WO2022099805A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2022099805A1
WO2022099805A1 PCT/CN2020/132243 CN2020132243W WO2022099805A1 WO 2022099805 A1 WO2022099805 A1 WO 2022099805A1 CN 2020132243 W CN2020132243 W CN 2020132243W WO 2022099805 A1 WO2022099805 A1 WO 2022099805A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
fixed
sound
magnet
auxiliary
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PCT/CN2020/132243
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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
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Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022099805A1 publication Critical patent/WO2022099805A1/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
    • H04R9/02—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
    • 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads

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 and a vibration system and a magnetic circuit system respectively fixed on the basin frame.
  • the main part of the membrane and the first connecting part extending from the main part to the direction away from the diaphragm, the voice coil includes a pair of first sides and a pair of second sides connected between the first sides, the first side
  • the side is provided with an elastic support.
  • One end of the elastic support is fixed to the basin frame, and the other end of the elastic support is fixed to the first connecting portion.
  • the elastic support and the first side are enclosed to form a receiving space.
  • the magnetic circuit system includes a main magnet and a surrounding main body. There are four auxiliary magnets which are arranged with the magnet and form a magnetic gap with the main magnet. There are four auxiliary magnets. second secondary magnet.
  • such a magnetic circuit system cannot fully utilize the internal space of the sound-emitting device.
  • the purpose of the present invention is to provide a sounding device, which can not only increase the volume of the magnetic circuit system to increase the BL value, but also can effectively reduce the weight of the vibration system to improve the sensitivity.
  • the sound-generating device includes a basin frame, a vibration system and a magnetic circuit system respectively fixed on the basin frame, and the vibration system includes a vibrating membrane fixed on the basin frame and a sound that drives the vibrating membrane to vibrate and emit sound.
  • the frame includes a frame body fixed on the vibrating membrane and a first connecting portion extending from the frame body to a direction away from the vibrating membrane
  • the voice coil includes a pair of first sides and Connected to a pair of second sides between the first sides
  • the first side is provided with an elastic support
  • one end of the elastic support is fixed to the basin frame
  • the other end of the elastic support is fixed to the the first connecting part
  • the elastic support member and the first side are enclosed to form a receiving space
  • the magnetic circuit system includes a main magnet and a magnetic gap arranged around the main magnet and forming a magnetic gap with the main magnet
  • the auxiliary magnet includes a first magnetic part spaced from the first side and located in the receiving space and a second magnetic part spaced from the second side.
  • the elastic support includes an auxiliary diaphragm, an escape groove is formed on the auxiliary diaphragm, and the first magnetic part includes a main body part and a side extending from the main body part away from the first side to the escape groove. an extension part, the first connecting part is provided with a notch for avoiding the extension part.
  • the first magnetic part and the second magnetic part are integrally formed.
  • the first magnetic portion and the second magnetic portion are respectively two permanent magnets arranged at intervals.
  • the auxiliary diaphragm includes a first fixing part fixed on the basin frame, a second fixing part connected with the first connecting part, and a second fixing part connected with the first fixing part and the second fixing part
  • the folded ring portion extends from the side of the second fixing portion away from the first fixing portion to the folded ring portion.
  • the elastic support further includes a flexible circuit board
  • the flexible circuit board includes a holding part connected with the first fixing part, a joint part connected with the second fixing part, and a connecting part connecting the holding part and the second fixing part.
  • the opening of the folded ring portion faces the flexible circuit board, and the orthographic projection of the elastic arm on the auxiliary diaphragm is located within the range of the folded ring portion.
  • the flexible circuit board is located between the auxiliary diaphragm and the diaphragm.
  • 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 magnetic circuit system further comprises an upper clamping plate covered on the auxiliary magnet and fixed on the basin frame, and a pole core covered on the main magnet, wherein the upper clamping plate has a through hole , the pole core is located in the through hole.
  • an escape groove is provided on the auxiliary diaphragm and a notch is provided on the first connection part, so that the first magnetic part extends to the escape groove.
