WO2021128047A1 - Sound producing device - Google Patents

Sound producing device Download PDF

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Publication number
WO2021128047A1
WO2021128047A1 PCT/CN2019/128201 CN2019128201W WO2021128047A1 WO 2021128047 A1 WO2021128047 A1 WO 2021128047A1 CN 2019128201 W CN2019128201 W CN 2019128201W WO 2021128047 A1 WO2021128047 A1 WO 2021128047A1
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WO
WIPO (PCT)
Prior art keywords
wall
magnetic
diaphragm
magnetic bowl
fixed
Prior art date
Application number
PCT/CN2019/128201
Other languages
French (fr)
Chinese (zh)
Inventor
邵涛
严绪东
顾小江
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/CN2019/128201 priority Critical patent/WO2021128047A1/en
Publication of WO2021128047A1 publication Critical patent/WO2021128047A1/en

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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 fixed to the basin frame, and a magnetic circuit system with a magnetic gap.
  • the magnetic circuit system drives the vibration system to vibrate and produce sound.
  • the vibration system includes a diaphragm and a plug.
  • a voice coil which is arranged in the magnetic gap and drives the diaphragm to vibrate and emit sound, an elastic support assembly fixed on the basin frame, and a skeleton for connecting the voice coil and the elastic support assembly.
  • the elastic support component is connected to the voice coil through the side wall of the frame, so that the elastic support component is indirectly connected to the voice coil, and the effect of suppressing the swing of the sounding device is limited.
  • the purpose of the utility model is to provide a sounding device that can effectively balance the amplitude, increase the stroke bearing limit, and has a better sounding effect.
  • the present invention provides a sound generating device, which includes a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound, the magnetic circuit system having a magnetic gap
  • the vibration system includes a diaphragm, a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound, an elastic support assembly fixed to the basin frame and spaced around the magnetic circuit system, and a connection
  • the centering support piece includes a body portion fixed to the diaphragm, and a direction away from the diaphragm from the body portion Extends and is fixed to the first extension wall of the elastic support assembly and is bent in the direction of the magnetic circuit system from the first extension wall, extends into the magnetic gap and is fixed to the voice coil away from the A second extension wall on one side of the diaphragm, the first extension wall is arranged around the outer
  • the second extension wall includes at least two spaced apart and symmetrically arranged on one side of the voice coil.
  • the elastic support assembly includes an elastic member and an auxiliary diaphragm attached to a side of the elastic member away from the diaphragm;
  • the elastic member includes a first fixed arm fixed to the basin frame, and The first fixed arm is spaced apart from the second fixed arm and the elastic arm connecting the first fixed arm and the second fixed arm; the first extension wall is fixed to the second fixed arm close to the One side of the diaphragm.
  • the elastic member further includes a positioning plate extending from a side of the second fixed arm away from the elastic arm toward the magnetic circuit system, and the positioning plate is directly opposite to the second extending wall.
  • the positioning plate directly faces the second extension wall with a positioning hole penetrating through it, and the orthographic projection of the second extension wall on the positioning plate at least partially falls into the positioning hole.
  • the magnetic circuit system includes a first magnetic bowl, a magnetic steel unit accommodated and fixed in the first magnetic bowl, and a relief slot that penetrates the first magnetic bowl and matches the second extension wall;
  • 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 bent and extended from the first magnetic bowl bottom wall in a direction close to the diaphragm,
  • the magnetic steel unit is fixed to the bottom wall of the first magnetic bowl and is spaced from the side wall of the first magnetic bowl to form the magnetic gap;
  • the relief groove penetrates the side wall of the first magnetic bowl and extends along the vibration direction of the diaphragm
  • the first extension wall is arranged around the outer side of the magnetic circuit system and arranged at intervals, and the second extension wall extends into the magnetic gap through the relief groove.
  • the basin frame includes a bottom wall, an outer wall bent and extended from the periphery of the bottom wall, and an inner wall bent and extended from the bottom wall.
  • the outer wall is arranged around the inner wall and is spaced apart from each other. Having a through opening extending therethrough, the through opening extending along the vibration direction;
  • the bottom wall and the inner wall jointly enclose an accommodating space, the magnetic circuit system is at least partially located in the accommodating space, and the relief groove and the opening are arranged one by one directly opposite;
  • the first extension wall is ringed on the outer side of the inner wall and arranged at intervals, and the second extension wall sequentially extends into the magnetic gap through the through opening and the relief groove.
  • the magnetic circuit system further includes a second magnetic bowl covering the magnetic steel unit, and the second magnetic bowl is arranged directly opposite to the first magnetic bowl; the second magnetic bowl includes a second magnetic bowl.
  • the bottom wall of the magnetic bowl and the side wall of the second magnetic bowl, the bottom wall of the second magnetic bowl and the bottom wall of the first magnetic bowl are arranged opposite to each other, and the magnetic steel unit is sandwiched on the bottom wall of the first magnetic bowl
  • the side wall of the second magnetic bowl between the second magnetic bowl and the bottom wall of the second magnetic bowl is bent and extended from the bottom wall of the second magnetic bowl toward the bottom wall of the first magnetic bowl, and the relief groove also penetrates The side wall of the second magnetic bowl.
  • the diaphragm is arranged around the outer periphery of the bottom wall of the second magnetic bowl, and the diaphragm includes a vibrating portion, a folding ring portion bent and extending from the periphery of the vibrating portion, and The fold extends and is fixed to the fixing part of the basin frame.
  • the fixing portion of the diaphragm includes a first fixing portion and a second fixing portion; the first fixing portion is ring-shaped and fixed to the outer wall, and the second fixing portion is ring-shaped and fixed On the inner wall;
  • the folding ring portion includes a first folding ring portion having a ring shape and a second folding ring portion having a ring shape.
  • the first folding ring portion surrounds the second folding ring portion and is spaced apart from each other;
  • the side of the ring portion away from the second folding ring portion is connected to the first fixing portion, and the side of the second folding ring portion away from the first folding ring portion is connected to the second fixing portion;
  • the vibrating part has a ring shape, the vibrating part is located between the first folding ring part and the second folding ring part, and the outer side of the vibrating part is connected with the first folding ring part, the The inner side of the vibrating part is connected with the second folding ring part;
  • the body part is attached to a side of the vibrating part close to the magnetic circuit system.
  • the sound generating device further includes a pressing ring arranged on a side of the inner wall away from the bottom wall, and the pressing ring presses the second fixing part on the top end of the inner wall.
  • the second extension wall is a conductive metal sheet
  • the elastic member is an FPC
  • the voice coil is electrically connected to the elastic member via the second extension wall.
  • the vibration system includes a centering support piece connected to the diaphragm, the elastic support assembly, and the voice coil;
  • the centering support piece includes The main body portion of the diaphragm, the first extension wall extending from the main portion in a direction away from the diaphragm and fixed to the elastic support component, and the first extension wall from the first extension wall toward the magnetic circuit system
  • the direction bends and extends into the magnetic gap and is attached to the second extension wall fixed on the side of the voice coil away from the diaphragm.
  • the first extension wall is arranged around the outer circumference of the voice coil and is connected to the second extension wall of the voice coil. Voice coil interval setting.
