WO2020029646A1 - 扬声器 - Google Patents

扬声器 Download PDF

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Publication number
WO2020029646A1
WO2020029646A1 PCT/CN2019/088096 CN2019088096W WO2020029646A1 WO 2020029646 A1 WO2020029646 A1 WO 2020029646A1 CN 2019088096 W CN2019088096 W CN 2019088096W WO 2020029646 A1 WO2020029646 A1 WO 2020029646A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
groove
side wall
frame
short
Prior art date
Application number
PCT/CN2019/088096
Other languages
English (en)
French (fr)
Inventor
张古清
令狐荣林
Original Assignee
瑞声声学科技(深圳)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.)
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Application filed by 瑞声声学科技(深圳)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2020029646A1 publication Critical patent/WO2020029646A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • 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
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the utility model relates to the field of acoustic-electric conversion, in particular to a speaker applied to a portable electronic product.
  • the speaker of the related art includes a basin frame, a magnetic circuit system and a vibration system accommodated in the basin frame, the magnetic circuit system is used for driving the vibration system to generate sound, and the magnetic circuit system includes a magnetic frame and a magnetic frame assembled on the magnetic frame and connected with the magnetic frame.
  • the magnetic steel forms a magnetic gap with a magnetic frame.
  • the vibration system includes a diaphragm for vibrating and sounding, and a voice coil connected to the diaphragm at one end and inserted into the magnetic gap at the other end.
  • the voice coil is passed through a current through the voice coil.
  • the Lorentz force in the magnetic field vibrates and drives the diaphragm to make sound.
  • the speaker in the related art does not have a positioning structure on the magnetic frame, which makes it difficult to determine the position of the magnetic frame during assembly. Once the magnetic frame assembly position is deviated, the relative position of the magnetic steel and the voice coil will change, which affects Sound effects of speakers.
  • the technical problem to be solved by the utility model is to provide a speaker which is easy to assemble.
  • the present invention provides a speaker, which includes a vibration system, a magnetic circuit system for driving the vibration system to generate sound, and a basin frame for fixing the magnetic circuit system.
  • the magnetic circuit The system includes a magnetic frame and a magnetic steel housed in the magnetic frame.
  • the magnetic frame includes a bottom wall connected to the magnetic steel, a side wall formed by bending and extending from the bottom wall to the vibration system, and A positioning projection extending from the outside of the side wall toward the direction of the basin frame, the positioning protrusion abuts a surface of the basin frame away from the vibration system for positioning.
  • the positioning boss is a convex structure formed from the sidewall die.
  • the magnetic frame further includes a groove formed when the convex structure is formed by a die, and the groove is opposite to the positioning boss.
  • the side wall includes a pair of short side walls and a pair of long side walls opposite to each other, and the long side wall and the short side wall meet each other end to end to form the side wall, and the positioning A boss is disposed on one side of the short side wall near the basin frame.
  • two positioning bosses are provided, and the two positioning bosses are respectively located on the two short side walls and are symmetrically arranged.
  • the basin frame includes two opposite long-axis sides and two short-axis sides connecting the two long-axis sides, and the positioning boss abuts the short-axis side.
  • the short-axis side and the long-axis side are located on different planes, and a distance of a side of the short-axis side abutting the positioning boss from the vibration system is smaller than that of the long-axis side from the vibration. The distance of the system.
  • the groove includes a groove bottom wall directly opposite the magnetic steel and groove side walls extending from the opposite sides of the groove bottom wall in the direction of the magnetic steel, respectively, and the groove side walls are symmetrically disposed. On both sides of the bottom wall of the groove.
  • the groove side walls located on opposite sides of the groove bottom wall are parallel to each other, and the size of the groove is consistent with the shape of the positioning boss.
  • the speaker provided by the present utility model is provided with the positioning protrusion on the side wall of the magnetic frame to abut the basin frame, so that when the magnetic frame is assembled, the magnetic frame It is easier to determine the mounting position, thereby reducing the mounting difficulty of the magnetic frame, making the mounting position of the yoke less likely to deviate, and thereby improving the sound effect of the speaker; and by adjusting the positioning boss at The position on the side wall to adjust the position of the magnetic frame in the vibration direction of the vibration system.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a speaker of the present invention
  • FIG. 2 is a schematic exploded structure diagram of a speaker of the present invention
  • FIG. 3 is a schematic diagram of a three-dimensional structure of the magnetic frame shown in FIG. 2;
  • FIG. 4 is a sectional view taken along line A-A shown in FIG. 1;
  • Fig. 5 is a sectional view taken along line B-B shown in Fig. 1.
  • the present invention provides a speaker 100 including a magnetic circuit system 10, a vibration system 20, a basin frame 30 to which the magnetic circuit system 10 is fixed, and a frame body to which the vibration system 20 is fixed. 40 and a flexible circuit board 50 connected to the vibration system 20.
  • the magnetic circuit system 10 is used to drive the vibration system 20 to generate sound.
  • the frame 40 is sleeved and fixed to the outside of the basin frame 30.
  • the magnetic circuit system 10 includes a magnetic frame 11 fixed to the basin frame 30 and a magnetic steel 12 provided in the magnetic frame 11.
