WO2021114211A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2021114211A1
WO2021114211A1 PCT/CN2019/125075 CN2019125075W WO2021114211A1 WO 2021114211 A1 WO2021114211 A1 WO 2021114211A1 CN 2019125075 W CN2019125075 W CN 2019125075W WO 2021114211 A1 WO2021114211 A1 WO 2021114211A1
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WO
WIPO (PCT)
Prior art keywords
voice coil
diaphragm
arm
fixed
frame
Prior art date
Application number
PCT/CN2019/125075
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English (en)
French (fr)
Inventor
宋威
张帆
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.)
Filing date
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
Priority to PCT/CN2019/125075 priority Critical patent/WO2021114211A1/zh
Publication of WO2021114211A1 publication Critical patent/WO2021114211A1/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

Definitions

  • the invention relates to the field of electro-acoustic conversion, in particular to a sound-producing device used in portable electronic products.
  • the sound device in the related art includes a basin frame, a vibration system 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, inserted in the The magnetic gap is used to drive the voice coil of the diaphragm to vibrate and produce sound, and one end is fixed to the frame, and the other end is fixed to the auxiliary vibrating member at the end of the voice coil away from the diaphragm.
  • the auxiliary vibrating member includes an elastic sheet and a sticker. Auxiliary vibrating member fitted to the elastic sheet.
  • the magnetic circuit system includes a magnetic yoke, a main magnetic steel fixed to the magnetic yoke, and a secondary magnetic steel ringed on the main magnetic steel and separated from the main magnetic steel to form the magnetic gap.
  • the diaphragm and the auxiliary vibrating member are respectively fixed at opposite ends of the voice coil.
  • the auxiliary vibrating member can effectively increase the vibration performance of the diaphragm, it
  • the fitting design of the shrapnel and the auxiliary vibrating part makes the two influence and restrict each other, and the space cannot be effectively used; moreover, the shrapnel needs to extend into the magnetic gap to be electrically connected to the voice coil, so that the auxiliary magnet needs to form a way out, resulting in a magnetic circuit system
  • the volume reduction is limited, so that the improvement of the acoustic performance of the sound emitting device is limited.
  • the purpose of the present invention is to overcome the above technical problems and provide a sound generating device with good reliability and good acoustic performance.
  • the present invention provides a sound emitting device, which includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system with a magnetic gap; the vibration system includes a vibration system fixed to the basin frame.
  • the elastic conductive member includes a fixed arm fixed to the basin frame, a connecting arm attached to the side of the diaphragm close to the voice coil, and connecting the fixed arm and The elastic arm of the connecting arm is electrically connected to the voice coil, and the elastic arm is spaced apart from the diaphragm and suspended below the diaphragm.
  • the elastic conductive member includes two elastic conductive members, and the two elastic conductive members are spaced apart from each other and arranged symmetrically.
  • the basin frame is rectangular, and in the same elastic conductive member, the fixing arms include two, and the two fixing arms are respectively fixed to the two short axis sides of the basin frame; the elastic arm It includes two first elastic arms and a second elastic arm connecting the two first elastic arms to the fixed arm at the same time.
  • the first elastic arm is bent by one end of the fixed arm and runs along the basin One of the long axis sides of the frame extends to be connected with the second elastic arm.
  • the orthographic projection of the connecting arm to the voice coil along the vibration direction of the diaphragm is at least partially located on the inner side of the voice coil, and the connecting arm is located on the inner side of the voice coil.
  • the voice coil is electrically connected.
  • the frame includes a frame connecting part arranged around the outer side of the voice coil and arranged opposite to the voice coil and jointly enclosing a receiving space, and the frame connecting part is provided with a top opposite to the diaphragm.
  • the side wall is arranged opposite to the voice coil at intervals.
  • the skeleton further includes a skeleton support part located inside the skeleton connection part and arranged at intervals, and a skeleton extension part connecting the skeleton support part and the skeleton connection part;
  • the skeleton support part is located on the diaphragm Between the voice coil and the voice coil and suspend the voice coil under the diaphragm, and the frame extension part connects the frame support part close to the end of the diaphragm and the top wall of the frame connection part Connection;
  • the frame support portion is provided with a break, and the connecting arm extends from above the voice coil to the inside of the voice coil through the break.
  • the diaphragm includes a vibration part, a folding ring part bent and extended from the periphery of the vibration part, and a fixing part bent and extended outward from a side of the folding ring part away from the vibration part, so
  • the fixing portion is fixed to the basin frame;
  • the folding ring portion has an arc structure that is recessed away from the magnetic circuit system, and the elastic arm is spaced from the folding ring portion and vibrates along the diaphragm
  • the orthographic projection of the direction to the folding ring part completely falls within the range of the folding ring part; the connecting arm is attached to the side of the vibrating part close to the voice coil.
  • the vibrating part includes a main body of the vibrating part, a through opening that penetrates the main body of the vibrating part along the direction of vibration, and a dome covering the main body of the vibrating part and completely covering the through opening, and the connecting arm Attached to the dome; the top wall of the frame connecting part is connected to the main body of the vibrating part.
  • the voice coil has a rectangular structure with rounded corners
  • the frame extension includes four and is located at the four rounded corners of the voice coil
  • the frame connecting portion includes two and each is located at the corners of the voice coil. The opposite sides of the minor axis of the voice coil.
  • the magnetic circuit system includes a magnetic yoke, a main magnetic steel fixed to the magnetic yoke, and a pole plate attached to the main magnetic steel, and a side of the pole plate close to the diaphragm is provided with and A relief slot corresponding to the connecting arm.
