WO2021134184A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2021134184A1
WO2021134184A1 PCT/CN2019/129867 CN2019129867W WO2021134184A1 WO 2021134184 A1 WO2021134184 A1 WO 2021134184A1 CN 2019129867 W CN2019129867 W CN 2019129867W WO 2021134184 A1 WO2021134184 A1 WO 2021134184A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
circuit system
vibration
magnetic circuit
wall
Prior art date
Application number
PCT/CN2019/129867
Other languages
English (en)
French (fr)
Inventor
邵涛
顾小江
严绪东
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)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, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2019/129867 priority Critical patent/WO2021134184A1/zh
Publication of WO2021134184A1 publication Critical patent/WO2021134184A1/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

Definitions

  • the utility model relates to the field of electro-acoustic conversion, in particular to a sound-producing device applied to electronic sound box products.
  • the sound device is also known as a speaker or a horn, which is used in a speaker to convert audio signals into sound for playback.
  • the related art sounding device includes a basin frame, a vibration system respectively fixed to the basin frame, and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a voice coil inserted in the magnetic gap and fixed to the basin frame. The diaphragm, the voice coil vibrates under a magnetic field to drive the diaphragm to vibrate and produce sound.
  • the diaphragm strength of the sounding device is insufficient, the frequency band of the sounding device is narrow, and the sounding effect is not good.
  • the purpose of the utility model is to provide a sound generating device that expands the high frequency of the sound generating device and has a good sound effect.
  • the present invention provides a sound generating device, which includes a basin frame, a vibration system fixed to the basin frame and a magnetic circuit system with a magnetic gap, and the magnetic circuit system drives the vibration system to vibrate.
  • the vibration system includes a diaphragm fixed to the basin frame, a voice coil inserted into the magnetic gap to drive the diaphragm to vibrate, and a skeleton connecting the diaphragm and the voice coil,
  • the diaphragm includes a ring-shaped vibration part arranged around the magnetic circuit system, a ring-shaped first ring part arranged at one end of the vibration part away from the magnetic circuit system, and a ring-shaped first ring part arranged at the vibration part
  • a second ring-shaped second fold ring portion close to one end of the magnetic circuit system, the first fold ring portion surrounds the second fold ring portion and is spaced apart from each other, and the vibration portion is located between the first fold ring portion and the Between the second folding ring portions;
  • the first folding ring portion includes a ring-shaped first fixing portion attached to the vibrating portion, and a ring-shaped first fixing portion that is bent and extended in a direction away from the magnetic circuit system from the first fixing portion
  • the second folding ring portion includes a ring-shaped third fixed portion attached to the vibrating portion, and a ring-shaped second portion that is bent and extended from the third fixed portion in a direction close to the magnetic circuit system.
  • the main body of the two-folding ring portion and the fourth fixing portion extending from the second folding ring portion main body away from the third fixing portion to the magnetic circuit system and forming a ring shape, and the fourth fixing portion is fixed to the One end of the magnetic circuit system away from the basin frame;
  • the cross-section of the skeleton along the vibration direction of the vibration system is arc-shaped, and one end of the skeleton is fixed to the vibration part, and the other end is inclined from the vibration part to the magnetic circuit system and extends into the magnetic gap, And it is fixedly connected with the voice coil.
  • the cross section of the vibration part along the vibration direction of the vibration system is arc-shaped, and the height of the magnetic circuit system along the vibration direction of the diaphragm is higher than the vibration of the basin frame along the diaphragm.
  • the height of the direction is such that the vibrating part extends obliquely from the second folding ring part to the first folding ring part.
  • the main body of the second folding ring portion is formed by recessing the diaphragm away from the magnetic circuit system along the vibration direction of the vibration system.
  • the magnetic circuit system includes a magnetic bowl fixed to the basin frame, and a magnetic steel unit accommodating and fixed in the magnetic bowl, and the magnetic steel unit is spaced apart from the magnetic bowl and forms the magnetic gap .
