WO2020034707A1 - 扬声器 - Google Patents

扬声器 Download PDF

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Publication number
WO2020034707A1
WO2020034707A1 PCT/CN2019/088585 CN2019088585W WO2020034707A1 WO 2020034707 A1 WO2020034707 A1 WO 2020034707A1 CN 2019088585 W CN2019088585 W CN 2019088585W WO 2020034707 A1 WO2020034707 A1 WO 2020034707A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
flexible circuit
elastic arm
circuit board
elastic
Prior art date
Application number
PCT/CN2019/088585
Other languages
English (en)
French (fr)
Inventor
刘晓东
Original Assignee
瑞声声学科技(深圳)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of WO2020034707A1 publication Critical patent/WO2020034707A1/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
    • H04R9/06—Loudspeakers
    • 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
    • H04R9/041—Centering
    • H04R9/043—Inner suspension or damper, e.g. spider
    • 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
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • 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
    • 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
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • 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
    • H04R9/045—Mounting
    • 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
    • H04R9/046—Construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/207—Shape aspects of the outer suspension of loudspeaker diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the utility model relates to the field of electro-acoustic conversion, in particular to a speaker.
  • a related art speaker includes a basin frame, and a vibration system and a magnetic circuit system fixed to the basin frame.
  • the vibration system includes a first diaphragm, and the first diaphragm is driven to vibrate under the first diaphragm.
  • the elastic arm uses two sections of the elastic arm to bend in the opposite direction to increase the length of the elastic arm. However, the connection of the two sections of the elastic arm to the reverse bending is set within the range covered by the second diaphragm.
  • the purpose of the present utility model is to overcome the above technical problems, and provide a loudspeaker that does not easily collide with the second diaphragm and has good acoustic performance.
  • the present invention provides a speaker, which includes a basin frame and a vibration system and a magnetic circuit system fixed to the basin frame.
  • the vibration system includes a first diaphragm and a first diaphragm.
  • a voice coil that drives the first diaphragm to vibrate and emit sound below, and an elastic support member that elastically supports the voice coil under the voice coil, the elastic support member includes a flexible circuit board and a flexible circuit board stacked on the flexible circuit board.
  • a second diaphragm, the second diaphragm includes a first fixing portion fixedly connected to the voice coil, a second fixing portion spaced apart from the first fixing portion and fixedly connected to the basin frame, and a connection station
  • the flexible circuit board includes a first connecting portion fixedly connected to the voice coil, and is spaced apart from the first connecting portion and fixed to the basin frame; A second connecting portion connected thereto and a spring arm connecting the first connection portion and the second connection portion, the spring arm including a first spring arm extending from the first connection portion and a reaction of the first spring arm.
  • the second diaphragm is disposed below the flexible circuit board, and the folded ring portion is a downward convex structure protruding in a direction away from the first diaphragm.
  • the second diaphragm is disposed above the flexible circuit board, and the folded ring portion is a convex structure protruding toward the direction of the first diaphragm.
  • two elastic support members are provided, and the two elastic support members are symmetrically disposed on opposite sides of the basin frame.
  • two of the elastic arms of each of the flexible circuit boards are provided, and the two elastic arms are disposed symmetrically about a central axis of the flexible circuit board.
  • an orthographic projection of the reverse bending connection point of the first elastic arm and the second elastic arm in the direction of the folded ring portion is located in the folded ring portion Beyond the range, the elastic arm can avoid the folded ring portion of the second diaphragm when the elastic arm vibrates, avoid the collision between the flexible circuit board and the second diaphragm, and increase the vibration space of the elastic arm , Improving the acoustic performance of the speaker.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a speaker provided by the present utility model
  • FIG. 2 is an exploded structure diagram of the speaker shown in FIG. 1;
  • FIG. 2 is an exploded structure diagram of the speaker shown in FIG. 1;
  • FIG. 3 is a cross-sectional view of the speaker shown in FIG. 1 along the A-A line;
  • FIG. 4 is a front view of the flexible circuit board shown in FIG. 2;
  • FIG. 5 is a front view of a matching structure of a second diaphragm and a flexible circuit board in a speaker provided by the present invention.
  • the present invention provides a speaker 100.
