WO2020140550A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2020140550A1
WO2020140550A1 PCT/CN2019/110857 CN2019110857W WO2020140550A1 WO 2020140550 A1 WO2020140550 A1 WO 2020140550A1 CN 2019110857 W CN2019110857 W CN 2019110857W WO 2020140550 A1 WO2020140550 A1 WO 2020140550A1
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WO
WIPO (PCT)
Prior art keywords
fixed
arm
diaphragm
sound
auxiliary
Prior art date
Application number
PCT/CN2019/110857
Other languages
English (en)
French (fr)
Inventor
胡洪建
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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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 WO2020140550A1 publication Critical patent/WO2020140550A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • 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
    • 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Definitions

  • the utility model relates to the field of sound and electricity, in particular to a sound-emitting device used in portable electronic products.
  • the sound-generating device of the related art includes a basin frame and a vibration system respectively fixed to the basin frame and a magnetic circuit system with a magnetic gap;
  • the vibration system includes a diaphragm fixed to the basin frame and connected to the basin
  • An elastic support assembly that is opposite to and spaced from the diaphragm and a voice coil that connects the diaphragm and the elastic support assembly respectively, and the voice coil is inserted in the magnetic gap to drive the vibration of the diaphragm Sound;
  • the elastic support assembly includes an elastic member and an auxiliary diaphragm connected to the elastic member, the elastic member includes a first fixed arm fixed to the basin frame, a second fixed arm connected to the voice coil And a spring arm extending from the first fixed arm to the second fixed arm.
  • the elastic member has a planar structure, that is, the first fixed arm, the second fixed arm, and the elastic arm are disposed on the same plane, and the extension length of the elastic arm is therefore limited ,
  • the fatigue resistance of the elastic member is weak, so that the reliability of the sound-emitting device is low; at the same time, during the vibration of the vibration system, the elastic arm and the auxiliary diaphragm are prone to interference, This will adversely affect the acoustic performance of the sound-generating device.
  • the purpose of the utility model is to provide a sound-generating device with good acoustic performance and high reliability.
  • the present invention provides a sound-generating device, which includes a basin frame and a vibration system respectively fixed to the basin frame and a magnetic circuit system with a magnetic gap;
  • the vibration system includes the one fixed to the basin frame A diaphragm, a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and sound, and an elastic support assembly fixed to the basin frame and facing the diaphragm and spaced apart, the elastic support assembly is fixed at An end of the voice coil away from the diaphragm;
  • the elastic support assembly includes an elastic member, the elastic member includes a first fixing arm fixed to the basin frame, and the voice coil is away from the diaphragm
  • the second fixed arm at one end and the elastic arm connecting the first fixed arm and the second fixed arm are bent to form a bending unit that protrudes toward the diaphragm.
  • the bending unit includes multiple and spaced apart, and the bending unit is in the shape of an arc.
  • the elastic support assembly further includes an auxiliary diaphragm fixed to a side of the elastic member away from the diaphragm;
  • the auxiliary diaphragm includes an arc-shaped folding ring protruding away from the diaphragm And a first connection portion and a second connection portion respectively extending from opposite sides of the folding ring, the first connection portion is fixed to the side of the first fixing arm away from the diaphragm, the second The connecting part is fixed to the side of the second fixing arm away from the diaphragm, and the folding ring is opposite to the elastic arm.
  • the elastic support assembly includes two and are respectively located on opposite sides of the voice coil.
  • the voice coil has a rectangular shape, and the two elastic support components are respectively located on both sides of the short axis of the voice coil.
  • the magnetic circuit system includes a yoke, a main magnet fixed to the yoke, and two spaced apart on opposite sides of the main magnet and forming the magnetic gap with the main magnet
  • a secondary magnet, two of the secondary magnets are respectively located on both sides of the long axis of the voice coil.
  • the magnetic circuit system further includes a main pole core covered on the main magnetic steel and a clamping plate fixed on the basin frame, the clamping plate includes a ring-shaped fixing ring fixed on the basin frame and The fixing ring respectively extends to the two secondary pole cores of the secondary magnetic steel, and the two secondary pole cores are stacked on the secondary magnetic steel respectively.
