WO2022110467A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2022110467A1
WO2022110467A1 PCT/CN2020/140112 CN2020140112W WO2022110467A1 WO 2022110467 A1 WO2022110467 A1 WO 2022110467A1 CN 2020140112 W CN2020140112 W CN 2020140112W WO 2022110467 A1 WO2022110467 A1 WO 2022110467A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
sound
fixed
diaphragm
voice coil
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/140112
Other languages
English (en)
French (fr)
Inventor
宋威
金鑫
钟志威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Technologies Pte Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Technologies Pte Ltd
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
Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Technologies Pte Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2022110467A1 publication Critical patent/WO2022110467A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/026—Supports for loudspeaker casings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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 and a vibration system and a magnetic circuit system respectively fixed on the basin frame.
  • the vibration system includes a diaphragm, a voice coil and a skeleton.
  • An elastic support is provided on the side of the voice coil. Connect with voice coil and elastic support.
  • the weight of the vibrating system of this sound-generating device results in a slightly less sensitive product.
  • the purpose of the present invention is to provide a sound-generating device, which can effectively reduce the weight of the vibration system to improve the sensitivity of the sound-generating device.
  • 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 that is annular and fixed to the vibrating membrane, a first connecting portion extending from the outer peripheral edge of the frame body to a direction away from the vibrating membrane, and a frame body from the frame body
  • the skeleton main body is provided with a hollow area.
  • the magnetic circuit system includes a magnetic yoke, a main magnet fixed on the magnetic yoke, and a secondary magnet arranged around the main magnet and forming a magnetic gap with the main magnet, and a sub-magnet covered on the main magnet.
  • the pole core on the magnet and the upper clamp plate covered on the auxiliary magnet, the auxiliary magnet includes a first magnetic part spaced from the first side and a second magnetic part spaced from the second side Magnetic Department.
  • a boss is formed protruding from the side of the upper splint facing the vibrating membrane, and the projection of the boss along the vibration direction of the vibrating membrane on the frame body is located in the range of the hollow area Inside.
  • the thickness of the frame body along the vibration direction of the diaphragm is equal to the thickness of the boss along the vibration direction of the diaphragm.
  • the boss is formed on the inner edge of the upper clamping plate.
  • the upper clamping plate comprises a first plate part covered on the first magnetic part and a second plate part covered on the second magnetic part, the first plate part and the first plate part At least one of the bosses is provided on both plate parts.
  • 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 elastic support member and the first side are enclosed to form an accommodation space
  • the first magnetic portion is located in the accommodation space
  • the elastic support member includes an auxiliary diaphragm
  • the auxiliary diaphragm is mounted on the auxiliary diaphragm.
  • An escape groove is opened
  • the first magnetic part includes a main body part and an extension part extending from the side of the main body part away from the first side edge into the escape groove, and the first connection part is provided with Avoid the notch of the extension.
  • 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 sound-emitting device provided by the present invention can effectively reduce the weight of the vibration system and improve the sensitivity of the sound-emitting device by setting a hollow area on the skeleton body of the skeleton, so that the skeleton body retains part of the material to meet the supporting strength.
  • 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 schematic structural diagram of an upper splint 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 another angle of the sound-emitting device shown in FIG. 5 after the yoke is removed.
  • FIG. 9 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. 10 is a perspective view of the upper splint, the auxiliary magnet and the skeleton in the sounding device shown in FIG. 1 after assembly.
  • FIG. 11 is a top view of the sound-emitting device shown in FIG. 1 after the upper splint, the auxiliary magnet and the skeleton are assembled.
  • 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 for driving the diaphragm 31 to vibrate and produce sound, and a frame 35 .
  • 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 .
  • the frame 35 includes a frame body 351 that is annular and fixed to the vibrating film 31 , a first connecting portion 353 extending from the outer periphery of the frame body 351 to a direction away from the vibrating film 31 , and a first connecting portion 353 from the
  • the inner periphery of the frame body 351 is formed with a second connecting portion 355 extending away from the diaphragm 31 .
  • the frame body 351 is provided with a hollow area 350 , and the first connecting portion 353 is connected to the elastic support described later.
  • the voice coil 33 is connected to the second connecting portion 355 .
  • the voice coil 33 drives the diaphragm 31 to vibrate and emit sound through the frame 35 , and at the same time, the frame 35 also drives the elastic support 7 to vibrate together.
  • 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 notch 357 is set so that after the voice coil 33 is connected with the second connecting part 355, there is an air flow channel between the voice coil 33 and the second connecting part 355, so that when the sound-emitting device vibrates , equalize the air pressure inside the sounding device.