  • the voice coil and the auxiliary vibrating part are spaced apart, and the auxiliary vibrating part is connected with the diaphragm by setting a skeleton, so as to realize the enhancement of the vibration performance of the diaphragm.
  • Purpose, and the auxiliary vibrating part realizes independent design, and the vibration of the voice coil can be better suppressed after the frame is connected to the voice coil; at the same time, the elastic conductive part is arranged between the diaphragm and the basin frame, including the one fixed to the basin frame.
  • the arm and the diaphragm are arranged at intervals and suspended below the diaphragm.
  • the auxiliary vibrating parts are not directly glued to the voice coil, and the elastic conductive parts are not directly connected to the voice coil.
  • the lower end is connected, the magnetic circuit system does not need to give way to auxiliary vibrating parts and elastic conductive parts.
  • the magnetic circuit system can maximize the ring-shaped magnetic circuit structure, which effectively improves the acoustic performance of the sound-producing device; moreover, the voice coil is close to the diaphragm.
  • One end is electrically connected with the elastic conductive member, so that the elastic arm can make full use of the space under the diaphragm for design, and the elastic arm has greater freedom and better reliability.
  • Figure 1 is a schematic diagram of the three-dimensional structure of the sound generating device of the present invention.
  • FIG. 2 is an exploded schematic diagram of a part of the three-dimensional 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;
  • Figure 4 is an enlarged view of part B shown in Figure 3;
  • Figure 5 is a cross-sectional view taken along line C-C in Figure 1;
  • Figure 6 is an enlarged view of a part of D shown in Figure 5;
  • FIG. 7 is a schematic diagram of the three-dimensional structure of the elastic conductive member of the sound generating device of the present invention.
  • FIG. 8 is a schematic diagram of the three-dimensional structure of the skeleton of the sound generating device of the present invention.
  • FIG. 9 is a schematic diagram of the assembly structure of the skeleton, the elastic conductive member, the auxiliary vibration member and the voice coil of the sound device of the present invention.
  • Fig. 10 is a schematic diagram of the assembly structure of the skeleton, the elastic conductive member, the auxiliary vibrating member, the voice coil, the main magnet and the auxiliary magnet of the sound device of the present invention.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of the sound emitting device of the present invention.
  • the present invention provides a sound generating 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, and in this embodiment, the basin frame 1 is rectangular.
  • the magnetic circuit system 3 has a magnetic gap 30, and the magnetic circuit system 3 is used to drive the vibration system 2 to vibrate and produce sound.
  • the vibration system 2 includes a diaphragm 21 fixed to the basin frame 1, a voice coil 22 inserted in the magnetic gap 30 and driving the diaphragm to vibrate and produce sound, fixed to the basin frame 1 and connected to the Auxiliary vibrating parts 23 arranged at relatively intervals between the vibrating membrane 21, an elastic conductive member 24 located at one end of the voice coil 22 close to the vibrating membrane 21, and a skeleton 25 connecting the auxiliary vibrating part 23 and the vibrating membrane 21.
  • one end of the auxiliary vibrating element 23 is fixed to the basin frame 1, and the other end is supported and fixed to the frame 25, and the elastic conductive element 24 is located between the basin frame 1 and the diaphragm 21.
  • Figure 3 is a cross-sectional view along the line AA in Figure 1;
  • Figure 4 is an enlarged view of the part shown in Figure 3 B;
  • Figure 5 is along the CC line in Figure 1 .
  • Fig. 6 is a partial enlarged view of D in Fig. 5;
  • Fig. 7 is a schematic diagram of a three-dimensional structure of the elastic conductive member of the sound-generating device of the present invention;
  • Fig. 8 is a schematic diagram of the three-dimensional structure of the skeleton of the sound-generating device of the present invention;
  • FIG. 10 is the skeleton, elastic conductive parts, auxiliary vibrating parts, voice coil, main magnet and auxiliary magnet of the sound generating device of the present invention Schematic diagram of the assembly structure.
  • the diaphragm 21 includes a vibration portion 211, a folding ring portion 212 extending from the periphery of the vibration portion 211, and a side of the folding ring portion 212 away from the vibration portion 211 that is bent outward.
  • the fixing portion 213 is fixed to the basin frame 1, and the folding ring portion 212 has an arc structure that is recessed in a direction away from the magnetic circuit system 3.
  • the vibrating portion 211 includes a vibrating portion main body 2111, a through opening 2112 penetrating the vibrating portion main body 2111 along the vibration direction of the diaphragm 21, and a cover provided on the vibrating portion main body 2111 and completely covering the vibrating portion main body 2111.
  • the voice coil 22 has a rectangular structure with rounded corners.
  • the auxiliary vibrating member 23 is an auxiliary vibrating membrane.
  • the auxiliary vibrating member 23 includes two and is respectively disposed on opposite sides of the voice coil 22.
  • the elastic conductive member 24 includes a fixed arm 241 fixed to the basin frame 1, a connecting arm 242 attached to the side of the diaphragm 21 close to the voice coil 22, and connecting the fixed arm 241 and the connecting arm 241
  • the elastic arm 243 of the arm 242 is shown in FIG. 6.
  • the elastic conductive member 24 is a flexible circuit board, of course, it is not limited to this, and a conductive circuit can also be provided on an elastic board.
  • the fixed arm 241 is located between the basin frame 1 and the diaphragm 21. Specifically, in this embodiment, the fixing portion 213 of the diaphragm 21 is fixed to the frame 1.
  • the basin frame 1 is embedded with pads, and the fixed arm 241 is electrically connected through the pads for introducing external power signals.
