WO2021000119A1 - Loudspeaker - Google Patents

Loudspeaker Download PDF

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Publication number
WO2021000119A1
WO2021000119A1 PCT/CN2019/094017 CN2019094017W WO2021000119A1 WO 2021000119 A1 WO2021000119 A1 WO 2021000119A1 CN 2019094017 W CN2019094017 W CN 2019094017W WO 2021000119 A1 WO2021000119 A1 WO 2021000119A1
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WO
WIPO (PCT)
Prior art keywords
holes
layer
hole
same
row
Prior art date
Application number
PCT/CN2019/094017
Other languages
French (fr)
Chinese (zh)
Inventor
邱志强
汪晶晶
刘莎莎
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/CN2019/094017 priority Critical patent/WO2021000119A1/en
Priority to CN201910591137.1A priority patent/CN110536217B/en
Publication of WO2021000119A1 publication Critical patent/WO2021000119A1/en

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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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • 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
    • H04R9/04—Construction, mounting, or centering of coil

Definitions

  • This application relates to the field of electro-acoustic conversion, in particular to a speaker.
  • Related art speakers include a basin frame and a vibration system and a magnetic circuit system respectively fixed to the basin frame.
  • the vibration system includes a diaphragm fixed to the basin frame and a voice coil that drives the diaphragm to vibrate and produce sound.
  • the membrane includes the dome.
  • the speakers of the related technology mostly use ordinary aluminum or wooden dome, and the dome is smooth on both ends of the vibration direction.
  • the speaker box When the speaker of the related technology is placed in the speaker box, the speaker box has a clear front. Cavity resonance, and the energy is too high near the high frequency resonance, usually significantly amplify distortion and noise.
  • the technical problem to be solved by this application is to provide a speaker that can effectively reduce the airflow noise in the front cavity and improve the performance and sound quality.
  • the present application provides a loudspeaker including a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system.
  • the vibration system includes a diaphragm fixed to the basin frame and a driving station.
  • the diaphragm In the voice coil with a vibrating diaphragm that produces sound, the diaphragm includes a dome, and both ends of the dome in a vibration direction are in a microporous structure.
  • the material of the dome top is foamed metal.
  • the dome includes a first layer close to the voice coil, a second layer far from the voice coil, and an intermediate layer connecting the first layer and the second layer.
  • the first layer and The material of the second layer is foamed metal, and the intermediate layer is an aluminum foil layer.
  • the foamed metal is foamed aluminum or foamed nickel.
  • the first layer includes a first body portion and a plurality of first through holes penetrating the first body portion along the vibration direction
  • the second layer includes a second body portion and penetrating the first body portion along the vibration direction.
  • the through holes are arranged oppositely.
  • the plurality of first through holes and the plurality of second through holes are all arranged in an array, and the spacing between the first through holes in each row is the same, and the distance between the second through holes in each row The distance between each row is the same, the distance between the first through holes in each row is the same, and the distance between the second through holes in each row is the same.
  • the first layer further includes a plurality of third through holes penetrating the first body portion along the vibration direction
  • the second layer further includes a plurality of fourth through holes penetrating the second body portion along the vibration direction.
  • a through hole, the diameter of the third through hole is the same as that of the fourth through hole, and the diameter of the third through hole and the fourth through hole is smaller than that of the first through hole and the second through hole. The aperture of the through hole.
  • the plurality of third through holes and the plurality of fourth through holes are all arranged in an array, and the spacing between the third through holes in each row is the same, and the fourth through holes in each row The distance between each row is the same, the distance between the third through holes in each row is the same, and the distance between the fourth through holes in each row is the same.
  • the cross section of the dome in the vibration direction is rectangular, and along the length direction of the dome, the first through holes in each row and the third through holes in each row are alternately arranged in turn, The second through holes and the fourth through holes in each column are alternately arranged in turn.
  • the first through holes in each row and the third through holes in each row are alternately arranged in turn.
  • the second through holes and the fourth through holes in each row are alternately arranged in sequence.
  • the speaker of the present application is provided with a microporous structure at both ends of the dome in the vibration direction. Because the microporous structure has greater acoustic damping, it can effectively reduce the energy of the front cavity resonance peak. Reduce distortion while reducing the amplifying effect of high-frequency resonance on noise; at the same time, the microporous structure can improve the airflow direction in the speaker, so that the airflow can flow through the microporous structure in addition to the conventional path, and the microporous structure The air in the gap has strong damping and can also be used to absorb high-frequency noise.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a speaker provided by Embodiment 1 of the application;
  • FIG. 2 is a schematic cross-sectional view of the three-dimensional structure of the speaker shown in FIG. 1;
  • Figure 3 is an enlarged view of part A of the speaker shown in Figure 2;
  • FIG. 4 is an exploded schematic diagram of the three-dimensional structure of the dome of the speaker provided in Embodiment 1 of the application;
  • FIG. 5 is a schematic cross-sectional view of the three-dimensional structure of the speaker provided in the second embodiment of the application.
