通孔外露于所述主体部，所述主体部连接于所述磁轭支撑部，该结构使得所述透气隔离件装配更为简单且对所述收容空间要求更低，尤其在沿所述发声单体的振动方向的厚度空间要求更低，有效提高装配效率并有利于扬声器箱厚度薄化。
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 (8)

  1. 一种扬声器箱，其包括下盖、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支撑壁，所述发声单体支撑固定于所述支撑壁，所述发声单体包括磁路***，所述磁路***包括设置于所述发声单体远离所述上盖一侧的磁轭，其特征在于，所述磁轭包括磁轭本体和由所述磁轭本体的周缘向所述上盖的方向凹陷形成的磁轭支撑部；所述透气隔离件位于所述发声单体与所述下盖之间，所述透气隔离件为金属材料制成，所述透气隔离件包括盖设于所述发声单体并与所述下盖间隔设置的主体部、由所述主体部的周缘向所述支撑壁弯折延伸的延伸壁以及贯穿所述主体部的通孔，所述磁轭本体经由所述通孔外露于所述主体部，所述主体部连接于所述磁轭支撑部，所述延伸壁环绕所述发声单体的周侧设置，且所述透气隔离件通过与所述磁路***之间的磁吸力以形成固定从而所述透气隔离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。
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述主体部的厚度小于所述磁轭支撑部凹陷的深度。
  3. 根据权利要求1所述的扬声器箱，其特征在于，所述延伸壁抵接于所述支撑壁。
  4. 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电路板，所述电路板一端与所述发声单体固定电连接，其另一端经所述后腔延伸至所述收容空间外，所述延伸壁设有由其靠近所述支撑壁的一端向所述下盖方向凹陷形成的让位槽，所述电路板经所述让位槽延伸；所述让位槽所在位置与所述电路板通过胶合密封。
  5. 根据权利要求4所述的扬声器箱，其特征在于，所述电路板包括位于所述延伸壁与所述发声单体之间的第一段，由所述第一段的相对两端向所述发声单体延伸并与所述发声单体形成电性连接的第二段以及由所述第一段向远离所述发声单体延伸的第三段；所述第三段经所述让位槽并贯穿所述上盖延伸至所述收容空间外，所述让位槽所在位置与所述第三段通过胶合密封。
  6. 根据权利要求5所述的扬声器箱，其特征在于，所述上盖还设有由其外侧凸出延伸的托壁，所述第三段贴设于所述托壁。
  7. 根据权利要求6所述的扬声器箱，其特征在于，所述托壁靠近所述第三段的一侧设有定位柱，所述第三段设有贯穿其上的定位孔，所述定位柱插设于所述定位孔。
  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贯穿所述上盖和/或所述下盖设置的灌粉孔以及盖设所述灌粉孔的密封盖。
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