WO2020134461A1 - 一种发声器件 - Google Patents

一种发声器件 Download PDF

Info

Publication number
WO2020134461A1
WO2020134461A1 PCT/CN2019/113323 CN2019113323W WO2020134461A1 WO 2020134461 A1 WO2020134461 A1 WO 2020134461A1 CN 2019113323 W CN2019113323 W CN 2019113323W WO 2020134461 A1 WO2020134461 A1 WO 2020134461A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
diaphragm
fixed
housing
magnetic
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/113323
Other languages
English (en)
French (fr)
Inventor
肖波
刘晓东
令狐荣林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Technologies Pte Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Technologies Pte Ltd
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 AAC Acoustic Technologies Shenzhen Co Ltd, AAC Technologies Pte Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2020134461A1 publication Critical patent/WO2020134461A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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 devices, in particular to an audible device.
  • a sound-generating device is an electro-acoustic device that converts an audio electrical signal into a sound signal without sound leakage, and is widely used in communication terminal devices such as mobile phones, fixed phones, headsets, etc. to achieve audio output
  • the present invention provides a sound-emitting device, the sound-emitting device includes a housing with a housing space and a vibration system and a driving unit accommodated in the housing space, the vibration system includes a fixed to the housing A diaphragm of the body, a magnetic diaphragm that drives the diaphragm to vibrate, and a transmission member connecting the diaphragm and the magnetic diaphragm; the magnetic diaphragm and the diaphragm are spaced apart, and the magnetic diaphragm It includes a fixing part fixed to the casing and a body part bent and extending from the fixing part and disposed opposite to the diaphragm, the body part is suspended in the accommodating space, and the body part is far away from The transmission member is interposed between one end of the fixing portion and the diaphragm, and the magnetic vibration plate pushes the diaphragm to vibrate and sound through the transmission member; and the driving unit includes a coil wound around
  • At least two coils of the driving unit are connected in parallel and are arranged symmetrically with respect to the diaphragm
  • the drive unit further includes a pole core fixed in the housing, and the pole core is fixed to the magnet portion.
  • the magnet portion includes opposed and spaced apart magnet pairs forming a magnetic gap
  • the magnetic vibration plate is disposed between the magnet pairs and extends through the magnetic gap to the magnet pair
  • the pole core is wound around the outer periphery of the magnetic vibration plate in a ring shape, and the magnet pair is fixed to the pole core and located between the magnetic vibration plate and the pole core.
  • the sound-emitting device further includes a frame fixed to the housing, the frame includes a mounting wall and an extending wall that extends in the same direction from opposite ends of the mounting wall, and the magnetic The vibration plate and the drive unit are installed between the extension walls, and the fixing portion of the magnetic vibration plate is fixed to the installation wall.
  • the housing includes a bottom wall disposed opposite to the diaphragm and a side wall bent from a periphery of the bottom wall and extending toward the diaphragm, the mounting wall is fixed to The bottom wall, the extension wall and the side wall are attached.
  • the coil is fixed to the bottom wall and is limited between the two extension walls.
  • the pole core is fixed to the bottom wall and limited between the two extension walls.
  • the sound-emitting device further includes a circuit board fixed to the side wall and opposite to the mounting wall, the circuit board electrically connecting the coil to an external circuit.
  • the circuit board is fixed outside the receiving space, the coil has a lead extending outside the housing, the side wall is provided with a through hole corresponding to the lead, the lead is The through hole extends outside the casing and is electrically connected to the circuit board.
  • the diaphragm includes a main body fixed to the housing and a reinforcing plate interposed between the main body and the transmission member.