  • Fig. 6 is an enlarged view of part B of the speaker shown in Fig. 5.
  • the present application provides a speaker 100.
  • the speaker 100 includes a basin frame 11, a vibration system 13 and a magnetic circuit system 15 respectively fixed to the basin frame 11.
  • the vibration system 13 includes a diaphragm 131 fixed to the frame 11 and a voice coil 133 that drives the diaphragm 131 to vibrate and produce sound.
  • the diaphragm 131 includes a dome 1311, a vibrating portion 1313 connected to the dome 1311, a folding ring portion 1315 extending outward from the vibrating portion 1313, and a fixing that continues to extend outward from the folding ring portion 1315. ⁇ 1317.
  • the fixing portion 1317 is fixedly connected to the basin frame 11, so that the diaphragm 131 is fixed to the basin frame 11.
  • the vibrating portion 1313 is connected to the dome 1311 in the vibration direction, and in this embodiment, the vibrating portion 1313 has a ring shape, and the vibration portion 1313 is connected to the dome 1311. The peripheral edge is fixedly connected.
  • the cross section of the dome 1311 in the vibration direction is rectangular, and the two ends of the dome 1311 in the vibration direction have a microporous structure. Because the microporous structure has greater acoustic damping, it can effectively reduce the energy of the front cavity resonance peak, and reduce distortion while reducing the amplification effect of high-frequency resonance on noise. At the same time, the microporous structure can also improve the speaker 100
  • the airflow direction inside allows the airflow to flow through the microporous structure in addition to the conventional path, and the air in the internal gap of the microporous structure has strong damping, which can also be used to absorb high-frequency noise.
  • the dome 1311 includes a first layer 1321 close to the voice coil 133, a second layer 1323 far from the voice coil 133, and a second layer 1323 connected to the first Layer 1321 and the middle layer 1325 of the second layer 1323.
  • the material of the first layer 1321 and the second layer 1323 is foamed metal
  • the intermediate layer 1325 is an aluminum foil layer.
  • the foamed metal includes foamed aluminum, foamed nickel, etc.
  • the foamed metal is foamed aluminum.
  • foamed metal as the material of the first layer 1321 and the second layer 1323 has the characteristics of a microporous structure, which has the technical effect of improving the acoustic performance of the speaker 100.
  • the first layer 1321 includes a first layer body portion 1341, a plurality of first through holes 1343 penetrating the first body portion 1341 along the vibration direction, and also penetrating the first body along the vibration direction. A plurality of third through holes 1345 of the portion 1341.
  • the second layer 1323 includes a second body portion 1361, a plurality of second through holes 1363 penetrating the second body portion 1361 along the vibration direction, and a plurality of fourth holes penetrating the second body portion 1361 along the vibration direction. Through hole 1365.
  • the cross-sectional shape of the first through hole 1343, the second through hole 1363, the third through hole 1345, and the fourth through hole 1365 may be circular, triangular, oval, In this embodiment, the cross-sectional shape of the through hole is a circle.
  • the aperture of the first through hole 1343 is the same as the aperture of the second through hole 1363, and each of the first through holes 1343 is arranged opposite to one of the second through holes 1363 in the vibration direction. .
  • the plurality of first through holes 1343 and the plurality of second through holes 1363 are all arranged in an array, and the spacing between the first through holes 1343 in each row is the same, and the second through holes 1363 in each row The distance between each row is the same, the distance between the first through holes 1343 in each row is the same, and the distance between the second through holes 1363 in each row is the same.
  • the aperture of the third through hole 1345 is the same as the aperture of the fourth through hole 1365, and the aperture of the third through hole 1345 and the fourth through hole 1365 is smaller than that of the first through hole 1343 and the The diameter of the second through hole 1363.
  • the plurality of third through holes 1345 and the plurality of fourth through holes 1365 are all arranged in an array, and the spacing between the third through holes 1345 in each row is the same, and the fourth through holes 1365 in each row The distance between each row is the same, and the distance between the third through holes 1345 in each row is the same, and the distance between the fourth through holes 1365 in each row is the same.
  • each column of the first through holes 1343 and each column of the third through holes 1345 are alternately arranged in turn, each column of the second through holes 1363 and each column of the first through holes 1363
  • the four through holes 1365 are arranged alternately in sequence; along the width direction of the dome 1311, each row of the first through holes 1343 and each row of the third through holes 1345 are alternately arranged in sequence, and each row of the second through holes 1363
  • the fourth through holes 1365 are arranged alternately with each row.
