WO2020181887A1 - 扬声器 - Google Patents

扬声器 Download PDF

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Publication number
WO2020181887A1
WO2020181887A1 PCT/CN2019/129716 CN2019129716W WO2020181887A1 WO 2020181887 A1 WO2020181887 A1 WO 2020181887A1 CN 2019129716 W CN2019129716 W CN 2019129716W WO 2020181887 A1 WO2020181887 A1 WO 2020181887A1
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WO
WIPO (PCT)
Prior art keywords
voice coil
diaphragm
auxiliary
housing
auxiliary diaphragm
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Application number
PCT/CN2019/129716
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English (en)
French (fr)
Inventor
李军
Original Assignee
歌尔股份有限公司
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Filing date
Publication date
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2020181887A1 publication Critical patent/WO2020181887A1/zh

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    • 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 technical field of acoustic devices, in particular to a loudspeaker.
  • the dual diaphragm system of the main diaphragm and the auxiliary diaphragm is used in the industry to suppress the polarization.
  • the traditional dual diaphragm system generally adopts a single voice coil structure. The diaphragm is attached to the upper end of the voice coil, and the auxiliary diaphragm is attached to the lower end of the voice coil.
  • the auxiliary diaphragm Due to the high height of the single voice coil, the auxiliary diaphragm is greatly restricted by space, and the folding ring height of the auxiliary diaphragm is small.
  • the thinning of the folded ring part of the auxiliary diaphragm will cause the BL value to decrease and the sensitivity to decrease, which is not conducive to the improvement of product performance.
  • the main purpose of the present invention is to provide a loudspeaker, which aims to solve the problem that the loudspeaker in the prior art cannot meet the demand for large-amplitude vibration of the auxiliary diaphragm.
  • the present invention provides a loudspeaker including a housing, a vibration system and a magnetic circuit system housed in the housing, the vibration system including a diaphragm group and a voice coil group that drives the diaphragm group to vibrate,
  • the diaphragm group includes a main diaphragm and an auxiliary diaphragm
  • the voice coil group includes a first voice coil and a second voice coil
  • the first voice coil is disposed between the main diaphragm and the auxiliary diaphragm.
  • the second voice coil is arranged on a side of the auxiliary diaphragm facing away from the main diaphragm.
  • the auxiliary diaphragm includes a first horizontal portion, a first folding ring portion, and a first fixing portion sequentially arranged from the inside to the outside, and the first horizontal portion is fixed between the first voice coil and the second voice coil ,
  • the first fixing part is fixed on the housing.
  • the main diaphragm includes a central portion, a second folding ring portion, and a second fixing portion sequentially arranged from the inside to the outside.
  • the second fixing portion is fixed on the housing, and the first voice coil faces the One end of the main diaphragm is attached to the central portion, one end of the first voice coil facing the auxiliary diaphragm is attached to the first horizontal portion, and the second voice coil facing the auxiliary diaphragm One end is attached to the first horizontal part.
  • the first folding ring portion protrudes in a direction away from the first voice coil
  • the second folding ring portion protrudes in a direction away from or toward the first voice coil
  • the vibration system further includes a centering support piece, the centering support piece is arranged between the first voice coil and the auxiliary diaphragm, the centering support piece includes a base and is arranged on the base One end of the conductive circuit is electrically connected to the first voice coil and the second voice coil, and the other end of the conductive circuit is electrically connected to an external circuit.
  • the first voice coil and the second voice coil are connected in series through the conductive circuit.
  • the centering piece includes a piece horizontal portion, a piece fixing portion, and a connecting portion connecting the piece horizontal portion and the piece fixing portion, and the piece fixing portion is fixed on the housing, so The horizontal portion of the support piece is fixed between the first voice coil and the auxiliary diaphragm.
  • the number of the auxiliary diaphragm and the number of the centering support pieces are both two, and the two auxiliary diaphragms and the two centering support pieces are arranged in a one-to-one correspondence.
  • the magnetic circuit system includes a basin frame fixed to the housing, a central magnet installed on the basin frame, and side magnets distributed outside the central magnet, and a magnetic gap is formed between the central magnet and the side magnets , The first voice coil and the second voice coil are both suspended in the magnetic gap.
  • the speaker includes a first voice coil and a second voice coil, which is equivalent to disassembling the single voice coil structure into a double voice coil structure, and the auxiliary diaphragm is no longer arranged at the lower end of the second voice coil.
