WO2022222489A1 - 发声装置 - Google Patents

发声装置 Download PDF

Info

Publication number
WO2022222489A1
WO2022222489A1 PCT/CN2021/136542 CN2021136542W WO2022222489A1 WO 2022222489 A1 WO2022222489 A1 WO 2022222489A1 CN 2021136542 W CN2021136542 W CN 2021136542W WO 2022222489 A1 WO2022222489 A1 WO 2022222489A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibration system
magnetic
bass
sound
magnetic steel
Prior art date
Application number
PCT/CN2021/136542
Other languages
English (en)
French (fr)
Inventor
王莹
郭晓冬
Original Assignee
歌尔股份有限公司
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 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2022222489A1 publication Critical patent/WO2022222489A1/zh

Links

Images

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
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • 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

Definitions

  • the invention relates to the technical field of electro-acoustic conversion, in particular to a sound-generating device.
  • the speakers of some existing electronic devices combine a woofer and a tweeter, so that the low-frequency part and the high-frequency part of the audio can be fully and perfectly presented, and the frequency bandwidth can be fully expanded.
  • the woofer and the tweeter share a magnetic circuit system, and the woofer and the tweeter are located on opposite sides of the yoke.
  • the volume of the magnetic circuit system makes the magnetic flux smaller, which affects the sound of the sound-emitting device.
  • the main purpose of the present invention is to provide a sounding device, which aims to solve the technical problem that the magnetic flux is small due to the compression of the volume of the magnetic circuit system of the sounding device with a tweeter unit and a woofer unit.
  • the sounding device provided by the present invention includes:
  • the magnetic circuit system includes a main magnet steel disposed on the bottom wall, an avoidance step is provided at one end of the main magnet steel near the high-pitched vibration system, and the high-pitched voice coil of the high-pitched vibration system is inserted into the avoidance step and in the first magnetic gap enclosed by the side walls.
  • the main magnetic steel includes a first magnetic steel provided on the bottom wall and a second magnetic steel provided on the first magnetic steel, along the vibration direction of the tweeter coil, the The cross-sectional area of the first magnetic steel is larger than the cross-sectional area of the second magnetic steel, the second magnetic steel is opposite to the side wall, and the first magnetic steel faces the high-pitched vibration system.
  • the top surface and the sidewalls enclose the first magnetic gap.
  • the first magnetic steel includes a bottom surface disposed opposite to the top surface, and a first side surface connecting the bottom surface and the top surface, the bottom surface is connected to the bottom wall, and the first side surface is connected to the bottom wall.
  • the side surfaces are in contact with the side walls.
  • the magnetic yoke further includes a mounting portion extending from the side wall in a direction away from the main magnetic steel, the high-pitched vibration system includes a high-pitched diaphragm fixed on the mounting portion, and the high-pitched The voice coil drives the tweeter diaphragm to vibrate and produce sound.
  • the tweeter diaphragm is a flat metal diaphragm.
  • the tweeter vibration system further includes a tweeter mounting ring arranged on the mounting portion, and the edge of the tweeter diaphragm is fixed on the tweeter mounting ring.
  • the magnetic circuit system further includes an auxiliary magnet arranged around the main magnet, the auxiliary magnet and the main magnet are respectively arranged on both sides of the side wall, and the bass vibration system is The bass voice coil is inserted into the second magnetic gap enclosed between the secondary magnet and the side wall.
  • the secondary magnetic steel is provided on the mounting portion, and the secondary magnetic steel and the tweeter diaphragm are provided on opposite sides of the mounting portion.
  • the magnetic circuit system further includes a secondary washer arranged on the secondary magnetic steel
  • the bass vibration system includes a bass diaphragm arranged on the secondary washer