  • the above-mentioned aperture size and positional relationship between the first through hole 1343, the second through hole 1345, the third through hole 1363, and the fourth through hole 1365 are only one embodiment of the present application, and this arrangement can be adjusted to Adjust the noise in a certain frequency band.
  • the first layer 1321 and the second layer 1323 can also be provided with more fifth through holes, sixth through holes, etc., and the positions of the through holes are arranged Can also be adjusted.
  • the structure of the speaker 200 provided in this embodiment is basically the same as that of the speaker 100 provided in the first embodiment, and the difference lies in the structure of the dome 2311.
  • the dome 2311 is a plate-shaped structure made of foamed metal materials.
  • the foamed metal includes foamed aluminum, foamed nickel, etc.
  • the foamed metal is foamed nickel.
  • the speaker of the present application is provided with a microporous structure at both ends of the dome in the vibration direction. Because the microporous structure has greater acoustic damping, it can effectively reduce the energy of the front cavity resonance peak. Reduce distortion while reducing the amplifying effect of high-frequency resonance on noise; at the same time, the microporous structure can improve the flow direction of the airflow in the speaker, so that the airflow can flow through the microporous structure in addition to the conventional path, and the inside of the microporous structure The air in the gap has strong damping and can also be used to absorb high-frequency noise.

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

Abstract

Provided is a loudspeaker, comprising a basket, and a vibration system and a magnetic circuit system respectively fixed to the basket, wherein the vibration system comprises a diaphragm fixed to the basket, and a voice coil driving the diaphragm to generate a sound by means of vibration; the diaphragm comprises a dome; and two ends, in a vibration direction, of the dome are of a microporous structure. Compared with the related technology, in the loudspeaker provided in the present application, the two ends, in the vibration direction, of the dome are configured to be of a microporous structure, such that when the loudspeaker is assembled inside a loudspeaker enclosure, the airflow noise in a front cavity of the loudspeaker enclosure can be effectively reduced, and the aim of improving the performance and tone is thus achieved.

Description

扬声器speaker 技术领域Technical field
本申请涉及电声转换领域，尤其涉及一种扬声器。This application relates to the field of electro-acoustic conversion, in particular to a speaker.
背景技术Background technique
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，用于播放声音的扬声器被大量应用到现在的智能移动设备之中。With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among many mobile devices, mobile phones are undoubtedly the most common and portable mobile terminal devices. At present, the functions of mobile phones are extremely diverse, one of which is high-quality music functions. Therefore, speakers for playing sound are widely used in current smart mobile devices.
技术问题technical problem
相关技术的扬声器包括盆架及分别固定于盆架的振动***及磁路***，所述振动***包括固定于所述盆架的振膜及驱动所述振膜振动发声的音圈，所述振膜包括球顶。Related art speakers include a basin frame and a vibration system and a magnetic circuit system respectively fixed to the basin frame. The vibration system includes a diaphragm fixed to the basin frame and a voice coil that drives the diaphragm to vibrate and produce sound. The membrane includes the dome.
然而，相关技术的扬声器多采用普通的铝制或木质球顶，其球顶在振动方向的两端均为光滑表面，将相关技术的扬声器放置于扬声器箱内时，使得扬声器箱存在明显的前腔谐振，且在高频谐振附近能量过高，通常会明显放大失真及噪声。However, the speakers of the related technology mostly use ordinary aluminum or wooden dome, and the dome is smooth on both ends of the vibration direction. When the speaker of the related technology is placed in the speaker box, the speaker box has a clear front. Cavity resonance, and the energy is too high near the high frequency resonance, usually significantly amplify distortion and noise.
因此，有必要提供一种新的扬声器来解决上述问题。Therefore, it is necessary to provide a new speaker to solve the above-mentioned problems.
技术解决方案Technical solutions
本申请要解决的技术问题是提供一种可以有效降低前腔内的气流噪声，能够改善性能和音质的扬声器。The technical problem to be solved by this application is to provide a speaker that can effectively reduce the airflow noise in the front cavity and improve the performance and sound quality.
为解决上述技术问题，本申请提供了一种扬声器，包括盆架、分别固定于所述盆架的振动***及磁路***，所述振动***包括固定于所述盆架的振膜、驱动所述振膜振动发声的音圈，所述振膜包括球顶，所述球顶沿振动方向的两端为多微孔结构。In order to solve the above technical problems, the present application provides a loudspeaker including a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system. The vibration system includes a diaphragm fixed to the basin frame and a driving station. In the voice coil with a vibrating diaphragm that produces sound, the diaphragm includes a dome, and both ends of the dome in a vibration direction are in a microporous structure.
优选的，所述球顶的材料为发泡金属。Preferably, the material of the dome top is foamed metal.
