WO2018145385A1 - 发声装置中音圈的连接结构及发声装置 - Google Patents

发声装置中音圈的连接结构及发声装置 Download PDF

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Publication number
WO2018145385A1
WO2018145385A1 PCT/CN2017/089351 CN2017089351W WO2018145385A1 WO 2018145385 A1 WO2018145385 A1 WO 2018145385A1 CN 2017089351 W CN2017089351 W CN 2017089351W WO 2018145385 A1 WO2018145385 A1 WO 2018145385A1
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Prior art keywords
voice coil
fpcb board
connection structure
support portion
fpcb
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English (en)
French (fr)
Inventor
王琪忠
吴德跃
刘光磊
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Goertek Inc
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Goertek Inc
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    • 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
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • 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

Definitions

  • the present invention relates to the field of electroacoustic conversion, and more particularly to a vibration system in a sounding device, and more particularly to a voice coil structure in a vibration system; and to a sounding device.
  • a speaker is an important acoustic component in an electronic device that is a transducer that converts an electrical signal into an acoustic signal.
  • An existing speaker module includes a housing, and a magnetic circuit system disposed within the housing and a vibration system including a diaphragm and a voice coil disposed under the diaphragm. The voice coil drives the diaphragm to make sounds under the vibration of the magnetic circuit system.
  • the voice coil in the vibration system is wound by an enameled wire.
  • the two free ends of the enameled wire are generally disposed at both ends of the voice coil.
  • the two ends of the enameled wire extend from the voice coil and are welded.
  • the pads of the housing are connected to an external circuit.
  • An object of the present invention is to provide a connection structure of a voice coil in a sound emitting device.
  • a connection structure of a voice coil in a sound emitting device comprising an FPCB board, a voice coil having two leads, the FPCB board being connected to a position adjacent to the voice coil lead on a lower end surface of the voice coil, and The two leads of the voice coil are connected to the circuit of the FPCB board; further comprising a connecting line, one end of the connecting line is connected to the pad of the FPCB board; and the supporting part supporting the partial connecting line on the FPCB board .
  • the support portion is disposed adjacent to the pad.
  • the support portion is a PI material.
  • one end of the support portion is bonded to the FPCB board, and the connection line is bonded to the support The other end of the support.
  • the support portion has a thickness of 0.1 mm to 0.2 mm.
  • the FPCB board is provided with a ring shape that matches the shape of the lower end surface of the voice coil.
  • the FPCB board is provided with two wires respectively bonded to the two lead positions on the lower end surface of the voice coil.
  • the voice coil has a rectangular shape, and two lead wires of the voice coil are located on a short side of the voice coil.
  • the connecting line is a silk thread.
  • a sounding device comprising the above-described connection structure.
  • the connecting structure of the present invention can connect the lead wires of the voice coil to the external circuit through the FPCB board and the connecting line by providing the FPCB board at the lower end of the voice coil, thereby avoiding the limitation of the material of the voice coil lead.
  • the vibration fracture problem ensures the stability of the connection structure.
  • the support line is kept at a certain distance from the FPCB board through the support portion, so that the connection between the connection line and the FPCB board during vibration can be avoided.
  • Figure 1 is a schematic illustration of the joint structure of the present invention.
  • Figure 2 is a cross-sectional view showing the position of the support portion of Figure 1.
  • the present invention provides a connection structure for a voice coil in a sounding device comprising an FPCB board 2, a voice coil 1 having two leads.
