WO2021119905A1 - 音膜及扬声器 - Google Patents

音膜及扬声器 Download PDF

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Publication number
WO2021119905A1
WO2021119905A1 PCT/CN2019/125579 CN2019125579W WO2021119905A1 WO 2021119905 A1 WO2021119905 A1 WO 2021119905A1 CN 2019125579 W CN2019125579 W CN 2019125579W WO 2021119905 A1 WO2021119905 A1 WO 2021119905A1
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WO
WIPO (PCT)
Prior art keywords
folding ring
sound
fold
sound film
width
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Application number
PCT/CN2019/125579
Other languages
English (en)
French (fr)
Inventor
章统
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
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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/CN2019/125579 priority Critical patent/WO2021119905A1/zh
Publication of WO2021119905A1 publication Critical patent/WO2021119905A1/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
    • 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
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Definitions

  • This application relates to the field of electroacoustics, and in particular to a sound film and loudspeaker.
  • the sound film in the prior art includes a large folding ring.
  • some sound films also include a small folding ring.
  • Some existing sound films are provided with a ring of small folding rings on the inside or outside of the large folding ring.
  • it is easy to produce segmented vibration at high frequencies, resulting in deep valleys in the high-frequency sensitivity curve; in view of the above problem of segmented vibration of the sound film,
  • Some sound membranes are equipped with a small folding ring at the corner of the large folding ring, but this will cause the stiffness of the sound membrane to increase, the resonant frequency of the speaker will increase, and the low frequency sensitivity of the sound membrane will decrease.
  • the purpose of this application is to provide a sound film and a speaker with better sound quality.
  • a sound film which includes a dome at an intermediate position, a folding ring part arranged around the dome, and a fixing part extending outward from the edge of the folding ring to fix the sound film
  • the folding ring part includes a first folding ring part and a plurality of second folding ring parts
  • the first folding ring part includes a first part and a second part
  • the second folding ring part is disposed on the first part At the outer edge and/or inner edge of the, the sum of the width of the first part and the width of the second ring portion is equal to the width of the second part.
  • the first folding ring portion includes a long side portion, a short side portion, and a connecting portion connecting the long side portion and the short side portion, and the second folding ring portion is disposed on the connecting portion. At the outer edge and/or at the inner edge.
  • the first folding ring portion is symmetrical about the center of the sound membrane, and several second folding ring portions are symmetrical about the center of the sound membrane.
  • the first folding ring portion is connected by two oppositely arranged long side portions, two oppositely arranged short side portions and a connecting portion to form a rectangular ring shape.
  • the width of the first folding ring portion is greater than the width of the second folding ring portion.
  • the convex direction of the first folding ring portion is opposite to the convex direction of the second folding ring portion.
  • the spherical top and the folding ring portion are integrally formed.
  • it further includes a first fold portion, and the first fold portion is disposed on the first folding ring portion.
  • it further includes a second fold portion, and the second fold portion is disposed on the second folding ring portion.
  • the present application also provides a loudspeaker including a basin frame, a magnetic circuit system and a vibration system contained in the basin frame, and a sound film as described in any of the above embodiments.
  • the beneficial effect of the present application is that several second folding ring portions are arranged at the outer edge and/or the inner edge of the first part, compared to the prior art directly surrounding the outer edge of the large folding ring.
  • Folding ring the junction between the first folding ring part and the second folding ring part in this embodiment will be reduced a lot, thereby reducing the risk of splitting vibration at high frequencies, so that the sound film in this embodiment is at high frequencies. There will be no deep valleys in the sensitivity curve.
  • the sum of the width of the first part and the width of the second ring part is the same as the width of the second part. The resonant frequency of the speaker will not increase, and the low frequency sensitivity of the sound film will not There is a loss.
