WO2020134344A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2020134344A1
WO2020134344A1 PCT/CN2019/110611 CN2019110611W WO2020134344A1 WO 2020134344 A1 WO2020134344 A1 WO 2020134344A1 CN 2019110611 W CN2019110611 W CN 2019110611W WO 2020134344 A1 WO2020134344 A1 WO 2020134344A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
magnetic steel
elastic support
fixed
sound
Prior art date
Application number
PCT/CN2019/110611
Other languages
English (en)
French (fr)
Inventor
刘晓东
张龙
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 WO2020134344A1 publication Critical patent/WO2020134344A1/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
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • 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
    • H04R7/04—Plane diaphragms
    • 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

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 vibration system of the related-art sound-generating device includes a diaphragm for vibrating and sounding fixed to the basin frame, a voice coil attached to the diaphragm, and a voice coil supported at an end of the voice coil away from the diaphragm to strengthen the
  • An elastic support assembly for the lateral stability of the voice coil includes a yoke fixed to the basin frame, a main magnetic steel fixed to the yoke, respectively disposed on opposite sides of the main magnetic steel and The main magnetic steel is separated by two auxiliary magnetic steels forming a magnetic gap and a clamping plate stacked on the auxiliary magnetic steel;
  • the elastic support assembly includes two and are respectively located on two opposite sides of the main magnetic steel.
  • the gap between the position where the splint faces the elastic support assembly and the voice coil is large, and the space is not effectively used, which limits the acoustic performance of the sound-generating device .
  • the purpose of the utility model is to provide a sound-generating device with excellent acoustic performance.
  • 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 a sound frame fixed to the basin frame A diaphragm, a voice coil fixed to the diaphragm and inserted in the magnetic gap to drive the diaphragm to vibrate and sound, and an elasticity fixed to the basin frame and connected to an end of the voice coil away from the diaphragm Support assembly;
  • the magnetic circuit system includes a yoke fixed to the basin frame, a main magnet fixed to the yoke, respectively located on opposite sides of the main magnet and spaced apart from the main magnet
  • the auxiliary magnetic steel of the magnetic gap and a splint stacked on the auxiliary magnetic steel and spaced apart from the elastic support assembly; the elastic support assembly and the auxiliary magnetic steel are in the magnetic direction along the vibration direction of the diaphragm
  • the orthographic projection on the yoke is at least partially non-overlapping.
  • the splint includes a ring-shaped main body stacked on the auxiliary magnetic steel and two opposite sides of the main body respectively extending in the direction of the main magnetic steel and Extending walls spaced apart by a circle, the extending walls are respectively opposite to the elastic support assembly and arranged at intervals.
  • the extension wall is parallel to the elastic support assembly.
  • the main magnetic steel has a rectangular shape
  • two of the auxiliary magnetic steels are respectively located on opposite sides of the long axis of the main body
  • two of the elastic support components are respectively located on opposite sides of the main magnet short axis.
  • the main body has a rectangular shape, the two opposite sides of the main axis of the main body are stacked on the two secondary magnetic steels respectively, and the extension wall is formed by the two opposite sides of the main axis of the main body and is suspended on the Between the diaphragm and the elastic support assembly.
  • the elastic support assembly includes an elastic member fixed at one end to the basin frame, at the other end to the voice coil away from the diaphragm, and an auxiliary connected to the elastic member at a side away from the diaphragm Diaphragm.
  • the elastic member is a flexible circuit board, and the voice coil is electrically connected to the elastic member.
  • the orthographic projections of the extension wall and the auxiliary magnetic steel on the yoke along the vibration direction of the diaphragm do not overlap each other.
  • the sound-emitting device further includes a front cover disposed on an end of the basin frame near the diaphragm, the diaphragm is sandwiched between the front cover and the basin frame, the front cover and the The diaphragm surrounds a sound-emitting cavity, and the front cover is provided with a sound outlet.
  • the vibration system includes a diaphragm, a voice coil fixed to the diaphragm and driving it to vibrate, and an elastic support assembly connected to the end of the voice coil away from the diaphragm ,
  • the clamping plate of the magnetic circuit system extends to form the extension wall corresponding to the position of the elastic support assembly, and the extension wall collects and guides the magnetic force lines generated by the auxiliary magnetic steel to the voice coil, so that the extension The wall is as close to the voice coil as possible, effectively increasing the magnetic line density of the voice coil, improving the driving magnetic force of the magnetic circuit system, and thereby improving the acoustic performance of the sound-generating device.