  • the structure effectively balances the amplitude, improves the stroke bearing limit, and makes the sound output of the sound device better; on the other hand, the structure strengthens the lateral rigidity of the vibration system and effectively balances the lateral swing of the vibration system , Improve the reliability of sound-producing devices.
  • 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 schematic diagram of the three-dimensional structure of the sound generating device of the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
  • Figure 4 is a schematic diagram of part of the three-dimensional structure of the utility model
  • Figure 5 is a schematic diagram of the three-dimensional structure of the centering support piece 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 supported on the basin frame 1, 2, a magnetic circuit system 3 that drives the vibration system 2 to vibrate and produce sound.
  • the magnetic circuit system 3 has a magnetic gap 30.
  • the basin frame 1 includes a bottom wall 11, an outer wall 12 bent and extended from the periphery of the bottom wall 11, and an inner wall 13 bent and extended from the bottom wall 11.
  • the outer walls 12 are arranged around the inner wall 13 and are spaced apart from each other.
  • the inner wall 13 is provided with a through opening 131 extending therethrough, the through opening 131 extends along the vibration direction, and the bottom wall 11 and the inner wall 13 jointly enclose a receiving space 10.
  • the vibration system 2 includes a diaphragm 21, a voice coil 22 inserted in the magnetic gap 30 to drive the diaphragm 21 to vibrate and produce sound, an elastic support assembly 23 fixed to the basin frame 1, and a connection with the vibration The membrane 21, the elastic support assembly 23 and the centering support piece 24 of the voice coil 22.
  • the diaphragm 21 includes a vibrating portion 211, a folding ring portion 212 bent and extending from the periphery of the vibrating portion 211, and a fixing device that is bent and extended by the folding ring portion 212 and fixed to the basin frame 1. ⁇ 213.
  • the fixing portion 213 includes a first fixing portion 2131 and a second fixing portion 2132; the first fixing portion 2131 is ring-shaped and fixed to the outer wall 12, and the second fixing portion 2132 is ring-shaped and It is fixed to the inner wall 13.
  • the folding ring portion 212 includes a first folding ring portion 2121 in a ring shape and a second folding ring portion 2122 in a ring shape.
  • the first folding ring portion 2121 surrounds the second folding ring portion 2122 and is spaced apart from each other;
  • the side of the first folding ring portion 2121 away from the second folding ring portion 2122 is connected to the first fixing portion 2131, and the side of the second folding ring portion 2122 away from the first folding ring portion 2121 Connected to the second fixing portion 2132.
  • the vibrating portion 211 has a ring shape, the vibrating portion 211 is located between the first folding ring portion 2121 and the second folding ring portion 2122, and the outer side of the vibrating portion 211 is connected to the first folding ring
  • the part 2121 is connected, and the inner side of the vibrating part 211 is connected with the second folding ring part 2122.
  • the elastic support assembly 23 is arranged around the inner wall 13, and the elastic support assembly 23 includes an elastic member 231 and an auxiliary diaphragm 232 attached to the side of the elastic member 231 away from the diaphragm 21; the elastic member 231 includes a first fixed arm 2311 fixed to the basin frame 1, a second fixed arm 2312 spaced apart from the first fixed arm 2311, and a connection connecting the first fixed arm 2311 and the second fixed arm 2312 Elastic arm 2313.
  • the elastic member 231 further includes a positioning plate 2314 extending from a side of the second fixed arm 2312 away from the elastic arm 2313 in the direction of the magnetic circuit system 3, and the positioning plate 2314 and The second extension wall 243 is directly opposite; the positioning plate 2314 is opposite to the second extension wall 243 and a positioning hole 2315 penetrates therethrough, and the orthographic projection of the second extension wall 243 on the positioning plate 2314 is at least partially Preferably, it completely falls into the positioning hole 2315.
  • the structure is used for positioning foolproof during assembly, effectively avoiding assembly errors, thereby improving production efficiency and product quality.
  • the centering support piece 24 includes a body portion 241 fixed to the diaphragm 21, a first extension bent and extended from the body portion 241 in a direction away from the diaphragm 21 and fixed to the elastic support component 23
  • the wall 242 and the second extension wall 242 bent in the direction of the magnetic circuit system 3 to extend into the magnetic gap 30 and fixed to the second side of the voice coil 22 away from the diaphragm 21
  • the first extension wall 242 is arranged around the outer circumference of the voice coil 22 and is spaced apart from the voice coil 22.
  • the centering support piece 24 is made of a metal material. Of course, it is not limited to this, and it can also be made of other conductive materials.
  • the second extension wall 243 is a conductive metal sheet
  • the elastic member 231 is an FPC
  • the voice coil 22 is electrically connected to the elastic member 231 via the second extension wall 243.
  • the body portion 241 is attached to the side of the vibrating portion 211 close to the magnetic circuit system 3; the first extension wall 242 is attached and fixed to the second fixed arm 2312 close to the diaphragm 21 side; the second extension wall 243 includes at least two spaced apart and symmetrically arranged on one side of the voice coil.
  • the vibration system 2 includes a centering support piece 24 that connects the diaphragm 21, the elastic support assembly 23, and the voice coil 22;
  • the centering support piece 24 includes a The main body portion 241 of the diaphragm 21, the first extension wall 242 extending from the main portion 241 in a direction away from the diaphragm 21 and fixed to the elastic support assembly 23, and the first extension wall 242 extending from the first extension wall 242
  • the magnetic circuit system is bent in the direction 3 to extend into the magnetic gap 30 and is attached and fixed to the second extension wall 243 on the side of the voice coil 22 away from the diaphragm 21.
  • this structure effectively balances the amplitude, improves the stroke bearing limit, and makes the sound output of the sound generating device 100 better; on the other hand, this structure strengthens the lateral rigidity of the vibration system 2 and effectively balances the vibration system 2 The lateral swing of, improves the reliability of the sound generating device 100.
  • the magnetic circuit system 3 is at least partially located in the accommodating space 10, and includes a first magnetic bowl 31, a magnetic steel unit 32 accommodating and fixing in the first magnetic bowl 31, penetrating the first magnetic bowl 31 and The recess 33 matching the second extension wall 243 and the second magnetic bowl 34 covering the magnetic steel unit 32.
  • the first magnetic bowl 31 includes a first magnetic bowl bottom wall 311 supported and fixed to the basin frame 1, and the first magnetic bowl bottom wall 311 is bent and extended toward the direction of the diaphragm 21.
  • the magnetic steel unit 32 is fixed to the bottom wall 311 of the first magnetic bowl and forms the magnetic gap 30 together with the side wall 312 of the first magnetic bowl.
  • the relief groove 33 penetrates the side wall 312 of the first magnetic bowl and extends along the vibration direction; the first extension wall 242 is arranged around the outer side of the magnetic circuit system 3 and is arranged at intervals, and the second extension The wall 243 extends into the magnetic gap 30 through the relief groove 33.
  • the second magnetic bowl 34 is arranged directly opposite to the first magnetic bowl 31; the second magnetic bowl 34 includes a second magnetic bowl bottom wall 341 and a second magnetic bowl side wall 342, and the second magnetic bowl
  • the bottom wall of the magnetic bowl 341 and the bottom wall of the first magnetic bowl 311 are arranged directly opposite each other, the diaphragm 21 is wound around the outer periphery of the bottom wall 341 of the second magnetic bowl, and the magnetic steel unit 32 is sandwiched between the Between the first magnetic bowl bottom wall 311 and the second magnetic bowl bottom wall 341, the second magnetic bowl side wall 342 approaches the first magnetic bowl bottom wall 311 from the second magnetic bowl bottom wall 341 Bending and extending in the direction, the relief groove 33 also penetrates the side wall 342 of the second magnetic bowl.