优选的，所述球顶包括靠近所述音圈的第一层、远离所述音圈的第二层及连接所述第一层和所述第二层的中间层，所述第一层及所述第二层的材料为发泡金属，所述中间层为铝箔层。Preferably, the dome includes a first layer close to the voice coil, a second layer far from the voice coil, and an intermediate layer connecting the first layer and the second layer. The first layer and The material of the second layer is foamed metal, and the intermediate layer is an aluminum foil layer.
优选的，所述发泡金属为发泡铝或发泡镍。Preferably, the foamed metal is foamed aluminum or foamed nickel.
优选的，所述第一层包括第一本体部及沿振动方向贯穿所述第一本体部的多个第一通孔，所述第二层包括第二本体部及沿振动方向贯穿所述第二本体部的多个第二通孔，所述第一通孔的孔径与所述第二通孔的孔径相同，且每个所述第一通孔在振动方向上均与一个所述第二通孔相对设置。Preferably, the first layer includes a first body portion and a plurality of first through holes penetrating the first body portion along the vibration direction, and the second layer includes a second body portion and penetrating the first body portion along the vibration direction. A plurality of second through holes in the two body parts, the aperture of the first through hole is the same as the aperture of the second through hole, and each of the first through holes is connected to one of the second through holes in the vibration direction. The through holes are arranged oppositely.
优选的，多个所述第一通孔及多个所述第二通孔均呈阵列排布，且每列所述第一通孔之间的间距相同，每列所述第二通孔之间的间距相同，每行所述第一通孔之间的间距相同，每行所述第二通孔之间的间距相同。Preferably, the plurality of first through holes and the plurality of second through holes are all arranged in an array, and the spacing between the first through holes in each row is the same, and the distance between the second through holes in each row The distance between each row is the same, the distance between the first through holes in each row is the same, and the distance between the second through holes in each row is the same.
优选的，所述第一层还包括沿振动方向贯穿所述第一本体部的多个第三通孔，所述第二层还包括沿振动方向贯穿所述第二本体部的多个第四通孔，所述第三通孔的孔径与所述第四通孔的孔径相同，且所述第三通孔和所述第四通孔的孔径小于所述第一通孔和所述第二通孔的孔径。Preferably, the first layer further includes a plurality of third through holes penetrating the first body portion along the vibration direction, and the second layer further includes a plurality of fourth through holes penetrating the second body portion along the vibration direction. A through hole, the diameter of the third through hole is the same as that of the fourth through hole, and the diameter of the third through hole and the fourth through hole is smaller than that of the first through hole and the second through hole. The aperture of the through hole.
优选的，多个所述第三通孔及多个所述第四通孔均呈阵列排布，且每列所述第三通孔之间的间距相同，每列所述第四通孔之间的间距相同，每行所述第三通孔之间的间距相同，每行所述第四通孔之间的间距相同。Preferably, the plurality of third through holes and the plurality of fourth through holes are all arranged in an array, and the spacing between the third through holes in each row is the same, and the fourth through holes in each row The distance between each row is the same, the distance between the third through holes in each row is the same, and the distance between the fourth through holes in each row is the same.
优选的，所述球顶在振动方向上的横截面呈矩形，沿所述球顶的长度方向，每列所述第一通孔与每列所述第三通孔依次交替设置，每列所述第二通孔与每列所述第四通孔依次交替设置，沿所述球顶的宽度方向，每行所述第一通孔与每行所述第三通孔依次交替设置，每行所述第二通孔与每行所述第四通孔依次交替设置。Preferably, the cross section of the dome in the vibration direction is rectangular, and along the length direction of the dome, the first through holes in each row and the third through holes in each row are alternately arranged in turn, The second through holes and the fourth through holes in each column are alternately arranged in turn. Along the width direction of the dome, the first through holes in each row and the third through holes in each row are alternately arranged in turn. The second through holes and the fourth through holes in each row are alternately arranged in sequence.
有益效果Beneficial effect
与相关技术相比，本申请的扬声器通过设置所述球顶沿振动方向的两端为多微孔结构，因多微孔结构具备较大的声阻尼，可以有效降低前腔谐振峰的能量，降低失真的同时减小高频谐振对噪声的放大作用；同时，多微孔结构可以改善扬声器内的气流流向，使得气流除了常规路径外还可以经多微孔结构流动，且多微孔结构内部间隙内的空气具有较强的阻尼，同样可以用于吸收高频噪声。Compared with the related art, the speaker of the present application is provided with a microporous structure at both ends of the dome in the vibration direction. Because the microporous structure has greater acoustic damping, it can effectively reduce the energy of the front cavity resonance peak. Reduce distortion while reducing the amplifying effect of high-frequency resonance on noise; at the same time, the microporous structure can improve the airflow direction in the speaker, so that the airflow can flow through the microporous structure in addition to the conventional path, and the microporous structure The air in the gap has strong damping and can also be used to absorb high-frequency noise.
