WO2022007165A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2022007165A1
WO2022007165A1 PCT/CN2020/113928 CN2020113928W WO2022007165A1 WO 2022007165 A1 WO2022007165 A1 WO 2022007165A1 CN 2020113928 W CN2020113928 W CN 2020113928W WO 2022007165 A1 WO2022007165 A1 WO 2022007165A1
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WO
WIPO (PCT)
Prior art keywords
sound
frame
fixed
diaphragm
magnetic
Prior art date
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PCT/CN2020/113928
Other languages
English (en)
French (fr)
Inventor
曹成铭
王磊
张凡
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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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
Publication of WO2022007165A1 publication Critical patent/WO2022007165A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • 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-emitting device used in electronic sound box products.
  • the sound-generating device of the related art includes a basin frame, a vibration system respectively fixed to the basin frame, and a magnetic circuit system having a magnetic gap.
  • the vibration system includes a vibrating membrane fixed on the basin frame and a voice coil fixed on the vibrating membrane and inserted in the magnetic gap to drive the vibrating membrane to vibrate and produce sound.
  • a folded ring portion extending outward from the periphery of the vibrating portion and a fixing portion extending from the folded ring portion in the direction of the basin frame and fixed to the basin frame, the vibrating portion is fixed to the voice coil away from the one end of the magnetic circuit system.
  • the magnetic circuit system includes a magnetic yoke, a main magnetic steel and a secondary magnetic steel fixed on the magnetic yoke. The secondary magnetic steel is spaced apart from the main magnetic steel and together form the magnetic gap.
  • the voice coil is annular, and the vibrating portion is fixed to the voice coil.
  • This structure ensures the integrity of the ring portion, but the outer portion of the voice coil is The diameter is limited by the inner diameter of the vibrating part, the voice coil cannot exceed the inner diameter of the vibrating part, otherwise the movement of the ring part will be limited, and the size of the main magnet will be limited, The size of the magnetic circuit cannot be enlarged, so that the acoustic performance of the sound-emitting device cannot be enhanced.
  • the purpose of the present invention is to provide a sound-generating device which can maximize the magnetic circuit and has excellent acoustic performance.
  • the present invention provides a sound-generating device, which includes a vibration system and a magnetic circuit system having a magnetic gap and driving the vibration system to vibrate;
  • the fixed portion extending in the direction of the vibrating portion, the frame is attached to the side of the vibrating portion close to the magnetic circuit system, and the frame is at least in the orthographic projection of the vibrating film along the vibration direction of the vibrating film.
  • the voice coil is fixed on the skeleton and suspended in the magnetic gap by the skeleton support, and the voice coil is at least partially disposed opposite to the folded ring part.
  • the skeleton includes a ring-shaped skeleton body fixed on one end of the voice coil close to the vibrating membrane, and a skeleton fixing portion extending from the skeleton body to the inner side thereof, and opposite sides of the skeleton body
  • the skeleton fixing part is arranged at an interval from the folded ring part and falls into the folded ring part along the orthographic projection of the vibrating direction to the vibrating film, and the frame fixing part is attached and fixed to the vibration part.
  • the skeleton further includes a skeleton extending portion extending from the other opposite sides of the skeleton body in a direction away from the vibrating membrane, and the skeleton extending portion is attached to the outer peripheral side of the voice coil.
  • the vibration system further includes an elastic member disposed opposite to the diaphragm
  • the sound-emitting device further includes a basin frame, and the fixing portion is fixed to the basin frame; one end of the elastic member is fixed to the basin frame.
  • the other end of the elastic piece is fixed on the frame extension part.
  • the skeleton body has a rectangular structure, and the opposite sides of the long axis of the skeleton body fall into the folded ring portion along the orthographic projection of the vibrating film along the vibration direction; the skeleton extension portion is formed by the The short axis of the skeleton body is formed by extending from opposite sides.
  • the vibrating film further comprises a dome fixed on a side of the vibrating portion close to the magnetic circuit system, and the frame fixing portion is fixed on the dome.
  • the sound-generating device further comprises a sound-conducting shell covered and fixed on the side of the fixing portion away from the basin frame, the sound-conducting shell and the diaphragm together enclose a sound-guiding cavity, and the sound-guiding shell A sound guide hole is provided therethrough, and the sound guide hole communicates the sound guide cavity with the outside world.
  • the folded ring portion has an arc-shaped structure formed by concave in a direction away from the magnetic circuit system.
  • the elastic member includes a first fixing arm fixed to the basin frame, a second fixing arm fixed to the frame extension, and a spring connecting the second fixing arm to the first fixing arm arm.
