WO2022067982A1 - 振膜及发声器件 - Google Patents

振膜及发声器件 Download PDF

Info

Publication number
WO2022067982A1
WO2022067982A1 PCT/CN2020/128072 CN2020128072W WO2022067982A1 WO 2022067982 A1 WO2022067982 A1 WO 2022067982A1 CN 2020128072 W CN2020128072 W CN 2020128072W WO 2022067982 A1 WO2022067982 A1 WO 2022067982A1
Authority
WO
WIPO (PCT)
Prior art keywords
pattern
patterns
vibrating
ring portion
pattern group
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/128072
Other languages
English (en)
French (fr)
Inventor
吴美薇
陈志竹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Technologies Pte Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Technologies Pte Ltd
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 AAC Acoustic Technologies Shenzhen Co Ltd, AAC Technologies Pte Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2022067982A1 publication Critical patent/WO2022067982A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • 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 utility model relates to the field of electro-acoustics, in particular to a vibrating film and a sound-emitting device.
  • the vibrating membrane in the prior art includes a vibrating portion located in the middle position, a folded ring portion extending and protruding outward from the vibrating portion, and a fixing portion connected with the folded ring portion; and the folded ring portion of the vibrating membrane
  • the arc-shaped part is provided with an arc-shaped part, and the arc-shaped part is prone to wrinkle when vibrating. The probability of rupture is also greater, which greatly affects the reliability of the diaphragm.
  • the purpose of the utility model is to provide a vibrating film and a sound-emitting device which are beneficial to improving the distortion of high-order harmonic frequencies and have high reliability.
  • the present invention provides a vibrating film, which comprises a vibrating portion located in a middle position, a ring portion surrounding the vibrating portion and connected to the vibrating portion, and a ring portion separated from the vibrating portion by the ring portion.
  • One side of the vibrating portion is bent and extended, and a first pattern group and a second pattern group are sequentially arranged on the ring portion from the side close to the vibrating portion to the side far from the vibrating portion;
  • the first pattern group includes a plurality of first patterns spaced along the inner circumferential direction of the folded ring portion, and each of the first patterns extends from the middle portion of the folded ring portion to the direction away from the fixed portion.
  • the vibrating portion is connected with the vibrating portion;
  • the second pattern group includes a plurality of second patterns arranged at intervals along the outer circumferential direction of the folded ring portion, and each second pattern is formed by the folded ring portion.
  • the middle portion of the ring portion extends toward the fixing portion.
  • the first pattern and the vibrating portion are smoothly and transitionally connected.
  • the adjacent first patterns are smoothly and transitionally connected.
  • the first pattern and the second pattern are arranged at staggered intervals along the circumferential direction of the folded ring portion.
  • one end of the second pattern close to the fixing portion is spaced from the fixing portion.
  • the folded ring portion has a rectangular structure with rounded corners, and the folded ring portion comprises two first sides arranged parallel to its long axis direction, two second sides arranged parallel to its short axis direction, and Connecting the rounded corners of the adjacent first sides and the second sides; the first pattern group and the second pattern group are distributed at the rounded corners.
  • the first side and the second side are respectively provided with a third pattern group and a fourth pattern group;
  • the third pattern group includes at least two third patterns arranged at intervals, and the fourth pattern
  • the group includes at least two fourth patterns arranged at intervals, and both the third pattern and the fourth pattern extend from a side close to the vibration part to a side close to the fixed part.
  • each of the third patterns includes two intersecting third sub-patterns
  • each of the fourth patterns includes two intersecting fourth sub-patterns
  • the first pattern, the second pattern, the third pattern and the fourth pattern are all concave patterns opposite to the convex direction of the folded ring portion.
  • both the first pattern and the second pattern are convex patterns in the same convex direction as the folded ring portion.
  • the inner and outer sides of the ring portion of the diaphragm are respectively provided with a plurality of first patterns and second patterns arranged at intervals, and the first patterns are composed of
