WO2024130814A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2024130814A1
WO2024130814A1 PCT/CN2023/072812 CN2023072812W WO2024130814A1 WO 2024130814 A1 WO2024130814 A1 WO 2024130814A1 CN 2023072812 W CN2023072812 W CN 2023072812W WO 2024130814 A1 WO2024130814 A1 WO 2024130814A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
fixed
sound
basin frame
vibration system
Prior art date
Application number
PCT/CN2023/072812
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English (en)
French (fr)
Inventor
任莉
章超
Original Assignee
瑞声光电科技(常州)有限公司
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Application filed by 瑞声光电科技(常州)有限公司 filed Critical 瑞声光电科技(常州)有限公司
Priority to US18/337,413 priority Critical patent/US20240214741A1/en
Publication of WO2024130814A1 publication Critical patent/WO2024130814A1/zh

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Definitions

  • the utility model relates to the field of electroacoustic conversion, in particular to a sound-generating device used in portable electronic products.
  • sound-generating devices are mainly used to convert electrical signals into sound signals.
  • the sound-generating device of the related art includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system with a magnetic gap, wherein the vibration system includes a diaphragm fixed to the basin frame for vibrating and generating sound, and a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate.
  • the magnetic circuit system includes a magnetic steel, a secondary magnetic steel spaced apart from the magnetic steel, and a magnetic conductive plate disposed on the secondary magnetic steel, wherein the magnetic conductive plate is integrally formed and covered on the secondary magnetic steel, and a magnetic gap is formed between the magnetic conductive plate and the magnetic steel.
  • the magnetic conductive plate is integrally formed, which results in that the reduction of the magnetic gap between the two surfaces is limited, and the magnetic gap that needs to be designed cannot be achieved, thus affecting the acoustic performance.
  • the purpose of the utility model is to provide a sound-generating device with excellent acoustic performance.
  • the utility model provides a sound-generating device, the sound-generating device comprising: basin stand; A first vibration system, the first vibration system comprising a first diaphragm fixed to the basin frame and a first voice coil driving the first diaphragm to vibrate and generate sound; A magnetic circuit system, wherein the magnetic circuit system is fixed to the basin frame, and the magnetic circuit system includes a first magnetic conductive plate, a main magnetic steel, a first side magnetic steel, a second side magnetic steel, and a second magnetic conductive plate; the first magnetic conductive plate includes a magnetic conductive plate body, side plates bent and extended from opposite sides of the magnetic conductive plate body toward the first vibration system, and a fixed plate bent and extended from the side plate toward the basin frame, and the fixed plate is fixed to the basin frame; the main magnetic steel is fixed to one side of the magnetic conductive plate body close to the first vibration system, the first side magnetic steel is fixed to the basin frame and spaced apart at opposite sides of the main magnetic steel, and two The side plates are spaced
  • the first side magnetic steels are spaced apart at two opposite sides of the long axis of the main magnetic steel, and the second side magnetic steels are spaced apart at two opposite sides of the short axis of the main magnetic steel.
  • the first side magnet includes a first magnet body fixed to the basin frame, a bending portion extending from a side of the first magnet body close to the main magnet toward the first vibration system, and a first extension portion protruding from the bending portion toward the main magnet, and the first extension portion and the main magnet are spaced to form the first magnetic gap.
  • the first side magnet includes a second magnet body fixed to the basin frame and a second extension portion formed by extending the second magnet body toward the main magnet, a side of the second extension portion close to the first vibration system and a side of the second magnet body close to the first vibration system are located in the same plane, and the second extension portion and the main magnet are spaced to form the first magnetic gap.
  • the basin frame includes a first basin frame and a second basin frame stacked and fixed to the first basin frame, the first side magnetic steel is located between the first basin frame and the second basin frame, and the first magnetic conductive plate is fixed to the first basin frame; the first vibration system is fixed to the first basin frame, the fixed plate of the first magnetic conductive plate of the magnetic circuit system is fixed to the first basin frame, and the second vibration system is fixed to the second basin frame.
  • the sound-generating device further comprises support plates fixed to opposite sides of the first basin frame, and the first side magnetic steel is fixed to the support plates.
  • the magnetic circuit system further comprises a lower clamping plate, which is stacked and fixed on a side of the main magnetic steel close to the first vibration system.
  • the magnetic conductive plate body, the side plate and the fixed plate are arranged as an integral or separate structure.
  • the sound-generating device also includes an elastic conductive member, which includes a first elastic conductive member fixed to a side of the first basin close to the first vibration system and a second elastic conductive member fixed to a side of the second basin close to the second vibration system, and the first elastic conductive member and the second elastic conductive member are electrically connected to the first voice coil and the second voice coil, respectively.
  • an elastic conductive member which includes a first elastic conductive member fixed to a side of the first basin close to the first vibration system and a second elastic conductive member fixed to a side of the second basin close to the second vibration system, and the first elastic conductive member and the second elastic conductive member are electrically connected to the first voice coil and the second voice coil, respectively.