  • the relief groove 33 and the opening 131 of the inner wall 13 are arranged one by one; the first extension wall 242 is arranged on the outer side of the inner wall 13 and arranged at intervals, so The second extension wall 243 sequentially extends into the magnetic gap 30 through the opening 131 and the relief groove 33.
  • the pressure ring 4 is arranged on the inner wall 13 away from the bottom wall 11, and the pressure ring 4 presses the second fixing portion 2132 on the top end of the inner wall 13; this structure improves The overall rigidity of the sound emitting device is improved, and the stability of the sound emitting device is further improved.
  • the vibration system includes a centering support piece connected to the diaphragm, the elastic support assembly, and the voice coil;
  • the centering support piece includes The main body portion of the diaphragm, the first extension wall extending from the main portion in a direction away from the diaphragm and fixed to the elastic support component, and the first extension wall from the first extension wall toward the magnetic circuit system
  • the direction bends and extends into the magnetic gap and is attached to the second extension wall fixed on the side of the voice coil away from the diaphragm.
  • the first extension wall is arranged around the outer circumference of the voice coil and is connected to the second extension wall of the voice coil. Voice coil interval setting.
  • the structure effectively balances the amplitude, improves the stroke bearing limit, and makes the sound output of the sound device better; on the other hand, the structure strengthens the lateral rigidity of the vibration system and effectively balances the lateral swing of the vibration system , Improve the reliability of sound-producing devices.

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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

The present utility model provides a sound producing device, comprising a basket, a vibration system supported on the basket, and a magnetic circuit system that drives the vibration system to vibrate and produce sound. The magnetic circuit system is provided with a magnetic gap; the vibration system comprises a diaphragm, a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound, an elastic support assembly fixed to the basket and spaced apart from and arranged around the magnetic circuit system, and a centering support piece connected to the diaphragm, the elastic support assembly, and the voice coil; the centering support piece comprises a body portion fixed to the diaphragm, a first extension wall extending from the body portion in a direction away from the diaphragm and fixed to the elastic support assembly, and a second extension wall extending towards the magnetic circuit system from the first extension wall to the inside of the magnetic gap and fixed to the side of the voice coil away from the diaphragm; and the first extension wall is arranged around the outer circumference of the voice coil and is spaced apart from the voice coil. Compared with related arts, the sound producing device of the present invention can effectively balance the amplitude and increase the stroke bearing limit.

Description

发声器件Sound device 技术领域Technical field
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。The utility model relates to the field of electro-acoustic conversion, in particular to a sound-producing device applied to electronic sound box products.
背景技术Background technique
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。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.
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***和具有磁间隙的磁路***，所述磁路***驱动所述振动***振动发声，所述振动***包括振膜、插设与所述磁间隙内并驱动振膜振动发声的音圈、固定于所述盆架的弹性支撑组件以及连接音圈和弹性支撑组件骨架。The related art sounding device includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system with a magnetic gap. The magnetic circuit system drives the vibration system to vibrate and produce sound. The vibration system includes a diaphragm and a plug. A voice coil which is arranged in the magnetic gap and drives the diaphragm to vibrate and emit sound, an elastic support assembly fixed on the basin frame, and a skeleton for connecting the voice coil and the elastic support assembly.
技术问题technical problem
然而，相关技术的发声器件中，弹性支撑组件通过骨架的侧壁连接音圈，使弹性支撑组件间接的与音圈相连，抑制发声器件摇摆的效果有限。However, in the related art sounding device, the elastic support component is connected to the voice coil through the side wall of the frame, so that the elastic support component is indirectly connected to the voice coil, and the effect of suppressing the swing of the sounding device is limited.
因此，实有必要提供一种新的发声器件解决上述技术问题。Therefore, it is necessary to provide a new sound generating device to solve the above technical problems.
技术解决方案Technical solutions
本实用新型的目的在于提供一种能有效平衡振幅，提升冲程承载极限的，且出声效果更好的发声器件。The purpose of the utility model is to provide a sounding device that can effectively balance the amplitude, increase the stroke bearing limit, and has a better sounding effect.
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、支撑于所述盆架的振动***以及驱动所述振动***振动发声的磁路***，所述磁路***具有磁间隙，所述振动***包括振膜、插设于所述磁间隙内以驱动所述振膜振动发声的音圈、固定于所述盆架并间隔环绕于所述磁路***的弹性支撑组件以及连接所述振膜、所述弹性支撑组件以及所述音圈的定心支片；所述定心支片包括固定于所述振膜的本体部、由所述本体部向远离所述振膜方向延伸并固定于所述弹性支撑组件的第一延伸壁以及由所述第一延伸壁向所述磁路***方向弯折延伸至所述磁间隙内并贴合固定于所述音圈远离所述振膜一侧的第二延伸壁，所述第一延伸壁绕设在所述音圈外周并与所述音圈间隔设置。In order to achieve the above objective, the present invention provides a sound generating device, which includes a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound, the magnetic circuit system having a magnetic gap The vibration system includes a diaphragm, a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound, an elastic support assembly fixed to the basin frame and spaced around the magnetic circuit system, and a connection The diaphragm, the elastic support assembly, and the centering support piece of the voice coil; the centering support piece includes a body portion fixed to the diaphragm, and a direction away from the diaphragm from the body portion Extends and is fixed to the first extension wall of the elastic support assembly and is bent in the direction of the magnetic circuit system from the first extension wall, extends into the magnetic gap and is fixed to the voice coil away from the A second extension wall on one side of the diaphragm, the first extension wall is arranged around the outer circumference of the voice coil and is spaced apart from the voice coil.
优选的，所述第二延伸壁包括至少两个相互间隔且对称设置在所述音圈的一侧。Preferably, the second extension wall includes at least two spaced apart and symmetrically arranged on one side of the voice coil.
优选的，所述弹性支撑组件包括弹性件和贴设于所述弹性件远离所述振膜一侧的辅助振膜；所述弹性件包括固定于所述盆架的第一固定臂、与所述第一固定臂间隔设置的第二固定臂以及连接所述第一固定臂和所述第二固定臂的弹臂；所述第一延伸壁贴合固定于所述第二固定臂靠近所述振膜的一侧。Preferably, the elastic support assembly includes an elastic member and an auxiliary diaphragm attached to a side of the elastic member away from the diaphragm; the elastic member includes a first fixed arm fixed to the basin frame, and The first fixed arm is spaced apart from the second fixed arm and the elastic arm connecting the first fixed arm and the second fixed arm; the first extension wall is fixed to the second fixed arm close to the One side of the diaphragm.
优选的，所述弹性件还包括自所述第二固定臂远离所述弹臂的一侧朝所述磁路***方向延伸的定位板，所述定位板与所述第二延伸壁正对。Preferably, the elastic member further includes a positioning plate extending from a side of the second fixed arm away from the elastic arm toward the magnetic circuit system, and the positioning plate is directly opposite to the second extending wall.