  • the magnetic circuit system includes a magnetic yoke and a main magnet steel fixed to the magnetic yoke
  • the magnetic yoke includes a magnetic yoke body and a flange extending from the magnetic yoke body to the direction of the basin frame, so
  • the main magnetic steel is fixed on the yoke body, and the flange is spaced from the main magnetic steel and forms the magnetic gap with the main magnetic steel.
  • the skeleton is arranged to be attached to the vibration part, so that the voice coil is fixed on the skeleton and suspended in the magnetic gap through the skeleton support, and
  • the skeleton is arranged to at least drop into the folded ring portion along the orthographic projection of the diaphragm along the vibration direction of the diaphragm, and at least part of the voice coil is arranged facing the folded ring portion.
  • This structure enables the outer diameter of the voice coil to be larger than the inner diameter of the vibrating part, so that a larger magnetic circuit can be arranged inside the voice coil, that is to say, the inner side of the The size of the steel is larger, so that the size of the magnetic gap formed by the magnetic steel becomes larger, and the magnetic circuit of the magnetic circuit system can be maximized, so that the magnetic field lines of the magnetic circuit system are stronger and the driving force is stronger, so that the The acoustic performance of the sound-emitting device is excellent.
  • Fig. 1 is the stereoscopic structure schematic diagram of the sound-emitting device of the present invention
  • FIG. 2 is an exploded view of a partial three-dimensional structure of the sound-emitting device of the present invention
  • Fig. 3 is a sectional view along line A-A in Fig. 1;
  • Fig. 4 is a sectional view along line B-B in Fig. 1;
  • FIG. 5 is an exploded view of the three-dimensional structure of the skeleton of the sound-emitting device of the present invention.
  • FIG. 6 is a schematic diagram of the assembled three-dimensional structure of the dome, the skeleton, the voice coil and the elastic member of the sound-emitting device of the present invention
  • FIG. 7 is a cross-sectional view of another embodiment of FIG. 3 .
  • the present invention provides a sound-generating device 100 , and the sound-generating device 100 includes a vibration system 2 and a magnetic circuit system 3 .
  • the magnetic circuit system 3 has a magnetic gap 30 , and the magnetic circuit system 3 includes a main magnet 32 forming the magnetic gap 30 .
  • the magnetic circuit system 3 drives the vibration system 2 to vibrate and sound.
  • the sound-generating device 100 further includes a basin frame 1 .
  • the basin frame 1 is used to fix the vibration system 2 and the magnetic circuit system 3 .
  • the vibration system 2 includes a diaphragm 21 , a voice coil 22 and a frame 23 .
  • the diaphragm 21 is used for vibrating and producing sound.
  • the diaphragm 21 is fixed to the basin frame 1 .
  • the diaphragm 21 may also be fixed to the magnetic circuit system 3 , for example, a secondary magnetic steel or a magnetic yoke in the magnetic circuit system 3 . of flanging, etc.
  • the vibrating membrane 21 includes a vibrating portion 213 , a ring portion 212 extending outward from the periphery of the vibrating portion 213 , a fixing portion 211 extending away from the vibrating portion 213 from the ring portion 212 , and a fixing portion 211 .
  • the spherical top 214 on the side of the vibrating portion 213 close to the magnetic circuit system 3 .
  • the fixing portion 211 extends from the folded ring portion 212 in the direction of the basin frame 1 and is fixed to the basin frame 1 .
  • the voice coil 22 is inserted into the magnetic gap 30 to drive the diaphragm 21 to vibrate and produce sound.
  • the voice coil 22 is annular.
  • the main magnet 32 is located inside the voice coil 22 .
  • the frame 23 is attached to the side of the vibration part 213 close to the magnetic circuit system 3 .
  • the voice coil 22 is fixed to the frame 23 and is supported and suspended in the magnetic gap 30 by the frame 23 .
  • the magnetic circuit system 3 drives the voice coil 22 to vibrate through the magnetic gap 30
  • the voice coil 22 drives the diaphragm 21 to vibrate and produce sound through the skeleton 23 .
  • the frame 23 at least falls into the ring portion 212 along the vibration direction of the diaphragm 21 to the orthographic projection of the diaphragm 21 .
