WO2021114121A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2021114121A1
WO2021114121A1 PCT/CN2019/124447 CN2019124447W WO2021114121A1 WO 2021114121 A1 WO2021114121 A1 WO 2021114121A1 CN 2019124447 W CN2019124447 W CN 2019124447W WO 2021114121 A1 WO2021114121 A1 WO 2021114121A1
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WO
WIPO (PCT)
Prior art keywords
main body
basin frame
fixed
frame
magnet
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PCT/CN2019/124447
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English (en)
French (fr)
Inventor
顾小江
刘晓东
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
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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/CN2019/124447 priority Critical patent/WO2021114121A1/zh
Publication of WO2021114121A1 publication Critical patent/WO2021114121A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details

Definitions

  • the related art sounding device includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system that drives the vibration system to vibrate.
  • the magnetic circuit system includes a lower splint, and a main body fixedly arranged on the lower splint.
  • the sidewall of the basin frame does not leak the upper splint, resulting in poor heat dissipation effect of the sounding device, thereby affecting the sounding device The acoustic effect.
  • the present invention provides a sounding device, which includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound;
  • the magnetic circuit system includes a The lower splint of the basin frame, the main magnet fixedly arranged on the lower splint, the auxiliary magnet arranged on the peripheral side of the main magnet and forming a magnetic gap with the main magnet, and the auxiliary magnet
  • the upper splint on the side of the magnetic steel away from the lower splint, the upper splint includes a main body portion fixed to the auxiliary magnet and a flip extending from the outer edge of the main body in a direction away from the auxiliary magnet
  • the flange is at least partially exposed on the outer surface of the basin frame.
  • the main body part has an annular structure; the flanges include at least two formed by bending and extending from opposite sides of the main body part in a direction away from the secondary magnetic steel.
  • the main body has a rectangular shape, and includes two first main bodies that are arranged opposite to each other in a direction parallel to the long axis of the basin frame and two first main bodies that are arranged opposite to each other in a direction parallel to the short axis of the basin frame.
  • Two body parts, the two flanges respectively bend and extend from the outer edges of the two first body parts in a direction away from the secondary magnetic steel, and are fixed on opposite sides of the long axis of the basin frame.
  • the main body has a rectangular shape, and includes two first main bodies that are arranged opposite to each other in a direction parallel to the long axis of the basin frame and two first main bodies that are arranged opposite to each other in a direction parallel to the short axis of the basin frame.
  • Two body parts, the two flanges are bent and extended from the outer edges of the two second body parts in a direction away from the secondary magnetic steel, and are fixed on opposite sides of the minor axis of the basin frame.
  • the vibration system includes a diaphragm fixed to the frame and a voice coil that drives the diaphragm to vibrate and produce sound;
  • the folding ring part and the side of the folding ring part away from the vibration part are bent and extended and fixed to the fixing part of the basin frame.
  • the flange and the fixing part are arranged directly opposite to each other.
  • the vibration system further includes an elastic conductive sheet and an auxiliary diaphragm attached to the elastic conductive sheet, the elastic conductive sheet is electrically connected to the voice coil and supports the voice coil on the frame .
  • the elastic conductive sheet is fixed to an end of the voice coil away from the diaphragm.
  • the upper splint and the basin frame are integrally injection molded.
  • the upper splint includes a main body portion fixed to the auxiliary magnet and a bending extending from the outer edge of the main body in a direction away from the auxiliary magnet.
  • Flanging the flanging is at least partially exposed on the outer side of the basin frame, and this structure dissipates the heat generated by the generating device during operation to the outside through the flanging, so that the temperature of the sound generating device is It can be kept at a lower level, so that the heat dissipation effect of the sound emitting device is better;
  • the flanging is arranged directly opposite to the fixing part, and the flanging serves to support the diaphragm. As a result, the pressure resistance of the diaphragm is increased, and the acoustic performance of the sound generating device is improved.
