WO2016155326A1 - 一种扬声器模组 - Google Patents

一种扬声器模组 Download PDF

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Publication number
WO2016155326A1
WO2016155326A1 PCT/CN2015/094884 CN2015094884W WO2016155326A1 WO 2016155326 A1 WO2016155326 A1 WO 2016155326A1 CN 2015094884 W CN2015094884 W CN 2015094884W WO 2016155326 A1 WO2016155326 A1 WO 2016155326A1
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WO
WIPO (PCT)
Prior art keywords
connecting portion
fpcb board
flexible connecting
lead
speaker module
Prior art date
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Ceased
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PCT/CN2015/094884
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English (en)
French (fr)
Inventor
张志兵
陈钢
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Goertek Inc
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Goertek Inc
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Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to US15/524,135 priority Critical patent/US10149062B2/en
Priority to KR1020177010841A priority patent/KR101965083B1/ko
Publication of WO2016155326A1 publication Critical patent/WO2016155326A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; 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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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
    • H04R9/045—Mounting

Definitions

  • the present invention relates to the field of sounding devices, and more particularly to a speaker module.
  • 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 vibration system and a magnetic circuit system disposed in the housing, wherein the vibration system includes a diaphragm and a voice coil disposed on the diaphragm for driving the diaphragm to sound, wherein the voice coil
  • the leads can be soldered to the injection molded pads or soldered directly to the FPCB board.
  • connection structure is easy to cause breakage of the lead wire due to long-term vibration of the voice coil due to soldering of the lead wire to the injection molded pad or directly to the FPCB board.
  • One existing method is to increase the length of the lead wire, which requires a larger wiring space, and if the lead wire is too long, the lead wire itself tends to exacerbate the occurrence of cracking under the action of resonance.
  • a speaker module comprising a cavity formed by a casing, a voice coil mounted in the cavity of the casing, an FPCB board, and a lead wire of the voice coil, and the lead wire and the FPCB a flexible connection between the plates, the free end of the lead is connected to one end of the flexible connection, the other end of the flexible connection is connected to the FPCB board; the flexible connection is suspended on the outer casing by a lead and an FPCB board In the inner cavity.
  • the free end of the lead is soldered to the flexible connection.
  • the flexible connecting portion is integrally formed with the FPCB board, which is an extension extending from the end of the FPCB board toward the free end of the lead.
  • the flexible connecting portion comprises a first portion substantially in the same plane as the FPCB board a planar segment, a second planar segment substantially in the same plane as the free end of the lead, and a connecting segment connecting the first planar segment and the second planar segment.
  • the outer casing includes an upper casing, a middle casing and a lower casing which are sequentially fastened together, and the FPCB board is fixed on the middle casing.
  • one end of the FPCB board for connecting the flexible connecting portion is provided with a positioning hole, and the middle case is provided with a protruding positioning post at a corresponding position.
  • one end of the FPCB board for connecting the flexible connecting portion is fixed to the middle case by means of heat fusion.
  • one end of the FPCB board for connecting the flexible connecting portion is fixed to the middle case by a double-sided tape.
  • the lead wire and the FPCB board are connected by a flexible connecting portion, and the flexible connecting portion is suspended in the inner cavity of the module.
  • the voice coil vibrates
  • the lead wire can vibrate together with the flexible connecting portion, that is, the pad connected between the lead wire and the flexible connecting portion can be vibrated along with the lead wire, thereby effectively preventing the lead wire from being connected with the flexible wire.
  • the disconnection and breakage of the connection position improves the reliability of the speaker module, and also avoids the problem of large space requirement and resonance of the module caused by the extension of the lead in the conventional scheme.
  • the inventors of the present invention have found that in the prior art, there is a problem that the lead wire is detached and broken at the pad position. Therefore, the technical task to be achieved by the present invention or the technical problem to be solved is not thought of or expected by those skilled in the art, so the present invention is a new technical solution.