  • the elastic member is a flexible circuit board electrically connected to the voice coil.
  • a side of the yoke close to the auxiliary diaphragm is recessed in a direction away from the auxiliary diaphragm to form an escape groove, and the escape groove corresponds to the auxiliary diaphragm.
  • the escape groove is further partially recessed in a direction away from the auxiliary diaphragm to form a recessed portion, and the recessed portion corresponds to a position where the amplitude of the auxiliary diaphragm is maximum.
  • the spring arm includes a first force arm extending from an end of the first fixed arm toward the middle of the second fixed arm, and a center from the first fixed arm toward the middle of the second fixed arm
  • An extended second lever arm; the first lever arm and the second lever arm include a flat body portion and the bending unit bent from the body portion and protruding toward the diaphragm.
  • the elastic member includes a first fixing arm fixed to the basin frame, and a second fixing fixed to an end of the voice coil away from the diaphragm
  • the arm and the elastic arm connecting the first fixed arm and the second fixed arm are bent to form a bending unit protruding toward the diaphragm.
  • the length of the elastic arm is increased by the arrangement of the bending unit, and the fatigue resistance of the elastic member is improved, so that the service life of the elastic support component is high, which in turn makes
  • the sound-emitting device has high reliability; further, the bending unit is bent in a direction close to the diaphragm to avoid interference of the bending unit with the auxiliary diaphragm during the vibration process, ensuring The acoustic performance of the sound-generating device is excellent.
  • Figure 1 is a schematic diagram of the stereo structure of the sound-generating device of the present invention.
  • FIG. 2 is an exploded view of a part of the stereo structure of the sound-generating device of the present invention
  • Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
  • FIG. 4 is an exploded view of the three-dimensional structure of the elastic support assembly of the present invention.
  • the present invention provides a sound-emitting device 100, which includes a basin frame 1, a vibration system 2 and a magnetic circuit system 3.
  • the basin frame 1 is used to support the vibration system 2 and the magnetic circuit system 3.
  • the vibration system 2 includes a diaphragm 21 fixed to the basin frame 1, a voice coil 22, and an elastic support fixed to the basin frame 1 opposite to the diaphragm 21 and spaced apart Component 23, the elastic support component 23 is fixed to the end of the voice coil 22 away from the diaphragm 21.
  • the diaphragm 21 includes an intermediate dome and a folding ring extending from the edge of the dome.
  • the folding ring is an arc-shaped structure that protrudes toward the direction of the magnetic circuit system.
  • the folding ring may also be an arc-shaped structure protruding away from the magnetic circuit system.
  • the magnetic circuit system 3 has a magnetic gap 30, and the voice coil 22 is inserted into the magnetic gap 30 to drive the diaphragm 21 to vibrate and sound.
  • the elastic support assembly 23 includes an elastic member 231 and an auxiliary diaphragm 232 fixed to a side of the elastic member 231 away from the basin frame 1.
  • the elastic member 231 includes a first fixing arm 2311 fixed to the basin frame, a second fixing arm 2312 fixed to an end of the voice coil 22 away from the diaphragm 21, and connected to the first fixing
  • the arm 2311 and the elastic arm 2313 of the second arm 2312 are bent to form a bending unit 23130 protruding toward the diaphragm 21.
  • the bending unit 23130 includes a plurality of and spaced apart, and the bending unit 23130 is arc-shaped.
  • the bending shape of the bending unit 23130 is not limited to this.
  • the elastic arm 2313 includes a first force arm 23131 extending from an end of the first fixed arm 2311 toward the middle of the second fixed arm 2312, and a relative force from the first fixed arm 2311
  • a second lever arm 23132 extending from the other end toward the middle of the second fixed arm 2312; the first lever arm 23131 and the second lever arm 23132 include flat body portions (2313a, 2313b) and free
  • the bending unit 23130 that is bent and protrudes toward the diaphragm 21.
