WO2021253553A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2021253553A1
WO2021253553A1 PCT/CN2020/102773 CN2020102773W WO2021253553A1 WO 2021253553 A1 WO2021253553 A1 WO 2021253553A1 CN 2020102773 W CN2020102773 W CN 2020102773W WO 2021253553 A1 WO2021253553 A1 WO 2021253553A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
reinforcing rib
dome
fixed
arc
Prior art date
Application number
PCT/CN2020/102773
Other languages
English (en)
French (fr)
Inventor
曾健
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2021253553A1 publication Critical patent/WO2021253553A1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to the field of electro-acoustic conversion, in particular to a sound generating device.
  • the related art sound device includes a basin frame and a vibration system fixed to the basin frame for vibrating and sounding;
  • the vibration system includes a diaphragm fixed to the basin frame, a dome attached and fixed to the diaphragm, and A voice coil connected to the dome to drive the diaphragm to vibrate and produce sound;
  • the diaphragm includes a center portion and a folding ring portion extending from the center portion and surrounding the center portion, and the dome is fixed In the central part.
  • the center part is a smooth planar structure, the bending rigidity of the center part is low.
  • the bending rigidity of the center part is insufficient, which easily leads to the opposite phase division of the inner and outer voice coils.
  • the vibration mode causes the diaphragm to produce high-frequency segmentation vibration, which may cause the diaphragm to swing when it vibrates, thereby affecting the stability of the vibration, easily causing noise or even distortion, and limiting the acoustic performance of the sound emitting device.
  • the purpose of the utility model is to overcome the above technical problems and provide a diaphragm and sound device with good stability and better acoustic performance.
  • the present invention provides a sound generating device, which includes a basin frame, a vibration system fixed to the basin frame for vibrating and sounding, the vibration system including a diaphragm fixed on one side of the basin frame and A spherical top fixed on the surface of the diaphragm and a voice coil connected to the diaphragm for driving the diaphragm to vibrate and produce sound are attached; A folding ring part and a fixing part surrounding the folding ring part, the fixing part is fixed to the basin frame, the dome is attached and fixed to the central part; the diaphragm on the side away from the dome The surface protrudes and extends away from the dome top to form a reinforcing rib.
  • the reinforcing rib includes a first section arranged at the central portion;
  • the spherical top is recessed in the direction to form a glue containing groove corresponding to the reinforcing rib portion, and the glue containing groove is filled with glue to make the spherical top and the center part glued and fixed.
  • the first section traverses the central portion, and the reinforcing rib portion further includes a second section extending from one end of the first section to crossing the folding ring section.
  • the central part includes a vibrating upper surface and a vibrating lower surface arranged opposite to each other in a direction of vibration, the dome top is attached and fixed to the vibrating lower surface, and the first section is moved away from the vibrating upper surface from the vibrating upper surface.
  • the vibrating lower surface is formed in a convex direction, and the glue containing groove is formed by recessing the vibrating lower surface in a direction away from the dome.
  • the reinforcing rib portion includes a first reinforcing rib and a second reinforcing rib intersecting with the first reinforcing rib.
  • the first reinforcing rib and the second reinforcing rib are arranged perpendicularly.
  • the first reinforcing ribs include several, and the several first reinforcing ribs are arranged parallel to each other and spaced apart; the second reinforcing ribs include several, and the several second reinforcing ribs are arranged parallel to each other and spaced apart.
  • a plurality of the first reinforcing ribs are parallel to each other and arranged at equal intervals, and a plurality of the second reinforcing ribs are parallel to each other and arranged at equal intervals.
  • the folded ring portion includes four arc segments spaced apart from each other, two first connecting segments spaced apart, and two second connecting segments spaced apart.
  • Each of the first connecting segments connects to each other.
  • Adjacent to two of the arc segments, each of the second connecting segments connects the two adjacent arc segments and is spaced apart from the two first connecting segments;
  • each of the first reinforcing ribs is from one of the The first connecting section extends in the direction of the other first connecting section and/or the second connecting section; each of the second reinforcing ribs extends from one of the second connecting sections toward the other of the second connecting sections The direction of the segment extends.
  • the diaphragm has a rectangular structure
  • the four arc segments of the folding ring portion are respectively located at the four corners of the diaphragm
  • the two first connecting segments are spaced apart from each other.
  • the two connecting sections are arranged at intervals on opposite sides of the short axis of the diaphragm; each of the first reinforcing ribs extends from one of the first connecting sections along the diaphragm
  • the short axis direction of the one extends toward the other of the first connecting section
  • each of the second reinforcing ribs extends from one of the second connecting sections to the other of the second connecting sections along the long axis direction of the diaphragm .
