WO2013123777A1 - 发声器模组及其组装方法 - Google Patents

发声器模组及其组装方法 Download PDF

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Publication number
WO2013123777A1
WO2013123777A1 PCT/CN2012/082842 CN2012082842W WO2013123777A1 WO 2013123777 A1 WO2013123777 A1 WO 2013123777A1 CN 2012082842 W CN2012082842 W CN 2012082842W WO 2013123777 A1 WO2013123777 A1 WO 2013123777A1
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WIPO (PCT)
Prior art keywords
magnetic circuit
circuit system
magnetic
magnet
yoke
Prior art date
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Ceased
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PCT/CN2012/082842
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English (en)
French (fr)
Inventor
陈钢
邵明辉
许超
徐江
苗青
牟宗君
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Goertek Inc
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Goertek Inc
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Publication date
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Priority to KR1020147023318A priority Critical patent/KR20140116947A/ko
Priority to US14/380,702 priority patent/US20150036862A1/en
Publication of WO2013123777A1 publication Critical patent/WO2013123777A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04R1/02—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
    • 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
    • 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
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/029—Manufacturing aspects of enclosures transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/024—Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of 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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer

Definitions

  • the present invention relates to the field of electroacoustic conversion technology, and in particular to a sound generator module and a method of assembling the sound generator module. Background technique
  • the sounder unit is generally placed in a module housed by an external housing. To match the acoustic performance of the sounder.
  • the structure of the sounder module due to the structural size of the sounder unit body and the design of the sound cavity space, the rated size of the sounder unit is limited, and the product structure design is complicated; and the assembly of the sounder unit and the outer casing needs to be considered.
  • the design process of the product is complicated, and the assembly process needs to be increased, which is not conducive to the reduction of production cost.
  • the technical problem to be solved by the present invention is to provide an increase in the size of the sounding unit when the size of the sounder module is constant; and the present invention provides a method for assembling the sounder module, which simplifies the assembly process and the process, and reduces Production costs.
  • the present invention provides the following technical solutions:
  • a sounder module includes a sounder unit and an outer casing accommodating the sounder unit, the sounder unit includes a magnetic circuit system, and the magnetic circuit system includes a magnetically permeable plate, a magnet and a yoke sequentially assembled And, the outer casing of the sound generator module forms a frame that fixes the magnetic circuit system; the magnetic circuit system and the outer casing are integrally injection molded structures.
  • the magnetic circuit system is elongated, and the yoke corresponding to the long axis side of the magnetic circuit system is provided with an opening portion, and the opening portion of the yoke correspondingly mounts the magnetic conductive plate and the Magnet
  • the outer casing is integrally molded with the magnetic conductive plate, the magnet, and the yoke.
  • the outer casing includes a first casing and a second casing.
  • the magnetic circuit system is a dual magnetic circuit structure, including an outer magnetic conductive plate, an outer magnet, an inner magnetic conductive plate and an inner magnet respectively assembled with the yoke; the outer magnetic conductive plate and the outer magnetic plate A magnet, the yoke, and the outer casing are integrally molded.
  • a method of assembling the sounder module, the outer casing and the magnetic circuit system are assembled by the following method:
  • the magnetic circuit system is a dual magnetic circuit structure including an outer magnetic conductive plate, an outer magnet and an inner magnetic conductive plate, an inner magnet respectively assembled with the yoke; the outer casing and the outer casing
  • the magnetic circuit system is assembled in the following ways:
  • the outer casing includes a first casing and a second casing, and the magnetic circuit system is integrally molded with the first casing.
