WO2024040495A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2024040495A1
WO2024040495A1 PCT/CN2022/114687 CN2022114687W WO2024040495A1 WO 2024040495 A1 WO2024040495 A1 WO 2024040495A1 CN 2022114687 W CN2022114687 W CN 2022114687W WO 2024040495 A1 WO2024040495 A1 WO 2024040495A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
sound
generating device
waterproof
circuit system
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/CN2022/114687
Other languages
English (en)
French (fr)
Inventor
张龙
杜希文
马利鹏
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 JP2022574298A priority Critical patent/JP7664289B2/ja
Priority to PCT/CN2022/114687 priority patent/WO2024040495A1/zh
Priority to US18/091,352 priority patent/US12192721B2/en
Publication of WO2024040495A1 publication Critical patent/WO2024040495A1/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
    • 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • 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
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers
    • 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
    • H04R7/04—Plane diaphragms

Definitions

  • the utility model relates to the field of electroacoustic conversion, and in particular to a sound-generating device used in electronic speaker products.
  • Sound-generating devices also known as speakers or horns, are used in speakers to convert audio signals into sound for playback.
  • the sound-generating device of the related art includes a basin frame, a vibration system fixed on the basin frame, and a magnetic circuit system with a magnetic gap.
  • the magnetic circuit system drives the vibration system to vibrate and produce sound.
  • the vibration system includes a vibration system fixed on the basin frame. The diaphragm of the frame, the dome attached to the diaphragm, and the voice coil inserted in the magnetic gap.
  • This utility model is to provide a sound-generating device with good waterproofness and better sound-generating performance.
  • the present invention provides a sound-generating device, which includes a basin frame, a vibration system respectively supported on the basin frame, and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a diaphragm with a diaphragm. assembly and a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound;
  • the diaphragm assembly includes a diaphragm bracket fixed to the basin frame and a vibration diaphragm bracket fixed to the diaphragm bracket.
  • the diaphragm that produces sound includes a first planar portion with an opening, an annular ring portion provided outside the first planar portion, and an annular ring portion provided outside the ring portion and connected to the The connecting part of the diaphragm bracket is fixedly connected.
  • the diaphragm assembly also includes a waterproof and breathable membrane fixed on the first plane part.
  • the first plane part includes a first inner edge away from the folding ring part. Viewed from the vibration direction, the first inner edge is located inside the voice coil, and the outer edge of the waterproof and breathable membrane is located outside the voice coil.
  • the waterproof and breathable membrane is fixed on a side of the first plane portion close to the magnetic circuit system.
  • the diaphragm further includes a second planar portion provided on a side of the first planar portion close to the magnetic circuit system, and the second planar portion is connected to the ring portion and parallel to the As for the first planar part, the outer edge of the waterproof breathable membrane is sandwiched between the first planar part and the second planar part.
  • the magnetic circuit system includes a main magnet and two auxiliary magnets arranged on both sides of the main magnet along the short axis direction of the sound-generating device.
  • the auxiliary magnet and the main magnet The magnetic gap is formed between them, and when viewed along the vibration direction, the first planar portion partially overlaps with the main magnetic steel and the auxiliary magnetic steel.
  • the magnetic circuit system further includes an upper clamping plate and a lower clamping plate fixed to the basin frame, and the auxiliary magnetic steel is sandwiched between the upper clamping plate and the lower clamping plate.
  • the magnetic circuit system further includes a pole core, and the main magnetic steel is sandwiched between the pole core and the lower clamping plate.
  • the diaphragm assembly further includes a sealing ring disposed outside the diaphragm bracket.
  • the arc-shaped concave direction of the folded ring portion is in a direction approaching the voice coil.
  • the waterproof and breathable membrane includes a waterproof layer and a metal mesh layer, and the waterproof layer is provided on a side of the metal mesh layer away from the magnetic circuit system.
  • the sound-generating device of the present invention includes a basin frame, a vibration system respectively supported on the basin frame, and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a diaphragm assembly with a diaphragm and a diaphragm assembly.
  • the diaphragm assembly includes a diaphragm bracket fixed to the basin frame and a diaphragm bracket fixed to the diaphragm bracket for vibrating and making sounds.
  • the diaphragm includes a first planar portion with an opening, an annular ring portion located outside the first planar portion, and an annular ring portion located outside the ring portion and connected to the vibrator.
  • the connection part of the membrane bracket is fixedly connected.
  • the diaphragm assembly also includes a waterproof and breathable membrane fixed on the first plane part.
  • the first plane part includes a first inner edge away from the ring part, along the vibration direction. It is observed that the first inner edge is located inside the voice coil, and the outer edge of the waterproof and breathable membrane is located outside the voice coil. Therefore, the dome design is cancelled, and the waterproof and breathable membrane is directly used as a dome.
  • the sealing width between the diaphragm and the waterproof and breathable membrane is larger, the waterproof performance is better, there are fewer parts, the assembly is simpler, and the locations for realizing the waterproof function are reduced, reducing the risk of waterproof failure.
  • Figure 1 is a schematic three-dimensional structural diagram of the sound-generating device of the present invention.