  • the bass voice coil drives the The bass diaphragm vibrates to produce sound.
  • a bass rear cavity is formed between the bass diaphragm and the magnetic yoke, and a sound outlet is provided on the magnetic yoke to communicate with the bass rear cavity and an external space.
  • the present invention by respectively setting a treble vibration system and a bass vibration system on both sides of the magnetic circuit system, it is possible to realize that the treble vibration system outputs treble and the bass vibration system outputs bass through one sounding device, and the sounding frequency bandwidth of the sounding device is improved;
  • the high-pitched vibration system and the bass vibration system share the same magnetic circuit system, thereby reducing the size of the sound-emitting device; by setting the avoidance steps, the volume of the main magnet can be maximized, the magnetic flux of the main magnet can be increased, and the effective magnetic field can be concentrated.
  • FIG. 1 is a schematic three-dimensional structural diagram of an embodiment of a sound-emitting device of the present invention
  • FIG. 2 is a schematic diagram of a disassembled structure of an embodiment of the sounding device of the present invention
  • FIG. 3 is a schematic cross-sectional structure diagram of the sounding device shown in FIG. 1 along the line A-A;
  • Fig. 4 is the enlarged structural schematic diagram of part B of the sounding device shown in Fig. 3;
  • the low-pitched voice coil 31 and The tweeter voice coil 11 vibrates respectively, so that the bass diaphragm 33 and the tweeter diaphragm 13 can be respectively driven to vibrate and produce sound.
  • the bass in the bass vibration system 3 and the treble in the treble vibration system 1 are both in comparison.
  • the sound generating device 100 can be directly installed in the electronic device, and the bass voice coil 31 and the high-pitched voice coil 11 are respectively electrically connected to the control board of the electronic device.
  • the sound-generating device 100 can also be assembled in a casing with a sound-emitting channel, assembled into a sound-generating module, and then the sound-generating module can be arranged in the electronic device.
  • the treble voice coil 11 vibrates in the first magnetic gap 72.
  • the end of the treble voice coil 11 close to the bass vibration system 3 may contact the avoidance step 715.
  • the maximum amplitude of the diaphragm 13 sets the depth of the first magnetic gap 72 , that is, the height of the avoidance step 715 along the vibration direction of the bass voice coil 31 is set according to the maximum amplitude of the tweeter diaphragm 13 .
  • the main magnet 71 includes a first magnet 711 disposed on the bottom wall 51 and a second magnet 713 disposed on the first magnet 711 .
  • the cross-sectional area along the first magnetic steel 711 is larger than the cross-sectional area of the second magnetic steel 713;
  • the two side surfaces 7131 , the top surface 7111 of the first magnetic steel 711 facing the tweeter vibration system 1 , and the side walls 53 enclose the first magnetic gap 72 .
  • the avoidance step 715 in the main magnetic steel 71 is formed by stacking two magnetic steels with different sizes, wherein a second magnetic steel 713 with a smaller size is arranged on the first magnetic steel 711 to surround Avoid steps 715.
  • the main magnet steel 71 may be a single piece.
  • the first magnetic steel 711 and the second magnetic steel 713 are cylindrical, the diameter of the first magnetic steel 711 is larger than that of the second magnetic steel 713 , and the first magnetic steel 711 and the second magnetic steel 713 are coaxial set up.
  • a main washer 76 is also provided on the first magnetic steel 711 to optimize the magnetic field.
  • the magnetic yoke 5 further includes a mounting portion 55 extending away from the main magnet 71 from the side wall 53 , and the tweeter vibration system 1 includes a tweeter diaphragm 13 fixed on the mounting portion 55 ,
  • the tweeter voice coil 11 drives the tweeter diaphragm 13 to vibrate and produce sound.
  • the tweeter diaphragm 13 may be a plane diaphragm, or may be a diaphragm having a folded ring structure, and the material of the tweeter diaphragm 13 may be rubber, paper, or the like.
  • the tweeter diaphragm 13 is a flat metal diaphragm, which is beneficial to further reduce the size of the sounding device 100.
