WO2021000155A1 - 扬声器箱 - Google Patents

扬声器箱 Download PDF

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Publication number
WO2021000155A1
WO2021000155A1 PCT/CN2019/094055 CN2019094055W WO2021000155A1 WO 2021000155 A1 WO2021000155 A1 WO 2021000155A1 CN 2019094055 W CN2019094055 W CN 2019094055W WO 2021000155 A1 WO2021000155 A1 WO 2021000155A1
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WO
WIPO (PCT)
Prior art keywords
speaker box
yoke
fixed
diaphragm
sound emission
Prior art date
Application number
PCT/CN2019/094055
Other languages
English (en)
French (fr)
Inventor
沈凯华
吴军
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
Priority to PCT/CN2019/094055 priority Critical patent/WO2021000155A1/zh
Priority to CN201921022781.9U priority patent/CN210093517U/zh
Publication of WO2021000155A1 publication Critical patent/WO2021000155A1/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
    • 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • This application relates to the field of electro-acoustic conversion, in particular to a speaker box.
  • the speaker box is used as a voice playback device, and its design directly affects the voice performance of mobile communication equipment products. In order to meet the market's demand for thinness and high sound quality, higher requirements are put forward for the design of the speaker box.
  • some sounding monomers adopt a large leakage design.
  • the speaker box does not have corresponding features to deal with the large leakage of the sounding monomer, resulting in excessive leakage of the sounding monomer and the speaker
  • the overall environment setting of the box is not matched, which makes the vocal unit too large amplitude and produces noise.
  • the purpose of the present application is to overcome the above-mentioned technical problems and provide a single-voice speaker box that can provide corresponding features to deal with large leakage.
  • the present application provides a speaker box, which includes an upper shell, a lower shell that cooperates with the upper shell to form an accommodation space, and a sounding unit accommodated in the accommodation space.
  • the accommodating space is divided into a front cavity and a rear cavity.
  • the upper shell includes a top wall facing the sounding monomer, and a supporting wall extending from the top wall to the lower shell.
  • the sound emitting unit includes a basin frame, a vibration system fixed to the basin frame and a magnetic circuit system with a magnetic gap
  • the vibration system It includes a vibrating diaphragm fixed on the frame for vibration and sound, and a voice coil fixed on the side of the diaphragm close to the magnetic circuit system, the voice coil extending into the magnetic gap
  • the magnetic circuit system includes a magnetic yoke fixed on the side of the basin frame away from the diaphragm, and a magnet part fixed to the magnetic yoke, the magnetic gap is formed in the magnet part
  • the basin frame includes A ring-shaped body portion that fixes the diaphragm, and a support portion extending from the body portion toward the yoke, the yoke is fixed to the support portion and forms a leakage port spaced from the body portion, so The leakage port is in communication with the magnetic gap
  • the speaker box further includes a damping mesh, the damping mesh
  • the magnet part includes a main magnet part and auxiliary magnet parts located on opposite sides of the main magnet part, and the auxiliary magnet part is sandwiched between the magnetic Between the yoke and the body part, the support part is located on both sides of the auxiliary magnet part.
  • the damping mesh includes a main body part covering the yoke, and extending from the edge of the main body part toward the diaphragm to cover the leakage
  • the main body is rectangular, and the orthographic projection of the sound-emitting unit in the direction of its vibration system completely falls into the main body.
  • the damping mesh is an integrally formed three-dimensional mesh.
  • the speaker box provided by the present application is provided with a mesh cloth to wrap the sound-producing monomer.
  • the mesh cloth isolates the gap from the outside air, and uses the mesh cloth itself to provide damping. This feature reduces the leakage of the gap, reduces the amplitude of the vocal unit, avoids noise, and improves the acoustic performance of the speaker box.
  • Figure 1 is a schematic diagram of the three-dimensional structure of the speaker box provided by this application.
  • Figure 2 is a schematic diagram of an exploded structure of the speaker box shown in Figure 1;
  • Figure 3 is a cross-sectional view taken along line III-III in Figure 1;
  • Figure 4 is a cross-sectional view taken along line IV-IV in Figure 1;
  • Figure 5 is an assembly diagram of the diaphragm, the basin frame and the magnetic yoke provided by this application.
  • Figure 1 is a schematic diagram of the three-dimensional structure of the speaker box provided by this application
  • Figure 2 is a schematic diagram of the exploded structure of the speaker box shown in Figure 1
  • Figure 3 is a diagram along the line III-III in Figure 1 Sectional view
  • Figure 4 is a sectional view taken along the line IV-IV in Figure 1
  • Figure 5 is a diagram of the assembly of the diaphragm, the basin frame and the yoke provided by this application.
  • the present application provides a speaker box 100 that includes an upper shell 1, a lower shell 2, a sound emitting monomer 3, a damping mesh 4, a front cavity 40 and a rear cavity 50.
