WO2016101722A1 - 微型扬声器 - Google Patents

微型扬声器 Download PDF

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Publication number
WO2016101722A1
WO2016101722A1 PCT/CN2015/094271 CN2015094271W WO2016101722A1 WO 2016101722 A1 WO2016101722 A1 WO 2016101722A1 CN 2015094271 W CN2015094271 W CN 2015094271W WO 2016101722 A1 WO2016101722 A1 WO 2016101722A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
vibrating diaphragm
adhesive
horizontal plane
housing
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Ceased
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PCT/CN2015/094271
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English (en)
French (fr)
Inventor
韩丹
杨赟
孙志军
李振军
范双双
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Goertek Inc
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Goertek Inc
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Publication date
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Publication of WO2016101722A1 publication Critical patent/WO2016101722A1/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
    • H04R9/02—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
    • H04R9/06—Loudspeakers

Definitions

  • the present invention relates to the field of electroacoustics, and in particular to a microspeaker.
  • a diaphragm which is one of the components of the vibration system is usually bonded and fixed to a casing as a support system.
  • uneven coating is often caused, and the overflow rubber is one of its performances.
  • the outer ring of the diaphragm will be jacked up due to too much glue, which is not good. It is fixed to the outer casing, and at the same time, the performance of the micro-speaker is affected because the overflow glue may drip along the outer circumference of the rubber coating layer in the magnetic circuit or other structure of the speaker.
  • the technical problem to be solved by the present invention is to provide a micro-speaker, which is focused on improving the bonding and fixing process of the speaker diaphragm under the condition that the other components remain unchanged, and is disposed on the bonding surface of the diaphragm and the outer casing.
  • the glue tank can be used to accommodate the overflow glue generated during the rubber coating process, and it is prevented from accumulating on the outer circumference of the diaphragm or flowing the glue layer to the magnetic circuit structure to affect the performance of the speaker.
  • a microspeaker comprising a diaphragm and a casing, wherein the diaphragm comprises a ball top and a loop portion; the diaphragm is supported and fixed by the casing; a portion of the edge of the diaphragm connected to the outer casing is provided with a joint portion; a joint portion of the diaphragm is fixed to the outer shell by a glue layer; and the joint of the diaphragm joint with the upper surface of the outer shell
  • the outer edge of the bonding surface is provided with an overflow groove for containing the overflow glue; the outer edge of the diaphragm joint partially covers the overflow groove.
  • the outer casing has a stepped structure including a first horizontal plane and a second horizontal plane; the first horizontal plane is higher than the second horizontal plane; the bonding surface is located on the second horizontal plane; The portion of the first horizontal plane combined with the second horizontal plane has a downwardly concave surface that accommodates the overflow tank.
  • the first horizontal surface of the outer casing forms a retaining wall, and the overflowing groove and the rubber layer are located at a space formed by the joint of the first horizontal plane, the second horizontal plane and the diaphragm within.
  • the diaphragm and the outer casing are both rectangular structures.