  • Figure 2 is a cross-sectional view along A-A in Figure 1;
  • Figure 3 is an exploded view of the sound-generating device of the present invention.
  • Figure 4 is a schematic structural diagram of the diaphragm assembly of the sound-generating device of the present invention.
  • Figure 5 is a schematic structural diagram of the diaphragm assembly of the sound-generating device of the present invention from another perspective;
  • Figure 6 is a schematic structural diagram of the waterproof and breathable membrane in the sound-generating device of the present invention.
  • the present utility model provides a sound-generating device 100, which includes a basin frame 1, a vibration system 2 respectively supported on the basin frame 1, a magnetic circuit system 3 with a magnetic gap 33, and an electrical connection. circuit board 4.
  • the vibration system 2 includes a diaphragm assembly 21 with a diaphragm 212 and a voice coil 22 inserted in the magnetic gap 33 to drive the diaphragm 212 to vibrate and produce sound;
  • the diaphragm assembly 21 includes a diaphragm bracket 211 fixed to the basin frame 1 and a fixed
  • the diaphragm 212 on the diaphragm support 211 is used for vibrating and producing sounds.
  • the diaphragm 212 includes a first planar portion 2121 with an opening 2121b, an annular ring portion 2122 provided outside the first planar portion 2121, and a connection located outside the folded ring portion 2122 and fixedly connected to the diaphragm bracket 211. part 2123.
  • the diaphragm assembly 21 also includes a waterproof and breathable membrane 214 fixed on the first planar part 2121.
  • the first planar part 2121 includes a first inner edge 2121a away from the folding ring part 2122. Viewed along the vibration direction, the first inner edge 2121a It is located inside the voice coil 22, and the outer edge 214a of the waterproof and breathable membrane 214 is located outside the voice coil 22, which increases the width of the waterproof seal and improves the waterproof performance.
  • the waterproof and breathable membrane 214 includes a waterproof layer 2141 and a metal mesh layer 2142.
  • the waterproof layer 2141 is provided on the side of the metal mesh layer 2142 away from the magnetic circuit system 3.
  • the waterproof layer 2141 is made of Teflon. In other optional implementations, the waterproof layer 2141 can also be provided on the side of the metal mesh layer 2142 close to the magnetic circuit system 3 .
  • the waterproof and breathable membrane 214 is fixed on the side of the first planar portion 2121 close to the magnetic circuit system 3, so that the connection between the waterproof and breathable film and the first planar portion is stronger and less likely to fall off.
  • the waterproof and breathable membrane can also be fixed on the side of the first plane part away from the magnetic circuit system.
  • the diaphragm assembly 21 also includes a sealing ring 213 disposed outside the diaphragm bracket 211 to enhance the overall waterproof performance of the sound-generating device 100 .
  • the sealing ring may not be provided, but the waterproof function of the entire device may be designed on the parts that cooperate with the sound-generating device according to the design requirements of the electronic device.
  • the diaphragm 212 also includes a second planar portion 2124 provided on the side of the first planar portion 2121 close to the magnetic circuit system 3.
  • the second planar portion 2124 is connected to the ring portion 2122 and parallel to the first planar portion 2121, and is waterproof and breathable.
  • the outer edge 214a of the membrane 214 is sandwiched between the first planar portion 2121 and the second planar portion 2124, further enhancing the waterproof performance of the sound-generating device 100.
  • the arc-shaped concave direction of the folded ring portion 2122 is toward the voice coil 22 .
  • the arc-shaped concave direction of the folded ring portion 2122 can also be in the opposite direction, that is, in the direction away from the voice coil. dented.
  • the magnetic circuit system 3 includes a main magnet 31 and two auxiliary magnets 32 arranged on both sides of the main magnet 31 along the short axis direction of the sound-generating device.
  • a magnetic gap 33 is formed between the auxiliary magnets 32 and the main magnet 31.
  • the first planar portion 2121 partially overlaps the main magnet 31 and the auxiliary magnet 32, and the waterproof area can cover the magnetic gap 33, improving the waterproof performance of the sound-generating device 100.
  • the magnetic circuit system 3 also includes an upper plywood 34 and a lower plywood 35 fixed to the basin frame 1.
  • the auxiliary magnet 32 is sandwiched between the upper plywood 34 and the lower plywood 35.
  • the main magnet 31 is fixed on the lower plywood 35.
  • the magnetic circuit system 3 also includes a pole core 36 , and the main magnetic steel 31 is sandwiched between the pole core 36 and the lower plywood 35 .
  • the sound-generating device includes a basin frame, a vibration system respectively supported on the basin frame, and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a diaphragm assembly with a diaphragm and an insertion device.
  • a voice coil that drives a diaphragm to vibrate and produce sound in a magnetic gap includes a diaphragm bracket fixed to the basin frame and a diaphragm fixed to the diaphragm bracket for vibrating and sounding, characterized in that: the diaphragm includes an opening The first plane part, the annular ring part provided on the outside of the first plane part, and the connection part provided on the outside of the ring part and fixedly connected with the diaphragm bracket, the diaphragm assembly also includes a part fixed on the first plane The first flat part includes a first inner edge away from the ring part.
  • the first inner edge is located inside the voice coil, and the outer edge of the waterproof and breathable membrane is located outside the voice coil. From Therefore, the dome design is cancelled, and the waterproof and breathable membrane is used directly as the dome.
  • the sealing width between the diaphragm and the waterproof and breathable membrane is larger, the waterproof performance is better, there are fewer parts, and the assembly is simpler. The positions for realizing the waterproof function are reduced and the waterproofing is reduced. Risk of failure.