  • the middle part of the ring portion extends to the vibrating portion in a direction away from the fixing portion and is connected with the vibrating portion; when the vibrating membrane vibrates, the arrangement of this structure makes the stress distribution on the vibrating membrane uniform, so that the diaphragm can vibrate smoothly, prevent the diaphragm from cracking due to uneven vibration, and reduce the risk of separation of the diaphragm and other components, thereby improving the reliability of the sound-emitting device; another In one aspect, the arrangement of the above structure can also effectively avoid wrinkles at the four rounded corners of the folded ring portion, reduce high-order harmonic distortion, and improve the fatigue resistance of the diaphragm, thereby improving the acoustic performance of the sound-emitting device.
  • FIG. 1 is a schematic three-dimensional structure diagram of a diaphragm according to a first embodiment of the present invention
  • Fig. 2 is the top view of the diaphragm shown in Fig. 1;
  • Fig. 3 is the enlarged view of the part shown in A in Fig. 2;
  • FIG. 4 is a schematic three-dimensional structural diagram of a diaphragm according to a second embodiment of the present invention.
  • Fig. 5 is the top view of the diaphragm shown in Fig. 4;
  • FIG. 6 is an enlarged view of the portion indicated by B in FIG. 5 .
  • the present invention provides a vibrating membrane 10 , which includes a vibrating portion 1 at a middle position, a ring portion 2 surrounding the vibrating portion 1 and connected to the vibrating portion 1 , and a vibrating portion 2 surrounded by the vibrating portion 1 .
  • the side of the ring portion 2 away from the vibrating portion 1 is a fixed portion 3 that is bent and extended.
  • a first pattern group 4 and a second pattern group 5 are sequentially arranged on the ring portion 2 from the side close to the vibrating portion 1 to the side far from the vibrating portion 1;
  • the first pattern group 4 includes a plurality of first patterns 41 arranged at intervals along the inner circumferential direction of the folded ring portion 2 , and each of the first patterns 41 is moved away from the center of the folded ring portion 2 toward the outside.
  • the fixed part 3 extends to the vibration part 1 and is connected with the vibration part 1;
  • the first pattern 41 is connected to the vibrating portion 1 smoothly and transitionally.
  • the connection between the first pattern 41 and the vibrating portion 1 is chamfered.
  • the adjacent first patterns 41 are smoothly connected by transition.
  • the second pattern group 5 includes a plurality of second patterns 51 arranged at intervals along the outer circumference of the folded ring portion 2 , and each of the second patterns 51 extends from the middle of the folded ring portion 2 to the
  • the fixing portion 3 extends in the direction, and one end of the second pattern 51 close to the fixing portion 3 is spaced from the fixing portion 3 .
  • the first patterns 41 and the second patterns 51 are arranged at staggered intervals along the circumferential direction of the folded ring portion 2 .
  • the folded ring portion 2 has a rectangular structure with rounded corners, and the folded ring portion 2 includes two first sides 21 arranged parallel to its long axis direction and two first sides 21 arranged parallel to its short axis direction.
  • the two sides 22 and the rounded corners 23 connecting the adjacent first sides 21 and the second sides 22 , the first pattern group 4 and the second pattern group 5 are distributed at the rounded corners 23 .
  • a plurality of first patterns 41 and second patterns 51 are arranged on the inner and outer sides of the folded ring portion 2 respectively, and the first pattern 41 is away from the middle portion of the folded ring portion 2 to the outside.
  • the fixed portion 3 extends to the vibrating portion 1 and is connected to the vibrating portion 1; when the vibrating membrane 10 vibrates, the arrangement of this structure makes the stress distribution on the vibrating membrane 10 uniform, so that the The vibrating membrane 10 can vibrate smoothly, preventing the vibrating membrane 10 from being ruptured due to uneven vibration, and reducing the risk of separation of the vibrating membrane 10 from other components, thereby improving the reliability of the sound-emitting device using the vibrating membrane;
  • the arrangement of the above structure can also effectively avoid wrinkles at the four rounded corners of the folded ring portion 2, reduce high-order harmonic distortion, and improve the fatigue resistance of the diaphragm, so that the application of the vibration The acoustic performance of the sound-emitting device of the membrane is better.
  • the first side 21 and the second side 22 are respectively provided with a third pattern group 6 and a fourth pattern group 7 ;
  • the third pattern group 6 includes at least two third patterns 61 arranged at intervals
  • the fourth pattern group 7 includes at least two fourth patterns 71 arranged at intervals
  • the third pattern 61 and the The fourth patterns 71 all extend from the side close to the vibration part 1 to the side close to the fixed part 3 .