  • the tweeter vibration system 1 further includes a tweeter mounting ring 15 disposed on the mounting portion 55 , and the edge of the tweeter diaphragm 13 is fixed on the tweeter mounting ring 15 .
  • the mounting portion 55 includes a first fixing seat 551 connected to the side wall 53 and a second fixing seat 553 arranged around the first fixing seat 551.
  • the second fixing seat 553 is provided with an opening facing away from the bass.
  • the ventilation groove 552 in the direction of the vibration system 3, the edge of the first fixing seat 551 close to the ventilation groove 552 is provided with a first installation step (not marked), the tweeter mounting ring 15 is set on the first installation step, and the edge of the tweeter diaphragm 13 It is fixed on the tweeter mounting ring 15 , so that the tweeter diaphragm 13 is suspended on the first fixing seat 551 .
  • the magnetic circuit system 7 also includes a secondary magnetic steel 73 arranged around the main magnetic steel 71.
  • the secondary magnetic steel 73 and the main magnetic steel 71 are respectively arranged on both sides of the side wall 53.
  • the bass voice coil 31 of the system 3 is inserted into the second magnetic gap 74 enclosed between the secondary magnet steel 73 and the side wall 53 .
  • the secondary magnetic steel 73 is annular.
  • the secondary magnetic steel 73 may also be in other shapes, and the number of secondary magnetic steels 73 may also be multiple.
  • the auxiliary magnetic steel 73 is disposed on the mounting portion 55 , and the auxiliary magnetic steel 73 and the tweeter diaphragm 13 are respectively disposed on opposite sides of the mounting portion 55 .
  • the secondary magnetic steel 73 is arranged on the second fixing base 553, and one side of the second fixing base 553 is surrounded by a ventilation groove 552 with an opening, and the opposite side thereof is connected with the secondary magnetic steel 73, so that through a magnetic yoke 5,
  • the main magnetic steel 71 , the secondary magnetic steel 73 and the tweeter diaphragm 13 are fixed at the same time.
  • the magnetic circuit system 7 also includes a secondary washer 75 arranged on the secondary magnetic steel 73, the bass vibration system 3 includes a bass diaphragm 33 arranged on the secondary washer 75, and the bass voice coil 31 drives the bass diaphragm 33 to vibrate and sound.
  • a second installation step (not marked) is provided at one end of the sub washer 75 away from the second magnetic gap 74, and the bass vibration system 3 further includes a bass installation ring arranged on the second installation step. 35.
  • the bass diaphragm 33 includes a center portion, a folding ring portion and a connecting portion which are sequentially arranged from inside to outside. The connecting portion is fixed on the bass mounting ring 35. 75 is far away from the end of the second magnetic gap 74 to maximize the area of the bass diaphragm 33 and improve the loudness of the sound generating device 100 .
  • the sound generating device 100 further includes a front cover 9 which is covered on the side of the magnetic yoke 5 close to the bass vibration system 3 , and the front cover 9 is provided with a plurality of sound holes.
  • the sounding device 100 also includes a passive diaphragm 91 arranged opposite the bass diaphragm 33, the edge of the passive diaphragm 91 is fixed on the front cover 9, when the bass diaphragm 33 vibrates, the flowing air pushes the passive diaphragm 91 The diaphragm 91 vibrates together, thereby improving sound quality.
  • a bass rear cavity is formed between the bass diaphragm 33 and the magnetic yoke 5 , and a sound outlet 54 is formed on the magnetic yoke 5 to communicate with the bass rear cavity and the external space.
  • the sound outlet hole 54 is opened on the groove bottom wall 523 of the ventilation groove 552 and on the groove side wall 521 close to the first magnetic gap 72, and the first fixed seat 551 and the second fixed seat 553 have a certain height difference
  • the tweeter mounting ring 15 is arranged at the end of the side wall 521 of a slot, the secondary magnetic steel 73 and the bottom wall 523 of the slot are on the side away from the opening, and the first magnetic gap 72 passes through the outlet of the side wall 521 or the bottom wall 523 of the slot.

