WO2022067987A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2022067987A1
WO2022067987A1 PCT/CN2020/128279 CN2020128279W WO2022067987A1 WO 2022067987 A1 WO2022067987 A1 WO 2022067987A1 CN 2020128279 W CN2020128279 W CN 2020128279W WO 2022067987 A1 WO2022067987 A1 WO 2022067987A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
sound
voice coil
skeleton
yoke
Prior art date
Application number
PCT/CN2020/128279
Other languages
English (en)
French (fr)
Inventor
肖波
宋威
令狐荣林
孔晨亮
章统
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(常州)有限公司
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Application filed by 瑞声声学科技(深圳)有限公司, 瑞声光电科技(常州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022067987A1 publication Critical patent/WO2022067987A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • 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
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the present invention relates to the field of acoustics and electricity, in particular to a sound-generating device.
  • a related art sound-generating device includes a basin frame, a vibration system fixed on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and sound; the vibration system includes a vibrating membrane, which is inserted in the magnetic gap to drive the A voice coil vibrating the diaphragm and a skeleton suspending the voice coil in the magnetic gap.
  • the frame may affect the vibration of the diaphragm under the large vibration of the diaphragm; that is, the frame occupies the vibration space of the diaphragm , resulting in poor sound performance of the product.
  • the purpose of the present invention is to provide a sounding device with better acoustic performance.
  • the present invention provides a sound device, which includes a vibration system and a magnetic circuit system that drives the vibration system to vibrate and sound, the magnetic circuit system has a magnetic gap, and the vibration system includes a vibrating membrane and a the magnetic gap to drive the diaphragm to vibrate the voice coil,
  • the vibrating film includes a ring-shaped vibrating portion, an outer ring bent and extended from the outer periphery of the vibrating portion, an inner ring bent and extended from the inner periphery of the vibrating portion, and an inner ring extending away from the vibrating portion. a first fixing part extending from one side of the vibrating part, the first fixing part abutting and fixing to the magnetic circuit system;
  • the vibration system further includes a skeleton for suspending the voice coil in the magnetic gap, the skeleton includes a skeleton body fixed on the side of the vibration part close to the magnetic circuit system, and a skeleton body connected to the other side by the skeleton body. a skeleton connecting arm formed by extending in the direction of the voice coil, the skeleton connecting arm extending into the magnetic gap and connecting with the voice coil;
  • the first fixing portion is provided with a groove formed by a side close to the frame and a side away from the frame.
  • the vibrating film further comprises a plurality of second fixing parts which are bent and extended from the first fixing part in a direction close to the skeleton and are spaced apart from each other, and the second fixing part is away from the side of the vibration part affixed to the magnetic circuit system;
  • the grooves include a plurality of and are spaced apart from each other, and two adjacent second fixing portions are spaced to form a gap, each of the gaps is correspondingly arranged with each of the grooves and jointly provides a vibration space for the frame connecting arm. .
  • the first fixing portion includes a plurality of mutually spaced first segments corresponding to the second fixing portion, and is bent away from the magnetic circuit system from an end of the first segment close to the groove.
  • the extended second segment and the third segment connecting two adjacent second segments, and the two adjacent second segments and the third segment together form the groove.
  • the voice coil has a rectangular structure with rounded corners
  • the skeleton connecting arms include four and are respectively disposed at four rounded corners of the voice coil, and the gap and the groove correspond to the skeleton
  • One end of the skeleton body is a second arm that is bent and extended, and the side of the voice coil close to the diaphragm is abutted against the second arm.
  • the sound-generating device further includes a basin frame for fixing the vibration system and the magnetic circuit system
  • the vibrating membrane further includes a side of the outer fold away from the vibration part that is close to the vibration part.
  • the third fixing part is bent and extended in the direction of the magnetic circuit system, and the third fixing part is attached to the outer side of the basin frame.