  • the sound generator module provided by the present invention the outer casing of the sounder module also serves as a frame of the magnetic circuit system of the fixed sounder unit, and the magnetic circuit system and the outer casing are integrally injection-molded.
  • the internal size of the sounder unit can be reduced, the product design is simplified, and the size of the sounding unit is facilitated; and the assembly method of the sounder module provided by the present invention is pre-assembled by the magnetic circuit system and integrated with the external body. Molding simplifies the assembly process and process and reduces production costs.
  • FIG. 1 is an exploded perspective view of a sounder module according to the present invention
  • Figure 2 is a cross-sectional view of the sound generator module of the present invention.
  • FIG. 3 is a schematic view showing the assembly of an external magnetic circuit of the sound generator module according to the present invention.
  • FIG. 4 is a schematic view showing the magnetic circuit system of the sound generator module and the first casing according to the present invention.
  • FIG. 5 is a cross-sectional view taken along line A-A of FIG.
  • the sound generator module provided by the present invention includes a sounder unit and an outer casing accommodating the sounder unit, and the outer casing preferably includes a first casing 11 and a first casing.
  • the mated second housing 12; the sounder unit includes a vibration system and a magnetic circuit system.
  • the vibration system includes a diaphragm formed by the intermediate portion 21 and the edge portion 22, a support member 23 disposed on the edge portion 22, and an elastic member 24 disposed between the edge portion 22 and the lower casing 12, wherein the support member 23 is preferably a copper ring, and the elastic member 24 is preferably foam.
  • the magnetic circuit system includes a magnetically permeable plate, a magnet and a yoke which are sequentially assembled.
  • the magnetic circuit system in this embodiment is a dual magnetic circuit structure, including The outer magnetic plate 311, the outer magnet 321 and the inner magnetic conductive plate 312, and the inner magnet 322 which are sequentially assembled with the yoke 33
  • the first housing 11 forms a frame that fixes the magnetic circuit system of the sounder unit; the magnetic circuit system and the first housing 11 are integrally injection molded.
  • the first housing 11 also serves as a frame for fixing the magnetic circuit system of the sounder unit, and the magnetic circuit system and the first housing 11 are integrally injection-molded, and the sound generation is enhanced when the module size is constant. Unit size simplifies product design.
  • the magnetic circuit system has an elongated shape, and the yoke 33 corresponding to the long axis side of the magnetic circuit system is provided with an opening portion 331, and the opening portion 331 of the yoke 33 corresponds to the outer magnetic conductive plate 311 and the outer magnet 321
  • the first housing 11 is integrally molded with the outer magnetic conductive plate 311, the outer magnet 321 and the yoke 33. With this design, the injection molding of the first casing 11 can also wrap the magnetic circuit system, and the degree of firmness of the magnetic circuit system and the overall structure of the first casing can be better achieved.
  • the outer casing may also be composed of other structures or a plurality of components.
  • the sounder unit of the double magnetic circuit structure is only a preferred solution.
  • a magnetic circuit structure of a magnet such as an internal magnetic field, may also be selected. The design of the road or the external magnetic circuit does not affect the implementation of the invention.
  • the magnetic conductive plate, the magnet and the yoke 33 are sequentially assembled;
  • the preferred outer casing is assembled by the following assembly method:
  • outer magnetic plate 311, outer magnet 321 and yoke 33 are placed in an injection molding jig forming the outer body;
  • the outer casing includes a first casing 11 and a second casing 12, and the magnetic circuit system is integrally molded with the first casing 11.
  • This design makes the process simpler.
  • the sounder module and its assembly method according to the present invention are described by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that the above is only the specific embodiment of the invention, and is not intended to limit the present invention. For the sound generator module and the assembly method thereof provided by the present invention, the present invention may be omitted without departing from the scope of the present invention. Make various improvements on the basis. Therefore, the scope of the invention should be determined by the content of the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Manufacturing & Machinery (AREA)