  • the magnetic bowl includes a first magnetic bowl and a second magnetic bowl disposed directly opposite to the first magnetic bowl
  • the first magnetic bowl includes a first magnetic bowl bottom wall supported and fixed to the basin frame And a first magnetic bowl side wall that is bent and extended from the bottom wall of the first magnetic bowl in a direction close to the diaphragm
  • the second magnetic bowl includes a side wall that is arranged directly opposite to the bottom wall of the first magnetic bowl A second magnetic bowl bottom wall and a second magnetic bowl side wall that is bent and extended from the second magnetic bowl bottom wall in a direction close to the first magnetic bowl bottom wall and abuts the first magnetic bowl side wall
  • the magnetic steel unit is spaced apart from the side wall of the first magnetic bowl and the side wall of the second magnetic bowl to form the magnetic gap; the side wall of the first magnetic bowl and/or the side of the second magnetic bowl
  • the wall is provided with a relief groove passing through it, and the skeleton extends into the magnetic gap through the relief groove; the fourth fixing part is fixed on the bottom wall of the second magnetic bowl away from
  • the skeleton includes a skeleton body arranged around the magnetic circuit system and an extension wall extending from the skeleton body close to the inner periphery of the magnetic circuit system into the magnetic gap; the skeleton body extends along the The cross section of the vibration direction of the vibration system is an arc-shaped structure, and the extension wall extends into the magnetic gap through the relief groove and is connected with the voice coil.
  • the frame further includes a connecting wall in the magnetic gap and in a ring shape.
  • the extension wall is connected to the connecting wall and connected to the voice coil through the connecting wall.
  • the connecting wall is attached to an end of the voice coil close to the diaphragm.
  • the basin frame includes a bottom wall, an outer wall bent and extended away from the periphery of the magnetic circuit system from the bottom wall, and an inner wall bent and extended from the bottom wall close to the periphery of the magnetic circuit system, so
  • the outer wall is arranged around the inner wall and spaced apart from each other, the second fixing portion is fixed to the outer wall, the first magnetic bowl is supported and fixed to the inner wall, and the inner wall is partially embedded in the first magnetic bowl.
  • the sound generating device further includes a front cover covering an end of the magnetic circuit system away from the basin frame, and the fourth fixing part is sandwiched between the magnetic circuit system and the front cover.
  • the vibration system further includes an elastic element fixed to the basin frame, the elastic element is sleeved on the outside of the magnetic circuit system, and includes a fixed arm fixed to the basin frame and a fixed arm fixed to the basin frame. The arm extends toward the magnetic circuit system and surrounds the elastic arm of the magnetic circuit system.
  • one end of the frame is fixed to the vibrating part, and the other end is inclined from the vibrating part to the magnetic circuit system and extends into the magnetic gap, and is in contact with the
  • the voice coil is fixedly connected, and the cross section of the frame along the vibration direction of the vibration system is arc-shaped, which increases the strength of the frame and the entire vibration system, expands the high frequency band of the entire sound emitting device, and has a better sound effect.
  • Figure 1 is a schematic diagram of the three-dimensional structure of the sound generating device of the present invention.
  • Figure 2 is an exploded view of a part of the three-dimensional structure of the sound device of the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
  • Fig. 4 is a schematic diagram of the three-dimensional structure of the skeleton of the sound generating device of the present invention.
  • the present invention provides a sound generating device 100, which includes a basin frame 1, a vibration system 2 respectively fixed to the basin frame 1, a magnetic circuit system 3 with a magnetic gap 30, and a front cover 4.
  • the magnetic circuit system 3 drives the vibration system 2 to vibrate and produce sound.
  • the basin frame 1 includes a bottom wall 11, an outer wall 12 extending from the bottom wall 11 away from the periphery of the magnetic circuit system 3, and an outer wall 12 extending from the bottom wall 11 close to the magnetic circuit system 3.
  • the inner wall 13 is bent and extended on the periphery of the inner wall 13, the outer wall 12 is arranged around the inner wall 13 and spaced apart from each other, and the inner wall 13 is provided with protrusions 131 protruding toward the magnetic circuit system 3.
  • the vibration system 2 includes a diaphragm 21 fixed to the basin frame 1, a voice coil 22 inserted into the magnetic gap 30 to drive the diaphragm 21 to vibrate, and connect the diaphragm 21 and the voice coil 22 The frame 23 and the elastic member 24 fixed to the basin frame 1.