  • the vibrating film further includes a fourth fixing portion that is bent and extended from the side of the outer ring that is far away from the vibrating portion toward the magnetic circuit system, and the fourth fixing portion is connected to the first fixing portion.
  • the three fixing parts are arranged at intervals, and the fourth fixing part is attached to the inner side of the basin frame.
  • the magnetic circuit system includes a lower magnetic yoke fixed to the basin frame, a main magnetic steel unit fixed to the lower magnetic yoke, and a main magnetic steel unit arranged at intervals on the peripheral side of the main magnetic steel unit and connected to the main magnetic steel unit.
  • the auxiliary magnetic steel unit which together forms a magnetic gap and the upper magnetic yoke covered on the main magnetic steel unit, and the first fixing part is abutted and fixed on the upper magnetic yoke.
  • the upper magnetic yoke includes a magnetic yoke body abutting against the main magnetic steel unit, a plurality of magnetic yokes extending from the periphery of the magnetic yoke body toward the lower magnetic yoke and arranged at intervals.
  • a yoke extension part and a yoke fixing part bent and extended from one end of the yoke extension part away from the yoke body, the yoke fixing part is fixed to the secondary magnetic steel unit, and two adjacent The extension parts of the magnetic yoke are spaced to form a magnetic yoke gap, and the skeleton connecting arm extends into the magnetic gap through the magnetic yoke gap and is connected with the voice coil.
  • the vibration system further includes an auxiliary diaphragm assembly fixed to the frame body and the side of the basin frame away from the diaphragm at the same time.
  • the first fixing portion is provided with a groove corresponding to the skeleton connecting arm, and a groove is formed from the side close to the skeleton to the direction away from the skeleton; this structure is adopted.
  • the first fixing part is provided with a groove corresponding to the skeleton connecting arm, it avoids the skeleton and the skeleton.
  • the diaphragm interferes, which further enhances the vibration space of the skeleton and the diaphragm, and improves the acoustic performance of the sound-emitting device; on the other hand, the size of the groove can be flexibly adjusted according to the height of the skeleton.
  • the acoustic performance is improved; that is, with this structure, the internal structure of the sound-emitting device is reasonably arranged without increasing the height of the sound-emitting device, so that the acoustic performance of the sound-emitting device is better, More space utilization.
  • Fig. 1 is the three-dimensional structure schematic diagram of the sound-emitting device of the present invention
  • Fig. 2 is the three-dimensional structure exploded schematic diagram of the sound-emitting device of the present invention
  • Fig. 3 is the sectional view of the sounding device of the present invention.
  • FIG. 4 is a schematic structural diagram of the inner folding ring, the first fixing part and the second fixing part of the present invention.
  • the present invention provides a sound-generating device 100 , the sound-generating device 100 includes a basin frame 1 , a vibration system 2 respectively fixed to the basin frame 1 and used for vibrating and sounding, and driving the vibration system 2.
  • the sound-generating device 100 may also not include the basin frame 1 , and in this case, the vibration system 2 is fixed to the magnetic circuit system 3 .
  • the vibration system 2 includes a diaphragm 21 fixed on the basin frame 1 , a voice coil 23 inserted in the magnetic gap 30 to drive the diaphragm 21 to vibrate, a frame 22 , and an auxiliary diaphragm assembly 24 .
  • the vibrating membrane 21 includes a ring-shaped vibrating portion 211 , an outer ring 212 bent and extended from the outer periphery of the vibrating portion 211 , an inner ring 213 bent and extended from the inner periphery of the vibrating portion 211 , A first fixing portion 214 extending from the side of the inner folded ring 213 away from the vibrating portion 211 is formed, and a plurality of second fixing portions are bent and extended from the first fixing portion 214 toward the frame 22 and are spaced apart from each other. part 215 , a third fixing part 216 and a fourth fixing part 217 bent and extended from the side of the outer ring 212 away from the vibrating part 211 toward the magnetic circuit system 3 .