  • the sound-emitting device further includes a cover plate connected to a side of the housing close to the diaphragm, the main body is located between the housing and the cover plate, the A sound hole is provided through the cover plate.
  • the frame, the magnetic vibration plate and the transmission member are integrally formed.
  • the magnet portion is located between the transmission member and the coil.
  • the sound-generating device of the present invention can increase the driving force, increase the vibration amplitude, improve the sensitivity of the product, and broaden the corresponding range; increase the driving dead point, improve the vibration balance, and improve the product distortion.
  • FIG. 1 is an exploded schematic view of the three-dimensional structure of the sound-generating device of the present invention
  • FIG. 2 is a schematic perspective view of the sound-emitting device shown in FIG. 1;
  • FIG. 3 is a schematic cross-sectional structural view of the sound-emitting device shown in FIG. 1 along line A_A;
  • FIG. 4 is a perspective view of a partial structure of a sound-generating device of the present invention.
  • FIG. 5 is a three-dimensional schematic diagram of the driving unit of the sound-generating device of the present invention.
  • the horizontal direction of the drawing paper is the horizontal direction
  • the vertical direction of the drawing paper is the vertical direction.
  • the purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the contents of the present invention, rather than to limit the present invention.
  • the present invention provides a sound-emitting device
  • the sound-emitting device includes a housing 1 having a housing space 2 and a vibration system 3 and a drive unit 5 housed in the housing space 2
  • the vibration system 3 includes a diaphragm 31 fixed to the housing 1, a magnetic vibration plate 32 that drives the vibration of the diaphragm 31, and a transmission member 33 connecting the diaphragm 31 and the magnetic vibration plate 32; the magnetic vibration plate 32 and the vibration The membranes 31 are arranged at intervals.
  • the magnetic vibration plate 32 includes a fixing portion 321 fixed to the housing 1 and a body portion 323 that is bent and extended from the fixing portion 321 and that is opposite to the diaphragm 31.
  • the body portion 323 is suspended in the receiving space 2
  • a transmission member 33 is interposed between the end of the body portion 323 away from the fixed portion 3 21 and the diaphragm 31, and the magnetic vibration plate 32 pushes the diaphragm 31 through the transmission member 33 Vibration sounding; at least two coils of the driving unit 5 are connected in parallel; the magnetic vibration plate 32 includes at least two, at least two magnetic vibration plates 32 corresponding to different positions of the vibration diaphragm 31, the magnetic vibration plate 32 corresponds to the driving unit 5 one by one , See Figure 1 and Figure 4 for details.
  • FIGS. 3, 4 and 5 there are two driving units 5, specifically, the first driving unit 51 and the second driving unit 52 are symmetrically disposed in the housing space 2,
  • the first driving unit 51 and the second driving unit 52 have the same structure. Therefore, the first driving unit 51 is used as an example for description, and the second driving unit 52 is not described in detail.
  • the first driving unit 51 includes a coil 511 wound around the body portion 323 and relatively fixed to the housing 1, and a magnet portion 512 relatively fixed to the housing 1, the magnet portion 512 on the body portion 323
  • the orthographic projection falls on the body portion 323 and is close to the transmission member 33, and the magnet portion 512 is spaced from the body portion 323; each driving unit further includes a pole core 513 fixed in the housing 1, the pole core 513 is fixed to the magnet portion 512, the pole The core 513 has a ring shape, and the magnet portion 512 is fixed on the inner wall surface of the pole core 513, see FIGS. 1 and 5 for details.
  • the magnet portion 512 includes opposed and spaced pairs of magnets forming a magnetic gap
  • the magnetic vibration plate 32 is disposed between the pair of magnets and extends beyond the pair of magnets through the magnetic gap
  • the pole core 513 has a ring shape
  • the magnet pair is fixed to the pole core 513 and is located between the magnetic vibration plate 32 and the pole core 513.
