WO2020029641A1 - 扬声器 - Google Patents

扬声器 Download PDF

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Publication number
WO2020029641A1
WO2020029641A1 PCT/CN2019/088077 CN2019088077W WO2020029641A1 WO 2020029641 A1 WO2020029641 A1 WO 2020029641A1 CN 2019088077 W CN2019088077 W CN 2019088077W WO 2020029641 A1 WO2020029641 A1 WO 2020029641A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
groove
frame
side wall
positioning
Prior art date
Application number
PCT/CN2019/088077
Other languages
English (en)
French (fr)
Inventor
张古清
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.)
Filing date
Publication date
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 WO2020029641A1 publication Critical patent/WO2020029641A1/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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • 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
    • 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
    • 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
    • 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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

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 vibration system includes a diaphragm for vibrating sound 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 placed in a magnetic field by passing a current through the voice coil. The Lorentz force will cause vibration and drive 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. At the same time, when the positioning structure is extruded on the magnetic frame, a corresponding groove is formed inside the magnetic frame. When the groove formed on the magnetic frame has the same shape as the positioning structure, the distance between the surface of the groove and the surface of the positioning structure is too close. Will affect the strength of the positioning structure.
  • 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 fixed in the basin frame and a magnetic steel contained in the magnetic frame.
  • the magnetic frame includes a bottom wall connected to the magnetic steel, and a direction from the bottom wall to the vibration system.
  • the groove formed by the depression in the direction of the magnetic steel corresponds to the positioning boss, and the positioning boss abuts the surface of the basin frame away from the vibration system for positioning, and the size of the groove is toward The direction away from the magnetic steel gradually decreases.
  • 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 side wall includes a pair of short side walls disposed opposite each other, a pair of long side walls connecting the two short side walls, and a gap between the adjacent short side wall and the long side wall, A die is formed on the short side wall to form the positioning boss and the groove.
  • the two positioning protrusions are located on the two short side walls and are symmetrically arranged.
  • the two grooves correspond to the two positioning protrusions. Table setting.
  • 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 side of the short-axis side away from the vibration system.
  • the short-axis side and the long-axis side are located on different planes, and a distance between a side of the short-axis side close to the positioning boss and the vibration system is smaller than the long-axis side.
  • a distance between an end of the positioning boss far from the side wall and the bottom wall of the groove is greater than a wall thickness of the side wall.
  • the maximum distance between the side walls of the groove is less than or equal to the thickness of the positioning boss along the vibration direction of the vibration system.
  • the loudspeaker provided by the present utility model punches the positioning boss and the groove on the side wall of the magnetic frame, and the size of the groove faces away from the magnetic steel.
  • the installation position of the magnetic frame is easier to determine, thereby reducing the magnetic
  • the mounting difficulty of the frame makes it difficult for the mounting position of the magnetic frame to deviate, thereby improving the sound effect of the speaker; and the position of the positioning boss on the side wall can be adjusted to adjust the 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 partially enlarged view of a region B shown in FIG. 4.
  • 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 The positioning protrusion 113 formed on the side wall 112 by die-casting and protruding from the side wall 112 and close to the basin frame 30 side and away from the magnetic steel from the surface of the side wall 112 near the magnetic steel 12
  • the groove 114 formed by the 12-direction depression.
  • the groove 114 corresponds to the positioning boss 113, and the side wall 112 is spaced from the magnetic steel 12 to form a magnetic gap.
  • the side wall 112 includes a pair of short side walls 1121, a pair of long side walls 1122 connecting the two short side walls 1121, and a pair of short side walls 1121 and the long side walls 1122.
  • the four gaps 1123 are provided.
  • the positioning protrusion 113 is located on the side close to the basin frame 30, the groove 114 is located on the side far from the basin frame 30, and the groove 114 is directly opposite the positioning protrusion 113. That is, the positioning boss 113 is a convex structure formed from the outside of the side wall 112, and the groove 114 is a concave structure formed from the inside of the side wall 112.
  • a cross-sectional area of the groove 114 gradually decreases from a direction away from the positioning boss 113 toward a direction closer to the positioning boss 113. That is, the size of the groove 114 gradually decreases away from the magnetic steel 12.
  • the groove 114 is in the shape of a pyramid.
  • the surfaces constituting the groove 114 are all inclined and inclined toward the center of the positioning boss 113. Inclining toward the center of the positioning boss 113 causes the distance between the surface and the surface closest to the positioning boss 113 to increase, thereby increasing the groove 114 and the positioning boss.