  • the auxiliary diaphragm is arranged between the first voice coil and the second voice coil, which increases the installation position of the auxiliary diaphragm, increases the vibration space of the auxiliary diaphragm, and meets the demand for large-amplitude vibration of the auxiliary diaphragm.
  • Fig. 1 is an exploded schematic diagram of a speaker according to an embodiment of the present invention
  • Figure 2 is a schematic cross-sectional view of a loudspeaker according to an embodiment of the invention.
  • FIG. 3 is a schematic cross-sectional view of the vibration system and the basin frame of the speaker in an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a centering support piece in a speaker according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of assembling the centering support piece and the first voice coil and the second voice coil in the speaker according to an embodiment of the present invention.
  • the directional indication is only used to explain that it is in a specific posture (as shown in the drawings). If the specific posture changes, the relative positional relationship, movement, etc. of the components below will also change the directional indication accordingly.
  • the present invention provides a speaker.
  • the speaker 100 includes a housing 10, a vibration system 20 and a magnetic circuit system 30, and the vibration system 20 and the magnetic circuit system 30 are housed in the housing 10.
  • the vibration system 20 includes a diaphragm group and a voice coil group that drives the diaphragm group to vibrate.
  • the diaphragm group includes a main diaphragm 21 and an auxiliary diaphragm 22.
  • the voice coil group includes a first voice coil 23 and a second voice coil 24.
  • the first voice coil 23 is arranged between the main diaphragm 21 and the auxiliary diaphragm 22, and the second voice coil 24 is arranged on the side of the auxiliary diaphragm 22 away from the main diaphragm 21.
  • the main diaphragm 21, the first voice coil 23, the auxiliary diaphragm 22, and the second voice coil 24 of this embodiment are arranged from top to bottom, and the first voice coil 23
  • the upper end is attached to the lower surface of the main diaphragm 21
  • the lower end of the first voice coil 23 is attached to the upper surface of the auxiliary diaphragm 22,
  • the upper end of the second voice coil 24 is attached to the lower surface of the auxiliary diaphragm 22.
  • the speaker 100 of this embodiment includes a first voice coil 23 and a second voice coil 24, which is equivalent to disassembling a single voice coil structure into a double voice coil structure, and the auxiliary diaphragm 22 is no longer arranged at the lower end of the second voice coil 24 Instead, the auxiliary diaphragm 22 is arranged between the first voice coil 23 and the second voice coil 24, so that the installation position of the auxiliary diaphragm 22 is raised, and the vibration space of the auxiliary diaphragm 22 is increased to meet the requirements of the auxiliary diaphragm 22. 22 large amplitude vibration requirements.
  • the auxiliary diaphragm 22 of this embodiment includes a first horizontal portion 221, a first folding ring portion 222, and a first fixing portion 223 which are sequentially arranged from the inside to the outside, wherein the first horizontal portion 221 is fixed on the first voice coil 23 and the second Between the two voice coils 24, the first fixing portion 223 is fixed on the housing 10 to fix both sides of the auxiliary diaphragm 22 to facilitate the vibration of the first folding ring portion 222.
  • the speaker 100 of the present embodiment has a higher installation position of the auxiliary diaphragm 22, which limits the vibration space of the first folding ring portion 222 less, that is, the first folding ring portion 222 has Sufficient vibration space can increase the height of the first folding ring portion 222, which is beneficial to improve the acoustic performance of the speaker 100.
  • the main diaphragm 21 of this embodiment includes a central portion 211, a second folding ring portion 212, and a second fixing portion 213 arranged in order from the inside to the outside.
  • the second fixing portion 213 is fixed on the housing 10, and the first voice coil 23 faces the main One end of the diaphragm 21 is attached to the central portion 211, the end of the first voice coil 23 facing the auxiliary diaphragm 22 is attached to the first horizontal portion 221, and the end of the second voice coil 24 facing the auxiliary diaphragm 22 is attached to the first horizontal portion 221.
  • the central portion 211 of the main diaphragm 21 is covered on the upper end of the first voice coil 23, the lower end of the first voice coil 23 is attached to the upper surface of the first horizontal portion 221 of the auxiliary diaphragm 22, and the second voice coil 24 The upper end is attached to the lower surface of the auxiliary diaphragm 22 to make the voice coil group drive the diaphragm group to vibrate, that is, the first voice coil 23 and the second voice coil 24 jointly drive the main diaphragm 21 and the auxiliary module to vibrate at the same time.
