WO2024044884A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2024044884A1
WO2024044884A1 PCT/CN2022/115481 CN2022115481W WO2024044884A1 WO 2024044884 A1 WO2024044884 A1 WO 2024044884A1 CN 2022115481 W CN2022115481 W CN 2022115481W WO 2024044884 A1 WO2024044884 A1 WO 2024044884A1
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WO
WIPO (PCT)
Prior art keywords
fixed
main body
sound
pad
yoke
Prior art date
Application number
PCT/CN2022/115481
Other languages
English (en)
French (fr)
Inventor
时阳
Original Assignee
瑞声光电科技(常州)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声光电科技(常州)有限公司 filed Critical 瑞声光电科技(常州)有限公司
Priority to JP2022576873A priority Critical patent/JP2024533889A/ja
Priority to PCT/CN2022/115481 priority patent/WO2024044884A1/zh
Priority to US18/073,467 priority patent/US20240073587A1/en
Publication of WO2024044884A1 publication Critical patent/WO2024044884A1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
    • 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
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • 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
    • H04R9/025—Magnetic circuit
    • H04R9/027—Air gaps using a magnetic fluid
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • 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
    • 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 utility model relates to the technical field of electroacoustic conversion, and in particular to a sound-generating device used in a portable mobile terminal.
  • Existing sound-generating devices generally include a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a diaphragm for vibrating sound and a voice coil fixed to the diaphragm and driving the diaphragm.
  • the circuit system includes a magnetic yoke and magnets; the voice coil is inserted in the magnetic gap of the magnetic circuit system, and when energized, it drives the diaphragm to vibrate back and forth to produce sound.
  • flexible circuit boards and conductive terminals formed in the basin frame are often provided in sound-generating devices to provide power to the voice coil; specifically, the conductive terminals include internal pads and external pads, voice coil leads and flexible circuits.
  • the flexible circuit board is electrically connected to the internal pad, and the external pad is electrically connected to the external circuit to form an electrical path.
  • the welding point between the flexible circuit board and the internal pad is set inside the basin frame, which not only takes up the space of the sound-generating device. The internal design space is limited, and the welding process is also more inconvenient.
  • This utility model is to provide a sound-generating device with sufficient internal design space and simpler technology.
  • the present utility model proposes a sound-generating device, which includes a basin frame with a receiving space, a vibration system contained in the receiving space, and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a frame fixed on The diaphragm of the basin frame and the voice coil fixed to the diaphragm and inserted in the magnetic gap.
  • the magnetic circuit system includes a magnetic yoke fixed to the basin frame and a magnetic yoke fixed to the magnetic yoke.
  • the sound-generating device further includes a flexible circuit board that electrically connects the voice coil to an external circuit, the flexible circuit board includes a first pad portion connected to the voice coil, and a third pad portion electrically connected to the external circuit. Two pad parts and an intermediate connection part connecting the first pad part and the second pad part, the second pad part being fixed to the frame and located outside the receiving space.
  • the voice coil has a racetrack shape
  • the first pad portion is fixed in the short axis direction of the voice coil and at an end of the voice coil away from the diaphragm.
  • the basin frame includes a main body portion fixed to the diaphragm, the main body portion includes a first fixing surface fixed to the diaphragm and a second fixing surface opposite to the first fixing surface along the vibration direction.
  • a fixing surface, the second pad portion is fixed to the second fixing surface.
  • the main body part includes a first main body part extending along the long axis direction, a second main body part extending along the short axis direction, and a corner portion connected to the first main body part and the second main body part.
  • the second pad portion is fixed to the connection corner portion.
  • the magnets include a main magnet fixed at the middle position of the yoke, first side magnets spaced along the long axis direction on the circumference of the main magnet, and first side magnets arranged on the circumference of the main magnet along the short axis direction.
  • the second side magnet steel on the peripheral side of the main magnet steel, the first side magnet steel and the second side magnet steel form the magnetic gap with the main magnet steel, and the first side magnet steel and the third side magnet steel form the magnetic gap.
  • An escape gap is formed between the two sides of the magnetic steel, the first pad portion is received in the magnetic gap, and the middle connecting portion extends out of the magnetic gap through the escape gap.
