WO2020133483A1 - 一种发声器件 - Google Patents

一种发声器件 Download PDF

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Publication number
WO2020133483A1
WO2020133483A1 PCT/CN2018/125792 CN2018125792W WO2020133483A1 WO 2020133483 A1 WO2020133483 A1 WO 2020133483A1 CN 2018125792 W CN2018125792 W CN 2018125792W WO 2020133483 A1 WO2020133483 A1 WO 2020133483A1
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WO
WIPO (PCT)
Prior art keywords
sound
accommodating groove
basin frame
glued
sound film
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Application number
PCT/CN2018/125792
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English (en)
French (fr)
Inventor
张古清
Original Assignee
瑞声声学科技(深圳)有限公司
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Application filed by 瑞声声学科技(深圳)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2018/125792 priority Critical patent/WO2020133483A1/zh
Publication of WO2020133483A1 publication Critical patent/WO2020133483A1/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the invention belongs to the technical field of electroacoustics, and particularly relates to a sound-emitting device.
  • the sound-generating device is a commonly used electronic component, mainly used for playing audio signals.
  • the sound film in the sound-producing device is glued to the basin frame.
  • the glue will be broken at a local position and the two will not be glued firmly; For a long time, it will overflow to both sides, and the internal overflow glue will overflow to the sound film fold ring, which will cause poor distortion of the product.
  • a first aspect of an embodiment of the present invention provides a sound-emitting device, which includes a vibrating structure, a magnetic circuit structure, and a housing accommodating the vibrating structure and the magnetic circuit structure.
  • the housing includes a basin frame and a cover connected to the basin The front cover above the frame, the vibration structure includes a sound membrane, the sound membrane is disposed between the basin frame and the front cover, the end of the basin frame near the sound membrane has a glued surface, the sound membrane The periphery is glued and fixed to the glued surface, the sound membrane includes a ball top at a central position and a folded ring portion surrounding the ball top, the basin frame includes an inner side surface near the folded ring portion and away from the folded An outer side surface of the ring portion is provided with a first accommodating groove, the first accommodating groove is recessed from the inner surface toward the direction away from the folded ring portion, and the first accommodating groove approaches the sound membrane Direction runs through the glued surface.
  • a second accommodating groove is opened on the outer surface, the second accommodating groove is recessed from the outer surface toward the vibrating structure, and the second accommodating groove penetrates toward the sound membrane The glued surface.
  • the glued surface is provided along the outer circumference of the basin frame.
  • the first accommodating groove is a continuous structure or a spaced-apart structure along the circumferential direction of the inner side surface.
  • the second accommodating groove is a continuous structure or a spaced-apart structure along the circumferential direction of the outer side surface.
  • the third accommodating groove has a continuous structure or a spaced-apart structure along the circumferential direction of the glued surface.
  • first accommodating groove, the second accommodating groove, and the third accommodating groove are square grooves, and the depth of the first accommodating groove from the inner side surface to the outer side surface is equal to or greater than 0.05 mm, The depth of the second accommodating groove from the outer side surface to the inner side surface is equal to or greater than 0.05 mm, and the first accommodating groove and the second accommodating groove are from the glued surface to a direction away from the sound film The depth is equal to or greater than 0.05mm.
  • the sound film further includes a connecting portion formed by the folding ring portion extending outward, the connecting portion is glued and fixed to the glued surface, and the first receiving groove and the second receiving groove are located in The orthographic projection on the connection part completely falls on the connection part.
  • first accommodating groove, the second accommodating groove, and the third accommodating groove are arc-shaped grooves, which are arc surfaces in the cross section passing through the center line of the sound-emitting device.
  • the present invention has the beneficial effect that the present invention is provided with a first accommodating groove on the inner side of the basin frame.
  • the extra glue will Spilled into the first accommodating groove on the inner side, the overflowing glue will not overflow onto the sound film folding ring, will not cause product distortion, and at the same time improve the sound film and basin frame glue fastness.