  • the diaphragm 21 includes a ring-shaped vibrating portion 211 arranged around the magnetic circuit system 3, a ring-shaped first folding ring portion 212 disposed at an end of the vibrating portion 211 away from the magnetic circuit system 3, and A ring-shaped second folding ring portion 213 disposed on the vibrating portion 211 close to one end of the magnetic circuit system 3, the first folding ring portion 212 surrounds the second folding ring portion 213 and is spaced apart from each other, the The vibrating part 211 is located between the first folding ring part 212 and the second folding ring part 213.
  • the first folding ring portion 212 includes a ring-shaped first fixing portion 2121 that is attached to the vibrating portion 211 and is bent and extended in a direction away from the magnetic circuit system 3 by the first fixing portion 2121.
  • the second fixing portion 2123 is fixed to the basin frame 1.
  • the second folding ring portion 213 includes a ring-shaped third fixing portion 2131 attached to the vibrating portion 211, bending and extending from the third fixing portion 2131 toward the magnetic circuit system 3 and forming a ring shape.
  • the second folding ring portion main body 2132 and the fourth fixing portion 2133 formed in a ring shape extending toward the magnetic circuit system 3 from the end of the second folding ring portion main body 2132 away from the third fixing portion 2131, so The fourth fixing portion 2133 is fixed to an end of the magnetic circuit system 3 away from the basin frame 1.
  • the cross-section of the frame 23 along the vibration direction of the vibration system 2 is arc-shaped, and one end of the frame 23 is fixed to the vibration part 211, and the other end is extended from the vibration part 211 to the magnetic circuit system 3 obliquely to the end. Inside the magnetic gap 30 and fixedly connected to the voice coil 22.
  • the frame 23 has an arc-shaped cross-section along the vibration direction of the vibration system 2, and one end is fixed to the vibration part 211, and the other end is obliquely extended to the magnetic circuit system 3 from the vibration part 211.
  • the magnetic gap 30 This structure enhances the strength of the vibration system 3 and expands the high frequency of the sound emitting device 100.
  • the diaphragm 21 has a double-folded ring structure, and the second folded-ring portion main body 2132 is formed by recessing the diaphragm 21 in a direction away from the magnetic circuit system 3 along the vibration direction of the vibration system 2.
  • the structure of the second folding ring main body 2132 avoids interference with the frame 23 during the vibration process, and increases the reliability of the diaphragm 21.
  • the skeleton 23 includes a skeleton body 231 arranged around the magnetic circuit system, an extension wall 232 extending from the skeleton body 231 close to the inner periphery of the magnetic circuit system 3 into the magnetic gap 30, and
  • the connecting wall 233 in the magnetic gap 30 is annular, and the cross section of the skeleton body 231 along the vibration direction of the vibration system 2 is an arc structure.
  • the connecting wall 233 is located in the magnetic gap 30 and connected to the voice coil 22, and the extension wall 232 is connected to the connecting wall 233 and connected to the voice coil 22 through the connecting wall 233, specifically
  • the connecting wall 233 is attached to one end of the voice coil 22 close to the diaphragm 21.
  • the cross section of the vibration part 211 along the vibration direction of the vibration system 2 is arc-shaped, and the height of the magnetic circuit system 3 along the vibration direction of the diaphragm 21 is higher than that of the basin frame 1 along the vibration direction.
  • the height of the vibration direction of the diaphragm 21 is such that the vibration portion 211 extends obliquely from the second folding ring portion 213 to the first folding ring portion 212, that is, the vibration portion 211 extends along the vibration system
  • the cross section of the vibration direction of 2 is an arc structure, which further enhances the strength of the vibration system 2 and expands the high frequency of the sound emitting device 100.
  • the elastic member 24 is sleeved on the outside of the magnetic circuit system 3, and includes a fixed arm 241 fixed to the basin frame 1 and extending from the fixed arm 241 to the magnetic circuit system 3. And surround the elastic arm 242 of the magnetic circuit system 3. Specifically, the fixed arm 241 is fixed to the outer wall 12.
  • the magnetic circuit system 3 adopts a split structure, and the efficiency of the magnetic circuit is higher. It includes a magnetic bowl 31 fixed to the basin frame 1 and a magnetic steel unit 32 accommodating and fixed in the magnetic bowl 31.