附图说明Description of the drawings
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：In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:
图1为本申请实施例一提供的扬声器的立体结构示意图；FIG. 1 is a schematic diagram of a three-dimensional structure of a speaker provided by Embodiment 1 of the application;
图2为图1所示的扬声器的立体结构剖面示意图；2 is a schematic cross-sectional view of the three-dimensional structure of the speaker shown in FIG. 1;
图3为图2所示的扬声器的A部分放大图；Figure 3 is an enlarged view of part A of the speaker shown in Figure 2;
图4为本申请实施例一提供的扬声器的球顶的立体结构分解示意图；4 is an exploded schematic diagram of the three-dimensional structure of the dome of the speaker provided in Embodiment 1 of the application;
图5为本申请实施例二提供的扬声器的立体结构剖面示意图；FIG. 5 is a schematic cross-sectional view of the three-dimensional structure of the speaker provided in the second embodiment of the application;
图6为图5所示的扬声器的B部分放大图。Fig. 6 is an enlarged view of part B of the speaker shown in Fig. 5.
本发明的最佳实施方式The best mode of the invention
下面将结合本申请实施例中的附图，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。The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.
实施例一Example one
请结合参阅图1至图3，本申请提供了一种扬声器100，所述扬声器100包括盆架11、分别固定于所述盆架11的振动***13及磁路***15。Please refer to FIGS. 1 to 3 in combination. The present application provides a speaker 100. The speaker 100 includes a basin frame 11, a vibration system 13 and a magnetic circuit system 15 respectively fixed to the basin frame 11.
所述振动***13包括固定于所述盆架11的振膜131及驱动所述振膜131振动发声的音圈133。The vibration system 13 includes a diaphragm 131 fixed to the frame 11 and a voice coil 133 that drives the diaphragm 131 to vibrate and produce sound.
所述振膜131包括球顶1311、与所述球顶1311连接的振动部1313、自所述振动部1313向外延伸的折环部1315及自所述折环部1315继续向外延伸的固定部1317。所述固定部1317与所述盆架11固定连接，从而使得所述振膜131固定于所述盆架11。The diaphragm 131 includes a dome 1311, a vibrating portion 1313 connected to the dome 1311, a folding ring portion 1315 extending outward from the vibrating portion 1313, and a fixing that continues to extend outward from the folding ring portion 1315.部1317. The fixing portion 1317 is fixedly connected to the basin frame 11, so that the diaphragm 131 is fixed to the basin frame 11.
需要说明的是，所述振动部1313在振动方向上与所述球顶1311连接，且在本实施方式中，所述振动部1313呈环状，所述振动部1313与所述球顶1311的周缘固定连接。It should be noted that the vibrating portion 1313 is connected to the dome 1311 in the vibration direction, and in this embodiment, the vibrating portion 1313 has a ring shape, and the vibration portion 1313 is connected to the dome 1311. The peripheral edge is fixedly connected.
所述球顶1311在振动方向上的横截面呈矩形，且所述球顶1311沿振动方向的两端为多微孔结构。因多微孔结构具备较大的声阻尼，可以有效降低前腔谐振峰的能量，降低失真的同时减小高频谐振对噪声的放大作用，同时，多微孔结构还可以改善所述扬声器100内的气流流向，使得气流除了常规路径外还可以经多微孔结构流动，且多微孔结构内部间隙内的空气具有较强的阻尼，同样可以用于吸收高频噪声。The cross section of the dome 1311 in the vibration direction is rectangular, and the two ends of the dome 1311 in the vibration direction have a microporous structure. Because the microporous structure has greater acoustic damping, it can effectively reduce the energy of the front cavity resonance peak, and reduce distortion while reducing the amplification effect of high-frequency resonance on noise. At the same time, the microporous structure can also improve the speaker 100 The airflow direction inside allows the airflow to flow through the microporous structure in addition to the conventional path, and the air in the internal gap of the microporous structure has strong damping, which can also be used to absorb high-frequency noise.
具体的，请结合参阅图4，在本实施方式中，所述球顶1311包括靠近所述音圈133的第一层1321、远离所述音圈133的第二层1323及连接所述第一层1321和所述第二层1323的中间层1325。同时，所述第一层1321及所述第二层1323的材料为发泡金属，所述中间层1325为铝箔层。Specifically, please refer to FIG. 4 in combination. In this embodiment, the dome 1311 includes a first layer 1321 close to the voice coil 133, a second layer 1323 far from the voice coil 133, and a second layer 1323 connected to the first Layer 1321 and the middle layer 1325 of the second layer 1323. Meanwhile, the material of the first layer 1321 and the second layer 1323 is foamed metal, and the intermediate layer 1325 is an aluminum foil layer.
