WO2022110460A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2022110460A1
WO2022110460A1 PCT/CN2020/140074 CN2020140074W WO2022110460A1 WO 2022110460 A1 WO2022110460 A1 WO 2022110460A1 CN 2020140074 W CN2020140074 W CN 2020140074W WO 2022110460 A1 WO2022110460 A1 WO 2022110460A1
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WO
WIPO (PCT)
Prior art keywords
fixed
front cover
sound
diaphragm
extension
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Application number
PCT/CN2020/140074
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English (en)
French (fr)
Inventor
金鑫
张帆
钟志威
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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Publication date
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 WO2022110460A1 publication Critical patent/WO2022110460A1/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 invention relates to the field of electro-acoustic conversion, in particular to a sound-generating device.
  • the sound-generating device includes a basin frame, a vibration system accommodated in the basin frame, a magnetic circuit system fixed on the basin frame and having a magnetic gap, and a front cover.
  • the vibration system includes a vibrating membrane fixed on the basin frame and a magnetic gap inserted.
  • both the pot holder and the front cover are made of plastic, and they are fixed by plastic hot spots, which can easily cause the front cover to fall off.
  • the purpose of the present invention is to provide a sounding device, the front cover of which is not easy to fall off.
  • the sound-generating device includes a basin frame, a vibration system accommodated in the basin frame, a magnetic circuit system fixed on the basin frame and having a magnetic gap, and a front cover, and the vibration system includes a diaphragm and an inserting
  • the magnetic gap is used to drive the diaphragm to vibrate and produce a voice coil
  • the diaphragm is fixed on the front cover
  • the basin frame includes a receiving part connected with the front cover and a fixing place extending from the receiving part.
  • the orthographic projection of the diaphragm on the front cover does not overlap with the orthographic projection of the receiving part on the front cover, wherein the
  • the basin frame and the front cover are both made of metal materials, and the front cover has a welding part, and the welding part and the receiving part are fixed by laser spot welding.
  • a plurality of the welding portions are provided, and the plurality of the welding portions are arranged at intervals.
  • a plurality of the welding parts are respectively located at the chamfers of the front cover.
  • the diaphragm has an edge portion fixed to the front cover, the edge portion includes a plurality of first edge portions arranged at intervals and a second edge arranged between two adjacent first edge portions part, the distance from the second edge part to the receiving part is greater than the distance from the first edge part to the receiving part.
  • the sound-generating device further includes an elastic support member spaced from the vibrating membrane, a skeleton is fixed on the side of the vibrating membrane facing the magnetic circuit system, and the skeleton includes a a main body part and a first extension part and a second extension part respectively extending from the main body part in a direction away from the vibrating membrane, the first extension part and the second extension part are spaced apart, wherein the elastic One end of the support member is fixed to the peripheral portion, and the other end of the support member is fixed to the first extension portion; the voice coil is fixed to the second extension portion.
  • the second extension portion is provided with a plurality of notches, and the plurality of notches divide the second extension portion into a plurality of isolation islands.
  • the elastic support member includes a flexible circuit board and an auxiliary diaphragm
  • the flexible circuit board includes a holding portion fixed to the peripheral portion, a fixed portion fixed to the first extension portion, and a holding portion connected to the holding portion.
  • the elastic arm of the fixing part, the auxiliary diaphragm includes a first part fixed on the side of the holding part away from the peripheral part, and a first part fixed on the side of the fixing part away from the first extension part. Two parts and a folded ring connecting the first part and the second part, the folded ring protrudes in a direction away from the flexible circuit board.
  • the magnetic circuit system includes a magnetic bowl fixed on the outer portion and a magnet portion accommodated in the magnetic bowl, the magnetic bowl includes a bottom wall and a direction from the periphery of the bottom wall to the diaphragm
  • the side wall formed by bending and extending, the magnet part is fixed on the bottom wall and is spaced from the side wall to form the magnetic gap.
  • the side walls comprise two first side walls respectively located on opposite sides of the bottom wall and two second side walls respectively located on the other opposite sides of the bottom wall, the first side walls are far away from One side of the voice coil is provided with the elastic support member, and the second side wall is bent and extended in a direction away from the voice coil to form an extension portion, and the extension portion is fixed to the outer peripheral portion.