  • the wall thickness between 113 further increases the structural strength of the positioning bosses 113.
  • the groove 114 includes a groove bottom wall 1141 facing the magnetic steel 12 and a groove side wall 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.
  • a distance between an end of the positioning boss 113 far from the side wall 112 and the groove bottom wall 1141 is greater than a wall thickness of the side wall 112.
  • the maximum distance between the groove side walls 1142 is less than or equal to the thickness of the positioning boss 113 along the vibration direction of the vibration system 20. In this embodiment, the maximum distance between the groove side walls 1142 is equal to The thickness of the positioning boss 113 along the vibration direction of the vibration system 20.
  • the groove 114 is in the shape of a pyramid.
  • 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 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 side 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.
  • the distance between the side of the short-axis side 32 near the positioning boss 113 and the vibration system 20 is smaller than the long-axis side 31.
  • 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 an elastic arm 51 abutting the basin frame 30, a fixing portion 52 fixedly connected to the voice coil 22, and a connecting portion 53 connecting the elastic arm 51 and the fixing portion 52.
  • Four connecting portions 53 are provided, and the four connecting portions 53 respectively connect the elastic arm 51 and the fixing portion 52 through the four notches 1123.
  • the loudspeaker provided by the present utility model punches the positioning boss and the groove on the side wall of the magnetic frame, and the size of the groove faces away from the magnetic steel.
  • the installation position of the magnetic frame is easier to determine, thereby reducing the magnetic
  • the mounting difficulty of the frame makes it difficult for the mounting position of the magnetic frame to deviate, thereby improving the sound effect of the speaker; and the position of the positioning boss on the side wall can be adjusted to adjust the The position of the magnetic frame in the vibration direction of the vibration system.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (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***、用于驱动所述振动***振动发声的磁路***和用于固定所述磁路***的盆架，所述磁路***包括固定于所述盆架内的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***方向弯折延伸形成的侧壁、自所述侧壁冲模成型形成的凸出所述侧壁并向所述盆架靠近的定位凸台和自所述侧壁朝向所述磁钢的表面向远离所述磁钢方向凹陷形成的凹槽，所述凹槽与所述定位凸台对应，所述定位凸台抵接所述盆架远离所述振动***的表面进行定位，所述凹槽的尺寸朝远离所述磁钢的方向逐渐减小。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***及振动***，磁路***用于驱动振动***振动发声，磁路***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***包括用于振动发声的振膜及一端与振膜连接且另一端***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。同时在磁框上挤压成型定位结构时，磁框内部会形成对应的凹槽，当磁框上形成的凹槽与定位结构形状相同时，凹槽表面与定位结构表面之间的距离过近会影响到定位结构的强度。
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***、用于驱动所述振动***振动发声的磁路***和用于固定所述磁路***的盆架，所述磁路***包括固定于所述盆架内的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***方向弯折延伸形成的侧壁、自所述侧壁冲模成型形成的凸出所述侧壁并向所述盆架靠近的定位凸台和自所述侧壁朝向所述磁钢的表面向远离所述磁钢方向凹陷形成的凹槽，所述凹槽与所述定位凸台对应，所述定位凸台抵接所述盆架远离所述振动***的表面进行定位，所述凹槽的尺寸朝远离所述磁钢的方向逐渐减小。
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，所述侧壁包括相对设置的一对短侧壁、连接两所述短侧壁的一对长侧壁及位于相邻所述短侧壁与所述长侧壁之间的缺口，在所述短侧壁上冲模成型形成所述定位凸台和所述凹槽。
优选的，所述定位凸台和所述凹槽均设有两个，两所述定位凸台分别位于两所述短侧壁上且对称设置，两所述凹槽分别对应两所述定位凸台设置。