  • the speaker 100 includes an upper cover 1, a basin frame 2 which cooperates with the upper cover 1 to form a receiving space 2, and is fixed to the basin frame 2.
  • the basin frame 2 has a rectangular frame structure, and includes two long sides 21 arranged in parallel and spaced apart from each other and two short sides 22 provided on two ends of the long side 21 and connecting the two long sides 21.
  • the long side 21 and the short side 22 are sequentially connected end to end.
  • the upper cover 1 is covered on the basin frame 1 and cooperates with the basin frame 1 to form a containing space.
  • the vibration system 2 and the magnetic circuit system 3 are contained in the containing space.
  • the vibration system 3 is used for vibration and sound generation.
  • the vibration system 3 includes a first diaphragm 31 for vibration and sound, a voice coil 32 located under the first diaphragm 31 to drive the first diaphragm 31 to vibrate and sound, and a voice coil located on the voice coil.
  • the elastic support 33 of the voice coil 32 is elastically supported below the 32.
  • the number of the elastic supporting members 33 is two, and the two elastic supporting members 33 are symmetrically disposed on opposite sides of the basin frame 2. Specifically, the elastic supporting member 33 is fixedly connected to the short side 22 of the basin frame 2.
  • the elastic support member 33 includes a flexible circuit board 331 and a second diaphragm 332 stacked on the flexible circuit board 331.
  • the flexible circuit board 331 is used to support the voice coil 32 and is used to electrically connect the voice coil 32 to an external power source; the second diaphragm 332 is used to strengthen the vibration of the first diaphragm 31, and The polarization of the first diaphragm 31 can be prevented.
  • the flexible circuit board 331 includes a first connection portion 3311 that is fixedly connected to the voice coil 32, a second connection portion 3312 that is disposed at a distance from the first connection portion 3311 and is fixedly connected to the basin frame 2, and a connection station.
  • two elastic arms 3313 of each of the flexible circuit boards 331 are provided, and two elastic arms 3313 are symmetrically disposed about a central axis of the flexible circuit board 331.
  • the two elastic arms 3313 cooperate with the first connection portion 3311 and the second connection portion 3312 to form a closed loop structure, and share the load on the flexible circuit board 331 with each other, which can effectively increase the load of the flexible circuit board 331 ability.
  • the elastic arm 3313 includes a first elastic arm 3314 extending from the first connecting portion 3311 and a second elastic arm connected to the second connecting portion 3312 by the first elastic arm 3314 being bent in a reverse direction. 3315.
  • the first elastic arm 3314 and the second elastic arm 3315 are integrally formed and smoothly transitioned.
  • the second diaphragm 332 includes a first fixing portion 3321 fixedly connected to the voice coil 32, a second fixing portion 3322 spaced from the first fixing portion 3321, and a connection between the first fixing portion 3321 and the first fixing portion 3321.
  • the folded ring portion 3323 of the second fixing portion 3322 is described.
  • the second diaphragm 332 can be disposed below the flexible circuit board 331.
  • the folded ring portion 3323 is a downward convex structure protruding away from the first diaphragm 31;
  • the second diaphragm 332 may also be disposed above the flexible circuit board 331.
  • the folded ring portion 3323 is a convex structure protruding toward the direction close to the first diaphragm 31.
  • the second diaphragm 332 is disposed below the flexible circuit board 331.
  • the elastic arm 3313 When the elastic arm 3313 vibrates, the maximum deformation occurs at the reverse bending connection of the first elastic arm 3314 and the second elastic arm 3315, and the first elastic arm 3314 and the second elastic arm
  • the orthographic projection of the reverse bending connection of 3315 in the direction of the folded ring portion 3323 is outside the range of the folded ring portion 3323, so that the elastic arm 3313 can avoid the folding of the second diaphragm 332 when it vibrates
  • the ring portion 3323 prevents the flexible circuit board 331 from colliding with the second diaphragm 332, increases the vibration space of the elastic arm 3313, and improves the acoustic performance of the speaker 100.
  • the magnetic circuit system 4 is used to drive the vibration system 3 to generate sound.