  • FIG. 1 is a schematic diagram of the overall structure of a sound-emitting device provided in Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of the exploded structure in FIG. 1;
  • FIG. 3 is a schematic diagram of the top structure in FIG. 1;
  • FIG. 5 is an enlarged schematic structural view of part B in FIG. 4;
  • FIG. 6 is a schematic diagram of the structure of the sound film in FIG. 1;
  • FIG. 7 is a schematic view of the structure of the basin in FIG. 1;
  • FIG. 8 is a schematic structural view of the basin stand in FIG. 1 from another angle;
  • Embodiment 9 is a schematic cross-sectional structural view of a sound-emitting device provided by Embodiment 2 of the present invention.
  • FIG. 10 is an enlarged schematic view of the part B in FIG. 9.
  • the basin frame 11, the front cover 12 and the lower clamping plate 34 form an accommodating cavity.
  • the magnetic circuit structure 3 includes a main magnetic steel 31, a pole core 32, and a side magnetic steel 33.
  • the main magnetic steel 31 and the side magnetic steel 33 are provided at the upper end of the lower clamp 34, and there are two side magnetic steels 33. The ends are symmetrically arranged, and the pole core 32 is arranged on the upper end of the main magnetic steel 31.
  • the vibration structure 2 further includes a voice coil 23 and a dome 21.
  • the voice coil 23 is sleeved with a main magnetic steel 31 and a pole core 32.
  • the dome 21 is disposed at an end of the sound film 22 away from the magnetic circuit structure 3. When the voice coil 23 is energized, the voice coil 23 drives the voice membrane 22 to vibrate and sound under the action of the magnetic force of the magnetic circuit structure 3.
  • the glue surface 111 is located on the top of the frame body of the pot rack 11 and is provided along the outer circumference of the pot rack 11 in the circumferential direction.
  • the sound film 22 includes a ball top 223 at a central position and a folded ring portion 222 surrounding the ball top 223 with the ball top 223.
  • the frame body of the basin holder 11 includes an inner side surface 114 close to the folded ring portion 222 and an outer side surface 115 away from the folded ring portion 222.
  • a first receiving groove 112 is further opened on the inner side surface 114, and the first receiving groove 112 faces from the inner side surface 114 Depressed away from the folded ring portion 222, the first accommodating groove 112 penetrates the glue surface 111 toward the sound film 22.
  • a second accommodating groove 113 is formed on the outer surface 115. The second accommodating groove 113 is recessed from the outer surface 115 toward the vibrating structure 2. The second accommodating groove 113 penetrates the adhesive surface 111 toward the sound film 22.
  • the glue When the first containing groove 112 and the second containing groove 113 When the second holding tank 113 is filled with overflowing glue, the glue will overflow further, and the problems of affecting the size and appearance and causing distortion of the product will also occur.
  • the size of the first accommodating groove 112 and the second accommodating groove 113 cannot be too large. If the size of the first accommodating groove 112 and the second accommodating groove 113 is too large, the size of the glue surface 111 is correspondingly reduced, and the sound film 22 is in contact As the area is reduced, it is difficult to ensure the stability of the sound film 22.
  • the first accommodating groove 112 and the second accommodating groove 113 may also be arc-shaped grooves, which are arc-shaped on the cross section passing through the center line of the sound-emitting device.
  • the first accommodating groove 112 has a continuous structure along the circumferential direction of the inner side surface 114
  • the second accommodating groove 113 has a continuous structure along the circumferential direction of the outer side surface 115.
  • the first accommodating groove 112 and the second accommodating groove 113 may also be spaced along the circumferential direction of the inner side 114 and the outer side 115, as long as the glue does not overflow to the inside and the outside.
  • the glue surface 111 of the sound emitting device is provided with a third accommodating groove 116.
  • the third accommodating groove 116 is recessed from the glue surface 111 in a direction away from the sound film 22.
  • the third accommodating groove 116 is spaced apart from the inner side 114 and the outer side 115.
  • the third accommodating groove 116 may be a square groove or an arc-shaped groove.
  • the third accommodating groove 116 is a continuous structure or a spaced-apart structure along the circumferential direction of the glue surface 111. Except for the above-mentioned structure, the other structures of the second embodiment are the same as those of the first embodiment, which will not be repeated here.
