WO2024168643A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2024168643A1
WO2024168643A1 PCT/CN2023/076314 CN2023076314W WO2024168643A1 WO 2024168643 A1 WO2024168643 A1 WO 2024168643A1 CN 2023076314 W CN2023076314 W CN 2023076314W WO 2024168643 A1 WO2024168643 A1 WO 2024168643A1
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WO
WIPO (PCT)
Prior art keywords
boss
fixed
sound
diaphragm
generating device
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/CN2023/076314
Other languages
English (en)
French (fr)
Inventor
高忠峰
喻经纬
倪四圆
李其波
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 Microtech Changzhou Co Ltd
Original Assignee
AAC Microtech Changzhou Co 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 Microtech Changzhou Co Ltd filed Critical AAC Microtech Changzhou Co Ltd
Priority to PCT/CN2023/076314 priority Critical patent/WO2024168643A1/zh
Priority to US18/325,087 priority patent/US12587792B2/en
Publication of WO2024168643A1 publication Critical patent/WO2024168643A1/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
    • 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
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; 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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; 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
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to the technical field of electroacoustic conversion, in particular to a sound-generating device for a portable mobile terminal.
  • Common sound-generating devices include a basin frame and a vibration system and a magnetic circuit system fixed to the basin frame; the vibration system includes a diaphragm for vibrating and generating sound and a voice coil fixed to the diaphragm and driving the diaphragm to vibrate and generate sound; the deformation of the diaphragm during vibration can easily reduce the bonding strength between the voice coil and the diaphragm, and reduce the vibration stability of the voice coil. Therefore, the voice coil is usually supported in the magnetic gap of the magnetic circuit system by a voice coil frame. However, the provision of a voice coil frame will increase the cost of the sound-generating device.
  • the vibration stability of the voice coil must be ensured while removing the voice coil frame.
  • a protrusion is provided on the dome of the diaphragm to fix it to the voice coil, thereby playing a supporting and fixing role; however, when the height of the protrusion on the dome is high, the dome will have a high risk of rupture during the deformation and stretching process, affecting the reliability of the sound-generating device.
  • the purpose of the utility model is to provide a sound-generating device with low cost and high reliability.
  • the utility model proposes a sound-generating device, which includes a basin frame, a magnetic circuit system with a magnetic gap and a vibration system fixed to the basin frame, the magnetic circuit system includes a yoke fixed to the basin frame and a magnetic steel fixed to the yoke, the vibration system includes a diaphragm fixed to the basin frame and a voice coil fixed to the diaphragm and inserted in the magnetic gap, the diaphragm includes a rectangular spherical top located in the middle position and a folding ring surrounding the spherical top and fixed to the basin frame, the spherical top includes a first boss and a second boss formed concave toward the voice coil, the first boss extends along the long axis direction, and the second boss extends along the short axis direction, the voice coil is fixed to the first boss and the second boss, the spherical top also includes a third boss arranged at a corner position, one end of the third boss
  • the third boss is arc-shaped.
  • one third boss is provided between adjacent first bosses and second bosses.
  • the recessed depth of the third boss is smaller than the recessed depths of the first boss and the second boss.
  • the first boss, the second boss and the third boss are connected and arranged to form a rectangle.
  • the magnetic steel includes a main magnetic steel located in the middle position and a secondary magnetic steel arranged on the periphery of the main magnetic steel and spaced from the main magnetic steel to form the magnetic gap.
  • the magnetic circuit system further includes a main pole core fixed to the main magnetic steel and a secondary pole core fixed to the secondary magnetic steel on a side facing the diaphragm, and the secondary pole core is fixed to the basin frame to fix the magnetic circuit system to the basin frame.
  • the vibration system also includes a supporting diaphragm fixed to an end of the voice coil away from the diaphragm, and the supporting diaphragm is arranged between two adjacent auxiliary magnetic steels.
  • the vibration system also includes an FPC arranged on the side of the supporting diaphragm facing the diaphragm, and the FPC includes a first fixing part located on the outside of the voice coil, a second fixing part fixed to the basin frame, and an intermediate elastic part connecting the first fixing part and the second fixing part.
  • the first fixing portions of two of the FPCs are provided with solder pads electrically connected to the voice coil.
  • the sound-generating device provided by the utility model includes a basin frame, a magnetic circuit system with a magnetic gap, and a vibration system fixed to the basin frame
  • the vibration system includes a diaphragm fixed to the basin frame and a voice coil fixed to the diaphragm and inserted in the magnetic gap
  • the diaphragm includes a rectangular dome located in the middle position
