WO2019128422A1 - Diaphragm and electroacoustic transducer - Google Patents

Diaphragm and electroacoustic transducer Download PDF

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Publication number
WO2019128422A1
WO2019128422A1 PCT/CN2018/111778 CN2018111778W WO2019128422A1 WO 2019128422 A1 WO2019128422 A1 WO 2019128422A1 CN 2018111778 W CN2018111778 W CN 2018111778W WO 2019128422 A1 WO2019128422 A1 WO 2019128422A1
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WIPO (PCT)
Prior art keywords
pattern group
pattern
corner
diaphragm
folding ring
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PCT/CN2018/111778
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French (fr)
Chinese (zh)
Inventor
李军
李栋
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歌尔股份有限公司
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Publication of WO2019128422A1 publication Critical patent/WO2019128422A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04Plane diaphragms
    • H04R7/06Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 

Definitions

  • the present invention relates to the field of electroacoustic technology, and in particular to a diaphragm and an electroacoustic transducer.
  • Electroacoustic transducers such as microspeakers, are an important acoustic component in portable electronic devices that convert acoustic signals into acoustic signals and are an energy conversion device. Electroacoustic transducers typically include a vibrating system and a magnetic circuit system that includes a diaphragm and voice coil that are combined. The diaphragm is an important part of the electroacoustic transducer and determines the quality of the conversion from electrical energy to acoustic energy. At present, the working mode of the electroacoustic transducer is divided into a speaker working mode and a receiver operating mode, and the temperature requirements of the diaphragm are different in the two working modes.
  • the embodiment of the invention provides a diaphragm and an electroacoustic transducer to meet the temperature requirements of different working modes by improving the pattern on the ring portion of the diaphragm, thereby improving the electroacoustic transducer using the diaphragm. Listening quality.
  • a diaphragm is provided, the diaphragm is rectangular, and includes: an intermediate portion and a folded portion surrounding the outer circumference of the intermediate portion;
  • the folding ring portion includes two opposite first side portions and two opposite second side portions, and a curved corner portion between the first side portion and the second side portion, the arc a corner portion and an end portion of the first side portion and the end portion of the second side portion connected thereto constitute a corner region;
  • the corner area of the folding ring portion is provided with an adjacent first pattern group and a second pattern group;
  • the first pattern group and the second pattern group each include a plurality of single patterns
  • the plurality of single patterns of the first pattern group are diverging from the outer side of the folding ring portion, and the plurality of single patterns of the second pattern group are outwardly from the inner side of the folding ring portion Divergence settings.
  • a center line of the plurality of single patterns of the first pattern group intersects a point on an outer side of the folding ring portion
  • the first pattern group is disposed adjacent to the first side portion, and the length of the plurality of single patterns of the first pattern group is from the curved corner portion toward the first side portion Gradually getting longer;
  • the second pattern group is disposed adjacent to the second side portion, and the plurality of single pattern lengths of the second pattern group are gradually shortened from the curved corner portion toward the second side portion.
  • a center line of the plurality of single patterns of the second pattern group is tangent to a same circle inside the folding ring portion, and the circle is adjacent to the curved corner portion.
  • all the center lines are equal to the tangent points of the tangent line tangent to the same circle inside the folding portion.
  • the angles of all two adjacent center lines are equal.
  • the plurality of single patterns of the first pattern group and the plurality of single patterns of the second pattern group have only one row;
  • the plurality of single patterns of the at least one of the first pattern group and the second pattern group are arranged in a plurality of rows;
  • a part of the plurality of single patterns of the at least one of the first pattern group and the second pattern group is arranged in a plurality of rows, and the other portion is arranged in a single row.
  • the single pattern arranged in a single row is arranged at intervals from the single pattern arranged in a plurality of rows.
  • the first side portion is a long side
  • the second side portion is a short side
  • the first pattern group and the second pattern group form a pattern combination unit
  • the pattern combining unit is disposed on each of the four corners of the folding ring portion;
  • the pattern combining unit on the first corner and the pattern combining unit on the second corner are mirror-symmetrical with respect to the first axis of symmetry;
  • the pattern combining unit on the second corner and the pattern combining unit on the third corner are mirror-symmetrical with respect to the second axis of symmetry;
  • the pattern combining unit on the third corner and the pattern combining unit on the fourth corner are mirror-symmetrical with respect to the first axis of symmetry;
  • first axis of symmetry is an axis of symmetry of the diaphragm in a width direction thereof;
  • the second axis of symmetry is the axis of symmetry of the diaphragm in its length direction.
  • the convex directions of the plurality of single patterns are opposite to the convex direction of the folded portion;
  • the convex directions of the plurality of single patterns are the same as the convex direction of the folded portion; or
  • the plurality of single patterns are arranged in a direction in which the convex directions are the same as and opposite to the convex direction of the folded portion.
  • an embodiment of the present invention provides an electroacoustic transducer, comprising the diaphragm of any one of the above.
  • a novel pattern design scheme is adopted, and adjacent first pattern groups and second pattern groups are disposed in a corner region of the folding ring portion, and the plurality of single patterns of the first pattern group are folded
  • the outer side of the ring portion is diverging toward the inner side, and the plurality of single patterns of the second pattern group are dispersed outward from the inner side of the folded ring portion.
  • FIG. 1 is a schematic structural view of a diaphragm provided by an embodiment of the present invention.
  • Figure 2 is a partial enlarged view of Figure 1;
  • FIG. 3 is a schematic structural diagram of an electroacoustic transducer according to an embodiment of the present invention.
  • FIG. 1 and FIG. 2 are schematic diagrams showing the structure of a diaphragm 10 according to an embodiment of the present invention. As shown in Figure 1 and Figure 2.
  • a diaphragm provided in an embodiment of the present invention has a rectangular diaphragm and includes: an intermediate portion 1 and a folded portion 2 surrounding the outer circumference of the intermediate portion 1.
  • the folding ring portion 2 includes two opposite first side portions and two opposite second side portions, and a curved corner portion between the first side portion and the second side portion, and the curved corner portion is connected thereto
  • the end of the first side portion and the end of the second side portion constitute a corner area.
  • the corner portion of the loop portion 2 is provided with a first pattern group 3 and a second pattern group 4.
  • Each of the first pattern group 3 and the second pattern group 4 includes a plurality of single patterns 5.