  • This structure enables the outer diameter of the voice coil 22 to be larger and exceeds the inner diameter of the vibrating portion 213 , so that a larger magnetic circuit can be arranged inside the voice coil 22 , that is, the inner side of the voice coil 22
  • the size of the main magnetic steel 32 that can be set is larger, so that the size of the magnetic gap 30 formed by the main magnetic steel 32 becomes larger, and the magnetic circuit of the magnetic circuit system 3 can be maximized, so that the magnetic The magnetic field lines of the circuit system 3 are stronger and the driving force is stronger, so that the acoustic performance of the sound-emitting device 100 is excellent.
  • the frame 23 includes a frame body 231 and a frame fixing portion 232 .
  • the frame body 231 is fixed to one end of the voice coil 22 close to the diaphragm 21 .
  • the skeleton body 231 is annular.
  • the ring shape is a ring shape with an integral structure. Of course, it is not limited to this, and the ring shape can also be a plurality of structures arranged at intervals and together to form a ring structure.
  • Two opposite sides of the frame body 231 are spaced apart from the ring portion 212 .
  • the orthographic projection of the frame body 231 to the diaphragm 21 along the vibration direction falls into the ring portion 212 .
  • the size of the voice coil 22 is enlarged, so that the size of the main magnetic steel 32 is also enlarged, so that the entire skeleton body 231 does not need to face the ring portion 212 .
  • This structure also makes the orthographic projections of the opposite sides of the voice coil 22 fixed to the skeleton body 231 also fall into the ring portion 212 .
  • the frame fixing portion 232 extends from the frame body 231 to the inner side thereof. In this embodiment, the frame fixing portion 232 is bent and extended from the frame body 231 in a direction away from the basin frame 1 .
  • the frame fixing portion 232 is attached and fixed to the vibrating portion 213 .
  • the frame fixing portion 232 is fixed to the dome 214 .
  • This structure enables the voice coil 22 to drive the vibration part 213 to vibrate and produce sound through the skeleton body 231 and the skeleton fixing part 232 in sequence. Since the frame fixing portion 232 is located at the end of the frame body 231 away from the basin frame 1 , that is, the frame fixing portion 232 is farther from the basin frame 1 than the voice coil 22 . That is, the distance between the vibration part 213 and the frame fixing part 232 and the basin frame 1 is longer than the distance between the voice coil 22 and the basin frame 1 .
  • the frame fixing portion 232 includes a first segment 2321 and a second segment 2322 .
  • the first section 2321 is bent and extended away from the magnetic circuit system 3 from the skeleton body 231 .
  • the first section 2321 increases the distance between the diaphragm 21 and the voice coil 22 , thereby increasing the movable space of the diaphragm 21 , especially the movable space of the ring portion 212 . , thereby improving the reliability of the diaphragm 21 .
  • the second section 2322 is bent and extended from the first section 2321 in a direction away from the basin frame 1 .
  • the second segment 2322 is fixed to the vibration part 213 . That is, the second segment 2322 is fixed to the vibration part 213 by being fixed to the dome 214 .
  • the sound-generating device further includes a sound-guiding shell 4 which is covered and fixed on the side of the fixing portion 211 away from the basin frame 1 .
  • the sound guide shell 4 and the diaphragm 21 together form a sound guide cavity 40 .
  • the sound guide shell 4 is provided with a sound guide hole 41 therethrough.
  • the sound guide hole 41 communicates the sound guide cavity 40 with the outside world.
  • the position setting of the sound guide holes 41 can realize sound emitting structures in different directions.
  • the sound guide holes 41 and the diaphragm 21 are arranged facing each other to form a front sound emitting structure.
  • the folded ring portion 212 has an arc-shaped structure formed by concave in the direction away from the magnetic circuit system 3 .
  • the ring portion 212 is spaced apart from the sound guide shell 4 .
  • This structure improves the reliability of the diaphragm 21 under the protection of the sound guide shell 4 .
  • the sound guide hole 41 can also be formed on the same side of the sound guide shell 4 as the basin frame 1 to form a side sound emitting structure, which is convenient for use when the front sound is blocked, and the use is flexible Sex is higher.
  • the vibrating system 2 further includes an elastic member 24 disposed opposite to the vibrating membrane 21 at a distance.
  • the elastic member 24 includes a first fixing arm 241 fixed to the basin frame 1 , an elastic arm 242 bent and extended from the first fixing arm 241 to the direction of the voice coil 22 , and a The elastic arm 242 bends and extends the second fixed arm 243 .
  • the elastic arm 242 connects the second fixing arm 243 to the first fixing arm 241 to realize elastic connection.
  • the elastic member 24 is a flexible circuit board, and the voice coil 22 is electrically connected to the elastic member 24 . On the one hand, it is used to provide support for the voice coil 22; its reliability.