Landscapes

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

Abstract

本实用新型提供了一种发声器件，其包括盆架、振动系统和磁路系统，所述振动系统包括振膜组件和插设于所述磁间隙内的音圈；所述振膜组件包括固定于所述盆架的振膜支架和固定于所述振膜支架的用于振动发声的所述振膜，所述振膜包括具有开口的第一平面部、设于所述第一平面部的外侧的呈环状的折环部以及设于所述折环部外侧且与所述振膜支架固定连接的连接部，所述振膜组件还包括固定于所述第一平面部的防水透气膜，所述第一平面部包括远离所述折环部的第一内边，沿振动方向观察，所述第一内边位于所述音圈的内侧，且所述防水透气膜的外边缘位于所述音圈的外侧。与相关技术比，本实用新型的发声器件防水性能更优。

Description

发声器件 技术领域
本实用新型涉及电声转换领域，尤其涉及一种运用于电子音箱产品的发声器件。
 背景技术
发声器件又名扬声器或喇叭，运用于音箱中实现将音频信号转化为声音播放。
相关技术的发声器件包括盆架、固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述磁路系统驱动所述振动系统振动发声，所述振动系统包括固定于所述盆架的振膜、贴合于所述振膜的球顶、以及插设于所述磁间隙的音圈。
 技术问题
然而，相关技术的发声器件中，为了提高防水性能，后腔被设置成密闭的，温度升高后后腔气压变大，响度降低，发声效果不好。相关技术中，还公开了球顶局部开孔并粘贴防水透气膜的方案，零件较多，组装较复杂，实现防水功能的位置较多，容易造成防水失效。
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防水性好且发声性能更优的发声器件。
为了达到上述目的，本实用新型提供了一种发声器件，其包括盆架、分别支撑于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括具有振膜的振膜组件和插设于所述磁间隙内以驱动所述振膜振动发声的音圈；所述振膜组件包括固定于所述盆架的振膜支架和固定于所述振膜支架的用于振动发声的所述振膜，所述振膜包括具有开口的第一平面部、设于所述第一平面部的外侧的呈环状的折环部以及设于所述折环部外侧且与所述振膜支架固定连接的连接部，所述振膜组件还包括固定于所述第一平面部的防水透气膜，所述第一平面部包括远离所述折环部的第一内边，沿振动方向观察，所述第一内边位于所述音圈的内侧，且所述防水透气膜的外边缘位于所述音圈的外侧
优选地，所述防水透气膜固定于所述第一平面部的靠近所述磁路系统的一侧。
优选地，所述振膜还包括设于所述第一平面部的靠近所述磁路系统的一侧的第二平面部，所述第二平面部连接于所述折环部且平行于所述第一平面部，所述防水透气膜的外边缘夹设于所述第一平面部和所述第二平面部之间。
优选地，所述磁路系统包括主磁钢和沿所述发声器件的短轴方向设于所述主磁钢的两侧的两个副磁钢，所述副磁钢和所述主磁钢之间形成所述磁间隙，沿振动方向观察，所述第一平面部与所述主磁钢、所述副磁钢均有部分重叠。
优选地，所述磁路系统还包括固定于所述盆架的上夹板和下夹板，所述副磁钢夹设于所述上夹板和所述下夹板之间。
优选地，所述磁路系统还包括极芯，所述主磁钢夹设于所述极芯和所述下夹板之间。
优选地，所述振膜组件还包括设置于所述振膜支架外侧的密封圈。
优选地，所述折环部的弧形凹陷方向为向靠近所述音圈的方向。
优选地，所述防水透气膜包括防水层和金属网层，所述防水层设于所述金属网层的远离所述磁路系统的一侧。
 有益效果
与相关技术相比，本实用新型的发声器件中，包括盆架、分别支撑于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括具有振膜的振膜组件和插设于所述磁间隙内以驱动所述振膜振动发声的音圈；所述振膜组件包括固定于所述盆架的振膜支架和固定于所述振膜支架的用于振动发声的所述振膜，所述振膜包括具有开口的第一平面部、设于所述第一平面部的外侧的呈环状的折环部以及设于所述折环部外侧且与所述振膜支架固定连接的连接部，所述振膜组件还包括固定于所述第一平面部的防水透气膜，所述第一平面部包括远离所述折环部的第一内边，沿振动方向观察，所述第一内边位于所述音圈的内侧，且所述防水透气膜的外边缘位于所述音圈的外侧，由此，取消球顶设计，防水透气膜直接作为球顶使用，振膜与防水透气膜的密封宽度更大，防水性能更优，零件更少，组装更简单，实现防水功能的位置减少，降低防水失效风险。