  • the auxiliary diaphragm 232 includes an arc-shaped folding ring 2321 protruding away from the diaphragm 21 and a first connecting portion 2322 and a second connecting portion 2323 respectively extending from opposite sides of the folding ring 2321 ,
  • the first connecting portion 2322 is fixed to the side of the first fixing arm 2311 away from the diaphragm 21, and the second connecting portion 2323 and the side of the second fixing arm 2312 away from the diaphragm 21
  • One side is fixed, and the folding ring 2321 is opposite to the elastic arm 2313, that is, the bending direction of the bending unit 23130 is opposite to that of the folding ring 2321, thereby better avoiding the The interference between the bending unit 23130 and the folding ring 2321 occurs.
  • the length of the elastic arm 2313 is increased by the setting of the bending unit 23130, and the fatigue resistance of the elastic member 231 is improved, so that the service life of the elastic support assembly 23 is high , which in turn makes the sound-emitting device 100 highly reliable; further, the bending unit 23130 protrudes and bends in a direction close to the diaphragm 21, which prevents the bending unit 23130 from contacting The auxiliary diaphragm 232 interferes and emits undesirable noise, which ensures that the acoustic performance of the sound emitting device 100 is excellent.
  • the elastic support assembly 23 includes two and are located on opposite sides of the voice coil 22; specifically, the voice coil 22 is taken as an example to expand the description
  • Two elastic support assemblies 23 are located on both sides of the short axis of the voice coil 22 respectively.
  • the arrangement of the double elastic support assembly 23 forms a symmetrical structure, the support effect on the voice coil 22 is more stable, and the lateral swing of the voice coil 22 is better prevented, so that the vibration performance of the vibration system 2 is excellent, thereby improving the The acoustic performance of the sound emitting device 100.
  • the number and position of the elastic support components 23 are not limited to this; for example, the elastic support components 23 may be provided at two sides of the long axis of the voice coil 22; for another example, the elastic support components Four 23 can be provided and surround the voice coil 22.
  • the elastic member 231 is a flexible circuit board, and the voice coil 22 is electrically connected to the elastic member 231. On the one hand, it is used to provide support for the voice coil 22, and on the other The introduction of an external electrical signal to the voice coil 22 avoids the problem of easy disconnection when introducing an external electrical signal to the voice coil 22 through a lead wire, and improves its reliability.
  • the magnetic circuit system 3 includes a yoke 31, a main magnetic steel 32 fixed to the yoke 31, and spaced apart on opposite sides of the main magnetic steel 32 and separated from each other
  • the main magnetic steel 32 forms two auxiliary magnetic steels 33 of the magnetic gap 30.
  • the magnetic circuit system 3 is a three-magnetic steel magnetic circuit.
  • the rectangular structure of the voice coil 22 is taken as an example for illustration.
  • the two secondary magnetic steels 33 are located on the two sides of the long axis of the voice coil 22.
  • the two elastic support assemblies 23 are located on both sides of the short axis of the voice coil 22.
  • the three-magnetic steel magnetic circuit structure makes the driving performance of the magnetic circuit system 3 excellent, so that the acoustic performance of the sound emitting device 100 is good.
  • the magnetic circuit structure of the magnetic circuit system 3 is not limited to the three-magnetic steel magnetic circuit.
  • the magnetic circuit system 3 can be further optimized as a five-magnetic steel magnetic circuit according to the requirements of optimized design.
  • the magnetic force lines of the magnetic circuit system 3 are cut by the voice coil 22 as much as possible to form a greater driving force
  • the magnetic circuit system 3 further includes a cover
  • the main pole core 34 and the clamping plate 35 of the main magnetic steel, the clamping plate 35 includes a ring-shaped fixing ring 351 fixed to the basin frame 1 and two extending from the fixing ring 351 to the auxiliary magnetic steel 33 respectively
  • Two secondary pole cores 352, and the two secondary pole cores 352 are stacked on the two secondary magnetic steels 33, respectively.
  • the arrangement of the main pole core 34 and the sub-pole core 352 makes the magnetic force lines of the circuit system 3 more concentrated, so that the magnetic performance of the magnetic circuit system 3 is better, and the sound generation is further improved The acoustic performance of the device 100.