  • Figure 1 is a schematic diagram of the overall structure of the speaker of the application
  • Figure 2 is a schematic diagram of an exploded structure of the speaker of the application
  • Figure 3 is a schematic diagram of the overall structure of the sound film of the application.
  • Fig. 4 is a schematic diagram of the side structure of the sound film of the application.
  • Figure 5 is the sensitivity curve diagram of the sound film of the application.
  • Fig. 6 is a graph of the sensitivity curve of the high-frequency segment of the sound film of the application.
  • vibration system 100, sound film; 110, dome top; 111, dome top; 120, folding ring part; 121, first folding ring part; 121a, first part; 121b, second part; 123, The first fold part; 1211, the long side part; 1212, the short side part; 1213, the connecting part; 122, the second folding ring part; 130, the fixed part, 101, the voice coil; 20, the basin frame, 30, the magnetic circuit system 301, yoke; 302, magnetic steel; 303, pole core; 40, front cover.
  • the present application provides a speaker, which includes a basin frame 20, a vibration system 10 and a magnetic circuit system 30 accommodated in the basin frame 20, and a cover provided in The front cover 40 of the basin frame 20 and the magnetic circuit system 30 are used to drive the vibration system 10 to vibrate and produce sound.
  • the basin frame 20 is a hollow rectangular body as a whole, the vibration system 10 and the magnetic circuit system 30 are installed in the basin frame 20, and the front cover 40 is connected to the basin frame 20 with an opening. One side.
  • the vibration system 10 includes a sound film 100 and a voice coil 101 located below the sound film 100, and the voice coil 101 is used to drive the sound film 100 to vibrate and produce sound.
  • the shape of the voice coil 101 is not limited, and is preferably a square ring.
  • the sound film 100 includes a dome 110 located in the middle position, a folding ring portion 120 arranged around the edge of the dome 110, and a fixing formed by extending outward from the edge of the folding ring 120.
  • the portion 130 is used to fix the sound film 100.
  • the dome 110 and the folding ring 120 in the embodiment of the present application may be integrally formed to make the structure more stable, or they may be separately arranged to facilitate replacement of the dome 110.
  • the dome 110 in the embodiment of the present application can be made of a variety of materials.
  • the dome 110 is pressed by a polymer material, such as PEN, etc., which can effectively reduce the noise.
  • the weight of the film 100 is not limited to PEN, etc.
  • the embodiment of the present application further includes a dome 111 which is arranged on the dome 110.
  • the dome 111 is glued to the dome 110 by glue, and the dome 111 is It may also be integrally formed with the dome top 110.
  • the folding ring portion 120 in the embodiment of the present application includes a first folding ring portion 121 and a plurality of second folding ring portions 122.
  • the first folding ring portion 121 includes a first portion 121a and a second portion 121b.
  • the second folding ring portion 122 is arranged at the outer edge and/or the inner edge of the first folding ring portion 121.
  • a plurality of the second folding ring portions 122 are arranged at intervals, and the first portion 121a The sum of the width and the width of the second folding ring portion 122 is equal to the width of the second portion 121b.
  • a plurality of second folding ring portions 122 are arranged at intervals on the outer edge and/or at the inner edge of the first folding ring portion 121. In this embodiment, it is preferable to arrange a plurality of second folding ring portions 122 at intervals on the first folding ring portion 121.
  • a circle of small folding rings is directly arranged at the outer edge of a folding ring portion 121.
  • the first folding ring portion 121 and the second folding ring are The boundary area of the part 122 will be reduced a lot, thereby reducing the risk of segmentation vibration at high frequencies, so that the sensitivity curve of the sound film 100 in this embodiment does not appear deep valleys at high frequencies.
  • the resonance frequency of the speaker will not increase, and the low frequency sensitivity of the sound film 100 will not appear. loss.
  • the first folding ring portion 121 is symmetrical about the center of the sound membrane 100, and a plurality of second folding ring portions 122 are symmetrical about the center of the sound membrane 100. Setting the sound membrane 100 in a centrally symmetrical structure is beneficial to the stability of the sound membrane 100 when vibrating and sounding.
  • the first folding ring portion 121 includes a long side portion 1211, a short side portion 1212, and a connecting portion 1213 connecting the long side portion 1211 and the short side portion 1212.