  • 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 , FIG. 8 and FIG. 9 , 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 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 pads of the voice coil 33 and the leads of the voice coil 33 serves to electrically connect the voice coil 33, and the pads on the holding portion 711 are 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. 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 clamp plate 57 has a through hole 571, and the pole core 59 is located in the through hole 571; the upper clamp plate 57 and the pole core 59 are both made of magnetically conductive materials, and the upper clamp plate 57 And the magnetic permeability of the pole core 59 can enhance the magnetic flux in the magnetic gap 5A.
  • 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 .
  • 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 portion 551 and the second magnetic portion 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.
  • a boss 57A is formed on the side of the upper splint 57 facing the vibrating membrane 31 .
  • the projection 57A is located in the hollow along the vibration direction of the vibrating membrane 31 on the frame body 351 . area 350.
  • the thickness of the boss 57A along the vibration direction of the diaphragm 31 should not be greater than the thickness of the skeleton body 351 along the vibration direction of the diaphragm 31 .
  • the thickness of the frame body 351 along the vibration direction of the diaphragm 31 is equal to the thickness of the boss 57A along the vibration direction of the diaphragm 31 .
  • the boss 57A is formed on the inner edge of the upper clamping plate 57 . Therefore, the utilization rate of the magnetic permeability of the bosses 57A can be maximized.
  • the upper clamping plate 57 includes a first plate portion 571 covering the first magnetic portion 551 and a second plate portion 573 covering the second magnetic portion 553 .
  • the first plate portion 571 and Each of the second plate portions 573 is provided with at least one of the bosses 57A.
  • an escape groove 73A is formed on the auxiliary diaphragm 73
  • 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 edge 331 to In the extending portion 557 in the avoiding groove 73A, the first connecting portion 353 is provided with a notch 35A for avoiding the extending portion 557 .
  • the first magnetic portion 551 extends into the escape groove 73A; in this way, not only can
  • the volume of the magnetic circuit system is increased to increase the BL value, and by removing the material in the notch 35A area on the skeleton, the weight of the vibration system can be effectively reduced to improve the sensitivity of the sound-emitting device.
  • the escape groove 73A extends from the side of the second fixing portion 733 away from the first fixing portion 731 to the folding ring portion 735 .

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

Abstract

本发明提供了一种发声器件，其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，骨架包括呈环状且固定于振膜的骨架主体、自骨架主体的外周缘向远离振膜方向延伸形成的第一连接部以及自骨架主体的内周缘向远离振膜方向延伸形成的第二连接部，音圈固定于第二连接部，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，骨架主体上设有镂空区域。本发明提供的发声器件能有效降低振动系统重量以提高发声器件的灵敏度。

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，振动系统包括振膜、音圈以及骨架，音圈的侧边设有弹性支撑件，振膜通过骨架分别与音圈和弹性支撑件连接。然而，这种发声器件的振动系统重量会导致产品灵敏度稍低。
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，该发声器件能有效降低振动系统重量以提高发声器件的灵敏度。
 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，所述骨架包括呈环状且固定于所述振膜的骨架主体、自所述骨架主体的外周缘向远离所述振膜方向延伸形成的第一连接部以及自所述骨架主体的内周缘向远离所述振膜方向延伸形成的第二连接部，所述音圈固定于所述第二连接部，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，所述骨架主体上设有镂空区域。