  • FIG. 1 is an exploded view of a speaker module of the present invention.
  • FIG. 2 is a schematic view showing the internal structure of the speaker module of the present invention.
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 2;
  • Fig. 4 is a partially enlarged view showing a position where a lead wire and a flexible connecting portion are connected in another embodiment of the present invention.
  • Fig. 5 is a schematic structural view of a flexible connecting portion in another embodiment of the present invention.
  • the present invention provides a speaker module including an inner cavity formed by a casing, and a magnetic circuit system 9 and a vibration system installed in the inner cavity of the casing.
  • the magnetic circuit system 9 includes a basin frame and a magnet. , Huasi, etc., wherein the magnet is located in the basin frame, and a magnetic gap is formed between the magnet and the side wall of the basin frame.
  • the vibration system includes a diaphragm 6 fixed in the inner cavity, and a voice coil 8 that drives the diaphragm 6 to sound, the voice coil 8 is fixed to the diaphragm 6, and is suspended between the magnet and the side wall of the basin frame. In the gap, the center of the diaphragm 6 may also be provided with a dome or the like.
  • the voice coil 8 When the voice coil 8 is energized, the voice coil 8 vibrates under the action of the magnetic circuit system 9, and at the same time, the voice coil 8 drives the diaphragm 6 to vibrate together to realize the sound of the diaphrag
  • the outer casing includes an upper casing 5, a middle casing 3, and a lower casing 1 which are sequentially fastened together, and the upper casing 5 is fastened to one side of the middle casing 3, and the lower casing 1 is fastened to The other side of the middle casing 3 encloses a cavity for mounting the magnetic circuit system 9 and the vibration system.
  • the speaker module of the present invention further includes a lead 10 of the voice coil 8, and an FPCB board 2 located in the speaker module.
  • the FPCB board 2 can be mounted on the middle case 3.
  • the speaker module of the present invention further includes a flexible connecting portion 11 between the lead 10 and the FPCB board 2 for connecting the lead 10 and the FPCB board 2.
  • the free end of the lead 10 is connected to one end of the flexible connecting portion 11 , for example, by soldering; the other end of the flexible connecting portion 11 is connected to the FPCB board 2 .
  • the flexible connecting portion 11 is suspended in the inner cavity of the outer casing by the lead 10 and the FPCB board 2.
  • the lead 10 and the FPCB board 2 are connected by a flexible connecting portion 11, and the flexible connecting portion 11 is suspended in the inner cavity of the module.
  • the lead 10 can vibrate together with the flexible connecting portion 11, that is, the pad connected between the lead 10 and the flexible connecting portion 11 can be vibrated along with the lead 10, so that the lead can be effectively prevented
  • the fall-off and breakage of the connection position with the flexible connecting portion 11 improves the reliability of the speaker module, and also avoids the problem of large space requirement and resonance of the module caused by lengthening the lead wire in the conventional solution.
  • the flexible connecting portion 11 of the present invention may be integrally formed with the FPCB board 2, which is an extending portion extending from the end of the FPCB board 2 toward the free end of the lead 10.
  • the flexible joint 11 can also be made of a thin steel sheet material.
  • one end of the FPCB board 2 for connecting the flexible connecting portion 11 is provided with a positioning hole, and the corresponding position of the middle shell 3 is provided with a convex portion.
  • the one end of the FPCB board 2 for connecting the flexible connecting portion 11 is fixed to the middle case 3 by means of hot melt or double-sided tape.
  • the flexible connecting portion 11 includes a first planar section 110 substantially in the same plane as the FPCB board 2, substantially located at the free end of the lead 10. a second plane segment 112 in the same plane, and Referring to FIG. 5, the connecting section 111 of the first plane segment 110 and the second plane segment 112 is connected.
  • the flexible connecting portion 11 further includes a flexible connecting portion pad 113 at the end of the second planar portion 112, through which the flexible connecting portion pad 113 will It is soldered or otherwise secured to the FPCB board 2.

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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

本发明公开了一种扬声器模组，包括由外壳构成的内腔，以及安装在外壳内腔中的音圈、FPCB板，还包括音圈的引线，以及位于引线与FPCB板之间的柔性连接部，所述引线的自由端与柔性连接部的一端连接，所述柔性连接部的另一端与FPCB板连接；所述柔性连接部通过引线、FPCB板悬置在外壳的内腔中。本发明的扬声器模组，在音圈振动的时候，引线可以与柔性连接部一起振动，也就是说，可以使引线与柔性连接部之间连接的焊盘随着引线一起振动，从而可以有效地防止引线在其与柔性连接部连接位置的脱落、断裂，提高了扬声器模组的可靠性，同时也避免了传统方案中加长引线所带来的模组需求空间大以及谐振的问题。