  • 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 4 is a partial three-dimensional structure diagram of the sound generating device of the present invention.
  • Figure 5 is a three-dimensional schematic diagram of the upper clamping plate of the sound device of the present invention.
  • the present invention provides a sound generating device 10, which includes a basin frame 1, a vibration system 2 and a magnetic circuit system 3.
  • the vibration system 2 and the magnetic circuit system 3 are respectively supported on the basin frame 1, and the magnetic circuit system 3 drives the vibration system 2 to vibrate and produce sound.
  • the vibration system 2 includes a diaphragm 21 for vibrating and sounding and a voice coil 22 for driving the diaphragm 21 to sound.
  • the diaphragm 21 includes a vibrating portion 211, a folding ring portion 212 extending outward from the edge of the vibrating portion 211, and a side of the folding ring portion 212 that is bent away from the vibrating portion 211. It extends and is fixed to the fixing portion 213 of the basin frame 1.
  • the vibration system 2 further includes an elastic conductive sheet 23 and an auxiliary diaphragm 24 attached to the elastic conductive sheet 23.
  • the elastic conductive sheet 23 is fixed to the voice coil 22 away from the vibration.
  • One end of the diaphragm 21, and the elastic conductive sheet 23 is electrically connected to the voice coil 22 and supports the voice coil 22 on the frame 1.
  • This structure enhances the vibration effect of the diaphragm 21 on the one hand, The acoustic performance of the sound generating device 10 is improved; on the other hand, this structure is used to balance the swing of the vibration system 2 and improve the stability of the sound generating device 10.
  • the magnetic circuit system 3 includes a lower splint 31 fixed on the side of the basin frame 1 away from the diaphragm 21, a main magnet 32 fixedly arranged on the lower splint 31, and a main magnet 32 arranged on the main magnet 32.
  • the upper clamping plate 34 includes a main body part 341 fixed to the auxiliary magnet 33 and a main part 341 away from the auxiliary magnet 33 from the outer edge of the main body part 341.
  • a flange 342 that is bent and extended in the direction, and the flange 342 is at least partially exposed on the outer side of the basin frame 1. This structure dissipates the heat generated by the generating device 10 during operation to the outside through the flange 342 , So that the temperature of the sound generating device can be maintained at a lower level.
  • the main body portion 341 has a ring structure; the flange 342 includes at least two formed by bending and extending the opposite sides of the main body portion 341 in a direction away from the secondary magnet 33.
  • the main body portion 341 is rectangular, and includes two first main body portions 3411 arranged opposite to each other in a direction parallel to the long axis of the basin frame 1 and along a direction parallel to the short axis of the basin frame 1.
  • Two second main body portions 3412 are arranged opposite to each other.
  • the two flanges 342 are respectively bent and extended from the outer edges of the two first main body portions 3411 in a direction away from the secondary magnetic steel 33, and are fixed to the basin
  • the long axis of the frame 1 is on opposite sides.
  • the two flanges 342 can also be bent and extended from the outer edges of the two second main body portions 3412 in a direction away from the secondary magnet 33, and fixed to the short portion of the basin frame 1. Opposite sides of the shaft.
  • the first main body portion 3411 and the second main body portion 3412 are both covered on the secondary magnet 33 for magnetic conduction; on the other hand, the heat generated by the sound device 10 can be passed through The first main body portion 3411 and the second main body portion 3412 are transmitted to the flange 342, and then spread out to the outside through the flange.
  • the upper splint includes a main body portion fixed to the auxiliary magnet and a bending extending from the outer edge of the main body in a direction away from the auxiliary magnet.
  • Flanging the flanging is at least partially exposed on the outer side of the basin frame, and this structure dissipates the heat generated by the generating device during operation to the outside through the flanging, so that the temperature of the sound generating device is It can be kept at a lower level, so that the heat dissipation effect of the sound emitting device is better;
  • the flanging is arranged directly opposite to the fixing part, and the flanging serves to support the diaphragm. As a result, the pressure resistance of the diaphragm is increased, and the acoustic performance of the sound generating device is improved.