  • the upper shell 1 cooperates with the lower shell 2 to form an accommodation space, the sound emitting monomer 3 is accommodated in the accommodation space, and the sound emitting monomer divides the accommodation space into the front cavity 40 and the rear cavity. Cavities 50.
  • the upper shell 1 includes a top wall 11 directly opposite to the sounding monomer 3, a supporting wall 12 extending from the top wall 11 toward the lower shell 2, and the sounding monomer 3 is fixed on the
  • the supporting wall 12 is spaced apart from the top wall 11.
  • the supporting wall 12 is used to fix the sounding monomer 3 and the sounding monomer 3 and the supporting wall 12 are fixed by glue bonding, so that the sounding monomer 3 and the supporting wall 12 can be firmly formed The connection structure.
  • the sounding unit 3 includes a basin frame 31, a vibration system 32 fixed to the basin frame 31, and a magnetic circuit system 33 with a magnetic gap B.
  • the vibration system 32 includes a device fixed to the basin frame 31.
  • the voice coil 322 fixed to the side of the diaphragm 321 close to the magnetic circuit system 33, and the elastic support member 323 supporting the voice coil 322, the voice coil 322 extends to all
  • the magnetic circuit system 33 includes a yoke 332 fixed on the side of the frame 31 away from the diaphragm 321 and a magnet portion 331 fixed to the yoke 332.
  • the magnetic gap B is formed in the magnet part 331.
  • the basin frame 31 includes an annular body portion 311 for fixing the diaphragm 321, and a support portion 312 extending from the body portion 311 toward the yoke 332, the yoke 332 and the support portion 312
  • the leakage port A is fixed and spaced from the main body 311 to form a leakage port A.
  • the magnet portion 331 includes a main magnet portion 3311 and a sub-magnet portion 3312 located on opposite sides of the main magnet portion 3311.
  • the sub-magnet portion 3312 is sandwiched between the yoke 332 and the body portion 311,
  • the supporting portion 312 is located on both sides of the auxiliary magnet portion 3312, and the magnetic gap B is formed between the main magnet portion 3311 and the auxiliary magnet portion 3312. More preferably, the magnetic gap B is in communication with the leakage port A.
  • the damping mesh cloth 4 is an integrally formed three-dimensional mesh cloth, the damping mesh cloth 4 is arranged above the supporting wall 12 and covers the sound emitting monomer 3, and the damping mesh cloth 4 protects the sound emitting monomer 3 is separated from the rear cavity 50.
  • the damping mesh 4 includes a main body 41 covering the yoke 332, an extension 42 extending from the edge of the main body 41 in the direction of the diaphragm 321 to cover the leakage port A, and a connection At the fixed portion 43 fixed to the extension portion 42 and fixed to the support portion 12, the leakage port A is separated from the rear cavity 50 by the extension portion 42.
  • the main body portion 41 is rectangular, and the orthographic projection of the sound emitting unit 3 along its vibration direction completely falls into the main body portion 41.
  • Such a structure ensures that the leakage port A can be damped.
  • the mesh cloth 4 is completely wrapped, and the damping of the damping mesh cloth 4 is used to reduce the leakage of the sound emitting unit 3 through the gap 4, thereby reducing the amplitude of the sound emitting unit 3 and avoiding the speaker box 100 Produce noise.
  • the speaker box provided by the present application is provided with a mesh cloth to wrap the sound-producing monomer.