Landscapes

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

Abstract

本发明公开一种发声装置，所述发声装置包括高音振动系统、低音振动系统、磁轭和磁路系统；磁轭包括底壁和自所述底壁向靠近所述高音振动系统延伸的侧壁，所述低音振动系统和所述高音振动系统分设于所述磁轭的相对两侧；磁路系统包括设于所述底壁上的主磁钢，所述主磁钢靠近所述高音振动系统的一端设置有避让台阶，所述高音振动系统的高音音圈插入所述避让台阶和所述侧壁围成的第一磁间隙内。本发明公开的发声装置尺寸小，音频频宽宽，有效磁场集中。

Description

发声装置 技术领域
本发明涉及电声转换技术领域，特别涉及一种发声装置。
背景技术
为实现完美的音响效果，现有的部分电子设备的扬声器将低音单元和高音单元组合，从而可以充分完美的呈现音频的低频部分和高频部分，充分拓展频宽。请参阅图1，现有技术中，将低音单元和高音单元共用一个磁路系统，同时将低音单元和高音单元分设在磁轭的相对两侧，为了保证发声装置具有较小的尺寸，需要压缩磁路系统体积，从而使得磁通量较小，影响发声装置发声。
因此，需要提供一种新型的发声装置，解决上述技术问题。
发明内容
本发明的主要目的是提供一种发声装置，旨在解决具有高音单元和低音单元的发声装置因为压缩磁路系统体积，导致磁通量较小的技术问题。
为实现上述目的，本发明提供的所述发声装置包括：
高音振动系统和低音振动系统；
磁轭，包括底壁和自所述底壁向靠近所述高音振动系统延伸的侧壁，所述低音振动系统和所述高音振动系统分设于所述磁轭的相对两侧；
磁路系统，包括设于所述底壁上的主磁钢，所述主磁钢靠近所述高音振动系统的一端设置有避让台阶，所述高音振动系统的高音音圈插入所述避让台阶和所述侧壁围成的第一磁间隙内。
可选地，所述主磁钢包括设于所述底壁上的第一磁钢和设于所述第一磁钢上的第二磁钢，沿所述高音音圈的振动方向，所述第一磁钢的横截面积大于和所述第二磁钢的横截面积，所述第二磁钢与所述侧壁相对的第二侧面、所述第一磁钢朝向所述高音振动系统的顶面、以及所述侧壁围成所述第一磁 间隙。
可选地，所述第一磁钢包括与所述顶面相对设置的底面、以及连接所述底面和所述顶面的第一侧面，所述底面与所述底壁连接，所述第一侧面与所述侧壁抵接。
可选地，所述磁轭还包括自所述侧壁向远离所述主磁钢方向延伸的安装部，所述高音振动系统包括固设于所述安装部上的高音振膜，所述高音音圈驱动所述高音振膜振动发声。
可选地，所述高音振膜为平面金属振膜。
可选地，所述高音振动系统还包括设于所述安装部上的高音安装环，所述高音振膜的边沿固设于所述高音安装环上。
可选地，所述磁路系统还包括绕所述主磁钢设置的副磁钢，所述副磁钢和所述主磁钢分设于所述侧壁的两侧，所述低音振动系统的低音音圈插入所述副磁钢和所述侧壁之间围成的第二磁间隙。
可选地，所述副磁钢设于所述安装部上，所述副磁钢和所述高音振膜分设于所述安装部的相对两侧。
可选地，所述磁路系统还包括设于所述副磁钢上的副华司，所述低音振动系统包括设于所述副华司上的低音振膜，所述低音音圈驱动所述低音振膜振动发声。
可选地，所述低音振膜和所述磁轭之间形成低音后腔，所述磁轭上开设有出音孔连通所述低音后腔和外部空间。
在本发明中，通过在磁路系统两侧分别设置高音振动系统和低音振动系统，从而可以通过一个发声装置实现高音振动系统输出高音和低音振动系统输出低音，提高发声装置的发声频宽；通过设置高音振动系统和低音振动系统共用同一磁路系统，从而减小了发声装置的尺寸；通过设置避让台阶，从而可以最大程度的提高主磁钢体积，增加主磁钢的磁通量，使得有效磁场集中。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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示出的结构获得其他的附图。
图1为本发明发声装置一实施例的立体结构示意图；
图2为本发明发声装置一实施例的拆解结构示意图；
图3为图1所示发声装置沿A-A线的剖面结构示意图；
图4为图3所示发声装置B部分的放大结构示意图；
图5为图3所示发声装置C部分的放大结构示意图。
实施例附图标号说明：
标号 名称 标号 名称
100 发声装置 1 高音振动系统