  • the third accommodating groove 116 can also accommodate the extra glue to prevent the glue from overflowing to the inside and the outside.

Abstract

本发明提供了一种发声器件，其包括振动结构、磁路结构以及容置振动结构和磁路结构的壳体，所述壳体包括盆架和盖接于盆架上端的前盖，振动结构包括音膜，音膜设置于盆架和前盖之间，盆架具有胶合面，音膜的周缘与胶合面胶合固定，音膜包括球顶部和折环部，盆架包括靠近折环部的内侧面和远离折环部的外侧面，内侧面上还开设有第一容纳槽，第一容纳槽自内侧面向远离折环部方向凹陷，第一容纳槽向靠近音膜的方向贯穿胶合面。在本发明中，当音膜与盆架间的胶水较多时，多出的胶水会溢到内外侧台阶中，这样外溢胶水就不会影响尺寸及外观，内溢胶水也不会溢到音膜折环上，不会造成产品失真不良，同时又提高了音膜与盆架的胶合牢度。

Description

一种发声器件 技术领域
本发明属于电声技术领域，尤其涉及一种发声器件。
 背景技术
随着科技的快速发展，音频设备的普及率越来越高，人们对音频设备的要求不仅限于视频音频的播放，更对音频设备的可靠性提出了更多要求。
在音频设备中，发声器件就是一种常用的电子元器件，主要用于音频信号的播放。相关技术中，发声器件中的音膜与盆架胶合，音膜与盆架间的胶水较少时，会在局部位置断胶而导致二者胶合不牢；音膜与盆架间的胶水较多时，会向两侧边溢出，内溢胶水会溢到音膜折环上，会造成产品失真不良。
 技术问题
本发明所要解决的技术问题为提供一种发声器件，旨在解决现有技术中发声器件的音膜与盆架间内溢胶水会溢到音膜折环上，造成产品失真不良的问题。
 技术解决方案
本发明实施例第一方面提供一种发声器件，其包括振动结构、磁路结构以及容置所述振动结构和磁路结构的壳体，所述壳体包括盆架和盖接于所述盆架上面的前盖，所述振动结构包括音膜，所述音膜设置于所述盆架和所述前盖之间，所述盆架靠近音膜的一端具有胶合面，所述音膜的周缘与所述胶合面胶合固定，所述音膜包括位于中央位置的球顶部以及环绕所述球顶部的折环部，所述盆架包括靠近所述折环部的内侧面和远离所述折环部的外侧面，所述内侧面上开设有第一容纳槽，所述第一容纳槽自所述内侧面向远离所述折环部方向凹陷，所述第一容纳槽向靠近所述音膜的方向贯穿所述胶合面。
进一步地，所述外侧面上开设有第二容纳槽，所述第二容纳槽自所述外侧面向靠近所述振动结构方向凹陷，所述第二容纳槽向靠近所述音膜的方向贯穿所述胶合面。
进一步地，所述胶合面沿所述盆架的外圈周向设置。
进一步地，所述第一容纳槽沿所述内侧面的周向为连续结构或间隔设置结构。
进一步地，所述第二容纳槽沿所述外侧面的周向为连续结构或间隔设置结构。
进一步地，所述第三容纳槽沿所述胶合面的周向为连续结构或间隔设置结构。
进一步地，所述第一容纳槽、第二容纳槽以及所述第三容纳槽为方形槽，所述第一容纳槽自所述内侧面至所述外侧面方向的深度等于或者大于0.05mm，所述第二容纳槽自所述外侧面至所述内侧面方向的深度等于或者大于0.05mm，所述第一容纳槽和所述第二容纳槽自所述胶合面至远离所述音膜方向的深度等于或者大于0.05mm。
进一步地，所述音膜还包括由所述折环部向外延伸形成的连接部所述连接部与所述胶合面胶合固定，且所述第一容纳槽和所述第二容纳槽在所述连接部上的正投影完全落在所述连接部上。
进一步地，所述第一容纳槽、所述第二容纳槽以及所述第三容纳槽为弧形槽，其在经过所述发声器件的中心线的横截面上为弧面。
 有益效果