  • the dome includes a first boss and a second boss formed by being recessed toward the voice coil, the first boss extends along the long axis direction, the second boss extends along the short axis direction
  • the voice coil is fixed to the first boss and the second boss
  • the dome also includes a third boss provided at a corner position, one end of the third boss is connected to the first boss, and the other end is connected to the second boss.
  • FIG1 is a perspective view of a sound-generating device in the present utility model
  • FIG2 is an exploded view of the sound-generating device of the present invention.
  • Fig. 3 is a cross-sectional view along line A-A in Fig. 1;
  • FIG4 is a top view of the sound-generating device of the present invention.
  • FIG. 5 is a partial structural perspective view of the sound-generating device in the present invention.
  • the utility model provides a sound-generating device 100 , which includes a basin frame 1 , a magnetic circuit system 2 having a magnetic gap 20 , and a vibration system 3 fixed to the basin frame 1 .
  • the magnetic circuit system 2 includes a yoke 21 fixed to the basin frame 1, a magnetic steel 22 fixed to the yoke 21, and a metal part 23 fixed under the yoke 21; specifically, the magnetic steel 22 includes a main magnetic steel 221 located in the middle position and a secondary magnetic steel 222 arranged on the periphery of the main magnetic steel 221 and spaced from the main magnetic steel 221 to form the magnetic gap 20; the magnetic circuit system 2 also includes a main pole core 24 fixed to the main magnetic steel 221 and a secondary pole core 25 fixed to the side of the secondary magnetic steel 222 facing the vibration system 3; the secondary pole core 25 is fixed to the basin frame 1 to fix the magnetic circuit system 2 to the basin frame 1. Further, there are four secondary magnetic steels 222, and the four secondary magnetic steels 222 are arranged at intervals and are arranged around the main magnetic steel 221.
  • the vibration system 3 includes a diaphragm 31 fixed to the basin frame 1, a voice coil 32 fixed to the diaphragm 31 and inserted in the magnetic gap 20, a supporting diaphragm 33 fixed to the end of the voice coil 32 away from the diaphragm 31, and an FPC 34 provided on the side of the supporting diaphragm 33 facing the diaphragm 31; the supporting diaphragm 33 is provided between two adjacent secondary magnetic steels 222.
  • the FPC 34 includes a first fixing portion 341 located outside the voice coil 32, a second fixing portion 342 fixed to the basin frame 1, and an intermediate elastic portion 343 connecting the first fixing portion 341 and the second fixing portion 342.
  • the first fixing portions 341 of the two FPCs 34 are provided with pads electrically connected to the voice coil 32, and the second fixing portions 342 are provided with pads electrically connected to the external circuit, so as to realize power supply to the voice coil 32.
  • the diaphragm 31 includes a rectangular dome 311 located in the middle position and a folded ring 312 surrounding the dome 311 and fixed to the basin frame 1,
  • the dome 311 includes a first boss 3111 and a second boss 3112 which are recessed toward the voice coil 32, the first boss 3111 extends along the long axis direction, the second boss 3112 extends along the short axis direction, the voice coil 32 is fixed to the first boss 3111 and the second boss 3112,
  • the dome 311 also includes a third boss 3113 arranged at a corner position, one end of the third boss 3113 is connected to the first boss 3111, and the other end is connected to the second boss 3112.
  • the first boss 3111 and the second boss 3112 support the voice coil 32 in the magnetic gap 20, acting as a skeleton, which not only reduces the cost of the sound-generating device 100, but also enhances the vibration stability of the voice coil; and by providing the third boss 3113 between the first boss 3111 and the second boss 3112, the risk of the dome 311 breaking during the vibration deformation process is effectively reduced, thereby improving the reliability of the sound-generating device 100.
  • the third boss 3113 is in an arc shape. There are four third bosses 3113, and one third boss 3113 is provided between each of the adjacent first bosses 3111 and the second bosses 3112. In this way, the first boss 3111, the second boss 3112 and the third boss 3113 are connected and arranged in a rectangular shape, thereby enhancing the strength of the ball top 311.
  • the depression depth of the third boss 3113 is smaller than the depression depths of the first boss 3111 and the second boss 3112 , so that the third boss 3113 can better reduce the risk of the spherical top 311 breaking.
  • the sound-generating device provided by the utility model includes a basin frame, a magnetic circuit system with a magnetic gap, and a vibration system fixed to the basin frame
  • the vibration system includes a diaphragm fixed to the basin frame and a voice coil fixed to the diaphragm and inserted in the magnetic gap
  • the diaphragm includes a rectangular dome located in the middle position
  • the dome includes a first boss and a second boss formed concave toward the voice coil
  • the first boss extends along the long axis direction
  • the second boss extends along the short axis direction
  • the voice coil is fixed to the first boss and the second boss
  • the dome also includes a third boss provided at a corner position, one end of the third boss is connected to the first boss, and the other end is connected to the second boss.