  • the design is reasonable.
  • the first folding ring portion 222 protrudes away from the first voice coil 23, and the second folding ring portion 212 protrudes away from or toward the first voice coil 23, that is, the first folding ring
  • the arc-shaped convex side of the portion 222 faces upward
  • the arc-shaped convex side of the second folding ring portion 212 faces downward or upward.
  • the first folding ring portion 222 and the second folding ring portion 212 can form a symmetrical support, and can provide a symmetrical restoring force when the voice coil assembly vibrates, reducing product distortion and improving reliability.
  • the vibration system 20 further includes a centering support plate 25.
  • the centering support plate 25 is disposed between the first voice coil 23 and the auxiliary diaphragm 22.
  • the centering support plate 25 includes a base body 251 and is disposed on the base body 251.
  • One end of the conductive circuit is electrically connected to the first voice coil 23 and the second voice coil 24, and the other end of the conductive circuit is electrically connected to the external circuit.
  • the other end of the conductive circuit can be connected to the terminal
  • a mobile phone is electrically connected to energize the first voice coil 23 and the second voice coil 24.
  • the arrangement of the centering support piece 25 plays a role in positioning, which can ensure that the first voice coil 23 and the second voice coil 24 reciprocate in the axial direction, and suppress the polarization problem of the first voice coil 23 and the second voice coil 24.
  • the centering support piece 25 is arranged between the first voice coil 23 and the auxiliary diaphragm 22, which can suppress the polarization problem while ensuring the vibration space of the auxiliary diaphragm 22, and meet the requirements of the auxiliary diaphragm 22 for large amplitude vibration.
  • the first voice coil 23 and the second voice coil 24 are connected in series through a conductive circuit, which facilitates the synchronous up and down movement of the first voice coil 23 and the second voice coil 24, and ensures that the main diaphragm 21 and the auxiliary diaphragm 22 vibrate. Synchronization.
  • the base 251 of this embodiment includes a branch horizontal portion 2511, a branch fixing portion 2513, and a connecting portion 2512 connecting the branch horizontal portion 2511 and the branch fixing portion 2513.
  • the branch fixing portion 2513 is fixed on the housing 10.
  • the horizontal part 2511 of the support piece is fixed between the first voice coil 23 and the auxiliary diaphragm 22 to fix the two sides of the centering support piece 25.
  • the centering support piece 25 is elastic and can follow the voice coil group and the diaphragm group. Axial reciprocating movement and movement, reasonable structure design, simple and convenient.
  • the number of auxiliary diaphragms 22 and the number of centering fins 25 are both two, and the two auxiliary diaphragms 22 and the two centering fins 25 are arranged in one-to-one correspondence.
  • the two auxiliary diaphragms 22 are arranged symmetrically, and the two auxiliary diaphragms 22 vibrate synchronously to maintain the sound balance of the speaker 100.
  • the two centering supports 25 are also arranged symmetrically, and the two qualitative supports and the two auxiliary vibrations
  • the films 22 are arranged in one-to-one correspondence, further suppressing the polarization problem of the first voice coil 23 and the second voice coil 24.
  • each centering support piece 25 includes two pads, and the two pads of one centering support piece 25 are the first pad 252 and the second pad. Disk 253, the two pads of the other centering support piece 25 are the third pad 254 and the fourth pad 255 respectively, wherein the first pad 252 and the second pad 253 are conductive, and the third pad 254 The fourth pad 255 is not conductive.
  • the current of the first voice coil 23 and the second voice coil 24 are the same.
  • the third pad 254 and the first voice coil 23 The start line is connected, the first pad 252 is connected to the end line of the first voice coil 23, the second pad 253 is connected to the start line of the second voice coil 24, and the fourth pad 255 is connected to the second voice coil 24.
  • the third pad 254 is connected to the start line of the second voice coil 24, and the first pad 252 is connected to the end line of the second voice coil 24.
  • the second pad 253 is connected to the start line of the first voice coil 23, and the fourth pad 255 is connected to the end line of the first voice coil 23; in another embodiment, the third pad 254 is connected to the first voice coil 23.
  • the start line of the coil 23 is connected, the second pad 253 is connected to the end line of the first voice coil 23, the first pad 252 is connected to the start line of the second voice coil 24, and the fourth pad 255 is connected to the first
  • the end wire of the voice coil 23 is conductive; in other embodiments, other connection methods can also be used, and it is necessary to ensure that the first voice coil 23 and the second voice coil 24 are connected in series, and the first voice coil 23 and the second voice coil 24 are connected in series. The current is the same.
