WO2022110373A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2022110373A1
WO2022110373A1 PCT/CN2020/136987 CN2020136987W WO2022110373A1 WO 2022110373 A1 WO2022110373 A1 WO 2022110373A1 CN 2020136987 W CN2020136987 W CN 2020136987W WO 2022110373 A1 WO2022110373 A1 WO 2022110373A1
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WO
WIPO (PCT)
Prior art keywords
fixed
voice coil
sound
diaphragm
skeleton
Prior art date
Application number
PCT/CN2020/136987
Other languages
English (en)
French (fr)
Inventor
宋威
金鑫
钟志威
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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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 WO2022110373A1 publication Critical patent/WO2022110373A1/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/22—Clamping rim of diaphragm or cone against seating
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • 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 electro-acoustic conversion, in particular to a sound-generating device.
  • the sound-generating device includes a basin frame, a vibration system and a magnetic circuit system.
  • the vibration system includes a diaphragm fixed on the basin frame, a voice coil that drives the vibration diaphragm, and a skeleton, and the skeleton includes a skeleton body fixed on the diaphragm and a self-skeleton.
  • the first connecting part formed by the extension of the main body, the voice coil includes a pair of first sides and a pair of second sides, the first side is provided with a damping piece, and one of the damping pieces is a flexible circuit board electrically connected to the voice coil
  • the other damping member is a symmetrical plate, the damping member includes a holding part fixed on the basin frame, a joint part fixed on the first connecting part and two elastic arms connecting the holding part and the joint part, and the two elastic arms are arranged at intervals.
  • this sound-generating device cannot fully utilize the space of the non-force arm area of the damping member.
  • the purpose of the present invention is to provide a sound-generating device, which can make full use of the non-force arm area space of the damping member.
  • the sound-generating device includes a basin frame, a vibration system and a magnetic circuit system with a magnetic gap respectively fixed on the basin frame, and the vibration system includes a vibrating membrane fixed on the basin frame, a vibrating film inserted in the basin frame,
  • the magnetic gap is used to drive the voice coil and the skeleton of the diaphragm to vibrate
  • the skeleton includes a skeleton body fixed on the diaphragm and a first connection part extending from the skeleton body to the direction away from the diaphragm, so
  • the voice coil includes a pair of first sides and a pair of second sides connected between the first sides, the first sides are provided with damping pieces, and the pair of damping pieces are respectively symmetrical plates and a flexible circuit board electrically connected with the voice coil
  • the damping member includes a holding part fixed on the basin frame, a joint part fixed on the first connecting part, and two connecting parts connecting the holding part and the
  • the elastic arms of the joint portion have a gap between the two elastic arms,
  • the convex hull extends to the frame body along the vibration direction of the diaphragm.
  • the diaphragm has a ring portion that protrudes toward the damping member, and the orthographic projection of the convex hull on the diaphragm is at least partially within the range of the ring portion, wherein the The folded ring portion is recessed in a direction away from the damping member to form a recessed portion that avoids the convex hull.
  • the convex hull encloses a receiving space on a side facing the voice coil
  • the flexible circuit board further includes an extension portion and a pad portion extending from the convex edge in sequence, and the extension portion is fixed In the protruding hull and in the receiving space, the pad portion is fixed to the frame body, and the voice coil is electrically connected to the side of the pad portion away from the frame body.
  • the magnetic circuit system includes a magnetic bowl fixed on the basin frame and a magnet portion disposed in the magnetic bowl and forming the magnetic gap with the magnetic bowl.
  • the magnetic bowl includes a bottom wall, a side wall formed by bending and extending from the periphery of the bottom wall toward the diaphragm, and an extension portion fixed on the bowl frame, and the magnet portion is fixed on the
  • the bottom wall is spaced from the side wall to form the magnetic gap
  • the side wall includes a first side wall opposite to the first side edge and spaced apart and a first side wall opposite to the second side edge and spaced apart.
  • Two side walls, the extension portion is formed by bending and extending from the second side wall in a direction away from the voice coil.