11 高音音圈 13 高音振膜
15 高音安装环 3 低音振动系统
31 低音音圈 33 低音振膜
35 低音安装环 5 磁轭
51 底壁 54 出音孔
53 侧壁 551 第一固定座
55 安装部 521 槽侧壁
552 通气槽 553 第二固定座
523 槽底壁 71 主磁钢
7 磁路系统 7111 顶面
711 第一磁钢 7115 第一侧面
7113 底面 7131 第二侧面
713 第二磁钢 72 第一磁间隙
715 避让台阶 74 第二磁间隙
73 副磁钢 96 主华司
75 副华司 9 前盖
91 无源振膜    
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步 说明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，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作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提出一种发声装置。
参照图1至图5，本发明技术方案提出的一种发声装置100，所述发声装置100包括高音振动系统1、低音振动系统3、磁轭5和磁路系统7；磁轭5包括底壁51和自所述底壁51向靠近所述高音振动系统1延伸的侧壁53，所述低音振动系统3和所述高音振动系统1分设于所述磁轭5的相对两侧；磁路系统7包括设于所述底壁51上的主磁钢71，所述主磁钢71靠近所述高音振动系统1的一端设置有避让台阶715，所述高音振动系统1的高音音圈11插入所述避让台阶715和所述侧壁53围成的第一磁间隙72内。
具体地，低音振动系统3包括低音振膜33和支撑低音振膜33振动的低音音圈31，高音振动系统1包括与磁路系统7相间隔设置的高音振膜13和支撑高音振膜13振动的高音音圈11，高音音圈11和低音音圈31分别与外部电 路电连接，高音音圈11和低音音圈31通电，在磁路系统7所产生的磁场影响下，低音音圈31和高音音圈11分别进行振动，从而可分别驱动低音振膜33和高音振膜13振动发声。在本实施例中低音振动系统3中的低音和高音振动系统1中的高音均是两者相较而言。发声装置100可以直接设置于电子设备中，将低音音圈31和高音音圈11分别与电子设备的控制主板电连接。发声装置100还可以装配于具有出音通道的外壳内，装配成发声模组，再将发声模组设置于电子设备中。
高音音圈11在第一磁间隙72内振动，当高音振膜13振幅较大时，高音音圈11靠近低音振动系统3的一端有可能接触到避让台阶715，所以本领域技术人员根据高音振膜13的最大振幅设置第一磁间隙72的深度，即根据高音振膜13的最大振幅设置避让台阶715沿低音音圈31振动方向的高度。
在本发明中，通过在磁路系统7两侧分别设置高音振动系统1和低音振动系统3，从而可以通过一个发声装置100实现高音振动系统1输出高音和低音振动系统3输出低音，提高发声装置100的发声频宽；通过设置高音振动系统1和低音振动系统3共用同一磁路系统7，从而减小了发声装置100的尺寸；通过设置避让台阶715，从而可以最大程度的提高主磁钢71体积，增加主磁钢71的磁通量，使得有效磁场集中。
请参阅图2至图5，所述主磁钢71包括设于所述底壁51上的第一磁钢711和设于所述第一磁钢711上的第二磁钢713，沿所述高音音圈11的振动方向，所述第一磁钢711沿的横截面积大于和所述第二磁钢713的横截面积；所述第二磁钢713与所述侧壁53相对的第二侧面7131、所述第一磁钢711朝向所述高音振动系统1的顶面7111、以及所述侧壁53围成所述第一磁间隙72。在本实施例中，主磁钢71中的避让台阶715通过两个尺寸不一致的磁钢叠设形成，其中，通过在第一磁钢711上设置一个尺寸较小的第二磁钢713围成避让台阶715。在其他实施例中，主磁钢71可以为一体件。在图2所示实施例中，第一磁钢711和第二磁钢713为圆柱，第一磁钢711的直径大于第二磁钢713，第一磁钢711和第二磁钢713同轴设置。在第一磁钢711上还设置有主华司76，以优化磁场。