  • the basin frame and the front cover of the sounding device provided by the present invention are both made of metal materials, and along the vibration direction of the diaphragm, the orthographic projection of the diaphragm on the front cover is the same as the The orthographic projection of the receiving part of the basin frame on the front cover does not overlap, and the diaphragm is only fixed on the front cover, so that the welding part of the front cover and the receiving part of the basin frame are fixed by laser spot welding, and the combination The strength is better than the hot spot of plastic parts, so that the front cover is not easy to fall off.
  • FIG. 1 is an exploded view of the sound-emitting device provided by the present invention.
  • FIG. 2 is a schematic structural diagram of the combination of the membrane body and the basin frame in the sound-emitting device shown in FIG. 1 .
  • FIG. 3 is a schematic structural diagram of a skeleton in the sound-emitting device shown in FIG. 1 .
  • FIG. 4 is a schematic structural diagram of a magnetic bowl in the sound-emitting device shown in FIG. 1 .
  • FIG. 5 is a perspective view of the sounding device shown in FIG. 1 after being assembled.
  • FIG. 6 is a cross-sectional view of the sound-emitting device shown in FIG. 5 along the line A-A.
  • FIG. 7 is a cross-sectional view of the sound-emitting device shown in FIG. 5 taken along line B-B.
  • FIG. 8 is a cross-sectional view of the sound-emitting device shown in FIG. 5 along line C-C.
  • the sound-generating device includes a basin frame 1 , a vibration system 3 accommodated in the basin frame 1 , a magnetic circuit system 5 fixed on the basin frame 1 and having a magnetic gap 5A, and a magnetic circuit system 5 fixed on the basin frame 1 .
  • the front cover 6 of the basin frame 1 and the magnetic circuit system 5 are used to drive the vibration system 3 to vibrate and emit sound.
  • the basin frame 1 includes a receiving portion 11 connected with the front cover 6 and a peripheral portion 12 extending from the receiving portion 11 for fixing the magnetic circuit system 5 .
  • Both the basin frame 1 and the front cover 6 are made of metal materials.
  • the front cover 6 has a welding part 61 , and the welding part 61 and the receiving part 11 are fixed by laser spot welding.
  • a plurality of the welding portions 61 are provided, and the plurality of the welding portions 61 are arranged at intervals. As shown in FIG. 5 , there are four welding portions 61 , which are respectively located at the chamfers of the front cover 6 . It can be understood that, in the embodiment, the number and position of the welding parts 61 are not limited to this, and it is only necessary to ensure that the welding parts 61 can be welded and fixed with the receiving part 11 of the basin frame 1 . , and after being welded and fixed, the two have sufficient connection strength.
  • the welded portion 61 may also be located on the long axis side or/and the short axis side of the front cover 6 .
  • the vibration system 3 includes a diaphragm 31 and a voice coil 33 inserted into the magnetic gap 5A to drive the diaphragm 31 to vibrate and produce sound.
  • the voice coil 33 is electrically connected to an external circuit. After the voice coil 33 is energized, the voice coil 33 vibrates under the action of the magnetic field of the magnetic circuit system 5. At the same time, the voice coil 33 drives the The diaphragm 31 vibrates to produce sound.
  • the diaphragm 31 is fixed on the front cover 6 and is enclosed with the front cover 6 to form an acoustic cavity 10 .
  • the front cover 6 is provided with a sound outlet 6A that communicates with the acoustic cavity 10 .
  • the sound produced by the vibration of the diaphragm 31 is transmitted through the sound cavity 10 and the sound outlet hole 6A.
  • the diaphragm 31 plays a role of giving way. Specifically, the diaphragm 31 has an edge portion 31A fixed to the front cover 6 , and the edge portion 31A is separated from the welding portion 61 and the receiving portion 11 by a certain distance.
  • the edge portion 31A includes a plurality of first edge portions 31C disposed at intervals and a second edge portion 31D disposed between two adjacent first edge portions 31C, and the second edge portion 31D is connected to the receiving portion
  • the distance of 11 is d1
  • the distance from the first edge portion 31C to the receiving portion 11 is d2, and d1>d2.
  • the welding part 61 of the front cover 6 is fixed by laser spot welding.
  • the sound-generating device further includes an elastic support member 7 spaced from the vibrating membrane 31 , and a frame 34 is fixed on the side of the vibrating membrane 31 facing the magnetic circuit system 5 .
