WO2020073490A1 - 一种扬声器 - Google Patents

一种扬声器 Download PDF

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Publication number
WO2020073490A1
WO2020073490A1 PCT/CN2018/122702 CN2018122702W WO2020073490A1 WO 2020073490 A1 WO2020073490 A1 WO 2020073490A1 CN 2018122702 W CN2018122702 W CN 2018122702W WO 2020073490 A1 WO2020073490 A1 WO 2020073490A1
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WO
WIPO (PCT)
Prior art keywords
voice coil
cantilever
lead
fixed
support
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PCT/CN2018/122702
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English (en)
French (fr)
Inventor
王建建
郭翔
刘迎新
张成飞
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歌尔股份有限公司
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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2020073490A1 publication Critical patent/WO2020073490A1/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 utility model relates to the technical field of sound-electricity conversion. More specifically, it relates to a speaker.
  • the speaker is the most basic sound-generating component.
  • Existing speakers usually include a housing and a vibration component and a magnetic circuit component provided in the housing.
  • the vibrating component includes a diaphragm and a voice coil fixed together. After the voice coil inputs current, it vibrates under the ampere force of the magnetic field formed by the magnetic circuit component to drive the vibrating diaphragm to sound.
  • the voice coil is electrically connected to the external power supply through the voice coil lead.
  • the current voice coil lead is usually suspended in the speaker to the pad electrically connected to the external power supply and soldered to the pad, but this solution is likely to cause vibration when the speaker is powered on The system generates polarization, and it is also prone to disconnection after reliability experiments.
  • the FPCB board can be installed in the vibration assembly, and the voice coil leads are directly soldered to the FPCB board, and electrically connected to the external power supply through the FPCB board, but this solution requires the installation of the FPCB board, which will greatly increase the cost.
  • An object of the present invention is to provide a loudspeaker that fixes at least part of the voice coil lead on an insulating support, the support provides a straight path for the voice coil lead and fixes at least part of the lead, to avoid polarization of the vibration component and the voice coil The problem that the lead wire is easily broken.
  • the utility model discloses a loudspeaker, which includes a housing, a vibration component and a magnetic circuit component connected and fixed to the housing, the vibration component includes a diaphragm, a support and a voice coil fixed to each other, the support includes an inner side A fixing portion, an outer fixing portion, and a cantilever portion connecting the inner fixing portion and the outer fixing portion, the support member is a structure formed of an insulating material; the voice coil includes a lead wire, and at least part of the lead wire is fixed to the cantilever portion To make the lead wire lead out from the cantilever part and connect to the external circuit through the electrical connection structure.
  • the voice coil is fixed on an inner fixing portion of the support facing the side of the housing, and the outer fixing portion of the support is fixed to the housing; wherein,
  • the voice coil includes two voice coil leads, and the voice coil lead includes a lead wire outlet end leading from the voice coil, a lead wire free end, and a lead wire connecting portion connecting the lead wire outlet end and the lead wire free end;
  • the electrical connection structure includes two pads injection-molded on the housing for conducting with the voice coil lead, wherein,
  • the free ends of the two voice coil leads are respectively soldered and fixed on the two pads.
  • the support is rectangular, and the cantilever portion includes four cantilevers located on four sides of the rectangle; wherein,
  • each cantilever is connected to the four corners of the inner fixing portion in one-to-one correspondence, and the other end of each cantilever is connected to the outer fixing portion on the corresponding side.
  • the two voice coil leads are completely attached and fixed to the cantilever portions on two opposite sides of the rectangle, and go from the cantilever portion to the pad.
  • the two voice coil lead portions are attached and fixed to the cantilever portions on the two opposite sides of the rectangle, and go to the pad.
  • an arc-shaped portion is formed at the outlet end of the voice coil lead.
  • the lead connection part is completely fit and fixed on the two opposite sides of the rectangular cantilever part, and at least part of the arc part is suspended.
  • the voice coil lead is fixed on the cantilever part by applying glue.
  • the support member is a centering support piece, which is a single-layer structure or a multi-layer composite structure formed by a polymer.
  • the high molecular polymer is any one or more of polyimide, polyetherimide, polyetheretherketone or polyphenylene sulfide.