Landscapes

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

Abstract

本实用新型提供的发声器件包括盆架、磁路系统以及设于所述磁路系统两侧的第一振动系统和第二振动系统；所述磁路系统还包括第一内磁轭、主磁钢、固定于盆架的边磁钢以及固定于所述边磁钢的第一边磁轭；所述第一振动系统包括第一振膜、第一音圈以及第一电路板；所述第一电路板包括固定于所述盆架的第一固定部、与所述第一音圈焊接的第一焊接部以及第一弹性部，所述第一弹性部与所述第一边磁轭沿振动方向间隔设置，所述第一焊接部固定于所述第一边磁轭朝向所述第一振膜的表面。通过将所述第一焊接部固定于所述第一边磁轭，有效提升了所述发声器件的磁场性能。

Description

发声器件 技术领域
本实用新型涉及电声转换技术领域，尤其涉及一种用于便携式移动终端的发声器件。
 背景技术
随着便携式移动终端技术的发展，人们对便携式移动终端的音效要求越来越高，而手机中的发声器件便是实现这个高品质音效的必备条件之一。
 技术问题
常见的发声器件包括盆架和固定于盆架的振动系统和磁路系统；振动系统包括用于振动发声的振膜和固定于振膜并驱动振膜振动发声的音圈；振膜在振动过程中发生形变易降低音圈与振膜之间的结合强度，降低了音圈的振动稳定性，因此，通常通过音圈骨架将音圈支撑于磁路系统的磁间隙中。而设置音圈骨架会增加发声器件的成本，相关技术的发声器件中，为了降低成本，在去除的音圈骨架的同时又要保证音圈的振动稳定性，通过对振膜上球顶设置凸起与音圈固定，从而起到支撑和固定作用；然而，当球顶上的凸起的高度较高时，会使得球顶在形变拉伸过程中有很高的破裂风险，影响发声器件的可靠性。
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成本低且可靠性高的发声器件。
为了达到上述目的，本实用新型提出一种发声器件，其包括盆架、具有磁间隙的磁路系统和固定于所述盆架的振动系统，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的磁钢，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜并插设于所述磁间隙的音圈，所述振膜包括位于中间位置且呈矩形的球顶以及环绕所述球顶并固定于所述盆架的折环，所述球顶包括朝向所述音圈凹陷形成的第一凸台以及第二凸台，所述第一凸台沿长轴方向延伸，所述第二凸台沿短轴方向延伸，所述音圈固定于所述第一凸台和所述第二凸台，所述球顶还包括设于角部位置的第三凸台，所述第三凸台一端与所述第一凸台连接、另一端与所述第二凸台连接。
优选的，所述第三凸台呈圆弧形。
优选的，所述第三凸台为四个，相邻的所述第一凸台和所述第二凸台之间均设有一个所述第三凸台。
优选的，沿振动方向，所述第三凸台的凹陷深度小于所述第一凸台和所述第二凸台的凹陷深度。
优选的，所述第一凸台、所述第二凸台以及所述第三凸台连接围设呈矩形。
优选的，所述磁钢包括位于中间位置的主磁钢以及设于所述主磁钢周侧并与所述主磁钢间隔形成所述磁间隙的副磁钢。
优选的，所述磁路系统还包括固定于所述主磁钢的主极芯以及固定于所述副磁钢朝向所述振膜一侧的副极芯，所述副极芯与所述盆架固定以将所述磁路系统固定于所述盆架。
优选的，所述副磁钢为四个，四个所述副磁钢间隔设置，所述振动系统还包括固定于所述音圈远离所述振膜一端的支撑振膜，所述支撑振膜设于相邻两个所述副磁钢之间。
优选的，所述振动系统还包括设于所述支撑振膜朝向所述振膜一侧的FPC，所述FPC包括与所述位于所述音圈外侧的第一固定部、固定于所述盆架的第二固定部以及连接所述第一固定部和所述第二固定部的中间弹性部。
优选的，所述FPC为四个，两个所述FPC的所述第一固定部上设有与所述音圈电连接的焊盘。
 有益效果
与相关技术相比，本实用新型提供的发声器件包括盆架、具有磁间隙的磁路系统和固定于所述盆架的振动系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜并插设于所述磁间隙的音圈，所述振膜包括位于中间位置且呈矩形的球顶，所述球顶包括朝向所述音圈凹陷形成的第一凸台以及第二凸台，所述第一凸台沿长轴方向延伸，所述第二凸台沿短轴方向延伸，所述音圈固定于所述第一凸台和所述第二凸台，所述球顶还包括设于角部位置的第三凸台，所述第三凸台一端与所述第一凸台连接、另一端与所述第二凸台连接。通过设置连接第一凸台和第二凸台的第三凸台，有效降低了球顶破裂的风险，提升了发声器件的可靠性。