本发明与现有技术相比，有益效果在于：本发明在盆架的内侧面设置有第一容纳槽，当音膜的周缘与盆架上端的胶合面通过胶水胶合时，多出的胶水会溢到内侧面的第一容纳槽中，内溢胶水不会溢到音膜折环上，不会造成产品失真不良，同时又提高了音膜与盆架的胶合牢度。
 附图说明
图1是本发明实施例一提供的发声器件整体结构示意图；
图2是图1中的分解结构示意图；
图3是图1中的俯视结构示意图；
图4是图1中的A-A面剖切示意图；
图5是图4中B部分的放大结构示意图；
图6是图1中的音膜结构示意图；
图7是图1中的盆架结构示意图；
图8是图1中的盆架另一个角度的结构示意图；
图9是本发明实施例二提供的发声器件剖视结构示意图；
图10是图9中B部分的放大结构示意图。
 本发明的实施方式
下面结合附图和实施方式对本发明作进一步说明。
如图1至图8所示，是本发明实施例一提供的一种发声器件，该发声器件包括振动结构2、磁路结构3以及容置振动结构2和磁路结构3的壳体1，壳体1包括盆架11和盖接于盆架11上面的前盖12，振动结构2包括音膜22，音膜22设置于盆架11和前盖12之间，盆架11靠近音膜22的一端具有胶合面111，音膜22的周缘与胶合面111胶合固定。壳体1还包括设置于盆架11底部的下夹板34，盆架11、前盖12以及下夹板34形成容置腔。磁路结构3包括主磁钢31、极芯32以及边磁钢33，主磁钢31和边磁钢33设置于下夹板34上端，边磁钢33具有两个，且在主磁钢31两端对称设置，极芯32设置于主磁钢31上端。振动结构2还包括音圈23和球顶21，音圈23套设主磁钢31和极芯32，球顶21设置在音膜22远离磁路结构3的一端。当音圈23通电后，音圈23在磁路结构3的磁场力作用下驱动音膜22振动发声。
上述实施例中，如图2所示，胶合面111位于盆架11的架体顶部，且沿盆架11的外圈周向设置。具体的，音膜22包括位于中央位置的球顶部223以及与球顶部223环绕球顶部223的折环部222。盆架11的架体包括靠近折环部222的内侧面114和远离折环部222的外侧面115，内侧面114上还开设有第一容纳槽112，第一容纳槽112自内侧面114向远离折环部222方向凹陷，第一容纳槽112向靠近音膜22的方向贯穿胶合面111。外侧面115上开设有第二容纳槽113，第二容纳槽113自外侧面115向靠近振动结构2方向凹陷，第二容纳槽113向靠近音膜22的方向贯穿胶合面111。当音膜22与盆架11间的胶水较多时，多出的胶水会溢到第一容纳槽112和第二容纳槽113中，这样外溢胶水就不会影响尺寸及外观，内溢胶水也不会溢到音膜22的折环部222上，不会造成产品失真不良，同时又提高了音膜22与盆架11的胶合牢度。
另外，如图6所示，音膜22还包括由折环部222向外延伸形成的连接部221，连接部221与胶合面111胶合固定，且第一容纳槽112和第二容纳槽113在连接部221上的正投影完全落在连接部221上。优选的，第一容纳槽112和第二容纳槽113为方形槽，第一容纳槽112自内侧面114至外侧面115方向的深度等于或者大于0.05mm，第二容纳槽113自外侧面115至内侧面114方向的深度等于或者大于0.05mm，第一容纳槽和第二容纳槽自胶合面111至远离音膜22方向的深度等于或者大于0.05mm。若第一容纳槽112和第二容纳槽113的尺寸较小时，第一容纳槽112和第二容纳槽113所能容纳的向内侧和外侧溢出的胶水较少，当第一容纳槽112和第二容纳槽113被溢出的胶水充满时，胶水又会进一步向外溢出，同样会出现影响尺寸及外观以及会造成产品失真不良的问题。第一容纳槽112和第二容纳槽113的尺寸也不能太大，若第一容纳槽112和第二容纳槽113的尺寸太大时，胶合面111的尺寸相应缩小，与音膜22的接触面积缩小，难以保证音膜22的稳固性。在其他实施方式中，第一容纳槽112和第二容纳槽113也可以为弧形槽，其在经过发声器件的中心线的横截面上为弧面。