  • the voice coil 1 can be wound by layers of enameled wires, and the whole can be square or rectangular.
  • the two leads of the voice coil 1 are respectively located at opposite ends of the voice coil.
  • the voice coil 1 selects a rectangular structure, its two leads may be respectively located on the two short sides or the long sides of the voice coil.
  • the structure of such a voice coil is well known to those skilled in the art and will not be specifically described herein.
  • the FPCB board 2 is connected to a position on the lower end surface of the voice coil 1 adjacent to the voice coil lead, and the FPCB board 2 can be attached to the lower end surface of the voice coil 1 by bonding.
  • the FPCB board 2 is provided with a ring shape that matches the shape of the lower end surface of the voice coil 1.
  • the cross section of the voice coil 1 is rectangular, and the FPCB board 2 has a rectangular shape matched thereto.
  • the FPCB board 2 is bonded to the annular lower end surface of the voice coil 1.
  • the FPCB board 2 may be provided with two, and the two FPCB boards 2 are respectively bonded to the two lead positions of the lower end surface of the voice coil 1 so that one lead can correspond to one. FPCB board 2.
  • connection structure of the present invention further includes a connecting wire 5, one end of which can be connected to the pad 4 of the FPCB board 2, for example, by soldering.
  • the other end of the connecting wire 5 of the present invention is used for connection with an external circuit, for example, it may be directly connected to an external circuit or may be connected to a pad for the sounding device to be connected to an external terminal.
  • the connecting wire 5 may be a wire or the like which is well known to those skilled in the art.
  • connection structure of the present invention further includes a support portion 3 for supporting a part of the connection wires 5 on the FPCB board 2, with reference to Figs.
  • the support portion 3 of the present invention can be bonded, for example, to the FPCB board 2, and a corresponding portion of the connection line 5 can be bonded to the support portion 3.
  • the support portion 3 can maintain a certain distance between the FPCB board 2 and the connecting line 5, and when the FPCB board 2 vibrates with the voice coil, the rubbing between the connecting line 5 and the FPCB board 2 can be avoided.
  • connection structure of the present invention by providing an FPCB board at the lower end of the voice coil, the lead wires of the voice coil can be connected to the external circuit through the FPCB board and the connecting line 5, thereby avoiding the limitation of the material of the voice coil lead.
  • the vibration fracture problem ensures the stability of the connection structure.
  • the support line is kept at a certain distance from the FPCB board through the support portion, so that the connection between the connection line and the FPCB board during vibration can be avoided.
  • the support portion 3 is disposed adjacent to the pad 4, that is, the support portion 3 is adjacent to the position where the connection line 5 is soldered to the FPCB board 2.
  • the connection line 5 starts from the position of the pad 4, is supported by the support portion 3, and is drawn outward by bending deformation, thereby avoiding the contact of the connection line 5 with the FPCB board 2.
  • the support portion 3 of the present invention may be made of a PI material. Of course, other soft plastic materials and the like may be used by those skilled in the art.
  • the distance between the connecting wire 5 and the FPCB board 2 depends on the thickness of the support portion 3. In a specific embodiment of the invention, the thickness of the support portion 3 may be between 0.1 mm and 0.2 mm.
  • the present invention also provides a sounding device including a vibration system including the above-described connection structure and a diaphragm, and a magnetic circuit system including a magnetic gap composed of a magnet.
  • the lead wires of the voice coil are connected to the external circuit in the above manner, and the structural stability of the sounding device can be greatly improved.