  • an avoidance groove for avoiding the land portion is provided at a position of the first side wall facing the pad portion.
  • an auxiliary diaphragm is fixed on the side of the damping member away from the basin frame, and the auxiliary diaphragm includes a first fixing portion fixed on the side of the holding portion away from the basin frame, fixed on the a second fixing part on the side of the joint part away from the first connecting part and a folded ring connecting the first fixing part and the second fixing part, the folded ring protruding in the direction away from the damping member , and the orthographic projection of the elastic arm on the auxiliary diaphragm is located within the range of the folded ring.
  • the skeleton further includes a second connecting portion extending from the skeleton main body in a direction away from the diaphragm, and the voice coil is connected to the second connecting portion.
  • a plurality of notches are formed on the second connection part, and the plurality of notches divide the second connection part into a plurality of spaced apart isolation islands, and the voice coil is fixed on the isolation islands.
  • the sound-generating device provided by the present invention is formed by arranging a protrusion formed on the first connecting portion from the side of the first connecting portion toward the voice coil and protruding in a direction away from the voice coil. a package and a convex edge formed on the joint part and protruding from the side of the joint part toward the voice coil into the gap, and the convex edge is fixed on the convex shell away from the skeleton One side of the main body, so that the skeleton can make full use of the space of the non-force arm area of the damping element by means of partial outward expansion.
  • FIG. 1 is an exploded view of Embodiment 1 of the sound-emitting device provided by the present invention.
  • FIG. 2 is a schematic structural diagram of a skeleton in the sound-emitting device shown in FIG. 1 .
  • FIG. 3 is a schematic structural diagram of a flexible circuit board in the sound-emitting device shown in FIG. 1 .
  • FIG. 4 is a schematic structural diagram of a magnetic bowl in the sound-emitting device shown in FIG. 1 .
  • FIG. 5 is a perspective view of the sounding device shown in FIG. 1 after being assembled.
  • FIG. 6 is a cross-sectional view of the sound-emitting device shown in FIG. 5 along the line A-A.
  • FIG. 7 is a cross-sectional view of the sound-emitting device shown in FIG. 5 taken along line B-B.
  • FIG. 8 is a schematic structural diagram of the assembled voice coil, skeleton and damping member in the sounding device shown in FIG. 1 .
  • FIG. 9 is a schematic structural diagram of another angle of the voice coil, the skeleton and the damping member shown in FIG. 8 .
  • FIG. 10 is a cross-sectional view of Embodiment 2 of the sound-emitting device provided by the present invention.
  • FIG. 11 is a schematic structural diagram of the diaphragm in the sound-emitting device shown in FIG. 10 .
  • the sound-generating device includes a pot frame 1 , a vibration system 3 held on the pot frame 1 respectively, and a magnetic circuit system 5 with a magnetic gap 5A, and the magnetic circuit system 5 is used for driving The vibration system 3 vibrates and emits sound.
  • the vibration system 3 includes a diaphragm 31 fixed on the basin frame 1 , a voice coil 33 inserted in the magnetic gap 5A to drive the diaphragm 31 to vibrate and produce sound, and a voice coil 33 fixed on the diaphragm 31 and connected to the diaphragm 31 .
  • the voice coil 33 is connected to an external circuit. After the voice coil 33 is energized, the voice coil 33 vibrates under the action of the magnetic field of the magnetic circuit system 5. At the same time, the voice coil 33 passes through the The frame 35 drives the diaphragm 31 to vibrate and produce sound.
  • the diaphragm 31 has a ring portion 311 .
  • the voice coil 33 includes a pair of first sides 331 and a pair of second sides 333 connected between the first sides 331 . As shown in FIG. 1 and FIG. 8 , the first side edge 331 is located in the long axis direction of the sound generating device, and the second side edge 333 is located in the short axis direction of the sound generating device.
  • the first side 331 is provided with a damping member 7 .
  • One end of the damping member 7 is fixed to the basin frame 1 , and the other end of the damping member 7 is connected to the frame 35 .
  • the voice coil 33 vibrates, it also drives the damping member 7 .