  • the voice coil lead is fixed on an insulating support, the voice coil lead is routed from the support to the electrical connection structure, and electrically connected to the external circuit through the electrical connection structure.
  • the insulated support of the utility model provides positioning and support for the voice coil lead, so that the voice coil lead can transmit acoustic current to the voice coil, and during the vibration of the voice coil, the voice coil lead vibrates with the support to prevent The pulling of the voice coil lead causes the polarization of the vibration system, and also prevents the voice coil lead from interrupting the line during repeated vibrations, improving the reliability of the speaker.
  • FIG. 1 shows an exploded schematic view of a specific embodiment of the speaker of the present invention.
  • FIG. 2 shows a top view of the voice coil lead arrangement in a specific embodiment of the speaker of the present invention.
  • FIG. 3 shows a bottom view of the arrangement of voice coil leads in a specific embodiment of the speaker of the present invention.
  • FIG. 4 shows a schematic diagram of the arrangement of voice coil leads in another specific embodiment of the speaker of the present invention.
  • a speaker As shown in FIG. 1 to FIG. 3 together, according to one aspect of the present invention, a speaker is disclosed.
  • the speaker includes a housing 1 and a vibration component and a magnetic circuit component provided in the housing 1.
  • the vibration component includes The diaphragm 2, the support 5, and the voice coil 3 are fixed to each other.
  • the support 5 includes an inner fixing portion 51, an outer fixing portion 52 and a cantilever portion 53 connecting the inner fixing portion 51 and the outer fixing portion 52.
  • the supporting member 5 is a structure formed of an insulating material.
  • the voice coil 3 includes a lead wire 4. At least a part of the lead wire 4 is fixed on the cantilever portion 53 so that the lead wire 4 is separated from the cantilever portion 53. Lead out and conduct with external circuit through electrical connection structure.
  • the voice coil lead 4 is fixed on the support 5, and the voice coil lead 4 runs in line from the support 5 to be electrically connected to an external power source.
  • the voice coil lead 4 is fixed on the supporting member 5, and the voice coil 3 and the diaphragm 2 vibrate under the support of the supporting member 5 to prevent the pulling of the voice coil lead 4 to cause polarization of the vibrating component and also prevent the voice coil lead 4 from being in the vibrating component
  • the repeated vibration process interrupts the line and improves the reliability of the speaker.
  • the support 5 is formed of an insulating material, which can save costs.
  • the support 5 may be fixed below the diaphragm 2, and the voice coil 3 is further fixed on the support 5.
  • the inner fixing portion 51 of the support 5 may be fixed with the voice coil 3
  • the voice coil 3 may be fixed on the inner fixing portion 51 of the support 5 on the side facing the housing 1, and the outer fixing portion 52 It can be fixed with the housing 1 and the lateral movement of the diaphragm 2 can be reduced by the positioning effect of the housing 1.
  • the voice coil 3 drives the diaphragm 2 to vibrate
  • the inner fixing portion 51 of the support 5 vibrates with the diaphragm 2 and the voice coil 3
  • the outer fixing portion 52 is fixed to the housing 1
  • the cantilever portion 53 is connected to the inner fixing portion 51 and the outer fixing portion 52 maintain the connection between the inner fixing portion 51 and the outer fixing portion 52 during the vibration of the support 5 with the voice coil 3.
  • the voice coil 3 includes two voice coil leads 4, and the two voice coil leads 4 may be respectively fixed on the cantilever portion 53, and pass the cantilever portion 53 in line.
  • Each voice coil lead 4 may include a lead outlet end leading from the voice coil 3, a free end of the lead, and a lead connection portion connecting the lead outlet end and the free end of the lead.
  • the electrical connection structure may include two pads 6 injection-molded on the housing 1 for conducting with the voice coil lead 4, and the free ends of the two voice coil leads 4 may be welded and fixed to two On each of the pads 6, two pads 6 can be further connected to an external circuit, and two voice coil leads 4 can realize electrical connection with an external circuit through the pad 6.
  • the support member 5 may be provided in a rectangular shape, and the cantilever portion 53 of the support member 5 includes four cantilever arms located on four sides of the rectangle.