  • the magnetic frame 11 includes a bottom wall 111 connected to the magnetic steel 12, a side wall 112 formed by bending and extending from the bottom wall 111 to the vibration system 20, and A positioning protrusion 113 is formed on the outer side of the side wall 112 and extends toward the basin frame 30.
  • the side wall 112 includes a pair of short side walls 1121 and a pair of long side walls 1122.
  • two ends of the two short side walls 1121 are respectively connected to the two long side walls 1122, and the two short side walls 1121 and the two long side walls 1122 are connected end to end to form a rectangular ring structure.
  • the positioning protrusion 113 abuts on the surface of the basin frame 30 away from the vibration system 20.
  • the positioning boss 113 is a convex structure formed by die-molding from the side wall 112.
  • the magnetic frame 11 further includes a groove 114 formed when the convex structure is die-formed.
  • the inner side of the side wall 112 is recessed toward the positioning boss 113, and the groove 114 is disposed opposite to the positioning boss 113.
  • the groove 114 includes a groove bottom wall 1141 facing the magnetic steel 12 and groove side walls 1142 extending from the opposite sides of the groove bottom wall 1141 in the direction of the magnetic steel 12 respectively.
  • the walls 1142 are symmetrically disposed on both sides of the groove bottom wall 1141.
  • the groove side walls 1142 on opposite sides of the groove bottom wall 1141 are parallel to each other, and the size of the groove 114 is consistent with the shape of the positioning boss 113.
  • the positioning bosses 113 and the grooves 114 are respectively provided.
  • the two positioning bosses 113 are respectively located on the two short side walls 1121 and are symmetrically arranged.
  • the two grooves 114 respectively correspond to the two.
  • the positioning boss 113 is provided. Specifically, the positioning boss 113 and the groove 114 are located at a middle position of the short side wall 1121.
  • the positioning protrusion 113 by providing the positioning protrusion 113, the installation difficulty of the magnetic frame 11 is reduced, so that the magnetic frame 11 is not easily deviated when it is installed on the basin frame 30.
  • the position of the magnetic frame 11 in the vibration direction of the vibration system 20 can be adjusted by changing the position of the positioning boss 113 on the side wall 112.
  • the positioning boss 113 by providing the positioning boss 113, the connection stability between the magnetic frame 11 and the basin frame 30 is also increased.
  • the magnetic frame 11 further includes notches 115 provided on the magnetic frame 11.
  • the notches 115 are provided in two, and the two notches 115 are respectively located at the middle positions of the long side walls 1122.
  • the notch 115 includes a first portion 1151 provided through the long side wall 1122 and a second portion 1152 formed by being recessed from the bottom wall 111.
  • the first portion 1151 is in communication with the second portion 1152, and the second portion A portion 1152 is recessed from a side of the bottom wall 111 close to the vibration system 20 and away from the vibration system 20.
  • the magnetic steel 12 is spaced from the sidewall 112 to form a magnetic gap.
  • the magnetic steel 12 is provided with avoidance grooves 121 which are recessed from the side of the magnetic steel 12 close to the side wall 112 in a direction away from the side wall 112.
  • the avoidance grooves 121 are disposed directly opposite the two first portions 1151, and the orthographic projections of the two avoidance grooves 121 onto the bottom wall 111 coincide with the second portion 1152.
  • the vibration system 20 includes a diaphragm 21 for vibrating sound and a voice coil 22 for driving the diaphragm 21 to vibrate.
  • the diaphragm 21 is fixedly connected to the frame 40, and the voice coil 22 is inserted into the diaphragm. Mentioned magnetic gap.
  • the basin frame 30 is fixedly connected to the frame body 40 and is disposed on a side of the frame body 40 away from the vibration system 20.
  • the basin frame 30 includes two long-axis sides 31 and two short-axis sides 32 connecting the two long-axis sides 31, and the two short-axis sides 32 correspond to the two positioning bosses 113 and are close to the diaphragm 21 respectively.
  • One side abuts, that is, the positioning boss 113 abuts the surface of the short-axis side 32 away from the diaphragm 21.
  • the long-axis side 31 and the short-axis side 32 are located on different planes.
  • the short-axis side 32 is disposed higher than the long-axis side 31.
  • a distance of a side of the short-axis side 32 abutting the positioning boss 113 from the vibration system 20 is smaller than a distance of the long-axis side 31 from the vibration system 20.
  • the frame body 40 has a rectangular ring structure.
  • the flexible circuit board 50 is connected to the voice coil 22 for communicating the voice coil 22 with an external circuit.
  • the flexible circuit board 50 is housed in a space surrounded by the frame body 40 and the basin frame 30 and abuts against the basin frame 30.
  • the flexible circuit board 50 includes a main body portion 51 abutting the basin frame 30 and an extension portion 52 extending from the main body portion 51 toward the voice coil 22 and connected to the voice coil 22.
  • the number of the flexible circuit boards 50 is two, the two body portions 51 are respectively spaced from the two long side walls 1122, and the two extension portions 52 are respectively inserted into the two notches 115 and Extending into the two avoidance grooves 121 and correspondingly connected to the voice coil 22 respectively.
  • the speaker provided by the present utility model is provided with the positioning protrusion on the side wall of the magnetic frame to abut the basin frame, so that when the magnetic frame is assembled, the magnetic frame It is easier to determine the mounting position, thereby reducing the mounting difficulty of the magnetic frame, making the mounting position of the yoke less likely to deviate, and thereby improving the sound effect of the speaker; and by adjusting the positioning boss at The position on the side wall to adjust the position of the magnetic frame in the vibration direction of the vibration system.