  • the first fixing portion 214 is provided with a groove 2140 corresponding to the frame 22 and a side of the first fixing portion 214 that is close to the frame 22 is recessed in a direction away from the frame 22 .
  • the first fixing portion 214 is provided with a groove 2140 corresponding to the frame 22 . , the interference between the frame 22 and the diaphragm 21 is avoided, the vibration space of the frame 22 and the diaphragm 21 is further improved, and the acoustic performance of the sound-emitting device 100 is improved.
  • the bobbin 22 suspends the voice coil 23 in the magnetic gap 30.
  • the bobbin 22 includes a bobbin body 221 fixed on the side of the vibration part 211 close to the magnetic circuit system 3,
  • a frame connecting arm 22 a is formed by extending the body 221 toward the voice coil 23 .
  • the frame connecting arm 22 a extends into the magnetic gap 30 and is connected to the voice coil 23 .
  • the first fixing portion 214 defines a groove 2140 corresponding to the frame connecting arm 22a.
  • the voice coil 23 has a rectangular structure with rounded corners.
  • the frame connecting arms 22a include four and are respectively disposed at the four rounded corners of the voice coil 23.
  • the gap 2150 corresponds to the groove 2140.
  • Each of the frame connecting arms 22a is set to four; each of the frame connecting arms 22a includes a first arm 222 that is bent and extended from the frame body 221 along the outer side of the voice coil 23 toward the diaphragm 21 .
  • a second arm 223 is bent and extended from one end of the first arm 222 away from the frame body 221 , and the side of the voice coil 23 close to the diaphragm 21 abuts against the second arm 223 .
  • the first arm 222 and the second arm 223 cooperate together to form an avoidance space for the voice coil 23, so that the space utilization rate is better and the volume is smaller.
  • the first fixing portion 214 is abutted and fixed on the magnetic circuit system 3 , and the side of the second fixing portion 215 away from the vibration portion 211 is attached to the magnetic circuit system 3 .
  • the third fixing portion 216 is attached to the outside of the basin frame 1
  • the fourth fixing portion 217 is spaced apart from the third fixing portion 216
  • the fourth fixing portion 217 is attached to the basin frame
  • the inner side of the 1, that is, the basin frame 1 is sandwiched between the fourth fixing portion 217 and the third fixing portion 21 to increase its reliability.
  • the grooves 2140 include four and are spaced apart from each other, and two adjacent second fixing portions 215 are spaced apart to form a gap 2150.
  • Each of the gaps 2150 and each of the grooves 2140 are correspondingly disposed and together form the skeleton.
  • the connecting arm 22a provides a vibration space. That is, the second fixing part 215 is added to be fixed to the magnetic circuit system 3, and the reliability is enhanced.
  • the gap 2150 and the groove 2140 are correspondingly arranged to provide a vibration space for the skeleton connecting arm 22a; While improving the reliability of the sound emitting device 100, the overall space of the sound emitting device 100 is not increased, the vibration space of the frame 22 and the diaphragm 21 is further increased, and the acoustic performance of the sound emitting device 100 is improved.
  • the first fixing portion 214 includes a plurality of mutually spaced first segments 2141 disposed corresponding to the second fixing portion 215 , and an end of the first segment 2141 that is close to the groove 2140 moves away from each other.
  • the second segment 2142 of the magnetic circuit system 3 is bent and extended, and the third segment 2143 is connected to two adjacent second segments 2142.
  • the two adjacent second segments 2142 and the third segment 2143 share the same
  • the groove 2140 is surrounded. That is, through the structural design of the first fixing portion 214 , the grooves 2140 are added to increase the vibration space, and at the same time, the space occupied by the diaphragm 21 is small, and the space utilization rate is high.
  • the auxiliary diaphragm assembly 24 is fixed to the frame body 221 and the side of the basin frame 1 away from the diaphragm 21 at the same time.