  • the elastic member includes a first fixing arm fixed to the basin frame, and a second fixing fixed to an end of the voice coil away from the diaphragm
  • the arm and the elastic arm connecting the first fixed arm and the second fixed arm are bent to form a bending unit protruding toward the diaphragm.
  • the length of the elastic arm is increased by the arrangement of the bending unit, and the fatigue resistance of the elastic member is improved, so that the service life of the elastic support component is high, which in turn makes
  • the sound-emitting device has high reliability; further, the bending unit is bent in a direction close to the diaphragm to avoid interference of the bending unit with the auxiliary diaphragm during vibration, and to ensure The acoustic performance of the sound-generating device is excellent.

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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)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本实用新型提供了一种发声器件，其包括盆架以及分别固定于盆架的振动系统及具有磁间隙的磁路系统；振动系统包括固定于盆架的振膜、插设于磁间隙以驱动振膜振动发声的音圈以及固定于盆架并与振膜相对且间隔设置的弹性支撑组件，弹性支撑组件固定于音圈的远离振膜的一端；弹性支撑组件包括弹性件，弹性件包括固定于盆架的第一固定臂、固定于音圈远离振膜的一端的第二固定臂以及连接第一固定臂和第二固定臂的弹臂，弹臂折弯形成向靠近振膜方向凸出的单元。与相关技术相比，本实用新型的发声器件声学性能好且可靠性高。

Description

发声器件 技术领域
本实用新型涉及声电领域，尤其涉及一种运用于便携式电子产品的发声器件。
 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。用于播放声音的发声器件被大量应用到现在的手机等智能移动设备之中。
相关技术的所述发声器件包括盆架以及分别固定于所述盆架的振动系统及具有磁间隙的磁路系统；所述振动系统包括固定于所述盆架的振膜、连接于所述盆架并与所述振膜相对且间隔设置的弹性支撑组件以及分别连接所述振膜和所述弹性支撑组件的音圈，所述音圈插设于所述磁间隙以驱动所述振膜振动发声；所述弹性支撑组件包括弹性件以及连接于所述弹性件的辅助振膜，所述弹性件包括固定于所述盆架的第一固定臂、连接于所述音圈的第二固定臂以及由所述第一固定臂向所述第二固定臂延伸的弹臂。
 技术问题
然而，相关技术中的，所述弹性件呈平面结构，即所述第一固定臂、所述第二固定臂以及所述弹臂设置在同一平面，而所述弹臂的延伸长度因此受限，使得所述弹性件的抗疲劳断裂能力弱，从而使得所述发声器件的可靠性低；同时在所述振动系统在振动过程中，所述弹臂与所述辅助振膜容易发生干涉现象，对所述发声器件的声学性能造成不良影响。