  • the first voice coil 23 in this embodiment is formed by winding the first voice coil 23 wire; the second voice coil 24 is formed by winding the second voice coil 24 wire, and the diameter of the first voice coil 23 wire is the same as the first voice coil 23 wire.
  • the wire diameters of the voice coil 23 are different, and the height, resistance and weight of the first voice coil 23 and the second voice coil 24 can be freely matched to meet different usage requirements.
  • the magnetic circuit system 30 includes a basin frame 31 fixed to the housing 10, a central magnet 32 mounted on the basin frame 31, and side magnets 33 distributed outside the central magnet 32.
  • a magnetic gap is formed between the central magnet 32 and the variable magnet, and the first voice coil 23 and the second voice coil 24 are both suspended in the magnetic gap.
  • the magnetic gap of the magnetic circuit system 30 generates a magnetic field.
  • the first voice coil 23 and the second voice coil 24 reciprocate and cut the magnetic field lines in the magnetic gap to drive the main diaphragm 21 and the auxiliary diaphragm 22 to vibrate, thereby inspiring the air to sound and complete the electric Energy conversion between sounds.
  • the magnetic circuit system 30 of this embodiment further includes a central washer 34 arranged on the central magnet 32.
  • the first folding ring portion 222 of the auxiliary diaphragm 22 has sufficient vibration space, there is no need to add a groove structure on the upper surface of the basin frame 31, that is, the first folding ring on the basin frame 31 corresponding to the auxiliary diaphragm 22 The position of the part 222 will not be thinned, which improves the sensitivity and improves the product performance.
  • the vibration system 20 of the loudspeaker 100 of this embodiment further includes a reinforcing part 26 which is arranged at the upper end of the first voice coil 23 to adjust the acoustic performance of the loudspeaker 100.
  • the speaker 100 of this embodiment further includes a front cover 40, which cooperates with the housing 10 to form a protective frame, and the front cover 40 is provided with a sound outlet 401 through which sound is emitted.