优选的，所述定位板正对所述第二延伸壁贯穿开设有定位孔，所述第二延伸壁在所述定位板上的正投影至少部分落入所述定位孔内。Preferably, the positioning plate directly faces the second extension wall with a positioning hole penetrating through it, and the orthographic projection of the second extension wall on the positioning plate at least partially falls into the positioning hole.
优选的，所述磁路***包括第一磁碗、收容固定于所述第一磁碗内的磁钢单元以及贯穿所述第一磁碗并与所述第二延伸壁匹配的让位槽；Preferably, the magnetic circuit system includes a first magnetic bowl, a magnetic steel unit accommodated and fixed in the first magnetic bowl, and a relief slot that penetrates the first magnetic bowl and matches the second extension wall;
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，所述磁钢单元固定于所述第一磁碗底壁并与所述第一磁碗侧壁间隔形成所述磁间隙；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 bent and extended from the first magnetic bowl bottom wall in a direction close to the diaphragm, The magnetic steel unit is fixed to the bottom wall of the first magnetic bowl and is spaced from the side wall of the first magnetic bowl to form the magnetic gap;
所述让位槽贯穿所述第一磁碗侧壁并沿所述振膜的振动方向延伸；The relief groove penetrates the side wall of the first magnetic bowl and extends along the vibration direction of the diaphragm;
所述第一延伸壁环设于所述磁路***外侧且间隔设置，所述第二延伸壁经所述让位槽延伸至所述磁间隙内。The first extension wall is arranged around the outer side of the magnetic circuit system and arranged at intervals, and the second extension wall extends into the magnetic gap through the relief groove.
优选的，所述盆架包括底壁、由所述底壁周缘弯折延伸的外壁以及由所述底壁弯折延伸的内壁，所述外壁环绕所述内壁设置且相互间隔，所述内壁设有贯穿其上的通口，所述通口沿所述振动方向延伸； Preferably, the basin frame includes a bottom wall, an outer wall bent and extended from the periphery of the bottom wall, and an inner wall bent and extended from the bottom wall. The outer wall is arranged around the inner wall and is spaced apart from each other. Having a through opening extending therethrough, the through opening extending along the vibration direction;
所述底壁与所述内壁共同围成容纳空间，所述磁路***至少部分位于所述容纳空间内，且使得所述让位槽与所述通口一一正对设置；The bottom wall and the inner wall jointly enclose an accommodating space, the magnetic circuit system is at least partially located in the accommodating space, and the relief groove and the opening are arranged one by one directly opposite;
所述第一延伸壁环设于所述内壁外侧且间隔设置，所述第二延伸壁依次经所述通口和所述让位槽延伸至所述磁间隙内。The first extension wall is ringed on the outer side of the inner wall and arranged at intervals, and the second extension wall sequentially extends into the magnetic gap through the through opening and the relief groove.
优选的，所述磁路***还包括盖设于所述磁钢单元的第二磁碗，所述第二磁碗与所述第一磁碗正对设置；所述第二磁碗包括第二磁碗底壁和第二磁碗侧壁，所述第二磁碗底壁与所述第一磁碗底壁间隔正对设置，所述磁钢单元夹设于所述第一磁碗底壁与所述第二磁碗底壁之间所述第二磁碗侧壁由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，所述让位槽亦贯穿所述第二磁碗侧壁。Preferably, the magnetic circuit system further includes a second magnetic bowl covering the magnetic steel unit, and the second magnetic bowl is arranged directly opposite to the first magnetic bowl; the second magnetic bowl includes a second magnetic bowl. The bottom wall of the magnetic bowl and the side wall of the second magnetic bowl, the bottom wall of the second magnetic bowl and the bottom wall of the first magnetic bowl are arranged opposite to each other, and the magnetic steel unit is sandwiched on the bottom wall of the first magnetic bowl The side wall of the second magnetic bowl between the second magnetic bowl and the bottom wall of the second magnetic bowl is bent and extended from the bottom wall of the second magnetic bowl toward the bottom wall of the first magnetic bowl, and the relief groove also penetrates The side wall of the second magnetic bowl.
优选的，所述振膜绕设于所述第二磁碗底壁外周，所述振膜包括振动部、由所述振动部的周缘弯折延伸的折环部以及由所述折环部弯折延伸并固定于所述盆架的固定部。Preferably, the diaphragm is arranged around the outer periphery of the bottom wall of the second magnetic bowl, and the diaphragm includes a vibrating portion, a folding ring portion bent and extending from the periphery of the vibrating portion, and The fold extends and is fixed to the fixing part of the basin frame.
优选的，所述振膜的所述固定部包括第一固定部和第二固定部；所述第一固定部呈环状且固定于所述外壁，所述第二固定部呈环状且固定于所述内壁；Preferably, the fixing portion of the diaphragm includes a first fixing portion and a second fixing portion; the first fixing portion is ring-shaped and fixed to the outer wall, and the second fixing portion is ring-shaped and fixed On the inner wall;
所述折环部包括呈环状的第一折环部和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；所述第一折环部远离所述第二折环部的一侧与所述第一固定部连接，所述第二折环部远离所述第一折环部的一侧与所述第二固定部连接；The folding ring portion includes a first folding ring portion having a ring shape and a second folding ring portion having a ring shape. The first folding ring portion surrounds the second folding ring portion and is spaced apart from each other; The side of the ring portion away from the second folding ring portion is connected to the first fixing portion, and the side of the second folding ring portion away from the first folding ring portion is connected to the second fixing portion;
所述振动部呈环状，所述振动部位于所述第一折环部与所述第二折环部之间，且所述振动部的外侧与所述第一折环部连接，所述振动部的内侧与所述第二折环部连接；The vibrating part has a ring shape, the vibrating part is located between the first folding ring part and the second folding ring part, and the outer side of the vibrating part is connected with the first folding ring part, the The inner side of the vibrating part is connected with the second folding ring part;
所述本体部贴设于所述振动部靠近所述磁路***的一侧。The body part is attached to a side of the vibrating part close to the magnetic circuit system.
优选的，所述发声器件还包括盖设于所述内壁远离所述底壁一侧的压环，所述压环将所述第二固定部压设于所述内壁顶端。Preferably, the sound generating device further includes a pressing ring arranged on a side of the inner wall away from the bottom wall, and the pressing ring presses the second fixing part on the top end of the inner wall.
优选的，所述第二延伸壁为导电金属片，所述弹性件为FPC，所述音圈经所述第二延伸壁与所述弹性件电连接。Preferably, the second extension wall is a conductive metal sheet, the elastic member is an FPC, and the voice coil is electrically connected to the elastic member via the second extension wall.
