WO2021127926A1 - 扬声器 - Google Patents

扬声器 Download PDF

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Publication number
WO2021127926A1
WO2021127926A1 PCT/CN2019/127639 CN2019127639W WO2021127926A1 WO 2021127926 A1 WO2021127926 A1 WO 2021127926A1 CN 2019127639 W CN2019127639 W CN 2019127639W WO 2021127926 A1 WO2021127926 A1 WO 2021127926A1
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WO
WIPO (PCT)
Prior art keywords
ring
frame
dome
annular
magnetic
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PCT/CN2019/127639
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English (en)
French (fr)
Inventor
邵涛
顾小江
严绪东
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
Priority to PCT/CN2019/127639 priority Critical patent/WO2021127926A1/zh
Publication of WO2021127926A1 publication Critical patent/WO2021127926A1/zh

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    • 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 electronic components, in particular to a loudspeaker.
  • the prior art speaker includes a magnetic circuit system composed of a magnetic bowl, a magnetic steel and a pole core, and a vibration system composed of a voice coil, an outer frame, an inner frame, an upper sound film and a lower sound film, and the upper sound film includes a dome
  • the outer frame and the dome are installed separately in the speaker, and the outer frame must be installed at the bottom of the dome during assembly to assemble the two together.
  • the purpose of the utility model is to provide a low-cost loudspeaker.
  • the present invention provides a speaker, including a basin frame with a receiving space, and a magnetic circuit system and a vibration system contained in the receiving space.
  • the magnetic circuit system includes a frame fixed to the basin frame.
  • a magnetic bowl the vibration system includes an upper sound film fixed to the basin frame for vibrating and sounding, the upper sound film includes a dome in the middle position and a dome that surrounds the dome and is fixed to the basin frame
  • a folding ring the folding ring includes a first annular end fixedly connected to the dome, the dome is fixed on a side of the first annular end facing the receiving space
  • the vibration system further includes A first frame that is bent and extended from the edge of the dome into the accommodation space and a lower sound membrane arranged spaced apart from the upper sound membrane, the lower sound membrane has a ring shape, and the lower sound membrane has a connection with the upper sound membrane.
  • the first frame is connected to a second ring-shaped end part suspended in the containing space and a third ring-shaped end part fixed on the basin frame.
  • the folding ring further includes a fourth annular end connected to the basin frame and a first folding ring connecting the first annular end and the fourth annular end.
  • the first folding ring portion is recessed in a direction away from the lower sound membrane.
  • the outer diameter of the dome is larger than the inner diameter of the first annular end and smaller than the outer diameter of the first annular end.
  • the lower sound membrane further has a second ring portion connecting the second ring-shaped end portion and the third ring-shaped end portion, and the recessed direction of the second ring portion is aligned with the first ring portion.
  • the recessed direction of a folded ring portion is opposite.
  • the vibration system further includes a voice coil and a second skeleton
  • the magnetic circuit system further includes a magnetic steel located in the magnetic bowl, the magnetic circuit system is provided with a magnetic gap, and the magnetic A gap is formed between the magnetic steel and the magnetic bowl, the voice coil is located in the magnetic gap, one end of the second frame is connected to the dome, and the other end suspends the voice coil Within the magnetic gap.
  • the second frame includes a first ring frame connected to the voice coil, a second ring frame located outside the magnetic bowl and connected to the upper sound film, and a plurality of spaced connections A rod, one end of the connecting rod is connected with the first ring frame, and the other end is connected with the second ring frame.
  • the magnetic bowl includes a top plate, a bottom plate, and an annular side plate connecting the top plate and the bottom plate.
  • the magnetic bowl has an accommodation space enclosed by the top plate, the bottom plate and the annular side plate, and a plurality of slaves.
  • One side of the top plate toward the side of the bottom plate successively penetrates through the top plate and the annular side plate and communicates with the accommodating space through the through hole, the voice coil, the magnetic steel and the second ring frame are all located in the In the accommodating space, one end of the connecting rod is connected to the first ring frame, and the other end is connected to the second ring frame after passing through the perforation.
  • the basin frame includes a bearing board located in the middle position and a surrounding board bent and extended from the edge of the bearing board toward the upper sound film, and the surrounding board and the bearing board are enclosed to form a In the accommodating space, an annular step is protruded from one side of the bearing plate facing the accommodating space, and the third annular end is fixed on the annular step.