  • the sound-generating device further comprises a front cover, wherein the front cover is arranged on a side of the second basin frame away from the second vibration system, the front cover is provided with a sound outlet hole running through it, the front cover and the second diaphragm are spaced to form a sound-generating front cavity, and the sound-generating front cavity is connected with the outside through the sound outlet hole.
  • a front cover wherein the front cover is arranged on a side of the second basin frame away from the second vibration system, the front cover is provided with a sound outlet hole running through it, the front cover and the second diaphragm are spaced to form a sound-generating front cavity, and the sound-generating front cavity is connected with the outside through the sound outlet hole.
  • the magnetic circuit system includes a first magnetic conductive plate, a main magnetic steel, a first side magnetic steel, a second side magnetic steel and a second magnetic conductive plate;
  • the first magnetic conductive plate includes a magnetic conductive plate body, side plates bent and extended from the opposite sides of the magnetic conductive plate body toward the first vibration system, and a fixed plate bent and extended from the side plate toward the basin frame, and the fixed plate is fixed to the basin frame;
  • the main magnetic steel is fixed to one side of the magnetic conductive plate body close to the first vibration system
  • the first side magnetic steel is fixed to the basin frame and is spaced apart on the opposite sides of the main magnetic steel, and the two side plates are spaced apart on the other opposite sides of the main magnetic steel, and the main magnetic steel, the first side magnetic steel and the side plates are spaced apart on the other opposite sides of the main magnetic steel.
  • the size of the magnetic gap is optimized, thereby improving the acoustic performance of the sound-generating device.
  • FIG1 is a schematic diagram of the three-dimensional structure of the sound-generating device of the present invention
  • FIG2 is an exploded view of the three-dimensional structure of FIG1
  • Figure 3 is a cross-sectional view taken along line AA in Figure 1
  • Figure 4 is a cross-sectional view taken along line BB in Figure 1
  • FIG5 is a schematic diagram of the three-dimensional structure of the sound-generating device of the present invention
  • FIG6 is an exploded view of the three-dimensional structure of FIG5
  • FIG7 is a cross-sectional view along line CC in FIG5
  • FIG. 8 is a schematic diagram of the assembly structure of the support plate and the first basin frame of FIG. 5 .
  • 100 sound-generating device, 1, basin frame, 11, first basin frame, 12, second basin frame, 2, first vibration system, 21, first diaphragm, 211, first fixing part, 212, first folding ring part, 213, first connecting part, 214, first ball top, 22, first voice coil, 3, magnetic circuit system, 31, main magnetic steel, 32, first side magnetic steel, 321, first magnetic steel body, 322, bending part, 323, first extension part, 324, second magnetic steel body, 325, second extension part, 33, second side magnetic steel, 34, first A magnetic conductive plate, 341, a magnetic conductive plate body, 342, a side plate, 343, a fixing plate, 35, a second magnetic conductive plate, 36, a first magnetic gap, 37, a second magnetic gap, 38, a lower clamping plate, 4, a second vibration system, 41, a second diaphragm, 411, a second fixing portion, 412, a second folding ring portion, 413, a second connecting portion, 414, a second dome, 42,
  • the utility model provides a sound-generating device 100 , which includes: a basin frame 1 , a first vibration system 2 , a magnetic circuit system 3 and a second vibration system 4 .
  • the basin frame 1 is used to install and fix the first vibration system 2, the second vibration system 4 and the magnetic circuit system 3, so that the first vibration system 2 and the second vibration system 4 have good stability when vibrating and making sounds.
  • the first vibration system 2 includes a first diaphragm 21 fixed to the basin frame 1 and a first voice coil 22 for driving the first diaphragm 21 to vibrate and generate sound.
  • the first diaphragm 21 includes a first fixing portion 211, a first folding ring portion 212 extending from the inner periphery of the first fixing portion 211, and a first connecting portion 213 extending from the first folding ring portion 212 in a direction away from the basin frame 1.
  • the first voice coil 22 is fixed to a side of the first fixing portion 211 close to the magnetic circuit system 3.
  • a first dome 214 is also fixed to a side of the first connecting portion 213 away from the magnetic circuit system 3, which is used to improve the vibration performance of the first connecting portion 213.
  • the magnetic circuit system 3 is fixed to the basin frame 1, and the magnetic circuit system 3 includes a first magnetic conductive plate 34, a main magnetic steel 31, a first side magnetic steel 32, a second side magnetic steel 33 and a second magnetic conductive plate 35;
  • the first magnetic conductive plate 34 includes a magnetic conductive plate body 341, side plates 342 bent and extended from opposite sides of the magnetic conductive plate body 341 toward the first vibration system 2, and a fixed plate 343 bent and extended from the side plates 342 toward the basin frame 1, and the fixed plate 343 is fixed to the basin frame 1;
  • the main magnetic steel 31 is fixed to one side of the magnetic conductive plate body 341 close to the first vibration system 2
  • the first side magnetic steel 32 is fixed to the basin frame 1 and is spaced apart at opposite sides of the main magnetic steel 31, and the two
  • the side plates 342 are arranged at intervals on the other two opposite sides of the main magnetic steel 31, and the main magnetic steel 31, the first side magnetic steel 32 and the side plates 342 together form a first magnetic gap 36;
  • the long side position of the first magnetic conductive plate 34 is removed to form the magnetic conductive plate body 341, which effectively simplifies the magnetic conductive plate structure.