  • the connecting arm 242 is electrically connected to the voice coil 22. More preferably, the orthographic projection of the connecting arm 242 to the voice coil 22 along the vibration direction of the diaphragm 21 is at least partially located on the inner side of the voice coil 22, and the connecting arm 242 is located on the inner side of the voice coil 22. This part is electrically connected to the voice coil 22, so that the lead wire of the voice coil 22 and the connecting arm 242 do not occupy the space of the magnetic circuit system 3 when they are welded.
  • the connecting arm 242 is attached to the side of the vibrating portion 211 close to the voice coil 22. More preferably, the connecting arm 242 is attached to the dome 2113.
  • the elastic arm 243 is spaced apart from the diaphragm 21 and suspended below the diaphragm 21. Specifically, the elastic arm is spaced apart from the folding ring portion 212, and the orthographic projection of the elastic arm to the folding ring portion 212 along the vibration direction of the diaphragm 21 completely falls within the range of the folding ring portion 212, so that The elastic arm 243 can be designed by making full use of the space under the folding ring portion 212, which has a high degree of design freedom and improves the reliability of the elastic arm 243.
  • the elastic conductive member 24 includes two, and the two elastic conductive members 24 are spaced apart from each other and arranged symmetrically.
  • the fixed arms 241 include two, and the two fixed arms 241 are respectively fixed to the two short axis sides of the basin frame 1.
  • the elastic arm 243 includes two first elastic arms 2431 and a second elastic arm 2432 that simultaneously connects the two first elastic arms 2431 to the fixed arm 241.
  • the two fixed arms 241 respectively extend along the two short axis sides of the basin frame 1, and the first elastic arm 2431 is bent by one end of the fixed arm 241 and runs along one of the lengths of the basin frame 1.
  • the shaft edge extends to be connected with the second elastic arm 2432.
  • the elastic arm 243 is suspended, the first elastic arm 2431 and the second elastic arm 2432 are spaced apart from the basin frame 1.
  • the elastic conductive member 24 is arranged between the diaphragm 21 and the frame 1, which eliminates the restriction on the voice coil 22 when the elastic conductive member 24 is directly connected to the lower end of the voice coil 22, and at the same time eliminates the impact on the magnetic circuit. Due to the limitation of the design of the system 3, the magnetic circuit system does not need to give way to the elastic conductive member 24; moreover, the voice coil 22 is electrically connected to the elastic conductive member 24 by its end close to the diaphragm 21, so that the elastic arm 243 can make full use of the diaphragm 21. Designed in the direction of the space, the elastic arm 243 has more freedom and better reliability.
  • the elastic conductive member 24 includes two, and the two elastic conductive members 24 are spaced apart from each other and arranged symmetrically to improve stability and reliability.
  • the frame 25 connects the auxiliary vibrating member 23 with the diaphragm 21. More preferably, the frame 25 connects the auxiliary vibrating member 23 with the voice coil 22. Further, the frame 25 connects the auxiliary vibrating member 23 with the voice coil 22. The voice coil 22 is connected to the diaphragm 21.
  • the frame 25 includes a frame connecting portion 251 arranged around the outer side of the voice coil 22 and spaced opposite to the voice coil 22 and jointly enclosing the accommodating space 10, and located inside the frame connecting portion 251 and spaced apart from each other.
  • the provided skeleton supporting portion 252 and the skeleton extending portion 253 connecting the skeleton supporting portion 252 and the skeleton connecting portion 251 are as shown in FIG. 7.
  • the skeleton connecting portion 251 includes two and is respectively located on opposite sides of the short axis of the voice coil 22.
  • the frame connecting portion 251 is provided with a top wall 2511 opposite to the diaphragm 21, a bottom wall 2512 opposite to the auxiliary vibrating member 23, and a side wall 2513 connecting the top wall 2511 and the bottom wall 2512.
  • the top wall 2511 is connected to the diaphragm 21. Specifically, the top wall 2511 is connected to the main body 2111 of the vibrating part of the diaphragm 21; the bottom wall 2512 is connected to the auxiliary vibrating member 23; the side wall 2513 is connected to The voice coils 22 are arranged opposite to each other and jointly enclose the receiving space 10, and the receiving space 10 is used for designing and receiving a part of the magnetic circuit system 3.
  • the frame support 252 is located between the diaphragm 21 and the voice coil 22 and hangs the voice coil 22 below the diaphragm 21 to connect the top of the voice coil 22 with the diaphragm 21 Specifically, the frame support portion 252 is connected to the dome 2113 of the diaphragm 21.
  • the skeleton support portion 252 has a ring structure.
  • the frame support portion 252 is provided with a break 2521, and the connecting arm 242 of the elastic conductive member 24 extends from the voice coil 22 to the inner side of the voice coil 22 through the break 2521.
  • the frame support portion 252 has a ring shape, including a continuous ring shape, that is, a whole structure; it also includes a discontinuous ring shape, that is, the frame support portion 252 may be a multi-stage interval and A ring formed together.
  • the frame extension portion 253 connects the end of the frame support portion 251 close to the diaphragm 21 with the top wall 2511 of the frame connection portion 251.
  • the skeleton extension 253 includes four and is located at the four rounded corners of the voice coil 22 respectively.
  • the above-mentioned structural arrangement of the frame 25 not only realizes the connection of the auxiliary elastic member 23 with the diaphragm 21, and supports the diaphragm 21 to provide greater elasticity and improve the acoustic performance; but also realizes the connection of the auxiliary elastic member 23 with the top end of the voice coil 22 , The vibration stability is improved, and at the same time, the voice coil 22 is connected with the diaphragm 21 to realize the voice coil 22 driving the diaphragm 21 to vibrate.