  • the magnetic steel unit 32 is spaced apart from the magnetic bowl 31 and forms the magnetic gap 30 .
  • the magnet unit 32 includes a first magnet 311 fixed to the magnetic bowl 31, a pole core 312 stacked on the first magnet 311, and a pole core 312 stacked on the pole core 312 away from the first magnet.
  • the second magnet 313 on the side of the steel 311.
  • the magnetic bowl 31 includes a first magnetic bowl 311 and a second magnetic bowl 312 disposed directly opposite to the first magnetic bowl 311.
  • the first magnetic bowl 311 includes a first magnetic bowl that is supported and fixed to the basin frame 1.
  • the bowl bottom wall 3111 and the first magnetic bowl side wall 3112 bent and extended from the first magnetic bowl bottom wall 3111 in the direction close to the diaphragm 21;
  • the second magnetic bowl 312 includes the first magnetic bowl
  • the second magnetic bowl bottom wall 3121 is arranged opposite to the bowl bottom wall 3111 and is bent and extended from the second magnetic bowl bottom wall 3121 to the direction close to the first magnetic bowl bottom wall 3111 and is connected to the first magnetic bowl bottom wall 3111.
  • the second magnetic bowl side wall 3122 against which the bowl side wall 3112 abuts, the magnetic steel unit 32 is spaced apart from the first magnetic bowl side wall 3112 and the second magnetic bowl side wall 3122 to form the magnetic gap 30.
  • the first magnetic bowl side wall 3112 and the second magnetic bowl side wall 3122 are provided with a relief groove 310 penetrating therethrough, and the first magnetic bowl side wall 3112 is provided corresponding to the protrusion 131 of the inner wall 13
  • the frame 23 extends into the magnetic gap 30 through the relief groove 310.
  • the extension wall 232 extends into the magnetic gap 30 through the relief groove 310 and is connected to the magnetic gap 30.
  • the voice coil 22 is connected; the fourth fixing portion 2133 is fixed to a side of the second magnetic bowl bottom wall 3121 away from the magnetic steel unit 32.
  • the front cover 4 is arranged at an end of the magnetic circuit system 3 away from the basin frame 1. Specifically, the fourth fixing portion 2133 is sandwiched between the magnetic circuit system 3 and the front cover 4, namely The fourth fixing portion 2133 is pressed by the front cover 4 on the side of the bottom wall 3121 of the second magnetic bowl far away from the magnetic steel unit 32 to play a sealing role.
  • the above structure enables the inner edge of the diaphragm 21 to be directly glued to the magnetic bowl 31 of the magnetic circuit system 3, which increases the effective vibration area (SD) and improves the loudness of the entire sound emitting device 100.
  • one end of the frame is fixed to the vibrating part, and the other end is inclined from the vibrating part to the magnetic circuit system and extends into the magnetic gap, and is in contact with the
  • the voice coil is fixedly connected, that is, the cross section of the frame along the vibration direction of the vibration system is arc-shaped, which increases the strength of the frame and the entire vibration system, expands the high frequency band of the entire sound device, and has a better sound effect .