  • the bearing plate is further provided with a boss located in the annular step on the side facing the receiving space, and the boss has a boss that penetrates the boss in a direction perpendicular to the vibration direction of the loudspeaker.
  • An accommodating cavity, the magnetic bowl is accommodated in the accommodating cavity.
  • the boss further has a plurality of avoiding holes arranged at intervals and communicating with the containing cavity, and the avoiding holes are arranged corresponding to the perforations.
  • the vibration system further includes an annular gasket sandwiched between the first frame and the lower sound membrane.
  • the present invention provides that the first frame of the loudspeaker and the dome top of the upper sound film are integrally formed. In this way, the number of parts of the loudspeaker can be reduced, the assembly process of the loudspeaker can be optimized, and the manufacturing cost of the loudspeaker can be reduced.
  • Figure 1 is a schematic diagram of the overall structure of the speaker of the utility model
  • Figure 2 is a cross-sectional view of A-A in Figure 1;
  • Fig. 3 is a partial enlarged schematic diagram of B in Fig. 2;
  • Figure 4 is an exploded view 1 of the speaker of the utility model
  • Figure 5 is the second exploded view of the speaker of the utility model
  • Figure 6 is a schematic diagram of the structure of the basin frame of the utility model
  • Figure 7 is a schematic diagram of the structure of the upper sound film of the utility model
  • Fig. 8 is a schematic diagram of the structure of the lower sound membrane of the present invention.
  • the present utility model provides a speaker.
  • the speaker includes a basin frame 10, a magnetic circuit system 20 and a vibration system 30.
  • the basin frame 10 has an accommodation space 11, a magnetic circuit system 20 and a vibration system. All 30 are contained in the containment space 11.
  • the basin frame 10 includes a carrying plate 12 at an intermediate position and an enclosure plate 13 bent and extended from the edge of the carrying plate 12 toward the upper sound film 31 side of the vibration system 30, the enclosure plate 13 and
  • the carrying plate 12 encloses the receiving space 11, and the side of the carrying plate 12 facing the receiving space 11 is protrudingly provided with an annular step 121 and a boss 122 arranged in the middle of the carrying plate 12 and located in the annular step 121.
  • the boss 122 and the annular step 121 are spaced apart.
  • the magnetic circuit system 20 includes a magnetic bowl 21, a magnetic steel 22, and a pole core 23.
  • the magnetic bowl 21 is fixed on the basin frame 10.
  • the boss 122 has accommodating cavities 123 penetrating both ends of the boss 122 along the vibration direction.
  • the magnetic bowl 21 is accommodated in the accommodating cavity 123 to complete the fixation of the magnetic bowl 21.
  • the magnetic steel 22 and the pole core 23 are both located in the magnetic bowl 21, a magnetic gap 24 is provided in the magnetic circuit system 20, and the magnetic steel 22 and the magnetic bowl 21 are spaced apart to form the magnetic gap 24.
  • the vibration system 30 includes an upper sound film 31, a lower sound film 32, a voice coil 33, a first frame 34, and a second frame 35, wherein the upper sound film 31 is fixed on the basin frame 10 for
  • the upper sound film 31 includes a dome 311 in the middle position and a folding ring 312 that surrounds the dome 311 and is fixed on the basin frame 10.
  • the folding ring 312 has a ring structure, and the folding ring 312 includes the dome 311 fixed The first ring-shaped end portion 313 connected, the fourth ring-shaped end portion 314 connected with the basin frame 10, and the first ring portion 315 and the first ring portion 315 connecting the first ring-shaped end portion 313 and the fourth ring-shaped end portion 314 Recessed in the direction of the lower sound membrane 32, the dome 311 is fixed to the side of the first annular end 313 facing the accommodating space 11.
  • the shape of the first annular end 313 and the fourth annular end 314 can be various structures. For example, an annular plane or a stepped shape, the first annular end 313 and the fourth annular end 314 in this embodiment are preferably flat, which is more conducive to a stable connection.
  • the outer diameter of the dome 311 is greater than the inner diameter of the first annular end 313, and the outer diameter of the dome 311 is smaller than the outer diameter of the first annular end 313, and the outer edge of the dome 311 abuts against the first annular end 313, Therefore, the dome 311 is fixed on the side of the first annular end 313 close to the magnetic circuit system 20.