 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是本实用新型中发声器件的立体图；
图2是本实用新型中发声器件的爆炸图；
图3为图1中沿A-A线的剖视图；
图4时本实用新型中发声器件的俯视图；
图5为本实用新型中发声器件的部分结构立体图。
 本发明的最佳实施方式
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。
如图1-图5所示，本实用新型提供了一种发声器件100，其包括盆架1、具有磁间隙20的磁路系统2和固定于所述盆架1的振动系统3。
所述磁路系统2包括固定于所述盆架1的磁轭21、固定于所述磁轭21的磁钢22以及固定于所述磁轭21下方的金属件23；具体的，所述磁钢22包括位于中间位置的主磁钢221以及设于所述主磁钢221周侧并与所述主磁钢221间隔形成所述磁间隙20的副磁钢222；所述磁路系统2还包括固定于所述主磁钢221的主极芯24以及固定于所述副磁钢222朝向所述振动系统3的一侧的副极芯25；所述副极芯25与所述盆架1固定以将所述磁路系统2固定于所述盆架1。进一步的，所述副磁钢222为四个，四个所述副磁钢222间隔设置并分设于所述主磁钢221的四周。
所述振动系统3包括固定于所述盆架1的振膜31、固定于所述振膜31并插设于所述磁间隙20的音圈32、固定于所述音圈32远离所述振膜31一端的支撑振膜33以及设于所述支撑振膜33朝向所述振膜31一侧的FPC34；所述支撑振膜33设于相邻两个所述副磁钢222之间。其中，所述FPC34包括位于所述音圈32外侧的第一固定部341、固定于所述盆架1的第二固定部342以及连接所述第一固定部341和所述第二固定部342的中间弹性部343。可以理解的是，所述FPC34为四个，两个所述FPC34的所述第一固定部341上设有与所述音圈32电连接的焊盘、第二固定部342上设有与外部电路电连接的焊盘，以实现对所述音圈32的供电。
具体的，所述振膜31包括位于中间位置且呈矩形的球顶311以及环绕所述球顶311并固定于所述盆架1的折环312，所述球顶311包括朝向所述音圈32凹陷形成的第一凸台3111以及第二凸台3112，所述第一凸台3111沿长轴方向延伸，所述第二凸台3112沿短轴方向延伸，所述音圈32固定于所述第一凸台3111和所述第二凸台3112，所述球顶311还包括设于角部位置的第三凸台3113，所述第三凸台3113一端与所述第一凸台3111连接、另一端与所述第二凸台3112连接。所述第一凸台3111和所述第二凸台3112将所述音圈32支撑于所述磁间隙20内，起到骨架的作用，既降低了发声器件100的成本，有增强了音圈的振动稳定性；且通过在第一凸台3111和第二凸台3112之间设置第三凸台3113，有效降低了球顶311在振动形变过程中破裂的风险，提升了发声器件100的可靠性。
进一步的，所述第三凸台3113呈圆弧形。所述第三凸台3113为四个，相邻的所述第一凸台3111和所述第二凸台3112之间均设有一个所述第三凸台3113。如此，所述第一凸台3111、所述第二凸台3112以及所述第三凸台3113连接围设呈矩形，增强了所述球顶311的强度。
沿振动方向，所述第三凸台3113的凹陷深度小于所述第一凸台3111和所述第二凸台3112的凹陷深度，使得所述第三凸台3113能更好的起到降低所述球顶311破裂风险的作用。
与相关技术相比，本实用新型提供的发声器件包括盆架、具有磁间隙的磁路系统和固定于所述盆架的振动系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜并插设于所述磁间隙的音圈，所述振膜包括位于中间位置且呈矩形的球顶，所述球顶包括朝向所述音圈凹陷形成的第一凸台以及第二凸台，所述第一凸台沿长轴方向延伸，所述第二凸台沿短轴方向延伸，所述音圈固定于所述第一凸台和所述第二凸台，所述球顶还包括设于角部位置的第三凸台，所述第三凸台一端与所述第一凸台连接、另一端与所述第二凸台连接。通过设置连接第一凸台和第二凸台的第三凸台，有效降低了球顶破裂的风险，提升了发声器件的可靠性。 
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。
在此处键入序列表自由内容描述段落。