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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

本申请提供了一种发声器件，其包括盆架、振动系统和磁路系统，振动系统包括振膜、音圈以及骨架，振膜包括振动部、第一折环部以及第二折环部；第一折环部包括贴设于振动部的第一固定部、由第一固定部弯折延伸的第一折环部主体以及由第一折环部主体延伸的第二固定部，第二固定部固定于盆架；第二折环部包括贴设于振动部的第三固定部、由第三固定部弯折延伸的第二折环部主体以及由第二折环部主体延伸的第四固定部，第四固定部固定于磁路系统顶端；骨架沿振动方向的横截面呈弧形，其一端固定于振动部，另一端由振动部向磁路系统倾斜延伸至磁间隙内，与音圈固定连接。与相关技术比，本申请的发声器件高频带更宽。

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、分别固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括插设于所述磁间隙的音圈以及固定于所述盆架的振膜，所述音圈在磁场下振动带动振膜振动发声。
 技术问题
然而，相关技术的发声器件中，所述发声器件的振膜强度不够，发声器件的频带较窄，发声效果不好。
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扩展发声器件高频以及发声效果好的发声器件。
为了达到上述目的，本实用新型提供了一种发声器件，其包括盆架以及分别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、插入于所述磁间隙以驱动所述振膜振动的音圈以及连接所述振膜与所述音圈的骨架，
所述振膜包括围绕所述磁路系统设置的呈环状的振动部、设置于所述振动部远离所述磁路系统一端的呈环状的第一折环部以及设置于所述振动部靠近所述磁路系统一端的呈环状的第二折环部，所述第一折环部环绕所述第二折环部且相互间隔，所述振动部位于所述第一折环部与所述第二折环部之间；
所述第一折环部包括贴设于所述振动部且呈环状的第一固定部、由所述第一固定部向远离所述磁路系统的方向弯折延伸且呈环状的第一折环部主体以及由所述第一折环部主体远离所述第一固定部的一端向远离所述磁路系统延伸且呈环状的第二固定部，所述第二固定部固定于所述盆架；
所述第二折环部包括贴设于所述振动部且呈环状的第三固定部、由所述第三固定部向靠近所述磁路系统的方向弯折延伸且呈环状的第二折环部主体以及由所述第二折环部主体远离所述第三固定部的一段向所述磁路系统延伸且呈环状的第四固定部，所述第四固定部固定于所述磁路系统远离所述盆架的一端；
所述骨架沿所述振动系统的振动方向的横截面呈弧形，且其一端固定于所述振动部，另一端由所述振动部向所述磁路系统倾斜延伸至所述磁间隙内，且与所述音圈固定连接。
优选的，所述振动部沿所述振动系统的振动方向的横截面呈弧形，所述磁路系统沿所述振膜的振动方向的高度高于所述盆架沿所述振膜的振动方向的高度，并使得所述振动部呈由所述第二折环部向所述第一折环部倾斜延伸。
优选的，所述第二折环部主体沿所述振动系统的振动方向由所述振膜向远离所述磁路系统凹陷形成。
优选的，所述磁路系统包括固定于所述盆架的磁碗、收容固定于所述磁碗内的磁钢单元，所述磁钢单元与所述磁碗间隔设置并形成所述磁间隙。
优选的，所述磁碗包括第一磁碗以及与所述第一磁碗正对设置的第二磁碗，所述第一磁碗包括支撑固定于所述盆架的第一磁碗底壁以及由所述第一磁碗底壁向所靠近所述振膜方向弯折延伸的第一磁碗侧壁；所述第二磁碗包括与所述第一磁碗底壁间隔正对设置的第二磁碗底壁以及自所述第二磁碗底壁向靠近所述第一磁碗底壁方向弯折延伸的并与所述第一磁碗侧壁相抵接的第二磁碗侧壁，所述磁钢单元与所述第一磁碗侧壁和所述第二磁碗侧壁间隔设置形成所述磁间隙；所述第一磁碗侧壁和/或所述第二磁碗侧壁设有贯穿其上的让位槽，所述骨架经所述让位槽延伸至所述磁间隙内；所述第四固定部固定于所述第二磁碗底壁远离所述磁钢单元的一侧。