  • the arc segment includes an upper surface of the arc and a lower surface of the arc opposite to the upper surface of the arc, and the upper surface of the arc and/or the lower surface of the arc is convex or concave to form a characteristic pattern Mold department.
  • the surface of the diaphragm on the side away from the dome protrudes and extends away from the dome to form a reinforcing rib.
  • the reinforcing rib includes a first section arranged at the central portion. ; The surface of the first section near the top of the dome is recessed in the direction away from the top of the dome to form a glue containing groove corresponding to the reinforcing rib.
  • the glue containing groove is filled with glue to make the dome and the center part glued and fixed, through the reinforcing rib The setting can effectively improve the bending rigidity of the central part.
  • high-frequency vibration it avoids the phenomenon of divided vibration modes with opposite phases between the inner and outer sides of the voice coil, suppresses the high-frequency divisional vibration of the diaphragm, and effectively improves the vibration of the diaphragm.
  • the balance and stability of the sound-generating device improve the pure tone, distortion and swing of the sound-generating device, and make the acoustic performance of the sound-generating device better; at the same time, by setting the glue container, and glue in the glue container to make the dome and the center part Gluing and fixing effectively increase the bonding area between the diaphragm and the dome, strengthen the bonding between the two, and make the two fixed with high reliability.
  • Figure 1 is a schematic diagram of the three-dimensional structure of the sound generating device of the present invention.
  • Figure 2 is an exploded schematic diagram of part of the structure of the sound device of the present invention.
  • Figure 3 is a schematic diagram of the three-dimensional structure of the diaphragm of the present invention.
  • Fig. 4 is a schematic diagram of the three-dimensional structure of the diaphragm of the present invention from another angle;
  • Figure 5 is a cross-sectional view taken along line A-A in Figure 1;
  • Fig. 6 is an enlarged view of the part B shown in Fig. 5.
  • the present invention provides a sound generating device 100, which includes a ring-shaped basin frame 1, a vibration system 2 for vibrating and sounding, and a magnetic circuit system for driving the vibration system 2 to vibrate and sound. 3, specifically, the vibration system 2 and the magnetic circuit system 3 are fixedly supported on opposite sides of the basin frame 1, and the magnetic circuit system 3 has a magnetic gap 30.
  • the vibration system 2 includes a diaphragm 21, a dome 22, and a voice coil 23.
  • the diaphragm 21 is fixed on one side of the basin frame 1, and the dome 22 is fixed on the surface of the diaphragm 21.
  • the voice coil 23 is connected to the diaphragm 21 and inserted in the magnetic gap 30; the voice coil 23 is energized to generate an electric field and the magnetic circuit system 3 generates an electromagnetic field to form an electromagnetic field, so that the voice coil 23 moves up and down repeatedly, and then drives the diaphragm 21 to vibrate and produce sound through the voice coil 23.
  • the diaphragm 21 includes a central portion 211 at an intermediate position, a folding ring portion 212 arranged around the central portion 211, and a fixing portion 213 surrounding the folding ring portion 212; the central portion 211
  • the folding ring portion 212 is used to provide elastic support for the central portion 211 to achieve the required amplitude of the central portion 211 when the central portion 211 vibrates, and the fixing portion 213 is fixed to the basin frame 1,
  • the dome 22 is attached and fixed to the central portion 211, and the voice coil 23 is connected to the central portion 211; of course, the manner in which the voice coil is connected to the diaphragm is not limited, and it can be directly connected to the central portion It is also possible to form an indirect connection with the central part through the dome. In this embodiment, the voice coil is indirectly connected to the central part through the dome.
  • the surface of the diaphragm 21 away from the dome 22 protrudes and extends in the direction away from the dome 22.
  • the rib portion 4 includes a first section 401 arranged at the central portion 211. The arrangement of the first section 401 improves the bending rigidity of the central portion 211, thereby the overall bending rigidity of the diaphragm 21 high.
  • the diaphragm 21 has a relatively high bending stiffness, during high-frequency vibration, the voice coil 23 is prevented from generating internal and external divided vibration modes in opposite phases, and the diaphragm 21 is prevented from generating high vibration.
  • Frequency division vibration effectively improves the balance and stability of the vibration of the diaphragm 21, improves the pure tone, distortion and swing of the sound emitting device 100, and makes the acoustic performance of the sound emitting device 100 better.
  • the surface of the first section 401 on the side close to the dome 22 is recessed and formed in a direction away from the dome 22.
  • the glue containing groove 410 corresponding to the reinforcing rib portion 4 is filled with glue in the glue containing groove 410 so that the dome 22 and the central portion 211 are glued and fixed.