  • the lower sound membrane 32 and the upper sound membrane 31 are spaced apart, the lower sound membrane 32 has a ring shape, and the lower sound membrane 32 has a second ring shape connected to the first frame 34 and suspended in the accommodating space 11
  • the end portion 321, the third annular end portion 322 fixed on the basin frame 10, and the second ring portion 323 connecting the second ring end portion 321 and the third ring end portion 322, the depression direction of the second ring portion 323 is the same as
  • the concave direction of the first folding ring portion 315 is opposite, and the inner diameter of the third annular end portion 322 is larger than the outer diameter of the second annular end portion 321.
  • the third annular end portion 322 is fixed on the annular step 121.
  • the second The annular end 321 and the third annular end 322 are preferably flat.
  • the first frame 34 is bent and extended from the edge of the dome 311 into the receiving space 11.
  • the first frame 34 is arranged between the upper sound film 31 and the lower sound film 32 and is integrally formed with the dome 311, which can reduce speaker components Quantity, optimize the assembly process of the speaker, and reduce the production cost of the speaker.
  • the horizontal swing of the speaker during use can be suppressed, and the speaker swing phenomenon can be effectively suppressed.
  • the voice coil 33 is located in the magnetic gap 24, the magnetic bowl 21 includes a top plate 211 close to the upper sound film 31, a bottom plate 212 fixedly connected to the magnet 22, and an annular side plate 213 connecting the top plate 211 and the bottom plate 212
  • the magnetic bowl 21 has an accommodation space 214 enclosed by a top plate 211, a bottom plate 212, and an annular side plate 213, and a number of accommodating spaces 214 that pass through the top plate 211 and the annular side plate 213 from the top plate 211 side to the bottom plate 212 side in turn and are connected to the accommodating space.
  • the space 214 communicates with the through hole 215, and the voice coil 33, the magnetic steel 22 and the pole core 23 are all located in the accommodating space 214.
  • the number of magnets 22 is two, the pole core 23 and the two magnets 22 are stacked in the magnetic bowl 21, and the pole core 23 is located between the two magnets 22.
  • This arrangement has the advantage of increasing magnetism. Due to the magnetic field of the gap 24, the voice coil 33 is located in the magnetic bowl 21 and sleeved outside the magnetic steel 22 and the pole core 23.
  • One end of the second frame 35 is connected to the dome 311 of the upper sound film 31, preferably the second ring
  • the frame 352 is bonded to the upper sound film 31, the other end of the second frame 35 passes through the perforation 215 and then the voice coil 33 is suspended in the magnetic gap 24, and the second frame 35 can face the magnetic bowl under the drive of the voice coil 33 21 moves in a direction perpendicular to the vibration of the speaker, so that the voice coil 33 can generate an alternating driving force in the magnetic circuit system 20 through the second skeleton 35.
  • the second frame 35 includes a first ring frame 351 located in the accommodating space 214 and connected to the voice coil 33, a second ring frame 352 located outside the magnetic bowl 21 and connected to the upper sound film 31, and several There are two connecting rods 353 arranged at intervals, one end of the connecting rod 353 is connected to the first ring frame 351, and the other end of the connecting rod 353 passes through the through hole 215 and then is connected to the second ring frame 352.
  • the magnetic bowl 21 includes an upper frame body 216 and a lower frame body 217 fixed to the upper frame body 216.
  • the upper frame body 216 and the lower frame body 217 enclose the accommodation space 214, and the perforation 215 extends from the upper frame
  • the top of the body 216 is recessed and extends along the axial direction of the magnetic bowl 21 toward the bottom of the lower frame 217, and the second frame 35 is made of flexible material.
  • the upper frame 216 can be first followed by the two connecting rods 353. The gap between the two is squeezed into the second frame 35, and then the voice coil 33 is fixed in the magnetic bowl 21.
  • the side of the top plate 211 facing the bottom plate 212 and the side of the bottom plate 212 facing the top plate 211 are protruded with protrusions 218, and the two protrusions 218 respectively abut against the two magnets 22 to avoid the magnets 22.
  • the pole core 23 shakes relative to the magnetic bowl 21 when the speaker is working.
  • the boss 122 further has a number of escape holes 124 spaced apart and communicated with the accommodating cavity 123.