  • the middle connection part includes a first connection part extending from the first pad part and passing through the avoidance gap, a bend extending from the first connection part and surrounding the second side magnet.
  • a second connecting portion extending outside and a third connecting portion extending from the second connecting portion and fixed to the second main body portion, and the third connecting portion is connected to the second pad portion.
  • the flexible circuit board includes two, the two flexible circuit boards are arranged on the short axis of the voice coil, and the two second pad parts are fixed diagonally to all the parts of the main body part. Describe the connecting corners.
  • the sound-generating device further includes a conductive terminal fixed to the main body part, and the conductive terminal includes three third pad parts, one of the third pad part and one of the second pad part. Electrically connected, the remaining two third pad portions are fixed to the connection corner portion of the main body portion along another diagonal line.
  • the yoke includes a yoke bottom fixed to the main magnet steel and a yoke flange bent and extended from an edge in the minor axis direction of the yoke bottom, and the yoke flange is fixed to the yoke.
  • the third connecting part is sandwiched between the yoke flange and the second main body part.
  • the basket further includes a boss portion extending from an inner edge of the connecting corner portion toward the yoke, the second pad portion is provided outside the boss portion, and the boss portion Fixedly connected to the bottom of the yoke.
  • the sound-generating device includes a basin frame with a receiving space, a vibration system accommodated in the receiving space, and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a frame fixed on the basin.
  • the magnetic circuit system includes a yoke fixed to the basin frame and a magnet steel fixed to the yoke
  • the sound-generating device also includes the A flexible circuit board with a voice coil electrically connected to an external circuit.
  • the flexible circuit board includes a first pad portion connected to the voice coil, a second pad portion electrically connected to the external circuit, and a second pad portion connected to the first pad.
  • the intermediate connection portion between the second pad portion and the second pad portion, the second pad portion is fixed to the frame and is located outside the receiving space.
  • the flexible circuit board is directly led out as an external pad, without the need to provide a welding joint in the vibration space inside the basin frame, and the sound-generating device is released.
  • the design space is within the design space, and welding is performed directly outside the basin frame, which reduces the complexity of the welding process and effectively improves the yield rate and product reliability.
  • Figure 1 is a perspective view of the sound-generating device in the utility model
  • Figure 2 is an exploded view of the sound-generating device in the present utility model
  • Figure 3 is a perspective view of the sound-generating device of the present invention with the magnetic yoke removed;
  • Figure 4 is a perspective view of the sound-generating device of the present invention from another perspective
  • Figure 5 is a cross-sectional view along line A-A in Figure 1;
  • Figure 6 is a combined perspective view of the flexible circuit board and conductive terminals of the sound-generating device of the present invention.
  • the present invention provides a sound-generating device 100, which includes a basin frame 1 with a receiving space 10, a vibration system 2 contained in the receiving space 10, and a magnetic device with a magnetic gap 30.
  • the vibration system 2 includes a diaphragm 21 fixed on the basin frame 1 and a voice coil 22 fixed on the diaphragm 21 and inserted in the magnetic gap 30 .
  • the vibration system 2 also includes a diaphragm fixing member 23 that supports the diaphragm 21 on the basin frame 1 and a dome 24 fixed to the diaphragm 21; it can be seen that the diaphragm
  • the fixing part 23 is fixed on the basin frame 1
  • the diaphragm 21 is fixed on the diaphragm fixing part 23 .
  • the magnetic circuit system 3 includes a magnetic yoke 31 fixed on the basin frame 1 , a magnetic steel 32 fixed on the magnetic yoke 31 , and a pole core 33 fixed on the surface of the magnetic steel 21 away from the magnetic yoke 31 .
  • the sound-generating device 100 further includes a flexible circuit board 4 that electrically connects the voice coil 22 to an external circuit.
  • the flexible circuit board 4 includes a first pad portion 41 connected to the voice coil 22 , and a first pad portion 41 electrically connected to the external circuit.
  • the connected second pad portion 42 and the intermediate connecting portion 43 connecting the first pad portion 41 and the second pad portion 42 are fixed to the basket 1 and located at outside the accommodation space 10.