  • the plurality of single patterns 5 of the first pattern group 3 are dispersed toward the inner side by the outer side of the folding ring portion 2, and the plurality of single patterns 5 of the second pattern group 4 are dispersed outward from the inner side of the folding ring portion 2.
  • the inner side of the folded ring portion 2 is the side connected to the intermediate portion 1, and the side opposite to the inner side of the folded ring portion 2 is the outer side of the folded ring portion 2.
  • the vibration frequency of the outer side of the joint of the corner portion of the folded ring portion 2 and the intermediate portion 1 is large, so that the portion is easily damaged.
  • the diaphragm is operated in the normal temperature mode of operation, the inner position of the corner portion of the folded ring portion 2 and the intermediate portion 1 vibrate at a large frequency, so that the portion is easily damaged.
  • the technical solution provided by the embodiment of the present invention adopts a novel pattern design scheme, and the adjacent first pattern group 3 and the second pattern group 4 are disposed in the corner area of the folding ring portion 2, and the first pattern group 3 is The plurality of single patterns 5 are dispersed toward the inner side from the outer side of the folded ring portion 2, and the plurality of single patterns 5 of the second pattern group 4 are dispersed outward from the inner side of the folded ring portion 2.
  • the interaction of the first pattern group 3 and the second pattern group 4 enables the diaphragm to meet the temperature requirements of different working modes, effectively suppressing harmonic distortion, and can also improve the listening quality and acoustics of the electroacoustic transducer. Performance, to ensure that the speaker has good performance under two working conditions.
  • the diaphragm with this structure has high strength, which can effectively reduce the polarization phenomenon of the product.
  • an achievable manner of the first pattern group 3 and the second pattern group 4 is that, with continued reference to FIG. 1, the center line 6 of the plurality of single patterns 5 of the first pattern group 3 is in the folding portion The outside of 2 is a little bit. That is, the plurality of single patterns 5 of the first pattern group 3 are densely arranged at the outer position of the joint between the corner portion and the intermediate portion 1, and the joint strength at that portion is enhanced.
  • the center line 6 of any two single patterns 5 in the center line 6 of the plurality of single patterns 5 of the second pattern group 4 of the same group intersects one point inside the folding portion 2. That is, the plurality of single patterns 5 of the second pattern group 4 are densely arranged at the inner side of the joint between the corner portion and the intermediate portion 1, and the joint strength at that place is enhanced.
  • the first pattern group 3 is disposed near the first side portion, and the first corner portion is curved from the curved corner portion to the first side. In the direction of the portion, the lengths of the plurality of single patterns 5 of the first pattern group 3 gradually become longer.
  • the second pattern group 4 is disposed near the second side portion, and the lengths of the plurality of single patterns 5 of the second pattern group 4 are gradually shortened from the curved corner portion toward the second side portion.
  • the first side portion is a long side
  • the second side portion is a short side.
  • the extending direction of the single pattern 5 of the first pattern group 3 can be obtained by the following method: centering on the preset intersection point outside the folding ring portion 2, according to the preset
  • the angles and the number of single patterns 5 make a plurality of rays to the curved corner portions of the folding ring portion 2, and each of the rays is the center line 6 of a single pattern 5.
  • a single pattern 5 having a length gradually lengthened from the curved corner portion toward the first side portion is formed across the folding ring portion 2 with the ray as the center line 6.
  • center lines 6 of the plurality of single patterns 5 of the second pattern group 4 are equal to the tangent points of the tangent point lines tangent to the same circle inside the folded ring portion 2.
  • the first pattern group 3 and the second pattern group 4 can be set on the folding ring portion 2 according to different applicable environments and requirements. For example, including but not limited to the following:
  • the plurality of single patterns 5 of the first pattern group 3 and the plurality of single patterns 5 of the second pattern group 4 have only one row.
  • the plurality of single patterns 5 of at least one of the first pattern group 3 and the second pattern group 4 are arranged in a plurality of rows.
  • a part of the plurality of single patterns 5 of at least one of the first pattern group 3 and the second pattern group 4 is arranged in a plurality of rows, and the other portion is arranged in a single row, and the single portion
  • the single pattern arranged in a row is spaced apart from the single pattern arranged in a plurality of rows.
  • the diaphragm is rectangular.
  • the first pattern group 3 and the second pattern group 4 form a pattern combination unit.
  • a pattern combining unit is provided at each of the four corners of the loop portion 2.
  • the pattern combining unit on the first corner and the pattern combining unit on the second corner are mirror-symmetrical with respect to the first axis of symmetry 7.
  • the pattern combining unit on the second corner and the pattern combining unit on the third corner are mirror-symmetrical with respect to the second axis of symmetry 8.
  • the pattern combining unit on the third triangle and the pattern combining unit on the fourth corner are mirror-symmetrical with respect to the first axis of symmetry 7.
  • the first axis of symmetry 7 is the axis of symmetry of the diaphragm in its width direction.
  • the second axis of symmetry 8 is the axis of symmetry of the diaphragm in its length direction.
  • the convex directions of the plurality of single patterns 5 are opposite to the convex directions of the folded ring portions 2.
  • the convex directions of the plurality of single patterns 5 are the same as the convex directions of the folded ring portions 2. or
  • the convex directions are the same as the convex directions of the folded ring portions 2 and the opposite single patterns 5 are arranged at intervals.
  • FIG. 3 is a schematic structural diagram of an electroacoustic transducer according to an embodiment of the present invention. As shown in Figure 3. An embodiment of the present invention also provides an electroacoustic transducer comprising the diaphragm 10 described above. The structure of the diaphragm 10 can be seen in FIGS. 1 and 2 .
  • the diaphragm 10 has a rectangular shape and includes an intermediate portion 1 and a folded portion 2 surrounding the outer periphery of the intermediate portion 1 .
  • the folding ring portion 2 includes two opposite first side portions and two opposite second side portions, and a curved corner portion between the first side portion and the second side portion, and the curved corner portion is connected thereto The end of the first side portion and the end of the second side portion constitute a corner area.
  • the corner area of the loop portion 2 is provided with an adjacent first pattern group 3 and a second pattern group 4.
  • Each of the first pattern group 3 and the second pattern group 4 includes a plurality of single patterns 5.
  • the plurality of single patterns 5 of the first pattern group 3 are dispersed toward the inner side by the outer side of the folding ring portion 2, and the plurality of single patterns 5 of the second pattern group 4 are dispersed outward from the inner side of the folding ring portion 2.