  • the mesh cloth isolates the gap from the outside air, and uses the mesh cloth itself to provide damping. This feature reduces the leakage of the gap, reduces the amplitude of the vocal unit, avoids noise, and improves the acoustic performance of the speaker box.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本申请提供了一种扬声器箱。所述扬声器箱，包括上壳、与所述上壳配合形成收容空间的下壳及收容于所述收容空间内的发声单体，所述发声单体将所述收容空间分隔成前腔与后腔，所述上壳包括与所述发声单体正对的顶壁、自所述顶壁向所述下壳方向延伸形成的支撑壁，所述发声单体固持于所述支撑壁并与所述顶壁间隔设置，所述扬声器箱还包括阻尼网布，所述阻尼网布盖设于所述支撑壁上方并覆盖所述发声单体，所述阻尼网布将所述发声单体与所述后腔隔开。与相关技术相比，本申请提供的扬声器箱可以有效改善发声单体泄露大的问题，改善所述扬声器箱的声学性能。

Description

扬声器箱 技术领域
本申请涉及电声转换领域，尤其涉及一种扬声器箱。
 背景技术
近年来随着移动通信技术的快速发展，消费者越来越多地使用带有语音功能的移动通讯设备，例如：便携式电话、掌上游戏机及手提电脑等。扬声器箱作为语音的播放装置，其设计好坏直接影响移动通讯设备产品的语音性能。为了满足市场对于薄型化及高音质的需求，对扬声器箱的设计提出了更高的要求。
目前一些发声单体采用大泄漏设计，将该大泄露设计的发声单体装配到扬声器箱时，由于扬声器箱没有设计相应的特征来应对大泄漏的发声单体，导致发声单体泄漏过大和扬声器箱的整体环境设置不匹配，使发声单体振幅过大而产生杂音。
因此，有必要提供一种新的扬声器箱以解决上述缺陷。
 技术问题
本申请的目的是克服上述技术问题，提供一种能够提供相应的特征来应对大泄漏的发声单体扬声器箱。
 技术解决方案
为了实现上述目的，本申请提供一种扬声器箱，包括上壳、与所述上壳配合形成收容空间的下壳及收容于所述收容空间内的发声单体，所述发声单体将所述收容空间分隔成前腔与后腔，所述上壳包括与所述发声单体正对的顶壁、自所述顶壁向所述下壳方向延伸形成的支撑壁，所述发声单体固持于所述支撑壁并与所述顶壁间隔设置，其特征在于，所述发声单体包括盆架、以及固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固设于所述盆架的用于振动发声的振膜、以及固定于所述振膜靠近所述磁路系统的一侧的音圈，所述音圈延伸至所述磁间隙内，所述磁路系统包括固设于所述盆架远离所述振膜一侧的磁轭、以及固定于所述磁轭的磁体部，所述磁间隙形成于所述磁体部内，所述盆架包括固定所述振膜的环状的本体部、以及自所述本体部朝所述磁轭延伸的支撑部，所述磁轭与所述支撑部固定并与所述本体部间隔形成泄露口，所述泄露口与所述磁间隙连通，所述扬声器箱还包括阻尼网布，所述阻尼网布盖设于所述支撑壁上方并覆盖所述发声单体，所述阻尼网布将所述发声单体与所述后腔隔开。
在本申请提供的扬声器箱的一种较佳实施例中，所述磁体部包括主磁体部以及位于所述主磁体部相对两侧的副磁体部，所述副磁体部夹设于所述磁轭与所述本体部之间，所述支撑部位于所述副磁体部两侧。
在本申请提供的扬声器箱的一种较佳实施例中，所述阻尼网布包括覆盖于所述磁轭的主体部、自所述主体部边缘向所述振膜方向延伸以覆盖所述泄露口的延伸部及连接于所述延伸部并与所述支撑部固接的固定部，所述泄露口通过所述延伸部与所述后腔隔开。
在本申请提供的扬声器箱的一种较佳实施例中，所述主体部呈矩形，所述发声单体沿其振动系统方向的正投影完全落入所述主体部。
在本申请提供的扬声器箱的一种较佳实施例中，所述阻尼网布为一体成型的立体网布。
 有益效果
与相关技术相比，本申请提供的扬声器箱通过设置网布将所述发声单体包住，具体的，所述网布将所述间隙隔离于外界空气，利用所述网布本身自带阻尼的特点，减少所述间隙的泄露，降低所述发声单体的振幅，避免产生杂音，改善所述扬声器箱的声学性能。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所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申请的一些实施例，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为本申请提供的扬声器箱的立体结构示意图；
图2为图1所示的扬声器箱的分解结构示意图；
图3为图1中沿III-III线的剖视图；
图4为图1中沿IV-IV线的剖视图；
图5为本申请提供的振膜、盆架及磁轭的组配图。
 本发明的最佳实施方式
下面将对本申请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申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，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，都属于本申请保护的范围。
请同时参阅图1至图5，图1为本申请提供的扬声器箱的立体结构示意图；图2为图1所示的扬声器箱的分解结构示意图；图3为图1中沿III-III线的剖视图；图4为图1中沿IV-IV线的剖视图；图5为本申请提供的振膜、盆架及磁轭的组配图。本申请提供一种扬声器箱100，所述扬声器箱100包括上壳1、下壳2、发声单体3、阻尼网布4、前腔40及后腔50。