  • the volume of the magnetic circuit system can be increased to increase the BL value, but also the supporting effect of the elastic support can also reduce the degree of swaying of the vibration system.
  • removing the material in the notch area on the skeleton can also effectively reduce the weight of the vibration system to improve the sensitivity of the sound-emitting device.
  • FIG. 1 is a schematic exploded perspective view of a preferred embodiment of a sound-emitting device provided by the present invention.
  • FIG. 2 is a schematic structural diagram of a flexible circuit board in the sound-emitting device shown in FIG. 1 .
  • FIG. 3 is a schematic structural diagram of the skeleton in the sound-emitting device shown in FIG. 1 .
  • FIG. 4 is a perspective view of the sounding device shown in FIG. 1 after being assembled.
  • FIG. 5 is a cross-sectional view of the sound-emitting device shown in FIG. 4 along the line A-A.
  • FIG. 6 is a cross-sectional view of the sound-emitting device shown in FIG. 4 taken along line B-B.
  • FIG. 7 is a schematic structural diagram of another angle of the sound-emitting device shown in FIG. 4 after the yoke is removed.
  • FIG. 8 is a schematic structural diagram of the elastic support member and the voice coil in the sound generating device shown in FIG. 1 after being assembled.
  • FIG. 9 is a schematic structural diagram of the assembled upper splint, the auxiliary magnet and the skeleton in the sounding device shown in FIG. 1 .
  • the sound-generating device includes a basin frame 1 , a vibration system 3 and a magnetic circuit system 5 respectively fixed on the basin frame 1 , and the magnetic circuit system 5 drives the vibration system 3 to vibrate and produce sound. .
  • the vibration system 3 includes a diaphragm 31 fixed on the basin frame 1 , a voice coil 33 that drives the diaphragm 31 to vibrate and sound, and a frame 35 , and the frame 35 includes a frame body 351 fixed to the diaphragm 31 . and a first connecting portion 353 extending from the frame body 351 in a direction away from 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 drives the The diaphragm 31 vibrates to produce sound, and the diaphragm 31 drives the frame 35 to vibrate together.
  • 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. 7 , 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 an elastic support member 7 , one end of the elastic support member 7 is fixed to the basin frame 1 , the other end of the elastic support member 7 is fixed to the first connecting portion 353 , and the elastic support member 7 It is enclosed with the first side edge 331 to form a receiving space 8 .
  • the voice coil 33 vibrates, it also drives the elastic support 7 to vibrate together.
  • the frame 35 further includes a second connecting portion 355 extending from the frame body 351 in a direction away from the diaphragm 31 , and the voice coil 33 is connected to the second connecting portion 355 .
  • 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 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.
  • the elastic support 7 includes a flexible circuit board 71 and an auxiliary diaphragm 73 stacked along the vibration direction of the diaphragm 31 .
  • the flexible circuit board 71 is located between the auxiliary diaphragm 73 and the diaphragm 31 .
  • the flexible circuit board 71 includes a holding portion 711 fixed to the basin frame 1 , a joint portion 713 fixed to the first connecting portion 353 , and an elastic arm 715 connecting the holding portion 711 and the joint portion 713 .
  • one of the flexible circuit boards 71 further includes a pad portion 717 bent and extended from the joint portion 713 toward the vibrating membrane 31 , and the pad portion 717 is provided with the The leads of the voice coil 33 are electrically connected.
  • the flexible circuit board 71 plays the role of supporting and fixing the vibration system 3; Not shown), the elastic arm 715 and the bonding portion 713 are provided with conductive paths to electrically connect the holding portion 711 and the pads on the pad portion 717 , wherein the pad portion 717 is on the The connection between the pad of the voice coil 33 and the lead wire of the voice coil 33 serves to electrically connect the voice coil 33, and the pad on the holding portion 711 is connected to an external circuit, so that the voice coil 33 passes through the flexible circuit
  • the board 71 is electrically connected to an external circuit, and when the sound-emitting device works, the electrical signal of the external circuit is transmitted to the voice coil 33 through the flexible circuit board 71 .