因此，实有必要提供一种新的发声器件解决上述技术问题。
 技术解决方案
本实用新型的目的在于提供一种声学性能好且可靠性高的发声器件。
为达到上述目的，本实用新型提供一种发声器件，其包括盆架以及分别固定于所述盆架的振动系统及具有磁间隙的磁路系统；所述振动系统包括固定于所述盆架的振膜、插设于所述磁间隙以驱动所述振膜振动发声的音圈以及固定于所述盆架并与所述振膜相对且间隔设置的弹性支撑组件，所述弹性支撑组件固定于所述音圈的远离所述振膜的一端；所述弹性支撑组件包括弹性件，所述弹性件包括固定于所述盆架的第一固定臂、固定于所述音圈远离所述振膜的一端的第二固定臂以及连接所述第一固定臂和所述第二固定臂的弹臂，所述弹臂折弯形成向靠近所述振膜方向凸出的折弯单元。
优选的，所述折弯单元包括多个且间隔设置，所述折弯单元呈弧形片状。
优选的，所述弹性支撑组件还包括固定于所述弹性件远离所述振膜一侧的辅助振膜；所述辅助振膜包括朝远离所述振膜方向凸出的呈弧形的折环以及由所述折环的相对两侧分别延伸的第一连接部和第二连接部，所述第一连接部与所述第一固定臂远离所述振膜的一侧固定，所述第二连接部与所述第二固定臂的远离所述振膜的一侧固定，所述折环与所述弹臂相对设置。
优选的，所述弹性支撑组件包括两个且分别位于所述音圈的相对两侧。
优选的，所述音圈呈矩形，两个所述弹性支撑组件分别位于所述音圈的短轴两侧。
优选的，所述磁路系统包括磁轭、固定于所述磁轭的主磁钢以及分别间隔设置于所述主磁钢相对两侧并与所述主磁钢形成所述磁间隙的两个副磁钢，两个所述副磁钢分别位于所述音圈的长轴两侧。
优选的，所述磁路系统还包括盖设于所述主磁钢的主极芯以及固定于所述盆架的夹板，所述夹板包括固定于盆架的呈环状的固定环和由所述固定环分别向所述副磁钢延伸的两个副极芯，两个所述副极芯分别叠设于所述副磁钢。
优选的，所述弹性件为与所述音圈电连接的柔性线路板。
优选的，所述磁轭靠近所述辅助振膜的一侧朝远离所述辅助振膜的方向凹陷形成有避让槽，所述避让槽与所述辅助振膜相对应。
优选的，所述避让槽进一步朝远离所述辅助振膜的方向部分凹陷形成有凹陷部，所述凹陷部对应所述辅助振膜的振幅最大位置处。
优选的，所述弹臂包括自所述第一固定臂的一端朝所述第二固定臂的中部延伸的第一力臂、以及自所述第一固定臂朝所述第二固定臂的中部延伸的第二力臂；所述第一力臂及所述第二力臂包括平板状的本体部及自所述本体部折弯并朝所述振膜方向突出的所述折弯单元。
 有益效果
与相关技术相比，本实用新型的所述发声器件中，所述弹性件包括固定于所述盆架的第一固定臂、固定于所述音圈远离所述振膜的一端的第二固定臂以及连接所述第一固定臂和所述第二固定臂的弹臂，所述弹臂折弯形成向靠近所述振膜方向凸出的折弯单元。上述结构中，通过所述折弯单元的设置，增加了所述弹臂的长度，实现所述弹性件的抗疲劳断裂能力的提升，从而使得所述弹性支撑组件的使用寿命高，进而使得所述发声器件的可靠性高；进一步的，所述折弯单元向靠近所述振膜的方向折弯，避免了所述折弯单元在振动过程中与所述辅助振膜的干涉，保证了所述发声器件的声学性能优。
 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为本实用新型发声器件的立体结构示意图；
图2为本实用新型发声器件的部分立体结构分解图；
图3为沿图1中A-A线的剖示图；
图4为本实用新型的弹性支撑组件的立体结构分解图。
 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所示，本实用新型提供一种发声器件100，其包括盆架1、振动系统2以及磁路系统3。
所述盆架1用于支撑所述振动系统2和所述磁路系统3。
请参阅图2所示，所述振动系统2包括固定于所述盆架1的振膜21、音圈22以及固定于所述盆架1并与所述振膜21相对且间隔设置的弹性支撑组件23，所述弹性支撑组件23固定于所述音圈22的远离所述振膜21的一端。如图所示，振膜21包括中间球顶以及自球顶边缘延伸的折环，在本实施例中折环为朝磁路系统方向凸出的弧形结构，在本实用新型的其他优选实施例中折环也可以是朝远离磁路系统方向凸出的弧形结构。