  • the elastic conductive member 24 and the auxiliary vibrating member 23 are designed separately, so that the auxiliary vibrating member 23 can be independently designed. After being connected to the voice coil 22 through the skeleton 25, the voice coil 22 can be better restrained from swinging. At the same time, the elastic conductive member 24 is arranged between the diaphragm 21 and the frame 1. The elastic arm 243 of the elastic conductive member 24 is spaced from the diaphragm 21 and suspended below the diaphragm 21.
  • This structure The restriction on the voice coil 22 when the auxiliary vibrating member 23 and the elastic conductive member 24 are directly connected to the lower end of the voice coil 2 is eliminated, and the height of the voice coil 22 is no longer limited by the auxiliary vibrating member 23 and the elastic conductive member 24, and the sound generating device 100
  • the overall height can be designed to be thinner and lighter.
  • the limitation on the design of the magnetic circuit system 3 is eliminated.
  • the auxiliary vibrating member 23 is not directly glued to the voice coil 22, and the elastic conductive member is not directly connected to the lower end of the voice coil 22, so that the magnetic circuit system 3 does not need to give way to the auxiliary vibrating member 23.
  • the elastic conductive member 24, the magnetic circuit system 3 can realize the maximum ring-shaped magnetic circuit structure, which effectively improves the acoustic performance of the sound emitting device.
  • the magnetic circuit system 3 includes a magnetic yoke 31, a main magnetic steel 32 fixed to the magnetic yoke 31, and a secondary magnetic steel 33 spaced around the outer side of the main magnetic steel 32, and the secondary magnetic steel 33 is ring-shaped and The magnetic gap 30 is enclosed with the main magnetic steel 32.
  • the auxiliary magnet 33 is located on the side of the auxiliary vibrating member 23 close to the main magnet 32, and the magnetic circuit system 3 is fixed to the basin frame 1 through the auxiliary magnet 33 to realize the magnetic circuit system 3 and the basin.
  • the secondary magnet 33 is at least partially located in the receiving space 30. The maximization of the magnetic circuit system 3 is realized, the driving force is effectively improved, and the sound performance is improved.
  • the magnetic circuit system 3 may also include a splint 34 attached to the secondary magnet 33 and a pole plate 35 attached to the main magnet 32. Both the splint 34 and the pole plate 35 can be used for magnetic conduction to improve Driving force. More preferably, a side of the electrode plate 35 close to the diaphragm 21 is provided with a relief groove 351 corresponding to the connecting arm 242. The relief groove 351 gives way to the connecting arm 242 to provide a vibration space when the elastic conductive member 24 vibrates with the diaphragm 21.