  • one end of each cantilever can be connected to the four corners of the inner fixing portion 51 in one-to-one correspondence, and the other end of each cantilever can be connected to the outer fixing portion 52 on the corresponding side, four
  • the cantilevers respectively apply forces to the four corners of the voice coil 3 to prevent the polarization of the vibration system from causing the acoustic performance of the speaker to decrease.
  • the support 5 is a centering piece.
  • the supporting member 5 may be a single-layer structure or a multi-layer composite structure formed of an insulating material, wherein the insulating material is preferably a polymer, and the polymer may be polyimide (PI) or polyether One or more of imide (PEI), polyether ether ketone (PEEK) or polyphenylene sulfide (PPS) and other materials. In other embodiments, other insulating materials may also be used to form the support 5, this The utility model does not limit this.
  • the voice coil lead 4 may be fixed on the support 5 by fixing means such as glue.
  • the two voice coil leads 4 can be completely attached and fixed to the cantilever portions 53 on two opposite sides of the rectangular support 5, and can be routed from the cantilever portion 53 to the electrically connected pad 6 Office.
  • the lead-out end of the voice coil lead 4 can be provided in the connection area of the cantilever portion 53 and the inner fixing portion 51.
  • the supporting member 5 includes two opposite first sides and two opposite second sides.
  • the cantilever portion 53 includes four cantilevers respectively provided on two first sides and two second sides, wherein two voice coil leads 4 may be provided on two first sides or two second sides, respectively On the two opposite cantilevers on the side, the cantilever extends from one end of the corresponding side of the rectangle to the other end of the corresponding side, so that the voice coil lead 4 can be aligned on the cantilever of the support 5.
  • the shape of the support member 5 may be set according to the positions of the lead outlet end and the free end of the voice coil lead 4, or the lead position of the voice coil lead 4 may be set by the shape of the support member 5, so that the voice coil lead 4 The straight path matches the cantilever portion 53 of the support 5. That is, the inner connecting portion where the cantilever is connected to the inner fixing portion 51 is located at the lead out of the voice coil lead 4 from the voice coil 3, and the outer connecting portion where the cantilever is connected to the outer fixing portion 52 is located at the pad 6 to facilitate the voice coil The lead 4 and the pad 6 are soldered.
  • the two voice coil leads 4 can also be arranged on the cantilever on the other side of other rectangles according to the position of the pad 6 welded to the voice coil lead 4 in the housing 1.
  • the arrangement method of the lead 4 is exemplified, but not limited thereto.
  • the two voice coil leads 4 are partially fixed on the cantilever portions 53 on the two opposite sides of the rectangle, and go to the pad 6.
  • the outlet end of the voice coil lead 4 may be formed with an arc-shaped portion 41, as shown in FIG. 4.
  • the arc-shaped portion 41 can reduce the stress of the voice coil lead 4. More preferably, at least part of the arc-shaped portion 41 is suspended, that is, at least part of the arc-shaped portion 41 is located outside the edge of the cantilever portion 53 to increase the radius of the arc-shaped portion 41, further reduce stress concentration, and prevent sound
  • the coil lead 4 was interrupted during the reliability experiment.
  • the lead connection portion connected to the outlet end of the voice coil lead 4 the lead connection portion is preferably completely fit and fixed on the cantilever portion 53 of the support 5.
  • the diaphragm 2 may include a diaphragm center portion in the center of the diaphragm 2 and a diaphragm edge portion 22 connected to an edge of the diaphragm center portion, and together form a diaphragm body portion.
  • the diaphragm center part generally includes a body center part 21 and a reinforcing center part 23 coupled to the surface of the body center part 21.
  • the center of the central portion 21 of the body can be hollowed out.
  • the hollow edge of the central portion 21 of the main body needs to be located inside the edge of the reinforcing central portion 23 fixed to it, so as to ensure that the hollow area is smaller than the area of the reinforcing central portion 23 attached thereto, so as to ensure the airtightness of the diaphragm 2.
  • the magnetic circuit system is formed with a magnetic gap, and the end of the voice coil 3 away from the diaphragm 2 is suspended in the magnetic gap.
  • the magnetic circuit system may include a magnetic guide yoke 73, a central magnet 71 fixed at the center of the magnetic guide yoke 73, and a magnetic guide plate located on the upper surface of the central magnet 71.