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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

本发明公开一种扬声器，包括外壳、收容于所述外壳内的振动***和磁路***，所述振动***包括振膜组和驱动所述振膜组振动的音圈组，所述振膜组包括主振膜和辅助振膜，所述音圈组包括第一音圈和第二音圈，所述第一音圈设置在所述主振膜和所述辅助振膜之间，所述第二音圈设置在所述辅助振膜背离所述主振膜的一侧。本发明扬声器包括第一音圈和第二音圈，相当于将单音圈结构拆解为双音圈结构，而辅助振膜则不再设置在第二音圈的下端，而是将辅助振膜设置在第一音圈和第二音圈之间，使得辅助振膜的安装位置升高，增大了辅助振膜的振动空间，满足辅助振膜大振幅振动的需求。

Description

扬声器 技术领域
本发明涉及声学器件技术领域，特别涉及一种扬声器。
背景技术
随着手机技术的发展，对扬声器提了更高要求，产品越来越薄，振幅越来越大，振动空间越来越小。在产品振幅较大时，振动***偏振问题会加剧，目前行业中采用主振膜和辅助振膜的双振膜***来抑制偏振，但是，传统的双振膜***一般采用单音圈结构，主振膜贴于音圈的上端，而辅助振膜贴于音圈的下端，由于单音圈的高度较高，导致辅助振膜受空间限制较大，辅助振膜的折环高度较小，无法满足大振幅振动需求，且为了避让辅助振膜的折环部向下振动时拍打盆架，需要在盆架的上表面增加凹槽结构来进行避让，增加工艺成本的同时，将盆架上对应辅助振膜的折环部的部位压薄，会造成BL值降低，灵敏度下降，不利于产品性能的提升。
发明内容
本发明的主要目的是提出一种扬声器，旨在解决现有技术中扬声器无法满足辅助振膜大振幅振动的需求的问题。
为实现上述目的，本发明提出一种扬声器，包括外壳、收容于所述外壳内的振动***和磁路***，所述振动***包括振膜组和驱动所述振膜组振动的音圈组，所述振膜组包括主振膜和辅助振膜，所述音圈组包括第一音圈和第二音圈，所述第一音圈设置在所述主振膜和所述辅助振膜之间，所述第二音圈设置在所述辅助振膜背离所述主振膜的一侧。
优选地，所述辅助振膜包括由内向外依次设置的第一水平部、第一折环部和第一固定部，所述第一水平部固定在第一音圈和第二音圈之间，所述第一固定部固定在所述外壳上。
优选地，所述主振膜包括由内向外依次设置的中央部、第二折环部和第 二固定部，所述第二固定部固定在所述外壳上，所述第一音圈朝向所述主振膜的一端贴设于所述中央部，所述第一音圈朝向所述辅助振膜的一端贴设于所述第一水平部，所述第二音圈朝向所述辅助振膜的一端贴设于所述第一水平部。
优选地，所述第一折环部沿背离所述第一音圈的方向凸出，所述第二折环部沿背离或朝向所述第一音圈的方向凸出。
优选地，所述振动***还包括定心支片，所述定心支片设置于所述第一音圈和所述辅助振膜之间，所述定心支片包括基体和设置于基体上的导电电路，所述导电电路的一端与所述第一音圈及所述第二音圈电连接，所述导电电路的另一端与外部电路电连接。
优选地，所述第一音圈和第二音圈通过所述导电电路串联连接。
优选地，所述定心支片包括支片水平部、支片固定部以及连接所述支片水平部和支片固定部的连接部，所述支片固定部固定在所述外壳上，所述支片水平部固定在所述第一音圈和所述辅助振膜之间。
优选地，所述辅助振膜的数量和所述定心支片的数量均为两个，两个所述辅助振膜和两个所述定心支片一一对应布置。
优选地，所述第一音圈由第一音圈线绕设而成；所述第二音圈由第二音圈线绕设而成，所述第一音圈线的线径和第一音圈线的线径不同。
优选地，所述磁路***包括与所述外壳固定的盆架、安装在盆架上的中心磁铁以及分布于中心磁铁外侧的边磁铁，所述中心磁铁与所述边磁铁之间形成磁间隙，所述第一音圈和所述第二音圈均悬设于所述磁间隙内。
本发明的技术方案中，扬声器包括第一音圈和第二音圈，相当于将单音圈结构拆解为双音圈结构，而辅助振膜则不再设置在第二音圈的下端，而是将辅助振膜设置在第一音圈和第二音圈之间，使得辅助振膜的安装位置升高，增大了辅助振膜的振动空间，满足辅助振膜大振幅振动的需求。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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示出的结构获得其他的附图。
图1为本发明一实施例扬声器的分解示意图；
图2为本发明一实施例扬声器的截面示意图；
图3为本发明一实施例扬声器中振动***和盆架的截面示意图；
图4为本发明一实施例扬声器中定心支片的结构示意图；
图5为本发明一实施例扬声器中定心支片与第一音圈及第二音圈的装配示意图。
附图标号说明：
标号 名称 标号 名称
100 扬声器 2511 支片水平部
10 外壳 2512 连接部
20 振动*** 2513 支片固定部
21 主振膜 252 第一焊盘
211 中央部 253 第二焊盘
212 第二折环部 254 第三焊盘
213 第二固定部 255 第四焊盘
22 辅助振膜 26 补强部
221 第一水平部 30 磁路***
222 第一折环部 31 盆架
223 第一固定部 32 中心磁铁
23 第一音圈 33 边磁铁