所述磁路系统3具有磁间隙30，所述音圈22插设于所述磁间隙30内以驱动所述振膜21振动发声。
请同时结合图3-4所示，本实施方式中，所述弹性支撑组件23包括弹性件231以及固定于所述弹性件231远离所述盆架1的一侧的辅助振膜232。
具体的，所述弹性件231包括固定于所述盆架的第一固定臂2311、固定于所述音圈22远离所述振膜21的一端的第二固定臂2312以及连接所述第一固定臂2311和所述第二臂2312的弹臂2313，所述弹臂2313折弯形成向靠近所述振膜21方向凸出的折弯单元23130。
进一步的，所述折弯单元23130包括多个且间隔设置，所述折弯单元23130呈弧形片状。当然，所述折弯单元23130的折弯形状不限于此。
更进一步的，所述弹臂2313包括自所述第一固定臂2311的一端朝所述第二固定臂2312的中部延伸的第一力臂23131、以及自所述第一固定臂2311的相对的另一端朝所述第二固定臂2312的中部延伸的第二力臂23132；所述第一力臂23131及所述第二力臂23132分别包括平板状的本体部（2313a、2313b）及自所述本体部折弯并朝所述振膜21方向突出的所述折弯单元23130。
所述辅助振膜232包括朝远离所述振膜21方向凸出的呈弧形的折环2321以及由所述折环2321的相对两侧分别延伸的第一连接部2322和第二连接部2323，所述第一连接部2322与所述第一固定臂2311远离所述振膜21的一侧固定，所述第二连接部2323与所述第二固定臂2312的远离所述振膜21的一侧固定，所述折环2321与所述弹臂2313相对设置，即使得所述折弯单元23130的折弯方向与所述折环2321的折弯方向相反，从而更好地避免了所述折弯单元23130与所述折环2321之间发生干涉。
上述结构中，通过所述折弯单元23130的设置，增加了所述弹臂2313的长度，实现所述弹性件231的抗疲劳断裂能力的提升，从而使得所述弹性支撑组件23的使用寿命高，进而使得所述发声器件100的可靠性高；进一步的，所述折弯单元23130向靠近所述振膜21的方向凸出折弯，避免了所述折弯单元23130在振动过程中与所述辅助振膜232干涉而发出不良的杂音，保证了所述发声器件100的声学性能优。
请同时结合图2-3所示，本实施方式中，所述弹性支撑组件23包括两个且分别位于所述音圈22的相对两侧；具体的，以所述音圈22为例展开说明，两个所述弹性支撑组件23分别位于所述音圈22的短轴两侧。双弹性支撑组件23的设置形成对称结构，对所述音圈22的支撑效果更稳定，更好地防止所述音圈22的横向摆动，使得所述振动系统2振动性能优，从而改善所述发声器件100的声学性能。
当然，所述弹性支撑组件23的数量和位置不限于此；比如，所述弹性支撑组件23可以设置两个且分别位于所述音圈22的长轴两侧；再比如，所述弹性支撑组件23可以设置四个且环绕所述音圈22设置。
值得一提的是，所述弹性件231为柔性线路板，所述音圈22与所述弹性件231电连接，一方面用于提供对所述音圈22的支撑，另一方面为所述音圈22引入外部电信号，避免了通过引线为所述音圈22引入外部电信号时容易断线的问题，提高其可靠性。
请参阅图2及图3所示，所述磁路系统3包括磁轭31、固定于所述磁轭31的主磁钢32以及分别间隔设置于所述主磁钢32相对两侧并与所述主磁钢32形成所述磁间隙30的两个副磁钢33。
本实施方式中，所述磁路系统3为三磁钢磁路，以所述音圈22呈矩形结构为例说明，两个所述副磁钢33位于所述音圈22的长轴的两侧，两个所述弹性支撑组件23位于所述音圈22的短轴的两侧。此时，该三磁钢磁路结构使得所述磁路系统3的驱动性能优，从而使得所述发声器件100的声学性能好。
当然，所述磁路系统3的磁路结构不限于三磁钢磁路，在实际应用中可以根据优化设计的需求，亦可以进一步将所述磁路系统3优化为五磁钢磁路。