  • the escape holes 124 and the perforations 215 are correspondingly arranged to prevent the second frame 35 from colliding with the boss 122.
  • the vibration system 30 further includes an annular gasket 36 sandwiched between the first frame 34 and the lower sound membrane 32.
  • a number of sound holes 131 penetrate through the enclosure plate 13 of the basin frame 10.
  • the voice coil 33 When the voice coil 33 is supplied with an alternating current, under the action of the magnetic field of the magnetic circuit system 20 , The voice coil 33 will receive an alternating driving force to produce an alternating motion, thereby driving the upper sound film 31 to vibrate together through the second frame 35. Because the first frame 34 and the dome 311 of the upper sound film 31 are integrally formed, The sound membrane 31 drives the first skeleton 34 to vibrate, which indirectly drives the lower sound membrane 32 to vibrate, thereby generating sound.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本实用新型提供一种扬声器，包括具有收容空间的盆架以及收容于收容空间内的磁路系统和振动系统，磁路系统包括固定于盆架的磁碗，振动系统包括固定于盆架用于振动发声的上音膜，上音膜包括位于中间的位置的球顶以及环绕球顶并固定于盆架的折环，折环包括与球顶固定连接的第一环形端部，球顶固定于第一环形端部朝向收容空间的一侧，振动系统还包括自球顶边缘向收容空间内弯折延伸的第一骨架以及与上音膜间隔设置的下音膜，下音膜呈环形，下音膜具有与第一骨架连接且悬置于收容空间内的第二环形端部以及固定于盆架上的第三环形端部。本实施例中扬声器的第一骨架与球顶为一体成型，这样，可减少扬声器的零部件数量，降低扬声器的制作成本。

Description

扬声器 技术领域
本实用新型涉及电子元件技术领域，尤其涉及一种扬声器。
背景技术
现有技术的扬声器包括由磁碗、磁钢和极芯组成的磁路系统以及由音圈、外骨架、内骨架、上音膜和下音膜组成的振动系统，且上音膜包括球顶，但是，在扬声器中外骨架和球顶是分开设置的，在装配时需将外骨架安装于球顶的底部，以将二者组装在一起。
这样，就会使得扬声器的零部件数量增加，使得扬声器的装配工序多，从而造成扬声器的成本增加。
因此，有必要提供一种新的扬声器以解决上述问题。
发明概述
技术问题
本实用新型的目的在于提供一种成本低的扬声器。
问题的解决方案
技术解决方案
本实用新型的技术方案如下：
为了实现上述目的，本实用新型提供了一种扬声器，包括具有收容空间的盆架以及收容于所述收容空间内的磁路系统和振动系统，所述磁路系统包括固定于所述盆架的磁碗，所述振动系统包括固定于所述盆架用于振动发声的上音膜，所述上音膜包括位于中间的位置的球顶以及环绕所述球顶并固定于所述盆架的折环，所述折环包括与所述球顶固定连接的第一环形端部，所述球顶固定于所述第一环形端部朝向所述收容空间的一侧，所述振动系统还包括自所述球顶边缘向所述收容空间内弯折延伸的第一骨架以及与所述上音膜间隔设置的下音膜，所述下音膜呈环形，所述下音膜具有与所述第一骨架连接且悬置于所述收容空间内的第二环形端部以及固定于所述盆架上的第三环形端部。