  • each of the third patterns 61 includes two intersecting third sub-patterns 611
  • each of the fourth patterns 71 includes two intersecting fourth sub-patterns 711 .
  • the first pattern 41 , the second pattern 51 , the third pattern 61 and the fourth pattern 71 are all concave patterns opposite to the convex direction of the folded ring portion 2 . .
  • the arrangement of this structure improves the compliance of the diaphragm, thereby making the vibration of the diaphragm 10 more stable.
  • the cross-sectional shape of the first pattern 41 along the vibration direction of the diaphragm 10 is V-shaped; the cross-sectional shape of the second pattern 51 along the vibration direction of the diaphragm is an arc shape; the The cross-sectional shapes of the third pattern 61 and the fourth pattern 71 along the vibration direction of the diaphragm 10 are U-shaped.
  • the plane shape of the first pattern 41 is a half-crescent shape; the plane shape of the second pattern 51 is an ellipse; of course, the first pattern 41 , the second pattern 51 , the third pattern 61 and The cross-sectional shape and horizontal shape of the fourth pattern 71 along the vibration direction of the diaphragm 10 are not limited to this, and can be designed according to actual conditions.
  • the diaphragm 10A of Embodiment 2 is basically the same as the diaphragm 10 of Embodiment 1, and the same parts will not be repeated here.
  • Example 2 differs from Example 1 only in the pattern structure, and the pattern structure of Example 2 is described below.
  • the vibrating film 10A includes a vibrating portion 1A at a middle position, a ring portion 2A surrounding the vibrating portion 1A and connected to the vibrating portion 1A, and a side away from the vibrating portion 1A by the ring portion 2A. Bend and extend the fixed part 3A;
  • a first pattern group 4A and a second pattern group 5A are sequentially arranged on the folded ring portion 2A from the side close to the vibrating portion 1A to the side away from the vibrating portion 1A;
  • the first pattern group 4A includes a plurality of first patterns 41A spaced along the inner circumferential direction of the folded ring portion 2A, and each of the first patterns 41A is formed by the middle portion of the folded ring portion 2A.
  • the second pattern group 5A includes a plurality of first pattern groups arranged at intervals along the outer circumferential direction of the folded ring portion 2A. Two patterns 51A, each of the second patterns 51A extends from the middle of the folded ring portion 2A toward the fixing portion 3A, and the second pattern 51A is close to one end of the fixing portion 3A and the fixing portion 3A interval setting.
  • the loop portion 2A has a rectangular structure with rounded corners, and the loop portion 2A includes two first sides 21A arranged parallel to its long axis direction and two second sides 22A arranged parallel to its short axis direction. And the rounded corners 23A connecting the adjacent first sides 21A and the second sides 22A, the first pattern group 4A and the second pattern group 5A are distributed at the rounded corners 23A.
  • first side 21A and the second side 22A are respectively provided with a third pattern group 6A and a fourth pattern group 7A;
  • the third pattern group 6A includes at least two third patterns 61A arranged at intervals
  • the fourth pattern group 7A includes at least two fourth patterns 71A arranged at intervals, and the third pattern 61A and the fourth pattern 71A both extend from the side close to the vibrating portion 1A to the side close to the vibrating portion 1A.
  • the first pattern 41A and the second pattern 51A are raised patterns in the same direction as the bulging ring portion 2A, and the third pattern 61A and the fourth pattern 71A are both
  • the bulging portion 2A has a concave pattern with opposite convex directions. The arrangement of this structure improves the compliance of the diaphragm 10A, thereby making the vibration of the diaphragm 10A more stable.
  • the inner and outer sides of the ring portion of the diaphragm are respectively provided with a plurality of first patterns and second patterns arranged at intervals, and the first patterns are composed of
  • the middle part of the ring portion extends to the vibrating portion in a direction away from the fixing portion and is connected with the vibrating portion; when the vibrating membrane vibrates, the arrangement of this structure makes the stress distribution on the vibrating membrane uniform, so that the diaphragm can vibrate smoothly, prevent the diaphragm from cracking due to uneven vibration, and reduce the risk of separation of the diaphragm and other components, thereby improving the reliability of the sound-emitting device; another In one aspect, the arrangement of the above structure can also effectively avoid wrinkles at the four rounded corners of the folded ring portion, reduce high-order harmonic distortion, and improve the fatigue resistance of the diaphragm, thereby improving the acoustic performance of the sound-emitting device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