  • the second vibration system 4 includes a second diaphragm 41 fixed to a side of the basin frame 1 away from the magnetic circuit system 3 and a second voice coil 42 driving the second diaphragm 41 to vibrate and produce sound.
  • the second voice coil 42 is inserted in the second magnetic gap 37 .
  • the second diaphragm 41 includes a second fixing portion 411, a second folding ring portion 412 extending from the periphery of the second fixing portion 411, and a second connecting portion 413 extending from the second folding ring portion 412 toward the basin frame 1.
  • the second voice coil 42 is fixed to the side of the second fixing portion 411 close to the magnetic circuit system 3.
  • a second dome 414 is also fixed to the side of the second fixing portion 411 close to the magnetic circuit system 3 to improve the vibration performance of the second fixing portion 411.
  • the second voice coil 42 is suspended and fixed to the side of the second dome 414 close to the magnetic circuit system 3.
  • the first side magnetic steels 32 are arranged at intervals on opposite sides of the long axis of the main magnetic steel 31, and the second side magnetic steels 33 are arranged at intervals on opposite sides of the short axis of the main magnetic steel 31.
  • the first side magnetic steel 32 is a special-shaped magnetic steel, and the magnetic gap can be freely adjusted by matching the long side of the main magnetic steel 31 with the special-shaped magnetic steel, thereby optimizing the size of the magnetic gap and improving the acoustic performance of the sound-generating device 100.
  • the first side magnetic steel 32 includes a first magnetic steel body 321 matched with the basin frame 1, a bending portion 322 extending from the side of the first magnetic steel body 321 close to the main magnetic steel 31 to the first vibration system 2, and a first extension portion 323 protruding and extending from the bending portion 322 to the side close to the main magnetic steel 31, and the first extension portion 323 and the main magnetic steel 31 are spaced to form the first magnetic gap 36.
  • the first side magnet 32 includes a second magnet body 324 fixed to the basin frame 1 and a second extension portion 325 formed by extending from the second magnet body 324 toward the main magnet 31, and a side of the second extension portion 325 close to the first vibration system 2 and a side of the second magnet body 234 close to the first vibration system 2 are located in the same plane, and the second extension portion 325 and the main magnet 31 are separated to form the first magnetic gap 36.
  • the basin frame 1 includes a first basin frame 11 and a second basin frame 12 fixed to the first basin frame 11, the first side magnetic steel 32 is located between the first basin frame 11 and the second basin frame 12, and the first magnetic conductive plate 34 is fixed to the first basin frame 11.
  • the first vibration system 2 is fixed to the first basin frame 11, the fixing plate 343 of the first magnetic conductive plate 34 of the magnetic circuit system 3 is fixed to the first basin frame 11, and the second vibration system 4 is fixed to the second basin frame 12.
  • the first vibration system 2, the second vibration system 4 and the magnetic circuit system 3 are well fixed.
  • the outer periphery of the first diaphragm 21 of the first vibration system 2 is fixed to the first basin frame 11
  • the outer periphery of the second diaphragm 41 of the second vibration system 4 is fixed to the second basin frame 12
  • the fixing plate 343 of the magnetic circuit system 3 is fixed to the first basin frame 11 .
  • the sound-generating device 100 further includes a support plate 5 close to the second basin frame 12 and fixed to the opposite sides of the first basin frame 11, and the first side magnet 32 is fixed to the support plate 5.
  • the support plate 5 independently arranged on one side of the long axis of the main magnet 31 is used to support and set the first side magnet 32, so as to facilitate the movement of the position of the first side magnet 32.
  • the support plate 5 cooperates with the first side magnet 32, so that the assembly is convenient and the magnetic gap can be freely adjusted.
  • the lower end surface of the second extension portion 325 is parallel to the second magnet body 324, and the first side magnet 32 is installed on the first basin frame 11, so that the first side magnet 32 is easy to assemble.
  • the support plate 5 can be used as a magnetic conductive plate or a pole core fixed to the first side magnetic steel 32 to enhance the magnetic performance of the first side magnetic steel 32 .
  • the magnetic circuit system 3 further includes a lower clamping plate 38 , which is stacked and fixed on a side of the main magnetic steel 31 close to the first vibration system 2 , so as to improve the magnetic performance of the magnetic circuit system 3 .
  • the lower clamping plate 38 can be used as a magnetic conductive plate or a pole core fixed to the main magnetic steel to enhance the magnetic performance of the main magnetic steel 31.
  • the magnetic conductive plate body 341, the side plate 342 and the fixing plate 343 are integrated or separated, which simplifies the structure of the first magnetic conductive plate 34, optimizes the design of the magnetic gap, and improves the acoustic performance of the sound generating device 100.
  • the second side magnetic steel 33 and the first magnetic conductive plate 34 are fixed by welding.
  • welding it is not limited to welding, and it can also be riveted, glued, etc.