  • Figure 1 is a schematic diagram of the stereo structure of the utility model sound-generating device
  • FIG. 2 is an exploded view of a partial stereo structure of the sound-generating device of the present invention
  • Fig. 3 is a cross-sectional view taken along line A-A in Fig. 1.
  • the present invention provides a sound-generating device 100, including a basin frame 1, a vibration system 2 and a magnetic circuit system 3 respectively fixed to the basin frame 1, and a front cover 4, the magnetic circuit system 3 With a magnetic gap 10, the magnetic circuit system 3 is used to drive the vibration system 2 to vibrate and sound.
  • the vibration system 2 includes a diaphragm 21 fixed to the basin frame 1, a voice coil 22 fixed to the diaphragm 21 and inserted into the magnetic gap 10 to drive the diaphragm 21 to vibrate and sound, and fixed to An elastic support assembly 23 connected to the end of the basin frame 1 and the voice coil 22 away from the diaphragm 21.
  • the elastic support assembly 23 includes an elastic member 231 and an auxiliary diaphragm 232 connected to the elastic member 231.
  • the elastic support assembly 23 connects and supports the end of the voice coil 22 away from the diaphragm 21 to the basin frame 1. On the one hand, it is used to strengthen the vibration effect of the diaphragm 21 and improve the acoustic performance of the sound-generating device 100, and on the other hand, it is used to balance the sway of the vibration system 2 and improve the stability of the sound-generating device 100. It should be noted that the elastic support assembly 23 may also include only one of the elastic member 231 or the auxiliary diaphragm 232, which is also feasible.
  • 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 improve the vibration strength and balance of the vibration system 2 and to suppress sway. On the other hand, the voice coil 22 is led to connect to an external power supply, avoiding the risk of the voice coil lead being easily broken when the voice coil lead structure is led out .
  • the magnetic circuit system 3 includes a magnetic yoke 31 fixed to the basin frame 1, a main magnetic steel 32 fixed to the magnetic yoke 31, and respectively located on opposite sides of the main magnetic steel 32 and connected to the main magnetic steel 32 spaced apart two secondary magnetic steels 33 forming the magnetic gap 10 and a clamping plate 34 stacked on the secondary magnetic steels 33 and spaced apart from the elastic support assembly 23.
  • the clamping plate 34 includes a ring-shaped main body 341 stacked on the auxiliary magnetic steel 33 and two sides extending from the opposite sides of the main body 341 toward the main magnetic steel 32 and spaced apart from the voice coil 22 Out extension wall 342.
  • the orthographic projection of the elastic support assembly 23 and the auxiliary magnetic steel 33 on the yoke 31 along the vibration direction of the diaphragm 21 does not overlap at least partially.
  • the orthographic projections of the extension wall 342 and the auxiliary magnetic steel 33 on the yoke 31 along the vibration direction of the diaphragm 21 do not overlap each other.
  • extension wall 342 is parallel to the elastic support assembly 2.
  • the elastic support components 23 include two and are located on opposite sides of the main magnet 32 respectively, and the two extension walls 342 are directly opposed to and spaced from the two elastic support components 23, respectively.
  • the two elastic support assemblies 23 have a centrally symmetric structure with respect to the main magnetic steel 32, and this arrangement makes the vibration balance of the vibration system 2 better.
  • the main magnetic steel 32 has a rectangular shape, two auxiliary magnetic steels 33 are respectively located on opposite sides of the long axis of the main magnetic steel 32, and two elastic support assemblies 23 are respectively located on the main magnetic steel 32
  • Two opposite sides of the shaft extend and are suspended between the diaphragm 21 and the elastic support assembly 23. This setting can maximize the structural volume of the magnetic circuit system 3 and maximize the magnetic field strength.
  • the position of the clamping plate 34 facing the elastic support assembly 23 is not provided with a magnetic steel structure because of the need to give way to the elastic support assembly 23, so that the position is away from the voice coil 22 and the diaphragm 21
  • two extension walls 342 are formed by processing and extending at this position.