  • the flexible circuit board 71 may also not include a pad portion, and correspondingly, pads electrically connected to the leads of the voice coil 33 are provided on the bonding portion.
  • the auxiliary diaphragm 73 includes a first fixing portion 731 fixed on the side of the holding portion 711 away from the basin frame 1 , and a second fixing portion 731 fixed on the side of the joint portion 713 away from the first connecting portion 353 .
  • the orthographic projection on the auxiliary diaphragm 73 is located within the range of the ring portion 735 .
  • the first fixing part 731 of the auxiliary diaphragm 73 is fixed to the basin frame 1 by the holding part 711 , and the second fixing part 733 of the auxiliary diaphragm 73 is fixed by the connecting part 713 fixed to the first connecting portion 353 .
  • the elastic support member may also be arranged such that the auxiliary diaphragm is located between the flexible circuit board and the diaphragm, and correspondingly, the opening of the ring portion Should face away from the diaphragm; alternatively, the elastic support only includes an auxiliary diaphragm.
  • the magnetic circuit system 5 includes a yoke 51 , a main magnet 53 and a secondary magnet 55 fixed on the yoke 51 , an upper clamp plate 57 covered on the secondary magnet 55 , and a main magnet 53 covered on the main magnet 53 .
  • the upper pole core 59, the auxiliary magnet 55 is arranged around the main magnet 53 and forms a magnetic gap 5A with the main magnet 53, and the upper clamping plate 57 is fixed on the basin frame 1 to realize the magnetic
  • the circuit system 5 is fixed on the basin frame 1, and the voice coil 33 is inserted into the magnetic gap 5A, so that after the voice coil 33 is energized, the voice coil 33 will be in the magnetic field of the magnetic circuit system 5. Vibrate under the action.
  • the upper clamping plate 57 has a through hole 571 , and the pole core 59 is located in the through hole 571 .
  • the upper clamping plate 57 and the pole core 59 are both made of magnetically conductive material, so that the magnetic flux in the magnetic gap 5A can be enhanced.
  • the secondary magnet 55 includes a first magnetic portion 551 spaced from the first side 331 and located in the receiving space 8 , and a second magnetic portion 553 spaced from the second side 333 .
  • An escape groove 73A is formed on the auxiliary diaphragm 73 , and the first magnetic portion 551 includes a main body portion 555 and extends from a side of the main body portion 555 away from the first side 331 into the escape groove 73A
  • the extension portion 557 of the first connecting portion 353 is provided with a notch 35A for avoiding the extension portion 557 .
  • the first magnetic part 551 and the second magnetic part 553 are two permanent magnets arranged at intervals. It can be understood that, in other embodiments, the first magnetic portion 551 and the second magnetic portion 553 may also be integrally formed, that is, the secondary magnet 55 is configured as a continuous annular structure.
  • the main magnet 53 , the first magnetic part 551 and the second magnetic part 553 are all magnetic steel.
  • the main magnet 53 may also include two main magnetic steels, two of the main magnetic steels The two main magnets are stacked along the vibration direction of the diaphragm 31, and the polarities of the two main magnets are opposite.
  • the first magnetic part 551 and the second magnetic part 553 can also include two auxiliary magnets. Magnetic steel, the two auxiliary magnetic steels are stacked along the vibration direction of the diaphragm 31, and the polarities of the two auxiliary magnetic steels are opposite; A magnetic conductive plate made of magnetic conductive material is sandwiched between the secondary magnetic steels.
  • the magnetic circuit system 5 may not include a pole core and an upper clamping plate.
  • the second magnetic part is fixed to the basin frame to realize that the magnetic circuit system is fixed to the pot rack.