有益效果Beneficial effect
与相关技术相比，本实用新型的发声器件中，所述振动***包括连接所述振膜、所述弹性支撑组件以及所述音圈的定心支片；所述定心支片包括固定于所述振膜的本体部、由所述本体部向远离所述振膜方向弯折延伸并固定于所述弹性支撑组件的第一延伸壁以及由所述第一延伸壁向所述磁路***方向弯折延伸至所述磁间隙内并贴合固定于所述音圈远离所述振膜一侧的第二延伸壁，所述第一延伸壁绕设在所述音圈外周并与所述音圈间隔设置。该结构一方面有效的平衡振幅，提升了冲程承载极限，使发声器件的出声效果更优；另一方面，该结构加强了振动***的横向刚度，有效的平衡了所述振动***的横向摇摆，提升了发声器件的可靠性。Compared with the related art, in the sound device of the present invention, the vibration system includes a centering support piece connected to the diaphragm, the elastic support assembly, and the voice coil; the centering support piece includes The main body portion of the diaphragm, the first extension wall extending from the main portion in a direction away from the diaphragm and fixed to the elastic support component, and the first extension wall from the first extension wall toward the magnetic circuit system The direction bends and extends into the magnetic gap and is attached to the second extension wall fixed on the side of the voice coil away from the diaphragm. The first extension wall is arranged around the outer circumference of the voice coil and is connected to the second extension wall of the voice coil. Voice coil interval setting. On the one hand, the structure effectively balances the amplitude, improves the stroke bearing limit, and makes the sound output of the sound device better; on the other hand, the structure strengthens the lateral rigidity of the vibration system and effectively balances the lateral swing of the vibration system , Improve the reliability of sound-producing devices.
附图说明Description of the drawings
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：In order to more clearly explain the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present utility model. For example, for those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:
图1为本实用新型发声器件的立体结构示意图；Figure 1 is a schematic diagram of the three-dimensional structure of the sound generating device of the present invention;
图2为本实用新型发声器件的立体结构分解示意图；Figure 2 is an exploded schematic diagram of the three-dimensional structure of the sound generating device of the present invention;
图3为沿图1中A-A线的剖示图；Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
图4为本实用新型的部分立体结构示意图；Figure 4 is a schematic diagram of part of the three-dimensional structure of the utility model;
图5为本实用新型发声器件定心支片的立体结构示意图。Figure 5 is a schematic diagram of the three-dimensional structure of the centering support piece of the sound generating device of the present invention.
本发明的实施方式Embodiments of the present invention
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。The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Examples. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model.
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、支撑于所述盆架1的振动***2、驱动所述振动***2振动发声的磁路***3以及压环4，所述磁路***3具有磁间隙30。Please refer to FIGS. 1-4 at the same time. The present invention provides a sound generating device 100, which includes a basin frame 1, a vibration system supported on the basin frame 1, 2, a magnetic circuit system 3 that drives the vibration system 2 to vibrate and produce sound. As well as the pressure ring 4, the magnetic circuit system 3 has a magnetic gap 30.
所述盆架1包括底壁11、由所述底壁11周缘弯折延伸的外壁12以及由所述底壁11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设有贯穿其上的通口131，所述通口131沿所述振动方向延伸，所述底壁11与所述内壁13共同围成容纳空间10。The basin frame 1 includes a bottom wall 11, an outer wall 12 bent and extended from the periphery of the bottom wall 11, and an inner wall 13 bent and extended from the bottom wall 11. The outer walls 12 are arranged around the inner wall 13 and are spaced apart from each other. The inner wall 13 is provided with a through opening 131 extending therethrough, the through opening 131 extends along the vibration direction, and the bottom wall 11 and the inner wall 13 jointly enclose a receiving space 10.
所述振动***2包括振膜21、插设于所述磁间隙30内以驱动所述振膜21振动发声的音圈22、固定于所述盆架1的弹性支撑组件23以及连接所述振膜21、所述弹性支撑组件23以及所述音圈22的定心支片24。The vibration system 2 includes a diaphragm 21, a voice coil 22 inserted in the magnetic gap 30 to drive the diaphragm 21 to vibrate and produce sound, an elastic support assembly 23 fixed to the basin frame 1, and a connection with the vibration The membrane 21, the elastic support assembly 23 and the centering support piece 24 of the voice coil 22.
具体的，所述振膜21包括振动部211、由所述振动部211的周缘弯折延伸的折环部212以及由所述折环部212弯折延伸并固定于所述盆架1的固定部213。Specifically, the diaphragm 21 includes a vibrating portion 211, a folding ring portion 212 bent and extending from the periphery of the vibrating portion 211, and a fixing device that is bent and extended by the folding ring portion 212 and fixed to the basin frame 1.部213.
进一步的，所述固定部213包括第一固定部2131和第二固定部2132；所述第一固定部2131呈环状且固定于所述外壁12，所述第二固定部2132呈环状且固定于所述内壁13。所述折环部212包括呈环状的第一折环部2121和呈环状的第二折环部2122，所述第一折环部2121环绕所述第二折环部2122且相互间隔；所述第一折环部2121远离所述第二折环部2122的一侧与所述第一固定部2131连接，所述第二折环部2122远离所述第一折环部2121的一侧与所述第二固定部2132连接。所述振动部211呈环状，所述振动部211位于所述第一折环部2121与所述第二折环部2122之间，且所述振动部211的外侧与所述第一折环部2121连接，所述振动部211的内侧与所述第二折环部2122连接。Further, the fixing portion 213 includes a first fixing portion 2131 and a second fixing portion 2132; the first fixing portion 2131 is ring-shaped and fixed to the outer wall 12, and the second fixing portion 2132 is ring-shaped and It is fixed to the inner wall 13. The folding ring portion 212 includes a first folding ring portion 2121 in a ring shape and a second folding ring portion 2122 in a ring shape. The first folding ring portion 2121 surrounds the second folding ring portion 2122 and is spaced apart from each other; The side of the first folding ring portion 2121 away from the second folding ring portion 2122 is connected to the first fixing portion 2131, and the side of the second folding ring portion 2122 away from the first folding ring portion 2121 Connected to the second fixing portion 2132. The vibrating portion 211 has a ring shape, the vibrating portion 211 is located between the first folding ring portion 2121 and the second folding ring portion 2122, and the outer side of the vibrating portion 211 is connected to the first folding ring The part 2121 is connected, and the inner side of the vibrating part 211 is connected with the second folding ring part 2122.
所述弹性支撑组件23环绕所述内壁13设置，所述弹性支撑组件23包括弹性件231和贴设于所述弹性件231远离所述振膜21一侧的辅助振膜232；所述弹性件231包括固定于所述盆架1的第一固定臂2311、与所述第一固定臂2311间隔设置的第二固定臂2312以及连接所述第一固定臂2311和所述第二固定臂2312的弹臂2313。The elastic support assembly 23 is arranged around the inner wall 13, and the elastic support assembly 23 includes an elastic member 231 and an auxiliary diaphragm 232 attached to the side of the elastic member 231 away from the diaphragm 21; the elastic member 231 includes a first fixed arm 2311 fixed to the basin frame 1, a second fixed arm 2312 spaced apart from the first fixed arm 2311, and a connection connecting the first fixed arm 2311 and the second fixed arm 2312 Elastic arm 2313.
在本实施方式中，所述弹性件231还包括自所述第二固定臂2312远离所述弹臂2313的一侧朝所述磁路***3方向延伸的定位板2314，所述定位板2314与所述第二延伸壁243正对；所述定位板2314正对所述第二延伸壁243贯穿开设有定位孔2315，所述第二延伸壁243在所述定位板2314上的正投影至少部分优选完全落入所述定位孔2315内。该结构用于组装时的定位防呆，有效的避免装配误差，从而提高了生产效率和产品质量。In this embodiment, the elastic member 231 further includes a positioning plate 2314 extending from a side of the second fixed arm 2312 away from the elastic arm 2313 in the direction of the magnetic circuit system 3, and the positioning plate 2314 and The second extension wall 243 is directly opposite; the positioning plate 2314 is opposite to the second extension wall 243 and a positioning hole 2315 penetrates therethrough, and the orthographic projection of the second extension wall 243 on the positioning plate 2314 is at least partially Preferably, it completely falls into the positioning hole 2315. The structure is used for positioning foolproof during assembly, effectively avoiding assembly errors, thereby improving production efficiency and product quality.