  • the voice coil and the auxiliary vibrating part are spaced apart, and the auxiliary vibrating part is connected with the diaphragm by setting a skeleton, so as to realize the enhancement of the vibration performance of the diaphragm.
  • Purpose, and the auxiliary vibrating part realizes independent design, and the vibration of the voice coil can be better suppressed after the frame is connected to the voice coil; at the same time, the elastic conductive part is arranged between the diaphragm and the basin frame, including the one fixed to the basin frame.
  • the arm and the diaphragm are arranged at intervals and suspended below the diaphragm.
  • the auxiliary vibrating parts are not directly glued to the voice coil, and the elastic conductive parts are not directly connected to the voice coil.
  • the lower end is connected, the magnetic circuit system does not need to give way to auxiliary vibrating parts and elastic conductive parts.
  • the magnetic circuit system can maximize the ring-shaped magnetic circuit structure, which effectively improves the acoustic performance of the sound-producing device; moreover, the voice coil is close to the diaphragm.
  • One end is electrically connected with the elastic conductive member, so that the elastic arm can make full use of the space under the diaphragm for design, and the elastic arm has greater freedom and better reliability.

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

Abstract

本发明公开一种发声器件，其包括盆架和分别固定于所述盆架的振动***及具有磁间隙的磁路***；所述振动***包括固定于所述盆架的振膜、插设于所述磁间隙并驱动所述振膜振动发声的音圈、固定于所述盆架并与所述振膜相对间隔设置的辅助振动件、弹性导电件以及将所述辅助振动件与所述振膜连接的骨架；所述弹性导电件包括固定于所述盆架的固定臂、贴合于所述振膜靠近所述音圈一侧的连接臂以及连接所述固定臂和所述连接臂的弹臂，所述连接臂与所述音圈电连接，所述弹臂与所述振膜间隔设置并悬置于所述振膜下方。与相关技术相比，本发明的发声器件稳定性好且声学性能好。

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。目前，手机的功能极其多样，其中之一便是高品质的音乐功能，因此，用于播放声音的发声器件被大量应用到现在的智能移动设备之中。
相关技术的所述发声器件包括盆架和分别固定于所述盆架的振动***及具有磁间隙的磁路***；所述振动***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辅助振动件，所述辅助振动件包括弹片和贴合于所述弹片的辅助振动件。所述磁路***包括磁轭、固定于所述磁轭的主磁钢和环设于所述主磁钢并与所述主磁钢间隔形成所述磁间隙的副磁钢。
 技术问题
然而，相关技术的所述发声器件中，所述振膜与所述辅助振动件分别固定于所述音圈的相对两端，虽然所述辅助振动件可有效增加振膜的振动性能，但其弹片与辅助振动件贴合设计使得二者相互影响制约，不能有效的利用空间；而且，弹片需要延伸至磁间隙内与音圈电连接，使得副磁钢需要形成让位空间，造成磁路***体积减小受限，从而使得发声器件的声学性能改善受限。
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
本发明的目的是克服上述技术问题，提供一种可靠性好且声学性能好的发声器件。
为了实现上述目的，本发明提供一种发声器件，其包括盆架和分别固定于所述盆架的振动***及具有磁间隙的磁路***；所述振动***包括固定于所述盆架的振膜、插设于所述磁间隙并驱动所述振膜振动发声的音圈、固定于所述盆架并与所述振膜相对间隔设置的辅助振动件、弹性导电件以及将所述辅助振动件与所述振膜连接的骨架；所述弹性导电件包括固定于所述盆架的固定臂、贴合于所述振膜靠近所述音圈一侧的连接臂以及连接所述固定臂和所述连接臂的弹臂，所述连接臂与所述音圈电连接，所述弹臂与所述振膜间隔设置并悬置于所述振膜下方。
优选的，所述弹性导电件包括两个，两个所述弹性导电件相互间隔且呈对称设置。
优选的，所述盆架呈矩形，同一所述弹性导电件中，所述固定臂包括两个，两个所述固定臂分别固定于所述盆架的两个短轴边；所述弹臂包括两个第一弹臂和将两个所述第一弹臂同时连接于所述固定臂的第二弹臂，所述第一弹臂由所述固定臂的一端弯折并沿所述盆架的其中一长轴边延伸至与所述第二弹臂连接。
优选的，所述连接臂沿所述振膜的振动方向向所述音圈的正投影至少部分位于所述音圈的内侧，且所述连接臂位于所述音圈内侧的该部分与所述音圈电连接。