  • the elastic members 24 include two, and the two elastic members 24 are respectively disposed on opposite sides of the voice coil 22 , and the structure of the double elastic members has a more stable supporting effect on the voice coil 22 . , the ability of the structure to suppress the swing of the voice coil 22 is optimal.
  • the frame 23 further includes a frame extension portion 233 that is bent and extended from the frame body 231 in the direction of the magnetic circuit system 3 .
  • the frame body 231 has a rectangular structure.
  • the opposite sides of the long axis of the skeleton body 231 fall into the ring portion 212 in the orthographic projection of the vibrating film 21 along the vibration direction.
  • This structure makes the size of the main magnetic steel 32 set on the long axis of the skeleton body 231 longer than the short axis of the skeleton body 231 , which is beneficial to improve the driving force of the magnetic circuit.
  • the frame extending portion 233 is formed by extending from opposite sides of the short axis of the frame body 231 .
  • This structure enables the elastic members 24 to be disposed on opposite sides of the short axis of the skeleton body 231, which can effectively utilize the space of the short axis of the skeleton body 231, thereby making the installation of the sounding device 100 more compact, and has It is beneficial to optimize the internal structure, so that the volume of the sound-emitting device 100 is smaller.
  • the frame extension portion 233 includes a third section 2331 bent and extended from the frame body 231 in the direction of the magnetic circuit system 3 , and a third section 2331 bent in the direction of the basin frame 1 from the third section 2331 . Fold the extended fourth segment 2332.
  • the frame extension portion 233 is disposed outside the voice coil 22 , one end of the elastic member 24 is fixed to the basin frame 1 , and the other end of the elastic member 24 is fixed to the frame extension portion 233 .
  • the second fixing arm 243 is fixed to the frame extending portion 233 .
  • the fourth section 2332 is fixed to the elastic member 24 , that is, the fourth section 2332 is fixed to the frame extending portion 233 . This structure enables the elastic member 24 to prevent the voice coil 22 from swinging laterally, thereby achieving a stable supporting effect of the voice coil 22 .
  • the magnetic circuit system 3 includes a magnetic yoke 31 and the main magnetic steel 32 fixed to the magnetic yoke 31 .
  • the magnetic yoke 31 includes a magnetic yoke body 311 and a flange 312 extending from the magnetic yoke body 311 toward the basin frame 1 .
  • the main magnet 32 is fixed to the yoke body 311 .
  • the flange 312 is spaced from the main magnet 32 and forms the magnetic gap 30 with the main magnet 32 .
  • FIG. 7 is a cross-sectional view of another embodiment of FIG. 3 .
  • a sound-emitting device 100a is provided, The difference between this embodiment and the embodiment shown in FIG. 3 is that the direction of the arc structure of the folded ring portion is different.
  • the folded ring portion 212a has an arc-shaped structure formed by concave in a direction close to the magnetic circuit system 3a.
  • the ring portion 212a is spaced from the first segment 2321a. This structure reduces the height of the ring portion 212a on the sounding device 100a, and the installation of the diaphragm 21a on the sounding device 100a can make full use of the internal space of the sounding device 100a, so that the sounding device 100a has a good effect of lightening and thinning.
  • the skeleton is arranged to be attached to the vibration part, so that the voice coil is fixed on the skeleton and suspended in the magnetic gap through the skeleton support, and
  • the skeleton is arranged to at least drop into the folded ring portion along the orthographic projection of the diaphragm along the vibration direction of the diaphragm, and at least part of the voice coil is arranged facing the folded ring portion.
  • This structure enables the outer diameter of the voice coil to be larger than the inner diameter of the vibrating part, so that a larger magnetic circuit can be arranged inside the voice coil, that is to say, the inner side of the The size of the steel is larger, so that the size of the magnetic gap formed by the magnetic steel becomes larger, and the magnetic circuit of the magnetic circuit system can be maximized, so that the magnetic field lines of the magnetic circuit system are stronger and the driving force is stronger, so that the The acoustic performance of the sound-emitting device is excellent.