  • the above structure allows the extension wall 342 to approach the voice coil 22 as much as possible, so that the magnetic field lines passing through the voice coil 22 are more
  • the concentration effectively increases the magnetic field line density of the voice coil 22, greatly improving the driving performance of the magnetic circuit system 3, and making the acoustic performance of the sound emitting device 100 better.
  • the front cover 4 covers the end of the basin frame 1 close to the diaphragm 21 and surrounds the diaphragm 21 to form a sound-emitting cavity.
  • the front cover 4 is provided with a sound outlet 41 and the cover is provided on
  • the damping layer 42 of the sound outlet 41 is used to adjust the high-frequency acoustic performance of sound generation.
  • the vibration system includes a diaphragm, a voice coil fixed to the diaphragm and driving it to vibrate, and an elastic support assembly connected to the end of the voice coil away from the diaphragm ,
  • the clamping plate of the magnetic circuit system extends to form the extension wall corresponding to the position of the elastic support assembly, and the extension wall collects and guides the magnetic force lines generated by the auxiliary magnetic steel to the voice coil, so that the extension The wall is as close to the voice coil as possible, effectively increasing the magnetic line density of the voice coil, improving the driving magnetic force of the magnetic circuit system, and thereby improving the acoustic performance of the sound-generating device.

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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和具有磁间隙的磁路系统，振动系统包括固定于盆架的振膜、固定于振膜并插设于磁间隙的音圈以及固定于盆架并与音圈连接的弹性支撑组件；磁路系统包括固定于盆架的磁轭、固定于磁轭的主磁钢、分别位于主磁钢相对两侧且与主磁钢间隔形成磁间隙的两个副磁钢以及叠设于副磁钢且与弹性支撑组件间隔的夹板；弹性支撑组件包括两个且分别位于主磁钢的另外相对两侧；夹板包括叠设于副磁钢且呈环状的主体和由主体相对两侧分别向主磁钢方向延伸且与音圈间隔的两个延伸壁，两个延伸壁分别与两个弹性支撑组件正对且间隔设置。与相关技术相比，本实用新型的发声器件声学性能优。

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。而运用在发声器件的振动系统和磁路系统直接关系着发声器件的音质好坏。