 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为沿图1中A-A的剖视图；
图3为本实用新型发声器件的爆炸图；
图4为本实用新型发声器件的振膜组件的结构示意图；
图5为本实用新型发声器件的振膜组件的另一视角的结构示意图；
图6为本实用新型发声器件中的防水透气膜的结构示意图。
 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，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。
请同时参阅图1-6，本实用新型提供了一种发声器件100，其包括盆架1、分别支撑于盆架1的振动系统2和具有磁间隙33的磁路系统3以及用于电连接的电路板4。振动系统2包括具有振膜212的振膜组件21和插设于磁间隙33内以驱动振膜212振动发声的音圈22；振膜组件21包括固定于盆架1的振膜支架211和固定于振膜支架211的用于振动发声的振膜212。振膜212包括具有开口2121b的第一平面部2121、设于第一平面部2121的外侧的呈环状的折环部2122以及设于折环部2122外侧且与振膜支架211固定连接的连接部2123，振膜组件21还包括固定于第一平面部2121的防水透气膜214，第一平面部2121包括远离折环部2122的第一内边2121a，沿振动方向观察，第一内边2121a位于音圈22的内侧，且防水透气膜214的外边缘214a位于音圈22的外侧，增加防水密封的宽度，防水性能更优。
本实施方式中，防水透气膜214包括防水层2141和金属网层2142，防水层2141设于金属网层2142的远离磁路系统3的一侧，防水层2141的材质为特氟龙。在其他可选的实施方式中，防水层2141也可以设于金属网层2142的靠近磁路系统3的一侧。
本实施方式中，防水透气膜214固定于第一平面部2121的靠近磁路系统3的一侧，使得防水透气膜与第一平面部的连接更牢固，不易脱落，在其他可选的实施方式中，防水透气膜也可以固定于第一平面部的远离磁路系统的一侧。
本实施方式中，振膜组件21还包括设置于振膜支架211外侧的密封圈213，用于增强发声器件100整体的防水性能。在其他可选的实施方式中，也可以不设置密封圈，而是根据电子设备的设计需求将整机防水功能设计在与发声器件配合的零件上。
振膜212还包括设于第一平面部2121的靠近磁路系统3的一侧的第二平面部2124，第二平面部2124连接于折环部2122且平行于第一平面部2121，防水透气膜214的外边缘214a夹设于第一平面部2121和第二平面部2124之间，进一步增强发声器件100的防水性能。
本实施方式中，折环部2122的弧形凹陷方向为向靠近音圈22的方向，在其他实施方式中，折环部的弧形凹陷方向也可以为相反方向，即向远离音圈的方向凹陷。
磁路系统3包括主磁钢31和沿发声器件的短轴方向设于主磁钢31的两侧的两个副磁钢32，副磁钢32和主磁钢31之间形成磁间隙33，沿振动方向观察，第一平面部2121与主磁钢31、副磁钢32均有部分重叠，防水面积可以覆盖磁间隙33，提升发声器件100的防水性能。
磁路系统3还包括固定于盆架1的上夹板34和下夹板35，副磁钢32夹设于上夹板34和下夹板35之间，主磁钢31固定于下夹板35上。磁路系统3还包括极芯36，主磁钢31夹设于极芯36和下夹板35之间。
与相关技术相比，本实用新型的发声器件中，发声器件包括盆架、分别支撑于盆架的振动系统和具有磁间隙的磁路系统，振动系统包括具有振膜的振膜组件和插设于磁间隙内以驱动振膜振动发声的音圈；振膜组件包括固定于盆架的振膜支架和固定于振膜支架的用于振动发声的振膜，其特征在于：振膜包括具有开口的第一平面部、设于第一平面部的外侧的呈环状的折环部以及设于折环部外侧且与振膜支架固定连接的连接部，振膜组件还包括固定于第一平面部的防水透气膜，第一平面部包括远离折环部的第一内边，沿振动方向观察，第一内边位于音圈的内侧，且防水透气膜的外边缘位于音圈的外侧，由此，取消球顶设计，防水透气膜直接作为球顶使用，振膜与防水透气膜的密封宽度更大，防水性能更优，零件更少，组装更简单，实现防水功能的位置减少，降低防水失效风险。
以上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 (9)