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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

一种发声器件，其包括振动系统和具有磁间隙且驱动振动系统振动的磁路系统；振动系统包括用于振动发声的振膜、插设于磁间隙以驱动振膜振动发声的音圈以及骨架，振膜包括振动部、由振动部的周缘向外延伸的折环部以及由折环部向远离振动部方向延伸的固定部，骨架贴合于振动部靠近磁路系统的一侧，骨架沿振膜的振动方向向振膜的正投影至少部分落入折环部，音圈固定于骨架并通过骨架支撑悬置于磁间隙内，音圈至少部分与折环部正对设置。

Description

发声器件 技术领域
本实用新型涉及电声转换领域，尤其涉及一种运用于电子音箱产品的发声器件。
 背景技术
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。
相关技术的所述发声器件包括盆架和分别固定于所述盆架的振动系统及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的振膜以及固定于所述振膜并插设于所述磁间隙以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延伸的折环部以及由所述折环部向所述盆架方向延伸并固定于所述盆架的固定部，所述振动部固定于所述音圈远离所述磁路系统的一端。所述磁路系统包括磁轭、固定于所述磁轭的主磁钢和副磁钢。所述副磁钢与所述主磁钢间隔并共同围成所述磁间隙。
 技术问题
然而，相关技术的所述发声器件中，所述音圈呈环状，所述振动部固定于所述音圈，该结构保证了所述折环部的完整性，但是所述音圈的外径收到所述振动部的内径大小限制，所述音圈不能超过所述振动部的内径大小，否则造成所述折环部的活动受到限，从而导致所述主磁钢的尺寸受限，不能将磁路尺寸做大，从而影响所述发声器件的声学性能无法增强。
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磁路可最大化且声学性能优的发声器件。
为了达到上述目的，本实用新型提供了一种发声器件，其包括振动系统和具有磁间隙且驱动所述振动系统振动的磁路系统；所述振动系统包括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发声的音圈以及骨架，所述振膜包括振动部、由所述振动部的周缘向外延伸的折环部以及由所述折环部向远离所述振动部方向延伸的固定部，所述骨架贴合于所述振动部靠近所述磁路系统的一侧，所述骨架沿所述振膜的振动方向向所述振膜的正投影至少部落入所述折环部，所述音圈固定于所述骨架并通过所述骨架支撑悬置于所述磁间隙内，所述音圈至少部分与所述折环部正对设置。
优选的，所述骨架包括固定于所述音圈靠近所述振膜一端的呈环状的骨架本体和由所述骨架本体向其内侧延伸的骨架固定部，所述骨架本体的其中相对两侧与所述折环部间隔设置且沿所述振动方向向所述振膜的正投影落入所述折环部，所述骨架固定部贴合固定于所述振动部。
优选的，所述骨架还包括由所述骨架本体的另外相对两侧向远离所述振膜方向延伸的骨架延伸部，所述骨架延伸部贴合于所述音圈的外周侧。
优选的，所述振动系统还包括与所述振膜相对间隔设置的弹性件，所述发声器件还包括盆架，所述固定部固定于所述盆架；所述弹性件的一端固定于所述盆架，所述弹性件的另一端固定于所述骨架延伸部。
优选的，所述骨架本体呈矩形结构，所述骨架本体的长轴相对两侧沿所述振动方向向所述振膜的正投影落入所述折环部；所述骨架延伸部由所述骨架本体的短轴相对两侧延伸形成。
优选的，所述振膜还包括固定于所述振动部靠近所述磁路系统一侧的球顶，所述骨架固定部固定于所述球顶。
优选的，所述发声器件还包括盖设固定于所述固定部远离所述盆架一侧的导声壳，所述导声壳与所述振膜共同围成导声腔，所述导声壳设有贯穿其上的导声孔，所述导声孔将所述导声腔与外界连通。
优选的，所述折环部呈向远离所述磁路系统的方向凹陷形成的弧形结构。
优选的，所述弹性件包括固定于所述盆架的第一固定臂、固定于所述骨架延伸部的第二固定臂以及将所述第二固定臂连接至所述第一固定臂的弹臂。
优选的，所述磁路系统包括磁轭和固定于所述磁轭的主磁钢，所述磁轭包括磁轭本体和由所述磁轭本体向所述盆架方向延伸的翻边，所述主磁钢固定于所述磁轭本体，所述翻边与所述主磁钢间隔设置并与所述主磁钢形成所述磁间隙。
 有益效果