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

Abstract

本实用新型提供了一种扬声器，其包括振动系统、用于驱动所述振动系统振动发声的磁路系统和用于固定所述磁路系统的盆架，所述磁路系统包括磁框及收容于所述磁框内的磁钢，所述磁框包括与所述磁钢连接的底壁、自所述底壁向所述振动系统方向弯折延伸形成的侧壁及自所述侧壁的外侧向靠近所述盆架方向延伸形成的定位凸台，所述定位凸台抵接所述盆架远离所述振动系统的表面进行定位。与相关技术相比，本实用新型提供的扬声器装配时更加便捷。

Description

扬声器 技术领域
本实用新型涉及声电转换领域，尤其涉及一种运用于便携式电子产品的扬声器。
 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，用于播放声音的扬声器被大量应用到现在的智能移动设备之中。
相关技术的扬声器包括盆架、收容于所述盆架内的磁路系统及振动系统，磁路系统用于驱动振动系统振动发声，磁路系统包括磁框及装配于所述磁框上且与磁框形成磁间隙的磁钢，振动系统包括用于振动发声的振膜及与一端与振膜连接且另一端插入磁间隙内的音圈，通过在音圈上通入电流从而使得音圈在磁场中受到洛伦兹力发生振动，并带动振膜振动发声。
然而，相关技术中的扬声器由于磁框上未设置定位结构，使得磁框在装配时位置不容易确定，一旦磁框装配位置发生偏差则会导致磁钢与音圈的相对位置发生变化，从而影响扬声器的发声效果。
因此，有必要提供一种新的扬声器来解决上述问题。
 技术问题
本实用新型要解决的技术问题是提供一种便于装配的扬声器。
 技术解决方案
为解决上述技术问题，本实用新型提供了一种扬声器，其包括振动系统、用于驱动所述振动系统振动发声的磁路系统和用于固定所述磁路系统的盆架，所述磁路系统包括磁框及收容于所述磁框内的磁钢，所述磁框包括与所述磁钢连接的底壁、自所述底壁向所述振动系统方向弯折延伸形成的侧壁及自所述侧壁的外侧向靠近所述盆架方向延伸形成的定位凸台，所述定位凸台抵接所述盆架远离所述振动系统的表面进行定位。
优选的，所述定位凸台为自所述侧壁冲模成型的凸起结构。
优选的，所述磁框还包括冲模成型所述凸起结构时形成的凹槽，所述凹槽与所述定位凸台相对。
优选的，所述侧壁包括相对设置的一对短侧壁和相对设置的一对长侧壁，所述长侧壁和所述短侧壁首尾相接围成所述侧壁，所述定位凸台设于所述短侧壁靠近所述盆架一侧。
优选的，所述定位凸台设有两个，两所述定位凸台分别位于两所述短侧壁上且对称设置。
优选的，所述盆架包括两相对设置的长轴边及连接两所述长轴边的两短轴边，所述定位凸台与所述短轴边抵接。
优选的，所述短轴边与所述长轴边位于不同平面，所述短轴边抵接所述定位凸台的一侧相对所述振动系统的距离小于所述长轴边相对所述振动系统的距离。
优选的，所述凹槽包括与所述磁钢正对的槽底壁以及自所述槽底壁的相对两侧分别朝所述磁钢方向延伸的槽侧壁，所述槽侧壁对称设置在所述槽底壁的两侧。
优选的，位于所述槽底壁相对两侧的所述槽侧壁相互平行，所述凹槽的尺寸与所述定位凸台的形状一致。
 有益效果
与相关技术相比，本实用新型提供的扬声器在所述磁框的所述侧壁上设置所述定位凸台与所述盆架抵接，使得在装配所述磁框时，所述磁框的安装位置更容易确定，从而减少了所述磁框的安装难度使得所述磁轭的安装位置不容易发生偏差，进而提升了所述扬声器的发声效果；并且可通过调节所述定位凸台在所述侧壁上的位置，从而实现调节所述磁框在所述振动系统的振动方向上的位置。
 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为本实用新型扬声器的立体结构示意图；
图2为本实用新型扬声器的分解结构示意图；
图3为图2所示磁框的立体结构示意图；
图4为沿图1所示A-A线的剖视图；
图5为沿图1所示B-B线的剖视图。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请参阅图1和图2，本实用新型提供了一种扬声器100，其包括磁路系统10、振动系统20、固定所述磁路系统10的盆架30、固定所述振动系统20的框体40及与所述振动系统20连接的柔性电路板50。所述磁路系统10用于驱动所述振动系统20振动发声，所述框体40套设固定于所述盆架30的外侧。
所述磁路系统10包括固定于所述盆架30的磁框11及设于所述磁框11内的磁钢12。
请结合参阅图3和图4，所述磁框11包括与所述磁钢12连接的底壁111、自所述底壁111向所述振动系统20方向弯折延伸形成的侧壁112及自所述侧壁112外侧向靠近所述盆架30方向延伸形成的定位凸台113。