24 第二音圈 34 中心华司
25 定心支片 40 前盖
251 基体 401 出声孔
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
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作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。
需要说明，若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提出一种扬声器。
如图1至图3所示，本实施例中，扬声器100包括外壳10、振动***20和磁路***30，振动***20和磁路***30收容于外壳10内。其中，振动***20包括振膜组和驱动振膜组振动的音圈组，振膜组包括主振膜21和辅助振膜22，音圈组包括第一音圈23和第二音圈24，第一音圈23设置在主振膜21和辅助振膜22之间，第二音圈24设置在辅助振膜22背离主振膜21的一侧。
具体地，如图2和图3所示，本实施例的主振膜21、第一音圈23、辅助振膜22以及第二音圈24由上至下依次布置，第一音圈23的上端贴在主振膜21的下表面，第一音圈23的下端贴在辅助振膜22的上表面，第二音圈24的上端则贴在辅助振膜22的下表面。本实施例扬声器100包括第一音圈23和第二音圈24，相当于将单音圈结构拆解为双音圈结构，而辅助振膜22则不再设置在第二音圈24的下端，而是将辅助振膜22设置在第一音圈23和第二音 圈24之间，使得辅助振膜22的安装位置升高，增大了辅助振膜22的振动空间，满足辅助振膜22大振幅振动的需求。
本实施例的辅助振膜22包括由内向外依次设置的第一水平部221、第一折环部222和第一固定部223，其中，第一水平部221固定在第一音圈23和第二音圈24之间，第一固定部223固定在外壳10上，以将辅助振膜22的两侧固定，利于第一折环部222振动。与单音圈结构的扬声器100相比，本实施例扬声器100由于辅助振膜22的安装位置升高，对第一折环部222的振动空间限制较小，即，第一折环部222具有足够的振动空间，可增大第一折环部222的高度，利于提高扬声器100的声学性能。
本实施例的主振膜21包括由内向外依次设置的中央部211、第二折环部212和第二固定部213，第二固定部213固定在外壳10上，第一音圈23朝向主振膜21的一端贴设于中央部211，第一音圈23朝向辅助振膜22的一端贴设于第一水平部221，第二音圈24朝向辅助振膜22的一端贴设于第一水平部221。
具体地，主振膜21的中央部211盖设在第一音圈23的上端，第一音圈23的下端贴在辅助振膜22的第一水平部221的上表面，第二音圈24的上端贴在辅助振膜22的下表面，以使音圈组驱动振膜组振动，即，第一音圈23和第二音圈24共同驱动主振膜21和辅助模组同时振动，结构设计合理。
本实施例中，第一折环部222的沿背离第一音圈23的方向凸出，第二折环部212沿背离或朝向第一音圈23的方向凸出，即，第一折环部222的弧形凸起侧朝上设置，第二折环部212的弧形凸起侧朝下设置或朝上设置。第一折环部222和第二折环部212可形成对称的支撑，在音圈组振动时可以提供对称的恢复力，降低了产品的失真，提高可靠性。
本实施例中，振动***20还包括定心支片25，定心支片25设置于第一音圈23和辅助振膜22之间，定心支片25包括基体251和设置于基体251上的导电电路(图未示)，导电电路的一端与第一音圈23及第二音圈24电连接，导电电路的另一端与外部电路电连接，具体地，导电电路的另一端可以与终端，比如手机电连接，使第一音圈23和第二音圈24通电。定心支片25的设置，起到定位作用，可确保第一音圈23和第二音圈24沿轴向做往复运动，抑制第一音圈23和第二音圈24发生偏振问题。另外，定心支片25设置于第 一音圈23和辅助振膜22之间，可在抑制偏振问题的同时，保证辅助振膜22的振动空间，满足辅助振膜22大振幅振动要求。
本实施例中，第一音圈23和第二音圈24通过导电电路串联连接，利于第一音圈23和第二音圈24同步上下运动，保证主振膜21和辅助振膜22振动的同步性。
具体地，本实施例的基体251包括支片水平部2511、支片固定部2513以及连接支片水平部2511和支片固定部2513的连接部2512，支片固定部2513固定在外壳10上，支片水平部2511固定在第一音圈23和辅助振膜22之间，以将定心支片25的两侧固定，定心支片25具有弹性，能随着音圈组和振膜组轴向往复运动而运动，结构设计合理，简单方便。
本实施例中，辅助振膜22的数量和定心支片25的数量均为两个，两个辅助振膜22和两个定心支片25一一对应布置。两个辅助振膜22左右对称布置，两个辅助振膜22同步振动，保持扬声器100发声的平衡性，两个定心支片25也左右对称布置，且两个定性支片与两个辅助振膜22一一对应布置，进一步抑制第一音圈23和第二音圈24的偏振问题。