所述第一磁钢711包括与所述顶面7111相对设置的底面7113、以及连接所述底面7113和所述顶面7111的第一侧面7115，所述底面7113与所述底壁 51连接，所述第一侧面7115与所述侧壁53抵接。为了在有限的空间内，尽量增加发声装置100内的磁通量，将第一磁钢711的尺寸制成可收容于磁轭5内的最大尺寸，使得第一侧面7115与所述侧壁53抵接。
所述磁轭5还包括自所述侧壁53向远离所述主磁钢71方向延伸的安装部55，所述高音振动系统1包括固设于所述安装部55上的高音振膜13，所述高音音圈11驱动所述高音振膜13振动发声。高音振膜13具体可以是平面振膜，也可以是具有折环结构的振膜，高音振膜13的材质可以是橡胶、纸质等。在一实施例中，所述高音振膜13为平面金属振膜，设置为平面振膜有利于进一步减小发声装置100的尺寸，平面金属振膜的材料可以是不锈钢、硅钢、碳素钢、铁镍合金、铁钴钒合金、软磁铁氧体中的一种或多种。相较于橡胶材质或纸质的振膜，金属材料制成的振膜振动时，发出的音质具有金属质感。进一步还可以在金属材料层外侧设置阻尼层，阻尼层可以是阻尼胶或者聚酯膜等高分子聚合物，还可以是聚氨酯等树脂材质。通过阻尼层可以调节平面金属振膜的阻尼性，有利于平面金属振膜振动的平衡，带来更加细腻的听感。平面金属振膜在振膜时振幅较小，使得所需的第一磁间隙72的空间较小，有利于进一步增加主磁钢71尺寸，从而增加磁通量。
请参阅图4，所述高音振动系统1还包括设于所述安装部55上的高音安装环15，所述高音振膜13的边沿固设于所述高音安装环15上。在本实施例中，安装部55包括与侧壁53连接的第一固定座551和绕所述第一固定座551设置的第二固定座553，第二固定座553上开设有开口朝向背离低音振动系统3方向的通气槽552，第一固定座551靠近通气槽552的边沿上设置有第一安装台阶(未标示)，高音安装环15设置在第一安装台阶上，高音振膜13的边沿固设在高音安装环15上，使得高音振膜13悬置在第一固定座551上。
所述磁路系统7还包括绕所述主磁钢71设置的副磁钢73，所述副磁钢73和所述主磁钢71分设于所述侧壁53的两侧，所述低音振动系统3的低音音圈31插入所述副磁钢73和所述侧壁53之间围成的第二磁间隙74。在本实施例中，副磁钢73为环形，在其他实施例中，副磁钢73还可以为其他形状，副磁钢73的数量还可以为多个，多个副磁钢73绕主磁钢71设置。
请结合参阅图5，所述副磁钢73设于所述安装部55上，所述副磁钢73和所述高音振膜13分设于所述安装部55的相对两侧。具体地，副磁钢73设 置于第二固定座553上，第二固定座553的一侧围成具有开口的通气槽552，其相对侧与副磁钢73连接，从而通过一个磁轭5，实现同时固定主磁钢71、副磁钢73和高音振膜13。
所述磁路系统7还包括设于所述副磁钢73上的副华司75，所述低音振动系统3包括设于所述副华司75上的低音振膜33，所述低音音圈31驱动所述低音振膜33振动发声。在一实施例中，副华司75远离所述第二磁间隙74的一端设置有第二安装台阶(未标示)，低音振动系统3还包括设置于所述第二安装台阶上的低音安装环35，低音振膜33包括由内至外依次设置的中心部、折环部和连接部，所述连接部固设在所述低音安装环35上，通过将低音安装环35设置在副华司75远离第二磁间隙74的端部，最大程度的增加低音振膜33的面积，提升发声装置100的响度。
请参阅图2和图3，在一实施例中，所述发声装置100还包括盖设于磁轭5靠近低音振动系统3一侧的前盖9，前盖9上开设有多个出音孔，所述发声装置100还包括与低音振膜33相对设置的无源振膜91，无源振膜91的边沿固定在前盖9上，当低音振膜33振动时，流动的空气推动无源振膜91一并振动，从而提高音质。
请参阅图4，所述低音振膜33和所述磁轭5之间围成低音后腔，所述磁轭5上开设有出音孔54连通所述低音后腔和外部空间。具体地，出音孔54开设于通气槽552的槽底壁523和靠近所述第一磁间隙72的槽侧壁521上，第一固定座551和第二固定座553具有一定的高度差，使得高音安装环15设置在一槽侧壁521的端部，副磁钢73与槽底壁523背离开口的一侧，第一磁间隙72通过设置在槽侧壁521或槽底壁523的出音孔54与外部空间连通。低音振膜33振动，推动气流通过与高音振膜13同侧开设的出音孔出音，从而实现低音振膜33和高音振膜13从发声装置100的同侧发声。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (10)