  • the glue groove 410 is filled with harder glue, which increases the bonding area between the central portion 211 and the dome 22, so that the adhesion between the two is better and the reliability is higher; in addition, It is possible to further increase the bending stiffness of the diaphragm 21 after being fixed to the dome 22 under the condition that the overall quality of the diaphragm 21 and the stiffness of the folding ring portion 212 are less affected, which is more effective Suppress high-frequency segmentation vibration.
  • the first section 401 is arranged across the central portion 211, and the reinforcing rib 4 further includes an end extending from the first section 401 To the second section 402 provided across the folding ring portion 212, while effectively improving the bending rigidity of the central portion 211, it also improves the bending rigidity of the folding ring portion 212; at the same time, through the first
  • the section 401 and the second section 402 are arranged so that the reinforcing rib 4 is arranged across the folding ring section 212 and the central section 211 at the same time.
  • the central section 211 includes The vibrating upper surface 2101 and the lower vibrating surface 2102 of the vibrating diaphragm 21 are arranged opposite to each other.
  • the dome 22 is attached and fixed to the lower vibrating surface 2102, and the first section 401 is moved away from the upper vibrating surface 2101.
  • the lower vibrating surface 2102 is formed in a convex direction, and the glue containing groove 410 is formed by the lower vibrating surface 2102 of the first section 401 close to the dome 22 and recessed in a direction away from the dome 22;
  • the vibration of the center portion 211 can be transmitted more quickly through the second section 402 connected to the first section 401
  • the central portion 211 and the folded ring portion 212 are better linked, which effectively improves the consistency of vibration between the central portion 211 and the folded ring portion 212, thereby further Therefore, the reliability and stability of the vibration of the diaphragm 21 are improved.
  • the reinforcing rib 4 includes The first reinforcing rib 41 and the second reinforcing rib 42 intersecting the first reinforcing rib 41 are arranged.
  • first reinforcing rib 41 and the second reinforcing rib 42 are not limited.
  • first reinforcing rib 41 and the The second reinforcing ribs 42 are arranged vertically to jointly form a crisscross integrated structure, which can better ensure the uniformity of the bending stress distribution of the central portion 211, thereby avoiding the stress caused by a specific position. Excessive bending stress results in split vibration of the central portion 211, which further improves the bending rigidity of the central portion 211.
  • first reinforcement rib and the second reinforcement rib are not arranged vertically.
  • first reinforcing ribs 41 include several, and the several first reinforcing ribs 41 are arranged parallel to each other and spaced apart;
  • second reinforcing ribs 42 include several, and the several second reinforcing ribs 42 are parallel to each other.
  • a plurality of the first reinforcing ribs 41 are arranged parallel to each other and at equal intervals.
  • a plurality of the second reinforcing ribs 42 are arranged in parallel with each other and at equal intervals, and by setting at this position, the plurality of the first reinforcing ribs 41 and the plurality of the second reinforcing ribs 42 are more evenly distributed in On the central portion 211, the bending rigidity of the central portion 211 is more effectively improved.
  • the folded ring portion 212 includes four arc segments 2121 that are spaced apart from each other, two first connecting segments 2122 that are spaced apart, and two second connecting segments 2123 that are spaced apart, each of the first connecting segments 2122 Two adjacent arc segments 2121 are connected, and each second connecting segment 2123 connects with two adjacent arc segments 2121 and is spaced apart from the two first connecting segments 2122.
  • the structure of the diaphragm 21 is not limited.
  • the diaphragm 21 has a rectangular structure, and the four arc segments 2121 of the folding ring portion 212 are located at the respective positions.
  • the two first connecting sections 2122 are arranged at intervals on opposite sides of the long axis of the diaphragm 21, and the two second connecting sections 2123 are arranged at intervals on the vibration
  • each of the first reinforcing ribs 41 extends from one of the first connecting sections 2122 to the other first connecting section 2122 in the direction of the short axis of the diaphragm 21, and each The second reinforcing rib 42 extends from one of the second connecting sections 2123 to the other second connecting section 2123 along the long axis direction of the diaphragm 21, that is, the first reinforcing rib 41 is connected to the other second connecting section 2123.
  • first reinforcing rib is not fixed.
  • first reinforcing rib it is also feasible for each first reinforcing rib to extend from one of the first connecting sections toward the second connecting section.
  • first The stiffener and the second stiffener are arranged crosswise.
  • the arc segment 2121 includes an arc upper surface 2120a and an arc upper surface 2120a located on the same side as the vibration upper surface 2101
  • the arc lower surface 2120b opposite to the arc upper surface 2120a and on the same side as the vibration lower surface 2102, the arc upper surface 2120a and/or the arc lower surface 2120b is convex or recessed to form a feature Graphic module 5.