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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、音圈以及骨架，骨架包括骨架主体以及第一连接部，音圈包括一对第一侧边及一对第二侧边，第一侧边设有固定于所述盆架并固定于第一连接部的弹性支撑件，弹性支撑件与第一侧边围合形成收容空间，磁路系统包括主磁体和副磁体，副磁体包括与第一侧边间隔设置并位于收容空间内的第一磁部，弹性支撑件包括辅助振膜，辅助振膜上开设有避让槽，第一磁部包括主体部及自主体部远离第一侧边的一侧延伸至避让槽内的延伸部，第一连接部上设有避让延伸部的槽口。本发明提供的发声器件不仅可以增加磁路系统体积以增大BL值，而且能有效降低振动系统重量以有利于提高灵敏度。

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，发声器件包括盆架以及分别固持于盆架的振动系统和磁路系统，振动系统包括固持于盆架的振膜、驱动振膜振动发声的音圈以及骨架，骨架包括固定于振膜的主体部以及自主体部向远离振膜方向延伸形成的第一连接部，音圈包括一对第一侧边及连接于第一侧边之间的一对第二侧边，第一侧边设有弹性支撑件，弹性支撑件的一端固定于盆架，其另一端固定于第一连接部，弹性支撑件与第一侧边围合形成收容空间，磁路系统包括主磁体和环绕主磁体设置并与主磁体之间形成磁间隙的副磁体，副磁体设有四个，分别为与第一侧边间隔设置并位于收容空间内的第一副磁体以及与第二侧边间隔设置的第二副磁体。然而，这种磁路系统无法充分利用发声器件的内部空间。
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，该发声器件不仅可以增加磁路系统体积以增大BL值，而且能有效降低振动系统重量以有利于提高灵敏度。
 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磁路系统，所述振动系统包括固持于所述盆架的振膜、驱动所述振膜振动发声的音圈以及骨架，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于所述第一侧边之间的一对第二侧边，所述第一侧边设有弹性支撑件，所述弹性支撑件的一端固定于所述盆架，其另一端固定于所述第一连接部，所述弹性支撑件与所述第一侧边围合形成收容空间，所述磁路系统包括主磁体和环绕所述主磁体设置并与所述主磁体之间形成磁间隙的副磁体，所述副磁体包括与所述第一侧边间隔设置并位于所述收容空间内的第一磁部以及与所述第二侧边间隔设置的第二磁部，所述弹性支撑件包括辅助振膜，所述辅助振膜上开设有避让槽，所述第一磁部包括主体部及自所述主体部远离所述第一侧边的一侧延伸至所述避让槽内的延伸部，所述第一连接部上设有避让所述延伸部的槽口。
优选地，所述第一磁部和所述第二磁部一体成型。
优选地，所述第一磁部和所述第二磁部分别为两个间隔设置的永磁体。
优选地，所述辅助振膜包括固定于所述盆架的第一固定部、与所述第一连接部连接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部，所述避让槽自所述第二固定部远离所述第一固定部一侧延伸至所述折环部上。
优选地，所述弹性支撑件还包括柔性电路板，所述柔性电路板包括与所述第一固定部连接的固持部、与所述第二固定部连接的结合部以及连接所述固持部和所述结合部的弹性臂，所述折环部的开口朝向所述柔性电路板，且所述弹性臂在所述辅助振膜上的正投影位于所述折环部的范围内。
优选地，所述柔性电路板位于所述辅助振膜和所述振膜之间。
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。
优选地，所述磁路系统还包括盖设于所述副磁体上并固定于所述盆架的上夹板以及盖设于所述主磁体上的极芯，其中，所述上夹板具有通孔，所述极芯位于所述通孔内。
 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辅助振膜上开设避让槽以及在所述第一连接部上设置槽口，以使得所述第一磁部延伸至所述避让槽内；这样，不仅可以增加磁路系统体积以增大BL值，而且弹性支撑件的支撑作用还可以减轻振动系统摇摆程度。同时，去掉骨架上槽口区域的材料还能有效降低振动系统重量以有利于提高发声器件的灵敏度。
 附图说明
图1为本发明提供的发声器件一较佳实施例的立体分解示意图。
图2为图1所示发声器件中柔性电路板的结构示意图。
图3为图1所示发声器件中骨架的结构示意图。