  1. 一种发声装置，其特征在于，所述发声装置包括：
    高音振动系统和低音振动系统；
    磁轭，包括底壁和自所述底壁向靠近所述高音振动系统延伸的侧壁，所述低音振动系统和所述高音振动系统分设于所述磁轭的相对两侧；
    磁路系统，包括设于所述底壁上的主磁钢，所述主磁钢靠近所述高音振动系统的一端设置有避让台阶，所述高音振动系统的高音音圈插入所述避让台阶和所述侧壁围成的第一磁间隙内。
  2. 如权利要求1所述的发声装置，其特征在于，所述主磁钢包括设于所述底壁上的第一磁钢和设于所述第一磁钢上的第二磁钢，沿所述高音音圈的振动方向，所述第一磁钢的横截面积大于和所述第二磁钢的横截面积，所述第二磁钢与所述侧壁相对的第二侧面、所述第一磁钢朝向所述高音振动系统的顶面、以及所述侧壁围成所述第一磁间隙。
  3. 如权利要求2所述的发声装置，其特征在于，所述第一磁钢包括与所述顶面相对设置的底面、以及连接所述底面和所述顶面的第一侧面，所述底面与所述底壁连接，所述第一侧面与所述侧壁抵接。
  4. 如权利要求1所述的发声装置，其特征在于，所述磁轭还包括自所述侧壁向远离所述主磁钢方向延伸的安装部，所述高音振动系统包括固设于所述安装部上的高音振膜，所述高音音圈驱动所述高音振膜振动发声。
  5. 如权利要求4所述的发声装置，其特征在于，所述高音振膜为平面金属振膜。
  6. 如权利要求4所述的发声装置，其特征在于，所述高音振动系统还包括设于所述安装部上的高音安装环，所述高音振膜的边沿固设于所述高音安装环上。
  7. 如权利要求1至6中任一项所述的发声装置，其特征在于，所述磁路系统还包括绕所述主磁钢设置的副磁钢，所述副磁钢和所述主磁钢分设于所述侧壁的两侧，所述低音振动系统的低音音圈插入所述副磁钢和所述侧壁之间围成的第二磁间隙。
  8. 如权利要求7所述的发声装置，其特征在于，所述副磁钢设于所述安装部上，所述副磁钢和所述高音振膜分设于所述安装部的相对两侧。
  9. 如权利要求8所述的发声装置，其特征在于，所述磁路系统还包括设于所述副磁钢上的副华司，所述低音振动系统包括设于所述副华司上的低音振膜，所述低音音圈驱动所述低音振膜振动发声。
  10. 如权利要求9所述的发声装置，其特征在于，所述低音振膜和所述磁轭之间形成低音后腔，所述磁轭上开设有出音孔连通所述低音后腔和外部空间。
PCT/CN2021/136542 2021-04-23 2021-12-08 发声装置 WO2022222489A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110444266.5A CN113194390A (zh) 2021-04-23 2021-04-23 发声装置
CN202110444266.5 2021-04-23