  • the characteristic pattern mold portion 5 includes an upper pattern mold portion 51 formed by the convex or concave shape of the arc upper surface 2120a, and a lower pattern mold portion 52 formed by the convex or concave shape of the arc lower surface 2120b.
  • the upper pattern mold part 51 and the lower pattern mold part 52 are arranged directly opposite to each other.
  • the lower pattern mold portion 52 is of a groove structure. At this time, the protrusion direction of the upper pattern mold portion 51 and the lower pattern The direction of depression of the mold part 52 is the same.
  • the specific number and specific location of the upper graphic mold portion 51 and the lower graphic mold portion 52 are not limited, and specific settings can be made according to actual design requirements.
  • the upper pattern mold portion 51 includes four and is located at the position of the four arc segments 2121 of the folding ring portion 212; the lower pattern mold portion 52 includes four and is located in the The position of the arc segment 2121 of the folded ring portion 212.
  • the location of the structure improves the structural strength of the rounded corners (R angles) of the diaphragm 21, and effectively improves the problem that the rounded corners (R angles) of the diaphragm 21 are easily broken when the diaphragm 21 vibrates up and down, thereby further improving the vibration balance and Stability, to improve the pure tone, distortion and swing performance of the diaphragm 21.
  • the specific shapes and structures of the upper pattern mold portion 51 and the lower pattern mold portion 52 are only an example, but are not limited to the above examples.
  • the upper pattern The mold part is a groove structure
  • the lower pattern mold part is a corrugated structure.
  • the concave direction of the upper pattern mold part and the convex direction of the lower pattern mold part are the same; or, the upper pattern mold part and the lower pattern
  • the mold parts are all protruding or recessed structures. At this time, the protruding direction or the recessing direction of the two are opposite.
  • the surface of the diaphragm on the side away from the dome protrudes and extends away from the dome to form a reinforcing rib.