  • Part 7 vibrates together.
  • a pair of the damping members 7 are respectively a symmetrical plate 7a and a flexible circuit board 7b electrically connected to the voice coil 33 .
  • the ring portion 311 protrudes in a direction away from the damping member 7 .
  • the frame 35 includes a frame body 351 fixed to the diaphragm 31 , and a first connection portion 353 and a second connection portion 355 extending from the frame body 351 in a direction away from the diaphragm 31 .
  • the first connecting portion 353 is connected to the damping member 7
  • the voice coil 33 is connected to the second connecting portion 355 .
  • the skeleton may also not include the second connecting portion, and accordingly, the voice coil is fixed on the diaphragm or the skeleton main body of the skeleton.
  • a plurality of notches 357 are formed on the second connection part 355 , and the plurality of notches 357 separate the second connection part 355 into a plurality of spaced apart isolation islands 359 .
  • the voice coil 33 is fixed on the isolation island 359 .
  • the damping member 7 includes a holding portion 71 fixed to the basin frame 1 , a joint portion 73 fixed to the first connecting portion 353 , and two elastic arms 75 connecting the holding portion 71 and the joint portion 73 . , there is a gap 7A between the two elastic arms 75 . That is to say, both the symmetrical board 7a and the flexible circuit board 7b include the holding portion 71 , the coupling portion 73 and the two elastic arms 75 .
  • the holding part 71 and the joint part 73 of the symmetrical board 7a and the flexible circuit board 7b Besides having the same shape and structure as the elastic arm 75 , the holding portion 71 , the joint portion 73 and the elastic arm 75 of the symmetrical board 7 a and the flexible circuit board 7 b also have the same damping.
  • the symmetrical plate 7a may be made of a base material of a flexible circuit board, such as a polyimide or polyester film base material, or a non-conductive plate made of other materials.
  • the joint portion 73 protrudes into the gap 7A from the side facing the voice coil 33 to form a convex edge 731 , and the first connecting portion 353 is away from the voice coil 33 from the side facing the voice coil 33 .
  • the direction of the voice coil 33 protrudes to form a convex hull 352 , and the convex edge 731 is fixed on the side of the convex hull 352 away from the skeleton main body 351 .
  • the convex hull 352 encloses a receiving space 354 on the side facing the voice coil 33 .
  • a convex hull 352 formed on the first connecting portion 353 and protruding from one side of the first connecting portion 353 toward the voice coil 33 in a direction away from the voice coil 33 and the connecting portion 73 is provided with a convex edge 731 formed from the side of the joint portion 73 toward the voice coil 33 and protruding into the gap 7A, and the convex edge 731 is fixed to the convex hull 352 away from the skeleton One side of the main body 351, so that the frame can make full use of the space in the non-force arm area of the damping member by means of partial outward expansion.
  • the convex hull 352 extends to the frame body 351 along the vibration direction of the diaphragm 31 .
  • the flexible circuit board 7b further includes an extension portion 77 and a pad portion 79 extending from the protruding edge 731 in sequence.
  • the pad portion 79 is fixed to the frame body 351 , and the voice coil 33 is electrically connected to the side of the pad portion 79 away from the frame body 351 .
  • the flexible circuit board 7b plays a role of supporting and fixing the vibration system 3; There are pads (not shown in the figure), and conductive paths are provided in the elastic arm 75 and the joint portion 73 to electrically connect the holding portion 71 and the pads on the pad portion 79 .
  • the pads on the pad portion 79 are connected to the leads of the voice coil 33 to electrically connect the voice coil 33, and the pads on the holding portion 71 are connected to external circuits, so that the voice coil 33 is electrically connected to the external circuit through the flexible circuit board 7b.
  • the electrical signal of the external circuit is transmitted to the voice coil 33 through the flexible circuit board 7b.
  • an auxiliary diaphragm 9 is fixed on the side of the damping member 7 away from the basin frame 1 .