所述定心支片24包括固定于所述振膜21的本体部241、由所述本体部241向远离所述振膜21方向弯折延伸并固定于所述弹性支撑组件23的第一延伸壁242以及由所述第一延伸壁242向所述磁路***3方向弯折延伸至所述磁间隙30内并贴合固定于所述音圈22远离所述振膜21一侧的第二延伸壁243，所述第一延伸壁242绕设在所述音圈22外周并与所述音圈22间隔设置。The centering support piece 24 includes a body portion 241 fixed to the diaphragm 21, a first extension bent and extended from the body portion 241 in a direction away from the diaphragm 21 and fixed to the elastic support component 23 The wall 242 and the second extension wall 242 bent in the direction of the magnetic circuit system 3 to extend into the magnetic gap 30 and fixed to the second side of the voice coil 22 away from the diaphragm 21 An extension wall 243. The first extension wall 242 is arranged around the outer circumference of the voice coil 22 and is spaced apart from the voice coil 22.
在本实施方式中，所述定心支片24由金属材料制成，当然，不限于此，也可以由其它的导电材料制成。In this embodiment, the centering support piece 24 is made of a metal material. Of course, it is not limited to this, and it can also be made of other conductive materials.
更优的，所述第二延伸壁243为导电金属片，所述弹性件231为FPC，所述音圈22经所述第二延伸壁243与所述弹性件231电连接。More preferably, the second extension wall 243 is a conductive metal sheet, the elastic member 231 is an FPC, and the voice coil 22 is electrically connected to the elastic member 231 via the second extension wall 243.
具体的，所述本体部241贴设于所述振动部211靠近所述磁路***3的一侧；所述第一延伸壁242贴合固定于所述第二固定臂2312靠近所述振膜21的一侧；所述第二延伸壁243包括至少两个相互间隔且对称设置在所述音圈一侧。Specifically, the body portion 241 is attached to the side of the vibrating portion 211 close to the magnetic circuit system 3; the first extension wall 242 is attached and fixed to the second fixed arm 2312 close to the diaphragm 21 side; the second extension wall 243 includes at least two spaced apart and symmetrically arranged on one side of the voice coil.
在本实施方式中，所述振动***2包括连接所述振膜21、所述弹性支撑组件23以及所述音圈22的定心支片24；所述定心支片24包括固定于所述振膜21的本体部241、由所述本体部241向远离所述振膜21方向弯折延伸并固定于所述弹性支撑组件23的第一延伸壁242以及由所述第一延伸壁242向所述磁路***3方向弯折延伸至所述磁间隙30内并贴合固定于所述音圈22远离所述振膜21一侧的第二延伸壁243。该结构一方面有效的平衡振幅，提升了冲程承载极限，使发声器件100的出声效果更优；另一方面，该结构加强了振动***2的横向刚度，有效的平衡了所述振动***2的横向摇摆，提升了发声器件100的可靠性。In this embodiment, the vibration system 2 includes a centering support piece 24 that connects the diaphragm 21, the elastic support assembly 23, and the voice coil 22; the centering support piece 24 includes a The main body portion 241 of the diaphragm 21, the first extension wall 242 extending from the main portion 241 in a direction away from the diaphragm 21 and fixed to the elastic support assembly 23, and the first extension wall 242 extending from the first extension wall 242 The magnetic circuit system is bent in the direction 3 to extend into the magnetic gap 30 and is attached and fixed to the second extension wall 243 on the side of the voice coil 22 away from the diaphragm 21. On the one hand, this structure effectively balances the amplitude, improves the stroke bearing limit, and makes the sound output of the sound generating device 100 better; on the other hand, this structure strengthens the lateral rigidity of the vibration system 2 and effectively balances the vibration system 2 The lateral swing of, improves the reliability of the sound generating device 100.
所述磁路***3至少部分位于所述容纳空间10内，其包括第一磁碗31、收容固定于所述第一磁碗31内的磁钢单元32、贯穿所述第一磁碗31并与所述第二延伸壁243匹配的让位槽33以及盖设于所述磁钢单元32的第二磁碗34。The magnetic circuit system 3 is at least partially located in the accommodating space 10, and includes a first magnetic bowl 31, a magnetic steel unit 32 accommodating and fixing in the first magnetic bowl 31, penetrating the first magnetic bowl 31 and The recess 33 matching the second extension wall 243 and the second magnetic bowl 34 covering the magnetic steel unit 32.
具体的，所述第一磁碗31包括支撑固定于所述盆架1的第一磁碗底壁311以及由所述第一磁碗底壁311向所靠近所述振膜21方向弯折延伸的第一磁碗侧壁312，所述磁钢单元32固定于所述第一磁碗底壁311并与所述第一磁碗侧壁312共同形成所述磁间隙30。所述让位槽33贯穿所述第一磁碗侧壁312并沿所述振动方向延伸；所述第一延伸壁242环设于所述磁路***3外侧且间隔设置，所述第二延伸壁243经所述让位槽33延伸至所述磁间隙30内。Specifically, the first magnetic bowl 31 includes a first magnetic bowl bottom wall 311 supported and fixed to the basin frame 1, and the first magnetic bowl bottom wall 311 is bent and extended toward the direction of the diaphragm 21. The magnetic steel unit 32 is fixed to the bottom wall 311 of the first magnetic bowl and forms the magnetic gap 30 together with the side wall 312 of the first magnetic bowl. The relief groove 33 penetrates the side wall 312 of the first magnetic bowl and extends along the vibration direction; the first extension wall 242 is arranged around the outer side of the magnetic circuit system 3 and is arranged at intervals, and the second extension The wall 243 extends into the magnetic gap 30 through the relief groove 33.
进一步的，所述第二磁碗34与所述第一磁碗31正对设置；所述第二磁碗34包括第二磁碗底壁341和第二磁碗侧壁342，所述第二磁碗底壁341与所述第一磁碗底壁311间隔正对设置，所述振膜21绕设于所述第二磁碗底壁341外周，所述磁钢单元32夹设于所述第一磁碗底壁311与所述第二磁碗底壁341之间，所述第二磁碗侧壁342由所述第二磁碗底壁341向靠近所述第一磁碗底壁311方向弯折延伸，所述让位槽33亦贯穿所述第二磁碗侧壁342。Further, the second magnetic bowl 34 is arranged directly opposite to the first magnetic bowl 31; the second magnetic bowl 34 includes a second magnetic bowl bottom wall 341 and a second magnetic bowl side wall 342, and the second magnetic bowl The bottom wall of the magnetic bowl 341 and the bottom wall of the first magnetic bowl 311 are arranged directly opposite each other, the diaphragm 21 is wound around the outer periphery of the bottom wall 341 of the second magnetic bowl, and the magnetic steel unit 32 is sandwiched between the Between the first magnetic bowl bottom wall 311 and the second magnetic bowl bottom wall 341, the second magnetic bowl side wall 342 approaches the first magnetic bowl bottom wall 311 from the second magnetic bowl bottom wall 341 Bending and extending in the direction, the relief groove 33 also penetrates the side wall 342 of the second magnetic bowl.