  • the reinforcing rib includes a first section arranged at the central portion. ; The surface of the first section near the top of the dome is recessed in the direction away from the top of the dome to form a glue containing groove corresponding to the reinforcing rib.
  • the glue containing groove is filled with glue to make the dome and the center part glued and fixed, through the reinforcing rib The setting can effectively improve the bending rigidity of the central part.
  • high-frequency vibration it avoids the phenomenon of divided vibration modes with opposite phases between the inner and outer sides of the voice coil, suppresses the high-frequency divisional vibration of the diaphragm, and effectively improves the vibration of the diaphragm.
  • the balance and stability of the sound-generating device improve the pure tone, distortion and swing of the sound-generating device, and make the acoustic performance of the sound-generating device better; at the same time, by setting the glue container, and glue in the glue container to make the dome and the center part Gluing and fixing effectively increase the bonding area between the diaphragm and the dome, strengthen the bonding between the two, and make the two fixed with high reliability.

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

Abstract

本实用新型提供一种发声器件，其包括盆架、固定于盆架用于振动发声的振动系统，振动系统包括固定于盆架一侧的振膜以及贴设固定于振膜表面的球顶以及连接于振膜用于驱动振膜振动发声的音圈；振膜包括位于中间位置的中心部、环绕中心部的折环部以及环绕折环部的固定部，固定部固定于盆架，球顶贴设固定于中心部；振膜远离球顶一侧的表面向远离球顶方向凸出延伸形成加强筋部，加强筋部包括设于中心部的第一段；第一段靠近球顶一侧的表面向远离球顶方向凹陷形成与加强筋部对应的容胶槽，容胶槽内填充有胶合剂以使球顶与中心部胶合固定。与相关技术相比，本实用新型的振膜及发声器件稳定性好且声学性能更优。

Description

发声器件 技术领域
本实用新型涉及电声转换领域，尤其涉及一种发声器件。
 背景技术
在移动电话等便携设备快速发展的过程中，人们对产品的功能性要求越来越强，对于移动电话等 电子设备的音乐欣赏这一功能，为了使娱乐效果更强，出现了音乐带振动的模式，由此，发声器件的发展也相应加快。
相关技术的发声器件包括盆架以及固定于所述盆架用于振动发声的振动系统；所述振动系统包括固定于所述盆架的振膜、贴设固定于所述振膜的球顶和连接于所述球顶用以驱动所述振膜振动发声的音圈；所述振膜包括中心部和由所述中心部延伸并环绕所述中心部设置的折环部，所述球顶固定于所述中心部。
 技术问题
然而，相关技术的发声器件中，由于中心部为光滑平面结构，中心部的弯曲刚度较低，在高频振动时，因中心部的弯曲刚度不足，而容易导致音圈内外侧相位相反的分割振动模态，使得振膜产生高频分割振动现象，使得振膜振动时可能产生摇摆，从而影响振动的稳定性，容易导致杂音甚至失真，造成所述发声器件的声学性能受限。
因此，有必要提供一种具有新的振膜的发声器件解决上述技术问题。
 技术解决方案
本实用新型的目的是克服上述技术问题，提供一种稳定性好且声学性能更优的振膜及发声器件。
为了达到上述目的，本实用新型提供一种发声器件，其包括盆架、固定于所述盆架用于振动发声的振动系统，所述振动系统包括固定于所述盆架一侧的振膜以及贴设固定于所述振膜表面的球顶以及连接于所述振膜用于驱动所述振膜振动发声的音圈；所述振膜包括位于中间位置的中心部、环绕所述中心部的折环部以及环绕所述折环部的固定部，所述固定部固定于所述盆架，所述球顶贴设固定于所述中心部；所述振膜远离所述球顶一侧的表面向远离所述球顶方向凸出延伸形成加强筋部，所述加强筋部包括设于所述中心部的第一段；所述第一段靠近所述球顶一侧的表面向远离所述球顶方向凹陷形成与所述加强筋部对应的容胶槽，所述容胶槽内填充有胶合剂以使所述球顶与所述中心部胶合固定。