  • the auxiliary diaphragm 9 includes a first fixing portion 91 fixed to the side of the holding portion 71 away from the basin frame 1 , and a second fixing portion 91 fixed to the side of the joint portion 73 away from the first connecting portion 353 . part 93 and a fold ring 95 connecting the first fixing part 91 and the second fixing part 93, the fold ring 95 protrudes in the direction away from the damping member 7, and the elastic arm 75 is in the
  • the orthographic projection on the auxiliary diaphragm 9 is located within the range of the folding ring 95 .
  • the magnetic circuit system 5 includes a magnetic bowl 51 fixed on the basin frame 1 and a magnet portion 53 disposed in the magnetic bowl 51 and forming the magnetic gap 5A with the magnetic bowl 51 . That is to say, the magnetic circuit system 5 is a single magnetic circuit structure. In the single magnetic circuit structure, the skeleton makes full use of the space of the non-force arm area of the damping member by means of partial outward expansion, so that the size of the voice coil 33 can be increased. maximized, thereby helping to improve the sound-emitting performance of the sound-emitting device.
  • the magnetic bowl 51 includes a bottom wall 511 , a side wall 513 formed by bending and extending from the periphery of the bottom wall 511 toward the vibrating membrane 31 , and an extension portion 515 fixed to the basin frame 1 .
  • the magnet portion 53 The magnetic gap 5A is formed by being fixed on the bottom wall 511 and spaced apart from the side wall 513 .
  • the sidewall 513 includes a first sidewall 517 opposite to the first sidewall 331 and spaced apart, and a second sidewall 519 opposite to the second sidewall 333 and spaced apart.
  • the second side wall 519 is bent and extended in a direction away from the voice coil 33 .
  • An escape groove 518 for avoiding the land portion 79 is defined on the first side wall 517 at a position facing the land portion 79 .