优选的，所述骨架包括环绕所述磁路系统设置的骨架本体以及由所述骨架本体靠近所述磁路系统的内周缘向所述磁间隙内延伸的延伸壁；所述骨架本体沿所述振动系统的振动方向的横截面呈弧形结构，所述延伸壁经所述让位槽延伸至所述磁间隙内并与所述音圈连接。
优选的，所述骨架还包括位于所述磁间隙内且呈环状的连接壁所述延伸壁与所述连接壁连接并通过所述连接壁连接至所述音圈。
优选的，所述连接壁贴设于所述音圈靠近所述振膜的一端。
优选的，所述盆架包括底壁、由所述底壁远离所述磁路系统的周缘弯折延伸的外壁以及由所述底壁靠近所述磁路系统的周缘弯折延伸的内壁，所述外壁环绕所述内壁设置且相互间隔，所述第二固定部固定于所述外壁，所述第一磁碗支撑固定于所述内壁，所述内壁部分嵌入所述第一磁碗。
优选的，所述发声器件还包括盖设于所述磁路系统远离所述盆架一端的前盖，所述第四固定部夹设于所述磁路系统与所述前盖之间。
优选的，所述振动系统还包括固定于所述盆架的弹性件，所述弹性件套设于所述磁路系统的外侧，其包括固定于所述盆架的固定臂以及由所述固定臂向所述磁路系统延伸并环绕所述磁路系统的弹臂。
 有益效果
与相关技术相比，本实用新型的发声器件中，所述骨架一端固定于所述振动部，另一端由所述振动部向所述磁路系统倾斜延伸至所述磁间隙内，且与所述音圈固定连接，所述骨架沿所述振动系统的振动方向的横截面呈弧形结构，增加了骨架以及整个振动系统的强度，扩展了整个发声器件的高频带，发声效果更好。
 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为本实用新型发声器件的部分立体结构分解图；
图3为沿图1中A-A线的剖示图；
图4为本实用新型发声器件的骨架的立体结构示意图。
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。
请同时参阅图1-4，本实用新型提供了一种发声器件100，其包括盆架1、分别固定于所述盆架1的振动系统2和具有磁间隙30的磁路系统3、前盖4，所述磁路系统3驱动所述振动系统2振动发声。
本实施例中，所述盆架1包括底壁11、由所述底壁11远离所述磁路系统3的周缘弯折延伸的外壁12以及由所述底壁11靠近所述磁路系统3的周缘弯折延伸的内壁13，所述外壁12环绕所述内壁13设置且相互间隔，所述内壁13设有向所述磁路系统3凸出形成的凸块131。
所述振动系统2包括固定于所述盆架1的振膜21、插入于所述磁间隙30以驱动所述振膜21振动的音圈22、连接所述振膜21与所述音圈22的骨架23以及固定于所述盆架1的弹性件24。
所述振膜21包括围绕所述磁路系统3设置的呈环状的振动部211、设置于所述振动部211远离所述磁路系统3一端的呈环状的第一折环部212以及设置于所述振动部211靠近所述磁路系统3一端的呈环状的第二折环部213，所述第一折环部212环绕所述第二折环部213且相互间隔，所述振动部211位于所述第一折环部212与所述第二折环部213之间。
所述第一折环部212包括贴设于所述振动部211且呈环状的第一固定部2121、由所述第一固定部2121向远离所述磁路系统3的方向弯折延伸且呈环状的第一折环部主体2122以及由所述第一折环部主体2122远离所述第一固定部2121的一端向远离所述磁路系统3延伸且呈环状的第二固定部2123，所述第二固定部2123固定于所述盆架1。
所述第二折环部213包括贴设于所述振动部211且呈环状的第三固定部2131、由所述第三固定部2131向靠近所述磁路系统3弯折延伸且呈环状的第二折环部主体2132以及由所述第二折环部主体2132远离所述第三固定部2131的一端向所述磁路系统3延伸且呈环状的第四固定部2133，所述第四固定部2133固定于所述磁路系统3远离所述盆架1的一端。
所述骨架23沿所述振动系统2的振动方向的横截面呈弧形，且其一端固定于所述振动部211，另一端由所述振动部211向所述磁路系统3倾斜延伸至所述磁间隙30内，且与所述音圈22固定连接。
所述骨架23沿所述振动系统2的振动方向的横截面呈弧形结构，且一端固定于所述振动部211，另一端由所述振动部211向所述磁路系统3倾斜延伸至所述磁间隙30内。该结构增强了所述振动系统3的强度，扩展了发声器件100的高频。且所述振膜21呈双折环结构，所述第二折环部主体2132沿所述振动系统2的振动方向由所述振膜21向远离所述磁路系统3方向凹陷形成。所述第二折环部主体2132的结构设置避免了在振动过程中与所述骨架23干涉，增加了振膜21的可靠性。