Abstract

本实用新型公开一种发声器件，其包括盆架、固定于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统；所述磁路系统包括固定于所述盆架的下夹板、固定设置于所述下夹板的主磁钢、设置在所述主磁钢的周侧且与所述主磁钢间隔形成磁间隙的副磁钢以及位于所述副磁钢远离所述下夹板一侧的上夹板，所述上夹板包括固定于所述副磁钢的主体部和由所述主体部的外侧边缘向远离所述副磁钢方向弯折延伸的翻边，所述翻边至少部分外露于所述盆架的外侧面。与相关技术相比，本实用新型的发声器件散热效果好，声学性能更优。

Description

发声器件 技术领域
本实用新型涉及一种声电领域，尤其涉及一种发声器件。
 背景技术
随着移动互联网时代的到来，智能移动设备的数量不断上升。而在众多移动设备之中，手机无疑是最常见、最便携的移动终端设备。目前，手机的功能极其多样，其中之一便是高品质的音乐功能，因此，用于播放声音的发声器件被大量应用到现在的智能移动设备之中。
相关技术的发声器件包括盆架、分别支撑固定于所述盆架的振动系统和驱动所述振动系统振动的磁路系统，所述磁路系统包括下夹板、固定设置于所述下夹板的主磁钢、环绕所述主磁钢设置且与所述主磁钢间隔形成磁间隙的副磁钢以及盖设于所述副磁钢的呈环状的上夹板。
 技术问题
然而，相关技术的发声器件中，所述盆架与所述上夹板一体注塑完成后，所述盆架的侧壁未将所述上夹板外漏，导致发声器件散热效果差，从而影响发声器件的声学效果。
因此，实有必须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散热效果好且声学性能更优的发声器件。
为了达到上述目的，本实用新型提供了一种发声器件，其包括盆架、固定于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统；所述磁路系统包括固定于所述盆架的下夹板、固定设置于所述下夹板的主磁钢、设置在所述主磁钢的周侧且与所述主磁钢间隔形成磁间隙的副磁钢以及位于所述副磁钢远离所述下夹板一侧的上夹板，所述上夹板包括固定于所述副磁钢的主体部和由所述主体部的外侧边缘向远离所述副磁钢方向弯折延伸的翻边，所述翻边至少部分外露于所述盆架的外侧面。
优选的，所述主体部呈环状结构；所述翻边包括至少两个由所述主体部的相对两侧向远离所述副磁钢方向弯折延伸形成。
优选的，所述主体部呈矩形，其包括沿平行于所述盆架长轴方向间隔相对设置的两个第一主体部及沿平行于所述盆架短轴方向间隔相对设置的两个第二主体部，两个所述翻边分别由两个第一主体部的外侧边缘向远离所述副磁钢方向弯折延伸，且固定于所述盆架的长轴相对两侧。
优选的，所述主体部呈矩形，其包括沿平行于所述盆架长轴方向间隔相对设置的两个第一主体部及沿平行于所述盆架短轴方向间隔相对设置的两个第二主体部，两个所述翻边由两个第二主体部的外侧边缘向远离所述副磁钢方向弯折延伸，且固定于所述盆架的短轴相对两侧。
优选的，所述第一主体部和所述第二主体部均盖设于所述副磁钢。
优选的，所述振动系统包括固定于所述盆架的振膜和驱动所述振膜振动发声的音圈；所述振膜包括振动部、由所述振动部的周缘向外弯折延伸的折环部以及由所述折环部远离所述振动部的一侧弯折延伸并固定于所述盆架的固定部。
优选的，所述翻边与所述固定部正对设置。
优选的，所述振动系统还包括弹性导电片和贴合于所述弹性导电片的辅助振膜，所述弹性导电片与所述音圈电连接并将所述音圈支撑于所述盆架。
优选的，所述弹性导电片固定于所述音圈远离所述振膜的一端。
优选的，所述上夹板和所述盆架为一体注塑成型。