  • One end of the support member 7 is fixed to the outer portion 12 , the other end is fixed to the frame 34 , and the voice coil 33 is fixed to the frame 34 .
  • the skeleton 34 drives the diaphragm 31 and the elastic support 7 to vibrate together.
  • the frame 34 includes a main body portion 341 fixed to the diaphragm 31 , a first extension portion 343 and a second extension portion 345 respectively extending from the main body portion 341 to the direction away from the diaphragm 31 .
  • An extension portion 343 is spaced apart from the second extension portion 345 .
  • the end of the elastic support member 7 away from the basin frame 1 is fixed to the first extension portion 343 ; the voice coil 33 is fixed to the second extension portion 345 .
  • the main body portion 341 has an annular structure
  • the first extension portion 343 extends from the outer periphery of the main body portion 341
  • the second extension portion 345 extends from the inner portion of the main body portion 341 .
  • the perimeter is extended.
  • the annular structure of the main body portion 341 is beneficial to reduce the overall weight of the skeleton 34 to reduce the vibration quality of the sound-generating device, thereby improving the sensitivity of the sound-generating device.
  • the second extension portion 345 is provided with a plurality of notches 347 , and the plurality of notches 347 divide the second extension portion 345 into a plurality of isolation islands 345A. That is, the voice coil 33 is fixed to the plurality of isolation islands 345A of the second extension portion 345 . After the voice coil 33 is fixed to the second extension part 345 by setting a plurality of notches 347, an air flow channel is formed between the voice coil 33 and the second extension part 345, and the air flow channel can vibrate the sound-generating device. When balancing the air pressure in the sound-emitting device, it is beneficial to improve the acoustic performance of the sound-emitting device.
  • the vibrating membrane 31 includes a membrane body 35 fixed on the front cover 6 and having a cut hole 351 , and a dome 37 fixed on the inner periphery of the membrane body and covering the cut hole 351 .
  • the outer periphery of the film body 35 is fixed to the front cover 6 , that is, the edge portion 31A is at least a part of the outer periphery of the film body 35 .
  • the elastic support 7 includes a flexible circuit board 71 and an auxiliary diaphragm 73 .
  • the flexible circuit board 71 includes a holding portion 711 fixed to the basin frame 1 , a fixing portion 713 fixed to the first extension portion 343 , and an elastic arm 715 connecting the holding portion 711 and the fixing portion 713 .
  • one of the flexible circuit boards 71 further includes a pad portion 717 that is bent and extended from the fixing portion 713 toward the vibrating membrane, and the pad portion 717 is provided with a connection with the sound
  • the leads of the coil 33 are electrically connected.
  • the flexible circuit board 71 plays the role of supporting and fixing the vibration system 3; (not shown), the elastic arm 715 and the fixing portion 713 are provided with conductive paths to electrically connect the holding portion 711 and the pads on the pad portion 717 , wherein the pad portion 717
  • the connection between the pad of the voice coil 33 and the lead wire of the voice coil 33 serves to electrically connect the voice coil 33, and the pad on the holding portion 711 is connected to an external circuit, so that the voice coil 33 passes through the flexible circuit
  • the board 71 is electrically connected to an external circuit, and when the sound-emitting device works, the electrical signal of the external circuit is transmitted to the voice coil 33 through the flexible circuit board 71 .
  • the flexible circuit board 71 may also not include a pad portion, and correspondingly, pads electrically connected to the leads of the voice coil 33 are provided on the fixing portion.
  • the auxiliary diaphragm 73 includes a first portion 731 fixed on the side of the holding portion 711 away from the basin frame 1 , and a second portion 733 fixed on the side of the fixing portion 713 away from the first extension portion 343 . and a folded ring 735 connecting the first part 731 and the second part 733 , the folded ring 735 protrudes in a direction away from the flexible circuit board 71 .
  • the arrangement of the auxiliary diaphragm 73 can improve the acoustic performance of the sound-emitting device.
  • the magnetic circuit system 5 includes a magnetic bowl 51 fixed on the outer portion 12 and a magnet portion 53 accommodated in the magnetic bowl 51 .
  • the magnetic bowl 51 includes a bottom wall 511 and a side wall 513 formed by bending and extending from the periphery of the bottom wall 511 toward the diaphragm 31 .
  • the magnet portion 53 is fixed on the bottom wall 511 and is connected with the The sidewalls 513 are spaced to form the magnetic gap 5A.