  • the long side portion 1211 and the short side portion 1212 1212 constitutes the second portion 121b
  • the connecting portion 1213 constitutes the first portion 121a
  • the second folding ring portion 122 is disposed at the outer edge and/or the inner edge of the connecting portion 1213.
  • the first folding ring portion 121 is formed by connecting the two opposing long side portions 1211, the two opposing short side portions 1212 and the connecting portion 1213 to form a rectangular ring shape.
  • the one-fold ring portion 121 is arranged in a symmetrical rectangular ring shape, the vibration is more uniform, and the sound quality is better.
  • first folding ring portion 121 in the embodiment of the present application is not limited, and may also be square, circular, or other shapes.
  • the first folding ring portion 121 in the embodiment of the present application has different widths at certain positions.
  • the width of the first folding ring portion 121 is larger than that of the second folding ring portion 122.
  • the second folding ring portion 122 is arranged on the outer edge of the first folding ring portion 121 at intervals. Further preferably, the minimum width on the first folding ring portion 121 is much larger than the width of the second folding ring portion 122.
  • the protrusion direction of the first folding ring portion 121 is opposite to the protrusion direction of the second folding ring portion 122. It should be noted that in other embodiments, the The convex direction of the first folding ring portion 121 is the same as the convex direction of the second folding ring portion 122.
  • the embodiment of the present application further includes a first fold portion 123, and the first fold portion 123 is disposed on the first folding ring portion 121 to enhance the strength of the sound membrane 100, thereby effectively , The reliability of the sound film 100 is enhanced. Accordingly, the stability of the speaker using the sound film 100 in this embodiment is effectively improved.
  • the first corrugated portion 123 is disposed on the connecting portion 1213. To enhance the strength of the connecting portion 1213.
  • the embodiment of the present application further includes a second fold portion, and the second fold portion is disposed on the second folding ring portion 122 to enhance the strength of the sound membrane 100.
  • the fixing portion 130 is fixed between the basin frame 20 and the front cover 40.
  • the magnetic circuit system 30 includes a magnetic yoke 301 fixedly connected to the end of the basin frame 20 far away from the front cover 40, a magnetic steel 302 assembled on the magnetic yoke 301, and a magnetic steel 302 attached to the magnetic steel 302's pole core 303.
  • the yoke 301 includes a bottom plate and a side plate bent from the edge of the bottom plate.
  • the side plate and the magnetic steel 302 are spaced apart to form a magnetic gap, and the voice coil 101 is at least partially located in the magnetic gap.
  • the embodiment of the present application also provides a sensitivity test of the sound film 100 with three different structures, which are the new structure, the original structure 1 and the original structure 2 of the embodiment of the present application, and the original structure 1
  • the feature of is that a circle of small fold rings is directly arranged around the outer edge of the large fold ring.
  • the feature of the original structure 2 is that the width of the large fold ring at the position where the small fold ring is not provided is larger than the width at the position where the small fold ring is provided. The total width of the ring and the small folding ring is smaller.
  • the sensitivity graph of FIG. 5 It can be seen from the sensitivity graph of FIG. 5 that below the frequency of 1000/HZ, the sound membrane of the original structure 2 has lower sensitivity than the sound membrane 100 of the present application, and the original structure 2 has poor sensitivity in the low frequency range. It can be seen from the sensitivity graph of Fig. 6 that in the high frequency range of 10000/HZ to 15000/HZ, the sound film sensitivity curve of the original structure 1 has obvious deep valleys, and the original structure 1 has poor sensitivity in the high frequency range.
  • the sound membrane 100 of the embodiment of the present application not only avoids the split vibration of the sound membrane 100 during high-frequency vibration, the high-frequency sensitivity curve does not appear deep valleys; at the same time, the resonance frequency does not increase, and there is no loss in low-frequency sensitivity. No matter in the high frequency range or the low frequency range, the sensitivity of the sound membrane 100 of the embodiment of the present application is very high, and the vibration effect of the sound membrane 100 is more stable.