Description

一种扬声器模组 技术领域
本发明涉及发声装置领域，更具体地，本发明涉及一种扬声器模组。
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振动系统、磁路系统，其中振动系统包括振膜以及设置在振膜上用于驱动振膜发声的音圈，其中，该音圈需要通过引线与系统连接，实现电路的连通。现有技术中，该引线可以焊接到注塑的焊盘上或者直接焊接到FPCB板上。
上述的连接结构，由于引线焊接到注塑的焊盘上或者直接焊接到FPCB板上，在音圈长期的振动下，很容易造成引线的断裂。现有一种做法是增加引线的长度，这就需要更大的走线空间，而且如果引线过长，往往会使得引线本身在共振的作用下加剧断裂的发生。
发明内容
本发明的一个目的是提供一种扬声器模组的新技术方案。
根据本发明的第一方面，提供了一种扬声器模组，包括由外壳构成的内腔，以及安装在外壳内腔中的音圈、FPCB板，还包括音圈的引线，以及位于引线与FPCB板之间的柔性连接部，所述引线的自由端与柔性连接部的一端连接，所述柔性连接部的另一端与FPCB板连接；所述柔性连接部通过引线、FPCB板悬置在外壳的内腔中。
优选地，所述引线的自由端与柔性连接部焊接在一起。
优选地，所述柔性连接部与FPCB板一体成型，其为从FPCB板端头向引线自由端方向延伸的延伸部。
优选地，所述柔性连接部包括基本与FPCB板位于同一平面上的第一 平面段，基本与引线自由端位于同一平面内的第二平面段，以及连接第一平面段、第二平面段的连接段。
优选地，所述外壳包括依次扣合在一起的上壳、中壳、下壳，所述FPCB板固定在中壳上。
优选地，所述FPCB板上用于连接柔性连接部的一端设置有定位孔，所述中壳上相应的位置设置有凸起的定位柱。
优选地，所述FPCB板用于连接柔性连接部的一端通过热熔的方式与中壳固定。
优选地，所述FPCB板用于连接柔性连接部的一端通过双面胶与中壳固定。
本发明的扬声器模组，通过柔性连接部将引线与FPCB板连接在一起，而且柔性连接部悬置在模组的内腔中。在音圈振动的时候，引线可以与柔性连接部一起振动，也就是说，可以使引线与柔性连接部之间连接的焊盘随着引线一起振动，从而可以有效地防止引线在其与柔性连接部连接位置的脱落、断裂，提高了扬声器模组的可靠性，同时也避免了传统方案中加长引线所带来的模组需求空间大以及谐振的问题。
本发明的发明人发现，在现有技术中，往往会出现引线在焊盘位置脱离、断裂的问题。因此，本发明所要实现的技术任务或者所要解决的技术问题是本领域技术人员从未想到的或者没有预期到的，故本发明是一种新的技术方案。
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是本发明扬声器模组的爆炸图。
图2是本发明扬声器模组的内部结构示意图。
图3是图2中沿B-B方向的剖视图。
图4是本发明另一实施例中引线与柔性连接部连接位置的局部放大图。
图5是本发明另一实施方式中柔性连接部的结构示意图。
其中，标号代表的部件如下：
1-下壳；2-FPCB板；3-中壳；4-定位柱；5-上壳；6-振膜；8-音圈；9-磁路系统；10-引线；11-柔性连接部；110-第一平面段；111-连接段；112-第二平面段；113-柔性连接部焊盘。
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至图4，本发明提供了一种扬声器模组，包括由外壳构成的内腔，以及安装在外壳内腔中的磁路系统9和振动系统，磁路系统9包括盆架、磁铁、华司等，其中磁铁位于盆架中，且其与盆架的侧壁之间形成有磁间隙。振动系统包括固定在内腔中的振膜6，以及驱动振膜6发声的音圈8，所述音圈8固定在振膜6上，并且悬置在磁铁与盆架侧壁之间的磁间隙中；振膜6的中心位置还可设有球顶等。当音圈8通电后，音圈8会在磁路系统9的作用下振动，与此同时，音圈8驱动振膜6一同振动，实现振膜6的发声。
在本发明一个具体的实施方式中，外壳包括依次扣合在一起的上壳5、中壳3、下壳1，该上壳5扣合在中壳3的一侧，下壳1扣合在中壳3的另一侧，并围成用于安装磁路系统9和振动系统的内腔。
参考图3、图4，本发明的扬声器模组，还包括音圈8的引线10，以及位于扬声器模组中的FPCB板2。具体地，FPCB板2可以安装在中壳3上。
本发明的扬声器模组，还包括位于引线10与FPCB板2之间、且用于连接引线10和FPCB板2的柔性连接部11。其中，所述引线10的自由端与柔性连接部11的一端连接，例如采用焊接的方式；所述柔性连接部11的另一端与FPCB板2连接。而且，所述柔性连接部11通过引线10、FPCB板2悬置在外壳的内腔中。
本发明的扬声器模组，通过柔性连接部11将引线10与FPCB板2连接在一起，而且柔性连接部11悬置在模组的内腔中。在音圈振动的时候，引线10可以与柔性连接部11一起振动，也就是说，可以使引线10与柔性连接部11之间连接的焊盘随着引线10一起振动，从而可以有效地防止引线在其与柔性连接部11连接位置的脱落、断裂，提高了扬声器模组的可靠性，同时也避免了传统方案中加长引线所带来的模组需求空间大以及谐振的问题。
本发明的柔性连接部11可以与FPCB板2是一体成型，其为从FPCB板2端头向引线10自由端方向延伸的延伸部。当然，对于本领域的技术人员来说，柔性连接部11还可以采用薄钢片材料。采用柔性连接部11与引线10焊接在一起，可以提高二者之间的焊盘与引线10振动效果，避免了由于刚性连接所带来的脱落、断裂等问题。
本发明的扬声器模组中，为了便于安装FPCB板2，在所述FPCB板2上用于连接柔性连接部11的一端设置有定位孔，所述中壳3上相应的位置设置有凸起的定位柱4。其中，所述FPCB板2用于连接柔性连接部11的一端通过热熔或者双面胶的方式与中壳3固定。
扬声器模组中，由于引线10的自由端与FPCB板2往往不在一个平面上，所以柔性连接部11包括基本与FPCB板2位于同一平面上的第一平面段110，基本与引线10自由端位于同一平面内的第二平面段112，以及连 接第一平面段110、第二平面段112的连接段111，参考图5。当该柔性连接部11与FPCB板2是两体分立安装的时候，该柔性连接部11还包括位于第二平面段112端头的柔性连接部焊盘113，通过该柔性连接部焊盘113将其焊接或以其它方式固定在FPCB板2上。
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 (8)