具体地，如图4和图5所示，各定心支片25的导电电路包括两个焊盘，其中一个定心支片25的两个焊盘分别为第一焊盘252、第二焊盘253，另一个定心支片25的两个焊盘分别为第三焊盘254和第四焊盘255，其中，第一焊盘252和第二焊盘253导通，第三焊盘254和第四焊盘255不导通。为了实现第一音圈23和第二音圈24串联连接，第一音圈23和第二音圈24的电流一致，在一实施例中，使得第三焊盘254与第一音圈23的始线导通，第一焊盘252与第一音圈23的末线导通，第二焊盘253与第二音圈24的始线导通，第四焊盘255与第二音圈24的末线导通；在另一实施例中，使得第三焊盘254与第二音圈24的始线导通，第一焊盘252与与第二音圈24的末线导通，第二焊盘253与第一音圈23的始线导通，第四焊盘255与第一音圈23的末线导通；在又一实施例中，使得第三焊盘254与第一音圈23的始线导通，第二焊盘253与第一音圈23的末线导通，第一焊盘252与第二音圈24的始线导通，第四焊盘255与第一音圈23的末线导通；在其他实施例中，还可以采用其他连接方式，需保证第一音圈23和第二音圈24串联连接，第一音圈23和第二音圈24的电流一致即可。
本实施例的第一音圈23由第一音圈23线绕设而成；第二音圈24由第二音圈24线绕设而成，第一音圈23线的线径和第一音圈23线的线径不同，可实现第一音圈23和第二音圈24的高度、阻值以及重量的自由搭配，满足不同的使用要求。
如图1至图3所示，本实施例中，磁路***30包括与外壳10固定的盆架31、安装在盆架31上的中心磁铁32以及分布于中心磁铁32外侧的边磁铁33，中心磁铁32与变磁铁之间形成磁间隙，第一音圈23和第二音圈24均悬设于磁间隙内。磁路***30的磁间隙产生磁场，第一音圈23和第二音圈24在磁间隙内做往复切割磁力线运动，带动主振膜21和辅助振膜22振动，从而策动空气发声，完成电声之间的能量转换。为了修正中心磁铁32发出的磁力，本实施例磁路***30还包括设置在中心磁铁32上的中心华司34。
另外，由于辅助振膜22的第一折环部222具有足够的振动空间，不需在盆架31的上表面增加凹槽结构，即，盆架31上对应辅助振膜22的第一折环部222的位置不会被压薄，提升灵敏度，改善产品性能。
本实施例扬声器100的振动***20还包括补强部26，设置在第一音圈23的上端，调节扬声器100的声学性能。本实施例的扬声器100还包括前盖40，前盖40与外壳10配合形成保护框架，前盖40设置有供声音出射的出声孔401。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (10)

  1. 一种扬声器，包括外壳、收容于所述外壳内的振动***和磁路***，其特征在于，所述振动***包括振膜组和驱动所述振膜组振动的音圈组，所述振膜组包括主振膜和辅助振膜，所述音圈组包括第一音圈和第二音圈，所述第一音圈设置在所述主振膜和所述辅助振膜之间，所述第二音圈设置在所述辅助振膜背离所述主振膜的一侧。
  2. 如权利要求1所述的扬声器，其特征在于，所述辅助振膜包括由内向外依次设置的第一水平部、第一折环部和第一固定部，所述第一水平部固定在第一音圈和第二音圈之间，所述第一固定部固定在所述外壳上。
  3. 如权利要求2所述的扬声器，其特征在于，所述主振膜包括由内向外依次设置的中央部、第二折环部和第二固定部，所述第二固定部固定在所述外壳上，所述第一音圈朝向所述主振膜的一端贴设于所述中央部，所述第一音圈朝向所述辅助振膜的一端贴设于所述第一水平部，所述第二音圈朝向所述辅助振膜的一端贴设于所述第一水平部。
  4. 如权利要求3所述的扬声器，其特征在于，所述第一折环部沿背离所述第一音圈的方向凸出，所述第二折环部沿背离或朝向所述第一音圈的方向凸出。
  5. 如权利要求1所述的扬声器，其特征在于，所述振动***还包括定心支片，所述定心支片设置于所述第一音圈和所述辅助振膜之间，所述定心支片包括基体和设置于基体上的导电电路，所述导电电路的一端与所述第一音圈及所述第二音圈电连接，所述导电电路的另一端与外部电路电连接。
  6. 如权利要求5所述的扬声器，其特征在于，所述第一音圈和第二音圈通过所述导电电路串联连接。
  7. 如权利要求5所述的扬声器，其特征在于，所述基体包括支片水平部、支片固定部以及连接所述支片水平部和支片固定部的连接部，所述支片固定部固定在所述外壳上，所述支片水平部固定在所述第一音圈和所述辅助振膜之间。
  8. 如权利要求5所述的扬声器，其特征在于，所述辅助振膜的数量和所述定心支片的数量均为两个，两个所述辅助振膜和两个所述定心支片一一对应布置。
  9. 如权利要求1-8中任一项所述的扬声器，其特征在于，所述第一音圈由第一音圈线绕设而成；所述第二音圈由第二音圈线绕设而成，所述第一音圈线的线径和第一音圈线的线径不同。
  10. 如权利要求1-8中任一项所述的扬声器，其特征在于，所述磁路***包括与所述外壳固定的盆架、安装在盆架上的中心磁铁以及分布于中心磁铁外侧的边磁铁，所述中心磁铁与所述边磁铁之间形成磁间隙，所述第一音圈和所述第二音圈均悬设于所述磁间隙内。
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109769183B (zh) * 2019-03-08 2020-11-13 歌尔股份有限公司 扬声器
WO2021127926A1 (zh) * 2019-12-23 2021-07-01 瑞声声学科技(深圳)有限公司 扬声器