  • the magnet pairs are spaced along the vibration direction of the magnetic vibration plate 32 and have opposite polarities.
  • the vibration plate 32 is polarized by the energizing coil 511.
  • the polarized vibration plate 32 and the magnet portion 512 There is mutual attraction or repulsion, so that the end of the vibration plate 32 away from the fixing portion 321 reciprocates in the vibration direction, and the diaphragm 31 is pushed via the transmission member 33 to vibrate and sound.
  • the sound-emitting device further includes a frame 7 fixed to the housing 1, the frame 7 includes a mounting wall 71 and an extension wall 72 that is bent from the opposite ends of the mounting wall 71 in the same direction, the magnetic vibration plate 32 and the driving unit are mounted on Between the extension walls 72, the fixing portion 321 of the magnetic vibration plate 32 is fixed to the mounting wall 71; the frame 7, the magnetic vibration plate 32 and the transmission member 33 are integrally formed, which is not limited thereto, and in other embodiments, the frame 7, magnetic vibration
  • the plate 32 and the transmission member 33 may also be split structures, which are determined according to actual structural needs.
  • the housing 1 includes a bottom wall 11 opposite to the diaphragm 31 and a side wall 12 bent from the periphery of the bottom wall 11 and extending toward the diaphragm 31.
  • the mounting wall 71 is fixed to the bottom wall 11 and extends
  • the wall 72 is attached to the side wall 12, preferably parallel to the side wall 12;
  • the coil 511 is fixed to the bottom wall 11 and is limited to between the two extension walls 72;
  • the pole core 513 is fixed to the bottom wall 11 and is limited to between the two extension walls 72 ;
  • the diaphragm 31 includes a body 311 fixed to the housing 1 to And a reinforcing plate 312 interposed between the main body 311 and the transmission member 33.
  • the sound-emitting device further includes a circuit board 8 fixed to the side wall 12 and opposite to the mounting wall 71, the circuit board 8 electrically connects the coil 51 1 to an external circuit; the circuit board 8 is fixed outside the receiving space 2, and the coil 511 has an extension
  • the lead 514 to the outside of the casing 1 is provided with a through hole 121 corresponding to the lead 514 on the side wall 12.
  • the lead 514 extends to the outside of the casing 1 through the through hole 121 and is electrically connected to the circuit board 8.
  • the circuit board 8 may also be fixed on the side of the side wall 12 close to the receiving space 2, and the present invention is not limited to this.
  • the sound-emitting device further includes a cover plate 4, which is attached to the side of the housing 1 near the diaphragm 31, and the main body 311 is located between the housing body 1 and the cover plate 4, and the cover plate 4 is provided with a sound output hole 41 therethrough.
  • a cover plate 4 which is attached to the side of the housing 1 near the diaphragm 31, and the main body 311 is located between the housing body 1 and the cover plate 4, and the cover plate 4 is provided with a sound output hole 41 therethrough.
  • the coil 511 is wound around the outer periphery of the magnetic vibration plate 32 to form an electromagnet structure, the magnetic vibration plate 32 is polarized, and the end of the polarized magnetic vibration plate 32 away from the coil 511 and the magnet portion 512 are mutually
  • the action drives the diaphragm 31 to vibrate and sound through the transmission member 33, and is driven in parallel by two driving units, which increases the driving force, increases the vibration amplitude, improves the sensitivity of the product, and broadens the corresponding range.
  • the sound-generating device of the present invention can increase the driving force, increase the vibration amplitude, increase the sensitivity of the product, and broaden the corresponding range; increase the driving dead point, improve the vibration balance, and improve the product distortion.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Electromagnetism (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本申请提供一种发声器件，其包括壳体以及收容于壳体内的振动系统和驱动单元，振动系统包括振膜、驱动振膜振动的磁性振动板、以及连接振膜与磁性振动板的传动件；至少两个所述磁性振动板分别对应驱动所述振膜的不同位置振动，磁性振动板与驱动单元一一对应。本申请能够增加驱动力，增大振动幅度，提升产品灵敏度，拓宽相应范围；增加驱动支点，改善振动平衡性，改善产品失真。