本实用新型提供一种振膜，其包括位于中间位置的振动部、围绕振动部并与振动部连接的折环部以及由折环部远离振动部的一侧弯折延伸的固定部，折环部上自靠近振动部的一侧至远离振动部的一侧依次设有第一花纹群和第二花纹群；第一花纹群包括多条沿折环部的内侧周向间隔排布的第一花纹，每一所述第一花纹由所述折环部的中部向远离固定部方向延伸至所述振动部并与所述振动部连接；第二花纹群包括多条沿所述折环部的外侧周向间隔排布的第二花纹，每一所述第二花纹由所述折环部的中部向所述固定部方向延伸。与相关技术相比，本实用新型的振膜的应力分布均匀，高次谐频失真低，可靠性高。

Description

振膜及发声器件 技术领域
本实用新型涉及电声领域，尤其涉及一种振膜及发声器件。
 背景技术
随着电子信息技术的快速发展，越来越多的发声器件应用于各类电子产品上，尤其是广为人们应用的移动通讯设备，人们不但关心其微型化、多功能，更要求其语音效果高质量、无失真。而振膜作为发声器件的核心部件，其设计的好坏直接影响着声学器件的性能。
然而，现有技术中的振膜包括位于中间位置的振动部、自所述振动部向外延伸并凸起的折环部及与折环部相连的固定部；而所述振膜的折环部设置有弧形部，弧形部在振动时容易产生褶皱，振膜的振动幅度越大，褶皱的数量越多，导致所述振膜上的应力分布不均匀，振动不平稳，致使振膜出现破裂的几率也越大，极大的影响了振膜的可靠性。
因此，实有必要提供一种新的振膜及发声器件解决上述技术问题。
 技术问题
本实用新型的目的在于提供一种有利于改善高次谐频失真，且可靠性高的振膜及发声器件。
 技术解决方案
为了达到上述目的，本实用新型提供了一种振膜，其包括位于中间位置的振动部、围绕所述振动部并与所述振动部连接的折环部以及由所述折环部远离所述振动部的一侧弯折延伸的固定部，所述折环部上自靠近所述振动部的一侧至远离所述振动部的一侧依次设有第一花纹群和第二花纹群；所述第一花纹群包括多条沿所述折环部的内侧周向间隔排布的第一花纹，每一所述第一花纹由所述折环部的中部向远离所述固定部方向延伸至所述振动部并与所述振动部连接；所述第二花纹群包括多条沿所述折环部的外侧周向间隔排布的第二花纹，每一所述第二花纹由所述折环部的中部向所述固定部方向延伸。
优选的，所述第一花纹与所述振动部平滑过渡连接。
优选的，在所述第一花纹与所述振动部的连接处，相邻所述第一花纹平滑过渡连接。
优选的，所述第一花纹与所述第二花纹沿所述折环部的周向呈交错间隔排布。
优选的，所述第二花纹靠近所述固定部的一端与所述固定部间隔设置。
优选的，所述折环部呈带圆角的矩形结构，所述折环部包括平行于其长轴方向设置的两个第一边、平行于其短轴方向设置的两个第二边以及连接相邻的所述第一边和所述第二边的圆角；所述第一花纹群和所述第二花纹群均分布在所述圆角处。
优选的，所述第一边和所述第二边分别设有第三花纹群和第四花纹群；所述第三花纹群包括至少两条间隔排布的第三花纹，所述第四花纹群包括至少两条间隔排布的第四花纹，所述第三花纹和所述第四花纹均自靠近所述振动部的一侧延伸至靠近所述固定部的一侧。
优选的，每一所述第三花纹包括两条交叉设置的第三子花纹，每一所述第四花纹包括两条交叉设置的第四子花纹。
优选的，所述第一花纹、所述第二花纹、所述第三花纹以及所述第四花纹均为与所述折环部的凸起方向相反的凹花纹。
优选的，所述第一花纹和所述第二花纹均为与所述折环部的凸起方向相同的凸花纹。
 有益效果
与相关技术相比，本实用新型的振膜及发声器件，所述振膜的折环部的内外侧分别设置有多条间隔排布第一花纹和第二花纹，且所述第一花纹由所述折环部的中部向远离所述固定部方向延伸至所述振动部并与所述振动部连接；当所述振膜振动时，该结构的设置，使所述振膜上的应力分布均匀，从而使所述振膜能够平稳振动，防止所述振膜因振动不平稳产生破裂，并降低了所述振膜与其他部件的分离的风险，进而提高了发声器件的可靠性；另一方面，上述结构的设置，还能有效避免所述折环部的四个圆角处出现褶皱，降低了高次谐波失真，提高了振膜的抗疲劳强度，从而使所述发声器件的声学性能更优。
 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为本实用新型第一实施方式的振膜的立体结构示意图；
图2为图1所示振膜的俯视图；
图3为图2中A所示部分的放大图；
图4为本实用新型第二实施方式的振膜的立体结构示意图；
图5为图4所示振膜的俯视图；
图6为图5中B所示部分的放大图。
 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。
实施例1
请参考图1-3所示，本实用新型提供一种振膜10，其包括位于中间位置的振动部1、围绕所述振动部1并与所述振动部1连接的折环部2以及由所述折环部2远离所述振动部1的一侧弯折延伸的固定部3。
所述折环部2上自靠近所述振动部1的一侧至远离所述振动部1的一侧依次设有第一花纹群4和第二花纹群5；
所述第一花纹群4包括多条沿所述折环部2的内侧周向间隔排布的第一花纹41，每一所述第一花纹41由所述折环部2的中部向远离所述固定部3方向延伸至所述振动部1并与所述振动部1连接；
在本实施例中，所述第一花纹41与所述振动部1平滑过渡连接，例如，所述第一花纹41与所述振动部1的连接处呈倒角设置，当然，不限于此。且在所述第一花纹41与所述振动部1的连接处，相邻所述第一花纹41平滑过渡连接。