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

Abstract

本申请提供了一种音膜及扬声器，包括位于中间位置的球顶部、围绕球顶部设置的折环部，以及自折环部边缘向外延伸的固定部，其中，折环部包括第一折环部和若干第二折环部，若干第二折环部间隔设置在第一折环部的外边缘处和/或内边缘处，所述第一折环部包括第一部分和第二部分，所述第二折环部设置在所述第一部分的外边缘和/或内边缘处，所述第一部分的宽度与所述第二折环部的宽度的总和，与所述第二部分的宽度相等。本申请的音膜可以降低在高频产生分割振动的风险，使本实施例中的音膜在高频中的灵敏度曲线不会出现深谷，同时，扬声器的谐振频率不会升高，音膜的低频的灵敏度不会出现损失。

Description

音膜及扬声器 技术领域
本申请涉及电声领域，尤其涉及一种音膜及扬声器。
 背景技术
在现如今的移动互联网时代，智能移动终端设备的数量不断上升，对移动终端的要求也越来越高，其中之一便是要求高品质的音质功能。
 技术问题
现有技术的音膜包括大折环，出于音质及质量的考虑，一些音膜还包括小折环，现有的一些音膜是在大折环的内侧或外侧设置一圈小折环，但是，扬声器工作时，音膜的大折环与小折环的交界处，在高频极易产生分割振动，导致高频的灵敏度曲线会出现深谷；针对以上音膜产生分割振动的问题，现有的一些音膜是在大折环的拐角处设置一段小折环，但是，会导致音膜的刚度变大，扬声器的谐振频率升高，音膜的低频的灵敏度降低。
因此，有必要提供一种新型的音膜来解决上述问题。
 技术解决方案
本申请的目的在于提供一种音膜及扬声器，具有更好的音质。
本申请的技术方案如下：提供音膜，包括位于中间位置的球顶部、围绕所述球顶部设置的折环部，以及自所述折环部边缘向外延伸的固定部以固定所述音膜，其中，所述折环部包括第一折环部和若干第二折环部，所述第一折环部包括第一部分和第二部分，所述第二折环部设置在所述第一部分的外边缘和/或内边缘处，所述第一部分的宽度与所述第二折环部的宽度的总和，与所述第二部分的宽度相等。
可选地，所述第一折环部包括长边部、短边部以及连接所述长边部和所述短边部的连接部，所述第二折环部设置在所述连接部的外边缘处和/或内边缘处。
可选地，所述第一折环部关于音膜中心对称，若干所述第二折环部关于音膜中心对称。
可选地，所述第一折环部由两相对设置的所述长边部、两相对设置的所述短边部和连接部连接形成矩形环状。
可选地，所述第一折环部的宽度大于所述第二折环部的宽度。
可选地，所述第一折环部的凸起方向与所述第二折环部的凸起方向相反。
可选地，所述球顶部与所述折环部一体成型设置。
可选地，还包括第一褶皱部，所述第一褶皱部设置在所述第一折环部上。
可选地，还包括第二褶皱部，所述第二褶皱部设置在所述第二折环部上。
本申请还提供一种扬声器，包括盆架、收容于所述盆架内的磁路系统、振动系统以及如上任一项实施例中所述的一种音膜。
 有益效果
本申请的有益效果在于：将若干第二折环部设置在第一部分的外边缘处和/或内边缘处，相较于现有技术中的直接在大折环的外边缘围绕设置一圈小折环，本实施例中的第一折环部与第二折环部的交界处会减少很多，从而降低了在高频产生分割振动的风险，使本实施例中的音膜在高频中的灵敏度曲线不会出现深谷，同时，第一部分的宽度与第二折环部的宽度的总和，与第二部分的宽度相同，扬声器的谐振频率不会升高，音膜的低频的灵敏度不会出现损失。
 附图说明
图1为本申请扬声器的整体结构示意图；
图2为本申请扬声器的分解结构示意图；
图3为本申请音膜的整体结构示意图；
图4为本申请音膜的侧面结构示意图；
图5为本申请音膜的灵敏度曲线图；
图6为本申请音膜的高频音段的灵敏度曲线图；
图中：10、振动系统；100、音膜；110、球顶部；111、球顶；120、折环部；121、第一折环部；121a、第一部分；121b、第二部分；123、第一褶皱部；1211、长边部；1212、短边部；1213、连接部；122、第二折环部；130、固定部；101、音圈；20、盆架；30、磁路系统；301、磁轭；302、磁钢；303、极芯；40、前盖。
 本发明的实施方式
下面结合附图和实施方式对本申请作进一步说明。
如图1、图2、图3及图4所示，本申请提供了一种扬声器，其包括盆架20、收容于所述盆架20内的振动系统10和磁路系统30及盖设于所述盆架20的前盖40，所述磁路系统30用于驱动所述振动系统10振动发声。
所述盆架20整体为呈中空的矩形体，所述振动系统10和所述磁路系统30安装在所述盆架20内，所述前盖40盖接于所述盆架20具有开口的一侧。
所述振动系统10包括音膜100和位于所述音膜100下方的音圈101，所述音圈101用于驱动所述音膜100振动发声。所述音圈101的形状不限，优选为方形环状。
如图3所示，所述音膜100包括位于中间位置的球顶部110和围绕设置在所述球顶部110边缘的折环部120，以及自所述折环部120边缘向外延伸形成的固定部130以固定所述音膜100。需要说明的是，本申请实施例中的所述球顶部110与所述折环部120可以是一体成型以使结构更稳定，也可以是分开设置以便于更换所述球顶部110。