  • the diaphragm 10 is disposed above the voice coil 20, and the voice coil 20 and the diaphragm 10 are disposed on the magnetic circuit system 30.
  • the diaphragm 10 in this embodiment can be implemented by the structure provided by the above embodiments (the structure shown in FIGS. 1 and 2).
  • the technical solution provided by the embodiment provides a diaphragm for designing a new pattern, and the combination of the first pattern group and the second pattern group enables the diaphragm to meet the temperature requirements of different working modes, and effectively suppresses harmonic distortion. At the same time, the listening quality and acoustic performance of the electroacoustic transducer can be improved to ensure good performance of the speaker under two working conditions.
  • the diaphragm with this structure has high strength, which can effectively reduce the polarization phenomenon of the product.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

Embodiments of the present invention provide a diaphragm and an electroacoustic transducer. The diaphragm is rectangular and comprises a middle part and a folding ring part surrounding the periphery of the middle part. The folding ring part comprises two opposite first side parts, two opposite second side parts, and arc-shaped corner parts located between the first side parts and the second side parts; the arc-shaped corner parts form corner areas together with the ends of the first side parts and the ends of the second side parts which are connected to the arc-shaped corner parts; each corner area of the folding ring part is provided with a first pattern group and a second pattern group which are adjacent to each other; each of the first pattern group and the second pattern group comprises a plurality of single patterns; the plurality of single patterns of the first pattern group is provided to diverge from the outer side to the inner side of the folding ring part, and the plurality of single patterns of the second pattern group are provided to diverge from the inner side to the outer side of the folding ring part. The technical solution provided by the embodiments of the present invention enables a diaphragm to meet temperature requirements in different operating modes, has an effective inhibiting effect on harmonic distortion, and can also improve the audition quality and the acoustic performance of an electroacoustic transducer.

Description

一种振膜及电声转换器Diaphragm and electroacoustic transducer 技术领域Technical field
本发明涉及电声技术领域,尤其涉及一种振膜及电声转换器。The present invention relates to the field of electroacoustic technology, and in particular to a diaphragm and an electroacoustic transducer.
背景技术Background technique
电声转换器,如微型发声器,是便携式电子设备中的一个重要的声学部件,用于将声波电信号转换成声音信号传出,是一种能量转换器件。电声转换器通常包含振动系统和磁路系统,振动系统包括结合在一起的振膜和音圈。振膜是电声转换器的重要部件,决定了由电能到声能的转换质量。目前,电声转换器的工作模式分为扬声器工作模式与受话器工作模式,两种工作模式下对振膜的温度要求是不同的。Electroacoustic transducers, such as microspeakers, are an important acoustic component in portable electronic devices that convert acoustic signals into acoustic signals and are an energy conversion device. Electroacoustic transducers typically include a vibrating system and a magnetic circuit system that includes a diaphragm and voice coil that are combined. The diaphragm is an important part of the electroacoustic transducer and determines the quality of the conversion from electrical energy to acoustic energy. At present, the working mode of the electroacoustic transducer is divided into a speaker working mode and a receiver operating mode, and the temperature requirements of the diaphragm are different in the two working modes.
因此,目前大部分的电声转换器在工作时,只能在一种工作模式下工作,很难同时满足两种工作模式。如果电声转换器不能满足工作模式的温度要求,在工作时,电声转换器的听音余量较低,声学性能受到影响。Therefore, most of the current electroacoustic transducers can only work in one working mode when working, and it is difficult to satisfy both working modes at the same time. If the electroacoustic transducer does not meet the temperature requirements of the operating mode, the acoustic tolerance of the electroacoustic transducer is low and the acoustic performance is affected during operation.
发明内容Summary of the invention
本发明实施例提供一种振膜及电声转换器,以通过对振膜折环部上花纹的改进,来满足不同工作模式的温度要求,进而改进应用此种振膜的电声转换器的听音质量。The embodiment of the invention provides a diaphragm and an electroacoustic transducer to meet the temperature requirements of different working modes by improving the pattern on the ring portion of the diaphragm, thereby improving the electroacoustic transducer using the diaphragm. Listening quality.
在本发明的一个实施例,提供了一种振膜,所述振膜为矩形,包括:中间部以及环绕于所述中间部外周的折环部;In an embodiment of the present invention, a diaphragm is provided, the diaphragm is rectangular, and includes: an intermediate portion and a folded portion surrounding the outer circumference of the intermediate portion;
所述折环部包括相对的两个第一边部和相对的两个第二边部,以及位于所述第一边部和所述第二边部之间的弧形拐角部,所述弧形拐角部和与之相连的所述第一边部的端部和所述第二边部的端部构成拐角区域;The folding ring portion includes two opposite first side portions and two opposite second side portions, and a curved corner portion between the first side portion and the second side portion, the arc a corner portion and an end portion of the first side portion and the end portion of the second side portion connected thereto constitute a corner region;
所述折环部的所述拐角区域设有邻近的第一花纹组和第二花纹组;The corner area of the folding ring portion is provided with an adjacent first pattern group and a second pattern group;
所述第一花纹组及所述第二花纹组均包含有多个单花纹;The first pattern group and the second pattern group each include a plurality of single patterns;
所述第一花纹组的所述多个单花纹由所述折环部的外侧向内侧发散设置,且所述第二花纹组的所述多个单花纹由所述折环部的内侧向外侧发散设置。The plurality of single patterns of the first pattern group are diverging from the outer side of the folding ring portion, and the plurality of single patterns of the second pattern group are outwardly from the inner side of the folding ring portion Divergence settings.
可选地,所述第一花纹组的所述多个单花纹的中心线在所述折环部的外侧交于一点;Optionally, a center line of the plurality of single patterns of the first pattern group intersects a point on an outer side of the folding ring portion;
同组所述第二花纹组的所述多个单花纹的中心线中任意两个单花纹中心线在所述折环部内侧交于一点。Any two single-pattern center lines of the center lines of the plurality of single patterns of the same group of the second pattern group intersect at a point inside the folding ring portion.