优选的，所述第一段横穿所述中心部，所述加强筋部还包括自所述第一段的一端延伸至横穿所述折环部的第二段。
优选的，所述中心部包括沿振动方向相对设置的振动上表面和振动下表面，所述球顶贴设固定于所述振动下表面，所述第一段由所述振动上表面向远离所述振动下表面的方向凸出形成，所述容胶槽由所述振动下表面向远离所述球顶的方向凹陷形成。
优选的，所述加强筋部包括第一加强筋以及与所述第一加强筋交叉设置的第二加强筋。
优选的，所述第一加强筋与所述第二加强筋垂直设置。
优选的，所述第一加强筋包括若干个，若干个所述第一加强筋相互平行间隔设置；所述第二加强筋包括若干个，若干个所述第二加强筋相互平行间隔设置。
优选的，若干个所述第一加强筋相互平行且等间距间隔设置，若干个所述第二加强筋相互平行且等间距间隔设置。
优选的，所述折环部包括相互间隔设置的四个圆弧段、相对间隔设置的两个第一连接段以及相对间隔设置的两个第二连接段，各所述第一连接段连接相邻两个所述圆弧段，各所述第二连接段连接相邻两个所述圆弧段且分别与两个第一连接段间隔设置；各所述第一加强筋自其中一个所述第一连接段朝向另一个所述第一连接段和/或所述第二连接段的方向延伸；各所述第二加强筋自其中一个所述第二连接段朝向另一个所述第二连接段的方向延伸。
优选的，所述振膜呈矩形结构，所述折环部的四个所述圆弧段分别位于所述振膜的四个拐角的位置，两个所述第一连接段间隔设置于所述振膜长轴的相对两侧，两个所述连接段间隔设置于所述振膜短轴的相对两侧；各所述第一加强筋自其中一个所述第一连接段沿所述振膜的短轴方向向另一个所述第一连接段延伸，各所述第二加强筋自其中一个所述第二连接段沿所述振膜的长轴方向向另一个所述第二连接段延伸。
优选的，所述圆弧段包括圆弧上表面和与所述圆弧上表面相对的圆弧下表面，所述圆弧上表面和/或所述圆弧下表面凸出或凹陷形成特征图形模部。
 有益效果
与现有技术相比，本实用新型发声器件中，振膜远离球顶一侧的表面向远离球顶方向凸出延伸形成加强筋部，加强筋部包括设于所述中心部的第一段；第一段靠近球顶一侧的表面向远离球顶方向凹陷形成与加强筋部对应的容胶槽，容胶槽内填充有胶合剂以使球顶与中心部胶合固定，通过加强筋部的设置，能够有效地提高中心部的弯曲刚度，在高频振动时，避免了音圈产生内外侧相位相反的分割振动模态现象，抑制振膜产生高频分割振动，有效提高了振膜振动的平衡性及稳定性，改善了发声器件的纯音、失真及摇摆，使得发声器件的声学性能更优；同时，通过设置容胶槽，并在容胶槽内打胶以使球顶与中心部胶合固定，有效地增大了振膜和球顶之间的粘接面积，增强了两者之间的粘接更好，使得两者固定可靠性高。
 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为本实用新型的发声器件的立体结构示意图；
图2为本实用新型的发声器件的部分结构分解示意图；
图3为本实用新型的振膜的立体结构示意图；
图4为本实用新型的振膜另一角度的立体结构示意图；
图5为图1中沿A-A线的剖示图；
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。
请参阅图1-6，本实用新型提供一种发声器件100，其包括呈环状的盆架1、用于振动发声的振动系统2以及用于驱动所述振动系统2振动发声的磁路系统3，具体的，所述振动系统2和所述磁路系统3分别固定支撑于所述盆架1的相对两侧，所述磁路系统3具有磁间隙30。
所述振动系统2包括振膜21、球顶22和音圈23，所述振膜21固定于所述盆架1的一侧，所述球顶22贴设固定于所述振膜21表面，所述音圈23连接于所述振膜21并插设于所述磁间隙30内；所述音圈23通电产生电场与所述磁路系统3产生磁场共同作用形成电磁场，从而使所述音圈23上下反复运动，进而通过所述音圈23驱动所述振膜21振动发声。
在本实施方式中，所述振膜21包括位于中间位置的中心部211、环绕所述中心部211设置的折环部212以及环绕所述折环部212的固定部213；所述中心部211用于振动发声，所述折环部212用于为所述中心部211振动时提供弹性支撑力以实现所述中心部211所需的振幅，所述固定部213固定于所述盆架1，所述球顶22贴设固定于所述中心部211，所述音圈23连接于所述中心部211；当然，音圈与振膜连接的方式是不限的，其可以与中心部直接连接，也可以通过球顶与中心部形成间接连接，在本实施方式中，音圈通过球顶与中心部形成间接连接。
为了提高所述振膜21的整体弯曲刚度，在本实施方式中，所述振膜21远离所述球顶22一侧的表面向远离所述球顶22方向凸出延伸形成的加强筋部4，所述加强筋部4包括设于所述中心部211的第一段401，通过所述第一段401的设置，提高了所述中心部211的弯曲刚度，从而振膜21的整体弯曲刚度高。
上述结构中，由于所述振膜21具有较高的弯曲刚度，在高频振动时，避免了所述音圈23产生内外侧相位相反的分割振动模态现象，抑制所述振膜21产生高频分割振动，有效提高了所述振膜21振动的平衡性及稳定性，改善了所述发声器件100的纯音、失真及摇摆，使得所述发声器件100的声学性能更优。