  • the magnetic circuit system 3 includes a lower magnetic yoke 31 fixed to the basin frame 1 , a main magnetic steel unit 32 fixed to the lower magnetic yoke 31 , and spaced around the main magnetic steel unit 32 and connected to the main magnetic steel unit 32 .
  • the magnetic steel unit 32 together forms the secondary magnetic steel unit 33 of the magnetic gap 30 and the upper magnetic steel unit 34 covered on the main magnetic steel unit 32 , and the first fixing portion 215 is abutted and fixed on the upper magnetic steel yoke 34 .
  • the voice coil 23 is suspended in the magnetic gap 30 .
  • the upper magnetic yoke 34 includes a magnetic yoke body 341 abutting against the main magnetic steel unit 32 , and is bent and extended from the periphery of the magnetic yoke body 341 toward the lower magnetic yoke 31 and spaced apart from each other.
  • a plurality of yoke extension parts 342 are provided and a yoke fixing part 343 is bent and extended from one end of the yoke extension part 342 away from the yoke body 341 , and the yoke fixing part 343 is fixed to the secondary magnet
  • two adjacent yoke extensions 42 are spaced to form a yoke gap 340, and the skeleton connecting arm 22a extends into the magnetic gap 30 through the gap 2150 and the yoke gap 340 and is connected to the The voice coil 23 is connected.
  • the first fixing portion is provided with a groove corresponding to the skeleton connecting arm, and a groove is formed from the side close to the skeleton to the direction away from the skeleton; this structure is adopted.
  • the first fixing part is provided with a groove corresponding to the skeleton connecting arm, it avoids the skeleton and the skeleton.