  • the magnetic circuit system uses a central magnet 71 and a magnetic guide plate to form a central magnetic circuit at the center of the magnetic yoke 73, and a plurality of magnetic edges at the edge of the magnetic yoke 73
  • the side magnet 72 forms a side magnetic circuit, so that a magnetic gap accommodating the voice coil 3 is formed between the center magnetic circuit and the side magnetic circuit.
  • the magnetic yoke 73 is generally rectangular, and the side magnet 72 may be provided on the four sides of the magnetic yoke 73, or may be provided only on the two long sides or short sides of the magnetic yoke 73, and the magnetic yoke 73 without the side magnet 72
  • the edge may extend vertically with respect to the magnetic yoke 73 to form a side wall, and the side magnetic circuit and the side wall together form a magnetic gap with the central magnetic circuit.
  • the magnetic yoke 73 may further include a flat bottom wall and a side wall extending along the edge of the bottom wall toward the vibration system.
  • a magnetic gap for accommodating the lower end of the voice coil 3 is formed between the side wall of the magnetic yoke 73 and the magnet and the magnetic conductive plate.

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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

本实用新型公开了一种扬声器，包括外壳以及与所述外壳连接固定的振动组件和磁路组件，所述振动组件包括相互固定在一起的振膜、支撑件和音圈，所述支撑件包括内侧固定部、外侧固定部以及连接内侧固定部和外侧固定部的悬臂部，所述支撑件为由绝缘材料成型的结构；所述音圈包括引线，所述引线的至少部分固定在所述悬臂部上，以使所述引线自所述悬臂部引出并通过电连接结构与外部电路导通，本实用新型可避免振膜偏振及音圈引线易断线的问题。

Description

一种扬声器 技术领域
本实用新型涉及声电转换技术领域。更具体地，涉及一种扬声器。
背景技术
扬声器是最基本的发声部件。现有的扬声器通常包括外壳及设于外壳中的振动组件和磁路组件。其中，振动组件包括固定在一起的振膜和音圈，音圈输入电流后，在磁路组件形成的磁场的安培力作用下振动进而带动振膜振动发声。音圈通过音圈引线与外部电源电连接，目前的音圈引线通常在扬声器中悬空顺线至与外部电源电连接的焊盘处与焊盘焊接固定，但是这种方案易导致扬声器通电时振动系统产生偏振，在可靠性实验后也容易发生断线。其他方案中，可在振动组件中设置FPCB板，音圈引线直接与FPCB板焊接，通过FPCB板与外部电源电连接，但是该方案需要设置FPCB板，会导致成本大大增加。