可选地,所述第一花纹组靠近所述第一边部设置,自所述弧形拐角部向所述第一边部方向,所述第一花纹组的所述多个单花纹的长度逐渐变长;Optionally, the first pattern group is disposed adjacent to the first side portion, and the length of the plurality of single patterns of the first pattern group is from the curved corner portion toward the first side portion Gradually getting longer;
所述第二花纹组靠近所述第二边部设置,自所述弧形拐角部向所述第二边部的方向,所述第二花纹组的所述多个单花纹长度逐渐变短。The second pattern group is disposed adjacent to the second side portion, and the plurality of single pattern lengths of the second pattern group are gradually shortened from the curved corner portion toward the second side portion.
可选地,所述第二花纹组的所述多个单花纹的中心线均与所述折环部内侧的同一个圆相切,该圆靠近所述弧形拐角部。Optionally, a center line of the plurality of single patterns of the second pattern group is tangent to a same circle inside the folding ring portion, and the circle is adjacent to the curved corner portion.
可选地,所述第二花纹组的所述多个单花纹的中心线中,所有中心线与所述折环部内侧的同一圆相切的切点连线的切点弦均相等。Optionally, among the center lines of the plurality of single patterns of the second pattern, all the center lines are equal to the tangent points of the tangent line tangent to the same circle inside the folding portion.
可选地,所述第一花纹组的所述多个单花纹的中心线中,所有两相邻中心线的夹角均相等。Optionally, among the center lines of the plurality of single patterns of the first pattern group, the angles of all two adjacent center lines are equal.
可选地,在所述折环部的宽度方向上,所述第一花纹组的所述多个单花纹和所述第二花纹组的所述多个单花纹均只有一排;Optionally, in the width direction of the folding ring portion, the plurality of single patterns of the first pattern group and the plurality of single patterns of the second pattern group have only one row;
或者,在所述折环部的宽度方向上,所述第一花纹组与所述第二花纹组中的至少一组的所述多个单花纹为多排排列;Or, in the width direction of the folding ring portion, the plurality of single patterns of the at least one of the first pattern group and the second pattern group are arranged in a plurality of rows;
或者,在所述折环部的宽度方向上,所述第一花纹组与所述第二花纹组中的至少一组的多个单花纹的一部分为多排排列、另一部分为单排排列,且单排排列的单花纹与多排排列的单花纹间隔设置。Or, in a width direction of the folding ring portion, a part of the plurality of single patterns of the at least one of the first pattern group and the second pattern group is arranged in a plurality of rows, and the other portion is arranged in a single row. And the single pattern arranged in a single row is arranged at intervals from the single pattern arranged in a plurality of rows.
可选地,所述第一边部为长边,所述第二边部为短边。Optionally, the first side portion is a long side, and the second side portion is a short side.
可选地,所述第一花纹组及所述第二花纹组形成花纹组合单元;Optionally, the first pattern group and the second pattern group form a pattern combination unit;
所述折环部的四个角上均设有所述花纹组合单元;The pattern combining unit is disposed on each of the four corners of the folding ring portion;
第一角上的所述花纹组合单元与第二角上的所述花纹组合单元相对第一对称轴呈镜像对称;The pattern combining unit on the first corner and the pattern combining unit on the second corner are mirror-symmetrical with respect to the first axis of symmetry;
所述第二角上的所述花纹组合单元与第三角上的所述花纹组合单元相对第二对称轴呈镜像对称;The pattern combining unit on the second corner and the pattern combining unit on the third corner are mirror-symmetrical with respect to the second axis of symmetry;
所述第三角上的所述花纹组合单元与第四角上的所述花纹组合单元相对所述第一对称轴呈镜像对称;The pattern combining unit on the third corner and the pattern combining unit on the fourth corner are mirror-symmetrical with respect to the first axis of symmetry;
其中,所述第一对称轴为所述振膜在其宽度方向上的对称轴;Wherein the first axis of symmetry is an axis of symmetry of the diaphragm in a width direction thereof;
第二对称轴为所述振膜在其长度方向上的对称轴。The second axis of symmetry is the axis of symmetry of the diaphragm in its length direction.
可选地,所述多个单花纹的凸起方向均与所述折环部的凸起方向相反;或Optionally, the convex directions of the plurality of single patterns are opposite to the convex direction of the folded portion; or
所述多个单花纹的凸起方向均与所述折环部的凸起方向相同;或The convex directions of the plurality of single patterns are the same as the convex direction of the folded portion; or
所述多个单花纹中凸起方向与所述折环部的凸起方向相同及相反的单花纹间隔排布。The plurality of single patterns are arranged in a direction in which the convex directions are the same as and opposite to the convex direction of the folded portion.
相应地,本发明实施例还提供了一种电声转换器,包括上述中任一项所述的振膜。Correspondingly, an embodiment of the present invention provides an electroacoustic transducer, comprising the diaphragm of any one of the above.
本发明实施例提供的技术方案,采用了一种新型的花纹设计方案,在折环部的拐角区域设置邻近的第一花纹组和第二花纹组,第一花纹组的多个单花纹由折环部的外侧向内侧发散设置,且第二花纹组的多个单花纹由折环部的内侧向外侧发散设置。通过设置第一花纹组能够使得振膜满足高于常温的工作模式,通过设置第二花纹组能够使得振膜满足常温下的工作模式。第一花纹组与第二花纹组的共同作用使得振膜能够满足不同工作模式的温度要求,对谐波失真起有效的抑制作用,同时也可以改善电声转换器的听音质量与声学性能。According to the technical solution provided by the embodiment of the present invention, a novel pattern design scheme is adopted, and adjacent first pattern groups and second pattern groups are disposed in a corner region of the folding ring portion, and the plurality of single patterns of the first pattern group are folded The outer side of the ring portion is diverging toward the inner side, and the plurality of single patterns of the second pattern group are dispersed outward from the inner side of the folded ring portion. By setting the first pattern group, the diaphragm can be made to satisfy an operation mode higher than the normal temperature, and by providing the second pattern group, the diaphragm can be made to satisfy the operation mode at normal temperature. The combination of the first pattern group and the second pattern group enables the diaphragm to meet the temperature requirements of different working modes, effectively suppresses harmonic distortion, and can also improve the listening quality and acoustic performance of the electroacoustic transducer.
附图说明DRAWINGS
构成说明书的一部分的附图描述了本发明的实施例,并且连同说明书一起用于解释本发明的原理。The accompanying drawings, which are incorporated in FIG.