  • the side walls 513 include two first side walls 515 located on opposite sides of the bottom wall 511, respectively, and two second side walls 517 located on other opposite sides of the bottom wall 511, respectively.
  • a side of the wall 515 away from the voice coil 33 is provided with the elastic support member 7 , and the second side wall 517 is bent and extended in a direction away from the voice coil 33 to form an extension portion 519 , and the extension portion 519 fixed to the outer portion 12 .
  • the magnet portion 53 includes a permanent magnet 531 fixed on the bottom wall 511 and a pole core 533 fixed on a side of the permanent magnet 531 away from the bottom wall 511 .
  • the permanent magnet may be a natural magnet or an artificial magnet (eg, magnetic steel); the pole core 533 is made of a magnetically conductive material, so that the magnetic flux in the magnetic gap 5A can be enhanced.
  • the magnet portion 53 may only be a permanent magnet, or may be formed by stacking multiple permanent magnets and multiple pole cores.
  • the welding part 61 is fixed to the basin frame 1 by welding, so that the risk of the front cover or/and the detachment can be reduced.

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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

本发明提供了一种发声器件，其包括盆架、收容于所述盆架的振动系统、固定于所述盆架并具有磁间隙的磁路系统以及前盖，所述振动系统包括振膜以及插入所述磁间隙以驱动所述振膜振动发声的音圈，所述振膜固定于所述前盖，所述盆架包括与所述前盖相连的承接部和自所述承接部延伸的固定所述磁路系统的外围部，沿所述振膜的振动方向，所述振膜在所述前盖上的正投影与所述承接部在所述前盖上的正投影不重叠，其中，所述盆架和所述前盖均由金属材料制成，所述前盖具有焊接部，所述焊接部与所述承接部通过激光点焊固定。本发明提供的发声器件的前盖不易脱落。

Description

发声器件 技术领域
本发明涉及电声转换领域，尤其涉及一种发声器件。
 背景技术
为适应各种音响设备与信息通信设备的小型化、多功能化发展，要求该类设备中所使用的发声器件对应更加趋于小型化，使所述发声器件与周边其他元件的配合更加紧凑。特别随着移动电话轻薄化发展的需求，对其中所使用的发声器件的质量要求也越来越高。
相关技术中，发声器件包括盆架、收容于盆架的振动系统、固定于盆架并具有磁间隙的磁路系统以及前盖，振动系统包括固设于盆架上的振膜以及插入磁间隙内以驱动振膜振动发声的音圈。然而，盆架和前盖都是塑料，二者通过塑料烫点固定，这种固定方式易导致前盖脱落。
因此，实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发声器件，该发声器件的前盖不易脱落。