需要说明的是，所述发泡金属包括发泡铝、发泡镍等，在本实施方式中，所述发泡金属为发泡铝。It should be noted that the foamed metal includes foamed aluminum, foamed nickel, etc. In this embodiment, the foamed metal is foamed aluminum.
采用发泡金属作为所述第一层1321及所述第二层1323的材料，其本身就具备多微孔结构的特点，起到了改善所述扬声器100声学性能的技术效果。The use of foamed metal as the material of the first layer 1321 and the second layer 1323 has the characteristics of a microporous structure, which has the technical effect of improving the acoustic performance of the speaker 100.
进一步的，通过对所述多微孔结构中的孔径、分布位置进行组合，可以达到对不同频段的噪声进行调节的作用。在本实施方式中，所述第一层1321包括第一层本体部1341、沿振动方向贯穿所述第一本体部1341的多个第一通孔1343及同样沿振动方向贯穿所述第一本体部1341的多个第三通孔1345。Further, by combining the apertures and distribution positions in the microporous structure, the effect of adjusting noise in different frequency bands can be achieved. In this embodiment, the first layer 1321 includes a first layer body portion 1341, a plurality of first through holes 1343 penetrating the first body portion 1341 along the vibration direction, and also penetrating the first body along the vibration direction. A plurality of third through holes 1345 of the portion 1341.
所述第二层1323包括第二本体部1361、沿振动方向贯穿所述第二本体部1361的多个第二通孔1363及同样沿振动方向贯穿所述第二本体部1361的多个第四通孔1365。The second layer 1323 includes a second body portion 1361, a plurality of second through holes 1363 penetrating the second body portion 1361 along the vibration direction, and a plurality of fourth holes penetrating the second body portion 1361 along the vibration direction. Through hole 1365.
需要说明的是，所述第一通孔1343、所述第二通孔1363、所述第三通孔1345及所述第四通孔1365的横截面形状可以是圆形、三角形、椭圆形、正方形等，在本实施方式中，上述通孔的横截面形状为圆形。It should be noted that the cross-sectional shape of the first through hole 1343, the second through hole 1363, the third through hole 1345, and the fourth through hole 1365 may be circular, triangular, oval, In this embodiment, the cross-sectional shape of the through hole is a circle.
优选的，所述第一通孔1343的孔径与所述第二通孔1363的孔径相同，且每个所述第一通孔1343在振动方向上均与一个所述第二通孔1363相对设置。Preferably, the aperture of the first through hole 1343 is the same as the aperture of the second through hole 1363, and each of the first through holes 1343 is arranged opposite to one of the second through holes 1363 in the vibration direction. .
多个所述第一通孔1343及多个所述第二通孔1363均呈阵列排布，且每列所述第一通孔1343之间的间距相同，每列所述第二通孔1363之间的间距相同，每行所述第一通孔1343之间的间距相同，每行所述第二通孔1363之间的间距相同。The plurality of first through holes 1343 and the plurality of second through holes 1363 are all arranged in an array, and the spacing between the first through holes 1343 in each row is the same, and the second through holes 1363 in each row The distance between each row is the same, the distance between the first through holes 1343 in each row is the same, and the distance between the second through holes 1363 in each row is the same.
所述第三通孔1345的孔径与所述第四通孔1365的孔径相同，且所述第三通孔1345和所述第四通孔1365的孔径小于所述第一通孔1343和所述第二通孔1363的孔径。The aperture of the third through hole 1345 is the same as the aperture of the fourth through hole 1365, and the aperture of the third through hole 1345 and the fourth through hole 1365 is smaller than that of the first through hole 1343 and the The diameter of the second through hole 1363.
多个所述第三通孔1345及多个所述第四通孔1365均呈阵列排布，且每列所述第三通孔1345之间的间距相同，每列所述第四通孔1365之间的间距相同，且每行所述第三通孔1345之间的间距相同，每行所述第四通孔1365之间的间距相同。The plurality of third through holes 1345 and the plurality of fourth through holes 1365 are all arranged in an array, and the spacing between the third through holes 1345 in each row is the same, and the fourth through holes 1365 in each row The distance between each row is the same, and the distance between the third through holes 1345 in each row is the same, and the distance between the fourth through holes 1365 in each row is the same.