Publications (1)

Publication Number Publication Date
WO2022222489A1 true WO2022222489A1 (zh) 2022-10-27

Family

ID=76978304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/136542 WO2022222489A1 (zh) 2021-04-23 2021-12-08 发声装置

Country Status (2)

Country Link
CN (1) CN113194390A (zh)
WO (1) WO2022222489A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113194390A (zh) * 2021-04-23 2021-07-30 歌尔股份有限公司 发声装置
CN114666714B (zh) * 2022-04-02 2023-08-29 歌尔股份有限公司 发声装置和电子设备
CN218387875U (zh) * 2022-08-30 2023-01-24 瑞声光电科技(常州)有限公司 一种同轴扬声器
CN218387878U (zh) * 2022-08-30 2023-01-24 瑞声光电科技(常州)有限公司 一种同轴扬声器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9210513B1 (en) * 2014-07-18 2015-12-08 Huiyang Dongmei Audio Products Co., Ltd. Multiple-ring coaxial audio speaker using single audio source
CN208675521U (zh) * 2018-07-30 2019-03-29 常州阿木奇声学科技有限公司 双动圈扬声器
CN111164989A (zh) * 2017-11-20 2020-05-15 宝星甲子股份有限公司 混合扬声器
CN111836159A (zh) * 2020-09-21 2020-10-27 歌尔股份有限公司 发声模组
CN113194390A (zh) * 2021-04-23 2021-07-30 歌尔股份有限公司 发声装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60202397T2 (de) * 2001-05-08 2005-06-16 Matsushita Electric Industrial Co., Ltd., Kadoma Lautsprecher und Mobilendgerät
CN201360339Y (zh) * 2008-12-17 2009-12-09 歌尔声学股份有限公司 微型动圈式电声转换器
JP2016015530A (ja) * 2012-11-13 2016-01-28 パナソニック株式会社 スピーカおよびこのスピーカを用いた電子機器、移動体装置
CN105848065B (zh) * 2016-05-31 2019-02-15 歌尔股份有限公司 扬声器
CN205847591U (zh) * 2016-07-18 2016-12-28 瑞声科技(新加坡)有限公司 扬声器
CN207732978U (zh) * 2017-12-22 2018-08-14 深圳君泽电子有限公司 微型扬声器
CN109996156A (zh) * 2018-01-03 2019-07-09 于新浩 全频振动扬声器系统及具备本系统的电子设备
CN108600920A (zh) * 2018-01-08 2018-09-28 深圳市韶音科技有限公司 一种骨传导扬声器
CN208638655U (zh) * 2018-08-04 2019-03-22 瑞声科技(新加坡)有限公司 扬声器模组
CN209526862U (zh) * 2018-12-29 2019-10-22 瑞声科技(新加坡)有限公司 发声器件
CN110996229A (zh) * 2019-12-09 2020-04-10 上海创功通讯技术有限公司 一种扬声器及电子设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9210513B1 (en) * 2014-07-18 2015-12-08 Huiyang Dongmei Audio Products Co., Ltd. Multiple-ring coaxial audio speaker using single audio source
CN111164989A (zh) * 2017-11-20 2020-05-15 宝星甲子股份有限公司 混合扬声器
CN208675521U (zh) * 2018-07-30 2019-03-29 常州阿木奇声学科技有限公司 双动圈扬声器
CN111836159A (zh) * 2020-09-21 2020-10-27 歌尔股份有限公司 发声模组
CN113194390A (zh) * 2021-04-23 2021-07-30 歌尔股份有限公司 发声装置

Also Published As

Publication number Publication date
CN113194390A (zh) 2021-07-30

Similar Documents

Publication Publication Date Title
WO2022222489A1 (zh) 发声装置
JP3144230B2 (ja) 低音再生スピーカ
US10362386B2 (en) Loudspeaker enclosure with a sealed acoustic suspension chamber
WO2022166388A1 (zh) 发声装置和耳机
WO2022166385A1 (zh) 发声装置和耳机
WO2022166383A1 (zh) 发声装置和耳机
WO2021174569A1 (zh) 扬声器
WO2022166389A1 (zh) 发声单元、发声模组和耳机
WO2022143209A1 (zh) 发声单体和耳机
KR101848735B1 (ko) 막대자석을 이용한 멀티 음역 재생이 가능한 스피커
WO2024045234A1 (zh) 电路及发声器件
WO2024000693A1 (zh) 同轴扬声器
US7515724B2 (en) Loudspeaker driver
KR100769885B1 (ko) 전자음향변환기
CN112104956A (zh) 被动辐射器和包含被动辐射器的电声装置
JPH11262085A (ja) スピーカ装置
KR102190412B1 (ko) 마이크로 스피커
US20220303669A1 (en) Instrument speaker cabinet with active and passive radiator speakers
US20240073604A1 (en) Circuit and Sounding Device Incorporating Same
CN214675665U (zh) 赫姆霍兹制动腔体喇叭
KR101087493B1 (ko) 평판 디스플레이에 내장된 자기변형 스피커
JP3921831B2 (ja) スピーカ装置
JP2002165291A (ja) スピーカ
WO2024044920A1 (zh) 同轴扬声器
WO2024044924A1 (zh) 同轴扬声器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21937711

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21937711

Country of ref document: EP

Kind code of ref document: A1