Description

发声器模组及其组装方法
技术领域
本发明涉及电声转换技术领域， 具体的， 涉及一种发声器模组以及该发 声器模组的组装方法。 背景技术
随着消费类电子产品市场的快速发展， 大量的微型电声类元器件， 如发 声器得到了广泛的应用； 实际应用中， 一般将发声器单元放置在由外部壳体 所包容的模组中， 以匹配发声器的声学性能。
这种发声器模组结构， 由于发声器单元本体结构尺寸和声腔空间设计要 求， 发声器单元的额定尺寸受到限制， 同时产品结构设计较为复杂； 同时由 于需要考虑发声器单元与外部壳体的装配， 产品的设计工艺较为复杂， 需要 增加组装工序， 不利于生产成本的降低。
因此， 有必要对现有的发声器模组结构和组装工艺进行改进， 以避免上 述缺陷。 发明内容
本发明所要解决的技术问题是提供一种在发声器模组尺寸一定的情况 下， 增加发声单元的尺寸； 同时本发明提供一种发声器模组的组装方法， 简 化了组装工艺和工序， 降低了生产成本。
为了实现上述目的， 本发明提供以下技术方案：
一种发声器模组， 包括发声器单元以及容纳所述发声器单元的外部壳体， 所述发声器单元包括磁路系统， 所述磁路系统包括依次组装的导磁板、 磁铁 和磁轭， 并且， 所述发声器模组的外部壳体形成固定所述磁路系统的框架； 所述磁路系统与所述外部壳体为一体注塑结构。
作为一种改进， 所述磁路系统为长形， 所述磁路系统的长轴侧对应的所 述磁轭设有开口部， 所述磁轭的开口部对应安装所述导磁板和所述磁铁； 所 述外部壳体与所述导磁板、 所述磁铁和所述磁轭一体注塑。
作为一种改进， 注塑形成所述外部売体的注塑料包裹所述磁路系统。 作为一种改进， 所述外部壳体包括第一壳体和第二壳体。
作为一种改进， 所述磁路系统为双磁路结构， 包括分别与所述磁轭顺序 组装的外导磁板、 外磁铁和内导磁板、 内磁铁； 所述外导磁板、 外磁铁、 所 述磁轭与所述外部壳体一体注塑。
一种该发声器模组的组装方法， 所述外部壳体和所述磁路系统采用以下 方法组装：
a.首先将所述导磁板、 所述磁铁与所述磁轭顺序装配；
b.将组装后的所述导磁板、磁铁和磁轭放入形成所述外部壳体的注塑治具 中；
c.加入注塑料， 一体成型所述磁路系统和所述发声器模组的外部壳体。 作为一种改进， 所述磁路系统为双磁路结构， 包括分别与所述磁轭顺序 组装的外导磁板、 外磁铁和内导磁板、 内磁铁； 所述外部壳体和所述磁路系 统采用以下方式组装：
a首先将所述外导磁板、 所述外磁铁与所述磁轭顺序装配；
b.将组装后的所述外导磁板、外磁铁和磁轭放入形成所述外部壳体的注塑 治具中；
c.加入注塑料， 一体成型所述磁路系统和所述发声器模组的外部壳体； 将所述内导磁板、 所述内磁铁与所述磁轭顺序装配。
作为一种改进， 外部壳体包括第一壳体和第二壳体， 所述磁路系统与所 述第一壳体一体注塑。
由于采用了上述技术方案， 本发明所提供的发声器模组， 发声器模组的 外部壳体兼做固定发声器单元磁路系统的框架， 并且磁路系统与外部壳体为 一体注塑结构， 可以减小发声器单元内部尺寸， 简化了产品设计， 有利于增 大发声单元的尺寸； 同时本发明所提供的该发声器模组的组装方法， 通过磁 路系统预先装配并与外部売体一体成型， 简化了组装工艺和工序， 降低了生 产成本。 为了实现上述以及相关目的， 本发明的一个或多个方面包括后面将详细 说明并在权利要求中特别指出的特征。 下面的说明以及附图详细说明了本发 明的某些示例性方面。 然而， 这些方面指示的仅仅是可使用本发明的原理的 各种方式中的一些方式。 此外， 本发明旨在包括所有这些方面以及它们的等 同物。 附图说明
通过参考以下结合附图的说明及权利要求书的内容， 并且随着对本发明 的更全面理解， 本发明的其它目的及结果将更加明白及易于理解。 在附图中： 图 1为本发明涉及的发声器模组的分解示意图；
图 2为本发明涉及的发声器模组的剖视图；