具体的，所述骨架23包括环绕所述磁路系统设置的骨架本体231、由所述骨架本体231靠近所述磁路系统3的内周缘向所述磁间隙30内延伸的延伸壁232以及位于所述磁间隙30内且呈环状的连接壁233，所述骨架本体231沿所述振动系统2的振动方向的横截面呈弧形结构。所述连接壁233位于所述磁间隙30内并与所述音圈22连接，所述延伸壁232与所述连接壁233连接并通过所述连接壁233连接至所述音圈22，具体的，所述连接壁233贴设于所述音圈22靠近所述振膜21的一端。
具体的，所述振动部211沿所述振动系统2的振动方向的横截面呈弧形，所述磁路系统3沿所述振膜21的振动方向的高度高于所述盆架1沿所述振膜21的振动方向的高度，并使得所述振动部211呈由所述第二折环部213向所述第一折环部212倾斜延伸，即所述振动部211沿所述振动系统2的振动方向的横截面呈弧形结构，进一步增强了所述振动系统2的强度，扩展了发声器件100的高频。
本实施例中，所述弹性件24套设于所述磁路系统3的外侧，其包括固定于所述盆架1的固定臂241以及由所述固定臂241向所述磁路系统3延伸并环绕所述磁路系统3的弹臂242，具体的，所述固定臂241固定于所述外壁12。
本实施例中，所述磁路系统3采用分体结构，磁路效率更高。其包括固定于所述盆架1的磁碗31、收容固定于所述磁碗31内的磁钢单元32，所述磁钢单元32与所述磁碗31间隔设置并形成所述磁间隙30。所述磁钢单元32包括固定于所述磁碗31的第一磁钢311，叠设于所述第一磁钢311的极芯312以及叠设于所述极芯312远离所述第一磁钢311一侧的第二磁钢313。
所述磁碗31包括第一磁碗311以及与所述第一磁碗311正对设置的第二磁碗312，所述第一磁碗311包括支撑固定于所述盆架1的第一磁碗底壁3111以及由所述第一磁碗底壁3111向所靠近所述振膜21方向弯折延伸的第一磁碗侧壁3112；所述第二磁碗312包括与所述第一磁碗底壁3111间隔正对设置的第二磁碗底壁3121以及自所述第二磁碗底壁3121向靠近所述第一磁碗底壁3111方向弯折延伸的并与所述第一磁碗侧壁3112相抵接的第二磁碗侧壁3122，所述磁钢单元32与所述第一磁碗侧壁3112和所述第二磁碗侧壁3122间隔设置形成所述磁间隙30。所述第一磁碗侧壁3112和所述第二磁碗侧壁3122设有贯穿其上的让位槽310，且所述第一磁碗侧壁3112对应所述内壁13的凸块131设有缺口3110，所述凸块131置于所述缺口3110上使得所述内壁13部分嵌入所述第一磁碗311。本实施例中，所述骨架23经所述让位槽310延伸至所述磁间隙30内，具体的，所述延伸壁232经所述让位槽310延伸至所述磁间隙30内并与所述音圈22连接；所述第四固定部2133固定于所述第二磁碗底壁3121远离所述磁钢单元32的一侧。所述前盖4盖设于所述磁路系统3远离所述盆架1的一端，具体的，第四固定部2133夹设于所述磁路系统3和所述前盖4之间，即第四固定部2133被前盖4压设于所述第二磁碗底壁3121远离所述磁钢单元32的一侧，起密封作用。
上述结构使得所述振膜21的内侧边缘直接胶合在磁路系统3的磁碗31，增加了有效振动面积（SD），提高整个发声器件100的响度。
与相关技术相比，本实用新型的发声器件中，所述骨架一端固定于所述振动部，另一端由所述振动部向所述磁路系统倾斜延伸至所述磁间隙内，且与所述音圈固定连接，即所述骨架沿所述振动系统的振动方向的横截面呈弧形结构，增加了骨架以及整个振动系统的强度，扩展了整个发声器件的高频带，发声效果更好。
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 (11)

  1. 一种发声器件，其包括盆架以及分别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、插入于所述磁间隙以驱动所述振膜振动的音圈以及连接所述振膜与所述音圈的骨架，其特征在于，