  1. 一种扬声器模组，其特征在于：包括由外壳构成的内腔，以及安装在外壳内腔中的音圈(8)、FPCB板(2)，还包括音圈(8)的引线(10)，以及位于引线(10)与FPCB板(2)之间的柔性连接部(11)，所述引线(10)的自由端与柔性连接部(11)的一端连接，所述柔性连接部(11)的另一端与FPCB板(2)连接；所述柔性连接部(11)通过引线(10)、FPCB板(2)悬置在外壳的内腔中。
  2. 根据权利要求1所述的扬声器模组，其特征在于：所述引线(10)的自由端与柔性连接部(11)焊接在一起。
  3. 根据权利要求1所述的扬声器模组，其特征在于：所述柔性连接部(11)与FPCB板(2)一体成型，其为从FPCB板(2)端头向引线(2)自由端方向延伸的延伸部。
  4. 根据权利要求1所述的扬声器模组，其特征在于：所述柔性连接部(11)包括基本与FPCB板(2)位于同一平面上的第一平面段(110)，基本与引线(2)自由端位于同一平面内的第二平面段(112)，以及连接第一平面段(110)、第二平面段(112)的连接段(111)。
  5. 根据权利要求1所述的扬声器模组，其特征在于：所述外壳包括依次扣合在一起的上壳(5)、中壳(3)、下壳(1)，所述FPCB板(2)固定在中壳(3)上。
  6. 根据权利要求5所述的扬声器模组，其特征在于：所述FPCB板(2)上用于连接柔性连接部(11)的一端设置有定位孔，所述中壳(3)上相应的位置设置有凸起的定位柱(4)。
  7. 根据权利要求6所述的扬声器模组，其特征在于：所述FPCB板(2)用于连接柔性连接部(11)的一端通过热熔的方式与中壳(3)固定。
  8. 根据权利要求6所述的扬声器模组，其特征在于：所述FPCB板(2)用于连接柔性连接部(11)的一端通过双面胶与中壳(3)固定。
PCT/CN2015/094884 2015-03-31 2015-11-18 一种扬声器模组 Ceased WO2016155326A1 (zh)

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