  • the specific selection is based on actual needs and will not be described here one by one.
  • the sound-generating device 100 further includes an elastic conductive member 6, which includes a first elastic conductive member 61 fixed to the first frame 11 on one side close to the first vibration system 2 and a second elastic conductive member 62 fixed to the second frame 12 on one side close to the second vibration system 4, and the first elastic conductive member 61 and the second elastic conductive member 62 are electrically connected to the first voice coil 22 and the second voice coil 42, respectively.
  • an elastic conductive member 6 which includes a first elastic conductive member 61 fixed to the first frame 11 on one side close to the first vibration system 2 and a second elastic conductive member 62 fixed to the second frame 12 on one side close to the second vibration system 4, and the first elastic conductive member 61 and the second elastic conductive member 62 are electrically connected to the first voice coil 22 and the second voice coil 42, respectively.
  • the elastic conductive member 6 is connected to an external circuit, and the first elastic conductive member 61 and the second elastic conductive member 62 are connected to the first voice coil 22 and the second voice coil 42, respectively, for providing power to the first voice coil 22 and the second voice coil 42, respectively, so that the first voice coil 22 and the second voice coil 42 vibrate and generate sound.
  • the second elastic conductive member 62 includes four members spaced apart on opposite sides of the second side magnetic steel 33, one end of the second elastic conductive member 62 is fixed to the frame 1, and the other end of the second elastic conductive member 62 is connected to the second voice coil 42.
  • the second elastic conductive member 62 is an elastic arm structure.
  • the sound-generating device 100 further includes a front cover 7, and the front cover 7 is provided on the side of the second basin frame 12 away from the second vibration system 4, and the front cover 7 is provided with a sound outlet hole 71 running through it, and the front cover 7 and the second diaphragm 41 are spaced apart to form a sound front cavity 72, and the sound front cavity 72 is connected to the outside through the sound outlet hole 71.
  • the front cover 7 is provided on the geothermal vibration system, so that the second diaphragm 41 and the second basin frame 12 are well fixed.