作为一种改进方式，所述折环还包括与所述盆架连接的第四环形端部以及连接所述第一环形端部与所述第四环形端部的第一折环部，所述第一折环部朝向远离所述下音膜的方向凹陷。
作为一种改进方式，所述球顶的外径大于所述第一环形端部的内径且小于所述第一环形端部的外径。
作为一种改进方式，所述下音膜还具有连接所述第二环形端部与所述第三环形端部的第二折环部，所述第二折环部的凹陷方向与所述第一折环部的凹陷方向相反。
作为一种改进方式，所述振动系统还包括音圈及第二骨架，所述磁路系统还包括位于所述磁碗内的磁钢，所述磁路系统中设有磁间隙，所述磁间隙形成于所述磁钢与所述磁碗之间，所述音圈位于所述磁间隙内，所述第二骨架的一端与所述球顶连接、另一端将所述音圈悬置于所述磁间隙内。
作为一种改进方式，所述第二骨架包括与所述音圈连接的第一环形架、位于所述磁碗外并与所述上音膜连接的第二环形架以及若干个间隔设置的连接杆，所述连接杆的一端与所述第一环形架连接、另一端与所述第二环形架连接。
作为一种改进方式，所述磁碗包括顶板、底板以及连接顶板和底板的环形侧板，所述磁碗具有由所述顶板、底板与环形侧板围合形成的容置空间以及若干个从所述顶板一侧朝所述底板一侧依次贯穿所述顶板和所述环形侧板并与所述容置空间相连通的穿孔，所述音圈、磁钢和第二环形架都位于所述容置空间内，所述连接杆的一端与所述第一环形架连接、另一端穿过所述穿孔后与所述第二环形架连接。
作为一种改进方式，所述盆架包括位于中间位置的承载板和自所述承载板边缘朝所述上音膜弯折延伸的围板，所述围板和所述承载板围合形成所述收容空间，所述承载板之朝向所述收容空间的一侧凸设有环形台阶，所述第三环形端部固定于所述环形台阶上。
作为一种改进方式，所述承载板之朝向所述收容空间的一侧还凸设有位于所述环形台阶内的凸台，所述凸台具有沿垂直于扬声器振动方向贯穿所述凸台的容纳腔，所述磁碗收容于所述容纳腔内。
作为一种改进方式，所述凸台还具有若干个间隔设置并与所述容纳腔相连通的避让孔，所述避让孔与所述穿孔对应设置。
作为一种改进方式，所述振动系统还包括夹设于所述第一骨架与所述下音膜之间的环形垫片。
发明的有益效果
有益效果
本实用新型的有益效果为：
与现有技术相比，本实用新型提供扬声器的第一骨架与上音膜中球顶为一体成型，这样，可减少扬声器的零部件数量，优化扬声器的装配工序，从而降低扬声器的制作成本。
对附图的简要说明
附图说明
图1为本实用新型的扬声器的整体结构示意图；
图2为图1中A-A的剖视图；
图3为图2中B的局部放大示意图；
图4为本实用新型的扬声器的分解图一；
图5为本实用新型的扬声器的分解图二；
图6为本实用新型的盆架的结构示意图；
图7为本实用新型的上音膜的结构示意图；
图8为本实用新型的下音膜的结构示意图。
附图标号：
10、盆架；11、收容空间；12、承载板；121、环形台阶；122、凸台；123、容纳腔；124、避让孔；13、围板；131、出声孔；20、磁路系统；21、磁碗；211、顶板；212、底板；213、环形侧板；214、容置空间；215、穿孔；216、上框体；217、下框体；218、凸起；22、磁钢；23、极芯；24、磁间隙；30、振动系统；31、上音膜；311、球顶；312、折环；313、第一环形端部；314、第四环形端部；315、第一折环部；32、下音膜；321、第二环形端部；322、第三环形端部；323、第二折环部；33、音圈；34、第 一骨架；35、第二骨架；351、第一环形架；352、第二环形架；353、连接杆；36、环形垫片。
发明实施例
具体实施方式
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本实用新型，并不用于限定本实用新型。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他实施例，都属于本实用新型保护的范围。
本实用新型的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
需要说明的是，在本实用新型中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本实用新型要求的保护范围之内。
请一并参阅图1至图5，本实用新型提供了一种扬声器，该扬声器包括盆架10、磁路系统20和振动系统30，盆架10具有收容空间11，磁路系统20和振动系统30都收容于收容空间11内。