 有益效果
与相关技术相比，本实用新型的发声器件中，所述上夹板包括固定于所述副磁钢的主体部和由所述主体部的外侧边缘向远离所述副磁钢方向弯折延伸的翻边，所述翻边至少部分外露于所述盆架的外侧面，该结构将所述发生器件工作时产生的热量通过所述翻边向外界散出，使所述发声器件工作时的温度能保持在一个较低的水平，从而使所述发声器件的散热效果更优；另一方面，所述翻边与所述固定部正对设置，所述翻边起到支撑所述振膜的效果，增加了所述振膜的耐压性，提高了所述使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为本实用新型发声器件的立体结构分解示意图；
图3为沿图1中A-A线的剖视图；
图4为本实用新型发声器件的部分立体结构示意图；
图5为本实用新型发声器件的上夹板的立体结构示意图。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请同时参阅图1-5，本实用新型提供了一种发声器件10，其包括盆架1、振动系统2以及磁路系统3。所述振动系统2和所述磁路系统3分别支撑于所述盆架1，且所述磁路系统3驱动所述振动系统2振动发声。
所述振动系统2包括用于振动发声的振膜21和驱动所述振膜21发声的音圈22。
具体的，所述振膜21包括振动部211、由所述振动部211的边缘向外弯折延伸的折环部212以及由所述折环部212远离所述振动部211的一侧弯折延伸并固定于所述盆架1的固定部213。
在本实施方式中，所述振动系统2还包括弹性导电片23和贴合于所述弹性导电片23的辅助振膜24，所述弹性导电片23固定于所述音圈22远离所述振膜21的一端，且所述弹性导电片23与所述音圈22电连接并将所述音圈22支撑于所述盆架1，该结构一方面加强了所述振膜21的振动效果，改善所述发声器件10的声学性能；另一方面该结构用于平衡所述振动系统2的摇摆，提高了所述发声器件10的稳定性。
所述磁路系统3包括固定于所述盆架1远离所述振膜21一侧的下夹板31、固定设置于所述下夹板31的主磁钢32、设置在所述主磁钢32的周侧且与所述主磁钢32间隔形成磁间隙的副磁钢33以及位于所述副磁钢33远离所述下夹板31一侧的上夹板34。
在本实施方式中，所述上夹板34和所述盆架1为一体注塑成型，增加了所述盆架1的整体刚度，使所述发声器件10的声学性能更优。
为了使所述发声器件10的散热效果更优，所述上夹板34包括固定于所述副磁钢33的主体部341和由所述主体部341的外侧边缘向远离所述副磁钢33的方向弯折延伸的翻边342，所述翻边342至少部分外露于所述盆架1的外侧面，该结构将所述发生器件10工作时产生的热量通过所述翻边342向外界散出，使所述发声器件工作时的温度能保持在一个较低的水平。
具体的，所述主体部341呈环状结构；所述翻边342包括至少两个由所述主体部341的相对两侧向远离所述副磁钢33方向弯折延伸形成。
在本实施方式中，所述主体部341呈矩形，其包括沿平行于所述盆架1长轴方向间隔相对设置的两个第一主体部3411及沿平行于所述盆架1短轴方向间隔相对设置的两个第二主体部3412，两个所述翻边342分别由两个第一主体部3411的外侧边缘向远离所述副磁钢33方向弯折延伸，且固定于所述盆架1的长轴相对两侧。作为一种可选方式，两个所述翻边342也可以由两个第二主体部3412的外侧边缘向远离所述副磁钢33方向弯折延伸，且固定于所述盆架1的短轴的相对两侧。
在本实施方式中，所述第一主体部3411和所述第二主体部3412均盖设于所述副磁钢33，用于导磁；另一方面，可以将发声器件10产生的热量通过所述第一主体部3411和所述第二主体部3412传递至所述翻边342，再通过所述翻边向外界散出。