 技术解决方案
本发明提供的发声器件，其包括盆架、收容于所述盆架的振动系统、固定于所述盆架并具有磁间隙的磁路系统以及前盖，所述振动系统包括振膜以及插入所述磁间隙以驱动所述振膜振动发声的音圈，所述振膜固定于所述前盖，所述盆架包括与所述前盖相连的承接部和自所述承接部延伸的固定所述磁路系统的外围部，沿所述振膜的振动方向，所述振膜在所述前盖上的正投影与所述承接部在所述前盖上的正投影不重叠，其中，所述盆架和所述前盖均由金属材料制成，所述前盖具有焊接部，所述焊接部与所述承接部通过激光点焊固定。
优选地，所述焊接部设有多个，且多个所述焊接部间隔设置。
优选地，多个所述焊接部分别位于所述前盖的倒角处。
优选地，所述振膜具有固定于所述前盖的边缘部，所述边缘部包括多个间隔设置的第一边缘部及设于相邻两所述第一边缘部之间的第二边缘部，所述第二边缘部到所述承接部的距离大于第一边缘部到所述承接部的距离。
优选地，所述发声器件还包括与所述振膜间隔设置的弹性支撑件，所述振膜朝向所述磁路系统的一侧固设有骨架，所述骨架包括固定于所述振膜的主体部以及分别自所述主体部向背离所述振膜方向延伸形成的第一延伸部和第二延伸部，所述第一延伸部和所述第二延伸部间隔设置，其中，所述弹性支撑件的一端固定于所述外围部，其另一端固定于所述第一延伸部；所述音圈固定于所述第二延伸部。
优选地，所述第二延伸部上设有多个豁口，多个所述豁口将所述第二延伸部分隔为多个隔离岛。
优选地，所述弹性支撑件包括柔性电路板和辅助振膜，所述柔性电路板包括固定于所述外围部的固持部、固定于所述第一延伸部的固定部及连接所述固持部和所述固定部的弹性臂，所述辅助振膜包括固设于所述固持部远离所述外围部一侧的第一部分、固定于所述固定部远离所述第一延伸部一侧的第二部分及连接所述第一部分和所述第二部分的折环，所述折环向背离所述柔性电路板的方向凸起。
优选地，所述磁路系统包括固持于所述外围部的磁碗以及收容于所述磁碗内的磁体部，所述磁碗包括底壁及自所述底壁周缘向所述振膜方向弯折延伸形成的侧壁，所述磁体部固设于所述底壁并与所述侧壁间隔形成所述磁间隙。
优选地，所述侧壁包括两个分别位于所述底壁相对两侧的第一侧壁及两个分别位于所述底壁另外相对两侧的第二侧壁，所述第一侧壁远离所述音圈的一侧设有所述弹性支撑件，所述第二侧壁向远离所述音圈的方向弯折延伸形成有延展部，所述延展部固定于所述外围部。
 有益效果
与相关技术相比，本发明提供的发声器件的盆架和前盖均由金属材料制成，沿所述振膜的振动方向，所述振膜在所述前盖上的正投影与所述盆架的承接部在所述前盖上的正投影不重叠，所述振膜仅固定于所述前盖，以便于前盖的焊接部与盆架的承接部通过激光点焊固定，其结合强度优于塑料件烫点，从而可以使得前盖不易脱落。
 附图说明
图1为本发明提供的发声器件的分解图。
图2为图1所示发声器件中膜本体与盆架组合后的结构示意图。
图3为图1所示发声器件中骨架的结构示意图。
图4为图1所示发声器件中磁碗的结构示意图。
图5为图1所示发声器件组装后的立体图。
图6为图5所示发声器件沿A-A线的剖视图。
图7为图5所示发声器件沿B-B线的剖视图。
图8为图5所示发声器件沿C-C线的剖视图。
 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，所描述的实施例仅仅是本发明一部份实施例，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他实施例，都属于本发明保护的范围。
如图1至图8所示，所述发声器件包括盆架1、收容于所述盆架1的振动系统3、固定于所述盆架1并具有磁间隙5A的磁路系统5以及固定于所述盆架1的前盖6，所述磁路系统5用于驱动所述振动系统3振动发声。
所述盆架1包括与所述前盖6相连的承接部11和自所述承接部11延伸的固定所述磁路系统5的外围部12。
所述盆架1和所述前盖6均由金属材料制成。所述前盖6具有焊接部61，所述焊接部61与所述承接部11通过激光点焊固定。
在本实施例中，所述焊接部61设有多个，且多个所述焊接部61间隔设置。如图5所示，所述焊接部61设有四个，且分别位于所述前盖6的倒角处。可以理解的是，在其实施例方式中，所述焊接部61的数量和位置并不局限于此，仅需要保证所述焊接部61能与所述盆架1的所述承接部11焊接固定，且焊接固定后，二者之间具有足够的连接强度，例如，所述焊接部61也可以位于所述前盖6的长轴边或/和短轴边上。