Description

一种发声器件
技术领域
[0001] 本实用新型涉及电声器件技术领域， 特别地涉及一种发声器件。
背景技术
[0002] 发声器件是一种在无声音泄露条件下将音频电信号转换成声音信号的电声器件 ， 广泛应用于移动电话、 固定电话、 耳机等通信终端设备中， 实现音频的输出
[0003] 随着移动设备的不断发展， 发声器件的结构不断地更新， 常见的音圈驱动振膜 振动发声的动圈式发声器件中， 音圈长时间振动容易受损进而影响发声效果， 且音圈由于需要与外部电连接， 音圈振动可能会对电连接的稳定性造成影响， 且振膜部的不同区域的振幅不均， 影响发声器件的音质效果。
发明概述
技术问题
[0004] 因此， 有必要提供一种新的发声器件。
问题的解决方案
技术解决方案
[0005] 为了解决上述问题， 本实用新型提供了发声器件， 所述发声器件包括具有收容 空间的壳体以及收容于所述收容空间内的振动系统和驱动单元， 所述振动系统 包括固定于壳体的振膜、 驱动所述振膜振动的磁性振动板、 以及连接所述振膜 与所述磁性振动板的传动件； 所述磁性振动板与所述振膜间隔设置， 所述磁性 振动板包括固定于所述壳体的固定部以及自所述固定部弯折延伸并与所述振膜 相对设置的本体部， 所述本体部悬置于所述收容空间内， 所述本体部远离所述 固定部的一端与所述振膜之间夹设所述传动件， 所述磁性振动板通过所述传动 件推动所述振膜振动发声； 所述驱动单元包括绕设于所述本体部并与所述壳体 相对固定的线圈、 以及与所述壳体相对固定的磁体部， 所述磁体部在所述本体 部上的正投影落入所述本体部上且靠近所述传动件， 所述磁体部与所述本体部 间隔设置， 至少两个所述磁性振动板分别对应驱动所述振膜的不同位置振动， 所述磁性振动板与所述驱动单元一一对应。
[0006] 作为一种改进， 至少两个所述驱动单元的线圈并联， 且相对所述振膜对称设置
[0007] 作为一种改进， 所述驱动单元还包括固定在所述壳体内的极芯， 所述极芯与所 述磁体部固定。
[0008] 作为一种改进， 所述磁体部包括相对且间隔设置形成磁间隙的磁体对， 所述磁 性振动板设置于所述磁体对之间并经所述磁间隙延伸至所述磁体对之外， 所述 极芯呈环形绕设于所述磁性振动板外周， 所述磁体对固定于所述极芯并位于所 述磁性振动板与所述极芯之间。
[0009] 作为一种改进， 所述发声器件还包括固定于所述壳体的框架， 所述框架包括安 装壁以及自所述安装壁相对两端同向弯折延伸的延伸壁， 所述磁性振动板及所 述驱动单元安装于所述延伸壁之间， 所述磁性振动板的固定部固定于所述安装 壁。
[0010] 作为一种改进， 所述壳体包括与所述振膜相对设置的底壁以及自所述底壁周缘 弯折并朝所述振膜方向延伸的侧壁， 所述安装壁固定于所述底壁， 所述延伸壁 与所述侧壁贴合。
[0011] 作为一种改进， 所述线圈与所述底壁固定且限位于两所述延伸壁之间。
[0012] 作为一种改进， 所述极芯与所述底壁固定且限位于两所述延伸壁之间。
[0013] 作为一种改进， 所述发声器件还包括固定在所述侧壁并与所述安装壁相对的电 路板， 所述电路板将所述线圈与外部电路电连接。
[0014] 作为一种改进， 所述电路板固定于所述收容空间外， 所述线圈具有延伸至所述 壳体外的引线， 所述侧壁对应所述引线开设有通孔， 所述引线经所述通孔延伸 至所述壳体外并与所述电路板电连接。
[0015] 作为一种改进， 所述振膜包括固定与所述壳体的主体以及夹设于所述主体与所 述传动件之间的加强板。
[0016] 作为一种改进， 所述发声器件还包括盖接在所述壳体靠近所述振膜一侧的盖板 ， 所述主体位于所述壳体与所述盖板之间， 所述盖板贯穿开设有出声孔。 [0017] 作为一种改进， 所述框架、 所述磁性振动板及所述传动件一体成型。
[0018] 作为一种改进， 所述磁体部位于所述传动件与所述线圈之间。
发明的有益效果
有益效果
[0019] 本实用新型的发声器件能够增加驱动力， 增大振动幅度， 提升产品灵敏度， 拓 宽相应范围； 增加驱动止点， 改善振动平衡性， 改善产品失真。
对附图的简要说明
附图说明
[0020] 图 1为本实用新型的发声器件的立体结构分解示意图；
[0021] 图 2为图 1所示的发声器件的立体结构示意图；
[0022] 图 3为图 1所示发声器件沿 A_A线的剖面结构示意图；
[0023] 图 4为本实用新型的发声器件的局部结构立体图；
[0024] 图 5为本实用新型的发声器件的驱动单元的立体结构示意图。
发明实施例
具体实施方式
[0025] 下面通过具体实施方式结合附图对本实用新型作进一步详细说明， 以便能够更 好地理解本实用新型的方案以及其各方面的优点。 在以下的实施例中， 以附图 纸面的左右方向为水平方向， 以附图纸面的上下方向为竖直方向。 另外， 提供 以下具体实施方式的目的是便于对本实用新型的内容更清楚透彻的理解， 而不 是对本实用新型的限制。