优选的，第一容纳槽112沿内侧面114的周向为连续结构，第二容纳槽113沿外侧面115的周向为连续结构。在其他实施方式中，第一容纳槽112和第二容纳槽113也可分别沿内侧面114和外侧面115的周向间隔设置，只要保证胶水不会向内侧和外侧溢出即可。
如图9与图10所示，是本发明实施例二提供的一种发声器件。该发声器件的胶合面111设有第三容纳槽116，第三容纳槽116自胶合面111向远离音膜22方向凹陷，第三容纳槽116与内侧面114和外侧面115间隔设置。第三容纳槽116可以为方形槽或弧形槽，第三容纳槽116沿胶合面111的周向为连续结构或间隔设置结构。除上述结构外，该实施例二的其他结构均与实施例一相同，在此不再赘述。当音膜22与盆架11间的胶水较多时，第三容纳槽116同样可以容纳多出的胶水，防止胶水向内侧和外侧溢出。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (10)

  1. 一种发声器件，其包括振动结构、磁路结构以及容置所述振动结构和所述磁路结构的壳体，所述壳体包括盆架和盖接于所述盆架上端的前盖，所述振动结构包括音膜，所述音膜设置于所述盆架和所述前盖之间，所述盆架靠近音膜的一端具有胶合面，所述音膜的周缘与所述胶合面胶合固定，其特征在于，所述音膜包括位于中央位置的球顶部以及环绕所述球顶部的折环部，所述盆架包括靠近所述折环部的内侧面和远离所述折环部的外侧面，所述内侧面上开设有第一容纳槽，所述第一容纳槽自所述内侧面向远离所述折环部方向凹陷，所述第一容纳槽向靠近所述音膜的方向贯穿所述胶合面。
  2. 如权利要求1所述的发声器件，其特征在于，所述外侧面上开设有第二容纳槽，所述第二容纳槽自所述外侧面向靠近所述折环部方向凹陷，所述第二容纳槽向靠近所述音膜的方向贯穿所述胶合面。
  3. 如权利要求2所述的发声器件，其特征在于，所述胶合面设有第三容纳槽，所述第三容纳槽自所述胶合面向远离所述音膜方向凹陷，所述第三容纳槽与所述内侧面和所述外侧面间隔设置。
  4. 如权利要求1至3中任意一项所述的发声器件，其特征在于，所述胶合面沿所述盆架的外圈周向设置。
  5. 如权利要求1所述的发声器件，其特征在于，所述第一容纳槽沿所述内侧面的周向为连续结构或间隔设置结构。
  6. 如权利要求2所述的发声器件，其特征在于，所述第二容纳槽沿所述外侧面的周向为连续结构或间隔设置结构。
  7. 如权利要求3所述的发声器件，其特征在于，所述第三容纳槽沿所述胶合面的周向为连续结构或间隔设置结构。
  8. 如权利要求3所述的发声器件，其特征在于，所述第一容纳槽、第二容纳槽以及所述第三容纳槽为方形槽，所述第一容纳槽自所述内侧面至所述外侧面方向的深度等于或者大于0.05mm，所述第二容纳槽自所述外侧面至所述内侧面方向的深度等于或者大于0.05mm，所述第一容纳槽和所述第二容纳槽自所述胶合面至远离所述音膜方向的深度等于或者大于0.05mm。
  9. 如权利要求3所述的发声器件，其特征在于，所述音膜还包括由所述折环部向外延伸形成的连接部，所述连接部与所述胶合面胶合固定，且所述第一容纳槽和所述第二容纳槽在所述连接部上的正投影完全落在所述连接部上。
  10. 如权利要求3所述的发声器件，其特征在于，所述第一容纳槽、所述第二容纳槽以及所述第三容纳槽为弧形槽，其在经过所述发声器件的中心线的横截面上为弧面。
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