  • the diaphragm interferes, which further enhances the vibration space of the skeleton and the diaphragm, and improves the acoustic performance of the sound-emitting device; on the other hand, the size of the groove can be flexibly adjusted according to the height of the skeleton.
  • the acoustic performance is improved; that is, with this structure, the internal structure of the sound-emitting device is reasonably arranged without increasing the height of the sound-emitting device, so that the acoustic performance of the sound-emitting device is better, More space utilization.
  • the present invention provides one embodiment of the present invention as described above, which is not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied In other related technical fields, they are all included within the scope of patent protection of the present invention.

Abstract

本发明提供了一种发声器件，其包括振动系统和驱动振动系统振动发声的磁路系统，磁路系统具有磁间隙，振动系统包括振膜和插设于磁间隙以驱动振膜振动发声的音圈，振膜包括呈环状的振动部、由振动部外周缘弯折延伸的外折环、由振动部内周缘弯折延伸的内折环以及由内折环延伸形成的第一固定部，第一固定部抵接固定于磁路系统；振动系统还包括将音圈悬置于磁间隙的骨架，骨架包括骨架本体以及由骨架本体向音圈方向延伸形成的骨架连接臂，骨架连接臂延伸至磁间隙内并与音圈连接；第一固定部与内折环的连接处对应骨架连接臂设有由其靠近骨架的一侧向远离骨架方向凹陷形成凹槽。与相关技术相比，本发明的发声器件声学性能更好。

Description

发声器件 技术领域
本发明涉及声电领域，尤其涉及一种发声器件。
 背景技术
随着互联网时代的到来，移动终端设备的数量不断上升。而在移动设备中，手机无疑是最常见且最便携的移动终端设备。用于播放音乐等声音的发声器件被大量的运用到手机等移动终端设备中，而发声器件中的振动系统尤为重要，整个发声器件通过所述振动系统振动发声。
相关技术发声器件包括盆架、固定于所述盆架上的振动系统以及驱动所述振动系统振动发声的磁路系统；所述振动系统包括振膜、插设于所述磁间隙以驱动所述振膜振动的音圈以及将所述音圈悬置于所述磁间隙的骨架。
然而，随着所述振膜的振幅要求的提高，在所述振膜大幅度振动下，所述骨架可能会影响所述振膜的振动；即所述骨架占据了所述振膜的振动空间，导致产品的发声性能不好。
因此，有必要提供一种新的发声器件解决上述问题。
 技术问题
本发明的目的在于提供一种声学性能更好的发声器件。
 技术解决方案
为达到上述目的，本发明提供一种发声器件，其包括振动系统和驱动所述振动系统振动发声的磁路系统，所述磁路系统具有磁间隙，所述振动系统包括振膜和插设于所述磁间隙以驱动所述振膜振动发声的音圈，
所述振膜包括呈环状的振动部、由所述振动部外周缘弯折延伸的外折环、由所述振动部内周缘弯折延伸的内折环以及由所述内折环远离所述振动部的一侧延伸形成的第一固定部，所述第一固定部抵接固定于所述磁路系统；
所述振动系统还包括将所述音圈悬置于所述磁间隙的骨架，所述骨架包括固定于所述振动部靠近所述磁路系统一侧的骨架本体以及由所述骨架本体向所述音圈方向延伸形成的骨架连接臂，所述骨架连接臂延伸至所述磁间隙内并与所述音圈连接；
所述第一固定部对应所述骨架连接臂设有由其靠近所述骨架的一侧向远离所述骨架方向凹陷形成凹槽。
优选的，所述振膜还包括由所述第一固定部向靠近所述骨架方向弯折延伸且相互间隔的多个第二固定部，所述第二固定部远离所述振动部的一侧贴设于所述磁路系统；