所述振动系统3包括振膜31以及插入所述磁间隙5A以驱动所述振膜31振动发声的音圈33。其中，所述音圈33与外部电路电连接，所述音圈33通电后，所述音圈33在所述磁路系统5磁场的作用下振动，与此同时，所述音圈33带动所述振膜31振动发声。
所述振膜31固定于所述前盖6并与所述前盖6围合形成声腔10，所述前盖6上开设有与所述声腔10连通的出声孔6A。其中，所述振膜31振动发出的声音经所述声腔10和所述出声孔6A传出。
沿所述振膜31的振动方向，所述振膜31在所述前盖6上的正投影与所述承接部11在所述前盖6上的正投影不重叠，以便于所述焊接部61与所述盆架1的所述承接部11通过激光点焊固定时，所述振膜31起到让位作用。具体地，所述振膜31具有固定于所述前盖6的边缘部31A，所述边缘部31A与所述焊接部61和所述承接部11均相隔一定的距离。
所述边缘部31A包括多个间隔设置的第一边缘部31C及设于相邻两所述第一边缘部31C之间的第二边缘部31D，所述第二边缘部31D到所述承接部11的距离为d1，所述第一边缘部31C到所述承接部11的距离为d2，d1＞d2。如图2所示，所述第一边缘部31C和所述第二边缘部31D均设有四个，所述第二边缘部31D位于转角处，更有利于转角处的所述承接部11和所述前盖6的所述焊接部61激光点焊固定。
在本实施例中，所述发声器件还包括与所述振膜31间隔设置的弹性支撑件7，所述振膜31朝向所述磁路系统5的一侧固设有骨架34，所述弹性支撑件7的一端固定于所述外围部12，其另一端固定于所述骨架34，所述音圈33固定于所述骨架34。其中，所述音圈33振动时，通过所述骨架34带动所述振膜31和所述弹性支撑件7一同振动。
所述骨架34包括固定于所述振膜31的主体部341以及分别自所述主体部341向背离所述振膜31方向延伸形成的第一延伸部343和第二延伸部345，所述第一延伸部343与所述第二延伸部345间隔设置。其中，所述弹性支撑件7远离所述盆架1的一端固定于所述第一延伸部343；所述音圈33固定于所述第二延伸部345。
如图3所示，所述主体部341呈环状结构，所述第一延伸部343自所述主体部341的外周缘延伸形成，所述第二延伸部345自所述主体部341的内周缘延伸形成。环状结构的所述主体部341有利于减轻所述骨架34的整体重量以降低发声器件的振动质量，从而有利于提高发声器件的灵敏度。
在本实施例中，所述第二延伸部345上设有多个豁口347，多个所述豁口347将所述第二延伸部345分隔为多个隔离岛345A。也就是说，所述音圈33固定于所述第二延伸部345的多个隔离岛345A。通过设置多个豁口347使得所述音圈33固定于所述第二延伸部345后，所述音圈33与所述第二延伸部345之间具有气流通道，该气流通道可以在发声器件振动时平衡发声器件内的气压，从而有利于提高发声器件的声学性能。
所述振膜31包括固定于所述前盖6且具有切中孔351的膜本体35及固设于所述膜本体的内周缘并覆盖所述切中孔351的球顶37。其中，所述膜本体35的外周缘固定于所述前盖6，即所述边缘部31A至少为所述膜本体35的外周缘一部分。
所述弹性支撑件7包括柔性电路板71和辅助振膜73。
所述柔性电路板71包括固定于所述盆架1的固持部711、固定于所述第一延伸部343的固定部713及连接所述固持部711和所述固定部713的弹性臂715。
在本实施例中，其中一所述柔性电路板71还包括自所述固定部713向所述振膜方向弯折延伸的焊盘部717，所述焊盘部717上设有与所述音圈33的引线电连接。一方面，所述柔性电路板71起支撑固定所述振动系统3的作用，另一方面所述柔性电路板71的所述固持部711和所述焊盘部717上均设有焊盘（图未示），所述弹性臂715和所述固定部713内设有导电路径以电性连接所述固持部711和所述焊盘部717上的焊盘，其中，所述焊盘部717上的焊盘与所述音圈33的引线连接起电性连接所述音圈33的作用，所述固持部711上的焊盘与外部电路连接，以使得所述音圈33通过所述柔性电路板71与外部电路电连接，发声器件工作时，外部电路的电信号通过所述柔性电路板71传输至所述音圈33。
可以理解的是，在其他实施方式中，所述柔性电路板71还可以不包括焊盘部，相应地，与所述音圈33的引线电连接的焊盘设置在所述固定部上。