请进一步参阅图6，具体地，盆架10包括位于中间位置的承载板12和自承载板12的边缘朝振动系统30中上音膜31一侧弯折延伸的围板13，围板13和承载板12围 合形成所述收容空间11，承载板12之朝向收容空间11的一侧凸设有环形台阶121以及设于承载板12的中部并位于环形台阶121内的凸台122，凸台122与环形台阶121间隔设置。
磁路系统20包括磁碗21、磁钢22和极芯23，磁碗21固定于盆架10上，具体地，凸台122具有沿振动方向贯穿所述凸台122两端面的容纳腔123，磁碗21收容于容纳腔123内，以完成对磁碗21进行固定。且磁钢22和极芯23都位于磁碗21内，磁路系统20中设有磁间隙24，磁钢22与磁碗21间隔设置形成所述磁间隙24。
请参阅图4和图7，振动系统30包括上音膜31、下音膜32、音圈33、第一骨架34以及第二骨架35，其中，上音膜31固定于盆架10上用于振动发声，上音膜31包括位于中间位置的球顶311以及环绕球顶311并固定于盆架10上的折环312，该折环312为环状结构，折环312包括与球顶311固定连接的第一环形端部313、与盆架10连接的第四环形端部314以及连接第一环形端部313与第四环形端部314的第一折环部315，第一折环部315朝向下音膜32的方向凹陷，球顶311固定于第一环形端部313朝向收容空间11的一侧，这里的第一环形端部313和第四环形端部314形状可以为多种结构形式，比如环形平面或者为台阶状，本实施例中第一环形端部313和第四环形端部314优选为平面，更有利于稳固连接。
球顶311的外径大于第一环形端部313的内径，且球顶311的外径小于第一环形端部313的外径，球顶311的外边缘抵接于第一环形端部313，从而使得球顶311固定于第一环形端部313靠近磁路系统20的一侧。
请参阅图6和图8，下音膜32与上音膜31间隔设置，下音膜32呈环形，下音膜32具有与第一骨架34连接且悬置于收容空间11内的第二环形端部321、固定于盆架10上的第三环形端部322以及连接第二环形端部321与第三环形端部322的第二折环部323，第二折环部323的凹陷方向与第一折环部315的凹陷方向相反，且第三环形端部322的内径大于第二环形端部321的外径，第三环形端部322固定于环形台阶121上，本实施例中第二环形端部321和第三环形端部322优选为平面。
第一骨架34自球顶311边缘向收容空间11内弯折延伸，第一骨架34设于上音膜31与下音膜32之间并与球顶311一体成型，这样可减少扬声器的零部件数量，优化扬声器的装配工序，降低扬声器的制作成本。而且，通过在第一骨架34的两 端对称设置上音膜31和下音膜32，可抑制扬声器在使用过程中水平摇摆，有效抑制扬声器摇摆现象。
请参阅图2至图5，音圈33位于磁间隙24内，磁碗21包括靠近上音膜31顶板211、与磁钢22固定连接的底板212以及连接顶板211和底板212的环形侧板213，磁碗21具有由顶板211、底板212和环形侧板213围合形成的容置空间214以及若干个从顶板211一侧朝底板212一侧依次贯穿顶板211和环形侧板213并与容置空间214相连通的穿孔215，音圈33、磁钢22和极芯23都位于容置空间214内。
本实施例中，磁钢22的数量为两个，极芯23和两个磁钢22叠放于磁碗21内，且极芯23位于两磁钢22之间，这种设置方式具有增加磁间隙24磁场的作用，音圈33位于磁碗21内并套设于磁钢22和极芯23外，第二骨架35的一端与上音膜31的球顶311连接，优选地，第二环形架352粘接于上音膜31，第二骨架35的另一端穿过穿孔215后将音圈33悬置于磁间隙24内，且第二骨架35在音圈33的带动下可相对磁碗21沿垂直于扬声器的振动方向运动，以便于音圈33能通过第二骨架35在磁路系统20能产生一个交变的推动力。
作为优选地实施方式，第二骨架35包括位于容置空间214内并与音圈33连接的第一环形架351、位于磁碗21外并与上音膜31连接的第二环形架352以及若干个间隔设置的连接杆353，连接杆353的一端与第一环形架351连接，连接杆353的另一端穿过穿孔215后与第二环形架352连接。
本实施例中磁碗21包括上框体216及与上框体216相固定的下框体217，上框体216和下框体217围合形成所述容置空间214，穿孔215从上框体216的顶部沿磁碗21的轴向朝下框体217的底部凹设延伸，第二骨架35为柔性材质制作，在具体安装时，可先将上框体216顺着两个连接杆353之间的间隙挤入第二骨架35内，再将音圈33固定于磁碗21内。