所述凹槽包括多个且相互间隔，相邻两个所述第二固定部间隔形成间隙，每一所述间隙与每一所述凹槽对应设置且共同为所述骨架连接臂提供振动空间。
优选的，所述第一固定部包括对应所述第二固定部设置的多个相互间隔的第一段、由所述第一段靠近所述凹槽的一端向远离所述磁路系统弯折延伸的第二段以及连接相邻两个所述第二段的第三段，相邻两个所述第二段以及所述第三段共同围成所述凹槽。
优选的，所述音圈呈带圆角的矩形结构，所述骨架连接臂包括四个且分别设置于所述音圈的四个圆角处，所述间隙与所述凹槽对应所述骨架连接臂均设置为四个；每一所述骨架连接臂包括由所述骨架本体沿所述音圈的外侧向靠近所述振膜方向弯折延伸的第一臂以及由所述第一臂远离所述骨架本体的一端弯折延伸的第二臂，所述音圈靠近所述振膜的一侧抵接于所述第二臂。
优选的，所述发声器件还包括用于固定所述振动系统和所述磁路系统的盆架，所述振膜还包括由所述外折环远离所述振动部的一侧向靠近所述磁路系统方向弯折延伸的第三固定部，所述第三固定部贴设于所述盆架的外侧。
优选的，所述振膜还包括由所述外折环远离所述振动部的一侧向靠近所述磁路系统方向弯折延伸的第四固定部，所述第四固定部与所述第三固定部间隔设置且所述第四固定部贴设于所述盆架的内侧。
优选的，所述磁路系统包括固定于盆架的下磁轭、固定于所述下磁轭的主磁钢单元、间隔设置于所述主磁钢单元周侧并与所述主磁钢单元共同围成磁间隙的副磁钢单元以及盖设于所述主磁钢单元的上磁轭，所述第一固定部抵接固定于所述上磁轭。
优选的，所述上磁轭包括抵接于所述主磁钢单元的磁轭本体、由所述磁轭本体的周缘向靠近所述下磁轭方向弯折延伸且相互间隔设置的多个磁轭延伸部以及由所述磁轭延伸部远离所述磁轭本体的一端弯折延伸的磁轭固定部，所述磁轭固定部固定于所述副磁钢单元，相邻两个所述的磁轭延伸部间隔形成磁轭间隙，所述骨架连接臂经所述磁轭间隙延伸至所述磁间隙内并与所述音圈连接。
优选的，所述振动系统还包括同时固定于所述骨架本体和所述盆架的远离所述振膜一侧的辅助振膜组件。
 有益效果
与相关技术相比，本发明的发声器件，所述第一固定部对应所述骨架连接臂设有由其靠近所述骨架的一侧向远离所述骨架方向凹陷形成凹槽；采用此种结构，在保证所述发声器件的高度尺寸不增加的情况下，当所述振膜大幅度振动时，由于所述第一固定部对应所述骨架连接臂设有凹槽，避免了所述骨架和所述振膜产生干涉，进一步提升所述骨架和所述振膜振动空间，提升发声器件的声学性能；另一方面，所述凹槽的大小可以配合所述骨架的高度灵活调整，在保证所述骨架强度的情况下，改善声学性能；即采用此种结构，在保证不增加所述发声器件的高度情况下，合理布局所述发声器件内部结构，使得所述发声器件的声学性能更好，空间利用率更大。
 附图说明
为了更清楚地说明本发明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发明的一些实施例，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为本发明发声器件的立体结构示意图
图2为本发明发声器件的立体结构分解示意图；
图3为本发明发声器件的剖视图；
图4为本发明内折环、第一固定部以及第二固定部的结构示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明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发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
请参考图1-4所示，本发明提供一种发声器件100，该发声器件100包括盆架1、分别固定于所述盆架1且用于振动发声的振动系统2和驱动所述振动系统2振动发声的磁路系统3，所述磁路系统3具有磁间隙30。
当然所述发声器件100也可以不包括盆架1，此时振动系统2固定于所述磁路系统3。