Claims (10)

  1. 一种发声器件，其包括盆架、具有磁间隙的磁路系统和固定于所述盆架的振动系统，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的磁钢，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜并插设于所述磁间隙的音圈，其特征在于，所述振膜包括位于中间位置且呈矩形的球顶以及环绕所述球顶并固定于所述盆架的折环，所述球顶包括朝向所述音圈凹陷形成的第一凸台以及第二凸台，所述第一凸台沿长轴方向延伸，所述第二凸台沿短轴方向延伸，所述音圈固定于所述第一凸台和所述第二凸台，所述球顶还包括设于角部位置的第三凸台，所述第三凸台一端与所述第一凸台连接、另一端与所述第二凸台连接。
  2. 根据权利要求1所述的发声器件，其特征在于，所述第三凸台呈圆弧形。
  3. 根据权利要求1所述的发声器件，其特征在于，所述第三凸台为四个，相邻的所述第一凸台和所述第二凸台之间均设有一个所述第三凸台。
  4. 根据权利要求1所述的发声器件，其特征在于，沿振动方向，所述第三凸台的凹陷深度小于所述第一凸台和所述第二凸台的凹陷深度。
  5. 根据权利要求3所述的发声器件，其特征在于，所述第一凸台、所述第二凸台以及所述第三凸台连接围设呈矩形。
  6. 根据权利要求1所述的发声器件，其特征在于，所述磁钢包括位于中间位置的主磁钢以及设于所述主磁钢周侧并与所述主磁钢间隔形成所述磁间隙的副磁钢。
  7. 根据权利要求6所述的发声器件，其特征在于，所述磁路系统还包括固定与所述主磁钢的主极芯以及固定于所述副磁钢朝向所述振膜一侧的副极芯，所述副极芯与所述盆架固定以将所述磁路系统固定于所述盆架。
  8. 根据权利要求6所述的发声器件，其特征在于，所述副磁钢为四个，四个所述副磁钢间隔设置，所述振动系统还包括固定于所述音圈远离所述振膜一端的支撑振膜，所述支撑振膜设于相邻两个所述副磁钢之间。
  9. 根据权利要求8所述的发声器件，其特征在于，所述振动系统还包括设于所述支撑振膜朝向所述振膜一侧的FPC，所述FPC包括与所述位于所述音圈外侧的第一固定部、固定于所述盆架的第二固定部以及连接所述第一固定部和所述第二固定部的中间弹性部。
  10. 根据权利要求9所述的发声器件，其特征在于，所述FPC为四个，两个所述FPC的所述第一固定部上设有与所述音圈电连接的焊盘。
PCT/CN2023/076314 2023-02-16 2023-02-16 发声器件 Ceased WO2024168643A1 (zh)

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