所述第二花纹群5包括多条沿所述折环部2的外侧周向间隔排布的第二花纹51，每一所述第二花纹51由所述折环部2的中部向所述固定部3方向延伸，且所述第二花纹51靠近所述固定部3的一端与所述固定部3间隔设置。
在本实施例中，所述第一花纹41与所述第二花纹51沿所述折环部2的周向呈交错间隔排布。
具体的，所述折环部2呈带圆角的矩形结构，所述折环部2包括平行于其长轴方向设置的两个第一边21、平行于其短轴方向设置的两个第二边22以及连接相邻的所述第一边21和所述第二边22的圆角23，所述第一花纹群4和所述第二花纹群5均分布在所述圆角23处。
上述结构中，所述折环部2的内外侧分别设置有多条间隔排布第一花纹41和第二花纹51，且所述第一花纹41由所述折环部2的中部向远离所述固定部3方向延伸至所述振动部1并与所述振动部1连接；当所述振膜10振动时，该结构的设置，使所述振膜10上的应力分布均匀，从而使所述振膜10能够平稳振动，防止所述振膜10因振动不平稳产生破裂，并降低了所述振膜10与其他部件的分离的风险，进而提高应用该振膜的发声器件的可靠性；另一方面，上述结构的设置，还能有效避免所述折环部2的四个圆角处出现褶皱，降低了高次谐波失真，提高了振膜的抗疲劳强度，从而使应用该振膜的发声器件的声学性能更优。
更优的，为了进一步的提高所述振膜10的可靠性，在本实施例中，所述第一边21和所述第二边22分别设有第三花纹群6和第四花纹群7；所述第三花纹群6包括至少两条间隔排布的第三花纹61，所述第四花纹群7包括至少两条间隔排布的第四花纹71，所述第三花纹61和所述第四花纹71均自靠近所述振动部1的一侧延伸至靠近所述固定部3的一侧。
进一步的，每一所述第三花纹61包括两条交叉设置的第三子花纹611，每一所述第四花纹71包括两条交叉设置的第四子花纹711。
在本实施例中，所述第一花纹41、所述第二花纹51、所述第三花纹61以及所述第四花纹71均为与所述折环部2的凸起方向相反的凹花纹。该结构的设置，提高了所述振膜的顺性，进而使所述振膜10的振动更为平稳。
在本实施例中，所述第一花纹41沿所述振膜10振动方向的剖面形状为V形；所述第二花纹51沿所述振膜振动方向的剖面形状为圆弧形；所述第三花纹61和所述第四花纹71沿所述振膜10振动方向的剖面形状为U形。所述第一花纹41的平面形状为半月牙形；所述第二花纹51的平面形状为椭圆形；当然，所述第一花纹41、所述第二花纹51、所述第三花纹61以及所述第四花纹71沿所述振膜10振动方向的剖面形状及水平形状不限于此，可根据实际情况进行设计。
实施例2
请参考图4-6所示，实施例2的振膜10A与实施例1的振膜10基本相同，两者相同的部分在此不再一一赘述，与实施例1的振膜10相比，实施例2与实施例1仅花纹结构不同，以下对实施例2的花纹结构进行展开说明。
所述振膜10A包括位于中间位置的振动部1A、围绕所述振动部1A并与所述振动部1A连接的折环部2A以及由所述折环部2A远离所述振动部1A的一侧弯折延伸的固定部3A;
所述折环部2A上自靠近所述振动部1A的一侧至远离所述振动部1A的一侧依次设有第一花纹群4A和第二花纹群5A；
具体的，所述第一花纹群4A包括多条沿所述折环部2A的内侧周向间隔排布的第一花纹41A，每一所述第一花纹41A由所述折环部2A的中部向远离所述固定部3A方向延伸至所述振动部1A并与所述振动部1A连接;所述第二花纹群5A包括多条沿所述折环部2A的外侧周向间隔排布的第二花纹51A，每一所述第二花纹51A由所述折环部2A的中部向所述固定部3A方向延伸，且所述第二花纹51A靠近所述固定部3A的一端与所述固定部3A间隔设置。
所述折环部2A呈带圆角的矩形结构，所述折环部2A包括平行于其长轴方向设置的两个第一边21A、平行于其短轴方向设置的两个第二边22A以及连接相邻的所述第一边21A和所述第二边22A的圆角23A，所述第一花纹群4A和所述第二花纹群5A均分布在所述圆角23A处.
进一步的，所述第一边21A和所述第二边22A分别设有第三花纹群6A和第四花纹群7A；所述第三花纹群6A包括至少两条间隔排布的第三花纹61A，所述第四花纹群7A包括至少两条间隔排布的第四花纹71A，所述第三花纹61A和所述第四花纹71A均自靠近所述振动部1A的一侧延伸至靠近所述固定部3A的一侧。
在本实施例中，所述第一花纹41A和所述第二花纹51A与所述折环部2A的凸起方向相同的凸花纹，所述第三花纹61A以及所述第四花纹71A均为所述折环部2A的凸起方向相反的凹花纹。该结构的设置，提高了所述振膜10A的顺性，进而使所述振膜10A的振动更为平稳。
与相关技术相比，本实用新型的振膜及发声器件，所述振膜的折环部的内外侧分别设置有多条间隔排布第一花纹和第二花纹，且所述第一花纹由所述折环部的中部向远离所述固定部方向延伸至所述振动部并与所述振动部连接；当所述振膜振动时，该结构的设置，使所述振膜上的应力分布均匀，从而使所述振膜能够平稳振动，防止所述振膜因振动不平稳产生破裂，并降低了所述振膜与其他部件的分离的风险，进而提高了发声器件的可靠性；另一方面，上述结构的设置，还能有效避免所述折环部的四个圆角处出现褶皱，降低了高次谐波失真，提高了振膜的抗疲劳强度，从而使所述发声器件的声学性能更优。
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 (10)