与相关技术相比，本实用新型的发声器件设置所述骨架贴合于所述振动部，使所述音圈固定于所述骨架并通过所述骨架支撑悬置于所述磁间隙内，并设置所述骨架沿所述振膜的振动方向向所述振膜的正投影至少部落入所述折环部，同时所述音圈至少部分与所述折环部正对设置。该结构使得所述音圈的外径可以做大并超过所述振动部的内径，使得所述音圈的内侧可以设置更大的磁路，也就是说所述音圈的内侧可以设置的磁钢尺寸更大，从而使得磁钢形成的所述磁间隙尺寸变大，所述磁路系统的磁路可最大化，从而使得所述磁路系统的磁力线更强且驱动力更强，从而使得发声器件的声学性能优。
 附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本实用新型发声器件的立体结构示意图；
图2为本实用新型发声器件的部分立体结构分解图；
图3为沿图1中A-A线的剖示图；
图4为沿图1中B-B线的剖示图；
图5为本实用新型发声器件的骨架的立体结构分解图；
图6为本实用新型发声器件的球顶、骨架、音圈及弹性件的组装立体结构示意图；
图7为图3的另一种实施例的剖示图。
 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1-6，本实用新型提供了一种发声器件100，所述发声器件100包括振动系统2和磁路系统3。
所述磁路系统3具有磁间隙30，所述磁路系统3包括形成所述磁间隙30的主磁钢32。所述磁路系统3驱动所述振动系统2振动发声。
本实施方式中，所述发声器件100还包括盆架1。所述盆架1用于固定所述振动系统2和所述磁路系统3。
所述振动系统2包括振膜21、音圈22以及骨架23。
所述振膜21用于振动发声。本实施方式中，所述振膜21固定于所述盆架1。当然，不限于此，在没有设置所述盆架1的实施例中，所述振膜21也可以固定于所述磁路系统3，例如所述磁路系统3中的副磁钢或者磁轭的翻边等。
具体的，所述振膜21包括振动部213、由所述振动部213的周缘向外延伸的折环部212、由所述折环部212向远离所述振动部213的固定部211以及固定于所述振动部213靠近所述磁路系统3一侧的球顶214。本实施方式中，所述固定部211由所述折环部212向所述盆架1方向延伸并固定于所述盆架1。
所述音圈22插设于所述磁间隙30以驱动所述振膜21振动发声。本实施方式中，所述音圈22呈环状。所述主磁钢32位于所述音圈22的内侧。
所述骨架23贴合于所述振动部213靠近所述磁路系统3的一侧。所述音圈22固定于所述骨架23并通过所述骨架23支撑悬置于所述磁间隙30内。所述磁路系统3通过所述磁间隙30驱动所述音圈22振动，所述音圈22通过所述骨架23带动所述振膜21振动发声。
所述骨架23沿所述振膜21的振动方向向所述振膜21的正投影至少部落入所述折环部212，所述音圈22至少部分与所述折环部212正对设置。该结构使得所述音圈22的外径可以做大并超过所述振动部213的内径，使得所述音圈22的内侧可以设置更大的磁路，也就是说所述音圈22的内侧可以设置的所述主磁钢32尺寸更大，从而使得所述主磁钢32形成的所述磁间隙30尺寸变大，所述磁路系统3的磁路可最大化，从而使得所述磁路系统3的磁力线更强且驱动力更强，从而使得发声器件100的声学性能优。
具体的，所述骨架23包括骨架本体231和骨架固定部232。
所述骨架本体231固定于所述音圈22靠近所述振膜21一端。所述骨架本体231呈环状。所述环状在本实施方式中为一整体结构的环形。当然，不限于此，所述环状也可以为多段结构间隔设置并共同围成一个环形结构。
所述骨架本体231的其中相对两侧与所述折环部212间隔设置。所述骨架本体231沿所述振动方向向所述振膜21的正投影落入所述折环部212。该结构实现所述音圈22扩大尺寸，从而使得所述主磁钢32也扩大尺寸，从而不需要整体所述骨架本体231都正对所述折环部212。该结构也同时使得所述音圈22固定于所述骨架本体231的相对两侧的正投影也落入所述折环部212。
所述骨架固定部232由所述骨架本体231向其内侧延伸。本实施方式中，所述骨架固定部232由所述骨架本体231向远离所述盆架1的方向弯折延伸。所述骨架固定部232贴合固定于所述振动部213。本实施方式中，所述骨架固定部232固定于所述球顶214。该结构使得所述音圈22依次通过所述骨架本体231和所述骨架固定部232驱动所述振动部213振动发声。由于所述骨架固定部232位于所述骨架本体231远离所述盆架1的一端，也就是所述骨架固定部232相对于所述音圈22离所述盆架1更远。即所述振动部213与所述骨架固定部232连接的部分与所述盆架1的距离比所述音圈22与盆架1的距离长。