图1为本发明一实施例提供的振膜的结构示意图;1 is a schematic structural view of a diaphragm provided by an embodiment of the present invention;
图2为图1的局部放大示意图;Figure 2 is a partial enlarged view of Figure 1;
图3为本发明一实施例提供的电声转换器的结构示意图。FIG. 3 is a schematic structural diagram of an electroacoustic transducer according to an embodiment of the present invention.
具体实施方式Detailed ways
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到:除非另外具体说明,否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。Various exemplary embodiments of the present invention will now be described in detail with reference to the drawings. It should be noted that the relative arrangement of the components and steps, numerical expressions and numerical values set forth in the embodiments are not intended to limit the scope of the invention unless otherwise specified.
以下对至少一个示例性实施例的描述实际上仅仅是说明性的,决不作为对本发明及其应用或使用的任何限制。The following description of the at least one exemplary embodiment is merely illustrative and is in no way
对于相关领域普通技术人员已知的技术和设备可能不作详细讨论,但在适当情况下,所述技术和设备应当被视为说明书的一部分。Techniques and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques and devices should be considered as part of the specification.
在这里示出和讨论的所有例子中,任何具体值应被解释为仅仅是示例性的,而不是作为限制。因此,示例性实施例的其它例子可以具有不同的值。In all of the examples shown and discussed herein, any specific values are to be construed as illustrative only and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.
应注意到:相似的标号和字母在下面的附图中表示类似项,因此,一旦某一项在一个附图中被定义,则在随后的附图中不需要对其进行进一步讨论。It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in one figure, it is not required to be further discussed in the subsequent figures.
图1和图2示出了本发明一实施例提供的振膜10的结构示意图。如图1和图2所示。FIG. 1 and FIG. 2 are schematic diagrams showing the structure of a diaphragm 10 according to an embodiment of the present invention. As shown in Figure 1 and Figure 2.
本发明实施例提供的一种振膜,振膜为矩形,包括:中间部1以及环绕于中间部1外周的折环部2。A diaphragm provided in an embodiment of the present invention has a rectangular diaphragm and includes: an intermediate portion 1 and a folded portion 2 surrounding the outer circumference of the intermediate portion 1.
折环部2包括相对的两个第一边部和相对的两个第二边部,以及位于第一边部和第二边部之间的弧形拐角部,弧形拐角部和与之相连的第一边部的端部和第二边部的端部构成拐角区域。折环部2的拐角区域设有第一花纹组3和第二花纹组4。The folding ring portion 2 includes two opposite first side portions and two opposite second side portions, and a curved corner portion between the first side portion and the second side portion, and the curved corner portion is connected thereto The end of the first side portion and the end of the second side portion constitute a corner area. The corner portion of the loop portion 2 is provided with a first pattern group 3 and a second pattern group 4.
第一花纹组3及第二花纹组4均包含有多个单花纹5。Each of the first pattern group 3 and the second pattern group 4 includes a plurality of single patterns 5.
第一花纹组3的多个单花纹5由折环部2的外侧向内侧发散设置,且第二花纹组4的多个单花纹5由折环部2的内侧向外侧发散设置。The plurality of single patterns 5 of the first pattern group 3 are dispersed toward the inner side by the outer side of the folding ring portion 2, and the plurality of single patterns 5 of the second pattern group 4 are dispersed outward from the inner side of the folding ring portion 2.
这里需要说明的是,折环部2内侧为与中间部1连接的一侧,与折环部2内侧相对的一侧即折环部2的外侧。Here, it is to be noted that the inner side of the folded ring portion 2 is the side connected to the intermediate portion 1, and the side opposite to the inner side of the folded ring portion 2 is the outer side of the folded ring portion 2.
振膜在高于常温的工作模式下工作时,折环部2的拐角区域与中间部1的连接处外侧位置的振动频率大,因此该处容易损坏。振膜在常温的工 作模式下工作时,折环部2的拐角区域与中间部1连接处的内侧位置振动频率大,因此该处容易损坏。When the diaphragm is operated in an operating mode higher than the normal temperature, the vibration frequency of the outer side of the joint of the corner portion of the folded ring portion 2 and the intermediate portion 1 is large, so that the portion is easily damaged. When the diaphragm is operated in the normal temperature mode of operation, the inner position of the corner portion of the folded ring portion 2 and the intermediate portion 1 vibrate at a large frequency, so that the portion is easily damaged.
因此,本发明实施例提供的技术方案,采用了一种新型的花纹设计方案,在折环部2的拐角区域设置邻近的第一花纹组3和第二花纹组4,第一花纹组3的多个单花纹5由折环部2的外侧向内侧发散设置,且第二花纹组4的多个单花纹5由折环部2的内侧向外侧发散设置。第一花纹组3与第二花纹组4的共同作用使得振膜能够满足不同工作模式的温度要求,对谐波失真起有效的抑制作用,同时也可以改善电声转换器的听音质量与声学性能,保证两种工作状态下扬声器具有良好的性能。另外,采用该结构的振膜强度高,可有效减轻产品的偏振现象。Therefore, the technical solution provided by the embodiment of the present invention adopts a novel pattern design scheme, and the adjacent first pattern group 3 and the second pattern group 4 are disposed in the corner area of the folding ring portion 2, and the first pattern group 3 is The plurality of single patterns 5 are dispersed toward the inner side from the outer side of the folded ring portion 2, and the plurality of single patterns 5 of the second pattern group 4 are dispersed outward from the inner side of the folded ring portion 2. The interaction of the first pattern group 3 and the second pattern group 4 enables the diaphragm to meet the temperature requirements of different working modes, effectively suppressing harmonic distortion, and can also improve the listening quality and acoustics of the electroacoustic transducer. Performance, to ensure that the speaker has good performance under two working conditions. In addition, the diaphragm with this structure has high strength, which can effectively reduce the polarization phenomenon of the product.
本发明实施例中,第一花纹组3及第二纹组4的一种可实现的方式是,继续参见图1,第一花纹组3的多个单花纹5的中心线6在折环部2的外侧交于一点。也就是第一花纹组3的多个单花纹5位于拐角区域与中间部1连接处外侧位置的排列密集,增强该处的连接强度。In an embodiment of the present invention, an achievable manner of the first pattern group 3 and the second pattern group 4 is that, with continued reference to FIG. 1, the center line 6 of the plurality of single patterns 5 of the first pattern group 3 is in the folding portion The outside of 2 is a little bit. That is, the plurality of single patterns 5 of the first pattern group 3 are densely arranged at the outer position of the joint between the corner portion and the intermediate portion 1, and the joint strength at that portion is enhanced.