[0026] 如图 1和图 2所示， 本实用新型提供了一种发声器件， 该发声器件包括具有收容 空间 2的壳体 1以及收容于该收容空间 2内的振动系统 3和驱动单元 5， 其中， 振动 系统 3包括固定于壳体 1的振膜 31、 驱动该振膜 31振动的磁性振动板 32、 以及连 接振膜 31与磁性振动板 32的传动件 33 ; 磁性振动板 32与振膜 31间隔设置， 磁性 振动板 32包括固定于壳体 1的固定部 321以及自固定部 321弯折延伸并与振膜 31相 对设置的本体部 323， 该本体部 323悬置于收容空间 2内， 本体部 323远离固定部 3 21的一端与振膜 31之间夹设传动件 33， 磁性振动板 32通过传动件 33推动振膜 31 振动发声； 至少两个驱动单元 5的线圈并联； 磁性振动板 32包括至少两个， 至少 两个磁性振动板 32对应推动振膜 31的不同位置振动， 磁性振动板 32与驱动单元 5 一一对应， 具体参见图 1和图 4。
[0027] 在本实施方式中， 如图 3、 图 4和图 5所示， 驱动单元 5为两个， 具体地， 第一驱 动单元 51和第二驱动单元 52对称设置在收容空间 2内， 相对所述振膜 31对称设置 ， 由于第一驱动单元 51和第二驱动单元 52的结构相同， 因此， 以第一驱动单元 5 1为示例进行说明， 第二驱动单元 52不作赘述。
[0028] 优选地， 第一驱动单元 51包括绕设于本体部 323并与壳体 1相对固定的线圈 511 、 以及与壳体 1相对固定的磁体部 512， 磁体部 512在本体部 323上的正投影落入 本体部 323上且靠近传动件 33 , 磁体部 512与本体部 323间隔设置； 各驱动单元还 包括固定在壳体 1内的极芯 513 , 极芯 513与磁体部 512固定， 极芯 513呈环形， 磁 体部 512固定在极芯 513的内壁面上， 具体参见图 1和图 5。
[0029] 在本实施方式中， 磁体部 512包括相对且间隔设置形成磁间隙的磁体对， 磁性 振动板 32设置于磁体对之间并经磁间隙延伸至磁体对之外， 极芯 513呈环形绕设 于磁性振动板 32外周， 磁体对固定于极芯 513并位于磁性振动板 32与极芯 513之 间。 如图 3所示， 磁体对沿磁性振动板 32的振动方向间隔设置， 且极性相对， 振 动板 32在通电线圈 511的作用下发生极化， 极化后的振动板 32与磁体部 512之间 产生相互吸引或排斥， 因而振动板 32远离固定部 321的一端沿振动方向往复振动 ， 并经由传动件 33推动振膜 31振动发声。
[0030] 发声器件还包括固定于壳体 1的框架 7 , 该框架 7包括安装壁 71以及自安装壁 71 相对两端同向弯折延伸的延伸壁 72, 磁性振动板 32及驱动单元安装于延伸壁 72 之间， 磁性振动板 32的固定部 321固定于安装壁 71 ; 框架 7、 磁性振动板 32及传 动件 33—体成型， 不限于此， 在其它实施方式中， 框架 7、 磁性振动板 32及传动 件 33也可以为分体结构， 具体根据实际结构需要来确定。
[0031] 进一步地， 壳体 1包括与振膜 31相对设置的底壁 11以及自底壁 11周缘弯折并朝 振膜 31方向延伸的侧壁 12， 安装壁 71固定于底壁 11， 延伸壁 72与侧壁 12贴合， 优选与侧壁 12平行； 线圈 511与底壁 11固定且限位于两延伸壁 72之间； 极芯 513 与底壁 11固定且限位于两延伸壁 72之间； 振膜 31包括固定于壳体 1的主体 311以 及夹设于主体 311与传动件 33之间的加强板 312。
[0032] 发声器件还包括固定在侧壁 12并与安装壁 71相对的电路板 8， 电路板 8将线圈 51 1与外部电路电连接； 电路板 8固定于收容空间 2外， 线圈 511具有延伸至壳体 1外 的引线 514, 侧壁 12对应引线 514开设有通孔 121， 引线 514经通孔 121延伸至壳体 1外并与电路板 8电连接。 在本实用新型的其他实施例中， 电路板 8也可以固定在 侧壁 12靠近收容空间 2的一侧， 本实用新型不限于此。
[0033] 另外， 发声器件还包括盖接在壳体 1靠近振膜 31—侧的盖板 4, 主体 311位于壳 体 i与盖板 4之间， 盖板 4贯穿开设有出声孔 41。 需要说明的是， 上述仅用于说明 ， 不能理解成对本实用新型的限制。
[0034] 在本实用新型中， 线圈 511绕设在磁性振动板 32外周形成电磁铁结构， 磁性振 动板 32被极化， 极化后的磁性振动板 32远离线圈 511的一端与磁体部 512相互作 用经传动件 33推动振膜 31振动发声， 通过两个驱动单元并联驱动， 增大增加驱 动力， 增大振动幅度， 提升产品灵敏度， 拓宽相应范围。
[0035] 与现有技术相比， 本实用新型的发声器件能够增加驱动力， 增大振动幅度， 提 升产品灵敏度， 拓宽相应范围； 增加驱动止点， 改善振动平衡性， 改善产品失 真。
[0036] 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， 可以做出各种更改和变化， 但这些均属于实用新型的保护范围。