本实施方式中，所述骨架固定部232包括第一段2321和第二段2322。
所述第一段2321由所述骨架本体231向远离所述磁路系统3弯折延伸。所述第一段2321使得所述振膜21与所述音圈22之间的距离增大，从而使得所述振膜21的活动空间变大，尤其所述折环部212的活动空间变大，从而提高了所述振膜21的可靠性。
所述第二段2322由所述第一段2321向远离所述盆架1的方向弯折延伸。所述第二段2322固定于所述振动部213。即所述第二段2322通过固定于所述球顶214实现固定于所述振动部213。
为实现发声结构灵活多变，本实施方式中，所述发声器件还包括盖设固定于所述固定部211远离所述盆架1一侧的导声壳4。所述导声壳4与所述振膜21共同围成导声腔40。所述导声壳4设有贯穿其上的导声孔41。所述导声孔41将所述导声腔40与外界连通。所述导声孔41的位置设置可以实现不同的方向发声结构，比如所述导声孔41与所述振膜21正对设置形成正面发声结构。其中，所述折环部212呈向远离所述磁路系统3的方向凹陷形成的弧形结构。所述折环部212与所述导声壳4间隔设置。该结构通过所述导声壳4的保护下，提高所述振膜21的可靠性。当然，不限于此，所述导声孔41也可以通过设置于所述导声壳4的与所述盆架1的同一侧形成侧面发声结构，便于正面发声被挡的情况下使用，使用灵活性更高。
本实施方式中，所述振动系统2还包括与所述振膜21相对间隔设置的弹性件24。具体的，所述弹性件24包括固定于所述盆架1的第一固定臂241、由所述第一固定臂241向所述音圈22的方向弯折延伸的弹臂242以及由所述弹臂242弯折延伸的第二固定臂243。所述弹臂242将所述第二固定臂243连接至所述第一固定臂241以实现弹性连接。
其中，所述弹性件24为柔性线路板，所述音圈22与所述弹性件24电连接。一方面用于提供对所述音圈22的支撑，另一方面为所述音圈22引入外部电信号，避免了通过引线为所述音圈22引入外部电信号时容易断线的问题，提高其可靠性。
本实施方式中，所述弹性件24包括两个，两个所述弹性件24分别设置于所述音圈22的相对两侧，双弹性件的结构对所述音圈22的支撑效果更稳定，该结构的抑制音圈22摇摆的能力最优。
本实施方式中，所述骨架23还包括由所述骨架本体231向所述磁路系统3的方向弯折延伸的骨架延伸部233。
本实施方式中，所述骨架本体231呈矩形结构。所述骨架本体231的长轴相对两侧沿所述振动方向向所述振膜21的正投影落入所述折环部212。该结构使得所述骨架本体231的长轴设置的所述主磁钢32的尺寸相对于所述骨架本体231的短轴长，有利于提高磁路的驱动力。同时所述骨架延伸部233由所述骨架本体231的短轴相对两侧延伸形成。该结构使得所述弹性件24设置于所述骨架本体231的短轴相对两侧，可以有效利用所述骨架本体231的短轴的空间，从而使得所述发声器件100的安装更为紧凑，有利于优化内部结构，使得所述发声器件100的体积更小。
具体的，所述骨架延伸部233包括由所述骨架本体231向所述磁路系统3的方向弯折延伸的第三段2331和由所述第三段2331向所述盆架1的方向弯折延伸的第四段2332。
所述骨架延伸部233设置于所述音圈22的外侧，所述弹性件24的一端固定于所述盆架1，所述弹性件24的另一端固定于所述骨架延伸部233。具体的，第二固定臂243固定于所述骨架延伸部233。所述第四段2332固定于所述弹性件24，即所述第四段2332固定于所述骨架延伸部233。该结构而使得所述弹性件24防止所述音圈22横向摆动，从而实现所述音圈22的支撑效果稳定。
本实施方式中，所述磁路系统3包括磁轭31和固定于所述磁轭31的所述主磁钢32。所述磁轭31包括磁轭本体311和由所述磁轭本体311向所述盆架1方向延伸的翻边312。所述主磁钢32固定于所述磁轭本体311。所述翻边312与所述主磁钢32间隔设置并与所述主磁钢32形成所述磁间隙30。当然，采用副磁钢替代所述翻边312也是可以的。
请参阅图7所示，图7为图3的另一种实施例的剖示图。在另一种实施例中提供一种发声器件100a, 该实施方式与图3所示的实施方式区别在于，折环部的弧形结构方向不同。
具体的，折环部212a呈向靠近磁路系统3a的方向凹陷形成的弧形结构。所述折环部212a与第一段2321a间隔设置。该结构使得减少折环部212a在发声器件100a的高度，振膜21a的安装于发声器件100a可以充分利用发声器件100a的内部空间，使得发声器件100a的轻薄化效果好。