CN111641907B (zh) * 2020-06-24 2021-07-09 瑞声科技(新加坡)有限公司 发声器件
CN111935613B (zh) * 2020-10-13 2021-02-05 歌尔股份有限公司 扬声器
CN113473333B (zh) * 2021-06-28 2023-04-11 Oppo广东移动通信有限公司 电声装置及电子设备
CN114679674B (zh) * 2022-03-29 2024-06-18 维沃移动通信有限公司 扬声器及电子设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202979273U (zh) * 2012-11-29 2013-06-05 郁志曰 一种同轴双喇叭驱动单元及其耳机
CN204104128U (zh) * 2014-07-15 2015-01-14 富祐鸿科技股份有限公司 双振膜共用一磁回结构的喇叭
CN204119458U (zh) * 2014-07-14 2015-01-21 富祐鸿科技股份有限公司 双振膜共用一磁回结构的喇叭
EP2934021A1 (en) * 2014-04-15 2015-10-21 Bose Corporation Loudspeaker with compliantly coupled low-frequency and high-frequency sections
CN206413193U (zh) * 2017-02-15 2017-08-15 微鲸科技有限公司 双向发声扬声器及音箱设备
CN207039884U (zh) * 2017-06-07 2018-02-23 东莞市丰纶电子科技有限公司 双音圈双磁路分音喇叭
CN109769183A (zh) * 2019-03-08 2019-05-17 歌尔股份有限公司 扬声器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7873179B2 (en) * 2005-03-14 2011-01-18 Panasonic Corporation Speaker
JP2008193643A (ja) * 2007-02-08 2008-08-21 Matsushita Electric Ind Co Ltd スピーカ
CN101990147B (zh) * 2009-07-31 2013-08-28 清华大学 振动膜及应用该振动膜的扬声器
CN101990150A (zh) * 2009-08-05 2011-03-23 鸿富锦精密工业（深圳）有限公司 扬声器
CN201708916U (zh) * 2009-11-20 2011-01-12 天津中环真美声学技术有限公司 超薄式双驱动扬声器
CN205622865U (zh) * 2016-03-31 2016-10-05 歌尔股份有限公司 扬声器单体以及扬声器模组
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
CN206963073U (zh) * 2017-07-18 2018-02-02 歌尔科技有限公司 一种扬声器
CN207354585U (zh) * 2017-08-28 2018-05-11 常州美欧电子有限公司 电磁扬声器
CN207625792U (zh) * 2017-11-27 2018-07-17 瑞声科技(新加坡)有限公司 扬声器
CN207869371U (zh) * 2018-01-27 2018-09-14 瑞声科技(新加坡)有限公司 扬声器
CN208638655U (zh) * 2018-08-04 2019-03-22 瑞声科技(新加坡)有限公司 扬声器模组

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202979273U (zh) * 2012-11-29 2013-06-05 郁志曰 一种同轴双喇叭驱动单元及其耳机
EP2934021A1 (en) * 2014-04-15 2015-10-21 Bose Corporation Loudspeaker with compliantly coupled low-frequency and high-frequency sections
CN204119458U (zh) * 2014-07-14 2015-01-21 富祐鸿科技股份有限公司 双振膜共用一磁回结构的喇叭
CN204104128U (zh) * 2014-07-15 2015-01-14 富祐鸿科技股份有限公司 双振膜共用一磁回结构的喇叭
CN206413193U (zh) * 2017-02-15 2017-08-15 微鲸科技有限公司 双向发声扬声器及音箱设备
CN207039884U (zh) * 2017-06-07 2018-02-23 东莞市丰纶电子科技有限公司 双音圈双磁路分音喇叭
CN109769183A (zh) * 2019-03-08 2019-05-17 歌尔股份有限公司 扬声器

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