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远离所述振动***一侧抵接。
优选的，所述短轴边与所述长轴边位于不同平面，所述短轴边靠近所述定位凸台的一侧与所述振动***之间的距离小于所述长轴边。
优选的，所述定位凸台远离所述侧壁的一端与所示槽底壁之间的距离大于所述侧壁的壁厚。
优选的，所述槽侧壁之间的最大距离小于或等于所述定位凸台沿所述振动***振动方向的厚度。
 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冲模成型所述定位凸台和所述凹槽，所述凹槽的尺寸朝远离所述磁钢的方向逐渐减小，增加了所述定位凸台的结构强度；同时，在所述扬声器装配时，由于设置有所述定位凸台，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框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***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为图4所示B区域的局部放大图。
 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***10、振动***20、固定所述磁路***10的盆架30、固定所述振动***20的框体40及与所述振动***20连接的柔性电路板50。所述磁路***10用于驱动所述振动***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***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至图5，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***20方向弯折延伸形成的侧壁112及自所述侧壁112冲模成型形成的凸出所述侧壁112且靠近所述盆架30一侧的定位凸台113和自所述侧壁112靠近所述磁钢12表面向远离所述磁钢12方向凹陷形成的凹槽114。所述凹槽114与所述定位凸台113对应，所述侧壁112与所述磁钢12间隔设置形成磁间隙。
所述侧壁112包括相对设置的一对短侧壁1121、连接两所述短侧壁1121的一对长侧壁1122及位于相邻所述短侧壁1121与所述长侧壁1122之间的四个缺口1123。
所述定位凸台113位于靠近所述盆架30一侧，所述凹槽114位于远离所述盆架30一侧，所述凹槽114与所述定位凸台113正对设置。即所述定位凸台113为自所述侧壁112外侧延伸形成的凸起结构，所述凹槽114为自所述侧壁112内侧凹陷形成的凹陷结构。
所述凹槽114自远离所述定位凸台113方向往靠近所述定位凸台113方向的截面面积逐渐减小。即所述凹槽114尺寸朝远离所述磁钢12方向逐渐减小。具体的，所述凹槽114呈棱台状。通过将所述凹槽114设置呈棱台状使得组成所述凹槽114的表面均为倾斜设置且均向靠近所述定位凸台113中心方向倾斜，由于组成所述凹槽114的表面均会往所述定位凸台113中心位置方向倾斜使得该表面与距离所述定位凸台113最近一侧表面之间的间隔距离会增大，从而加大了所述凹槽114与所述定位凸台113之间的壁厚，进而增加了所述定位凸台113的结构强度。
所述凹槽114包括与所述磁钢12正对的槽底壁1141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。
所述定位凸台113远离所述侧壁112的一端与所述槽底壁1141之间的距离大于所述侧壁112的壁厚。所述槽侧壁1142之间的最大距离小于或等于所述定位凸台113沿所述振动***20振动方向的厚度，在本实施例中，所述槽侧壁1142之间的最大距离等于所述定位凸台113沿所述振动***20振动方向的厚度。
优选地，所述凹槽114为正棱台状。
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***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。
所述振动***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***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***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的一侧抵接。
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靠近所述定位凸台113的一侧与所述振动***20之间的距离小于所述长轴边31。
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抵接的弹力臂51、与所述音圈22固定连接的固定部52及连接所述弹力臂51与所述固定部52的连接部53。所述连接部53设有四个，四个所述连接部53分别通过四个所述缺口1123将所述弹力臂51与所述固定部52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冲模成型所述定位凸台和所述凹槽，所述凹槽的尺寸朝远离所述磁钢的方向逐渐减小，增加了所述定位凸台的结构强度；同时，在所述扬声器装配时，由于设置有所述定位凸台，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框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***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 (8)

  1. 一种扬声器，其包括振动***、用于驱动所述振动***振动发声的磁路***和用于固定所述磁路***的盆架，所述磁路***包括固定于所述盆架内的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***方向弯折延伸形成的侧壁、自所述侧壁冲模成型形成的凸出所述侧壁并向所述盆架靠近的定位凸台和自所述侧壁朝向所述磁钢的表面向远离所述磁钢方向凹陷形成的凹槽，所述凹槽与所述定位凸台对应，所述定位凸台抵接所述盆架远离所述振动***的表面进行定位，所述凹槽的尺寸朝远离所述磁钢的方向逐渐减小。
  2. 根据权利要求1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。
  3. 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、连接两所述短侧壁的一对长侧壁及位于相邻所述短侧壁与所述长侧壁之间的缺口，在所述短侧壁上冲模成型形成所述定位凸台和所述凹槽。
  4. 根据权利要求3所述的扬声器，其特征在于，所述定位凸台和所述凹槽均设有两个，两所述定位凸台分别位于两所述短侧壁上且对称设置，两所述凹槽分别对应两所述定位凸台设置。
  5. 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远离所述振动***一侧抵接。
  6. 根据权利要求5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，所述短轴边靠近所述定位凸台的一侧与所述振动***之间的距离小于所述长轴边。
  7. 根据权利要求2所述的扬声器，其特征在于，所述定位凸台远离所述侧壁的一端与所述槽底壁之间的距离大于所述侧壁的壁厚。
  8. 根据权利要求2所述的扬声器，其特征在于，所述槽侧壁之间的最大距离小于或等于所述定位凸台沿所述振动***振动方向的厚度。
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