图4为图1所示发声器件组装后的立体图。
图5为图4所示发声器件沿A-A线的剖视图。
图6为图4所示发声器件沿B-B线的剖视图。
图7为图4所示发声器件去磁轭后的另一角度的结构示意图。
图8为图1所示发声器件中弹性支撑件与音圈组装后的结构示意图。
图9为图1所示发声器件中上夹板、副磁体及骨架组装后的结构示意图。
 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以及分别固定在所述盆架1的振动系统3及磁路系统5，所述磁路系统5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以及驱动所述振膜31振动发声的音圈33以及骨架35，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。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驱动所述振膜31振动发声，而所述振膜31带动所述骨架35一同振动。
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7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设有弹性支撑件7，所述弹性支撑件7的一端固定于所述盆架1，其另一端固定于所述第一连接部353，且所述弹性支撑件7与所述第一侧边331围合形成收容空间8。其中，所述音圈33振动时还带动所述弹性支撑件7一同振动。
在本实施例中，所述骨架35还包括自所述骨架主体351向远离所述振膜31方向延伸形成的第二连接部355，所述音圈33连接于所述第二连接部355。
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。
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。
所述弹性支撑件7包括沿所述振膜31的振动方向叠设的柔性电路板71和辅助振膜73。
如图5所示，所述柔性电路板71位于所述辅助振膜73和所述振膜31之间。
所述柔性电路板71包括固定于所述盆架1的固持部711、固定于所述第一连接部353的结合部713及连接所述固持部711和所述结合部713的弹性臂715。
在本实施例中，其中一所述柔性电路板71还包括自所述结合部713向所述振膜31方向弯折延伸的焊盘部717，所述焊盘部717上设有与所述音圈33的引线电连接。一方面，所述柔性电路板71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71的所述固持部711和所述焊盘部717上均设有焊盘（图未示），所述弹性臂715和所述结合部713内设有导电路径以电性连接所述固持部711和所述焊盘部717上的焊盘，其中，所述焊盘部717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711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71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71传输至所述音圈33。
可以理解的是，在其他实施方式中，所述柔性电路板71还可以不包括焊盘部，相应地，与所述音圈33的引线电连接的焊盘设置在所述结合部上。
所述辅助振膜73包括固设于所述固持部711远离所述盆架1一侧的第一固定部731、固定于所述结合部713远离所述第一连接部353一侧的第二固定部733及连接所述第一固定部731和所述第二固定部733的折环部735，所述折环部735的开口朝向所述柔性电路板，且所述弹性臂715在所述辅助振膜73上的正投影位于所述折环部735的范围内。也就是说，所述辅助振膜73的第一固定部731通过所述固持部711固定于所述盆架1，所述辅助振膜73的所述第二固定部733通过所述结合部713固定于所述第一连接部353。
可以理解的是，在其他实施方式中，所述弹性支撑件还可以设置成，所述辅助振膜位于所述柔性电路板和所述振膜之间，相应地，所述折环部的开口应当背离所述振膜；或者，所述弹性支撑件仅包括辅助振膜。
所述磁路系统5包括磁轭51、固定在所述磁轭51上的主磁体53和副磁体55、盖设于所述副磁体55上的上夹板57以及盖设于所述主磁体53上的极芯59，所述副磁体55环绕所述主磁体53设置并与所述主磁体53之间形成磁间隙5A，所述上夹板57固持在所述盆架1上以实现所述磁路系统5固持在所述盆架1上，所述音圈33插入所述磁间隙5A中，以使得所述音圈33通电后，所述音圈33会在所述磁路系统5磁场的作用下振动。其中，所述上夹板57具有通孔571，所述极芯59位于所述通孔571内。