  • the voice coil 22 is in the shape of a racetrack
  • the first pad portion 41 is fixed in the short axis direction of the voice coil 22 and at an end of the voice coil 22 away from the diaphragm 21 .
  • the basket 1 includes a main body portion 11 fixed to the diaphragm 21 .
  • the main body portion 11 includes a first fixing surface 111 fixed to the diaphragm 21 and opposite to the first fixing surface 111 along the vibration direction.
  • a second fixing surface 112 is provided, and the second pad portion 42 is fixed to the second fixing surface 112 .
  • the main body part 11 includes a first main body part 113 extending along the long axis direction, a second main body part 114 extending along the short axis direction, and a corner portion disposed at a corner position and connecting the first main body part 113 and the main body part 114 .
  • the second pad portion 42 is fixed to the connection corner portion 115 of the second main body portion 114 . That is, it can be understood that the second pad portion 42 is fixed to the surface of the connection corner portion 115 away from the diaphragm 21 in the vibration direction.
  • the magnet 32 includes a main magnet 321 fixed at the middle position of the yoke 31 , first side magnets 322 spaced along the long axis direction on the peripheral side of the main magnet 321 and along the short axis.
  • the direction of the second side magnet 323 is located on the peripheral side of the main magnet 321.
  • the first side magnet 322 and the second side magnet 323 form the magnetic gap 30 with the main magnet 321.
  • An avoidance gap 324 is formed between the first side magnet 322 and the second side magnet 323.
  • the first pad portion 41 is received in the magnetic gap 30, and the middle connecting portion 43 passes through the magnetic gap 30.
  • An escape gap 324 extends beyond the magnetic gap 30 .
  • the pole core 33 includes a main pole core 331 fixed on the main magnet steel 321 and a secondary pole core 332 fixed on the first side magnet steel 322 and the second side magnet steel 323.
  • the secondary pole core 332 has an annular structure, and the outer side of the secondary pole core 332 is fixed to the basin frame 1 to further support the magnetic circuit system 3 on the basin frame 1 .
  • the middle connection portion 43 of the flexible circuit board 4 includes a first connection portion 431 extending from the first pad portion 41 and passing through the avoidance gap 324.
  • the second connecting portion 432 is bent and extended around the outside of the second side magnet 323 and the third connecting portion 433 is extended from the second connecting portion 432 and fixed to the second main body portion 114.
  • the third connection part 433 is connected to the second pad part 42 .
  • the flexible circuit board 4 includes two, the two flexible circuit boards 4 are provided on the short axis side of the voice coil 22 , and the two second pad portions 42 are fixed diagonally.
  • the connecting corner portion 115 of the main body portion 11 is fixed diagonally.
  • the sound-generating device 100 further includes a conductive terminal 5 fixed on the main body 11 .
  • the conductive terminal 5 includes three third pad parts 51 , one of the third pad parts 51 and one of the second pad parts 51 .
  • the pad portion 42 is electrically connected, and the remaining two third pad portions 51 are fixed to the connection corner portion 115 of the main body portion 11 along another diagonal line.
  • the voice coil 22 is electrically connected to the flexible circuit board 4 and then electrically connected to an external circuit through the conductive terminal 4 , thereby realizing power supply to the voice coil 22 .
  • the yoke 31 includes a yoke bottom 311 fixed to the main magnet 321 and a yoke flange 312 bent and extended from an edge of the yoke bottom 311 in the short axis direction.
  • the yoke flange 312 Fixed to the second main body part 114 , the third connecting part 433 is sandwiched between the yoke flange 312 and the second main body part 114 .
  • the basket 1 further includes a boss portion 116 extending from the inner edge of the connecting corner portion 115 toward the yoke 31 , and the second pad portion 42 is provided outside the boss portion 116 .
  • the boss portion 116 is fixedly connected to the yoke bottom 311 .
  • the sound-generating device includes a basin frame with a receiving space, a vibration system accommodated in the receiving space, and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a frame fixed on the basin.
  • the magnetic circuit system includes a yoke fixed to the basin frame and a magnet steel fixed to the yoke
  • the sound-generating device also includes the A flexible circuit board with a voice coil electrically connected to an external circuit.