相关技术发声器件的振动系统包括固定于盆架的用于振动发声的振膜、贴设于所述振膜的音圈、支撑于所述音圈远离所述振膜一端的用于加强所述音圈的横向稳定性弹性支撑组件；所述磁路系统包括固定于盆架的磁轭、固定于所述磁轭的主磁钢、分别设置于所述主磁钢相对两侧且与所述主磁钢间隔形成磁间隙的两个副磁钢以及叠设于所述副磁钢的夹板；所述弹性支撑组件包括两个且分别位于所述主磁钢的另外相对两侧。
 技术问题
然而，相关技术的所述发声器件中，所述夹板正对所述弹性支撑组件的位置与所述音圈之间的间隙较大，空间未能有效利用，限制了所述发声器件的声学性能。
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优的发声器件。
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和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、固定于所述振膜并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音圈远离所述振膜一端连接的弹性支撑组件；所述磁路系统包括固定于所述盆架的磁轭、固定于所述磁轭的主磁钢、分别位于所述主磁钢相对两侧且与所述主磁钢间隔形成所述磁间隙的副磁钢以及叠设于所述副磁钢且与所述弹性支撑组件间隔的夹板；所述弹性支撑组件与所述副磁钢沿所述振膜的振动方向在所述磁轭上的正投影至少部分不重叠，所述夹板包括叠设于所述副磁钢且呈环状的主体和由所述主体相对两侧分别向所述主磁钢方向延伸且与所述音圈间隔的延伸壁，所述延伸壁分别与所述弹性支撑组件正对且间隔设置。
优选的，所述延伸壁平行于所述弹性支撑组件。
优选的，所述主磁钢呈矩形，两个所述副磁钢分别位于所述主体长轴相对两侧，两个所述弹性支撑组件分别位于所述主磁钢短轴相对两侧。
优选的，所述主体呈矩形，所述主体长轴相对两侧分别叠设于两个所述副磁钢，所述延伸壁由所述主体短轴相对两侧延伸形成并悬置于所述振膜与所述弹性支撑组件之间。
优选的，所述弹性支撑组件包括一端固定于所述盆架，另一端固定于所述音圈远离所述振膜一端的弹性件以及连接于所述弹性件远离所述振膜一侧的辅助振膜。
优选的，所述弹性件为柔性电路板，所述音圈与所述弹性件电连接。
优选的，所述延伸壁和所述副磁钢沿所述振膜的振动方向在所述磁轭上的正投影互不重叠。
优选的，所述发声器件还包括盖设在所述盆架靠近振膜一端的前盖，所述振膜夹设于所述前盖与所述盆架之间，所述前盖与所述振膜围成发声腔体，所述前盖设有出声口。
 有益效果
与相关技术相比，本实用新型的发声器件中，所述振动系统包括振膜、固定于所述振膜并驱动其振动的音圈和连接于音圈远离所述振膜一端的弹性支撑组件，所述磁路系统的所述夹板对应所述弹性支撑组件的位置延伸形成所述延伸壁，所述延伸壁将所述副磁钢产生的磁力线汇集并导向所述音圈，使所述延伸壁尽最大程度地向所述音圈靠近，有效地使得所述音圈的磁力线密度增加，提高了所述磁路系统的驱动磁力，从而改善所述发声器件的声学性能。
 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。
 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。
请参图1-3所示，本实用新型提供一种发声器件100，包括盆架1、分别固定于盆架1的振动系统2和磁路系统3以及前盖4，所述磁路系统3具有磁间隙10，所述磁路系统3用于驱动所述振动系统2振动发声。
所述振动系统2包括固定于所述盆架1的振膜21、固定于所述振膜21并插设于所述磁间隙10以驱动所述振膜21振动发声的音圈22以及固定于所述盆架1并与所述音圈22远离所述振膜21一端连接的弹性支撑组件23。
本实施方式中，所述弹性支撑组件23包括弹性件231和连接于所述弹性件231的辅助振膜232。
所述弹性件231一端固定于所述盆架1，另一端固定于所述音圈22的远离所述振膜21一端，所述辅助振膜232连接于所述弹性件231。比如，所述辅助振膜232贴合固定于所述弹性件231的远离所述振膜21的一侧。所述弹性支撑组件23将所述音圈22远离所述振膜21的一端连接支撑至所述盆架1。一方面用于加强所述振膜21的振动效果，改善所述发声器件100的声学性能，另一方面用于平衡所述振动系统2的摇摆，提高所述发声器件100的稳定性。需要说明的是，所述弹性支撑组件23可也可只包括弹性件231或所述辅助振膜232的其中一个，这也是可行的。
更优的，所述弹性件231为柔性电路板，所述音圈22与所述弹性件231电连接。一方面用于提高所述振动系统2的振动强度和平衡，抑制摇摆，另一方向为所述音圈22引出至连接外部电源，避免了音圈引线结构引出电源时音圈引线容易断裂的风险。
所述磁路系统3包括固定于所述盆架1的磁轭31、固定于所述磁轭31的主磁钢32、分别位于所述主磁钢32相对两侧且与所述主磁钢32间隔形成所述磁间隙10的两个副磁钢33以及叠设于所述副磁钢33且与所述弹性支撑组件23间隔的夹板34。