同组第二花纹组4的多个单花纹5的中心线6中任意两个单花纹5中心线6在折环部2内侧交于一点。也就是第二花纹组4的多个单花纹5位于拐角区域与中间部1连接处内侧位置的排列密集,增强该处的连接强度。The center line 6 of any two single patterns 5 in the center line 6 of the plurality of single patterns 5 of the second pattern group 4 of the same group intersects one point inside the folding portion 2. That is, the plurality of single patterns 5 of the second pattern group 4 are densely arranged at the inner side of the joint between the corner portion and the intermediate portion 1, and the joint strength at that place is enhanced.
如图2所示,进一步的,为了更有效的对谐波失真起有效的抑制作用,本发明实施例中,第一花纹组3靠近第一边部设置,自弧形拐角部向第一边部方向,第一花纹组3的多个单花纹5的长度逐渐变长。第二花纹组4靠近第二边部设置,自弧形拐角部向第二边部的方向,第二花纹组4的多个单花纹5长度逐渐变短。As shown in FIG. 2, in order to effectively suppress the harmonic distortion more effectively, in the embodiment of the present invention, the first pattern group 3 is disposed near the first side portion, and the first corner portion is curved from the curved corner portion to the first side. In the direction of the portion, the lengths of the plurality of single patterns 5 of the first pattern group 3 gradually become longer. The second pattern group 4 is disposed near the second side portion, and the lengths of the plurality of single patterns 5 of the second pattern group 4 are gradually shortened from the curved corner portion toward the second side portion.
具体实施时,第一边部为长边,第二边部为短边。以获取第一花纹组3中的单花纹5为例,第一花纹组3的单花纹5的延伸方向可采用如下方法获取:以折环部2的外侧的预设交点为中心,按照预设夹角及单花纹5数量向折环部2的弧形拐角部做出多个射线,每个射线即为一个单花纹5的中心线6。横跨折环部2,以射线为中心线6做出自弧形拐角部向第一边部方向,长度逐渐变长的单花纹5。继续参见图1,为了加强折环部2的拐角区域与中间部1的连接处内侧振动位置的连接强度,一种可实现的方式 是,第二花纹组4的多个单花纹5的中心线6均与折环部2内侧的同一个圆相切,该圆靠近弧形拐角部。In a specific implementation, the first side portion is a long side, and the second side portion is a short side. Taking the single pattern 5 in the first pattern group 3 as an example, the extending direction of the single pattern 5 of the first pattern group 3 can be obtained by the following method: centering on the preset intersection point outside the folding ring portion 2, according to the preset The angles and the number of single patterns 5 make a plurality of rays to the curved corner portions of the folding ring portion 2, and each of the rays is the center line 6 of a single pattern 5. A single pattern 5 having a length gradually lengthened from the curved corner portion toward the first side portion is formed across the folding ring portion 2 with the ray as the center line 6. With continued reference to FIG. 1, in order to strengthen the joint strength of the inner vibration position of the joint between the corner region of the loop portion 2 and the intermediate portion 1, an achievable manner is that the center line of the plurality of single patterns 5 of the second pattern group 4 6 are each tangent to the same circle inside the loop portion 2, which is near the curved corner portion.
进一步地,第二花纹组4的多个单花纹5的中心线6中,所有中心线6与折环部2内侧的同一圆相切的切点连线的切点弦均相等。Further, among the center lines 6 of the plurality of single patterns 5 of the second pattern group 4, all the center lines 6 are equal to the tangent points of the tangent point lines tangent to the same circle inside the folded ring portion 2.
为了加强折环部2的拐角区域与中间部1的连接处外侧振动位置的连接强度,一种可实现的方式是,第一花纹组3的多个单花纹5的中心线6中,所有两相邻中心线6的夹角均相等。In order to strengthen the joint strength of the outer vibration position of the joint of the corner portion of the loop portion 2 and the intermediate portion 1, an achievable manner is that among the center lines 6 of the plurality of single patterns 5 of the first pattern group 3, all two The angles of adjacent centerlines 6 are equal.
本发明实施例中,在折环部2上可根据不同的适用环境及需求,采用不同的设置方式设置第一花纹组3与第二花纹组4。例如,包括但不限于以下方式:In the embodiment of the present invention, the first pattern group 3 and the second pattern group 4 can be set on the folding ring portion 2 according to different applicable environments and requirements. For example, including but not limited to the following:
在折环部2的宽度方向上,第一花纹组3的多个单花纹5和第二花纹组4的多个单花纹5均只有一排。In the width direction of the loop portion 2, the plurality of single patterns 5 of the first pattern group 3 and the plurality of single patterns 5 of the second pattern group 4 have only one row.
或者,在折环部2的宽度方向上,第一花纹组3与第二花纹组4中的至少一组的多个单花纹5为多排排列。Alternatively, in the width direction of the loop portion 2, the plurality of single patterns 5 of at least one of the first pattern group 3 and the second pattern group 4 are arranged in a plurality of rows.
或者,在折环部2的宽度方向上,第一花纹组3与第二花纹组4中的至少一组的多个单花纹5的一部分为多排排列、另一部分为单排排列,且单排排列的单花纹与多排排列的单花纹间隔设置。Alternatively, in the width direction of the loop portion 2, a part of the plurality of single patterns 5 of at least one of the first pattern group 3 and the second pattern group 4 is arranged in a plurality of rows, and the other portion is arranged in a single row, and the single portion The single pattern arranged in a row is spaced apart from the single pattern arranged in a plurality of rows.
本发明实施例中,振膜为矩形,参见图1,第一花纹组3及第二花纹组4形成花纹组合单元。In the embodiment of the present invention, the diaphragm is rectangular. Referring to FIG. 1, the first pattern group 3 and the second pattern group 4 form a pattern combination unit.
折环部2的四个角上均设有花纹组合单元。A pattern combining unit is provided at each of the four corners of the loop portion 2.
第一角上的花纹组合单元与第二角上的花纹组合单元相对第一对称轴7呈镜像对称。The pattern combining unit on the first corner and the pattern combining unit on the second corner are mirror-symmetrical with respect to the first axis of symmetry 7.
第二角上的花纹组合单元与第三角上的花纹组合单元相对第二对称轴8呈镜像对称。The pattern combining unit on the second corner and the pattern combining unit on the third corner are mirror-symmetrical with respect to the second axis of symmetry 8.