  • the flexible circuit board includes a first pad portion connected to the voice coil, a second pad portion electrically connected to the external circuit, and a second pad portion connected to the first pad.
  • the intermediate connection portion between the second pad portion and the second pad portion, the second pad portion is fixed to the frame and is located outside the receiving space.
  • the flexible circuit board is directly led out as an external pad, without the need to provide a welding joint in the vibration space inside the basin frame, and the sound-generating device is released.
  • the design space is within the design space, and welding is performed directly outside the basin frame, which reduces the complexity of the welding process and effectively improves the yield rate and product reliability.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本申请提供的发声器件包括盆架、振动系统和磁路系统，所述振动系统包括振膜以及固定于所述振膜的音圈，所述磁路系统包括磁轭以及固定于所述磁轭的磁钢，所述发声器件还包括将所述音圈与外部电路电连接的柔性电路板，所述柔性电路板包括与所述音圈连接的第一焊盘部、与外部电路电连接的第二焊盘部以及连接所述第一焊盘部和所述第二焊盘部的中间连接部，所述第二焊盘部固定于所述盆架且位于所述收容空间之外。通过将柔性电路板的第二焊盘部设置在盆架之外，直接将柔性电路板引出做外接焊盘，无需在盆架的振动空间内设置焊接处，释放了发声器件内的设计空间，且直接在盆架外进行焊接，降低了焊接工艺的复杂度，有效提升了良率及产品可靠性。

Description

发声器件 技术领域
本实用新型涉及电声转换技术领域，尤其涉及一种用于便携式移动终端的发声器件。
 背景技术
随着便携式移动终端技术的发展，人们对便携式移动终端的音效要求越来越高；与此同时，随着便携式移动终端轻薄化发展，发声器件也同样需要顺应轻薄化的发展潮流。
 技术问题
现有的发声器件一般包括盆架、固定于盆架的振动系统和具有磁间隙的磁路系统，振动系统包括用于振动发声的振膜和固定于振膜并驱动振膜的音圈，磁路系统包括磁轭以及磁钢；音圈插设在磁路系统的磁间隙内，通电后带动振膜往复振动发声。相关技术中，常在发声器件中设置柔性电路板以及成型于盆架内的导电端子来实现对音圈的供电；具体的，导电端子包括内部焊盘与外部焊盘，音圈引线与柔性电路板电连接，柔性电路板与内部焊盘电连接，外部焊盘与外部电路电连接从而形成电通路，而柔性电路板与内部焊盘的焊接处设置在盆架内部，不仅占用了发声器件的内部设计空间，且焊接工序也较为不便。
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内部设计空间更足且工艺更为简洁的发声器件。
为了达到上述目的，本实用新型提出了一种发声器件，其包括具有收容空间的盆架、收容于所述收容空间内的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜并插设于所述磁间隙内的音圈，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的磁钢，所述发声器件还包括将所述音圈与外部电路电连接的柔性电路板，所述柔性电路板包括与所述音圈连接的第一焊盘部、与外部电路电连接的第二焊盘部以及连接所述第一焊盘部和所述第二焊盘部的中间连接部，所述第二焊盘部固定于所述盆架且位于所述收容空间之外。