  1. 一种发声器件，其包括盆架、分别支撑于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括具有振膜的振膜组件和插设于所述磁间隙内以驱动所述振膜振动发声的音圈；所述振膜组件包括固定于所述盆架的振膜支架和固定于所述振膜支架的用于振动发声的所述振膜，其特征在于：所述振膜包括具有开口的第一平面部、设于所述第一平面部的外侧的呈环状的折环部以及设于所述折环部外侧且与所述振膜支架固定连接的连接部，所述振膜组件还包括固定于所述第一平面部的防水透气膜，所述第一平面部包括远离所述折环部的第一内边，沿振动方向观察，所述第一内边位于所述音圈的内侧，且所述防水透气膜的外边缘位于所述音圈的外侧。
  2. 根据权利要求1所述的发声器件，其特征在于，所述防水透气膜固定于所述第一平面部的靠近所述磁路系统的一侧。
  3. 根据权利要求2所述的发声器件，其特征在于，所述振膜还包括设于所述第一平面部的靠近所述磁路系统的一侧的第二平面部，所述第二平面部连接于所述折环部且平行于所述第一平面部，所述防水透气膜的外边缘夹设于所述第一平面部和所述第二平面部之间。
  4. 根据权利要求3所述的发声器件，其特征在于，所述磁路系统包括主磁钢和沿所述发声器件的短轴方向设于所述主磁钢的两侧的两个副磁钢，所述副磁钢和所述主磁钢之间形成所述磁间隙，沿振动方向观察，所述第一平面部与所述主磁钢、所述副磁钢均有部分重叠。
  5. 根据权利要求4所述的发声器件，其特征在于，所述磁路系统还包括固定于所述盆架的上夹板和下夹板，所述副磁钢夹设于所述上夹板和所述下夹板之间。
  6. 根据权利要求5所述的发声器件，其特征在于，所述磁路系统还包括极芯，所述主磁钢夹设于所述极芯和所述下夹板之间。
  7. 根据权利要求1所述的发声器件，其特征在于，所述振膜组件还包括设置于所述振膜支架外侧的密封圈。
  8. 根据权利要求1所述的发声器件，其特征在于，所述折环部的弧形凹陷方向为向靠近所述音圈的方向。
  9. 根据权利要求1所述的发声器件，其特征在于，所述防水透气膜包括防水层和金属网层，所述防水层设于所述金属网层的远离所述磁路系统的一侧。
     
PCT/CN2022/114687 2022-08-25 2022-08-25 发声器件 Ceased WO2024040495A1 (zh)

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