  • the magnet portion 53 includes a permanent magnet 531 fixed on the bottom wall 511 and a pole core fixed on the side of the permanent magnet 531 away from the bottom wall 511 533.
  • the permanent magnet may be a natural magnet or an artificial magnet (eg, magnetic steel); the pole core 533 is made of a magnetically conductive material, so that the magnetic flux in the magnetic gap 5A can be enhanced.
  • the magnet portion 53 may only be a permanent magnet, or may be formed by stacking multiple permanent magnets and multiple pole cores.
  • the only difference between the second embodiment and the first embodiment is that the ring portion 311 of the diaphragm 31 protrudes toward the damping member 7 , and the convex hull 352 is in the vibration
  • the orthographic projection on the membrane 31 is at least partially within the range of the folded ring portion 311 , wherein the folded ring portion 311 is recessed in the direction away from the damping member 7 to form a recessed portion 313 that avoids the convex hull 352 .

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

Abstract

本发明提供了一种发声器件，其包括盆架、振动系统和磁路系统，振动系统包括振膜、驱动振膜振动的音圈以及骨架，骨架包括固定于振膜的骨架主体以及自骨架主体延伸形成的第一连接部，音圈包括一对第一侧边及一对第二侧边，第一侧边设有阻尼件，且一对阻尼件分别为对称板和与音圈电连接的柔性电路板，阻尼件包括固持于盆架的固持部、固定于第一连接部的结合部及两个连接固持部和结合部的弹性臂，两个弹性臂之间具有间隙，结合部向所述间隙内凸起形成凸边，第一连接部向远离音圈的方向凸起形成凸包，凸边固定于凸包。本发明提供的发声器件可以充分利用阻尼件的非力臂区域空间。

Description

发声器件 技术领域
本发明涉及电声转换领域，尤其涉及一种发声器件。
 背景技术
为适应各种音响设备与信息通信设备的小型化、多功能化发展，要求该类设备中所使用的发声器件对应更加趋于小型化，使所述发声器件与周边其他元件的配合更加紧凑。特别随着移动电话轻薄化发展的需求，对其中所使用的发声器件的质量要求也越来越高。
相关技术中，发声器件包括盆架、振动系统和磁路系统，振动系统包括固持于盆架的振膜、驱动振膜振动的音圈以及骨架，骨架包括固定于振膜的骨架主体以及自骨架主体延伸形成的第一连接部，音圈包括一对第一侧边及一对第二侧边，第一侧边设有阻尼件，且其中一阻尼件为与音圈电连接的柔性电路板，另一阻尼件为对称板，阻尼件包括固持于盆架的固持部、固定于第一连接部的结合部及两个连接固持部和结合部的弹性臂，两个弹性臂间隔设置。然而，这种发声器件不能充分利用阻尼件的非力臂区域空间。
因此，实有必要提供一种新的发声器件解决上述问题。
 技术问题
本发明的目的在于提供一种发声器件，该发声器件可以充分利用阻尼件的非力臂区域空间。
 技术解决方案