优选的，所述音圈呈跑道形，所述第一焊盘部固定于所述音圈短轴方向且固定于所述音圈远离所述振膜的一端。
优选的，所述盆架包括与所述振膜固定的主体部，所述主体部包括与所述振膜固定的第一固定面以及沿振动方向与所述第一固定面相对设置的第二固定面，所述第二焊盘部固定于所述第二固定面。
优选的，所述主体部包括沿长轴方向延伸的第一主体部、沿短轴方向延伸的第二主体部以及设于角部位置且连接所述第一主体部和所述第二主体部的连接角部，所述第二焊盘部固定于所述连接角部。
优选的，所述磁钢包括固定于所述磁轭中间位置的主磁钢、沿长轴方向间隔设于所述主磁钢周侧的第一边磁钢以及沿短轴方向设于所述主磁钢周侧的第二边磁钢，所述第一边磁钢和所述第二边磁钢与所述主磁钢形成所述磁间隙，所述第一边磁钢与所述第二边磁钢之间形成避让间隙，所述第一焊盘部收容于所述磁间隙，所述中间连接部穿过所述避让间隙延伸出所述磁间隙。
优选的，所述中间连接部包括自所述第一焊盘部延伸并穿过所述避让间隙的第一连接部、自所述第一连接部弯折延伸并绕所述第二边磁钢外侧延伸的第二连接部以及自所述第二连接部延伸并固定于所述第二主体部的第三连接部，所述第三连接部与所述第二焊盘部连接。
优选的，所述柔性电路板包括两个，两个所述柔性电路板设于所述音圈的短轴，两个所述第二焊盘部沿对角线固定于所述主体部的所述连接角部。
优选的，所述发声器件还包括固定于所述主体部的导电端子，所述导电端子包括三个第三焊盘部，其中一个所述第三焊盘部与一个所述第二焊盘部电连接，其余两个所述第三焊盘部沿另一对角线固定于所述主体部的所述连接角部。
优选的，所述磁轭包括与所述主磁钢固定的磁轭底部以及自所述磁轭底部的短轴方向的边缘弯折延伸的磁轭翻边，所述磁轭翻边固定于所述第二主体部，所述第三连接部夹设于所述磁轭翻边与所述第二主体部之间。
优选的，所述盆架还包括自所述连接角部的内边缘朝向所述磁轭延伸的凸台部，所述第二焊盘部设于所述凸台部外侧，所述凸台部与所述磁轭底部固定连接。
 有益效果
与相关技术相比，本实用新型提供的发声器件包括具有收容空间的盆架、收容于所述收容空间内的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜的音圈，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的磁钢，所述发声器件还包括将所述音圈与外部电路电连接的柔性电路板，所述柔性电路板包括与所述音圈连接的第一焊盘部、与外部电路电连接的第二焊盘部以及连接所述第一焊盘部和所述第二焊盘部的中间连接部，所述第二焊盘部固定于所述盆架且位于所述收容空间之外。通过将所述柔性电路板的所述第二焊盘部设置在盆架之外，直接将柔性电路板引出做外接焊盘，无需在盆架内部的振动空间内设置焊接处，释放了发声器件内的设计空间，且直接在盆架外进行焊接，降低了焊接工艺的复杂度，有效提升了良率及产品可靠性。
 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为本实用新型中发声器件的立体图；
图2为本实用新型中发声器件的爆炸图；；
图3为本实用新型中发声器件去除磁轭后的立体图；
图4为本实用新型中发声器件另一视角的立体图；
图5为图1中沿A-A线的剖视图；
图6为本实用新型中发声器件的柔性电路板和导电端子的组合立体图。
 本发明的最佳实施方式
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。
如图1-图6所示，本实用新型提供了一种发声器件100，其包括具有收容空间10的盆架1、收容于所述收容空间10内的振动系统2和具有磁间隙30的磁路系统3。
所述振动系统2包括固定于所述盆架1的振膜21以及固定于所述振膜21并插设于所述磁间隙30内的音圈22。具体的，所述振动系统2还包括将所述振膜21支撑于所述盆架1的振膜固定件23以及固定于所述振膜21的球顶24；可以看出，所述振膜固定件23固定于所述盆架1上，所述振膜21固定于所述振膜固定件23。
所述磁路系统3包括固定于所述盆架1的磁轭31、固定于所述磁轭31的磁钢32以及固定于所述磁钢21远离所述磁轭31表面的极芯33。