  • the magnetic circuit system 4 includes a yoke 41 fixedly connected to the basin frame 2, a main magnetic steel 42 arranged in the center of the yoke 41, and a main magnetic sticker attached to the surface of the main magnetic steel 42.
  • a magnetic gap is formed between the main magnetic steel 42 and the auxiliary magnetic steel 44, and the voice coil 32 is suspended in the magnetic gap.
  • the main pole core 43 and the sub pole core 45 are made of a magnetically conductive material, and play a role of magnetic permeability.
  • the conductive terminal 5 is connected to the flexible circuit board 331 and an external power source, so that the circuit of the speaker 100 is conducted.
  • the number of the conductive terminals 5 is two, and the two conductive terminals 5 are located on the same side of the basin frame 2.
  • the orthographic projection of the reverse bending connection point of the first elastic arm 3314 and the second elastic arm 3315 in the direction of the folding ring portion 3323 is located at Outside the range of the folded ring portion 3323, when the elastic arm 3313 vibrates, the folded ring portion 3323 of the second diaphragm 332 can be avoided, and collision between the flexible circuit board 331 and the second diaphragm 332 can be avoided. , The vibration space of the elastic arm 3313 is increased, and the acoustic performance of the speaker 100 is improved.

Abstract

本实用新型提供了一种扬声器。所述扬声器包括盆架、振动系统和磁路系统，振动系统包括第一振膜、音圈以及弹性支撑件，弹性支撑件包括柔性电路板和第二振膜，第二振膜包括第一固定部、第二固定部以及连接第一固定部和第二固定部的折环部，柔性电路板包括第一连接部、与第一连接部间隔设置并与所述盆架固接的第二连接部以及连接第一连接部和第二连接部的弹力臂，弹力臂包括自第一连接部延伸的第一弹力臂和由第一弹力臂反向弯折延伸的与第二连接部连接的第二弹力臂，第一弹力臂和第二弹力臂的反向弯折连接处向折环部方向的正投影位于折环部的范围之外。本实用新型提供的扬声器中所述弹力臂振动时，可以避开所述第二振膜，增加弹力臂的振动空间，改善所述扬声器的声学性能。

Description

扬声器 技术领域
本实用新型涉及电声转换领域，尤其涉及一种扬声器。
 背景技术
近年来随着移动通信技术的快速发展，消费者越来越多地使用带有语音功能的移动通讯设备，例如：便携式电话、掌上游戏机及手提电脑等。扬声器作为语音的播放装置，其设计好坏直接影响移动通讯设备产品的语音性能。为了满足市场对于薄型化及高音质的需求，对扬声器的柔性电路板的设计提出了更高的需求。