在本实施例方式中，所述让位槽33与所述内壁13的所述通口131一一正对设置；所述第一延伸壁242环设于所述内壁13外侧且间隔设置，所述第二延伸壁243依次经所述通口131和所述让位槽33延伸至所述磁间隙30内。In this embodiment, the relief groove 33 and the opening 131 of the inner wall 13 are arranged one by one; the first extension wall 242 is arranged on the outer side of the inner wall 13 and arranged at intervals, so The second extension wall 243 sequentially extends into the magnetic gap 30 through the opening 131 and the relief groove 33.
更优的，所述压环4盖设于所述内壁13远离所述底壁11一侧，所述压环4将所述第二固定部2132压设于所述内壁13顶端；该结构提高了所述发声器件的整体刚度，进一步的提升了发声器件的稳定性。More preferably, the pressure ring 4 is arranged on the inner wall 13 away from the bottom wall 11, and the pressure ring 4 presses the second fixing portion 2132 on the top end of the inner wall 13; this structure improves The overall rigidity of the sound emitting device is improved, and the stability of the sound emitting device is further improved.
与相关技术相比，本实用新型的发声器件中，所述振动***包括连接所述振膜、所述弹性支撑组件以及所述音圈的定心支片；所述定心支片包括固定于所述振膜的本体部、由所述本体部向远离所述振膜方向弯折延伸并固定于所述弹性支撑组件的第一延伸壁以及由所述第一延伸壁向所述磁路***方向弯折延伸至所述磁间隙内并贴合固定于所述音圈远离所述振膜一侧的第二延伸壁，所述第一延伸壁绕设在所述音圈外周并与所述音圈间隔设置。该结构一方面有效的平衡振幅，提升了冲程承载极限，使发声器件的出声效果更优；另一方面，该结构加强了振动***的横向刚度，有效的平衡了所述振动***的横向摇摆，提升了发声器件的可靠性。Compared with the related art, in the sound device of the present invention, the vibration system includes a centering support piece connected to the diaphragm, the elastic support assembly, and the voice coil; the centering support piece includes The main body portion of the diaphragm, the first extension wall extending from the main portion in a direction away from the diaphragm and fixed to the elastic support component, and the first extension wall from the first extension wall toward the magnetic circuit system The direction bends and extends into the magnetic gap and is attached to the second extension wall fixed on the side of the voice coil away from the diaphragm. The first extension wall is arranged around the outer circumference of the voice coil and is connected to the second extension wall of the voice coil. Voice coil interval setting. On the one hand, the structure effectively balances the amplitude, improves the stroke bearing limit, and makes the sound output of the sound device better; on the other hand, the structure strengthens the lateral rigidity of the vibration system and effectively balances the lateral swing of the vibration system , Improve the reliability of sound-producing devices.
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。The above are only the embodiments of the present utility model. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these all belong to The scope of protection of the utility model.

Claims (12)

  1. 一种发声器件，其包括盆架、支撑于所述盆架的振动***以及驱动所述振动***振动发声的磁路***，所述磁路***具有磁间隙，其特征在于，所述振动***包括振膜、插设于所述磁间隙内以驱动所述振膜振动发声的音圈、固定于所述盆架并间隔环绕于所述磁路***的弹性支撑组件以及连接所述振膜、所述弹性支撑组件以及所述音圈的定心支片；所述定心支片包括固定于所述振膜的本体部、由所述本体部向远离所述振膜方向延伸并固定于所述弹性支撑组件的第一延伸壁以及由所述第一延伸壁向所述磁路***方向弯折延伸至所述磁间隙内并贴合固定于所述音圈远离所述振膜一侧的第二延伸壁，所述第一延伸壁绕设在所述音圈外周并与所述音圈间隔设置。A sounding device, comprising a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system for driving the vibration system to vibrate and produce sound, the magnetic circuit system having a magnetic gap, and the vibration system includes The diaphragm, a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound, an elastic support component fixed to the basin frame and spaced around the magnetic circuit system, and connecting the diaphragm and the The elastic support assembly and the centering support piece of the voice coil; the centering support piece includes a body portion fixed to the diaphragm, and extends from the body portion in a direction away from the diaphragm and is fixed to the The first extension wall of the elastic support assembly and the first extension wall bent in the direction of the magnetic circuit system to extend into the magnetic gap and are attached and fixed to the second side of the voice coil away from the diaphragm Two extension walls, the first extension wall is arranged around the outer circumference of the voice coil and is spaced apart from the voice coil.
  2. 根据权利要求1所述的发声器件，其特征在于，所述第二延伸壁包括至少两个相互间隔且对称设置在所述音圈的一侧。The sound emitting device according to claim 1, wherein the second extension wall comprises at least two spaced apart and symmetrically arranged on one side of the voice coil.
  3. 根据权利要求1所述的发声器件，其特征在于，所述弹性支撑组件包括弹性件和贴设于所述弹性件远离所述振膜一侧的辅助振膜；所述弹性件包括固定于所述盆架的第一固定臂、与所述第一固定臂间隔设置的第二固定臂以及连接所述第一固定臂和所述第二固定臂的弹臂；所述第一延伸壁贴合固定于所述第二固定臂靠近所述振膜的一侧。The sounding device according to claim 1, wherein the elastic support assembly includes an elastic member and an auxiliary diaphragm attached to a side of the elastic member away from the diaphragm; the elastic member includes The first fixed arm of the basin frame, the second fixed arm spaced apart from the first fixed arm, and the elastic arm that connects the first fixed arm and the second fixed arm; the first extension wall fits Fixed on the side of the second fixed arm close to the diaphragm.
  4. 根据权利要求3所述的发声器件，其特征在于，所述弹性件还包括自所述第二固定臂远离所述弹臂的一侧朝所述磁路***方向延伸的定位板，所述定位板与所述第二延伸壁正对。The sounding device according to claim 3, wherein the elastic member further comprises a positioning plate extending from a side of the second fixed arm away from the elastic arm toward the magnetic circuit system, and the positioning plate The board is directly opposite to the second extension wall.
  5. 根据权利要求4所述的发声器件，其特征在于，所述定位板正对所述第二延伸壁贯穿开设有定位孔，所述第二延伸壁在所述定位板上的正投影至少部分落入所述定位孔内。The sounding device according to claim 4, wherein the positioning plate is facing the second extension wall and has a positioning hole penetrating therethrough, and the orthographic projection of the second extension wall on the positioning plate is at least partially Into the positioning hole.
