WO2020134370A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2020134370A1
WO2020134370A1 PCT/CN2019/111099 CN2019111099W WO2020134370A1 WO 2020134370 A1 WO2020134370 A1 WO 2020134370A1 CN 2019111099 W CN2019111099 W CN 2019111099W WO 2020134370 A1 WO2020134370 A1 WO 2020134370A1
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WO
WIPO (PCT)
Prior art keywords
sound
side wall
hole
metal sheet
damping layer
Prior art date
Application number
PCT/CN2019/111099
Other languages
English (en)
French (fr)
Inventor
曹成铭
肖波
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2020134370A1 publication Critical patent/WO2020134370A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers
    • 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
    • H04R9/025—Magnetic circuit
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts

Definitions

  • the utility model belongs to the field of electroacoustic transduction, and particularly relates to a sound-emitting device.
  • the sound-generating device in the related art includes a basin frame surrounded by a side wall, a vibration system and a magnetic circuit system respectively fixed to the basin frame, the side wall is provided with a leakage hole penetrating therethrough, and the sound-generating device also It includes a damping layer that is fixed to the side wall by adhesive bonding and completely covers the leakage hole.
  • the disadvantage of the related art is that in order to ensure that the damping is firmly attached to the side wall, it is necessary to ensure that the width of the adhesive backing is sufficiently large, which leads to the limitation of the size of the damping hole, and it is easy to cause damping delamination and warping.
  • the purpose of the utility model is to provide a sound-generating device which can reduce the fixed joint width of the damping layer to make the leakage hole larger, and at the same time can improve the problem of delamination and warping of the damping layer.
  • the present invention provides a sound-generating device, including a basin frame surrounded by a side wall, a vibration system and a magnetic circuit system respectively fixed to the basin frame, and a leakage hole provided through the side wall,
  • the sound-emitting device further includes a metal sheet that is injection-molded to the side wall, the metal sheet is provided with a through hole corresponding to the leakage hole, and the sound-emitting device further includes a laser spot welding fixed to the metal sheet and The damping layer completely covering the through hole and the leakage hole.
  • the metal sheet is a steel sheet.
  • two leakage holes in the same group are arranged at intervals.
  • FIG. 2 is an exploded view of a part of the structure of the sound-generating device of the present invention.
  • the side wall 11 includes leakage holes 111 therethrough, and there are four leakage holes 111.
  • the four leakage holes 111 are provided in groups of two opposite side walls 11 parallel to the long axis of the basin frame 1. As a result, it is conducive to product design and assembly.
  • the two leakage holes 111 can also be respectively provided on the two adjacent side walls 11 of the basin 1, which is also feasible, and the principle is the same as the above.
  • Two leakage holes 111 in the same group are arranged at intervals. The design facilitates smooth pressure relief and guarantees acoustic performance.
  • the sound emitting device 100 further includes a recess 12 formed by the outer side of the side wall 11, and the leakage hole 111 communicates with the recess 12.
  • the damping layer 5 is accommodated in the accommodating groove 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本实用新型公开了一种发声器件，包括由侧壁围成的盆架、分别固定于所述盆架的振动系统和磁路系统、贯穿所述侧壁设置的泄漏孔，所述发声器件还包括注塑结合于所述侧壁的金属片，所述金属片设有与所述泄漏孔对应的通孔，所述发声器件还包括通过激光点焊固定于所述金属片且完全覆盖所述通孔和所述泄漏孔的阻尼层。本实用新型提供的发声器件可以减小阻尼层的固定结合边宽，泄漏孔可以开的更大，同时可以改善阻尼层分层、起翘的问题。