优选地，所述磁路系统包括磁轭、固定在所述磁轭上的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、盖设于所述主磁体上的极芯以及盖设于所述副磁体上的上夹板，所述副磁体包括与所述第一侧边间隔设置的第一磁部以及与所述第二侧边间隔设置的第二磁部。
优选地，所述上夹板朝向所述振膜的一侧凸起形成有凸台，所述凸台沿所述振膜的振动方向在所述骨架主体上的正投影位于所述镂空区域的范围内。
优选地，所述骨架主体沿所述振膜的振动方向上的厚度等于所述凸台沿所述振膜的振动方向上的厚度。
优选地，所述凸台形成于所述上夹板的内边缘。
优选地，所述上夹板包括盖设于所述第一磁部上的第一板部及盖设于所述第二磁部上的第二板部，所述第一板部和所述第二板部上均设有至少一个所述凸台。
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，所述弹性支撑件与所述第一侧边围合形成收容空间，所述第一磁部位于所述收容空间内，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。
 有益效果
与相关技术相比，本发明提供的发声器件通过在骨架的骨架主体上设置镂空区域，以使得骨架主体均保留部分材料满足支撑强度，从而可以有效降低振动系统重量以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所示发声器件中上夹板的结构示意图。
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5所示发声器件去磁轭后的另一角度的结构示意图。
图9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10为图1所示发声器件中上夹板、副磁体及骨架组装后的立体图。
图11为图1所示发声器件中上夹板、副磁体及骨架组装后的俯视图。
 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11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、驱动所述振膜31振动发声的音圈33以及骨架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。
所述骨架35包括呈环状且固定于所述振膜31的骨架主体351、自所述骨架主体351的外周缘向远离所述振膜31方向延伸形成的第一连接部353以及自所述骨架主体351的内周缘向远离所述振膜31方向延伸形成的第二连接部355，所述骨架主体351上设有镂空区域350，所述第一连接部353与后述所述的弹性支撑件7连接，所述音圈33连接于所述第二连接部355。其中，所述音圈33通过所述骨架35驱动所述振膜31振动发声，同时，所述骨架35还带动所述弹性支撑件7一同振动。
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。所述豁口357的设置，使得所述音圈33与所述第二连接部355连接后，所述音圈33与所述第二连接部355之间具有气流通道，从而可以在发声器件振动时，平衡发声器件内的气压。
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、图8及图9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。
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6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；所述上夹板57和所述极芯59均由导磁材料制成，通过所述上夹板57和所述极芯59的导磁作用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。
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。
所述上夹板57朝向所述振膜31的一侧凸起形成有凸台57A，所述凸台57A沿所述振膜31的振动方向在所述骨架主体351上的正投影位于所述镂空区域350的范围内。通过对所述上夹板57正对所述镂空区域350的位置进行加厚处理，可以提高所述上夹板57的导磁作用，从而有利于提高所述磁间隙5A内的磁通量。
所述凸台57A在同等面积的情况下，其厚度越厚，导磁作用越明显，但为了避免所述振膜31在振动过程中因与所述凸台57A发声碰撞而导致所述振膜31损坏，所述凸台57A沿所述振膜31的振动方向上的厚度值应当不大于所述骨架主体351沿所述振膜31的振动方向上的厚度值。在本实施例中，所述骨架主体351沿所述振膜31的振动方向上的厚度等于所述凸台57A沿所述振膜31的振动方向上的厚度。
在本实施例中，所述凸台57A形成于所述上夹板57的内边缘。从而可以使所述凸台57A的导磁作用的利用率最大化。
所述上夹板57包括盖设于所述第一磁部551上的第一板部571及盖设于所述第二磁部553上的第二板部573，所述第一板部571和所述第二板部573上均设有至少一个所述凸台57A。
在本实施例中，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。通过在所述辅助振膜73上开设避让槽73A以及在所述第一连接部353上设置槽口35A，以使得所述第一磁部551延伸至所述避让槽73A内；这样，不仅可以增加磁路系统体积以增大BL值，而且通过去掉骨架上槽口35A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。
如图1和图6所示，所述避让槽73A自所述第二固定部733远离所述第一固定部731一侧延伸至所述折环部735上。
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，所述骨架包括呈环状且固定于所述振膜的骨架主体、自所述骨架主体的外周缘向远离所述振膜方向延伸形成的第一连接部以及自所述骨架主体的内周缘向远离所述振膜方向延伸形成的第二连接部，所述音圈固定于所述第二连接部，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，其特征在于：所述骨架主体上设有镂空区域。
  2. 根据权利要求1所述的发声器件，其特征在于：所述磁路系统包括磁轭、固定在所述磁轭上的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、盖设于所述主磁体上的极芯以及盖设于所述副磁体上的上夹板，所述副磁体包括与所述第一侧边间隔设置的第一磁部以及与所述第二侧边间隔设置的第二磁部。
  3. 根据权利要求2所述的发声器件，其特征在于：所述上夹板朝向所述振膜的一侧凸起形成有凸台，所述凸台沿所述振膜的振动方向在所述骨架主体上的正投影位于所述镂空区域的范围内。
  4. 根据权利要求3所述的发声器件，其特征在于：所述骨架主体沿所述振膜的振动方向上的厚度等于所述凸台沿所述振膜的振动方向上的厚度。
  5. 根据权利要求3所述的发声器件，其特征在于：所述凸台形成于所述上夹板的内边缘。
  6. 根据权利要求3-5中任一项所述的发声器件，其特征在于：所述上夹板包括盖设于所述第一磁部上的第一板部及盖设于所述第二磁部上的第二板部，所述第一板部和所述第二板部上均设有至少一个所述凸台。
  7. 根据权利要求2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。
  8. 根据权利要求2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。
  9. 根据权利要求2所述的发声器件，其特征在于：所述弹性支撑件与所述第一侧边围合形成收容空间，所述第一磁部位于所述收容空间内，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。
  10. 根据权利要求9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。
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