作为优选地实施方式，顶板211之朝向底板212的一侧、底板212之朝向顶板211的一侧均凸设有凸起218，两凸起218分别抵接于两磁钢22，避免磁钢22和极芯23在扬声器工作时相对磁碗21出现晃动。
作为优选地实施方式，凸台122还具有若干个间隔设置并与容纳腔123相连通的避让孔124，避让孔124与穿孔215对应设置，以避免第二骨架35与凸台122发生 碰撞。
作为优选地实施方式，为了使第一骨架34与下音膜32之间连接更稳定，振动系统30还包括夹设于第一骨架34与下音膜32之间的环形垫片36。
请参阅图2至图6，本实施例中，盆架10的围板13上贯穿设有若干出声孔131，当音圈33通入交变电流时，在磁路系统20的磁场作用下，音圈33会受到一个交变的推动力，产生交变运动，从而通过第二骨架35带动上音膜31一同振动，由于第一骨架34与上音膜31中球顶311一体成型，上音膜31驱动第一骨架34振动，间接将带动下音膜32振动，从而产生声音。
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 (11)

  1. 一种扬声器，包括具有收容空间的盆架以及收容于所述收容空间内的磁路系统和振动系统，所述磁路系统包括固定于所述盆架的磁碗，所述振动系统包括固定于所述盆架用于振动发声的上音膜，其特征在于：所述上音膜包括位于中间的位置的球顶以及环绕所述球顶并固定于所述盆架的折环，所述折环包括与所述球顶固定连接的第一环形端部，所述球顶固定于所述第一环形端部朝向所述收容空间的一侧，所述振动系统还包括自所述球顶边缘向所述收容空间内弯折延伸的第一骨架以及与所述上音膜间隔设置的下音膜，所述下音膜呈环形，所述下音膜具有与所述第一骨架连接且悬置于所述收容空间内的第二环形端部以及固定于所述盆架上的第三环形端部。
  2. 根据权利要求1所述的扬声器，其特征在于：所述折环还包括与所述盆架连接的第四环形端部以及连接所述第一环形端部与所述第四环形端部的第一折环部，所述第一折环部朝向远离所述下音膜的方向凹陷。
  3. 根据权利要求2所述的扬声器，其特征在于：所述球顶的外径大于所述第一环形端部的内径且小于所述第一环形端部的外径。
  4. 根据权利要求2所述的扬声器，其特征在于：所述下音膜还具有连接所述第二环形端部与所述第三环形端部的第二折环部，所述第二折环部的凹陷方向与所述第一折环部的凹陷方向相反。
  5. 根据权利要求1所述的扬声器，其特征在于：所述振动系统还包括音圈及第二骨架，所述磁路系统还包括位于所述磁碗内且与所述磁碗间隔设置形成磁间隙的磁钢，所述第二骨架的一端与所述球顶连接、另一端将所述音圈悬置于所述磁间隙内。
  6. 根据权利要求5所述的扬声器，其特征在于：所述第二骨架包括与所述音圈连接的第一环形架、与所述上音膜固定连接的第二环形架以及若干个间隔设置的连接杆，所述连接杆的一端与所述第一 环形架连接、另一端与所述第二环形架连接。
  7. 根据权利要求6所述的扬声器，其特征在于：所述磁碗包括靠近所述上音膜的顶板、与所述磁钢固定连接的底板以及连接顶板和底板的环形侧板，所述磁碗具有由所述顶板、底板与环形侧板围合形成的容置空间以及若干个从所述顶板一侧朝所述底板一侧依次贯穿所述顶板和所述环形侧板并与所述容置空间相连通的穿孔，所述连接杆的一端与所述第一环形架连接、另一端穿过所述穿孔后与所述第二环形架连接。
  8. 根据权利要求7所述的扬声器，其特征在于：所述盆架包括位于中间位置的承载板和自所述承载板边缘朝所述上音膜弯折延伸的围板，所述围板和所述承载板围合形成所述收容空间，所述承载板之朝向所述收容空间的一侧凸设有环形台阶，所述第三环形端部固定于所述环形台阶上。
  9. 根据权利要求8所述的扬声器，其特征在于：所述承载板之朝向所述收容空间的一侧还凸设有位于所述环形台阶内的凸台，所述凸台具有振动方向贯穿所述凸台的容纳腔，所述磁碗收容于所述容纳腔内。
  10. 根据权利要求9所述的扬声器，其特征在于：所述凸台还具有若干个间隔设置并与所述容纳腔相连通的避让孔，所述避让孔与所述穿孔对应设置。
  11. 根据权利要求1所述的扬声器，其特征在于：所述振动系统还包括夹设于所述第一骨架与所述下音膜之间的环形垫片。
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