  • the ball top and the loop portion are bonded to a rigid composite layer on the top side of the ball.
  • an overflow groove is arranged on the outer edge of the bonding surface of the diaphragm and the outer casing, which can fully absorb the overflow glue generated during the fixing process of the diaphragm, and solve the problem caused by overflowing glue in the traditional structural design.
  • the outer edge of the diaphragm joint portion is partially covered by the overflow tank, which can ensure the normal flow direction of the glue coating, and can also avoid the upward movement of the glue due to the complete overflow of the glue tank, thereby completing the diaphragm better. fixed.
  • Figure 1 is a perspective view of a microspeaker according to the present invention.
  • FIG. 2 is a schematic view showing the connection of a diaphragm and a casing according to the present invention
  • Fig. 3 is a perspective view showing the structure of the overflow tank according to the present invention.
  • the micro-speaker of the present invention comprises a diaphragm 1 and a casing 10, and a diaphragm 1 package
  • the ball top 2 and the loop portion 3 are included; the diaphragm 1 is supported and fixed by the outer casing 10, wherein a portion of the edge of the diaphragm 1 that is connected to the outer casing 10 is provided with a joint portion 5; the joint portion 5 of the diaphragm 1 and the outer casing 10 pass through the glue
  • the layer 6 is bonded and fixed; the diaphragm joint portion 5 is combined with the bonding surface of the upper surface of the outer casing 10; the outer edge of the bonding surface is provided with a glue overflow groove 7 for containing the overflow glue; the outer edge of the diaphragm joint portion 5 will overflow
  • the glue tank 7 is partially covered.
  • the outer side edge of the bonding surface of the micro-speaker diaphragm 1 and the outer casing 10 is provided with an overflow tank 7 to provide an indwelling space for the overflow glue generated during the fixing process of the diaphragm 1 , which can be avoided compared with the prior art.
  • the uneven coating of the diaphragm causes the outer periphery of the diaphragm 1 to rise, and it can prevent the overflow of the glue from flowing along the glue layer to the magnetic circuit or other structure in the microspeaker, thereby further ensuring the performance of the microspeaker.
  • the outer edge of the diaphragm joint portion 5 partially covers the overflow tank 7 on the one hand to ensure the normal flow direction of the glue in the glue layer 6, and on the other hand, the overflow stored in the glue tank 7 When there is too much glue, it can be avoided that the glue is moved on the water because it is completely covered.
  • the outer casing 10 has a stepped structure including a first horizontal plane 8 and a second horizontal plane 9; the first horizontal plane 8 is higher than the second horizontal plane 9; the bonding surface is located on the second horizontal plane 9; the first horizontal plane 8 is The combined portion of the second horizontal surface 9 has a downwardly concave surface to accommodate the overflow tank 7.
  • the stepped structure design can prevent the glue layer from overflowing to one side on the one hand, and protect the diaphragm 1 bonded thereto from being crushed or damaged by external force on the other hand.
  • the first horizontal plane 8 of the outer casing 10 forms a retaining wall, and the overflow tank 7 and the rubber layer 6 are located within a space formed by the first horizontal plane 8, the second horizontal plane 9, and the diaphragm joint portion 5.
  • the diaphragm 1 and the outer casing 10 have a rectangular structure.
  • the ball top 2 and the loop portion 3 are joined to the rigid composite layer on the side of the ball top 2.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