实用新型内容
本实用新型的一个目的在于提供一种扬声器，将音圈引线的至少部分固定在绝缘的支撑件上，支撑件为音圈引线提供顺线路径并固定至少部分引线，避免振动组件偏振及音圈引线易断线的问题。
为达到上述目的，本实用新型采用下述技术方案：
本实用新型公开了一种扬声器，包括外壳以及与所述外壳连接固定的振动组件和磁路组件，所述振动组件包括相互固定在一起的振膜、支撑件和音圈，所述支撑件包括内侧固定部、外侧固定部以及连接内侧固定部和外侧固定部的悬臂部，所述支撑件为由绝缘材料成型的结构；所述音圈包括引线，所述引线的至少部分固定在所述悬臂部上，以使所述引线自所述悬臂部引出并通过电连接结构与外部电路导通。
优选地，所述音圈固定在所述支撑件的面向所述外壳一侧的内侧固定部上，所述支撑件外侧固定部与所述外壳固定；其中，
所述音圈包括两条音圈引线，所述音圈引线包括有自所述音圈引出的引线出线端、引线自由端以及连接所述引线出线端和引线自由端的引线连接部；
所述电连接结构包括注塑在所述外壳上的用于与所述音圈引线导通的两个焊盘，其中，
两条所述音圈引线自由端分别焊接固定在两个所述焊盘上。
优选地，所述支撑件为矩形，所述悬臂部包括位于所述矩形四个边侧的四个悬臂；其中，
每个所述悬臂的一端与所述内侧固定部的四个角部一一对应连接，每个所述悬臂的另一端与对应边侧的所述外侧固定部连接。
优选地，两条所述音圈引线完全贴合固定于所述矩形相对的两个边侧的悬臂部上，并自所述悬臂部顺至所述焊盘处。
优选地，两条所述音圈引线部分贴合固定于所述矩形相对的两个边侧的悬臂部上，并顺至所述焊盘处。
优选地，所述音圈引线出线端形成有弧形部。
优选地，所述引线连接部完全贴合固定于所述矩形相对的两个边侧的悬臂部上，所述弧形部的至少部分悬空。
优选地，所述音圈引线通过涂胶固定在所述悬臂部上。
优选地，所述支撑件为定心支片，为由高分子聚合物形成的单层结构或多层复合结构。
优选地，所述高分子聚合物为聚酰亚胺、聚醚酰亚胺、聚醚醚酮或聚苯硫醚中的任意一种或多种。
本实用新型的有益效果如下：
本实用新型的扬声器将音圈引线固定在绝缘的支撑件上，从支撑件上将音圈引线顺至电连接结构处，通过电连接结构与外部电路电连接。本实用新型的绝缘的支撑件为音圈引线提供定位和支撑作用，使音圈引线可以向音圈传输声电流，且在音圈振动过程中，音圈引线随着支撑件一起振动，可防止音圈引线的拉扯引起振动系统偏振，也防止音圈引线在反复振动过程中断线，提高扬声器的可靠性。
附图说明
下面结合附图对本实用新型的具体实施方式作进一步详细的说明。
图1示出本实用新型扬声器一个具体实施例的分解示意图。
图2示出本实用新型扬声器一个具体实施例中音圈引线设置的俯视图。
图3示出本实用新型扬声器一个具体实施例中音圈引线设置的仰视图。
图4示出本实用新型扬声器另一个具体实施例中音圈引线设置的示意图。
附图标记：
1、外壳，2、振膜，3、音圈，4、音圈引线，41、弧形部，21、本体中心部，22、振膜边缘部，23、补强中心部，5、支撑件，51、内侧固定部，52、外侧固定部，53、悬臂部，6、焊盘，71、中心磁铁，72、边磁铁，73、导磁轭，74、导磁板。
具体实施方式
为了更清楚地说明本实用新型，下面结合优选实施例和附图对本实用新型做进一步的说明。附图中相似的部件以相同的附图标记进行表示。本领域技术人员应当理解，下面所具体描述的内容是说明性的而非限制性的，不应以此限制本实用新型的保护范围。
如图1-图3共同所示，根据本实用新型的一个方面，公开了一种扬声器，该扬声器包括外壳1以及设于所述外壳1中的振动组件和磁路组件，所述振动组件包括相互固定在一起的振膜2、支撑件5和音圈3。其中，支撑件5包括内侧固定部51、外侧固定部52以及连接内侧固定部51和外侧固定部52的悬臂部53。所述支撑件5为由绝缘材料成型的结构，所述音圈3包括引线4，所述引线4的至少部分固定在所述悬臂部53上，以使所述引线4自所述悬臂部53引出并通过电连接结构与外部电路导通。本实用新型的扬声器中，音圈引线4的至少部分固定在支撑件5上，音圈引线4从支撑件5上顺线以与外部电源电连接。音圈引线4固定在支撑件5上，在支撑件5的支撑下随着音圈3和振膜2振动，防止音圈引线4的拉扯引起振动组件偏振，也防止音圈引线4在振动组件反复振动过程中断线，提高扬声器的可靠性，支撑件5采用绝缘材料形成，可节省成本。