本发明提供的发声器件，包括盆架以及分别固持于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固持于所述盆架的振膜、插设于所述磁间隙以驱动所述振膜振动的音圈以及骨架，所述骨架包括固定于所述振膜的骨架主体以及自所述骨架主体向远离所述振膜方向延伸形成的第一连接部，所述音圈包括一对第一侧边及连接所述第一侧边之间的一对第二侧边，所述第一侧边设有阻尼件，且一对所述阻尼件分别为对称板和与所述音圈电连接的柔性电路板，所述阻尼件包括固持于所述盆架的固持部、固定于所述第一连接部的结合部及两个连接所述固持部和所述结合部的弹性臂，两个所述弹性臂之间具有间隙，所述结合部自其朝向所述音圈的一侧向所述间隙内凸起形成凸边，所述第一连接部自其朝向所述音圈的一侧向远离所述音圈的方向凸起形成凸包，所述凸边固定于所述凸包远离所述骨架主体的一侧。
优选地，所述凸包沿所述振膜的振动方向延伸至所述骨架主体。
优选地，所述振膜具有向靠近所述阻尼件方向凸起的折环部，所述凸包在所述振膜上的正投影至少部分位于所述折环部的范围内，其中，所述折环部向背离所述阻尼件方向凹陷形成有避让所述凸包的凹陷部。
优选地，所述凸包在朝向所述音圈的一侧围合形成收容空间，所述柔性电路板还包括自所述凸边依次延伸形成的延伸部和焊盘部，所述延伸部固定于所述凸包并位于所述收容空间内，所述焊盘部固定于所述骨架主体，所述音圈电连接于所述焊盘部背离所述骨架主体的一侧。
优选地，所述磁路系统包括固持于所述盆架的磁碗以及设于所述磁碗内并与所述磁碗之间形成所述磁间隙的磁体部。
优选地，所述磁碗包括底壁、自所述底壁周缘向所述振膜方向弯折延伸形成的侧壁以及固定于所述盆架的延展部，所述磁体部固设于所述底壁并与所述侧壁间隔形成所述磁间隙，所述侧壁包括与所述第一侧边相对且间隔设置的第一侧壁以及与所述第二侧边相对且间隔设置的第二侧壁，所述延展部自所述第二侧壁向远离所述音圈的方向弯折延伸形成。
优选地，所述第一侧壁正对所述焊盘部的位置上开设有避让所述焊盘部的避让槽。
优选地，所述阻尼件远离所述盆架的一侧固设有辅助振膜，所述辅助振膜包括固定于所述固持部远离所述盆架一侧的第一固定部、固定于所述结合部远离所述第一连接部一侧的第二固定部及连接所述第一固定部和所述第二固定部的折环，所述折环向背离所述阻尼件的方向凸起，且所述弹性臂在所述辅助振膜上的正投影位于所述折环的范围内。
优选地，所述骨架还包括自所述骨架主体向远离所述振膜方向延伸形成的第二连接部，所述音圈连接于所述第二连接部。
优选地，所述第二连接部上形成有多个豁口，多个所述豁口将所述第二连接部分隔为多个间隔设置的隔离岛，所述音圈固定于所述隔离岛上。
 有益效果
与相关技术相比，本发明提供的发声器件通过在所述第一连接部上设置自所述第一连接部朝向所述音圈的一侧向远离所述音圈的方向凸起形成的凸包以及在所述结合部上设置自所述结合部朝向所述音圈的一侧向所述间隙内凸起形成的凸边，且将所述凸边固定于所述凸包远离所述骨架主体的一侧，从而使得骨架通过局部外扩的方式而充分利用阻尼件的非力臂区域空间。
 附图说明
图1为本发明提供的发声器件实施例一的分解图。
图2为图1所示发声器件中骨架的结构示意图。
图3为图1所示发声器件中柔性电路板的结构示意图。
图4为图1所示发声器件中磁碗的结构示意图。
图5为图1所示发声器件组装后的立体图。
图6为图5所示发声器件沿A-A线的剖视图。
图7为图5所示发声器件沿B-B线的剖视图。
图8为图1所示发声器件中音圈、骨架及阻尼件组装后的结构示意图。
图9为图8所示音圈、骨架及阻尼件另一角度的结构示意图。
图10为本发明提供的发声器件实施例二的剖视图。
图11为图10所示发声器件中振膜的结构示意图。
 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，所描述的实施例仅仅是本发明一部份实施例，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他实施例，都属于本发明保护的范围。
如图1至图9所示，所述发声器件包括盆架1以及分别固持在所述盆架1的振动系统3和具有磁间隙5A的磁路系统5，所述磁路系统5用于驱动所述振动系统3振动发声。
所述振动系统3包括固持于所述盆架1的振膜31、插设于所述磁间隙5A以驱动所述振膜31振动发声的音圈33以及固定于所述振膜31并与所述音圈33连接的骨架35。其中，所述音圈33与外部电路连接，所述音圈33通电后，所述音圈33在所述磁路系统5磁场的作用下振动，与此同时，所述音圈33通过所述骨架35驱动所述振膜31振动发声。
所述振膜31具有折环部311。
所述音圈33包括一对第一侧边331及连接于所述第一侧边331之间的一对第二侧边333。如图1和图8所示，所述第一侧边331位于发声器件的长轴方向上，所述第二侧边333位于发声器件的短轴方向上。