  1. 一种振膜，其包括位于中间位置的振动部、围绕所述振动部并与所述振动部连接的折环部以及由所述折环部远离所述振动部的一侧弯折延伸的固定部，其特征在于，所述折环部上自靠近所述振动部的一侧至远离所述振动部的一侧依次设有第一花纹群和第二花纹群；所述第一花纹群包括多条沿所述折环部的内侧周向间隔排布的第一花纹，每一所述第一花纹由所述折环部的中部向远离所述固定部方向延伸至所述振动部并与所述振动部连接；所述第二花纹群包括多条沿所述折环部的外侧周向间隔排布的第二花纹，每一所述第二花纹由所述折环部的中部向所述固定部方向延伸。
  2. 根据权利要求1所述的振膜，其特征在于，所述第一花纹与所述振动部平滑过渡连接。
  3. 根据权利要求1所述的振膜，其特征在于，在所述第一花纹与所述振动部的连接处，相邻所述第一花纹平滑过渡连接。
  4. 根据权利要求1所述的振膜，其特征在于，所述第一花纹与所述第二花纹沿所述折环部的周向呈交错间隔排布。
  5. 根据权利要求4所述的振膜，其特征在于，所述第二花纹靠近所述固定部的一端与所述固定部间隔设置。
  6. 根据权利要求1所述的振膜，其特征在于，所述折环部呈带圆角的矩形结构，所述折环部包括平行于其长轴方向设置的两个第一边、平行于其短轴方向设置的两个第二边以及连接相邻的所述第一边和所述第二边的圆角；所述第一花纹群和所述第二花纹群均分布在所述圆角处。
  7. 根据权利要求6所述的振膜，其特征在于，所述第一边和所述第二边分别设有第三花纹群和第四花纹群；所述第三花纹群包括至少两条间隔排布的第三花纹，所述第四花纹群包括至少两条间隔排布的第四花纹，所述第三花纹和所述第四花纹均自靠近所述振动部的一侧延伸至靠近所述固定部的一侧。
  8. 根据权利要求7所述的振膜，其特征在于，每一所述第三花纹包括两条交叉设置的第三子花纹，每一所述第四花纹包括两条交叉设置的第四子花纹。
  9. 根据权利要求7所述的振膜，其特征在于，所述第一花纹、所述第二花纹、所述第三花纹以及所述第四花纹均为与所述折环部的凸起方向相反的凹花纹。
  10. 根据权利要求7所述的振膜，其特征在于，所述第一花纹和所述第二花纹均为与所述折环部的凸起方向相同的凸花纹。
PCT/CN2020/128072 2020-09-30 2020-11-11 振膜及发声器件 Ceased WO2022067982A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202022222441.XU CN213661914U (zh) 2020-09-30 2020-09-30 振膜
CN202022222441.X 2020-09-30