所述发声器件100还包括将所述音圈22与外部电路电连接的柔性电路板4，所述柔性电路板4包括与所述音圈22连接的第一焊盘部41、与外部电路电连接的第二焊盘部42以及连接所述第一焊盘部41和所述第二焊盘部42的中间连接部43，所述第二焊盘部42固定于所述盆架1且位于所述收容空间10之外。
具体的，所述音圈22呈跑道形，所述第一焊盘部41固定于所述音圈22短轴方向且固定于所述音圈22远离所述振膜21的一端。所述盆架1包括与所述振膜21固定的主体部11，所述主体部11包括与所述振膜21固定的第一固定面111以及沿振动方向与所述第一固定面111相对设置的第二固定面112，所述第二焊盘部42固定于所述第二固定面112。进一步的，所述主体部11包括沿长轴方向延伸的第一主体部113、沿短轴方向延伸的第二主体部114以及设于角部位置且连接所述第一主体部113和所述第二主体部114的连接角部115，所述第二焊盘部42固定于所述连接角部115。即，可以理解的是，所述第二焊盘部42固定于所述连接角部115沿振动方向远离所述振膜21的表面。
具体的，所述磁钢32包括固定于所述磁轭31中间位置的主磁钢321、沿长轴方向间隔设于所述主磁钢321周侧的第一边磁钢322以及沿短轴方向设于所述主磁钢321周侧的第二边磁钢323，所述第一边磁钢322和所述第二边磁钢323与所述主磁钢321形成所述磁间隙30，所述第一边磁钢322与所述第二边磁钢323之间形成避让间隙324，所述第一焊盘部41收容于所述磁间隙30，所述中间连接部43穿过所述避让间隙324延伸出所述磁间隙30。相应的，所述极芯33包括固定于所述主磁钢321的主极芯331以及固定于所述第一边磁钢322和所述第二边磁钢323的副极芯332，可以理解的是，所述副极芯332为环形结构，所述副极芯332的外侧固定于所述盆架1，进一步将所述磁路系统3支撑于所述盆架1。
进一步的，所述柔性电路板4的所述中间连接部43包括自所述第一焊盘部41延伸并穿过所述避让间隙324的第一连接部431、自所述第一连接部431弯折延伸并绕所述第二边磁钢323外侧延伸的第二连接部432以及自所述第二连接部432延伸并固定于所述第二主体部114的第三连接部433，所述第三连接部433与所述第二焊盘部42连接。
可以理解的是，所述柔性电路板4包括两个，两个所述柔性电路板4设于所述音圈22的短轴侧，两个所述第二焊盘部42沿对角线固定于所述主体部11的所述连接角部115。
所述发声器件100还包括固定于所述主体部11的导电端子5，所述导电端子5包括三个第三焊盘部51，其中一个所述第三焊盘部51与一个所述第二焊盘部42电连接，其余两个所述第三焊盘51部沿另一对角线固定于所述主体部11的所述连接角部115。所述音圈22与所述柔性电路板4电连接后再通过所述导电端子4与外部电路电连接，由此实现对所述音圈22的供电。
所述磁轭31包括与所述主磁钢321固定的磁轭底部311以及自所述磁轭底部311的短轴方向的边缘弯折延伸的磁轭翻边312，所述磁轭翻边312固定于所述第二主体部114，所述第三连接部433夹设于所述磁轭翻边312与所述第二主体部114之间。所述盆架1还包括自所述连接角部115的内边缘朝向所述磁轭31延伸的凸台部116，所述第二焊盘部42设于所述凸台部116外侧，所述凸台部116与所述磁轭底部311固定连接。
与相关技术相比，本实用新型提供的发声器件包括具有收容空间的盆架、收容于所述收容空间内的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜的音圈，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的磁钢，所述发声器件还包括将所述音圈与外部电路电连接的柔性电路板，所述柔性电路板包括与所述音圈连接的第一焊盘部、与外部电路电连接的第二焊盘部以及连接所述第一焊盘部和所述第二焊盘部的中间连接部，所述第二焊盘部固定于所述盆架且位于所述收容空间之外。通过将所述柔性电路板的所述第二焊盘部设置在盆架之外，直接将柔性电路板引出做外接焊盘，无需在盆架内部的振动空间内设置焊接处，释放了发声器件内的设计空间，且直接在盆架外进行焊接，降低了焊接工艺的复杂度，有效提升了良率及产品可靠性。