优选的，所述骨架包括环绕设于所述音圈外侧且与所述音圈间隔相对设置并共同围成收容空间的骨架连接部，所述骨架连接部设有与所述振膜相对的顶壁、与所述辅助振动件相对的底壁以及连接所述顶壁与所述底壁的侧壁，所述顶壁与所述振膜连接，所述底壁与所述辅助振动件连接，所述侧壁与所述音圈间隔相对设置。
优选的，所述骨架还包括位于所述骨架连接部内侧且间隔设置的骨架支撑部以及连接所述骨架支撑部与所述骨架连接部的骨架延伸部；所述骨架支撑部位于所述振膜与所述音圈之间并将所述音圈悬挂于所述振膜下方，所述骨架延伸部将所述骨架支撑部靠近所述振膜的一端与所述骨架连接部的所述顶壁连接；所述骨架支撑部开设有断口，所述连接臂经所述断口从所述音圈上方延伸至所述音圈内侧。
优选的，所述振膜包括振动部、由所述振动部的周缘弯折延伸的折环部以及由所述折环部远离所述振动部的一侧向外弯折延伸的固定部，所述固定部固定于所述盆架；所述折环部呈向远离所述磁路***方向凹陷的弧形结构，所述弹臂与所述折环部间隔设置且沿所述振膜的振动方向向所述折环部的正投影完全落在所述折环部范围内；所述连接臂贴合于所述振动部靠近所述音圈的一侧。
优选的，所述振动部包括振动部主体、沿所述振动方向贯穿所述振动部主体的通口以及盖设于所述振动部主体并完全覆盖所述通口的球顶，所述连接臂贴合于所述球顶；所述骨架连接部的所述顶壁与所述振动部主体连接。
优选的，所述音圈呈带圆角的矩形结构，所述骨架延伸部包括四个且分别位于所述音圈的四个圆角的位置；所述骨架连接部包括两个且分别位于所述音圈短轴的相对两侧。
优选的，所述磁路***包括磁轭、固定于所述磁轭的主磁钢以及贴合于所述主磁钢的极板，所述极板靠近所述振膜的一侧设有与所述连接臂相对应的让位槽。
 有益效果
与现有技术相比，本发明的发声器件，将所述音圈与所述辅助振动件间隔设置，通过设置骨架将所述辅助振动件与所述振膜连接，实现加强振膜振动性能的目的，而辅助振动件实现独立设计，通过骨架与音圈连接后可更好的抑制音圈摇摆；同时，将弹性导电件设置于振膜与盆架之间，包括固定于所述盆架的固定臂、贴合于所述振膜靠近所述音圈一侧的连接臂以及连接所述固定臂和所述连接臂的弹臂，所述连接臂与所述音圈电连接，所述弹臂与所述振膜间隔设置并悬置于所述振膜下方，该结构消除了所述辅助振动件及弹性导电件与音圈下端直接连接时对音圈的限制，音圈高度不再受限于辅助振动件及弹性导电件，发声器件整体高度可以设计的更加轻薄；同时消除了对磁路***的设计的限制，辅助振动件不直接与音圈胶合，弹性导电件不直接与音圈下端连接，磁路***无需让位辅助振动件和弹性导电件，磁路***可实现最大化环形磁路结构，有效提高了所述发声器件的声学性能；而且，音圈由其靠近振膜的一端与弹性导电件电连接，使得弹臂可充分利用振膜下方向的空间进行设计，弹臂自由度更大，可靠性更好。
 附图说明
为了更清楚地说明本发明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发明的一些实施例，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为本发明发声器件的立体结构示意图；
图2为本发明发声器件的部分立体结构分解示意图；
图3为沿图1中A-A线的剖示图；
图4为图3中B所示部分放大图；
图5为沿图1中C-C线的剖示图；
图6为图5中D所示部分放大图；
图7为本发明发声器件的弹性导电件的立体结构示意图；
图8为本发明发声器件的骨架的立体结构示意图；
图9为本发明发声器件的骨架、弹性导电件、辅助振动件及音圈的装配结构示意图；
图10为本发明发声器件的骨架、弹性导电件、辅助振动件、音圈、主磁钢及副磁钢的装配结构示意图。
 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，所描述的实施例仅是本发明的一部分实施例，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它实施例，都属于本发明保护的范围。
请同时参阅图1-2所示，其中，图1为本发明发声器件的立体结构示意图；图2为本发明发声器件的部分立体结构分解示意图。本发明提供的一种发声器件100，其包括盆架1、振动***2以及磁路***3。
所述盆架1用于支撑所述振动***2和所述磁路***3，本实施方式中，所述盆架1呈矩形。所述磁路***3具有磁间隙30，所述磁路***3用于驱动振动***2振动发声。
所述振动***2包括固定于所述盆架1的振膜21、插设于所述磁间隙30并驱动所述振膜振动发声的音圈22、固定于所述盆架1并与所述振膜21相对间隔设置的辅助振动件23、位于所述音圈22靠近所述振膜21一端的弹性导电件24以及将所述辅助振动件23与所述振膜21连接的骨架25。具体的，所述辅助振动件23一端固定于所述盆架1，其另一端支撑固定于所述骨架25，所述弹性导电件24位于所述盆架1与所述振膜21之间。
请同时结合参图3-10所示，其中，图3为沿图1中A-A线的剖示图；图4为图3中B所示部分放大图；图5为沿图1中C-C线的剖示图；图6为图5中D所示部分放大图；图7为本发明发声器件的弹性导电件的立体结构示意图；图8为本发明发声器件的骨架的立体结构示意图；图9为本发明发声器件的骨架、弹性导电件、辅助振动件及音圈的装配结构示意图；图10为本发明发声器件的骨架、弹性导电件、辅助振动件、音圈、主磁钢及副磁钢的装配结构示意图。
具体的，所述振膜21包括振动部211、由所述振动部211的周缘弯折延伸的折环部212以及由所述折环部212远离所述振动部211的一侧向外弯折延伸的固定部213。
所述固定部213固定于所述盆架1，所述折环部212呈向远离所述磁路***3方向凹陷的弧形结构。
更优的，所述振动部211包括振动部主体2111、沿所述振膜21的振动方向贯穿所述振动部主体2111的通口2112以及盖设于所述振动部主体2111并完全覆盖所述通口2112的球顶2113。
本实施方式中，所述音圈22呈带圆角的矩形结构。
所述辅助振动件23为辅助振膜，本实施方式中，所述辅助振动件23包括两个且分别设置于所述音圈22的相对两侧。
所述弹性导电件24包括固定于所述盆架1的固定臂241、贴合于所述振膜21靠近所述音圈22一侧的连接臂242以及连接所述固定臂241和所述连接臂242的弹臂243，如图6所示。本实施方式中，所述弹性导电件24为柔性电路板，当然不限于此，也可以为弹性板上设置导电线路。
所述固定臂241位于所述盆架1与所述振膜21之间。具体的，本实施方式中，所述振膜21的固定部213固定于盆架1上。盆架1内嵌设焊盘，固定臂241通过焊盘电连接，用于引入外部电源信号。
所述连接臂242与所述音圈22电连接。更优的，所述连接臂242沿所述振膜21的振动方向向所述音圈22的正投影至少部分位于所述音圈22的内侧，且连接臂242位于所述音圈22内侧的该部分与所述音圈22电连接，从而使得音圈22的引线与连接臂242形成焊接时不占用磁路***3的空间。具体的，本实施方式中，所述连接臂242贴合于所述振动部211靠近所述音圈22的一侧。更优的，所述连接臂242贴合于球顶2113。