  • the sound of the first vibration system 2 and the second vibration system 4 can diffuse from the sound outlet hole 71 to the external environment, and the sound effect is good.
  • the sound outlet holes 71 include a plurality of holes and are evenly distributed on the front cover 7, and the sound effect is uniform.
  • the magnetic circuit system includes a first magnetic conductive plate, a main magnetic steel, a first side magnetic steel, a second side magnetic steel and a second magnetic conductive plate;
  • the first magnetic conductive plate includes a magnetic conductive plate body, side plates bent and extended from the opposite sides of the magnetic conductive plate body toward the first vibration system, and a fixed plate bent and extended from the side plate toward the basin frame, and the fixed plate is fixed to the basin frame;
  • the main magnetic steel is fixed to one side of the magnetic conductive plate body close to the first vibration system
  • the first side magnetic steel is fixed to the basin frame and is spaced apart on the opposite sides of the main magnetic steel, and the two side plates are spaced apart on the other opposite sides of the main magnetic steel, and the main magnetic steel, the first side magnetic steel and the side plates are spaced apart on the other opposite sides of the main magnetic steel.
  • the size of the magnetic gap is optimized, thereby improving the acoustic performance of the sound-generating device.

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  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本实用新型提供了一种发声器件，发声器件包括：盆架；第一振动系统；磁路系统，第一导磁板包括导磁板本体、侧板和由侧板向盆架方向弯折延伸的固定板；主磁钢固定于导磁板本体靠近第一振动系统的一侧，第一边磁钢间隔设置于主磁钢的相对两侧，两个侧板间隔设置于主磁钢的另外相对两侧，主磁钢、第一边磁钢以及侧板共同围成第一磁间隙；第二边磁钢固定于固定板远离第一振动系统的一侧且间隔设置于侧板远离主磁钢的一侧，第二导磁板间隔环绕导磁板本体设置并共同围成第二磁间隙；第一音圈插设于第一磁间隙；以及第二振动系统，第二振动系统的第二音圈插设于第二磁间隙。与相关技术相比，本实用新型的发声器件便于提高声学性能。

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便携式电子产品的发声器件。
 背景技术
发声器件作为手机等移动终端的主要元器件之一，其主要用于将电信号转换成声音信号。
相关技术的发声器件包括盆架、固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架用于振动发声的振膜，插设于所述磁间隙以驱动所述振膜振动的音圈。磁路系统包括磁钢、间隔设置于磁钢的副磁钢和设置于副磁钢的导磁板，将导磁板一体成型，盖设于副磁钢上，导磁板和磁钢之间形成磁间隙。
 技术问题
然而，相关技术的发声器件中，导磁板一体成型，导致两面之间的磁间隙减小受限制，无法做到需要设计的磁间隙，影响声学性能。
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声学性能优良的发声器件。
为了达到上述目的，本实用新型提供了一种发声器件，所述发声器件包括：
盆架；
第一振动系统，所述第一振动系统包括固定于所述盆架的第一振膜和驱动所述第一振膜振动发声的第一音圈；