所述夹板34包括叠设于所述副磁钢33且呈环状的主体341和由所述主体341相对两侧分别向所述主磁钢32方向延伸且与所述音圈22间隔的两个延伸壁342。所述弹性支撑组件23与所述副磁钢33沿所述振膜21的振动方向在所述磁轭31上的正投影至少部分不重叠。所述延伸壁342和所述副磁钢33沿所述振膜21的振动方向在所述磁轭31上的正投影互不重叠。
具体的，所述延伸壁342平行于所述弹性支撑组件2。
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主磁钢32的另外相对两侧，两个所述延伸壁342分别与两个所述弹性支撑组件23正对且间隔设置。两个所述弹性支撑组件23关于所述主磁钢32呈中心对称结构，该设置使所述振动系统2的振动平衡性更好。
进一步的，所述主磁钢32呈矩形，两个所述副磁钢33分别位于所述主磁钢32长轴相对两侧，两个所述弹性支撑组件23分别位于所述主磁钢32短轴相对两侧；更进一步的，所述主体341呈矩形，所述主体341长轴相对两侧分别叠设于两个所述副磁钢33，所述延伸壁342由所述主体341短轴相对两侧延伸形成并悬置于所述振膜21与所述弹性支撑组件23之间。该设置则可尽最大程度的保持磁路系统3的结构体积最大化，从而保持磁场强度。
相关技术中所述夹板34正对所述弹性支撑组件23的位置因需给所述弹性支撑组件23让位而没有设置磁钢结构，使得该位置距所述音圈22及所述振膜21存在较大的空间未被有效利用，从而限制了所述磁路系统3的驱动力，进而限制了所述发声器件100的声学性能。因此，本实用新型中在该位置处理延伸形成两个所述延伸壁342，上述结构使得所述延伸壁342尽最大程度地向所述音圈22靠近，使得通过所述音圈22的磁力线更加集中，有效地使得所述音圈22的磁力线密度增加，极大程度提高了所述磁路系统3的驱动性能，使得所述发声器件100的声学性能更好。
所述前盖4盖设于所述盆架1的靠近所述振膜21的一端且与所述振膜21围成发声腔体，所述前盖4设有出声口41以及盖设于所述出声口41的阻尼层42，用以实现发声的高频声学性能的调节。
与相关技术相比，本实用新型的发声器件中，所述振动系统包括振膜、固定于所述振膜并驱动其振动的音圈和连接于音圈远离所述振膜一端的弹性支撑组件，所述磁路系统的所述夹板对应所述弹性支撑组件的位置延伸形成所述延伸壁，所述延伸壁将所述副磁钢产生的磁力线汇集并导向所述音圈，使所述延伸壁尽最大程度地向所述音圈靠近，有效地使得所述音圈的磁力线密度增加，提高了所述磁路系统的驱动磁力，从而改善所述发声器件的声学性能。
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 (8)

  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和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、固定于所述振膜并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音圈远离所述振膜一端连接的弹性支撑组件；所述磁路系统包括固定于所述盆架的磁轭、固定于所述磁轭的主磁钢、分别位于所述主磁钢相对两侧且与所述主磁钢间隔形成所述磁间隙的副磁钢以及叠设于所述副磁钢且与所述弹性支撑组件间隔的夹板；所述弹性支撑组件与所述副磁钢沿所述振膜的振动方向在所述磁轭上的正投影至少部分不重叠，其特征在于，所述夹板包括叠设于所述副磁钢且呈环状的主体和由所述主体相对两侧分别向所述主磁钢方向延伸且与所述音圈间隔的延伸壁，所述延伸壁分别与所述弹性支撑组件正对且间隔设置。
  2. 根据权利要求1所述的发声器件，其特征在于，所述延伸壁平行于所述弹性支撑组件。
  3. 根据权利要求1所述的发声器件，其特征在于，所述主磁钢呈矩形，所述副磁钢分别位于所述主体长轴相对两侧，所述弹性支撑组件分别位于所述主磁钢短轴相对两侧。
  4. 根据权利要求3所述的发声器件，其特征在于，所述主体呈矩形，所述主体长轴相对两侧分别叠设于所述副磁钢，所述延伸壁由所述主体短轴相对两侧延伸形成并悬置于所述振膜与所述弹性支撑组件之间。
  5. 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一端固定于所述盆架，另一端固定于所述音圈远离所述振膜一端的弹性件以及连接于所述弹性件远离所述振膜一侧的辅助振膜。
  6. 根据权利要求5所述的发声器件，其特征在于，所述弹性件为柔性电路板，所述音圈与所述弹性件电连接。
  7. 根据权利要求1所述的发声器件，其特征在于，所述延伸壁和所述副磁钢沿所述振膜的振动方向在所述磁轭上的正投影互不重叠。
  8. 根据权利要求1所述的发声器件，其特征在于，还包括盖设在所述盆架靠近振膜一端的前盖，所述振膜夹设于所述前盖与所述盆架之间，所述前盖与所述振膜围成发声腔体，所述前盖设有出声口。
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