在优选地实施方式中，支撑件5可固定在振膜2的下方，音圈3进一步固定在所述支撑件5上。优选地，支撑件5的内侧固定部51可与音圈3固定，所述音圈3可固定在所述支撑件5的面向所述外壳1一侧的内侧固定部51上，外侧固定部52可与外壳1固定，通过外壳1的定位作用降低振膜2的横向移动。在音圈3带动振膜2振动时，支撑件5的内侧固定部51随着振膜2和音圈3振动，外侧固定部52由于固定在外壳1上而不动，悬臂部53连接内侧固定部51和外侧固定部52，在支撑件5随着音圈3振动过程中保持内侧固定部51与外侧固定部52的连接。
在优选地实施方式中，所述音圈3包括两条音圈引线4，两条音圈引线4可分别固定在所述悬臂部53上，通过悬臂部53顺线。每条音圈引线4可包括自所述音圈3引出的引线出线端、引线自由端以及连接所述引线出线端和引线自由端的引线连接部。所述电连接结构可包括注塑在所述外壳1上的用于与所述音圈引线4导通的两个焊盘6，两条所述音圈引线4的自由端可分别焊接固定在两个所述焊盘6上，两个焊盘6进一步可与外部电路导通，两条音圈引线4通过焊盘6可实现与外部电路的电连接。
在优选地实施方式中，所述支撑件5可设置为矩形，支撑件5的悬臂部53包括位于所述矩形四个边侧的四个悬臂。其中，优选地，每个悬臂的一端可与所述内侧固定部51的四个角部一一对应连接，每个悬臂的另一端可与对应边侧的所述外侧固定部52连接，四个悬臂分别向音圈3的四个角部施加力的作用，防止振动系统发生偏振导致扬声器的声学性能降低。优选地，所述支撑件5为定心支片。所述支撑件5可为由绝缘材料形成的单层结构或多层复合结构，其中，绝缘材料优选地为高分子聚合物，该高分子聚合物可选用聚酰亚胺(PI)、聚醚酰亚胺(PEI)、聚醚醚酮(PEEK)或聚苯硫醚(PPS)等材料中的一种或多种，在其他实施方式中，也可选用其他绝缘材料形成支撑件5，本实用新型对此并不作限定。优选地，所述音圈引线4可通过涂胶等固定方式固定在所述支撑件5上。
在一个优选地实施方式中，两条音圈引线4可完全贴合固定于矩形支撑件5相对的两个边侧的悬臂部53上，并自悬臂部53顺线至电连接的焊盘6处。可设置音圈引线4的引线出线端位于悬臂部53与内侧固定部51的连接区域。
具体的，所述支撑件5包括两个相对的第一边侧和两个相对的第二边侧。所述悬臂部53包括分别设于两个第一边侧和两个第二边侧的四个悬臂，其中，两条音圈引线4可分别设置在两个第一边侧或两个第二边侧的两个相对的悬臂上，悬臂从矩形的对应边侧的一端延伸至对应边侧的另一端，以使音圈引线4可在支撑件5的悬臂上顺线。在其他实施方式中，可根据音圈引线4的引线出线端和自由端的位置设置支撑件5的形状，或者通过支撑件5的形状设置音圈引线4的引出位置，以使音圈引线4的顺线路径与支撑件5的悬臂部53相匹配。即可使悬臂与内侧固定部51连接的内侧连接部位于音圈引线4自音圈3引出的引出处，使悬臂与外侧固定部52连接的外侧连接部位于焊盘6处，以便于音圈引线4与焊盘6焊接。在其他实施方式中，根据外壳1中与音圈 引线4焊接的焊盘6的位置也可将两条音圈引线4设置在其他矩形的其他边侧的悬臂上，本实用新型仅对音圈引线4的设置方式作示例性说明，而并非对此作出限定。
在另一个优选地实施方式中，两条所述音圈引线4部分贴合固定于所述矩形相对的两个边侧的悬臂部53上，并顺至所述焊盘6处。优选地，所述音圈引线4出线端可形成有弧形部41，如图4所示。该弧形部41可降低音圈引线4的应力。更优选地，所述弧形部41的至少部分悬空设置，即弧形部41的至少部分位于悬臂部53的边缘外侧，以增大弧形部41的弧度半径，进一步降低应力集中，防止音圈引线4在可靠性实验中断线。对于与音圈引线4出线端连接的引线连接部，该引线连接部优选地完全贴合固定于支撑件5的悬臂部53上。