磁路系统，所述磁路系统固定于所述盆架，所述磁路系统包括第一导磁板、主磁钢、第一边磁钢、第二边磁钢以及第二导磁板；所述第一导磁板包括导磁板本体、由所述导磁板本体的相对两侧向靠近所述第一振动系统弯折延伸的侧板和由所述侧板向所述盆架方向弯折延伸的固定板，所述固定板固定于所述盆架；所述主磁钢固定于所述导磁板本体靠近所述第一振动系统的一侧，所述第一边磁钢固定于所述盆架并间隔设置于所述主磁钢的相对两侧，两个所述侧板间隔设置于所述主磁钢的另外相对两侧，所述主磁钢、所述第一边磁钢以及所述侧板共同围成第一磁间隙；所述第二边磁钢固定于所述固定板远离所述第一振动系统的一侧且间隔设置于所述侧板远离所述主磁钢的一侧，所述第二导磁板叠设于所述第一边磁钢和/或所述第二边磁钢远离所述第一振动系统一侧且固定于所述盆架，所述第二导磁板间隔环绕所述导磁板本体设置并共同围成第二磁间隙；所述第一音圈插设于所述第一磁间隙；以及，
第二振动系统，所述第二振动系统包括固定于所述盆架并位于所述磁路系统远离所述第一振动系统一侧的第二振膜和驱动所述第二振膜振动发声的第二音圈，所述第二音圈插设于第二磁间隙。
优选的，所述第一边磁钢间隔设置于所述主磁钢的长轴相对两侧，所述第二边磁钢间隔设置于所述主磁钢的短轴相对两侧。
优选的，所述第一边磁钢包括固定于所述盆架的第一磁钢本体、由所述第一磁钢本体靠近所述主磁钢的一侧向所述第一振动系统延伸的弯折部和由所述弯折部向靠近所述主磁钢凸出延伸的第一延伸部，所述第一延伸部和所述主磁钢间隔形成所述第一磁间隙。
优选的，所述第一边磁钢包括固定于所述盆架的第二磁钢本体和由所述第二磁钢本体向靠近所述主磁钢延伸形成的第二延伸部，所述第二延伸部靠近所述第一振动系统的一侧与所述第二磁钢本体靠近所述第一振动系统的一侧位于同一平面，所述第二延伸部和所述主磁钢间隔形成所述第一磁间隙。
优选的，所述盆架包括第一盆架和与所述第一盆架叠设固定的第二盆架，所述第一边磁钢位于所述第一盆架和所述第二盆架之间，所述第一导磁板固定于所述第一盆架；所述第一振动系统固定于所述第一盆架，所述磁路系统的所述第一导磁板的所述固定板固定于所述第一盆架，所述第二振动系统固定于所述第二盆架。
优选的，所述发声器件还包括固定于所述第一盆架相对两侧的支撑板，所述第一边磁钢固定于所述支撑板。
优选的，所述磁路系统还包括下夹板，所述下夹板叠设固定于所述主磁钢靠近所述第一振动系统的一侧。
优选的，所述导磁板本体、所述侧板及所述固定板为一体或分体结构设置。
优选的，所述发声器件还包括弹性导电件，所述弹性导电件包括固定于所述第一盆架靠近所述第一振动系统的一侧的第一弹性导电件和固定于所述第二盆架靠近所述第二振动系统一侧的第二弹性导电件，所述第一弹性导电件和所述第二弹性导电件分别与所述第一音圈和所述第二音圈电连接。
优选的，所述发声器件还包括前盖，所述前盖盖设于所述第二盆架远离所述第二振动系统的一侧，所述前盖设有贯穿其上的出声孔，所述前盖与所述第二振膜间隔形成发声前腔，所述发声前腔通过所述出声孔与外界连通。
 有益效果
与相关技术相比，本实用新型的发声器件中，通过磁路系统固定于盆架，磁路系统包括第一导磁板、主磁钢、第一边磁钢、第二边磁钢以及第二导磁板；第一导磁板包括导磁板本体、由导磁板本体的相对两侧向靠近第一振动系统弯折延伸的侧板和由侧板向盆架方向弯折延伸的固定板，固定板固定于盆架；主磁钢固定于导磁板本体靠近第一振动系统的一侧，第一边磁钢固定于盆架并间隔设置于主磁钢的相对两侧，两个侧板间隔设置于主磁钢的另外相对两侧，主磁钢、第一边磁钢以及侧板共同围成第一磁间隙；第二边磁钢固定于固定板远离第一振动系统的一侧且间隔设置于侧板远离主磁钢的一侧，第二导磁板叠设于第一边磁钢和/或第二边磁钢远离第一振动系统一侧且固定于盆架，第二导磁板间隔环绕导磁板本体设置并共同围成第二磁间隙；第一音圈插设于第一磁间隙，第二音圈插设于第二磁间隙；这样使得第一导磁板的长边位置去除形成导磁板本体，有效简化导磁板结构，同时通过调节第一边磁钢和主磁钢的间距，优化磁间隙的大小，提高发声器件的声学性能。
 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为图1的立体结构分解图；
图3为沿图1中A-A线的剖示图;
图4为沿图1中B-B线的剖示图;
图5为本实用新型发声器件的立体结构示意图；
图6为图5的立体结构分解图；
图7为沿图5中C-C线的剖示图；
图8为图5的支撑板和第一盆架的装配结构示意图。
图中，100、发声器件，1、盆架，11、第一盆架，12、第二盆架，2、第一振动系统，21、第一振膜，211、第一固定部，212、第一折环部，213、第一连接部，214、第一球顶，22、第一音圈，3、磁路系统，31、主磁钢，32、第一边磁钢，321、第一磁钢本体，322、弯折部，323、第一延伸部，324、第二磁钢本体，325、第二延伸部，33、第二边磁钢，34、第一导磁板，341、导磁板本体，342、侧板，343、固定板，35、第二导磁板，36、第一磁间隙，37、第二磁间隙，38、下夹板，4、第二振动系统，41、第二振膜，411、第二固定部，412、第二折环部，413、第二连接部，414、第二球顶，42、第二音圈，5、支撑板，6、弹性导电件，61、第一弹性导电件，62、第二弹性导电件，7、前盖，71、出声孔，72、发声前腔。
 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1-8，本实用新型提供了一种发声器件100，所述发声器件100包括：盆架1、第一振动系统2、磁路系统3以及第二振动系统4。
盆架1内用于安装固定第一振动系统2、第二振动系统4和磁路系统3，使得第一振动系统2和第二振动系统4在振动发声时，稳定性好。
所述第一振动系统2包括固定于所述盆架1的第一振膜21和驱动所述第一振膜21振动发声的第一音圈22。
第一振膜21包括第一固定部211、由第一固定部211的内周缘弯折延伸的第一折环部212和由所述第一折环部212向远离所述盆架1方向延伸的第一连接部213。第一音圈22固定于第一固定部211靠近所述磁路系统3的一侧。本实施例中，第一连接部213远离所述磁路系统3的一侧还固定有第一球顶214，用于提高第一连接部213的振动性能。