所述上壳1配合所述下壳2形成收容空间，所述发声单体3收容于所述收容空间内且所述发声单体将所述收容空间分割成所述前腔40和所述后腔50。
所述上壳1包括与所述发声单体3正对的顶壁11、自所述顶壁11向所述下壳2方向延伸形成的支撑壁12，所述发声单体3固持于所述支撑壁12并与所述顶壁11间隔设置。所述支撑壁12用于固接所述发声单体3且所述发声单体3和所支撑壁12通过胶水粘接固定，这样可以使所述发声单体3和所述支撑壁12形成牢固的连接结构。
所述发声单体3包括盆架31、以及固定于所述盆架31的振动系统32和具有磁间隙B的磁路系统33，所述振动系统32包括固设于所述盆架31的用于振动发声的振膜321、固定于所述振膜321靠近所述磁路系统33的一侧的音圈322及支持所述音圈322的弹性支撑组件323，所述音圈322延伸至所述磁间隙B内，所述磁路系统33包括固设于所述盆架31远离所述振膜321一侧的磁轭332以及固定于所述磁轭332的磁体部331，所述磁间隙B形成于所述磁体部331内。
所述盆架31包括固定所述振膜321的环状的本体部311、以及自所述本体部311朝所述磁轭332延伸的支撑部312，所述磁轭332与所述支撑部312固定并与所述本体部311间隔形成泄露口A。
所述磁体部331包括主磁体部3311以及位于所述主磁体部3311相对两侧的副磁体部3312，所述副磁体3312部夹设于所述磁轭332与所述本体部311之间，所述支撑部312位于所述副磁体部3312两侧，所述磁间隙B形成于所述主磁体部3311和所述副磁体部3312之间。更优的，所述磁间隙B与所述泄露口A连通。
所述阻尼网布4为一体成型的立体网布，所述阻尼网布4盖设于所述支撑壁12上方并覆盖所述发声单体3，所述阻尼网布4将所述发声单体3与所述后腔50隔开。具体的，所述阻尼网布4包括覆盖于所述磁轭332的主体部41、自所述主体部41边缘向所述振膜321方向延伸以覆盖所述泄露口A的延伸部42及连接于所述延伸部42并与所述支撑部12固接的固定部43，所述泄露口A通过所述延伸部42与所述后腔50隔开。
更优的，所述主体部41呈矩形，所述发声单体3沿其振动方向的正投影完全落入所述主体部41内，这样的结构保证了所述泄露口A可以被所述阻尼网布4完全包裹，利用所述阻尼网布4本身的阻尼，降低所述发声单体3通过所述间隙4的泄露量，从而降低所述发声单体3的振幅，避免所述扬声器箱100产生杂音。
与相关技术相比，本申请提供的扬声器箱通过设置网布将所述发声单体包住，具体的，所述网布将所述间隙隔离于外界空气，利用所述网布本身自带阻尼的特点，减少所述间隙的泄露，降低所述发声单体的振幅，避免产生杂音，改善所述扬声器箱的声学性能。
以上所述仅为本申请的实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (5)

  1. 一种扬声器箱，包括上壳、与所述上壳配合形成收容空间的下壳及收容于所述收容空间内的发声单体，所述发声单体将所述收容空间分隔成前腔与后腔，所述上壳包括与所述发声单体正对的顶壁、自所述顶壁向所述下壳方向延伸形成的支撑壁，所述发声单体固持于所述支撑壁并与所述顶壁间隔设置，其特征在于，所述发声单体包括盆架、以及固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固设于所述盆架的用于振动发声的振膜、以及固定于所述振膜靠近所述磁路系统的一侧的音圈，所述音圈延伸至所述磁间隙内，所述磁路系统包括固设于所述盆架远离所述振膜一侧的磁轭、以及固定于所述磁轭的磁体部，所述磁间隙形成于所述磁体部内，所述盆架包括固定所述振膜的环状的本体部、以及自所述本体部朝所述磁轭延伸的支撑部，所述磁轭与所述支撑部固定并与所述本体部间隔形成泄露口，所述泄露口与所述磁间隙连通，所述扬声器箱还包括阻尼网布，所述阻尼网布盖设于所述支撑壁上方并覆盖所述发声单体，所述阻尼网布将所述发声单体与所述后腔隔开。
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述磁体部包括主磁体部以及位于所述主磁体部相对两侧的副磁体部，所述副磁体部夹设于所述磁轭与所述本体部之间，所述支撑部位于所述副磁体部两侧。
  3. 根据权利要求1所述的扬声器箱，其特征在于，所述阻尼网布包括覆盖于所述磁轭的主体部、自所述主体部边缘向所述振膜方向延伸以覆盖所述泄露口的延伸部及连接于所述延伸部并与所述支撑部固接的固定部，所述泄露口通过所述延伸部与所述后腔隔开。
  4. 根据权利要求3所述的扬声器箱，其特征在于，所述主体部呈矩形，所述发声单体沿其振动系统方向的正投影完全落入所述主体部。
  5. 根据权利要求1所述的扬声器箱，其特征在于，所述阻尼网布为一体成型的立体网布。
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CN211959507U (zh) * 2020-03-09 2020-11-17 瑞声科技(新加坡)有限公司 一种扬声器
CN213906845U (zh) * 2020-12-18 2021-08-06 瑞声光电科技(常州)有限公司 扬声器箱

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CN207283798U (zh) * 2017-08-30 2018-04-27 歌尔科技有限公司 扬声器单体以及电子设备
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