在可选地实施方式中，振膜2可包括振膜2中央的振膜中心部以及与所述振膜中心部边缘连接的振膜边缘部22，共同形成振膜本体部。为了增加振膜2的振动特性，通常振膜中心部包括本体中心部21和结合在所述本体中心部21表面的补强中心部23。为了减轻振膜2重量，进一步提高振膜2振动性能，可将本体中心部21的中央镂空。其中，本体中心部21的镂空边缘需位于与其结合固定的补强中心部23边缘的内侧，保证镂空面积小于与其贴合的补强中心部23的面积，以保证振膜2的气密性。
在可选地实施方式中，磁路系统形成有磁间隙，音圈3远离振膜2的一端悬置在磁间隙中。所述磁路系统可包括导磁轭73、固定在导磁轭73中心的中心磁铁71以及位于中心磁铁71上表面的导磁板。本实施例中，为了增大磁路系统形成的磁场强度，磁路系统采用在导磁轭73的中心设置中心磁铁71和导磁板形成中心磁路，在导磁轭73的边缘设置多个边磁铁72，形成边磁路，从而在中心磁路和边磁路间形成容纳音圈3的磁间隙。导磁轭73通常为矩形，边磁铁72可设置在导磁轭73的四边，也可只设置在导磁轭73相对的两个长边或短边，未设置边磁铁72的导磁轭73边缘可相对于导磁轭73垂直延伸形成侧壁，边磁路和侧壁共同与中心磁路形成磁间隙。在其他实施方式中，所述导磁轭73还可包括平板状的底壁和沿底壁边缘朝向振动系统延伸的侧壁。导磁轭73的侧壁与磁铁以及导磁板间形成容纳音圈3下端的磁间隙。
显然，本实用新型的上述实施例仅仅是为清楚地说明本实用新型所作的举例，而并非是对本实用新型的实施方式的限定，对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动，这里无 法对所有的实施方式予以穷举，凡是属于本实用新型的技术方案所引伸出的显而易见的变化或变动仍处于本实用新型的保护范围之列。

Claims (10)

  1. 一种扬声器，包括外壳以及与所述外壳连接固定的振动组件和磁路组件，所述振动组件包括相互固定在一起的振膜、支撑件和音圈，所述支撑件包括内侧固定部、外侧固定部以及连接内侧固定部和外侧固定部的悬臂部，其特征在于，所述支撑件为由绝缘材料成型的结构；所述音圈包括引线，所述引线的至少部分固定在所述悬臂部上，以使所述引线自所述悬臂部引出并通过电连接结构与外部电路导通。
  2. 根据权利要求1所述的扬声器，其特征在于，所述音圈固定在所述支撑件的面向所述外壳一侧的内侧固定部上，所述支撑件外侧固定部与所述外壳固定；其中，
    所述音圈包括两条音圈引线，所述音圈引线包括有自所述音圈引出的引线出线端、引线自由端以及连接所述引线出线端和引线自由端的引线连接部；
    所述电连接结构包括注塑在所述外壳上的用于与所述音圈引线导通的两个焊盘，其中，
    两条所述音圈引线自由端分别焊接固定在两个所述焊盘上。
  3. 根据权利要求2所述的扬声器，其特征在于，所述支撑件为矩形，所述悬臂部包括位于所述矩形四个边侧的四个悬臂；其中，
    每个所述悬臂的一端与所述内侧固定部的四个角部一一对应连接，每个所述悬臂的另一端与对应边侧的所述外侧固定部连接。
  4. 根据权利要求3所述的扬声器，其特征在于，两条所述音圈引线完全贴合固定于所述矩形相对的两个边侧的悬臂部上，并自所述悬臂部顺至所述焊盘处。
  5. 根据权利要求3所述的扬声器，其特征在于，两条所述音圈引线部分贴合固定于所述矩形相对的两个边侧的悬臂部上，并顺至所述焊盘处。
  6. 根据权利要求5所述的扬声器，其特征在于，所述音圈引线出线端形成有弧形部。
  7. 根据权利要求6所述的扬声器，其特征在于，所述引线连接部完全贴合固定于所述矩形相对的两个边侧的悬臂部上，所述弧形部的至少部分悬空。
  8. 根据权利要求4或7所述的扬声器，其特征在于，所述音圈引线通过涂胶固定在所述悬臂部上。
  9. 根据权利要求1所述的扬声器，其特征在于，所述支撑件为定心支片， 为由高分子聚合物形成的单层结构或多层复合结构。
  10. 根据权利要求9所述的扬声器，其特征在于，所述高分子聚合物为聚酰亚胺、聚醚酰亚胺、聚醚醚酮或聚苯硫醚中的任意一种或多种。
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