所述弹臂243与所述振膜21间隔设置并悬置于所述振膜21下方。具体的，所述弹臂与所述折环部212间隔设置，且沿所述振膜21的振动方向向所述折环部212的正投影完全落在所述折环部212范围内，从而可充分利用所述折环部212下方的空间设计弹臂243，设计自由度高，提高弹臂243的可靠性。
本实施方式中，所述弹性导电件24包括两个，两个所述弹性导电件24相互间隔 且对称设置。
具体的，同一所述弹性导电件24中，所述固定臂241包括两个，两个所述固定臂241分别固定于所述盆架1的两个短轴边。
所述弹臂243包括两个第一弹臂2431和将两个所述第一弹臂2431同时连接于所述固定臂241的第二弹臂2432。两个所述固定臂241分别沿所述盆架1的两个短轴边延伸，所述第一弹臂2431由所述固定臂241的一端弯折并沿所述盆架1的其中一长轴边延伸至与第二弹臂2432连接。当然，因弹臂243为悬空设置，故第一弹臂2431和第二弹臂2432均与盆架1间隔。
本实施方式中，将弹性导电件24设置于振膜21与盆架1之间，消除了弹性导电件24与音圈22的下端直接连接时对音圈22的限制，同时消除了对磁路***3的设计的限制，磁路***无需让位弹性导电件24；而且，音圈22由其靠近振膜21的一端与弹性导电件24电连接，使得弹臂243可充分利用振膜21下方向的空间进行设计，弹臂243自由度更大，可靠性更好。
本实施方式中，所述弹性导电件24包括两个，两个所述弹性导电件24相互间隔且呈对称设置，以提高稳定性和可靠性。
所述骨架25将所述辅助振动件23与所述振膜21连接，更优的，所述骨架25将所述辅助振动件23与所述音圈22连接，进一步，所述骨架25将所述音圈22与所述振膜21连接。
具体的，所述骨架25包括环绕设于所述音圈22外侧且与所述音圈22间隔相对设置并共同围成收容空间10的骨架连接部251、位于所述骨架连接部251内侧且间隔设置的骨架支撑部252以及连接所述骨架支撑部252与所述骨架连接部251的骨架延伸部253，如图7所示。
本实施方式中，所述骨架连接部251包括两个且分别位于所述音圈22短轴的相对两侧。
所述骨架连接部251设有与所述振膜21相对的顶壁2511、与所述辅助振动件23相对的底壁2512以及连接所述顶壁2511与所述底壁2512的侧壁2513。
所述顶壁2511与所述振膜21连接，具体的，顶壁2511连接于振膜21的振动部主体2111；所述底壁2512与所述辅助振动件23连接；所述侧壁2513与所述音圈22间隔相对设置并共同围成所述收容空间10，所述收容空间10用于设计收容磁路***3的一部分。
所述骨架支撑252部位于所述振膜21与所述音圈22之间并将所述音圈22悬挂于所述振膜21下方，实现将音圈22的顶部与所述振膜21连接，具体的，所述骨架支撑部252连接于所述振膜21的球顶2113。
本实施方式中，所述骨架支撑部252呈环状结构。
更优的，所述骨架支撑部252开设有断口2521，所述弹性导电件24的连接臂242经所述断口2521从所述音圈22延伸至所述音圈22内侧。
需要说明的是，本实施方式中，所述骨架支撑部252呈环状包括呈连续的环状，即为一整体结构；也包括不连续的环状，即骨架支撑部252可为多段间隔并共同围成的环状。
所述骨架延伸部253将所述骨架支撑部251靠近所述振膜21的一端与所述骨架连接部251的所述顶壁2511连接。
具体的，所述骨架延伸部253包括四个且分别位于所述音圈22的四个圆角的位置。
上述骨架25的结构设置，不仅实现了将辅助弹性件23与振膜21连接，支撑振膜21提供更大弹力，提高声学性能；而且还实现了将辅助弹性件23与音圈22的顶端连接，提高振动稳定性，同时也实现了将音圈22与振膜21连接实现音圈22驱动振膜21振动。
本发明的发声器件中，弹性导电件24与辅助振动件23分开设计，使得辅助振动件23实现独立设计，通过骨架25与音圈22连接后可更好的抑制音圈22摇摆。同时，将弹性导电件24设置于振膜21与盆架1之间，所述弹性导电件24的弹臂243与所述振膜21间隔设置并悬置于所述振膜21下方，该结构消除了所述辅助振动件23及弹性导电件24与音圈2下端直接连接时对音圈22的限制，音圈22高度不再受限于辅助振动件23及弹性导电件24，发声器件100整体高度可以设计的更加轻薄。同时消除了对磁路***3的设计的限制，辅助振动件23不直接与音圈22胶合，弹性导电件不直接与音圈22下端连接，则使得磁路***3无需让位辅助振动件23和弹性导电件24，磁路***3可实现最大化环形磁路结构，有效提高了所述发声器件的声学性能。
所述磁路***3包括磁轭31、固定于所述磁轭31的主磁钢32以及间隔环绕于所述主磁钢32外侧的副磁钢33，所述副磁钢33呈环状且与所述主磁钢32围成所述磁间隙30。
所述副磁钢33位于所述辅助振动件23靠近所述主磁钢32的一侧，所述磁路***3通过副磁钢33与所述盆架1固定以实现磁路***3与盆架1的固定连接，所述副磁钢33至少部分位于所述收容空间30内。实现了磁路***3的最大化，有效提高了驱动力，改善发声性能。
进一步的，磁路***3还可以包括贴合于所述副磁钢33的夹板34和贴合于所述主磁钢32的极板35，夹板34和极板35均可用于导磁，提高驱动力。更优的，所述极板35靠近所述振膜21的一侧设有与所述连接臂242相对应的让位槽351。所述让位槽351在所述弹性导电件24随振膜21振动时为所述连接臂242让位以提供振动空间。
与现有技术相比，本发明的发声器件，将所述音圈与所述辅助振动件间隔设置，通过设置骨架将所述辅助振动件与所述振膜连接，实现加强振膜振动性能的目的，而辅助振动件实现独立设计，通过骨架与音圈连接后可更好的抑制音圈摇摆；同时，将弹性导电件设置于振膜与盆架之间，包括固定于所述盆架的固定臂、贴合于所述振膜靠近所述音圈一侧的连接臂以及连接所述固定臂和所述连接臂的弹臂，所述连接臂与所述音圈电连接，所述弹臂与所述振膜间隔设置并悬置于所述振膜下方，该结构消除了所述辅助振动件及弹性导电件与音圈下端直接连接时对音圈的限制，音圈高度不再受限于辅助振动件及弹性导电件，发声器件整体高度可以设计的更加轻薄；同时消除了对磁路***的设计的限制，辅助振动件不直接与音圈胶合，弹性导电件不直接与音圈下端连接，磁路***无需让位辅助振动件和弹性导电件，磁路***可实现最大化环形磁路结构，有效提高了所述发声器件的声学性能；而且，音圈由其靠近振膜的一端与弹性导电件电连接，使得弹臂可充分利用振膜下方向的空间进行设计，弹臂自由度更大，可靠性更好。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种发声器件，其包括盆架和分别固定于所述盆架的振动***及具有磁间隙的磁路***；所述振动***包括固定于所述盆架的振膜、插设于所述磁间隙并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间隔设置的辅助振动件，其特征在于，所述振动***还包括：