本发明公开了一种微型扬声器，包括振膜和外壳，振膜包括球顶部和折环部；振膜通过外壳支撑固定；振膜边缘与外壳相连接的部分设置有结合部；振膜的结合部与外壳通过胶层粘结固定；振膜结合部与外壳的上表面的粘结面结合；粘结面的外侧边缘设置有容纳溢胶的溢胶槽；振膜结合部的外侧边缘将溢胶槽部分覆盖。本发明的微型扬声器，通过在振膜与外壳的粘结面上设置溢胶槽，使其可以充分吸纳振膜固定过程中产生的溢胶，避免涂胶不均造成振膜外周无法固定以及对磁路系统造成损害，同时可以保证胶水的正常流向，避免其上移，从而更好地完成振膜的固定，保证微型扬声器的性能。

Description

微型扬声器 技术领域
本发明涉及电声领域，具体的涉及一种微型扬声器。
背景技术
传统微型扬声器的结构中，作为振动系统组成部分之一的振膜，通常与作为支撑系统的外壳粘结固定。但在具体的固定过程中，常常会出现涂胶不均匀的情况，溢胶是其表现之一，这种情况下，振膜外圈会由于涂胶过多而被顶起，无法很好地将其与外壳固定，同时由于溢胶可能会沿涂胶层的外周滴落在扬声器的磁路或者其他结构中，进而影响到微型扬声器的性能。
因此，有必要对现有的微型扬声器的结构，特别是振膜粘结固定的过程进行改进，对溢胶进行妥善处理，避免对振膜本身的固定以及扬声器的性能造成不良影响。
发明内容
本发明所要解决的技术问题是：提供一种微型扬声器，在其他组成部分整体保持不变的情况下，着重对扬声器振膜的粘结固定过程进行改进，在振膜与外壳的粘结面设置溢胶槽，使其可以容纳涂胶过程中产生的溢胶，避免其堆积在振膜的外周或者顺延涂胶层流至磁路结构中对扬声器的性能造成影响。
为了实现上述目的，本发明采用以下技术方案：一种微型扬声器，包括振膜和外壳，其中，所述振膜包括球顶部和折环部；所述振膜通过所述外壳支撑固定；所述振膜边缘与所述外壳相连接的部分设置有结合部；所述振膜的结合部与所述外壳通过胶层粘结固定；所述振膜结合部与所述外壳的上表面的粘结面结合；所述粘结面的外侧边缘设置有容纳溢胶的溢胶槽；所述振膜结合部的外侧边缘将所述溢胶槽部分覆盖。
作为一种改进，所述外壳具有台阶状结构，包括第一水平面和第二水平面；所述第一水平面高于所述第二水平面；所述粘结面位于所述第二水平面上；所述第一水平面与所述第二水平面相结合的部分具有向下的凹面，容纳所述溢胶槽。
作为一种改进，所述外壳的第一水平面形成挡墙，所述溢胶槽与所述胶层位于所述第一水平面、所述第二水平面以及所述振膜的结合部共同形成的空间之内。
作为一种改进，所述振膜与所述外壳均为矩形结构。
作为一种改进，所述球顶部和所述折环部结合于所述球顶部一侧的刚性复合层。
相较于现有技术，在本发明中，在振膜与外壳的粘结面外侧边缘设置溢胶槽，能够充分吸纳振膜固定过程中产生的溢胶，解决传统结构设计中因溢胶引起的振膜外周被顶起而无法很好地固定的问题，同时能够避免溢胶流至磁路或者其他结构中造成损坏，从而保证了微型扬声器的性能。另外，振膜结合部的外侧边缘将溢胶槽部分覆盖，可以保证涂胶的正常流向，同时也可以避免因溢胶槽完全被覆盖而引起涂胶上移，从而更好地完成振膜的固定。
附图说明
图1为本发明涉及的微型扬声器的立体图；
图2为本发明涉及的振膜和外壳的连接示意图；
图3为本发明涉及的溢胶槽结构的立体图。
具体实施方式
下面结合附图，详细说明本发明内容：
实施例：
请参阅图1-图3所示，本发明微型扬声器包括振膜1和外壳10，振膜1包 括球顶部2和折环部3；振膜1通过外壳10支撑固定，其中，振膜1边缘与外壳10相连接的部分设置有结合部5；振膜1的结合部5与外壳10通过胶层6粘结固定；振膜结合部5与外壳10的上表面的粘结面结合；粘结面的外侧边缘设置有容纳溢胶的溢胶槽7；振膜结合部5的外侧边缘将溢胶槽7部分覆盖。
通过上述技术方案，微型扬声器振膜1与外壳10的粘结面外侧边缘设置溢胶槽7，为振膜1固定过程中产生的溢胶提供了留置空间，与现有技术相比，能够避免涂胶不均匀将振膜1外周顶起的情况发生，并且可以防止溢胶沿着胶层流至微型扬声器中的磁路或者其他结构内造成损害，进一步保证微型扬声器的性能。在具体的实施过程中，振膜结合部5的外侧边缘将溢胶槽7部分覆盖，一方面是为了保证胶层6内胶水的正常流向，另一方面，当溢胶槽7内储存的溢胶过多时，可以避免因其被完全覆盖而导致胶水上移。
如图3所示，外壳10具有台阶状结构，包括第一水平面8和第二水平面9；第一水平面8高于第二水平面9；粘结面位于第二水平面9上；第一水平面8与第二水平面9相结合的部分具有向下的凹面，容纳溢胶槽7。这种台阶状的结构设计，一方面可以防止胶层向一侧外溢，另一方面可以保护与其粘结的振膜1不被外力压伤或损坏。
如图3所示，外壳10的第一水平面8形成挡墙，溢胶槽7与胶层6位于第一水平面8、第二水平面9以及振膜结合部5共同形成的空间之内。
另外，本实施过程中，振膜1与外壳10均为矩形结构。
如图2所示，球顶部2和折环部3结合于球顶部2一侧的刚性复合层。
以上仅为本发明实施案例而已，并不用于限制本发明，但凡本领域普通技术人员根据本发明所揭示内容所作的等效修饰或变化，皆应纳入权利要求书中记载的保护范围内。