本申请实施例中的所述球顶部110可以采用多种材料制成，在本实施例中，所述球顶部110采用高分子材料压制而成，如PEN等压制成型，可有效降低所述音膜100的重量。
本申请实施例还包括球顶111，所述球顶111设置在所述球顶部110上，优选地，所述球顶111通过粘胶粘设在所述球顶部110上，所述球顶111也可以是与所述球顶部110一体成型。
本申请实施例中的所述折环部120包括第一折环部121和若干第二折环部122，具体地，所述第一折环部121包括第一部分121a和第二部分121b，所述第二折环部122设置在所述所述第一折环部121的外边缘和/或内边缘处，优选地，若干所述第二折环部122间隔设置，所述第一部分121a的宽度与所述第二折环部122的宽度的总和，与所述第二部分121b的宽度相等。将若干第二折环部122间隔设置在第一折环部121的外边缘处和/或内边缘处，本实施例中，优选将若干所述第二折环部122间隔设置在所述第一折环部121的外边缘处，相较于现有技术中的直接在大折环的外边缘围绕设置一圈小折环，本实施例中的第一折环部121与第二折环部122的交界区域会减少很多，从而降低了在高频产生分割振动的风险，使本实施例中的所述音膜100在高频中的灵敏度曲线不会出现深谷，同时，由于在折环部120的任一位置处，第一折环部121的宽度与第二折环部122的宽度的和相等，扬声器的谐振频率不会升高，所述音膜100的低频的灵敏度不会出现损失。
所述第一折环部121关于所述音膜100中心对称，若干所述第二折环部122关于所述音膜100中心对称。使所述音膜100设置为中心对称结构，有利于所述音膜100振动发声的稳定性。
所述第一折环部121包括长边部1211、短边部1212以及连接所述长边部1211和所述短边部1212的连接部1213，所述长边部1211和所述短边部1212组成所述第二部分121b，所述连接部1213组成所述第一部分121a，所述第二折环部122设置在所述连接部1213的外边缘处和/或内边缘处。进一步优选地，所述第一折环部121由两相对设置的所述长边部1211、两相对设置的所述短边部1212和连接部1213连接形成矩形环状，本实施例中的第一折环部121设置为对称的矩形环状，振动更加均匀，音质更好。
需要说明的是，本申请实施例中的所述第一折环部121的形状不做限制，还可以是方形，以及圆形，还可以是其它形状。
如图3所示，本申请实施例中的第一折环部121存在某些位置处的宽度不等，优选地，所述第一折环部121的宽度大于所述第二折环部122的宽度，所述第二折环部122间隔设置在所述第一折环部121的外边缘。进一步优选地，第一折环部121上的最小宽度远大于第二折环部122的宽度。
如图4所示，优选地，所述第一折环部121的凸起方向与所述第二折环部122的凸起方向相反，需要说明的是，在另外一些实施例中，所述第一折环部121的凸起方向与所述第二折环部122的凸起方向相同。
如图3及图4，本申请实施例中还包括第一褶皱部123，所述第一褶皱部123设置在所述第一折环部121上以增强所述音膜100的强度，从而有效的增强了所述音膜100的可靠性，相应地，使用本实施例中音膜100的扬声器的稳定性得到有效的提高，优选地，所述第一褶皱部123设置在所述连接部1213上以增强连接部1213的强度。
本申请实施例中还包括第二褶皱部，所述第二褶皱部设置在所述第二折环部122上以增强所述音膜100的强度。
如图1、图2、图3及图4所示，所述固定部130固定于所述盆架20与所述前盖40之间。
所述磁路系统30包括与所述盆架20的远离所述前盖40的一端固定连接的磁轭301、组配于所述磁轭301上的磁钢302及贴附于所述磁钢302的极芯303。
所述磁轭301包括底板及自所述底板边缘弯折形成的侧板，所述侧板与所述磁钢302间隔设置形成磁间隙，所述音圈101至少部分位于所述磁间隙内。
如图5和图6所示，本申请实施例还提供了三种不同结构的音膜100的灵敏性试验，分别为本申请实施例的新结构、原结构1以及原结构2，原结构1的特征为直接在大折环的外边缘围绕设置一圈小折环，原结构2的特征为大折环未设置小折环的位置处的宽度比设置有小折环的位置处的大折环与小折环的总宽度更小。
由图5的灵敏度曲线图可知，在1000/HZ的频率以下，原结构2的音膜相较于本申请的音膜100灵敏度更低，原结构2在低频率范围内灵敏度不佳。由图6的灵敏度曲线图可知，在10000/HZ到15000/HZ的高频率范围内，原结构1的音膜灵敏度曲线具有明显的深谷，原结构1在高频率范围内灵敏度不佳。本申请实施例的音膜100既避免了高频振动时音膜100的分割振动，高频灵敏度曲线不会出现深谷；同时谐振频率也不会升高，低频灵敏度也不会有损失。无论在高频率范围内，还是低频率范围内，本申请实施例的音膜100的灵敏度都很高，音膜100的振动效果更稳定。
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。