所述侧壁112包括相对设置的一对短侧壁1121和相对设置的一对长侧壁1122。本实施例中两所述短侧壁1121两端分别与两所述长侧壁1122连接，两所述短侧壁1121与两所述长侧壁1122首尾相接共同围成矩形环状结构。当然，在其他实施例中所述短侧壁1121与所述长侧壁1122之间也可无连接关系，即所述短侧壁1121与所述长侧壁1122之间可存在间隙。
所述定位凸台113与所述盆架30远离所述振动系统20的表面抵接定位。所述定位凸台113为自所述侧壁112冲模成型的凸起结构，具体的，所述磁框11还包括冲模成型所述凸起结构时形成的凹槽114，所述凹槽114自所述侧壁112内侧向所述定位凸台113凹陷形成，所述凹槽114相对所述定位凸台113设置。
所述凹槽114包括与所述磁钢12正对的槽底壁1141以及自所述槽底壁1141的相对两侧分别朝所述磁钢12方向延伸的槽侧壁1142，所述槽侧壁1142对称设置在所述槽底壁1141的两侧。
位于所述槽底壁1141相对两侧的所述槽侧壁1142相互平行，所述凹槽114的尺寸与所述定位凸台113的形状一致。
所述定位凸台113与所述凹槽114分别设有两个，两所述定位凸台113分别位于两所述短侧壁1121上且对称设置，两所述凹槽114分别对应两所述定位凸台113设置。具体的，所述定位凸台113与所述凹槽114位于所述短侧壁1121的中间位置。
可以理解的是，通过设置所述定位凸台113减少了所述磁框11的安装难度，使得所述磁框11安装于所述盆架30上时不容易发生偏差。同时可通过改变所述定位凸台113在所述侧壁112上的位置实现磁框11在所述振动系统20振动方向上的位置的调整。并且通过设置所述定位凸台113也增加了所述磁框11与所述盆架30之间的连接稳定性。
请结合参阅图3和图5。所述磁框11还包括设于所述磁框11上的缺口115，所述缺口115设有两个，两所述缺口115分别对应位于所述长侧壁1122的中间位置。
所述缺口115包括贯穿所述长侧壁1122设置的第一部分1151及自所述底壁111凹陷形成的第二部分1152，所述第一部分1151与所述第二部分1152连通，所述第二部分1152自所述底壁111靠近所述振动系统20一侧向远离所述振动系统20方向凹陷形成。
请继续参阅图2。所述磁钢12与所述侧壁112间隔设置形成磁间隙。
所述磁钢12上设有自所述磁钢12靠近所述侧壁112一侧向远离所述侧壁112方向凹陷形成的避让槽121 ，所述避让槽121设有两个，两所述避让槽121正对两所述第一部分1151设置，且两所述避让槽121向所述底壁111上的正投影与所述第二部分1152重合。
所述振动系统20包括用于振动发声的振膜21及用于驱动所述振膜21振动的音圈22，所述振膜21与所述框体40固定连接，所述音圈22插入所述磁间隙中。
所述盆架30与所述框体40固定连接的，且设于所述框体40远离所述振动系统20一侧。所述盆架30包括两长轴边31及连接两所述长轴边31的两短轴边32，两所述短轴边32分别对应与两所述定位凸台113靠近所述振膜21一侧抵接，即所述定位凸台113与所述短轴边32远离所述振膜21的表面抵接。
具体的，所述长轴边31与所述短轴边32位于不同平面上。在本实施例中，沿所述底壁111至所述振膜21方向，所述短轴边32高于所述长轴边31设置。具体的，所述短轴边32抵接所述定位凸台113的一侧相对所述振动系统20的距离小于所述长轴边31相对所述振动系统20的距离。
所述框体40呈矩形环状结构。
所述柔性电路板50与所述音圈22连接用于将所述音圈22与外界电路连通。
所述柔性电路板50收容于所述框体40与所述盆架30围成的空间内并与所述盆架30抵接。
所述柔性电路板50包括与所述盆架30抵接的本体部51及自所述本体部51向靠近所述音圈22方向延伸并与所述音圈22连接的延伸部52。具体的，所述柔性电路板50的数量为两个，两所述本体部51分别与两所述长侧壁1122间隔正对设置，两所述延伸部52分别对应插入两所述缺口115且分别对应延伸入两所述避让槽121中并分别与所述音圈22连接。
与相关技术相比，本实用新型提供的扬声器在所述磁框的所述侧壁上设置所述定位凸台与所述盆架抵接，使得在装配所述磁框时，所述磁框的安装位置更容易确定，从而减少了所述磁框的安装难度使得所述磁轭的安装位置不容易发生偏差，进而提升了所述扬声器的发声效果；并且可通过调节所述定位凸台在所述侧壁上的位置，从而实现调节所述磁框在所述振动系统的振动方向上的位置。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (9)