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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

本发明涉及一种发声装置中音圈的连接结构及发声装置，包括FPCB板、具有两根引线的音圈，所述FPCB板连接在音圈下端面上位于音圈引线的位置，且所述音圈的两根引线连接到FPCB板的电路中；还包括连接线，所述连接线的一端连接在FPCB板的焊盘上；还包括将部分连接线支撑在FPCB板上的支撑部。本发明的连接结构，通过在音圈的下端设置FPCB板，使得可以通过FPCB板以及连接线将音圈的引线与外部电路连接在一起，这就避免了因音圈引线材质的限制而导致的振动断裂问题，保证了该连接结构的稳定性。另外，通过支撑部使连接线与FPCB板保持一定的距离，可以避免振动时连接线与FPCB板的擦碰。

Description

发声装置中音圈的连接结构及发声装置 技术领域
本发明涉及电声转换领域，更具体地，本发明涉及一种发声装置中的振动系统，尤其涉及振动系统中的音圈结构；本发明还涉及一种发声装置。
背景技术
扬声器是电子设备中的重要声学部件，其为一种把电信号转变为声信号的换能器件。现有的扬声器模组，包括外壳，以及设置在外壳内的磁路系统以及振动系统，所述振动系统包括振膜以及设置在振膜下方的音圈。音圈在磁路系统的振动作用下驱动振膜进行发声。
振动系统中的音圈由漆包线缠绕而成，漆包线的两个自由端一般设置在音圈的两端，在与外部电路进行连接的时候，该漆包线的两端从音圈延伸出去，并焊接在壳体的焊盘上，以与外部电路连接在一起。上述结构的音圈在振动的时候，漆包线的两端也会随着音圈进行振动，但是由于漆包线的材质特性，其可能会发生断裂，造成发声装置的失效。
发明内容
本发明的一个目的是提供了一种发声装置中音圈的连接结构。
根据本发明的一个方面，提供一种发声装置中音圈的连接结构，包括FPCB板、具有两根引线的音圈，所述FPCB板连接在音圈下端面上邻近音圈引线的位置，且所述音圈的两根引线连接到FPCB板的电路中；还包括连接线，所述连接线的一端连接在FPCB板的焊盘上；还包括将部分连接线支撑在FPCB板上的支撑部。
可选地，所述支撑部设置在邻近焊盘的位置。
可选地，所述支撑部为PI材料。
可选地，所述支撑部的一端粘接在FPCB板上，所述连接线粘接在支 撑部的另一端。
可选地，所述支撑部的厚度为0.1mm-0.2mm。
可选地，所述FPCB板设置有一个，其呈与音圈下端面形状匹配的环形。
可选地，所述FPCB板设置有两个，分别粘接在音圈下端面的两个引线位置。
可选地，所述音圈呈长方形，所述音圈的两个引线位于音圈的短边上。
可选地，所述连接线为锦丝线。
根据本发明的另一方面，还提供了一种发声装置，包括上述的连接结构。
本发明的连接结构，通过在音圈的下端设置FPCB板，使得可以通过FPCB板以及连接线将音圈的引线与外部电路连接在一起，这就避免了因音圈引线材质的限制而导致的振动断裂问题，保证了该连接结构的稳定性。另外，通过支撑部使连接线与FPCB板保持一定的距离，可以避免振动时连接线与FPCB板的擦碰。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。
图1是本发明连接结构的示意图。
图2是图1中支撑部位置的剖面图。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作 为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
参考图1、图2，本发明提供了一种发声装置中音圈的连接结构，其包括FPCB板2、具有两根引线的音圈1。音圈1可以由漆包线逐层缠绕而成，其整体可以呈正方形或者长方形等。音圈1的两根引线分别位于音圈相对的两端。例如当音圈1选择长方形结构时，其两根引线可以分别位于音圈的两个短边上或者长边上。这种音圈的结构属于本领域技术人员的公知常识，在此不再具体说明。
所述FPCB板2连接在音圈1下端面上邻近音圈引线的位置，FPCB板2可以通过粘接的方式连接在音圈1的下端面上。在本发明一个具体的实施方式中，所述FPCB板2设置有一个，其呈与音圈1下端面形状匹配的环形。例如音圈1的截面呈长方形，则所述FPCB板2呈与其匹配的长方形。FPCB板2与音圈1的环状下端面粘接在一起。
在本发明另一个具体的实施方式中，所述FPCB板2可以设置有两个，该两个FPCB板2分别粘接在音圈1下端面的两个引线位置，使得一根引线可以对应一个FPCB板2。
本发明的引线需要连接到FPCB板2的电路中，使得FPCB板2可以起到转接、枢纽的作用。为此，本发明的连接结构，还包括连接线5，所述连接线5的一端例如可通过焊接的方式连接在FPCB板2的焊盘4上。本发明的连接线5的另一端用于与外部电路连接在一起，例如，其可以直接连接到外部电路中，也可以连接到发声装置用于与外部终端连接的焊盘上。连接线5可以采用本领域技术人员所熟知的锦丝线等。
本发明的连接结构，还包括将部分连接线5支撑在FPCB板2上的支撑部3，参考图1、图2。本发明的支撑部3例如可以粘接在FPCB板2上，连接线5的相应部分可以粘接在支撑部3上。通过该支撑部3可以使FPCB板2与连接线5之间保持一定的距离，在FPCB板2随着音圈振动的时候，可以避免连接线5与FPCB板2之间的擦碰。
本发明的连接结构，通过在音圈的下端设置FPCB板，使得可以通过FPCB板以及连接线5将音圈的引线与外部电路连接在一起，这就避免了因音圈引线材质的限制而导致的振动断裂问题，保证了该连接结构的稳定性。另外，通过支撑部使连接线与FPCB板保持一定的距离，可以避免振动时连接线与FPCB板的擦碰。
在本发明一个优选的实施方式中，所述支撑部3设置在邻近焊盘4的位置，也就是说，该支撑部3邻近连接线5与FPCB板2焊接的位置。连接线5从焊盘4的位置开始，经过支撑部3支撑后，通过弯曲变形向外引出，避免了连接线5与FPCB板2的接触。
本发明的支撑部3可以采用PI材料，当然对于本领域的技术人员而言，还可以采用其它较软的塑料材质等。连接线5与FPCB板2之间的距离取决于支撑部3的厚度，在本发明一个具体的实施方式中，所述支撑部3的厚度可以在0.1mm-0.2mm之间。
本发明还提供了一种发声装置，其包括振动系统和磁路系统，振动系统包括上述的连接结构以及振膜等，磁路系统包括由磁铁构成的磁间隙。音圈的引线通过上述的方式连接到外部电路中，可以大大提高发声装置的结构稳定性。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (10)