图 3为本发明涉及的发声器模组的外磁路装配示意图；
图 4为本发明涉及的发声器模组磁路系统与第一壳体成型后的示意图； 图 5为图 4的 A-A向剖视图。
在所有附图中相同的标号指示相似或相应的特征或功能。 具体实施方式
在下面的描述中， 出于说明的目的， 为了提供对一个或多个实施例的全 面理解， 阐述了许多具体细节。 然而， 很明显， 也可以在没有这些具体细节 的情况下实现这些实施例。 在其它例子中， 为了便于描述一个或多个实施例， 公知的结构和设备以方框图的形式示出。 下面结合附图详细说明本发明的具体结构。
实施例：
如图 1-图 5所示， 本发明所提供的发声器模组包括发声器单元以及容纳 所述发声器单元的外部壳体， 外部壳体优选包括第一壳体 11和与第一壳体配 合的第二壳体 12; 发声器单元包括振动系统和磁路系统。
其中， 振动系统包括由中间部 21和边缘部 22形成的振膜， 设置在边缘 部 22上的支撑部件 23， 以及设置在边缘部 22和下壳体 12之间的弹性部件 24， 其中支撑部件 23优选铜环， 弹性部件 24优选泡棉。 磁路系统包括依次 组装的导磁板、 磁铁和磁轭， 本实施例中的磁路系统为双磁路结构， 包括分 别与磁轭 33依次组装的外导磁板 311、 外磁铁 321和内导磁板 312、 内磁铁 322
在本实施例中， 第一壳体 11形成固定所述发声器单元磁路系统的框架； 所述磁路系统与所述第一壳体 11为一体注塑结构。
这种设计， 第一壳体 11兼做固定发声器单元磁路系统的框架， 并且磁路 系统与第一壳体 11为一体注塑结构， 在模组尺寸一定的情况下， 有利于增大 发声器单元尺寸， 简化了产品设计。
具体的， 优选磁路系统为长形， 在磁路系统的长轴侧对应的所述磁轭 33 设有开口部 331， 磁轭 33的开口部 331对应安装外导磁板 311和外磁铁 321 ; 第一壳体 11与外导磁板 311、 外磁铁 321和磁轭 33—体注塑。 这种设计， 第 一壳体 11的注塑料也可以包裹所述磁路系统， 可以更好的实现磁路系统与第 一壳体整体结构的牢固程度。
本实施方案中， 外部壳体也可以为其它结构或者数量的部件组成， 双磁 路结构的发声器单元仅为优选的方案， 本实施例中也可以选择一个磁铁的磁 路结构， 如内磁路或者外磁路设计， 皆不影响本发明创造的实施。
本实施例中的发声器模组的外部壳体和发声器单元的磁路系统采用如下 装配方式进行装配：
a.首先将所述导磁板、 所述磁铁与所述磁轭 33顺序装配；
b.将组装后的所述导磁板、磁铁和磁轭放入形成所述外部壳体的注塑治具 中；
c.加入注塑料， 一体成型所述磁路系统和所述发声器模组的外部売体。 这种装配方法， 通过磁路系统预先装配并与外部壳体一体成型， 简化了 组装工艺和工序， 降低了生产成本。
具体到本实施例中的双磁路结构的发声器单元， 优选的外部壳体采用如 下装配方式进行装配：
a首先将外导磁板 311、 外磁铁 321与磁轭 33顺序装配；
b.将组装后的外导磁板 311、 外磁铁 321和磁轭 33放入形成所述外部売 体的注塑治具中；
c.加入注塑料， 一体成型所述磁路系统和所述发声器模组的外部壳体； d.将内导磁板 312、 内磁铁 322与磁轭 33顺序装配。 双磁路结构的发声器单元采用以上装配方式进行装配， 工艺更为简单， 更好的实现本发明创造的技术效果。
作为优选的方案， 外部壳体包括第一壳体 11和第二壳体 12， 所述磁路系 统与所述第一壳体 11一体注塑。 这种设计， 工艺更为简单。 如上参照附图以示例的方式描述了根据本发明的发声器模组及其组装方 法。 但是， 本领域技术人员应当理解， 以上仅为发明具体实施案例而已， 并 不用于限制本发明， 对于上述本发明所提出的发声器模组及其组装方法， 还 可以在不脱离本发明内容的基础上做出各种改进。 因此， 本发明的保护范围 应当由所附的权利要求书的内容确定。