与相关技术相比，本实用新型的发声器件设置所述骨架贴合于所述振动部，使所述音圈固定于所述骨架并通过所述骨架支撑悬置于所述磁间隙内，并设置所述骨架沿所述振膜的振动方向向所述振膜的正投影至少部落入所述折环部，同时所述音圈至少部分与所述折环部正对设置。该结构使得所述音圈的外径可以做大并超过所述振动部的内径，使得所述音圈的内侧可以设置更大的磁路，也就是说所述音圈的内侧可以设置的磁钢尺寸更大，从而使得磁钢形成的所述磁间隙尺寸变大，所述磁路系统的磁路可最大化，从而使得所述磁路系统的磁力线更强且驱动力更强，从而使得发声器件的声学性能优。
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，其包括振动系统和具有磁间隙且驱动所述振动系统振动的磁路系统；所述振动系统包括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发声的音圈以及骨架，所述振膜包括振动部、由所述振动部的周缘向外延伸的折环部以及由所述折环部向远离所述振动部方向延伸的固定部，所述骨架贴合于所述振动部靠近所述磁路系统的一侧，其特征在于，所述骨架沿所述振膜的振动方向向所述振膜的正投影至少部落入所述折环部，所述音圈固定于所述骨架并通过所述骨架支撑悬置于所述磁间隙内，所述音圈至少部分与所述折环部正对设置。
  2. 根据权利要求1所述的发声器件，其特征在于，所述骨架包括固定于所述音圈靠近所述振膜一端的呈环状的骨架本体和由所述骨架本体向其内侧延伸的骨架固定部，所述骨架本体的其中相对两侧与所述折环部间隔设置且沿所述振动方向向所述振膜的正投影落入所述折环部，所述骨架固定部贴合固定于所述振动部。
  3. 根据权利要求2所述的发声器件，其特征在于，所述骨架还包括由所述骨架本体的另外相对两侧向远离所述振膜方向延伸的骨架延伸部，所述骨架延伸部贴合于所述音圈的外周侧。
  4. 根据权利要求3所述的发声器件，其特征在于，所述振动系统还包括与所述振膜相对间隔设置的弹性件，所述发声器件还包括盆架，所述固定部固定于所述盆架；所述弹性件的一端固定于所述盆架，所述弹性件的另一端固定于所述骨架延伸部。
  5. 根据权利要求3所述的发声器件，其特征在于，所述骨架本体呈矩形结构，所述骨架本体的长轴相对两侧沿所述振动方向向所述振膜的正投影落入所述折环部；所述骨架延伸部由所述骨架本体的短轴相对两侧延伸形成。
  6. 根据权利要求1所述的发声器件，其特征在于，所述振膜还包括固定于所述振动部靠近所述磁路系统一侧的球顶，所述骨架固定部固定于所述球顶。
  7. 根据权利要求4所述的发声器件，其特征在于，所述发声器件还包括盖设固定于所述固定部远离所述盆架一侧的导声壳，所述导声壳与所述振膜共同围成导声腔，所述导声壳设有贯穿其上的导声孔，所述导声孔将所述导声腔与外界连通。
  8. 根据权利要求7所述的发声器件，其特征在于，所述折环部呈向远离所述磁路系统的方向凹陷形成的弧形结构。
  9. 根据权利要求7所述的发声器件，其特征在于，所述弹性件包括固定于所述盆架的第一固定臂、固定于所述骨架延伸部的第二固定臂以及将所述第二固定臂连接至所述第一固定臂的弹臂。
  10. 根据权利要求4所述的发声器件，其特征在于，所述磁路系统包括磁轭和固定于所述磁轭的主磁钢，所述磁轭包括磁轭本体和由所述磁轭本体向所述盆架方向延伸的翻边，所述主磁钢固定于所述磁轭本体，所述翻边与所述主磁钢间隔设置并与所述主磁钢形成所述磁间隙。
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CN201854416U (zh) * 2009-12-21 2011-06-01 瑞声声学科技(深圳)有限公司 扬声器
CN201839427U (zh) * 2010-06-21 2011-05-18 瑞声光电科技(常州)有限公司 扬声器
CN110351638A (zh) * 2019-06-26 2019-10-18 瑞声科技(新加坡)有限公司 一种扬声器
CN110381423A (zh) * 2019-06-26 2019-10-25 瑞声科技(新加坡)有限公司 一种发声装置
CN210781324U (zh) * 2019-10-11 2020-06-16 瑞声科技(新加坡)有限公司 扬声器

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