相关技术的扬声器，包括盆架以及固接于所述盆架的振动系统和磁路系统，所述振动系统包括第一振膜、位于所述第一振膜下方驱动所述第一振膜振动发声的音圈以及位于所述音圈下方弹性支撑所述音圈的弹性支撑件，所述弹性支撑件包括柔性电路板和与所述柔性电路板叠设的第二振膜，柔性电路板的弹力臂采用两段弹力臂反向弯折的方式来增加弹力臂长度，然而，两段弹力臂反向弯折的连接处设置在第二振膜覆盖的范围内，所述弹力臂振动时，其最大形变量发生在两段弹力臂反向弯折的连接处，极易在振动时与所述第二振膜产生碰撞，造成音差，影响扬声器的声学性能。
因此，有必要提供一种新的扬声器以解决上述缺陷。
 技术问题
本实用新型的目的是克服上述技术问题，提供一种弹力臂不易碰撞第二振膜并且声学性能良好的扬声器。
 技术解决方案
为了实现上述目的，本实用新型提供一种扬声器，其包括盆架以及固接于所述盆架的振动系统和磁路系统，所述振动系统包括第一振膜、位于所述第一振膜下方驱动所述第一振膜振动发声的音圈以及位于所述音圈下方弹性支撑所述音圈的弹性支撑件，所述弹性支撑件包括柔性电路板和与所述柔性电路板叠设的第二振膜，所述第二振膜包括与所述音圈固接的第一固定部、与所述第一固定部间隔设置并与所述盆架固接的第二固定部以及连接所述第一固定部和第二固定部的折环部，所述柔性电路板包括与所述音圈固接的第一连接部、与所述第一连接部间隔设置并与所述盆架固接的第二连接部以及连接所述第一连接部和第二连接部的弹力臂，所述弹力臂包括自所述第一连接部延伸的第一弹力臂和由所述第一弹力臂反向弯折延伸的与所述第二连接部连接的第二弹力臂，所述第一弹力臂和所述第二弹力臂的反向弯折连接处向所述折环部方向的正投影位于所述折环部的范围之外。
优选的，所述第二振膜设置于所述柔性电路板的下方，所述折环部为向远离所述第一振膜方向凸起的下凸结构。
优选的，所述第二振膜设置于所述柔性电路板的上方，所述折环部为向靠近所述第一振膜方向凸起的上凸结构。
优选的，所述弹性支撑件设有两个，两个所述弹性支撑件对称设置于所述盆架的相对两侧。
优选的，每个所述柔性电路板的所述弹力臂设有两个，两个所述弹力臂关于所述柔性电路板的中轴线对称设置。
 有益效果
与相关技术相比，本实用新型提供的扬声器中，所述第一弹力臂和所述第二弹力臂的反向弯折连接处向所述折环部方向的正投影位于所述折环部的范围之外，使得所述弹力臂振动时可以避让所述第二振膜的折环部，避免所述柔性电路板与所述第二振膜的碰撞，增加了所述弹力臂的振动空间，改善了所述扬声器的声学性能。
 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为本实用新型提供的扬声器的立体结构示意图；
图2为图1所示的扬声器的分解结构示意图；
图3为图1所示的扬声器沿A-A线的剖视图；
图4为图2所示的柔性电路板的正视图；
图5为本实用新型提供的扬声器中，第二振膜与柔性电路板配合结构的正视图。
 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力臂实施例，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。
请结合参阅图1至图5，本实用新型提供一种扬声器100，所述扬声器100包括上盖1、与所述上盖1配合形成收容空间的盆架2、固接于所述盆架2的振动系统3、用于驱动所述振动系统3振动发声的磁路系统4及与外界电路连接的导电端子5。
所述盆架2呈矩形框状结构，其包括两平行间隔设置的长边21及设于所述长边21的两端并连接两个所述长边21的两个短边22，所述长边21及所述短边22依次首尾相接。所述上盖1盖设于所述盆架1，并与所述盆架1配合形成收容空间，所述振动系统2和所述磁路系统3收容于所述收容空间内。
所述振动系统3用于振动发声。具体的，所述振动系统3包括用于振动发声的第一振膜31、位于所述第一振膜31的下方驱动所述第一振膜31振动发声的音圈32以及位于所述音圈32的下方弹性支撑所述音圈32的弹性支承件33。所述弹性支承件33的数量为两个，两个所述弹性支承件33对称设置于所述盆架2的相对两侧。具体的，所述弹性支承件33与盆架2的短边22固接。
所述弹性支承件33包括柔性电路板331和与所述柔性电路板331叠设的第二振膜332。所述柔性电路板331用于支撑所述音圈32，并用于所述音圈32与外界电源的电连接；所述第二振膜332用于加强所述第一振膜31的振动，并可防止所述第一振膜31的偏振。
所述柔性电路板331一端与所述音圈32固定连接，另一端与所述盆架2固定连接。所述柔性电路板331包括与所述音圈32固接的第一连接部3311、与所述第一连接部3311间隔设置并与所述盆架2固接的第二连接部3312以及连接所述第一连接部3311和所述第二连接部3312的弹力臂3313。