Claims

权利要求书
[权利要求 1] 一种发声器件， 其特征在于， 所述发声器件包括具有收容空间的壳体 以及收容于所述收容空间内的振动系统和驱动单元， 所述振动系统包 括固定于壳体的振膜、 驱动所述振膜振动的磁性振动板、 以及连接所 述振膜与所述磁性振动板的传动件； 所述磁性振动板与所述振膜间隔 设置， 所述磁性振动板包括固定于所述壳体的固定部以及自所述固定 部弯折延伸并与所述振膜相对设置的本体部， 所述本体部悬置于所述 收容空间内， 所述本体部远离所述固定部的一端与所述振膜之间夹设 所述传动件， 所述磁性振动板通过所述传动件推动所述振膜振动发声 ; 所述驱动单元包括绕设于所述本体部并与所述壳体相对固定的线圈 、 以及与所述壳体相对固定的磁体部， 所述磁体部在所述本体部上的 正投影落入所述本体部上， 所述磁体部与所述本体部间隔设置， 至少 两个所述磁性振动板分别对应驱动所述振膜的不同位置振动， 所述磁 性振动板与所述驱动单元一一对应。
[权利要求 2] 根据权利要求 1所述的发声器件， 其特征在于， 至少两个所述驱动单 元的线圈并联， 且相对所述振膜对称设置。
[权利要求 3] 根据权利要求 1所述的发声器件， 其特征在于， 所述驱动单元还包括 固定在所述壳体内的极芯， 所述极芯与所述磁体部固定。
[权利要求 4] 根据权利要求 3所述的发声器件， 其特征在于， 所述磁体部包括相对 且间隔设置并形成磁间隙的磁体对， 所述磁性振动板设置于所述磁体 对之间并经所述磁间隙延伸至所述磁体对之外， 所述极芯呈环形并绕 设于所述磁性振动板及所述磁体对外周， 所述磁体对固定于所述极芯
[权利要求 5] 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 固定于所述壳体的框架， 所述框架包括安装壁以及自所述安装壁相对 两端同向弯折延伸的延伸壁， 所述磁性振动板及所述驱动单元安装于 所述延伸壁之间， 所述固定部固定于所述安装壁。
[权利要求 6] 根据权利要求 5所述的发声器件， 其特征在于， 所述壳体包括与所述 振膜相对设置的底壁以及自所述底壁周缘弯折并朝所述振膜方向延伸 的侧壁， 所述安装壁固定于所述底壁， 所述延伸壁与所述侧壁贴合。
[权利要求 7] 根据权利要求 6所述的发声器件， 其特征在于， 所述线圈与所述底壁 固定且限位于两所述延伸壁之间。
[权利要求 8] 根据权利要求 6所述的发声器件， 其特征在于， 所述极芯与所述底壁 固定且限位于两所述延伸壁之间。
[权利要求 9] 根据权利要求 6所述的发声器件， 其特征在于， 所述发声器件还包括 固定在所述侧壁并与所述安装壁相对的电路板， 所述电路板将所述线 圈与外部电路电连接。
[权利要求 10] 根据权利要求 9所述的发声器件， 其特征在于， 所述电路板固定于所 述收容空间外， 所述线圈具有延伸至所述壳体外的引线， 所述侧壁对 应所述引线开设有通孔， 所述引线经所述通孔延伸至所述壳体外并与 所述电路板电连接。
[权利要求 11] 根据权利要求 1-10任一项所述的发声器件， 其特征在于， 所述振膜包 括固定与所述壳体的主体以及夹设于所述主体与所述传动件之间的加 强板。
[权利要求 12] 根据权利要求 11所述的发声器件， 其特征在于， 所述发声器件还包括 盖接在所述壳体靠近所述振膜一侧的盖板， 所述主体位于所述壳体与 所述盖板之间， 所述盖板贯穿开设有出声孔。
[权利要求 13] 根据权利要求 5所述的发声器件， 其特征在于， 所述框架、 所述磁性 振动板及所述传动件一体成型。
[权利要求 14] 根据权利要求 1所述的发声器件， 其特征在于， 所述磁体部位于所述 传动件与所述线圈之间。
PCT/CN2019/113323 2018-12-28 2019-10-25 一种发声器件 Ceased WO2020134461A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201822239474.8 2018-12-28
CN201822239474.8U CN209390332U (zh) 2018-12-28 2018-12-28 一种发声器件