所述辅助振膜73包括固设于所述固持部711远离所述盆架1一侧的第一部分731、固定于所述固定部713远离所述第一延伸部343一侧的第二部分733及连接所述第一部分731和所述第二部分733的折环735，所述折环735向背离所述柔性电路板71的方向凸起。所述辅助振膜73的设置可以提高发声器件的声学性能。
所述磁路系统5包括固持于所述外围部12的磁碗51以及收容于所述磁碗51内的磁体部53。
所述磁碗51包括底壁511及自所述底壁511周缘向所述振膜31方向弯折延伸形成的侧壁513，所述磁体部53固设于所述底壁511并与所述侧壁513间隔形成所述磁间隙5A。
所述侧壁513包括两个分别位于所述底壁511相对两侧的第一侧壁515及两个分别位于所述底壁511另外相对两侧的第二侧壁517，所述第一侧壁515远离所述音圈33的一侧设有所述弹性支撑件7，所述第二侧壁517向远离所述音圈33的方向弯折延伸形成有延展部519，所述延展部519固定于所述外围部12。
所述磁体部53包括固设于所述底壁511的永磁体531及固设于所述永磁体531远离所述底壁511一侧的极芯533。
其中，所述永磁体可以是天然磁体，也可以是人造磁体（例如，磁钢）；所述极芯533由导磁材料制成，从而可以增强所述磁间隙5A内的磁通量。
可以理解的是，在其他实施方式中，所述磁体部53可以仅为永磁体，也可以有多个永磁体和多个极芯叠加形成。
本发明提供的发声器件通过将所述焊接部61焊接固定于所述盆架1，从而可以降低前盖或/和出现脱离的风险。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (9)

  1. 一种发声器件，其包括盆架、收容于所述盆架的振动系统、固定于所述盆架并具有磁间隙的磁路系统以及前盖，所述振动系统包括振膜以及插入所述磁间隙以驱动所述振膜振动发声的音圈，其特征在于：所述振膜固定于所述前盖，所述盆架包括与所述前盖相连的承接部和自所述承接部延伸的固定所述磁路系统的外围部，沿所述振膜的振动方向，所述振膜在所述前盖上的正投影与所述承接部在所述前盖上的正投影不重叠，其中，所述盆架和所述前盖均由金属材料制成，所述前盖具有焊接部，所述焊接部与所述承接部通过激光点焊固定。
  2. 根据权利要求1所述的发声器件，其特征在于：所述焊接部设有多个，且多个所述焊接部间隔设置。
  3. 根据权利要求2所述的发声器件，其特征在于：多个所述焊接部分别位于所述前盖的倒角处。
  4. 根据权利要求2或3所述的发声器件，其特征在于：所述振膜具有固定于所述前盖的边缘部，所述边缘部包括多个间隔设置的第一边缘部及设于相邻两所述第一边缘部之间的第二边缘部，所述第二边缘部到所述承接部的距离大于第一边缘部到所述承接部的距离。
  5. 根据权利要求1所述的发声器件，其特征在于：所述发声器件还包括与所述振膜间隔设置的弹性支撑件，所述振膜朝向所述磁路系统的一侧固设有骨架，所述骨架包括固定于所述振膜的主体部以及分别自所述主体部向背离所述振膜方向延伸形成的第一延伸部和第二延伸部，所述第一延伸部和所述第二延伸部间隔设置，其中，所述弹性支撑件的一端固定于所述外围部，其另一端固定于所述第一延伸部；所述音圈固定于所述第二延伸部。
  6. 根据权利要求5所述的发声器件，其特征在于：所述第二延伸部上设有多个豁口，多个所述豁口将所述第二延伸部分隔为多个隔离岛。
  7. 根据权利要求5所述的发声器件，其特征在于：所述弹性支撑件包括柔性电路板和辅助振膜，所述柔性电路板包括固定于所述外围部的固持部、固定于所述第一延伸部的固定部及连接所述固持部和所述固定部的弹性臂，所述辅助振膜包括固设于所述固持部远离所述外围部一侧的第一部分、固定于所述固定部远离所述第一延伸部一侧的第二部分及连接所述第一部分和所述第二部分的折环，所述折环向背离所述柔性电路板的方向凸起。
  8. 根据权利要求5-7中任一项所述的发声器件，其特征在于：所述磁路系统包括固持于所述外围部的磁碗以及收容于所述磁碗内的磁体部，所述磁碗包括底壁及自所述底壁周缘向所述振膜方向弯折延伸形成的侧壁，所述磁体部固设于所述底壁并与所述侧壁间隔形成所述磁间隙。
  9. 根据权利要求8所述的发声器件，其特征在于：所述侧壁包括两个分别位于所述底壁相对两侧的第一侧壁及两个分别位于所述底壁另外相对两侧的第二侧壁，所述第一侧壁远离所述音圈的一侧设有所述弹性支撑件，所述第二侧壁向远离所述音圈的方向弯折延伸形成有延展部，所述延展部固定于所述外围部。
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