在本实施例中，所述上夹板57和所述极芯59均由导磁材料制成，从而可以增强所述磁间隙5A内的磁通量。
所述副磁体55包括与所述第一侧边331间隔设置并位于所述收容空间8内的第一磁部551以及与所述第二侧边333间隔设置的第二磁部553。
所述辅助振膜73上开设有避让槽73A，所述第一磁部551包括主体部555及自所述主体部555远离所述第一侧边331的一侧延伸至所述避让槽73A内的延伸部557，所述第一连接部353上设有避让所述延伸部557的槽口35A。
如图1所示，所述第一磁部551和所述第二磁部553分别为两个间隔设置的永磁体。可以理解的是，在其他实施方式中，所述第一磁部551和所述第二磁部553还可以一体成型，即所述副磁体55设置成为连续的环状结构。
在本实施例中，所述主磁体53、所述第一磁部551和所述第二磁部553均为磁钢。当然，作为所述主磁体53、所述第一磁部551和所述第二磁部553的其他实施方式，所述主磁体53也可以包括两个主磁钢，两个所述主磁钢沿所述振膜31的振动方向堆叠设置，且两个所述主磁钢的极性相反，相应的，所述第一磁部551和所述第二磁部553也均可以包括两个副磁钢，两个所述副磁钢沿所述振膜31的振动方向堆叠设置，且两个所述副磁钢的极性相反；或者，也可以在两个所述主磁钢以及两个所述副磁钢之间夹设由导磁材料制成的导磁板。
当然，在其他实施方式中，所述磁路系统5还可以不包括极芯和上夹板，相应的，所述第二磁部固定于所述盆架以实现所述磁路系统固定于所述盆架。
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 (9)

  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磁路系统，所述振动系统包括固持于所述盆架的振膜、驱动所述振膜振动发声的音圈以及骨架，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于所述第一侧边之间的一对第二侧边，所述第一侧边设有弹性支撑件，所述弹性支撑件的一端固定于所述盆架，其另一端固定于所述第一连接部，所述弹性支撑件与所述第一侧边围合形成收容空间，所述磁路系统包括主磁体和环绕所述主磁体设置并与所述主磁体之间形成磁间隙的副磁体，所述副磁体包括与所述第一侧边间隔设置并位于所述收容空间内的第一磁部以及与所述第二侧边间隔设置的第二磁部，其特征在于：所述弹性支撑件包括辅助振膜，所述辅助振膜上开设有避让槽，所述第一磁部包括主体部及自所述主体部远离所述第一侧边的一侧延伸至所述避让槽内的延伸部，所述第一连接部上设有避让所述延伸部的槽口。
  2. 根据权利要求1所述的发声器件，其特征在于：所述第一磁部和所述第二磁部一体成型。
  3. 根据权利要求1所述的发声器件，其特征在于：所述第一磁部和所述第二磁部分别为两个间隔设置的永磁体。
  4. 根据权利要求1所述的发声器件，其特征在于：所述辅助振膜包括固定于所述盆架的第一固定部、与所述第一连接部连接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部，所述避让槽自所述第二固定部远离所述第一固定部一侧延伸至所述折环部上。
  5. 根据权利要求4所述的发声器件，其特征在于：所述弹性支撑件还包括柔性电路板，所述柔性电路板包括与所述第一固定部连接的固持部、与所述第二固定部连接的结合部以及连接所述固持部和所述结合部的弹性臂，所述折环部的开口朝向所述柔性电路板，且所述弹性臂在所述辅助振膜上的正投影位于所述折环部的范围内。
  6. 根据权利要求5所述的发声器件，其特征在于：所述柔性电路板位于所述辅助振膜和所述振膜之间。
  7. 根据权利要求1-6中任一项所述的发声器件，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。
  8. 根据权利要求7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。
  9. 根据权利要求1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副磁体上并固定于所述盆架的上夹板以及盖设于所述主磁体上的极芯，其中，所述上夹板具有通孔，所述极芯位于所述通孔内。
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