  1. 一种扬声器，其包括振动系统、用于驱动所述振动系统振动发声的磁路系统和用于固定所述磁路系统的盆架，所述磁路系统包括磁框及收容于所述磁框内的磁钢，其特征在于，所述磁框包括与所述磁钢连接的底壁、自所述底壁向所述振动系统方向弯折延伸形成的侧壁及自所述侧壁的外侧向靠近所述盆架方向延伸形成的定位凸台，所述定位凸台抵接所述盆架远离所述振动系统的表面进行定位。
  2. 根据权利要求1所述的扬声器，其特征在于，所述定位凸台为自所述侧壁冲模成型的凸起结构。
  3. 根据权利要求2所述的扬声器，其特征在于，所述磁框还包括冲模成型所述凸起结构时形成的凹槽，所述凹槽与所述定位凸台相对。
  4. 根据权利要求1所述的扬声器，其特征在于，所述侧壁包括相对设置的一对短侧壁和相对设置的一对长侧壁，所述长侧壁和所述短侧壁首尾相接围成所述侧壁，所述定位凸台设于所述短侧壁靠近所述盆架一侧。
  5. 根据权利要求4所述的扬声器，其特征在于，所述定位凸台设有两个，两所述定位凸台分别位于两所述短侧壁上且对称设置。
  6. 根据权利要求1所述的扬声器，其特征在于，所述盆架包括两相对设置的长轴边及连接两所述长轴边的两短轴边，所述定位凸台与所述短轴边抵接。
  7. 根据权利要求6所述的扬声器，其特征在于，所述短轴边与所述长轴边位于不同平面，所述短轴边抵接所述定位凸台的一侧相对所述振动系统的距离小于所述长轴边相对所述振动系统的距离。
  8. 根据权利要求3所述的扬声器，其特征在于，所述凹槽包括与所述磁钢正对的槽底壁以及自所述槽底壁的相对两侧分别朝所述磁钢方向延伸的槽侧壁，所述槽侧壁对称设置在所述槽底壁的两侧。
  9. 根据权利要求8所述的扬声器，其特征在于，位于所述槽底壁相对两侧的所述槽侧壁相互平行，所述凹槽的尺寸与所述定位凸台的形状一致。
PCT/CN2019/088096 2018-08-05 2019-05-23 扬声器 WO2020029646A1 (zh)

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