    所述振膜包括围绕所述磁路系统设置的呈环状的振动部、设置于所述振动部远离所述磁路系统一端的呈环状的第一折环部以及设置于所述振动部靠近所述磁路系统一端的呈环状的第二折环部，所述第一折环部环绕所述第二折环部且相互间隔，所述振动部位于所述第一折环部与所述第二折环部之间；
    所述第一折环部包括贴设于所述振动部且呈环状的第一固定部、由所述第一固定部向远离所述磁路系统的方向弯折延伸且呈环状的第一折环部主体以及由所述第一折环部主体远离所述第一固定部的一端向远离所述磁路系统延伸且呈环状的第二固定部，所述第二固定部固定于所述盆架；
    所述第二折环部包括贴设于所述振动部且呈环状的第三固定部、由所述第三固定部向靠近所述磁路系统的方向弯折延伸且呈环状的第二折环部主体以及由所述第二折环部主体远离所述第三固定部的一端向所述磁路系统延伸且呈环状的第四固定部，所述第四固定部固定于所述磁路系统远离所述盆架的一端；
    所述骨架沿所述振动系统的振动方向的横截面呈弧形，且其一端固定于所述振动部，另一端由所述振动部向所述磁路系统倾斜延伸至所述磁间隙内，且与所述音圈固定连接。
  2. 根据权利要求1所述的发声器件，其特征在于，所述振动部沿所述振动系统的振动方向的横截面呈弧形，所述磁路系统沿所述振膜的振动方向的高度高于所述盆架沿所述振膜的振动方向的高度，并使得所述振动部呈由所述第二折环部向所述第一折环部倾斜延伸。
  3. 根据权利要求1所述的发声器件，其特征在于，所述第二折环部主体沿所述振动系统的振动方向由所述振膜向远离所述磁路系统凹陷形成。
  4. 根据权利要求1所述的发声器件，其特征在于，所述磁路系统包括固定于所述盆架的磁碗、收容固定于所述磁碗内的磁钢单元，所述磁钢单元与所述磁碗间隔设置并形成所述磁间隙。
  5. 根据权利要求4所述的发声器件，其特征在于，所述磁碗包括第一磁碗以及与所述第一磁碗正对设置的第二磁碗，所述第一磁碗包括支撑固定于所述盆架的第一磁碗底壁以及由所述第一磁碗底壁向所靠近所述振膜方向弯折延伸的第一磁碗侧壁；所述第二磁碗包括与所述第一磁碗底壁间隔正对设置的第二磁碗底壁以及自所述第二磁碗底壁向靠近所述第一磁碗底壁方向弯折延伸并与所述第一磁碗侧壁相抵接的第二磁碗侧壁，所述磁钢单元与所述第一磁碗侧壁和所述第二磁碗侧壁间隔设置形成所述磁间隙；所述第一磁碗侧壁和/或所述第二磁碗侧壁设有贯穿其上的让位槽，所述骨架经所述让位槽延伸至所述磁间隙内；所述第四固定部固定于所述第二磁碗底壁远离所述磁钢单元的一侧。
  6. 根据权利要求5所述的发声器件，其特征在于，所述骨架包括环绕所述磁路系统设置的骨架本体以及由所述骨架本体靠近所述磁路系统的内周缘向所述磁间隙内延伸的延伸壁；所述骨架本体沿所述振动系统的振动方向的横截面呈弧形结构，所述延伸壁经所述让位槽延伸至所述磁间隙内并与所述音圈连接。
  7. 根据权利要求6所述的发声器件，其特征在于，所述骨架还包括位于所述磁间隙内且呈环状的连接壁，所述延伸壁与所述连接壁连接并通过所述连接壁连接至所述音圈。
  8. 根据权利要求7所述的发声器件，其特征在于，所述连接壁贴设于所述音圈靠近所述振膜的一端。
  9. 根据权利要求5所述的发声器件，其特征在于，所述盆架包括底壁、由所述底壁远离所述磁路系统的周缘弯折延伸的外壁以及由所述底壁靠近所述磁路系统的周缘弯折延伸的内壁，所述外壁环绕所述内壁设置且相互间隔，所述第二固定部固定于所述外壁，所述第一磁碗支撑固定于所述内壁，所述内壁部分嵌入所述第一磁碗。
  10. 根据权利要求1所述的发声器件，其特征在于，所述发声器件还包括盖设于所述磁路系统远离所述盆架一端的前盖，所述第四固定部夹设于所述磁路系统与所述前盖之间。
  11. 根据权利要求1所述的发声器件，其特征在于，所述振动系统还包括固定于所述盆架的弹性件，所述弹性件套设于所述磁路系统的外侧，其包括固定于所述盆架的固定臂以及由所述固定臂向所述磁路系统延伸并环绕所述磁路系统的弹臂。
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JP2007243461A (ja) * 2006-03-07 2007-09-20 Yamaha Corp スピーカユニット
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