具体的，所述振动系统2包括固定于所述盆架1的振膜21、插设于所述磁间隙30以驱动所述振膜21振动的音圈23、骨架22、辅助振膜组件24。所述振膜21包括呈环状的振动部211、由所述振动部211外周缘弯折延伸的外折环212、由所述振动部211内周缘弯折延伸的内折环213、由所述内折环213远离所述振动部211的一侧延伸形成的第一固定部214、由所述第一固定部214向靠近所述骨架22方向弯折延伸且相互间隔的多个第二固定部215、由所述外折环212远离所述振动部211的一侧向靠近所述磁路系统3方向弯折延伸的第三固定部216和第四固定部217。所述第一固定部214对应所述骨架22设有由其靠近所述骨架22的一侧向远离所述骨架22方向凹陷形成凹槽2140。采用此种结构，在保证所述发声器件100的高度尺寸不增加的情况下，当所述振膜21大幅度振动时，由于所述第一固定部214对应所述骨架22设有凹槽2140，避免了所述骨架22和所述振膜21产生干涉，进一步提升所述骨架22和所述振膜21振动空间，提升发声器件100的声学性能。
骨架22将所述音圈23悬置于所述磁间隙30，具体的，所述骨架22包括固定于所述振动部211靠近所述磁路系统3一侧的骨架本体221以及由所述骨架本体221向所述音圈23方向延伸形成的骨架连接臂22a，所述骨架连接臂22a延伸至所述磁间隙30内并与所述音圈23连接。所述第一固定部214对应所述骨架连接臂22a设有凹槽2140。
所述音圈23呈带圆角的矩形结构，所述骨架连接臂22a包括四个且分别设置于所述音圈23的四个圆角处，所述间隙2150与所述凹槽2140对应所述骨架连接臂22a均设置为四个；每一所述骨架连接臂22a包括由所述骨架本体221沿所述音圈23的外侧向靠近所述振膜21方向弯折延伸的第一臂222以及由所述第一臂222远离所述骨架本体221的一端弯折延伸的第二臂223，所述音圈23靠近所述振膜21的一侧抵接于所述第二臂223。第一臂222和第二臂223共同配合以对音圈23形成避让空间，使得空间利用率更好，体积更小。
具体的，所述第一固定部214抵接固定于所述磁路系统3，所述第二固定部215远离所述振动部211的一侧贴设于所述磁路系统3。所述第三固定部216贴设于所述盆架1的外侧，所述第四固定部217与所述第三固定部216间隔设置且所述第四固定部217贴设于所述盆架1的内侧，即盆架1夹设于所述第四固定部217与所述第三固定部21之间，增加其可靠性。所述凹槽2140包括四个且相互间隔，相邻两个所述第二固定部215间隔形成间隙2150，每一所述间隙2150与每一所述凹槽2140对应设置且共同为所述骨架连接臂22a提供振动空间。即增设第二固定部215与所述磁路系统3固定，可靠性增强，同时所述间隙2150和所述凹槽2140对应设置且共同为所述骨架连接臂22a提供振动空间；即提升发声器件100的可靠性的同时，不增加整体发声器件100的整体空间，进一步增加所述骨架22和所述振膜21的振动空间，提升发声器件100的声学性能。
本实施例中，所述第一固定部214包括对应所述第二固定部215设置的多个相互间隔的第一段2141、由所述第一段2141靠近所述凹槽2140的一端向远离所述磁路系统3弯折延伸的第二段2142以及连接相邻两个所述第二段2142的第三段2143，相邻两个所述第二段2142以及所述第三段2143共同围成所述凹槽2140。即通过对第一固定部214的结构设计，增设凹槽2140以增加振动空间同时占据所述振膜21的空间较小，空间利用率较高。
辅助振膜组件24同时固定于所述骨架本体221和所述盆架1的远离所述振膜21的一侧。
所述磁路系统3包括固定于盆架1的下磁轭31、固定于所述下磁轭31的主磁钢单元32、间隔设置于所述主磁钢单元32周侧并与所述主磁钢单元32共同围成磁间隙30的副磁钢单元33以及盖设于所述主磁钢单元32的上磁轭34，所述第一固定部215抵接固定于所述上磁轭34，所述音圈23悬置于所述磁间隙30内。
具体的，所述上磁轭34包括抵接于所述主磁钢单元32的磁轭本体341、由所述磁轭本体341的周缘向靠近所述下磁轭31方向弯折延伸且相互间隔设置的多个磁轭延伸部342以及由所述磁轭延伸部342远离所述磁轭本体341的一端弯折延伸的磁轭固定部343，所述磁轭固定部343固定于所述副磁钢单元33，相邻两个所述的磁轭延伸部42间隔形成磁轭间隙340，所述骨架连接臂22a经间隙2150及所述磁轭间隙340延伸至所述磁间隙30内并与所述音圈23连接。