  1. 一种发声装置中音圈的连接结构，其特征在于：包括FPCB板(2)、具有两根引线的音圈(1)，所述FPCB板(2)连接在音圈(1)下端面上邻近音圈引线的位置，且所述音圈(1)的两根引线连接到FPCB板(2)的电路中；还包括连接线(5)，所述连接线(5)的一端连接在FPCB板(2)的焊盘(4)上；还包括将部分连接线(5)支撑在FPCB板(2)上的支撑部(3)。
  2. 根据权利要求1所述的连接结构，其特征在于：所述支撑部(3)设置在邻近焊盘(4)的位置。
  3. 根据权利要求1或2所述的连接结构，其特征在于：所述支撑部(3)为PI材料。
  4. 根据权利要求1或2或3所述的连接结构，其特征在于：所述支撑部(3)的一端粘接在FPCB板(2)上，所述连接线(5)粘接在支撑部(3)的另一端。
  5. 根据权利要求1至4中任一项所述的连接结构，其特征在于：所述支撑部(3)的厚度为0.1mm-0.2mm。
  6. 根据权利要求1至5中任一项所述的连接结构，其特征在于：所述FPCB板(2)设置有一个，其呈与音圈(1)下端面形状匹配的环形。
  7. 根据权利要求1至5中任一项所述的连接结构，其特征在于：所述FPCB板(2)设置有两个，分别粘接在音圈(1)下端面的两个引线位置。
  8. 根据权利要求1至7中任一项所述的连接结构，其特征在于：所述音圈(1)呈长方形，所述音圈(1)的两个引线位于音圈(1)的短边上。
  9. 根据权利要求1至7中任一项所述的连接结构，其特征在于：所述连接线(5)为锦丝线。
  10. 一种发声装置，其特征在于：包括如权利要求1至9任一项所述的连接结构。
PCT/CN2017/089351 2017-02-13 2017-06-21 发声装置中音圈的连接结构及发声装置 Ceased WO2018145385A1 (zh)

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