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，其包括具有收容空间的盆架、收容于所述收容空间内的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜并插设于所述磁间隙内的音圈，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的磁钢，其特征在于，所述发声器件还包括将所述音圈与外部电路电连接的柔性电路板，所述柔性电路板包括与所述音圈连接的第一焊盘部、与外部电路电连接的第二焊盘部以及连接所述第一焊盘部和所述第二焊盘部的中间连接部，所述第二焊盘部固定于所述盆架且位于所述收容空间之外。
  2. 根据权利要求1所述的发声器件，其特征在于，所述音圈呈跑道形，所述第一焊盘部固定于所述音圈短轴方向且固定于所述音圈远离所述振膜的一端。
  3. 根据权利要求2所述的发声器件，其特征在于，所述盆架包括与所述振膜固定的主体部，所述主体部包括与所述振膜固定的第一固定面以及沿振动方向与所述第一固定面相对设置的第二固定面，所述第二焊盘部固定于所述第二固定面。
  4. 根据权利要求3所述的发声器件，其特征在于，所述主体部包括沿长轴方向延伸的第一主体部、沿短轴方向延伸的第二主体部以及设于角部位置且连接所述第一主体部和所述第二主体部的连接角部，所述第二焊盘部固定于所述连接角部。
  5. 根据权利要求4所述的发声器件，其特征在于，所述磁钢包括固定于所述磁轭中间位置的主磁钢、沿长轴方向间隔设于所述主磁钢周侧的第一边磁钢以及沿短轴方向设于所述主磁钢周侧的第二边磁钢，所述第一边磁钢和所述第二边磁钢与所述主磁钢形成所述磁间隙，所述第一边磁钢与所述第二边磁钢之间形成避让间隙，所述第一焊盘部收容于所述磁间隙，所述中间连接部穿过所述避让间隙延伸出所述磁间隙。
  6. 根据权利要求5所述的发声器件，其特征在于，所述中间连接部包括自所述第一焊盘部延伸并穿过所述避让间隙的第一连接部、自所述第一连接部弯折延伸并绕所述第二边磁钢外侧延伸的第二连接部以及自所述第二连接部延伸并固定于所述第二主体部的第三连接部，所述第三连接部与所述第二焊盘部连接。
  7. 根据权利要求6所述的发声器件，其特征在于，所述柔性电路板包括两个，两个所述柔性电路板设于所述音圈的短轴，两个所述第二焊盘部沿对角线固定于所述主体部的所述连接角部。
  8. 根据权利要求7所述的发声器件，其特征在于，所述发声器件还包括固定于所述主体部的导电端子，所述导电端子包括三个第三焊盘部，其中一个所述第三焊盘部与一个所述第二焊盘部电连接，其余两个所述第三焊盘部沿另一对角线固定于所述主体部的所述连接角部。
  9. 根据权利要求8所述的发声器件，其特征在于，所述磁轭包括与所述主磁钢固定的磁轭底部以及自所述磁轭底部的短轴方向的边缘弯折延伸的磁轭翻边，所述磁轭翻边固定于所述第二主体部，所述第三连接部夹设于所述磁轭翻边与所述第二主体部之间。
  10. 根据权利要求9所述的发声器件，其特征在于，所述盆架还包括自所述连接角部的内边缘朝向所述磁轭延伸的凸台部，所述第二焊盘部设于所述凸台部外侧，所述凸台部与所述磁轭底部固定连接。
PCT/CN2022/115481 2022-08-29 2022-08-29 发声器件 WO2024044884A1 (zh)

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CN208158868U (zh) * 2018-04-25 2018-11-27 歌尔科技有限公司 一种发声装置
KR102373333B1 (ko) * 2021-01-20 2022-03-11 주식회사 이엠텍 3접점 터미널을 구비하는 마이크로스피커
CN217116394U (zh) * 2022-04-06 2022-08-02 瑞声光电科技(常州)有限公司 发声器件

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CN105959895A (zh) * 2016-06-06 2016-09-21 瑞声科技(新加坡)有限公司 扬声器装配方法
CN208158868U (zh) * 2018-04-25 2018-11-27 歌尔科技有限公司 一种发声装置
KR102373333B1 (ko) * 2021-01-20 2022-03-11 주식회사 이엠텍 3접점 터미널을 구비하는 마이크로스피커
CN217116394U (zh) * 2022-04-06 2022-08-02 瑞声光电科技(常州)有限公司 发声器件

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