更优的，所述翻边342与所述固定部213正对设置，所述翻边342起到支撑所述振膜21的效果，增加了所述振膜21的耐压性，提高了所述使发声器件10的声学性能。
与相关技术相比，本实用新型的发声器件中，所述上夹板包括固定于所述副磁钢的主体部和由所述主体部的外侧边缘向远离所述副磁钢方向弯折延伸的翻边，所述翻边至少部分外露于所述盆架的外侧面，该结构将所述发生器件工作时产生的热量通过所述翻边向外界散出，使所述发声器件工作时的温度能保持在一个较低的水平，从而使所述发声器件的散热效果更优；另一方面，所述翻边与所述固定部正对设置，所述翻边起到支撑所述振膜的效果，增加了所述振膜的耐压性，提高了所述使发声器件的声学性能。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (10)

  1. 一种发声器件，其包括盆架、固定于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统；所述磁路系统包括固定于所述盆架的下夹板、固定设置于所述下夹板的主磁钢、设置在所述主磁钢的周侧且与所述主磁钢间隔形成磁间隙的副磁钢以及位于所述副磁钢远离所述下夹板一侧的上夹板，其特征在于，所述上夹板包括固定于所述副磁钢的主体部和由所述主体部的外侧边缘向远离所述副磁钢方向弯折延伸的翻边，所述翻边至少部分外露于所述盆架的外侧面。
  2. 根据权利要求1所述的发声器件，其特征在于，所述主体部呈环状结构；所述翻边包括至少两个由所述主体部的相对两侧向远离所述副磁钢方向弯折延伸形成。
  3. 根据权利要求2所述的发声器件，其特征在于，所述主体部呈矩形，其包括沿平行于所述盆架长轴方向间隔相对设置的两个第一主体部及沿平行于所述盆架短轴方向间隔相对设置的两个第二主体部，两个所述翻边分别由两个第一主体部的外侧边缘向远离所述副磁钢方向弯折延伸，且固定于所述盆架的长轴相对两侧。
  4. 根据权利要求2所述的发声器件，其特征在于，所述主体部呈矩形，其包括沿平行于所述盆架长轴方向间隔相对设置的两个第一主体部及沿平行于所述盆架短轴方向间隔相对设置的两个第二主体部，两个所述翻边由两个第二主体部的外侧边缘向远离所述副磁钢方向弯折延伸，且固定于所述盆架的短轴相对两侧。
  5. 根据权利要求3或4所述的发声器件，其特征在于，所述第一主体部和所述第二主体部均盖设于所述副磁钢。
  6. 根据权利要求1所述的发声器件，其特征在于，所述振动系统包括固定于所述盆架的振膜和驱动所述振膜振动发声的音圈；所述振膜包括振动部、由所述振动部的边缘向外弯折延伸的折环部以及由所述折环部远离所述振动部的一侧弯折延伸并固定于所述盆架的固定部。
  7. 根据权利要求6所述的发声器件，其特征在于，所述翻边与所述固定部正对设置。
  8. 根据权利要求6所述的发声器件，其特征在于，所述振动系统还包括弹性导电片和贴合于所述弹性导电片的辅助振膜，所述弹性导电片与所述音圈电连接并将所述音圈支撑于所述盆架。
  9. 根据权利要求8所述的发声器件，其特征在于，所述弹性导电片固定于所述音圈远离所述振膜的一端。
  10. 根据权利要求1所述的发声器件，其特征在于，所述上夹板和所述盆架为一体注塑成型。
PCT/CN2019/124447 2019-12-11 2019-12-11 发声器件 WO2021114121A1 (zh)

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