同时，为了提高所述振膜21与所述球顶22之间固定的可靠性，所述第一段401靠近所述球顶22一侧的表面向远离所述球顶22方向凹陷形成与所述加强筋部4对应的容胶槽410，通过所述容胶槽410内填充有胶合剂以使所述球顶22与所述中心部211胶合固定，通过在所述加强筋部4的容胶槽410内填充较硬的胶水，增大了所述中心部211与所述球顶22之间的粘接面积，使得两者之间的粘合性更好，可靠性更高；另外，可以在对所述振膜21的整体质量和所述折环部212的刚度影响较小的情况下，进一步地增加与所述球顶22固定后的所述振膜21的弯曲刚度，更有效地抑制高频分割振动。
更优的，为了进一步提高所述振膜21的整体弯曲刚度，将所述第一段401横穿所述中心部211设置，所述加强筋4还包括自所述第一段401的一端延伸至横穿所述折环部212设置的第二段402，在有效提高所述中心部211的弯曲刚度的同时，亦提高了所述折环部212的弯曲刚度；同时，通过所述第一段401和所述第二段402的设置，即使得所述加强筋部4同时横跨所述折环部212和所述中心部211设置，更具体的，所述中心部211包括沿所述振膜21的振动方向相对设置的振动上表面2101和振动下表面2102，所述球顶22贴设固定于所述振动下表面2102，所述第一段401由所述振动上表面2101向远离所述振动下表面2102的方向凸出形成，所述容胶槽410由所述第一段401靠近所述球顶22一侧的振动下表面2102向远离所述球顶22的方向凹陷形成；在此，由于所述第一段401和所述第二段402为一体结构，通过与所述第一段401连接的所述第二段402能够更快地将所述中心部211的振动传递到所述折环部212，使得所述中心部211和所述折环部212更好地联动，有效地提高所述中心部211和所述折环部212之间振动的一致性，从而进一步地提高所述振膜21振动的可靠性和稳定性。
需要说明的是，所述加强筋部4的数量及位置的具体设置是不限的，其可以根据实际使用的需求进行具体的设置，比如，在本实施方中，所述加强筋部4包括第一加强筋41以及与所述第一加强筋41交叉设置的第二加强筋42。
值得一提的是，所述第一加强筋41和所述第二加强筋42之间的相对位置关系是不限的，比如，在本实施方式中，所述第一加强筋41与所述第二加强筋42垂直设置以共同形成纵横交错的一体结构，该纵横交错的一体结构更好地保证所述中心部211的弯曲应力分布的均匀性，从而避免了由于某个特定位置所受的弯曲应力过大，而导致所述中心部211发生分割振动的现象，进一步地提高了所述中心部211弯曲刚度。当然，在其他实施方式中，第一加强筋和第二加强筋不垂直设置也是可行的。
进一步的，所述第一加强筋41包括若干个，若干个所述第一加强筋41相互平行间隔设置；所述第二加强筋42包括若干个，若干个所述第二加强筋42相互平行间隔设置，使得若干个所述第一加强筋41和若干个所述第二加强筋42形成交叉设置的一体结构，且该交叉设置的一体结构铺满整个所述中心部211，在实际应用时，能够更好地使得所述中心部211所受的弯曲应力更加分散在所述中心部211上，更进一步地提高了所述中心部211弯曲刚度。为了将所述中心部211所受的弯曲应力更好地分散在所述中心部211上，在本实施方式中，优选的，将若干个所述第一加强筋41相互平行且等间距间隔设置，将若干个所述第二加强筋42相互平行且等间距间隔设置，通过该位置设置，使的若干个所述第一加强筋41和若干个所述第二加强筋42更加均匀地分布在所述中心部211上，更有效地提高所述中心部211的弯曲刚度若干个。
为了更好地了解所述第一加强筋41和所述第二加强筋42的位置及其延伸方向，下面结合所述折环部212的具体结构对其展开详细的说明：
所述折环部212包括相互间隔设置的四个圆弧段2121、相对间隔设置的两个第一连接段2122以及相对间隔设置的两个第二连接段2123，各所述第一连接段2122连接相邻两个所述圆弧段2121，各所述第二连接段2123连接相邻两个所述圆弧段2121且分别与两个第一连接段2122间隔设置。
进一步的，所述振膜21的结构形式是不限，比如，在本实施方中，所述振膜21呈矩形结构，所述折环部212的四个所述圆弧段2121分别位于所述振膜21的四个拐角的位置，两个所述第一连接段2122间隔设置于所述振膜21长轴的相对两侧，两个所述第二连接段2123间隔设置于所述振膜21短轴的相对两侧，各所述第一加强筋41自其中一个所述第一连接段2122沿所述振膜21的短轴方向向另一个所述第一连接段2122延伸，各所述第二加强筋42自其中一个所述第二连接段2123沿所述振膜21的长轴方向向另一个所述第二连接段2123延伸，即使得所述第一加强筋41与所述第二加强筋42垂直设置。
当然，第一加强筋的延伸方向是不定的，比如，在其他实施方式中，各第一加强筋自其中一个第一连接段朝向第二连接段的方向延伸也是可行的，此时，第一加强筋与第二加强筋交叉设置。
为了调节改善振膜21的纯音、失真、稳定性、振动平衡性等声学性能，本实施方式中，所述圆弧段2121包括与所述振动上表面2101位于同一侧的圆弧上表面2120a和与所述圆弧上表面2120a相对且与所述振动下表面2102位于同一侧的圆弧下表面2120b，所述圆弧上表面2120a和/或所述圆弧下表面2120b凸出或凹陷形成特征图形模部5。
所述特征图形模部5包括由所述圆弧上表面2120a凸出或凹陷形成的上图形模部51以及由所述圆弧下表面2120b凸出或凹陷形成的下图形模部52，所述上图形模部51和所述下图形模部52正对设置。