第三角上的花纹组合单元与第四角上的花纹组合单元相对第一对称轴7呈镜像对称。The pattern combining unit on the third triangle and the pattern combining unit on the fourth corner are mirror-symmetrical with respect to the first axis of symmetry 7.
其中,第一对称轴7为振膜在其宽度方向上的对称轴。第二对称轴8为振膜在其长度方向上的对称轴。The first axis of symmetry 7 is the axis of symmetry of the diaphragm in its width direction. The second axis of symmetry 8 is the axis of symmetry of the diaphragm in its length direction.
进一步的,多个单花纹5的凸起方向均与折环部2的凸起方向相反。 或Further, the convex directions of the plurality of single patterns 5 are opposite to the convex directions of the folded ring portions 2. or
多个单花纹5的凸起方向均与折环部2的凸起方向相同。或The convex directions of the plurality of single patterns 5 are the same as the convex directions of the folded ring portions 2. or
多个单花纹5中凸起方向与折环部2的凸起方向相同及相反的单花纹5间隔排布。In the plurality of single patterns 5, the convex directions are the same as the convex directions of the folded ring portions 2 and the opposite single patterns 5 are arranged at intervals.
进一步地,图3示出了本发明一实施例提供的电声转换器的结构示意图。如图3所示。本发明实施例还提供了一种电声转换器,包括上述中所述的振膜10。其中,振膜10的结构可参见图1及图2,振膜10为矩形,包括:中间部1以及环绕于中间部1外周的折环部2。Further, FIG. 3 is a schematic structural diagram of an electroacoustic transducer according to an embodiment of the present invention. As shown in Figure 3. An embodiment of the present invention also provides an electroacoustic transducer comprising the diaphragm 10 described above. The structure of the diaphragm 10 can be seen in FIGS. 1 and 2 . The diaphragm 10 has a rectangular shape and includes an intermediate portion 1 and a folded portion 2 surrounding the outer periphery of the intermediate portion 1 .
折环部2包括相对的两个第一边部和相对的两个第二边部,以及位于第一边部和第二边部之间的弧形拐角部,弧形拐角部和与之相连的第一边部的端部和第二边部的端部构成拐角区域。The folding ring portion 2 includes two opposite first side portions and two opposite second side portions, and a curved corner portion between the first side portion and the second side portion, and the curved corner portion is connected thereto The end of the first side portion and the end of the second side portion constitute a corner area.
折环部2的拐角区域设有邻近的第一花纹组3和第二花纹组4。The corner area of the loop portion 2 is provided with an adjacent first pattern group 3 and a second pattern group 4.
第一花纹组3及第二花纹组4均包含有多个单花纹5。Each of the first pattern group 3 and the second pattern group 4 includes a plurality of single patterns 5.
第一花纹组3的多个单花纹5由折环部2的外侧向内侧发散设置,且第二花纹组4的多个单花纹5由折环部2的内侧向外侧发散设置。如图3所示,该振膜10设置音圈20上方,音圈20与振膜10设置在磁路系统30上。具体的,本实施例中的所述振膜10可采用上述各实施例提供的结构实现(如图1和图2示出的结构)。The plurality of single patterns 5 of the first pattern group 3 are dispersed toward the inner side by the outer side of the folding ring portion 2, and the plurality of single patterns 5 of the second pattern group 4 are dispersed outward from the inner side of the folding ring portion 2. As shown in FIG. 3, the diaphragm 10 is disposed above the voice coil 20, and the voice coil 20 and the diaphragm 10 are disposed on the magnetic circuit system 30. Specifically, the diaphragm 10 in this embodiment can be implemented by the structure provided by the above embodiments (the structure shown in FIGS. 1 and 2).
本实施例提供的技术方案因采用新型花纹设计的振膜,第一花纹组与第二花纹组的共同作用使得振膜能够满足不同工作模式的温度要求,对谐波失真起有效的抑制作用,同时也可以改善电声转换器的听音质量与声学性能,保证两种工作状态下扬声器具有良好的性能。另外,采用该结构的振膜强度高,可有效减轻产品的偏振现象。The technical solution provided by the embodiment provides a diaphragm for designing a new pattern, and the combination of the first pattern group and the second pattern group enables the diaphragm to meet the temperature requirements of different working modes, and effectively suppresses harmonic distortion. At the same time, the listening quality and acoustic performance of the electroacoustic transducer can be improved to ensure good performance of the speaker under two working conditions. In addition, the diaphragm with this structure has high strength, which can effectively reduce the polarization phenomenon of the product.
虽然已经通过示例对本发明的一些特定实施例进行了详细说明,但是本领域的技术人员应该理解,以上示例仅是为了进行说明,而不是为了限制本发明的范围。本领域的技术人员应该理解,可在不脱离本发明的范围和精神的情况下,对以上实施例进行修改。本发明的范围由所附权利要求来限定。While the invention has been described in detail with reference to the specific embodiments of the present invention, it should be understood that It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (11)

  1. 一种振膜,所述振膜为矩形,其特征在于,包括:中间部以及环绕于所述中间部外周的折环部;a diaphragm, the diaphragm is rectangular, and includes: an intermediate portion and a folding portion surrounding the outer circumference of the intermediate portion;
    所述折环部包括相对的两个第一边部和相对的两个第二边部,以及位于所述第一边部和所述第二边部之间的弧形拐角部,所述弧形拐角部和与之相连的所述第一边部的端部和所述第二边部的端部构成拐角区域;The folding ring portion includes two opposite first side portions and two opposite second side portions, and a curved corner portion between the first side portion and the second side portion, the arc a corner portion and an end portion of the first side portion and the end portion of the second side portion connected thereto constitute a corner region;
    所述折环部的所述拐角区域设有邻近的第一花纹组和第二花纹组;The corner area of the folding ring portion is provided with an adjacent first pattern group and a second pattern group;
    所述第一花纹组及所述第二花纹组均包含有多个单花纹;The first pattern group and the second pattern group each include a plurality of single patterns;
    所述第一花纹组的所述多个单花纹由所述折环部的外侧向内侧发散设置,且所述第二花纹组的所述多个单花纹由所述折环部的内侧向外侧发散设置。The plurality of single patterns of the first pattern group are diverging from the outer side of the folding ring portion, and the plurality of single patterns of the second pattern group are outwardly from the inner side of the folding ring portion Divergence settings.