    弹性导电件，所述弹性导电件包括固定于所述盆架的固定臂、贴合于所述振膜靠近所述音圈一侧的连接臂以及连接所述固定臂和所述连接臂的弹臂，所述连接臂与所述音圈电连接，所述弹臂与所述振膜间隔设置并悬置于所述振膜下方；以及，
    骨架，所述骨架将所述辅助振动件与所述振膜连接。
  2. 根据权利要求1所述的发声器件，其特征在于，所述弹性导电件包括两个，两个所述弹性导电件相互间隔且呈对称设置。
  3. 根据权利要求2所述的发声器件，其特征在于，所述盆架呈矩形，同一所述弹性导电件中，所述固定臂包括两个，两个所述固定臂分别固定于所述盆架的两个短轴边；所述弹臂包括两个第一弹臂和将两个所述第一弹臂同时连接于所述固定臂的第二弹臂，所述第一弹臂由所述固定臂的一端弯折并沿所述盆架的其中一长轴边延伸至与所述第二弹臂连接。
  4. 根据权利要求3所述的发声器件，其特征在于，所述连接臂沿所述振膜的振动方向向所述音圈的正投影至少部分位于所述音圈的内侧，且所述连接臂位于所述音圈内侧的该部分与所述音圈电连接。
  5. 根据权利要求1所述的发声器件，其特征在于，所述骨架包括环绕设于所述音圈外侧且与所述音圈间隔相对设置并共同围成收容空间的骨架连接部，所述骨架连接部设有与所述振膜相对的顶壁、与所述辅助振动件相对的底壁以及连接所述顶壁与所述底壁的侧壁，所述顶壁与所述振膜连接，所述底壁与所述辅助振动件连接，所述侧壁与所述音圈间隔相对设置。
  6. 、根据权利要求5所述的发声器件，其特征在于，所述骨架还包括位于所述骨架连接部内侧且间隔设置的骨架支撑部以及连接所述骨架支撑部与所述骨架连接部的骨架延伸部；所述骨架支撑部位于所述振膜与所述音圈之间并将所述音圈悬挂于所述振膜下方，所述骨架延伸部将所述骨架支撑部靠近所述振膜的一端与所述骨架连接部的所述顶壁连接；所述骨架支撑部开设有断口，所述连接臂经所述断口从所述音圈上方延伸至所述音圈内侧。
  7. 根据权利要求6所述的发声器件，其特征在于，所述振膜包括振动部、由所述振动部的周缘弯折延伸的折环部以及由所述折环部远离所述振动部的一侧向外弯折延伸的固定部，所述固定部固定于所述盆架；所述折环部呈向远离所述磁路***方向凹陷的弧形结构，所述弹臂与所述折环部间隔设置且沿所述振膜的振动方向向所述折环部的正投影完全落在所述折环部范围内；所述连接臂贴合于所述振动部靠近所述音圈的一侧。
  8. 根据权利要求7所述的发声器件，其特征在于，所述振动部包括振动部主体、沿所述振动方向贯穿所述振动部主体的通口以及盖设于所述振动部主体并完全覆盖所述通口的球顶，所述连接臂贴合于所述球顶；所述骨架连接部的所述顶壁与所述振动部主体连接。
  9. 根据权利要求6所述的发声器件，其特征在于，所述音圈呈带圆角的矩形结构，所述骨架延伸部包括四个且分别位于所述音圈的四个圆角的位置；所述骨架连接部包括两个且分别位于所述音圈短轴的相对两侧。
  10. 根据权利要求5-9任意一项所述的发声器件，其特征在于，所述磁路***包括磁轭、固定于所述磁轭的主磁钢以及贴合于所述主磁钢的极板，所述极板靠近所述振膜的一侧设有与所述连接臂相对应的让位槽。
PCT/CN2019/125075 2019-12-13 2019-12-13 发声器件 WO2021114211A1 (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113794973A (zh) * 2021-09-29 2021-12-14 瑞声光电科技(常州)有限公司 一种多功能发声器件
CN113825074A (zh) * 2021-07-28 2021-12-21 深圳市长盈精密技术股份有限公司 动铁单元
CN114051198A (zh) * 2021-12-10 2022-02-15 东莞市真思电子有限公司 一种扬声器发声装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170366900A1 (en) * 2016-06-15 2017-12-21 AAC Technologies Pte. Ltd. Miniature sound generator
US20180220238A1 (en) * 2015-08-25 2018-08-02 Goertek Inc. Vibration sound-generating device
CN109348373A (zh) * 2018-09-30 2019-02-15 瑞声科技(新加坡)有限公司 发声器件
CN208798207U (zh) * 2018-08-17 2019-04-26 瑞声科技(新加坡)有限公司 多功能扬声器
CN208924476U (zh) * 2018-09-30 2019-05-31 瑞声科技(新加坡)有限公司 发声器件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180220238A1 (en) * 2015-08-25 2018-08-02 Goertek Inc. Vibration sound-generating device
US20170366900A1 (en) * 2016-06-15 2017-12-21 AAC Technologies Pte. Ltd. Miniature sound generator
CN208798207U (zh) * 2018-08-17 2019-04-26 瑞声科技(新加坡)有限公司 多功能扬声器
CN109348373A (zh) * 2018-09-30 2019-02-15 瑞声科技(新加坡)有限公司 发声器件
CN208924476U (zh) * 2018-09-30 2019-05-31 瑞声科技(新加坡)有限公司 发声器件

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113825074A (zh) * 2021-07-28 2021-12-21 深圳市长盈精密技术股份有限公司 动铁单元
CN113794973A (zh) * 2021-09-29 2021-12-14 瑞声光电科技(常州)有限公司 一种多功能发声器件
CN114051198A (zh) * 2021-12-10 2022-02-15 东莞市真思电子有限公司 一种扬声器发声装置

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