同时，沿所述球顶1311的长度方向，每列所述第一通孔1343与每列所述第三通孔1345依次交替设置，每列所述第二通孔1363与每列所述第四通孔1365依次交替设置；沿所述球顶1311的宽度方向，每行所述第一通孔1343与每行所述第三通孔1345依次交替设置，每行所述第二通孔1363与每行所述第四通孔1365依次交替设置。At the same time, along the length direction of the dome 1311, each column of the first through holes 1343 and each column of the third through holes 1345 are alternately arranged in turn, each column of the second through holes 1363 and each column of the first through holes 1363 The four through holes 1365 are arranged alternately in sequence; along the width direction of the dome 1311, each row of the first through holes 1343 and each row of the third through holes 1345 are alternately arranged in sequence, and each row of the second through holes 1363 The fourth through holes 1365 are arranged alternately with each row.
当然，上述第一通孔1343、第二通孔1345、第三通孔1363及第四通孔1365之间的孔径大小及位置关系仅为本申请的一种实施方式，此种设置方式可以对一定频段内的噪声进行调节。当需要对不同的噪声频段进行调节时，所述第一层1321及所述第二层1323还可以设置更多的第五通孔、第六通孔等，其通孔之间的位置排布也可以进行调节。Of course, the above-mentioned aperture size and positional relationship between the first through hole 1343, the second through hole 1345, the third through hole 1363, and the fourth through hole 1365 are only one embodiment of the present application, and this arrangement can be adjusted to Adjust the noise in a certain frequency band. When it is necessary to adjust different noise frequency bands, the first layer 1321 and the second layer 1323 can also be provided with more fifth through holes, sixth through holes, etc., and the positions of the through holes are arranged Can also be adjusted.
实施例二Example two
本实施例提供的扬声器200与实施例一提供的扬声器100的结构基本相同，不同点在于所述球顶2311的结构。The structure of the speaker 200 provided in this embodiment is basically the same as that of the speaker 100 provided in the first embodiment, and the difference lies in the structure of the dome 2311.
请结合参阅图5和图6，在本实施方式中，所述球顶2311为采用发泡金属材料制成的板状结构。具体的，所述发泡金属包括发泡铝、发泡镍等，在本实施方式中，所述发泡金属为发泡镍。Please refer to FIGS. 5 and 6 in combination. In this embodiment, the dome 2311 is a plate-shaped structure made of foamed metal materials. Specifically, the foamed metal includes foamed aluminum, foamed nickel, etc. In this embodiment, the foamed metal is foamed nickel.
与相关技术相比，本申请的扬声器通过设置所述球顶沿振动方向的两端为多微孔结构，因多微孔结构具备较大的声阻尼，可以有效降低前腔谐振峰的能量，降低失真的同时减小高频谐振对噪声的放大作用；同时，多微孔结构可以改善扬声器内的气流流向，使得气流除了常规路径外还可以经多微孔结构流动，且多微孔结构内部间隙内的空气具有较强的阻尼，同样可以用于吸收高频噪声。Compared with the related art, the speaker of the present application is provided with a microporous structure at both ends of the dome in the vibration direction. Because the microporous structure has greater acoustic damping, it can effectively reduce the energy of the front cavity resonance peak. Reduce distortion while reducing the amplifying effect of high-frequency resonance on noise; at the same time, the microporous structure can improve the flow direction of the airflow in the speaker, so that the airflow can flow through the microporous structure in addition to the conventional path, and the inside of the microporous structure The air in the gap has strong damping and can also be used to absorb high-frequency noise.
   以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。The above are only the implementation manners of this application. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of this application, but these all belong to this application. The scope of protection.
本发明的实施方式Embodiments of the invention
在此处键入本发明的实施方式描述段落。Type here a paragraph describing the embodiment of the present invention.
工业实用性Industrial applicability
在此处键入工业实用性描述段落。Type a paragraph describing industrial applicability here.
序列表自由内容Sequence Listing Free Content
在此处键入序列表自由内容描述段落。Type here the free content description paragraph of the sequence listing.

Claims (10)

  1. 一种扬声器，包括盆架、分别固定于所述盆架的振动***及磁路***，所述振动***包括固定于所述盆架的振膜及驱动所述振膜振动发声的音圈，所述振膜包括球顶，其特征在于，所述球顶沿振动方向的两端为多微孔结构。A loudspeaker comprising a basin frame, a vibration system and a magnetic circuit system respectively fixed to the basin frame, the vibration system including a diaphragm fixed to the basin frame and a voice coil that drives the diaphragm to vibrate and produce sound, so The diaphragm includes a spherical top, which is characterized in that the two ends of the spherical top along the vibration direction have a microporous structure.
  2. 根据权利要求1所述的扬声器，其特征在于，所述球顶的材料为发泡金属。The speaker according to claim 1, wherein the material of the dome is foamed metal.