  6. 根据权利要求1所述的发声器件，其特征在于，所述磁路***包括第一磁碗、收容固定于所述第一磁碗内的磁钢单元以及贯穿所述第一磁碗并与所述第二延伸壁匹配的让位槽；The sounding device according to claim 1, wherein the magnetic circuit system comprises a first magnetic bowl, a magnetic steel unit accommodating and fixing in the first magnetic bowl, and a magnetic steel unit that penetrates the first magnetic bowl and is connected to the first magnetic bowl. Said second extending wall matching relief slot;
    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，所述磁钢单元固定于所述第一磁碗底壁并与所述第一磁碗侧壁间隔形成所述磁间隙；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 bent and extended from the first magnetic bowl bottom wall in a direction close to the diaphragm, The magnetic steel unit is fixed to the bottom wall of the first magnetic bowl and is spaced from the side wall of the first magnetic bowl to form the magnetic gap;
    所述让位槽贯穿所述第一磁碗侧壁并沿所述振膜的振动方向延伸；The relief groove penetrates the side wall of the first magnetic bowl and extends along the vibration direction of the diaphragm;
    所述第一延伸壁环设于所述磁路***外侧且间隔设置，所述第二延伸壁经所述让位槽延伸至所述磁间隙内。The first extension wall is arranged around the outer side of the magnetic circuit system and arranged at intervals, and the second extension wall extends into the magnetic gap through the relief groove.
  7. 根据权利要求6所述的发声器件，其特征在于，所述盆架包括底壁、由所述底壁周缘弯折延伸的外壁以及由所述底壁弯折延伸的内壁，所述外壁环绕所述内壁设置且相互间隔，所述内壁设有贯穿其上的通口，所述通口沿所述振动方向延伸； The sounding device according to claim 6, wherein the basin frame includes a bottom wall, an outer wall bent and extended from the periphery of the bottom wall, and an inner wall bent and extended by the bottom wall, and the outer wall surrounds the The inner walls are arranged and spaced apart from each other, the inner wall is provided with a through opening extending therethrough, and the through opening extends along the vibration direction;
    所述底壁与所述内壁共同围成容纳空间，所述磁路***至少部分位于所述容纳空间内，且使得所述让位槽与所述通口一一正对设置；The bottom wall and the inner wall jointly enclose an accommodating space, the magnetic circuit system is at least partially located in the accommodating space, and the relief groove and the opening are arranged one by one directly opposite;
    所述第一延伸壁环设于所述内壁外侧且间隔设置，所述第二延伸壁依次经所述通口和所述让位槽延伸至所述磁间隙内。The first extension wall is ringed on the outer side of the inner wall and arranged at intervals, and the second extension wall sequentially extends into the magnetic gap through the through opening and the relief groove.
  8. 根据权利要求7所述的发声器件，其特征在于，所述磁路***还包括盖设于所述磁钢单元的第二磁碗，所述第二磁碗与所述第一磁碗正对设置；所述第二磁碗包括第二磁碗底壁和第二磁碗侧壁，所述第二磁碗底壁与所述第一磁碗底壁间隔正对设置，所述磁钢单元夹设于所述第一磁碗底壁和所述第二磁碗底壁之间，所述第二磁碗侧壁由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，所述让位槽亦贯穿所述第二磁碗侧壁。The sounding device according to claim 7, wherein the magnetic circuit system further comprises a second magnetic bowl covering the magnetic steel unit, and the second magnetic bowl is directly opposite to the first magnetic bowl The second magnetic bowl includes a second magnetic bowl bottom wall and a second magnetic bowl side wall, the second magnetic bowl bottom wall and the first magnetic bowl bottom wall are arranged directly opposite to each other, the magnetic steel unit It is sandwiched between the bottom wall of the first magnetic bowl and the bottom wall of the second magnetic bowl, and the side wall of the second magnetic bowl approaches the bottom wall of the first magnetic bowl from the bottom wall of the second magnetic bowl The direction is bent and extended, and the relief groove also penetrates the side wall of the second magnetic bowl.
  9. 根据权利要求8所述的发声器件，其特征在于，所述振膜绕设于所述第二磁碗底壁外周，所述振膜包括振动部、由所述振动部的周缘弯折延伸的折环部以及由所述折环部弯折延伸并固定于所述盆架的固定部。The sounding device according to claim 8, wherein the diaphragm is arranged around the outer periphery of the bottom wall of the second magnetic bowl, and the diaphragm includes a vibrating portion, a portion bent and extending from the periphery of the vibrating portion A folding ring part and a fixing part bent and extended by the folding ring part and fixed to the basin frame.
  10. 根据权利要求9所述的发声器件，其特征在于，所述振膜的所述固定部包括第一固定部和第二固定部；所述第一固定部呈环状且固定于所述外壁，所述第二固定部呈环状且固定于所述内壁；The sound emitting device according to claim 9, wherein the fixing part of the diaphragm includes a first fixing part and a second fixing part; the first fixing part is ring-shaped and fixed to the outer wall, The second fixing part is ring-shaped and fixed to the inner wall;
    所述折环部包括呈环状的第一折环部和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；所述第一折环部远离所述第二折环部的一侧与所述第一固定部连接，所述第二折环部远离所述第一折环部的一侧与所述第二固定部连接；The folding ring portion includes a first folding ring portion having a ring shape and a second folding ring portion having a ring shape. The first folding ring portion surrounds the second folding ring portion and is spaced apart from each other; The side of the ring portion away from the second folding ring portion is connected to the first fixing portion, and the side of the second folding ring portion away from the first folding ring portion is connected to the second fixing portion;
    所述振动部呈环状，所述振动部位于所述第一折环部与所述第二折环部之间，且所述振动部的外侧与所述第一折环部连接，所述振动部的内侧与所述第二折环部连接；The vibrating part has a ring shape, the vibrating part is located between the first folding ring part and the second folding ring part, and the outer side of the vibrating part is connected with the first folding ring part, the The inner side of the vibrating part is connected with the second folding ring part;
    所述本体部贴设于所述振动部靠近所述磁路***的一侧。The body part is attached to a side of the vibrating part close to the magnetic circuit system.
  11. 根据权利要求10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内壁远离所述底壁一侧的压环，所述压环将所述第二固定部压设于所述内壁顶端。The sounding device according to claim 10, wherein the sounding device further comprises a pressing ring arranged on a side of the inner wall away from the bottom wall, the pressing ring pressing the second fixing part On the top of the inner wall.
  12. 根据权利要求1所述的发声器件，其特征在于，所述第二延伸壁为导电金属片，所述弹性件为FPC，所述音圈经所述第二延伸壁与所述弹性件电连接。The sounding device according to claim 1, wherein the second extension wall is a conductive metal sheet, the elastic member is an FPC, and the voice coil is electrically connected to the elastic member through the second extension wall .
PCT/CN2019/128201 2019-12-25 2019-12-25 Sound producing device WO2021128047A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170347201A1 (en) * 2016-05-26 2017-11-30 AAC Technologies Pte. Ltd. Miniature sounder
CN109218941A (en) * 2018-09-21 2019-01-15 歌尔股份有限公司 Sounding device and electronic equipment
CN109982221A (en) * 2019-04-30 2019-07-05 歌尔股份有限公司 Sounding device and electronic product
CN209390315U (en) * 2018-12-31 2019-09-13 瑞声科技(新加坡)有限公司 Microphone device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170347201A1 (en) * 2016-05-26 2017-11-30 AAC Technologies Pte. Ltd. Miniature sounder
CN109218941A (en) * 2018-09-21 2019-01-15 歌尔股份有限公司 Sounding device and electronic equipment
CN209390315U (en) * 2018-12-31 2019-09-13 瑞声科技(新加坡)有限公司 Microphone device
CN109982221A (en) * 2019-04-30 2019-07-05 歌尔股份有限公司 Sounding device and electronic product

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