在本实施方式中，所述上图形模部51为凸楞结构时，所述下图形模部52为凹槽结构，此时，所述上图形模部51的凸出方向和所述下图形模部52的凹陷方向相同。
值得一提的是，所述上图形模部51和所述下图形模部52具体的数量及具体设置的位置是不限的，其可以根据实际设计的需要进行具体的设置，比如，在本实施方式中，所述上图形模部51包括四个且分别位于所述折环部212的四个所述圆弧段2121的位置；所述下图形模部52包括四个且分别位于所述折环部212的所述圆弧段2121的位置。该结构位置的设置，提升了振膜21圆角（R角）处的结构强度，有效改善了振膜21上下振动时圆角（R角）处容易打折的问题，从而进一步改善振动平衡性及稳定性，改善振膜21的纯音、失真及摇摆性能。
当然，上图形模部51和下图形模部52的具体形状结构仅为一种举例，但并不限于上述举例，在其他同时设置上图形模部和下图形模部的实施方式中，上图形模部为凹槽结构，下图形模部为凸楞结构是可行的，此时，上图形模部的凹陷方向和下图形模部的凸出方向相同；又或者，上图形模部和下图形模部均为凸楞结构或凹槽结构也是可行的，此时，两者的凸出方向或凹陷方向相反。当然，在其他的实施方式中，仅设置上图形模部和下图形模部的其中一个也是可行的。
与现有技术相比，本实用新型发声器件中，振膜远离球顶一侧的表面向远离球顶方向凸出延伸形成加强筋部，加强筋部包括设于所述中心部的第一段；第一段靠近球顶一侧的表面向远离球顶方向凹陷形成与加强筋部对应的容胶槽，容胶槽内填充有胶合剂以使球顶与中心部胶合固定，通过加强筋部的设置，能够有效地提高中心部的弯曲刚度，在高频振动时，避免了音圈产生内外侧相位相反的分割振动模态现象，抑制振膜产生高频分割振动，有效提高了振膜振动的平衡性及稳定性，改善了发声器件的纯音、失真及摇摆，使得发声器件的声学性能更优；同时，通过设置容胶槽，并在容胶槽内打胶以使球顶与中心部胶合固定，有效地增大了振膜和球顶之间的粘接面积，增强了两者之间的粘接更好，使得两者固定可靠性高。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (10)

  1. 一种发声器件，其包括盆架、固定于所述盆架用于振动发声的振动系统，所述振动系统包括固定于所述盆架一侧的振膜以及贴设固定于所述振膜表面的球顶以及连接于所述振膜用于驱动所述振膜振动发声的音圈；所述振膜包括位于中间位置的中心部、环绕所述中心部的折环部以及环绕所述折环部的固定部，所述固定部固定于所述盆架，所述球顶贴设固定于所述中心部，其特征在于，所述振膜远离所述球顶一侧的表面向远离所述球顶的方向凸出延伸形成加强筋部，所述加强筋部包括设于所述中心部的第一段；所述第一段靠近所述球顶一侧的表面向远离所述球顶的方向凹陷形成与所述加强筋部对应的容胶槽，所述容胶槽内填充有胶合剂以使所述球顶与所述中心部胶合固定。
  2. 根据权利要求1所述的发声器件，其特征在于，所述第一段横穿所述中心部，所述加强筋部还包括自所述第一段的一端延伸至横穿所述折环部的第二段。
  3. 根据权利要求2所述的发声器件，其特征在于，所述中心部包括沿振动方向相对设置的振动上表面和振动下表面，所述球顶贴设固定于所述振动下表面，所述第一段由所述振动上表面向远离所述振动下表面的方向凸出形成，所述容胶槽由所述振动下表面向远离所述球顶的方向凹陷形成。
  4. 根据权利要求1-3任一项所述的发声器件，其特征在于，所述加强筋部包括第一加强筋以及与所述第一加强筋交叉设置的第二加强筋。
  5. 根据如权利要求4所述的发声器件，其特征在于，所述第一加强筋与所述第二加强筋垂直设置。
  6. 根据权利要求5所述的发声器件，其特征在于，所述第一加强筋包括若干个，若干个所述第一加强筋相互平行间隔设置；所述第二加强筋包括若干个，若干个所述第二加强筋相互平行间隔设置。
  7. 根据权利要求6所述的发声器件，其特征在于，若干个所述第一加强筋相互平行且等间距间隔设置，若干个所述第二加强筋相互平行且等间距间隔设置。
  8. 根据权利要求4所述的发声器件，其特征在于，所述折环部包括相互间隔设置的四个圆弧段、相对间隔设置的两个第一连接段以及相对间隔设置的两个第二连接段，各所述第一连接段连接相邻两个所述圆弧段，各所述第二连接段连接相邻两个所述圆弧段且分别与两个第一连接段间隔设置；各所述第一加强筋自其中一个所述第一连接段朝向另一个所述第一连接段和/或所述第二连接段的方向延伸；各所述第二加强筋自其中一个所述第二连接段朝向另一个所述第二连接段的方向延伸。
  9. 根据权利要求8所述的发声器件，其特征在于，所述振膜呈矩形结构，所述折环部的四个所述圆弧段分别位于所述振膜的四个拐角的位置，两个所述第一连接段间隔设置于所述振膜长轴的相对两侧，两个所述连接段间隔设置于所述振膜短轴的相对两侧；各所述第一加强筋自其中一个所述第一连接段沿所述振膜的短轴方向向另一个所述第一连接段延伸，各所述第二加强筋自其中一个所述第二连接段沿所述振膜的长轴方向向另一个所述第二连接段延伸。
  10. 根据权利要求8所述的发声器件，其特征在于，所述圆弧段包括圆弧上表面和与所述圆弧上表面相对的圆弧下表面，所述圆弧上表面和/或所述圆弧下表面凸出或凹陷形成特征图形模部。
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