Claims

权 利 要 求 书
1、 一种发声器模组， 包括发声器单元以及容纳所述发声器单元的外部壳 体， 所述发声器单元包括磁路系统， 所述磁路系统包括依次组装的导磁板、 磁铁和磁轭， 其特征在于，
所述发声器模组的外部壳体形成固定所述发声器的磁路系统的框架； 所 述磁路系统与所述外部壳体为一体注塑结构。
2、 根据权利要求 1所述的发声器模组， 其特征在于，
所述磁路系统为长形， 所述磁路系统的长轴侧对应的所述磁轭设有开口 部， 所述磁轭的开口部对应安装所述导磁板和所述磁铁； 所述外部壳体与所 述导磁板、 所述磁铁和所述磁轭一体注塑。
3、 根据权利要求 2所述的发声器模组， 其特征在于，
注塑形成所述外部壳体的注塑料包裹所述磁路系统。
4、 根据权利要求 1- 3中任一权利要求所述的发声器模组， 其特征在于， 所述外部壳体包括第一壳体和第二壳体。
5、 根据权利要求 1-3中任一权利要求所述的发声器模组， 其特征在于， 所述磁路系统为双磁路结构， 包括分别与所述磁轭顺序组装的外导磁板、 外磁铁和内导磁板、 内磁铁； 所述外导磁板、 外磁铁、 所述磁轭与所述外部 壳体一体注塑。
6、 一种如权利要求 1所述的发声器模组的组装方法， 其特征在于， 所述外部壳体和所述磁路系统采用以下方法组装：
a: 首先将所述导磁板、 所述磁铁与所述磁轭顺序装配；
b: 将组装后的所述导磁板、 磁铁和磁轭放入形成所述外部壳体的注塑治 c: 加入注塑料， 一体成型所述磁路系统和所述发声器模组的外部壳体。
7、 根据权利要求 6所述的发声器模组的组装方法， 其特征在于， 所述磁路系统为双磁路结构， 包括分别与所述磁轭顺序组装的外导磁板、 外磁铁和内导磁板、 内磁铁； 所述外部壳体和所述磁路系统采用以下方式组 装：
在歩骤 a中： 首先将所述外导磁板、 所述外磁铁与所述磁轭顺序装配； 在歩骤 b 中： 将组装后的所述外导磁板、 外磁铁和磁轭放入形成所述外 部壳体的注塑治具中；
在步骤 c 中： 加入注塑料， 一体成型所述磁路系统和所述发声器模组的 外部壳体；
d.将所述内导磁板、 所述内磁铁与所述磁轭顺序装配。
8、 如权利要求 6或 7所述的发声器模组的组装方法， 其特征在于， 所述外部壳体包括第一壳体和第二壳体， 所述磁路系统与所述第一壳体 一体注塑。
PCT/CN2012/082842 2012-02-22 2012-10-12 发声器模组及其组装方法 Ceased WO2013123777A1 (zh)

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