所述第一侧边331设有阻尼件7，所述阻尼件7的一端固定于所述盆架1，其另一端与所述骨架35连接，所述音圈33振动时还带动所述阻尼件7一同振动。其中，一对所述阻尼件7分别为对称板7a和与所述音圈33电连接的柔性电路板7b。
在本实施例中，所述折环部311向背离所述阻尼件7方向凸起。
所述骨架35包括固定于所述振膜31的骨架主体351以及自所述骨架主体351向远离所述振膜31方向延伸形成的第一连接部353和第二连接部355。所述第一连接部353与所述阻尼件7连接，所述音圈33连接于所述第二连接部355。
可以理解的是，在其他实施方式中，所述骨架也可以不包括第二连接部，相应地，所述音圈固定于振膜或所述骨架的骨架主体上。
在本实施例中，所述第二连接部355上形成有多个豁口357，多个所述豁口357将所述第二连接部355分隔为多个间隔设置的隔离岛359，所述音圈33固定于所述隔离岛359上。通过设置多个所述豁口357，使得所述音圈33固定于所述隔离岛359上后，所述音圈33与所述第二连接部355之间具有泄漏通道，泄漏通道在发声器件振动时可以平衡发声器件内的气压。
所述阻尼件7包括固持于所述盆架1的固持部71、固定于所述第一连接部353的结合部73及两个连接所述固持部71和所述结合部73的弹性臂75，两个所述弹性臂75之间具有间隙7A。也就是说，所述对称板7a和所述柔性电路板7b均包括所述固持部71、所述结合部73及两个所述弹性臂75。
为了保证所述对称板7a和所述柔性电路板7b对所述骨架35的弹性支撑力的平衡，所述对称板7a和所述柔性电路板7b的所述固持部71、所述结合部73及所述弹性臂75具有相同的形状构造外，所述对称板7a和所述柔性电路板7b的所述固持部71、所述结合部73及所述弹性臂75还具有相同的阻尼。在本实施例中，所述对称板7a可以为由柔性电路板的基材材料制成，如聚酰亚胺或聚酯薄膜基材，也可以为由其他材料制成的非导电板。
所述结合部73自其朝向所述音圈33的一侧向所述间隙7A内凸起形成凸边731，所述第一连接部353自其朝向所述音圈33的一侧向远离所述音圈33的方向凸起形成凸包352，所述凸边731固定于所述凸包352远离所述骨架主体351的一侧。其中，所述凸包352在朝向所述音圈33的一侧围合形成收容空间354。 通过在所述第一连接部353上设置自所述第一连接部353朝向所述音圈33的一侧向远离所述音圈33的方向凸起形成的凸包352以及在所述结合部73上设置自所述结合部73朝向所述音圈33的一侧向所述间隙7A内凸起形成的凸边731，且将所述凸边731固定于所述凸包352远离所述骨架主体351的一侧，从而使得骨架通过局部外扩的方式而充分利用阻尼件的非力臂区域空间。
在本实施例中，所述凸包352沿所述振膜31的振动方向延伸至所述骨架主体351。
所述柔性电路板7b还包括自所述凸边731依次延伸形成的延伸部77和焊盘部79，所述延伸部77固定于所述凸包352并位于所述收容空间354内，所述焊盘部79固定于所述骨架主体351，所述音圈33电连接于所述焊盘部79背离所述骨架主体351的一侧。一方面，所述柔性电路板7b起支撑固定所述振动系统3的作用，另一方面所述柔性电路板7b的所述固持部71、所述延伸部77及所述焊盘部79上均设有焊盘（图未示），所述弹性臂75和所述结合部73内设有导电路径以电性连接所述固持部71和所述焊盘部79上的焊盘，其中，所述焊盘部79上的焊盘与所述音圈33的引线连接起电性连接所述音圈33的作用，所述固持部71上的焊盘与外部电路连接，以使得所述音圈33通过所述柔性电路板7b与外部电路电连接，发声器件工作时，外部电路的电信号通过所述柔性电路板7b传输至所述音圈33。
在本实施例中，所述阻尼件7远离所述盆架1的一侧固设有辅助振膜9。
所述辅助振膜9包括固定于所述固持部71远离所述盆架1一侧的第一固定部91、固定于所述结合部73远离所述第一连接部353一侧的第二固定部93及连接所述第一固定部91和所述第二固定部93的折环95，所述折环95向背离所述阻尼件7的方向凸起，且所述弹性臂75在所述辅助振膜9上的正投影位于所述折环95的范围内。
所述磁路系统5包括固持于所述盆架1的磁碗51以及设于所述磁碗51内并与所述磁碗51之间形成所述磁间隙5A的磁体部53。也就是说，所述磁路系统5为单磁路结构，在单磁路结构中，骨架通过局部外扩的方式而充分利用阻尼件的非力臂区域空间，可使所述音圈33的尺寸最大化，从而有利于提高发声器件的发声性能。
所述磁碗51包括底壁511、自所述底壁511周缘向所述振膜31方向弯折延伸形成的侧壁513以及固定于所述盆架1的延展部515，所述磁体部53固设于所述底壁511并与所述侧壁513间隔形成所述磁间隙5A。