与相关技术相比，本发明的发声器件，所述第一固定部对应所述骨架连接臂设有由其靠近所述骨架的一侧向远离所述骨架方向凹陷形成凹槽；采用此种结构，在保证所述发声器件的高度尺寸不增加的情况下，当所述振膜大幅度振动时，由于所述第一固定部对应所述骨架连接臂设有凹槽，避免了所述骨架和所述振膜产生干涉，进一步提升所述骨架和所述振膜振动空间，提升发声器件的声学性能；另一方面，所述凹槽的大小可以配合所述骨架的高度灵活调整，在保证所述骨架强度的情况下，改善声学性能；即采用此种结构，在保证不增加所述发声器件的高度情况下，合理布局所述发声器件内部结构，使得所述发声器件的声学性能更好，空间利用率更大。
本发明提供一种以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明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，均同理包括在本发明的专利保护范围内。

Claims (9)

  1. 一种发声器件，其包括振动系统和驱动所述振动系统振动发声的磁路系统，所述磁路系统具有磁间隙，所述振动系统包括振膜和插设于所述磁间隙以驱动所述振膜振动发声的音圈，其特征在于，
    所述振膜包括呈环状的振动部、由所述振动部外周缘弯折延伸的外折环、由所述振动部内周缘弯折延伸的内折环以及由所述内折环远离所述振动部的一侧延伸形成的第一固定部，所述第一固定部抵接固定于所述磁路系统；
    所述振动系统还包括将所述音圈悬置于所述磁间隙的骨架，所述骨架包括固定于所述振动部靠近所述磁路系统一侧的骨架本体以及由所述骨架本体向所述音圈方向延伸形成的骨架连接臂，所述骨架连接臂延伸至所述磁间隙内并与所述音圈连接；
    所述第一固定部对应所述骨架连接臂设有由其靠近所述骨架的一侧向远离所述骨架方向凹陷形成凹槽。
  2. 根据权利要求1中所述的发声器件，其特征在于，所述振膜还包括由所述第一固定部向靠近所述骨架方向弯折延伸且相互间隔的多个第二固定部，所述第二固定部远离所述振动部的一侧贴设于所述磁路系统；
    所述凹槽包括多个且相互间隔，相邻两个所述第二固定部间隔形成间隙，每一所述间隙与每一所述凹槽对应设置且共同为所述骨架连接臂提供振动空间。
  3. 根据权利要求2中所述的发声器件，其特征在于，所述第一固定部包括对应所述第二固定部设置的多个相互间隔的第一段、由所述第一段靠近所述凹槽的一端向远离所述磁路系统弯折延伸的第二段以及连接相邻两个所述第二段的第三段，相邻两个所述第二段以及所述第三段共同围成所述凹槽。
  4. 根据权利要求2中所述的发声器件，其特征在于，所述音圈呈带圆角的矩形结构，所述骨架连接臂包括四个且分别设置于所述音圈的四个圆角处，所述间隙与所述凹槽对应所述骨架连接臂均设置为四个；每一所述骨架连接臂包括由所述骨架本体沿所述音圈的外侧向靠近所述振膜方向弯折延伸的第一臂以及由所述第一臂远离所述骨架本体的一端弯折延伸的第二臂，所述音圈靠近所述振膜的一侧抵接于所述第二臂。
  5. 根据权利要求1中所述的发声器件，其特征在于，所述发声器件还包括用于固定所述振动系统和所述磁路系统的盆架，所述振膜还包括由所述外折环远离所述振动部的一侧向靠近所述磁路系统方向弯折延伸的第三固定部，所述第三固定部贴设于所述盆架的外侧。
  6. 根据权利要求5中所述的发声器件，其特征在于，所述振膜还包括由所述外折环远离所述振动部的一侧向靠近所述磁路系统方向弯折延伸的第四固定部，所述第四固定部与所述第三固定部间隔设置且所述第四固定部贴设于所述盆架的内侧。
  7. 根据权利要求1中所述的发声器件，其特征在于，所述磁路系统包括固定于盆架的下磁轭、固定于所述下磁轭的主磁钢单元、间隔设置于所述主磁钢单元周侧并与所述主磁钢单元共同围成磁间隙的副磁钢单元以及盖设于所述主磁钢单元的上磁轭，所述第一固定部抵接固定于所述上磁轭。
  8. 根据权利要求7中所述的发声器件，其特征在于，所述上磁轭包括抵接于所述主磁钢单元的磁轭本体、由所述磁轭本体的周缘向靠近所述下磁轭方向弯折延伸且相互间隔设置的多个磁轭延伸部以及由所述磁轭延伸部远离所述磁轭本体的一端弯折延伸的磁轭固定部，所述磁轭固定部固定于所述副磁钢单元，相邻两个所述的磁轭延伸部间隔形成磁轭间隙，所述骨架连接臂经所述磁轭间隙延伸至所述磁间隙内并与所述音圈连接。
  9. 根据权利要求5中所述的发声器件，其特征在于，所述振动系统还包括同时固定于所述骨架本体和所述盆架的远离所述振膜一侧的辅助振膜组件。
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