为了进一步提高磁路系统3的性能，使所述磁路系统3的磁力线尽可能多的被所述音圈22切割，以形成更大的驱动力，所述磁路系统3还包括盖设于所述主磁钢的主极芯34以及夹板35，所述夹板35包括固定于盆架1的呈环状的固定环351和由所述固定环351分别向所述副磁钢33延伸的两个副极芯352，两个所述副极芯352分别叠设于两个所述副磁钢33。通过所述主极芯34与所述副极芯352的设置，使得所述此路系统3的磁力线更为集中，从而使得所述磁路系统3的磁性能更优，进而进一步改善所述发声器件100的声学性能。
与相关技术相比，本实用新型的所述发声器件中，所述弹性件包括固定于所述盆架的第一固定臂、固定于所述音圈远离所述振膜的一端的第二固定臂以及连接所述第一固定臂和所述第二固定臂的弹臂，所述弹臂折弯形成向靠近所述振膜方向凸出的折弯单元。上述结构中，通过所述折弯单元的设置，增加了所述弹臂的长度，实现所述弹性件的抗疲劳断裂能力的提升，从而使得所述弹性支撑组件的使用寿命高，进而使得所述发声器件的可靠性高；进一步的，所述折弯单元向靠近所述振膜的方向弯折，避免了所述折弯单元在振动过程中与所述辅助振膜的干涉，保证了所述发声器件的声学性能优。
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. 一种发声器件，其包括盆架以及分别固定于所述盆架的振动系统及具有磁间隙的磁路系统；所述振动系统包括固定于所述盆架的振膜、插设于所述磁间隙以驱动所述振膜振动发声的音圈以及固定于所述盆架并与所述振膜相对且间隔设置的弹性支撑组件，所述弹性支撑组件固定于所述音圈的远离所述振膜的一端，其特征在于，所述弹性支撑组件包括弹性件，所述弹性件包括固定于所述盆架的第一固定臂、固定于所述音圈远离所述振膜的一端的第二固定臂以及连接所述第一固定臂和所述第二固定臂的弹臂，所述弹臂折弯形成向靠近所述振膜方向凸出的折弯单元。
  2. 根据权利要求1所述的发声器件，其特征在于，所述折弯单元包括多个且间隔设置，所述折弯单元呈弧形片状。
  3. 根据权利要求2所述的发声器件，其特征在于，所述弹性支撑组件还包括固定于所述弹性件远离所述振膜一侧的辅助振膜；所述辅助振膜包括朝远离所述振膜方向凸出的呈弧形的折环以及由所述折环的相对两侧分别延伸的第一连接部和第二连接部，所述第一连接部与所述第一固定臂远离所述振膜的一侧固定，所述第二连接部与所述第二固定臂的远离所述振膜的一侧固定，所述折环与所述弹臂相对设置。
  4. 根据权利要求1所述的发声器件，其特征在于，所述弹性支撑组件包括两个且分别位于所述音圈的相对两侧。
  5. 根据权利要求4所述的发声器件，其特征在于，所述音圈呈矩形，两个所述弹性支撑组件分别位于所述音圈的短轴两侧。
  6. 根据权利要求3所述的发声器件，其特征在于，所述磁路系统包括磁轭、固定于所述磁轭的主磁钢以及分别间隔设置于所述主磁钢相对两侧并与所述主磁钢形成所述磁间隙的两个副磁钢，两个所述副磁钢分别位于所述音圈的长轴两侧。
  7. 根据权利要求6所述的发声器件，其特征在于，所述磁路系统还包括盖设于所述主磁钢的主极芯以及固定于所述盆架的夹板，所述夹板包括固定于盆架的呈环状的固定环和由所述固定环分别向所述副磁钢延伸的两个副极芯，两个所述副极芯分别叠设于所述副磁钢。
  8. 根据权利要求1所述的发声器件，其特征在于，所述弹性件为与所述音圈电连接的柔性线路板。
  9. 根据权利要求6所述的发声器件，其特征在于，所述磁轭靠近所述辅助振膜的一侧朝远离所述辅助振膜的方向凹陷形成有避让槽，所述避让槽与所述辅助振膜相对应。
  10. 根据权利要求9所述的发声器件，其特征在于，所述避让槽进一步朝远离所述辅助振膜的方向部分凹陷形成有凹陷部，所述凹陷部对应所述辅助振膜的振幅最大位置处。
  11. 根据权利要求1所述的发声器件，其特征在于，所述弹臂包括自所述第一固定臂的一端朝所述第二固定臂的中部延伸的第一力臂、以及自所述第一固定臂的另一端朝所述第二固定臂的中部延伸的第二力臂；所述第一力臂及所述第二力臂包括平板状的本体部及自所述本体部折弯并朝所述振膜方向突出的所述折弯单元。
     
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