所述侧壁513包括与所述第一侧边331相对且间隔设置的第一侧壁517以及与所述第二侧边333相对且间隔设置的第二侧壁519，所述延展部515自所述第二侧壁519向远离所述音圈33的方向弯折延伸形成。
所述第一侧壁517正对所述焊盘部79的位置上开设有避让所述焊盘部79的避让槽518。
如图1、图6及图7所示，所述磁体部53包括固设于所述底壁511的永磁体531及固设于所述永磁体531远离所述底壁511一侧的极芯533。
其中，所述永磁体可以是天然磁体，也可以是人造磁体（例如，磁钢）；所述极芯533由导磁材料制成，从而可以增强所述磁间隙5A内的磁通量。
可以理解的是，在其他实施方式中，所述磁体部53可以仅为永磁体，也可以有多个永磁体和多个极芯叠加形成。
实施例二
请参阅图10和图11，实施例二与实施例一的区别仅在于：所述振膜31的折环部311向靠近所述阻尼件7方向凸起，所述凸包352在所述振膜31上的正投影至少部分位于所述折环部311的范围内，其中，所述折环部311向背离所述阻尼件7方向凹陷形成有避让所述凸包352的凹陷部313。
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 (10)

  1. 一种发声器件，包括盆架以及分别固持于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固持于所述盆架的振膜、插设于所述磁间隙以驱动所述振膜振动的音圈以及骨架，所述骨架包括固定于所述振膜的骨架主体以及自所述骨架主体向远离所述振膜方向延伸形成的第一连接部，所述音圈包括一对第一侧边及连接所述第一侧边之间的一对第二侧边，所述第一侧边设有阻尼件，且一对所述阻尼件分别为对称板和与所述音圈电连接的柔性电路板，所述阻尼件包括固持于所述盆架的固持部、固定于所述第一连接部的结合部及两个连接所述固持部和所述结合部的弹性臂，两个所述弹性臂之间具有间隙，其特征在于，所述结合部自其朝向所述音圈的一侧向所述间隙内凸起形成凸边，所述第一连接部自其朝向所述音圈的一侧向远离所述音圈的方向凸起形成凸包，所述凸边固定于所述凸包远离所述骨架主体的一侧。
  2. 根据权利要求1所述的发声器件，其特征在于，所述凸包沿所述振膜的振动方向延伸至所述骨架主体。
  3. 根据权利要求2所述的发声器件，其特征在于，所述振膜具有向靠近所述阻尼件方向凸起的折环部，所述凸包在所述振膜上的正投影至少部分位于所述折环部的范围内，其中，所述折环部向背离所述阻尼件方向凹陷形成有避让所述凸包的凹陷部。
  4. 根据权利要求2所述的发声器件，其特征在于，所述凸包在朝向所述音圈的一侧围合形成收容空间，所述柔性电路板还包括自所述凸边依次延伸形成的延伸部和焊盘部，所述延伸部固定于所述凸包并位于所述收容空间内，所述焊盘部固定于所述骨架主体，所述音圈电连接于所述焊盘部背离所述骨架主体的一侧。
  5. 根据权利要求4所述的发声器件，其特征在于，所述磁路系统包括固持于所述盆架的磁碗以及设于所述磁碗内并与所述磁碗之间形成所述磁间隙的磁体部。
  6. 根据权利要求5所述的发声器件，其特征在于，所述磁碗包括底壁、自所述底壁周缘向所述振膜方向弯折延伸形成的侧壁以及固定于所述盆架的延展部，所述磁体部固设于所述底壁并与所述侧壁间隔形成所述磁间隙，所述侧壁包括与所述第一侧边相对且间隔设置的第一侧壁以及与所述第二侧边相对且间隔设置的第二侧壁，所述延展部自所述第二侧壁向远离所述音圈的方向弯折延伸形成。
  7. 根据权利要求6所述的发声器件，其特征在于，所述第一侧壁正对所述焊盘部的位置上开设有避让所述焊盘部的避让槽。
  8. 根据权利要求1所述的发声器件，其特征在于，所述阻尼件远离所述盆架的一侧固设有辅助振膜，所述辅助振膜包括固定于所述固持部远离所述盆架一侧的第一固定部、固定于所述结合部远离所述第一连接部一侧的第二固定部及连接所述第一固定部和所述第二固定部的折环，所述折环向背离所述阻尼件的方向凸起，且所述弹性臂在所述辅助振膜上的正投影位于所述折环的范围内。
  9. 根据权利要求1所述的发声器件，其特征在于，所述骨架还包括自所述骨架主体向远离所述振膜方向延伸形成的第二连接部，所述音圈连接于所述第二连接部。
  10. 根据权利要求9所述的发声器件，其特征在于，所述第二连接部上形成有多个豁口，多个所述豁口将所述第二连接部分隔为多个间隔设置的隔离岛，所述音圈固定于所述隔离岛上。
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