Publications (1)

Publication Number Publication Date
WO2020134461A1 true WO2020134461A1 (zh) 2020-07-02

Family

ID=67862545

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/113323 Ceased WO2020134461A1 (zh) 2018-12-28 2019-10-25 一种发声器件

Country Status (3)

Country Link
US (1) US10979800B2 (zh)
CN (1) CN209390332U (zh)
WO (1) WO2020134461A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209390332U (zh) * 2018-12-28 2019-09-13 瑞声科技(新加坡)有限公司 一种发声器件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205081956U (zh) * 2015-07-31 2016-03-09 瑞声光电科技(常州)有限公司 发声器件
WO2016192316A1 (zh) * 2015-06-05 2016-12-08 歌尔声学股份有限公司 振动发声装置
CN206894886U (zh) * 2017-04-14 2018-01-16 瑞声光电科技(常州)有限公司 微型发声器
CN209390332U (zh) * 2018-12-28 2019-09-13 瑞声科技(新加坡)有限公司 一种发声器件

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203416409U (zh) * 2013-07-23 2014-01-29 瑞声声学科技(常州)有限公司 振动发声器
CN205141961U (zh) * 2015-11-03 2016-04-06 瑞声光电科技(常州)有限公司 振动电机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016192316A1 (zh) * 2015-06-05 2016-12-08 歌尔声学股份有限公司 振动发声装置
CN205081956U (zh) * 2015-07-31 2016-03-09 瑞声光电科技(常州)有限公司 发声器件
CN206894886U (zh) * 2017-04-14 2018-01-16 瑞声光电科技(常州)有限公司 微型发声器
CN209390332U (zh) * 2018-12-28 2019-09-13 瑞声科技(新加坡)有限公司 一种发声器件

Also Published As

Publication number Publication date
US20200213718A1 (en) 2020-07-02
CN209390332U (zh) 2019-09-13
US10979800B2 (en) 2021-04-13

Similar Documents

Publication Publication Date Title
US11026025B2 (en) Speaker
US11223897B2 (en) Sound producing device
US8649550B2 (en) Multi-magnet system and speaker using same
CN205051863U (zh) 长冲程动圈式扬声器
US8379907B2 (en) Vibrating member and electroacoustic transducer having same
CN110166910A (zh) 扬声器
KR200455084Y1 (ko) 다기능 마이크로 스피커
KR101057078B1 (ko) 다기능 마이크로 스피커
US20180146294A1 (en) Vibration sound-producing apparatus
US10979821B2 (en) Sound generator
WO2024000686A1 (zh) 同轴扬声器
WO2020134345A1 (zh) 发声器件
US10820113B2 (en) Speaker
WO2020134346A1 (zh) 发声器件
WO2024000693A1 (zh) 同轴扬声器
WO2024044920A1 (zh) 同轴扬声器
CN118678269A (zh) 发声装置和电子设备
CN118678270A (zh) 发声装置和电子设备
KR20110001968U (ko) 다기능 마이크로 스피커
CN113785599B (zh) 具有对称的音圈和磁路的微型扬声器
CN209526840U (zh) 扬声器和耳机
WO2022006922A1 (zh) 扬声器
WO2020134461A1 (zh) 一种发声器件
KR100987464B1 (ko) 지향성 스피커
WO2018170946A1 (zh) 动磁式扬声器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19903813

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19903813

Country of ref document: EP

Kind code of ref document: A1