所述磁路系统3固定于所述盆架1，所述磁路系统3包括第一导磁板34、主磁钢31、第一边磁钢32、第二边磁钢33以及第二导磁板35；所述第一导磁板34包括导磁板本体341、由所述导磁板本体341的相对两侧向靠近所述第一振动系统2弯折延伸的侧板342和由所述侧板342向所述盆架1方向弯折延伸的固定板343，所述固定板343固定于所述盆架1；所述主磁钢31固定于所述导磁板本体341靠近所述第一振动系统2的一侧，所述第一边磁钢32固定于所述盆架1并间隔设置于所述主磁钢31的相对两侧，两个所述侧板342间隔设置于所述主磁钢31的另外相对两侧，所述主磁钢31、所述第一边磁钢32以及所述侧板342共同围成第一磁间隙36；所述第二边磁钢33固定于所述固定板343远离所述第一振动系统2的一侧且间隔设置于所述侧板342远离所述主磁钢31的一侧，所述第二导磁板35叠设于所述第一边磁钢32和/或所述第二边磁钢33远离所述第一振动系统2一侧且固定于所述盆架1，所述第二导磁板35间隔环绕所述导磁板本体341设置并共同围成第二磁间隙37；所述第一音圈22插设于所述第一磁间隙36。这样使得第一导磁板34的长边位置去除形成导磁板本体341，有效简化导磁板结构。通过调节第一边磁钢32和主磁钢31之间的间距以使第一磁间隙36增大，优化磁间隙的大小，提高发声器件100的声学性能。
所述第二振动系统4包括固定于所述盆架1远离所述磁路系统3一侧的第二振膜41和驱动所述第二振膜41振动发声的第二音圈42，所述第二音圈42插设于第二磁间隙37。
第二振膜41包括第二固定部411、由第二固定部411的周缘弯折延伸的第二折环部412和由所述第二折环部412向所述盆架1方向延伸的第二连接部413。第二音圈42固定于第二固定部411靠近所述磁路系统3的一侧。本实施例中，第二固定部411靠近所述磁路系统3的一侧还固定有第二球顶414，用于提高第二固定部411的振动性能。其中，第二音圈42悬挂固定于第二球顶414靠近所述磁路系统3的一侧。
本实施方式中，所述第一边磁钢32间隔设置于所述主磁钢31的长轴相对两侧，所述第二边磁钢33间隔设置于所述主磁钢31的短轴相对两侧。第一边磁钢32为异形磁钢，通过将主磁钢31的长边配合异形磁钢，可自由调整磁间隙，从而优化磁间隙的大小，提高发声器件100的声学性能。
本实施方式中，所述第一边磁钢32包括配合于所述盆架1的第一磁钢本体321、由所述第一磁钢本体321靠近所述主磁钢31的一侧向所述第一振动系统2延伸的弯折部322和由所述弯折部322向靠近所述主磁钢31的一侧凸出延伸的第一延伸部323，所述第一延伸部323和所述主磁钢31间隔形成所述第一磁间隙36。通过调节磁钢本体321与盆架1之间的位置以使延伸部323和主磁钢31的第一磁间隙36调节，优化第一磁间隙36的大小，有效提高发声器件100的声学性能。
本实施方式中，所述第一边磁钢32包括固定于所述盆架1的第二磁钢本体324和由所述第二磁钢本体324向靠近所述主磁钢31延伸形成的第二延伸部325，所述第二延伸部325靠近所述第一振动系统2的一侧与所述第二磁钢本体234靠近所述第一振动系统2的一侧位于同一平面，所述第二延伸部325和所述主磁钢31间隔形成所述第一磁间隙36。
本实施方式中，所述盆架1包括第一盆架11和与所述第一盆架11配合固定的第二盆架12，所述第一边磁钢32位于所述第一盆架11和所述第二盆架12之间，所述第一导磁板34固定于所述第一盆架11。这样便于调节第一边磁钢32的位置，用以调节第一磁间隙36的间隙大小，提升发声器件100的声学性能。所述第一振动系统2固定于所述第一盆架11，所述磁路系统3的所述第一导磁板34的所述固定板343固定于所述第一盆架11，所述第二振动系统4固定于所述第二盆架12。使得第一振动系统2、第二振动系统4和磁路系统3固定良好。
其中，第一振动系统2的第一振膜21的外周固定于所述第一盆架11，第二振动系统4的第二振膜41的外周固定于所述第二盆架12，所述磁路系统3的固定板343固定于所述第一盆架11。
本实用新型的一个可选实施例中，所述发声器件100还包括靠近所述第二盆架12且固定于所述第一盆架11相对两侧的支撑板5，所述第一边磁钢32固定于所述支撑板5。通过独立设置于主磁钢31长轴边一侧的支撑板5用于支撑设置第一边磁钢32，方便第一边磁钢32的位置移动，通过支撑板5配合第一边磁钢32，装配方便，可自由调整磁间隙。将第二延伸部325的下端面和第二磁钢本体324平行，通过将第一边磁钢32安装于第一盆架11，使得第一边磁钢32装配方便。
可选的，支撑板5可作为固定于第一边磁钢32的导磁板或极芯，用于增强第一边磁钢32的磁力性能。
本实施方式中，所述磁路系统3还包括下夹板38，所述下夹板38叠设固定于所述主磁钢31靠近所述第一振动系统2的一侧。用于提高磁路系统3的磁力性能。
可选的，下夹板38可作为固定于主磁钢的导磁板或极芯，用于增强主磁钢31的磁力性能。
本实施方式中，所述导磁板本体341、所述侧板342及所述固定板343为一体或分体结构设置。简化了第一导磁板34的结构，同时可以优化磁间隙的设计，提高发声器件100的声学性能。
可选的，所述第二边磁钢33与所述第一导磁板34通过焊接固定，当然不仅仅限于焊接，还可以是铆接、胶合等，具体根据实际需要进行选择，此处不再一一描述。
本实施方式中，所述发声器件100还包括弹性导电件6，所述弹性导电件6包括固定于所述第一盆架11靠近所述第一振动系统2的一侧的第一弹性导电件61和固定于所述第二盆架12靠近所述第二振动系统4一侧的第二弹性导电件62，所述第一弹性导电件61和所述第二弹性导电件62分别与所述第一音圈22和所述第二音圈42电连接。将弹性导电件6的一端连接于外部电路，第一弹性导电件61和第二弹性导电件62分别连接第一音圈22和第二音圈42，用于分别为第一音圈22和第二音圈42提供电源，使得第一音圈22和第二音圈42振动发声。本实施例中，第二弹性导电件62包括间隔设置于第二边磁钢33相对两侧的四个，第二弹性导电件62的一端固定于盆架1，第二弹性导电件62的另一端连接第二音圈42。其中，第二弹性导电件62为弹臂结构。