Claims (10)

  1. 音膜，其特征在于，包括位于中间位置的球顶部、围绕所述球顶部设置的折环部，以及自所述折环部边缘向外延伸的固定部以固定所述音膜，其中，所述折环部包括第一折环部和若干第二折环部，所述第一折环部包括第一部分和第二部分，所述第二折环部设置在所述第一部分的外边缘和/或内边缘处，所述第一部分的宽度与所述第二折环部的宽度的总和，与所述第二部分的宽度相等。
  2. 根据权利要求1所述的音膜，其特征在于：所述第一折环部包括长边部、短边部以及连接所述长边部和所述短边部的连接部，所述第二折环部设置在所述连接部的外边缘处和/或内边缘处。
  3. 根据权利要求2所述的音膜，其特征在于：所述第一折环部关于音膜中心对称，若干所述第二折环部关于音膜中心对称。
  4. 根据权利要求3所述的音膜，其特征在于：所述第一折环部由两相对设置的所述长边部、两相对设置的所述短边部和连接部连接形成矩形环状。
  5. 根据权利要求1-4中任一项所述的音膜，其特征在于：所述第一折环部的宽度大于所述第二折环部的宽度。
  6. 根据权利要求1-4中任一项所述的音膜，其特征在于：所述第一折环部的凸起方向与所述第二折环部的凸起方向相反。
  7. 根据权利要求1-4中任一项所述的音膜，其特征在于：所述球顶部与所述折环部一体成型设置。
  8. 根据权利要求1-4中任一项所述的音膜，其特征在于：还包括第一褶皱部，所述第一褶皱部设置在所述第一折环部上。
  9. 根据权利要求8所述的音膜，其特征在于：还包括第二褶皱部，所述第二褶皱部设置在所述第二折环部上。
  10. 扬声器，其特征在于：包括盆架、收容于所述盆架内的磁路系统、振动系统以及如上权利要求1-9中任一项所述的音膜。
PCT/CN2019/125579 2019-12-16 2019-12-16 音膜及扬声器 WO2021119905A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150124992A1 (en) * 2013-11-05 2015-05-07 Kabushiki Kaisha Audio-Technica Dynamic Headphone Unit and Method of Producing Dynamic Headphone Unit
CN207869348U (zh) * 2018-01-27 2018-09-14 瑞声科技(新加坡)有限公司 音膜
CN208638607U (zh) * 2018-06-01 2019-03-22 瑞声科技(新加坡)有限公司 一种振膜及具有该振膜的扬声器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150124992A1 (en) * 2013-11-05 2015-05-07 Kabushiki Kaisha Audio-Technica Dynamic Headphone Unit and Method of Producing Dynamic Headphone Unit
CN207869348U (zh) * 2018-01-27 2018-09-14 瑞声科技(新加坡)有限公司 音膜
CN208638607U (zh) * 2018-06-01 2019-03-22 瑞声科技(新加坡)有限公司 一种振膜及具有该振膜的扬声器

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