  2. 根据权利要求1所述振膜,其特征在于,The diaphragm according to claim 1, wherein
    所述第一花纹组的所述多个单花纹的中心线在所述折环部的外侧交于一点;a center line of the plurality of single patterns of the first pattern group intersecting a point on an outer side of the folding ring portion;
    同组所述第二花纹组的所述多个单花纹的中心线中任意两个单花纹中心线在所述折环部内侧交于一点。Any two single-pattern center lines of the center lines of the plurality of single patterns of the same group of the second pattern group intersect at a point inside the folding ring portion.
  3. 根据权利要求1所述振膜,其特征在于,所述第一花纹组靠近所述第一边部设置,自所述弧形拐角部向所述第一边部方向,所述第一花纹组的所述多个单花纹的长度逐渐变长;The diaphragm according to claim 1, wherein said first pattern group is disposed adjacent said first side portion, said first pattern group from said curved corner portion toward said first side portion The length of the plurality of single patterns gradually becomes longer;
    所述第二花纹组靠近所述第二边部设置,自所述弧形拐角部向所述第二边部的方向,所述第二花纹组的所述多个单花纹长度逐渐变短。The second pattern group is disposed adjacent to the second side portion, and the plurality of single pattern lengths of the second pattern group are gradually shortened from the curved corner portion toward the second side portion.
  4. 根据权利要求1至3中任一项所述的振膜,其特征在于,所述第二花纹组的所述多个单花纹的中心线均与所述折环部内侧的同一个圆相切,该圆靠近所述弧形拐角部。The diaphragm according to any one of claims 1 to 3, wherein a center line of the plurality of single patterns of the second pattern group is tangent to a same circle inside the folding ring portion The circle is near the curved corner portion.
  5. 根据权利要求4所述的振膜,其特征在于,所述第二花纹组的所述多个单花纹的中心线中,所有中心线与所述折环部内侧的同一圆相切的切点连线的切点弦均相等。The diaphragm according to claim 4, wherein among the center lines of the plurality of single patterns of the second pattern group, all the center lines are tangent to the same circle inside the folding portion The tangent points of the line are equal.
  6. 根据权利要求1至3中任一所述的振膜,其特征在于,所述第一 花纹组的所述多个单花纹的中心线中,所有两相邻中心线的夹角均相等。The diaphragm according to any one of claims 1 to 3, wherein among the center lines of the plurality of single patterns of the first pattern group, the angles of all two adjacent center lines are equal.
  7. 根据权利要求1至3中任一项所述的振膜,其特征在于,在所述折环部的宽度方向上,所述第一花纹组的所述多个单花纹和所述第二花纹组的所述多个单花纹均只有一排;The diaphragm according to any one of claims 1 to 3, wherein the plurality of single patterns and the second pattern of the first pattern group in a width direction of the folding ring portion The plurality of single patterns of the group are only one row;
    或者,在所述折环部的宽度方向上,所述第一花纹组与所述第二花纹组中的至少一组的所述多个单花纹为多排排列;Or, in the width direction of the folding ring portion, the plurality of single patterns of the at least one of the first pattern group and the second pattern group are arranged in a plurality of rows;
    或者,在所述折环部的宽度方向上,所述第一花纹组与所述第二花纹组中的至少一组的所述多个单花纹的一部分为多排排列、另一部分为单排排列,且单排排列的单花纹与多排排列的单花纹间隔设置。Or, in the width direction of the folding ring portion, a part of the plurality of single patterns of the at least one of the first pattern group and the second pattern group is arranged in a plurality of rows, and the other portion is a single row Arranged, and the single pattern arranged in a single row is spaced apart from the single pattern arranged in a plurality of rows.
  8. 根据权利要求1至3中任一项所述的振膜,其特征在于,所述第一边部为长边,所述第二边部为短边。The diaphragm according to any one of claims 1 to 3, wherein the first side portion is a long side and the second side portion is a short side.
  9. 根据权利要求1至3中任一项所述的振膜,其特征在于,所述第一花纹组及所述第二花纹组形成花纹组合单元;The diaphragm according to any one of claims 1 to 3, wherein the first pattern group and the second pattern group form a pattern combination unit;
    所述折环部的四个角上均设有所述花纹组合单元;The pattern combining unit is disposed on each of the four corners of the folding ring portion;
    第一角上的所述花纹组合单元与第二角上的所述花纹组合单元相对第一对称轴呈镜像对称;The pattern combining unit on the first corner and the pattern combining unit on the second corner are mirror-symmetrical with respect to the first axis of symmetry;
    所述第二角上的所述花纹组合单元与第三角上的所述花纹组合单元相对第二对称轴呈镜像对称;The pattern combining unit on the second corner and the pattern combining unit on the third corner are mirror-symmetrical with respect to the second axis of symmetry;
    所述第三角上的所述花纹组合单元与第四角上的所述花纹组合单元相对所述第一对称轴呈镜像对称;The pattern combining unit on the third corner and the pattern combining unit on the fourth corner are mirror-symmetrical with respect to the first axis of symmetry;
    其中,所述第一对称轴为所述振膜在其宽度方向上的对称轴;Wherein the first axis of symmetry is an axis of symmetry of the diaphragm in a width direction thereof;
    第二对称轴为所述振膜在其长度方向上的对称轴。The second axis of symmetry is the axis of symmetry of the diaphragm in its length direction.
  10. 根据权利要求1至3中任一项所述的振膜,其特征在于,所述多个单花纹的凸起方向均与所述折环部的凸起方向相反;或The diaphragm according to any one of claims 1 to 3, wherein a convex direction of the plurality of single patterns is opposite to a convex direction of the folded portion; or
    所述多个单花纹的凸起方向均与所述折环部的凸起方向相同;或The convex directions of the plurality of single patterns are the same as the convex direction of the folded portion; or
    所述多个单花纹中凸起方向与所述折环部的凸起方向相同及相反的单花纹间隔排布。The plurality of single patterns are arranged in a direction in which the convex directions are the same as and opposite to the convex direction of the folded portion.
  11. 一种电声转换器,其特征在于,包括上述权利要求1至10中任一项所述的振膜。An electroacoustic transducer comprising the diaphragm according to any one of claims 1 to 10.
PCT/CN2018/111778 2017-12-29 2018-10-25 Diaphragm and electroacoustic transducer WO2019128422A1 (en)

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