Publications (1)

Publication Number Publication Date
WO2022067982A1 true WO2022067982A1 (zh) 2022-04-07

Family

ID=76700230

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/128072 Ceased WO2022067982A1 (zh) 2020-09-30 2020-11-11 振膜及发声器件

Country Status (2)

Country Link
CN (1) CN213661914U (zh)
WO (1) WO2022067982A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120002838A1 (en) * 2007-07-25 2012-01-05 Lars Goller Flat subwoofer
CN206908822U (zh) * 2017-06-20 2018-01-19 歌尔科技有限公司 振膜及设有该振膜的微型发声器
CN207266276U (zh) * 2017-07-11 2018-04-20 歌尔科技有限公司 振膜及设有该振膜的微型发声器
CN208638638U (zh) * 2018-08-04 2019-03-22 瑞声科技(新加坡)有限公司 扬声器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120002838A1 (en) * 2007-07-25 2012-01-05 Lars Goller Flat subwoofer
CN206908822U (zh) * 2017-06-20 2018-01-19 歌尔科技有限公司 振膜及设有该振膜的微型发声器
CN207266276U (zh) * 2017-07-11 2018-04-20 歌尔科技有限公司 振膜及设有该振膜的微型发声器
CN208638638U (zh) * 2018-08-04 2019-03-22 瑞声科技(新加坡)有限公司 扬声器

Also Published As

Publication number Publication date
CN213661914U (zh) 2021-07-09

Similar Documents

Publication Publication Date Title
WO2020125171A1 (zh) 一种扬声器
WO2020000982A1 (zh) 振膜和扬声器
WO2018006535A1 (zh) 一种无源辐射器及扬声器
WO2019128423A1 (zh) 扬声器振膜及扬声器
CN205647941U (zh) 一种扬声器振膜
WO2022000601A1 (zh) 一种新型振膜
WO2022110433A1 (zh) 发声器件
CN208638658U (zh) 振膜及应用该振膜的扬声器
WO2022067982A1 (zh) 振膜及发声器件
WO2018214785A1 (zh) 振膜及设有该振膜的微型发声器
CN107155158B (zh) 振膜及设有该振膜的微型发声器
WO2022067978A1 (zh) 振膜及发声器件
CN210579218U (zh) 一种柔性电路板及扬声器
CN208353598U (zh) 振膜及扬声器
TWI883596B (zh) 適用於揚聲器的振膜
WO2018103310A1 (zh) 锥盆式的扬声器膜片和扬声器
CN207150812U (zh) 振膜及设有该振膜的微型发声器
CN207266276U (zh) 振膜及设有该振膜的微型发声器
WO2008071072A1 (fr) Haut-parleur monté sur plaque de type à entraînement par le bord à membrane vibrante
CN205812348U (zh) 一种无源辐射器及扬声器
CN205610913U (zh) 振膜及设有该振膜的微型发声器
CN208638609U (zh) 振膜及具有该振膜的发声器
CN219145580U (zh) 一种振膜及扬声器
CN208353572U (zh) 振膜及扬声器
WO2018233409A1 (zh) 振膜及设有该振膜的微型发声器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20956001

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20956001

Country of ref document: EP

Kind code of ref document: A1