本实施方式中，所述发声器件100还包括前盖7，所述前盖7盖设于所述第二盆架12远离所述第二振动系统4的一侧，所述前盖7设有贯穿其上的出声孔71，所述前盖7与所述第二振膜41间隔形成发声前腔72，所述发声前腔72通过所述出声孔71与外界连通。通过前盖7盖设于地热振动系统，使得第二振膜41与第二盆架12的固定效果好。第一振动系统2和第二振动系统4的声音能从出声孔71扩散到外部环境，发声效果好。出声孔71包括多个且均匀分布于前盖7，出声效果均匀。
与相关技术相比，本实用新型的发声器件中，通过磁路系统固定于盆架，磁路系统包括第一导磁板、主磁钢、第一边磁钢、第二边磁钢以及第二导磁板；第一导磁板包括导磁板本体、由导磁板本体的相对两侧向靠近第一振动系统弯折延伸的侧板和由侧板向盆架方向弯折延伸的固定板，固定板固定于盆架；主磁钢固定于导磁板本体靠近第一振动系统的一侧，第一边磁钢固定于盆架并间隔设置于主磁钢的相对两侧，两个侧板间隔设置于主磁钢的另外相对两侧，主磁钢、第一边磁钢以及侧板共同围成第一磁间隙；第二边磁钢固定于固定板远离第一振动系统的一侧且间隔设置于侧板远离主磁钢的一侧，第二导磁板叠设于第一边磁钢和/或第二边磁钢远离第一振动系统一侧且固定于盆架，第二导磁板间隔环绕导磁板本体设置并共同围成第二磁间隙；第一音圈插设于第一磁间隙，第二音圈插设于第二磁间隙；这样使得第一导磁板的长边位置去除形成导磁板本体，有效简化导磁板结构，同时通过调节第一边磁钢和主磁钢的间距，优化磁间隙的大小，提高发声器件的声学性能。
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 (10)

  1. 一种发声器件，其特征在于，所述发声器件包括：
    盆架；
    第一振动系统，所述第一振动系统包括固定于所述盆架的第一振膜和驱动所述第一振膜振动发声的第一音圈；
    磁路系统，所述磁路系统固定于所述盆架，所述磁路系统包括第一导磁板、主磁钢、第一边磁钢、第二边磁钢以及第二导磁板；所述第一导磁板包括导磁板本体、由所述导磁板本体的相对两侧向靠近所述第一振动系统弯折延伸的侧板和由所述侧板向所述盆架方向弯折延伸的固定板，所述固定板固定于所述盆架；所述主磁钢固定于所述导磁板本体靠近所述第一振动系统的一侧，所述第一边磁钢固定于所述盆架并间隔设置于所述主磁钢的相对两侧，两个所述侧板间隔设置于所述主磁钢的另外相对两侧，所述主磁钢、所述第一边磁钢以及所述侧板共同围成第一磁间隙；所述第二边磁钢固定于所述固定板远离所述第一振动系统的一侧且间隔设置于所述侧板远离所述主磁钢的一侧，所述第二导磁板叠设于所述第一边磁钢和/或所述第二边磁钢远离所述第一振动系统一侧且固定于所述盆架，所述第二导磁板间隔环绕所述导磁板本体设置并共同围成第二磁间隙；所述第一音圈插设于所述第一磁间隙；以及，
    第二振动系统，所述第二振动系统包括固定于所述盆架并位于所述磁路系统远离所述第一振动系统一侧的第二振膜和驱动所述第二振膜振动发声的第二音圈，所述第二音圈插设于第二磁间隙。
  2. 根据权利要求1所述的发声器件，其特征在于，所述第一边磁钢间隔设置于所述主磁钢的长轴相对两侧，所述第二边磁钢间隔设置于所述主磁钢的短轴相对两侧。
  3. 根据权利要求1所述的发声器件，其特征在于，所述第一边磁钢包括固定于所述盆架的第一磁钢本体、由所述第一磁钢本体靠近所述主磁钢的一侧向所述第一振动系统延伸的弯折部和由所述弯折部向靠近所述主磁钢凸出延伸的第一延伸部，所述第一延伸部和所述主磁钢间隔形成所述第一磁间隙。
  4. 根据权利要求1所述的发声器件，其特征在于，所述第一边磁钢包括固定于所述盆架的第二磁钢本体和由所述第二磁钢本体向靠近所述主磁钢延伸形成的第二延伸部，所述第二延伸部靠近所述第一振动系统的一侧与所述第二磁钢本体靠近所述第一振动系统的一侧位于同一平面，所述第二延伸部和所述主磁钢间隔形成所述第一磁间隙。
  5. 根据权利要求3或4所述的发声器件，其特征在于，所述盆架包括第一盆架和与所述第一盆架叠设固定的第二盆架，所述第一边磁钢位于所述第一盆架和所述第二盆架之间，所述第一导磁板固定于所述第一盆架；所述第一振动系统固定于所述第一盆架，所述磁路系统的所述第一导磁板的所述固定板固定于所述第一盆架，所述第二振动系统固定于所述第二盆架。
  6. 根据权利要求5所述的发声器件，其特征在于，所述发声器件还包括固定于所述第一盆架相对两侧的支撑板，所述第一边磁钢固定于所述支撑板。
  7. 根据权利要求1所述的发声器件，其特征在于，所述磁路系统还包括下夹板，所述下夹板叠设固定于所述主磁钢靠近所述第一振动系统的一侧。
  8. 根据权利要求1所述的发声器件，其特征在于，所述导磁板本体、所述侧板及所述固定板为一体或分体结构设置。
  9. 根据权利要求5所述的发声器件，其特征在于，所述发声器件还包括弹性导电件，所述弹性导电件包括固定于所述第一盆架靠近所述第一振动系统的一侧的第一弹性导电件和固定于所述第二盆架靠近所述第二振动系统一侧的第二弹性导电件，所述第一弹性导电件和所述第二弹性导电件分别与所述第一音圈和所述第二音圈电连接。
  10. 根据权利要求5所述的发声器件，其特征在于，所述发声器件还包括前盖，所述前盖盖设于所述第二盆架远离所述第二振动系统的一侧，所述前盖设有贯穿其上的出声孔，所述前盖与所述第二振膜间隔形成发声前腔，所述发声前腔通过所述出声孔与外界连通。
PCT/CN2023/072812 2022-12-22 2023-01-18 发声器件 WO2024130814A1 (zh)

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