进一步的，每一个所述柔性电路板331的所述弹力臂3313设有两个，两个所述弹力臂3313关于所述柔性电路板331的中轴线对称设置。两个所述弹力臂3313配合所述第一连接部3311和所述第二连接部3312形成闭环结构，相互分摊所述柔性电路板331受到的负载，可以有效增加所述柔性电路板331的承载能力。
所述弹力臂3313包括自所述第一连接部3311延伸的第一弹力臂3314和由所述第一弹力臂3314反向弯折延伸的与所述第二连接部3312连接的第二弹力臂3315。所述第一弹力臂3314和所述第二弹力臂3315一体成型并平滑过渡。
所述第二振膜332包括与所述音圈32固接的第一固定部3321、与所述第一固定部3321间隔设置的第二固定部3322以及连接所述第一固定部3321和所述第二固定部3322的折环部3323。
可以理解的是，所述第二振膜332可以设置于所述柔性电路板331下方，此时，所述折环部3323为向远离所述第一振膜31方向凸起的下凸结构；所述第二振膜332还可以设置于所述柔性电路板331上方，此时，所述折环部3323为向靠近所述第一振膜31方向凸起的上凸结构。在本实施方式中，所述第二振膜332设置于所述柔性电路板331的下方。
所述弹力臂3313振动时，最大形变量发生在所述第一弹力臂3314和所述第二弹力臂3315的反向弯折连接处，所述第一弹力臂3314和所述第二弹力臂3315的反向弯折连接处向所述折环部3323方向的正投影位于所述折环部3323的范围之外，使得所述弹力臂3313振动时可以避让所述第二振膜332的折环部3323，避免所述柔性电路板331与所述第二振膜332的碰撞，增加了所述弹力臂3313的振动空间，改善了所述扬声器100的声学性能。
所述磁路系统4用于驱动所述振动系统3振动发声。具体的，所述磁路系统4包括与所述盆架2固定连接的磁轭41、组配于所述磁轭41中央的主磁钢42、贴附于所述主磁钢42表面的主极芯43、环设于所述主磁钢42周围的副磁钢44及贴设于所述副磁钢44的副极芯45。
所述主磁钢42与所述副磁钢44间隔形成磁间隙，所述音圈32悬置于所述磁间隙内。所述主极芯43和所述副极芯45由导磁材料制成，起到导磁作用。
所述导电端子5连接所述柔性电路板331与外界电源，从而实现所述扬声器100的电路导通。所述导电端子5的数量为两个，两个所述导电端子5位于所述盆架2的同一侧。
与相关技术相比，本实用新型提供的扬声器100中，所述第一弹力臂3314和所述第二弹力臂3315的反向弯折连接处向所述折环部3323方向的正投影位于所述折环部3323的范围之外，使得所述弹力臂3313振动时可以避让所述第二振膜332的折环部3323，避免所述柔性电路板331与所述第二振膜332的碰撞，增加了所述弹力臂3313的振动空间，改善了所述扬声器100的声学性能。
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 (5)

  1. 一种扬声器，包括盆架以及固接于所述盆架的振动系统和磁路系统，所述振动系统包括第一振膜、位于所述第一振膜下方驱动所述第一振膜振动发声的音圈以及位于所述音圈下方弹性支撑所述音圈的弹性支撑件，其特征在于，所述弹性支撑件包括柔性电路板和与所述柔性电路板叠设的第二振膜，所述第二振膜包括与所述音圈固接的第一固定部、与所述第一固定部间隔设置并与所述盆架固接的第二固定部以及连接所述第一固定部和第二固定部的折环部，所述柔性电路板包括与所述音圈固接的第一连接部、与所述第一连接部间隔设置并与所述盆架固接的第二连接部以及连接所述第一连接部和第二连接部的弹力臂，所述弹力臂包括自所述第一连接部延伸的第一弹力臂和由所述第一弹力臂反向弯折延伸的与所述第二连接部连接的第二弹力臂，所述第一弹力臂和所述第二弹力臂的反向弯折连接处向所述折环部方向的正投影位于所述折环部的范围之外。
  2. 根据权利要求1所述的扬声器，其特征在于，所述第二振膜设置于所述柔性电路板的下方，所述折环部为向远离所述第一振膜方向凸起的下凸结构。
  3. 根据权利要求1所述的扬声器，其特征在于，所述第二振膜设置于所述柔性电路板的上方，所述折环部为向靠近所述第一振膜方向凸起的上凸结构。
  4. 根据权利要求1所述的扬声器，其特征在于，所述弹性支撑件设有两个，两个所述弹性支撑件对称设置于所述盆架的相对两侧。
  5. 根据权利要求4所述的扬声器，其特征在于，每个所述柔性电路板的所述弹力臂设有两个，两个所述弹力臂关于所述柔性电路板的中轴线对称设置。
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