Description

发声器件 技术领域
本实用新型属于电声换能领域，特别涉及一种发声器件。
 背景技术
随着移动互联网时代的到来，智能移动设备的数量不断上升。而在众多移动设备之中，手机无疑是最常见、最便携的移动终端设备。目前，手机的功能极其多样，其中之一便是高品质的音乐功能，因此，用于播放声音的发声器件被大量应用到现在的智能移动设备之中。
相关技术中的发声器件包括由侧壁围成的盆架、分别固定于所述盆架的振动系统和磁路系统，所述侧壁上设有贯穿其上的泄漏孔，所述发声器件还包括通过背胶贴设的方式固定于所述侧壁并完全覆盖所述泄漏孔的阻尼层。
 技术问题
相关技术的不足在于，为了保证所述阻尼稳固贴设于所述侧壁，需保证背胶宽度值足够大，如此导致阻尼孔尺寸受限，且易造成阻尼分层、起翘。
因此，实有必要提供一种新的发声器件解决上述技术问题。
 技术解决方案
本实用新型的目的在于提供一种可以减小阻尼层的固定结合边宽将泄漏孔开的更大，同时可以改善阻尼层分层、起翘的问题的发声器件。
为达到上述目的，本实用新型提供了一种发声器件，包括由侧壁围成的盆架、分别固定于所述盆架的振动系统和磁路系统、贯穿所述侧壁设置的泄漏孔，所述发声器件还包括注塑结合于所述侧壁的金属片，所述金属片设有与所述泄漏孔对应的通孔，所述发声器件还包括通过激光点焊固定于所述金属片且完全覆盖所述通孔和所述泄漏孔的阻尼层。
优选的，所述金属片为钢片。
优选的，所述发声器件还包括由所述侧壁的外侧凹陷形成的收容槽，所述阻尼层收容于所述收容槽内。
优选的，所述盆架为矩形结构，所述泄漏孔为四个，且两两一组分别设于所述盆架的平行于长轴的相对两个所述侧壁。
优选的，同一组中的两个所述泄漏孔之间间隔设置。
 有益效果
与相关技术相比，本实用新型提供的发声器件将金属片注塑结合于侧壁，金属片设有与泄漏孔对应的通孔，通过激光点焊的方式将阻尼层固定于金属片且完全覆通孔和泄漏孔，这样的方式可以大大减小阻尼层的固定结合边宽，泄漏孔可以开的更大，同时可以改善阻尼层分层、起翘的问题。
 附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本实用新型发声器件的立体结构示意图；
图2为本实用新型发声器件的部分结构分解图；
图3为沿图1中A-A线的剖示图。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请参阅图1-3，本实用新型提供了一种发声器件100，包括盆架1，分别固定于所述盆架1的振动系统2和磁路系统3，金属片4以及阻尼层5。
所述振动系统2固定于所述盆架1，具体的，所述振动系统2包括固定于盆架1的振膜21和驱动所述振膜21振动的音圈22。
所述磁路系统3固定于所述盆架1，所述音圈22通电后与所述磁路系统3产生磁场，从而驱动所述振膜21振动发声。
所述盆架1由侧壁11围成，其形状不限，可以为圆形或矩形等。本实施方式中，以所述盆架1由四个所述侧壁11围成矩形为例说明。
本实施方式中，所述侧壁11包括贯穿其上的泄漏孔111，所述泄漏孔111为四个。四个泄漏孔111两两一组分别设于所述盆架1的平行于长轴的相对两个所述侧壁11。由此，有利于产品的设计与装配。当然，两个所述泄漏孔111也可分别设于所述盆架1的相邻设置的两个所述侧壁11，这也是可行的，其原理与上述一致。同一组中的两个所述泄漏孔111之间间隔设置。该设计便于顺利泄压，保障声学性能。
所述金属片4注塑结合于所述侧壁11。所述金属片4设有与所述泄漏孔111对应的通孔41。优选的，所述金属片4为钢片。
所述阻尼层5通过激光点焊固定于所述金属片4且完全覆盖所述通孔41和所述泄漏孔111。
所述发声器件100还包括由所述侧壁11的外侧凹陷形成收容槽12，所述泄漏孔111与所述收容槽12连通。所述阻尼层5收容于所述收容槽12内。
与相关技术相比，本实用新型提供的发声器件将金属片注塑结合于侧壁，金属片设有与泄漏孔对应的通孔，通过激光点焊的方式将阻尼层固定于金属片且完全覆通孔和泄漏孔，这样的方式可以大大减小阻尼层的固定结合边宽，泄漏孔可以开的更大，同时可以改善阻尼层分层、起翘的问题。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (5)

  1. 一种发声器件，包括由侧壁围成的盆架、分别固定于所述盆架的振动系统和磁路系统、贯穿所述侧壁设置的泄漏孔，其特征在于，所述发声器件还包括注塑结合于所述侧壁的金属片，所述金属片设有与所述泄漏孔对应的通孔，所述发声器件还包括通过激光点焊固定于所述金属片且完全覆盖所述通孔和所述泄漏孔的阻尼层。
  2. 根据权利要求1所述的发声器件，其特征在于，所述金属片为钢片。
  3. 根据权利要求1所述的发声器件，其特征在于，所述发声器件还包括由所述侧壁的外侧凹陷形成的收容槽，所述阻尼层收容于所述收容槽内。
  4. 根据权利要求1所述的发声器件，其特征在于，所述盆架为矩形结构，所述泄漏孔为四个，且两两一组分别设于所述盆架的平行于长轴的相对两个所述侧壁。
  5. 根据权利要求4所述的发声器件，其特征在于，同一组中的两个所述泄漏孔之间间隔设置。
PCT/CN2019/111099 2018-12-27 2019-10-14 发声器件 WO2020134370A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201822226598.2 2018-12-27
CN201822226598.2U CN209526866U (zh) 2018-12-27 2018-12-27 发声器件

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020258260A1 (zh) * 2019-06-28 2020-12-30 瑞声声学科技(深圳)有限公司 一种扬声器
CN213906911U (zh) * 2020-12-16 2021-08-06 瑞声光电科技(常州)有限公司 发声器件
CN112468909B (zh) * 2020-12-18 2022-03-01 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱
CN114449419A (zh) * 2022-01-26 2022-05-06 瑞声光电科技(常州)有限公司 发声器

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JP2005086220A (ja) * 2003-09-04 2005-03-31 Matsushita Electric Ind Co Ltd 電気音響変換器およびこれを用いた電子機器
US20060254852A1 (en) * 2005-05-11 2006-11-16 Yen-Shan Chen Integral audio module
CN107484098A (zh) * 2017-08-07 2017-12-15 瑞声科技(新加坡)有限公司 发声器件及其透气隔离件的装配方法
CN207070326U (zh) * 2017-06-12 2018-03-02 歌尔科技有限公司 一种扬声器模组

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005086220A (ja) * 2003-09-04 2005-03-31 Matsushita Electric Ind Co Ltd 電気音響変換器およびこれを用いた電子機器
US20060254852A1 (en) * 2005-05-11 2006-11-16 Yen-Shan Chen Integral audio module
CN207070326U (zh) * 2017-06-12 2018-03-02 歌尔科技有限公司 一种扬声器模组
CN107484098A (zh) * 2017-08-07 2017-12-15 瑞声科技(新加坡)有限公司 发声器件及其透气隔离件的装配方法

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US20200213715A1 (en) 2020-07-02

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