  3. 根据权利要求1所述的扬声器，其特征在于，所述球顶包括靠近所述音圈的第一层、远离所述音圈的第二层及连接所述第一层和所述第二层的中间层，所述第一层及所述第二层的材料为发泡金属，所述中间层为铝箔层。The speaker according to claim 1, wherein the dome includes a first layer close to the voice coil, a second layer far from the voice coil, and connecting the first layer and the second layer The material of the first layer and the second layer is foamed metal, and the intermediate layer is an aluminum foil layer.
  4. 根据权利要求2或3所述的扬声器，其特征在于，所述发泡金属为发泡铝或发泡镍。The speaker according to claim 2 or 3, wherein the foamed metal is foamed aluminum or foamed nickel.
  5. 根据权利要求3所述的扬声器，其特征在于，所述第一层包括第一本体部及沿振动方向贯穿所述第一本体部的多个第一通孔，所述第二层包括第二本体部及沿振动方向贯穿所述第二本体部的多个第二通孔，所述第一通孔的孔径与所述第二通孔的孔径相同，且每个所述第一通孔在振动方向上均与一个所述第二通孔相对设置。The speaker according to claim 3, wherein the first layer includes a first body portion and a plurality of first through holes penetrating the first body portion along the vibration direction, and the second layer includes a second The body portion and a plurality of second through holes penetrating the second body portion along the vibration direction, the diameter of the first through hole is the same as that of the second through hole, and each of the first through holes The vibration direction is opposite to one of the second through holes.
  6. 根据权利要求5所述的扬声器，其特征在于，多个所述第一通孔及多个所述第二通孔均呈阵列排布，且每列所述第一通孔之间的间距相同，每列所述第二通孔之间的间距相同，每行所述第一通孔之间的间距相同，每行所述第二通孔之间的间距相同。The speaker according to claim 5, wherein a plurality of the first through holes and a plurality of the second through holes are arranged in an array, and the spacing between the first through holes in each column is the same The distance between the second through holes in each column is the same, the distance between the first through holes in each row is the same, and the distance between the second through holes in each row is the same.
  7. 根据权利要求6所述的扬声器，其特征在于，所述第一层还包括沿振动方向贯穿所述第一本体部的多个第三通孔，所述第二层还包括沿振动方向贯穿所述第二本体部的多个第四通孔，所述第三通孔的孔径与所述第四通孔的孔径相同，且所述第三通孔和所述第四通孔的孔径小于所述第一通孔和所述第二通孔的孔径。The speaker according to claim 6, wherein the first layer further includes a plurality of third through holes penetrating the first body portion along the vibration direction, and the second layer further includes a plurality of third through holes penetrating the vibration direction. The plurality of fourth through holes of the second body portion, the diameter of the third through hole is the same as the diameter of the fourth through hole, and the diameter of the third through hole and the fourth through hole is smaller than that of the fourth through hole. The apertures of the first through hole and the second through hole.
  8. 根据权利要求7所述的扬声器，其特征在于，多个所述第三通孔及多个所述第四通孔均呈阵列排布，且每列所述第三通孔之间的间距相同，每列所述第四通孔之间的间距相同，每行所述第三通孔之间的间距相同，每行所述第四通孔之间的间距相同。The speaker according to claim 7, wherein a plurality of the third through holes and a plurality of the fourth through holes are all arranged in an array, and the spacing between the third through holes in each column is the same The spacing between the fourth through holes in each column is the same, the spacing between the third through holes in each row is the same, and the spacing between the fourth through holes in each row is the same.
  9. 根据权利要求8所述的扬声器，其特征在于，所述球顶在振动方向上的横截面呈矩形，沿所述球顶的长度方向，每列所述第一通孔与每列所述第三通孔依次交替设置，每列所述第二通孔与每列所述第四通孔依次交替设置，沿所述球顶的宽度方向，每行所述第一通孔与每行所述第三通孔依次交替设置，每行所述第二通孔与每行所述第四通孔依次交替设置。The speaker according to claim 8, wherein the cross section of the dome in the vibration direction is rectangular, and along the length direction of the dome, each column of the first through hole and each column of the first The three through holes are alternately arranged in turn, the second through holes in each column and the fourth through holes in each column are alternately arranged in turn, and along the width direction of the dome, the first through holes in each row are The third through holes are alternately arranged in turn, and the second through holes in each row and the fourth through holes in each row are alternately arranged in turn.
  10. 在此处键入权利要求项10。Type claim 10 here.
PCT/CN2019/094017 2019-06-29 2019-06-29 Loudspeaker WO2021000119A1 (en)

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CN111954126A (en) * 2020-06-30 2020-11-17 瑞声新能源发展(常州)有限公司科教城分公司 Carbon fiber dome and loudspeaker
CN112188373B (en) * 2020-09-23 2022-04-29 瑞声新能源发展(常州)有限公司科教城分公司 Speaker and electronic equipment
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