Claims (5)

  1. 一种微型扬声器，包括振膜和外壳，其特征在于：所述振膜包括球顶部和折环部；所述振膜通过所述外壳支撑固定；所述振膜边缘与所述外壳相连接的部分设置有结合部；所述振膜的结合部与所述外壳通过胶层粘结固定；所述振膜结合部与所述外壳的上表面的粘结面结合；所述粘结面的外侧边缘设置有容纳溢胶的溢胶槽；所述振膜结合部的外侧边缘将所述溢胶槽部分覆盖。
  2. 根据权利要求1所述的微型扬声器，其特征在于：所述外壳具有台阶状结构，包括第一水平面和第二水平面；所述第一水平面高于所述第二水平面；所述粘结面位于所述第二水平面上；所述第一水平面与所述第二水平面相结合的部分具有向下的凹面，容纳所述溢胶槽。
  3. 根据权利要求2所述的微型扬声器，其特征在于：所述外壳的第一水平面形成挡墙，所述溢胶槽与胶层位于所述第一水平面、所述第二水平面以及振膜的结合部共同形成的空间之内。
  4. 根据权利要求1所述的微型扬声器，其特征在于：所述振膜与所述外壳均为矩形结构。
  5. 根据权利要求1所述的微型扬声器，其特征在于：所述球顶部和所述折环部结合于所述球顶部一侧的刚性复合层。
PCT/CN2015/094271 2014-12-24 2015-11-11 微型扬声器 Ceased WO2016101722A1 (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109743647A (zh) * 2018-12-27 2019-05-10 瑞声声学科技(深圳)有限公司 扬声器
US10932057B2 (en) * 2018-08-05 2021-02-23 AAC Technologies Pte. Ltd. Speaker
CN113727239A (zh) * 2021-09-28 2021-11-30 瑞声开泰科技(武汉)有限公司 扬声器

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CN104581564A (zh) * 2014-12-24 2015-04-29 歌尔声学股份有限公司 微型扬声器
CN109525923B (zh) * 2018-11-12 2020-10-20 歌尔股份有限公司 发声装置和电子设备
WO2020133483A1 (zh) * 2018-12-29 2020-07-02 瑞声声学科技(深圳)有限公司 一种发声器件
CN109862483A (zh) * 2018-12-29 2019-06-07 瑞声声学科技(深圳)有限公司 一种扬声器
CN109788412A (zh) * 2018-12-29 2019-05-21 瑞声声学科技(深圳)有限公司 一种发声器件
CN110300341A (zh) * 2019-06-25 2019-10-01 珠海格力电器股份有限公司 一种防溢胶的扬声器组合结构及空调
CN212811995U (zh) * 2020-06-30 2021-03-26 瑞声科技(新加坡)有限公司 发声器件
CN113423030A (zh) * 2021-05-31 2021-09-21 深圳市奋达科技股份有限公司 一种无源辐射器防溢胶结构和音箱

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10932057B2 (en) * 2018-08-05 2021-02-23 AAC Technologies Pte. Ltd. Speaker
CN109743647A (zh) * 2018-12-27 2019-05-10 瑞声声学科技(深圳)有限公司 扬声器
CN113727239A (zh) * 2021-09-28 2021-11-30 瑞声开泰科技(武汉)有限公司 扬声器

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