WO2022007171A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2022007171A1
WO2022007171A1 PCT/CN2020/114031 CN2020114031W WO2022007171A1 WO 2022007171 A1 WO2022007171 A1 WO 2022007171A1 CN 2020114031 W CN2020114031 W CN 2020114031W WO 2022007171 A1 WO2022007171 A1 WO 2022007171A1
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WO
WIPO (PCT)
Prior art keywords
front cover
sound
basin frame
positioning
vibrating membrane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/114031
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English (en)
French (fr)
Inventor
曹成铭
王磊
张凡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Technologies Pte Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Technologies Pte Ltd
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Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Technologies Pte Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2022007171A1 publication Critical patent/WO2022007171A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to the field of sound and electricity, in particular to a sound producing device.
  • the related art sound-generating device includes a basin frame, a vibrating membrane supported and fixed on the basin frame, and a front cover covering the vibrating membrane and forming a sound-emitting front cavity together with the vibrating membrane.
  • the sound-out hole on the device connects the sound-emitting pre-cavity with the outside world.
  • the purpose of the utility model is to provide a sound device with better reliability.
  • the present invention provides a sound-generating device, which comprises a basin frame, a vibrating membrane supported and fixed on the basin frame, and a vibrating membrane covered on the vibrating membrane and forming a sounding front cavity together with the vibrating membrane.
  • a front cover the front cover is provided with a sound outlet hole passing through it, the sound outlet hole communicates the sound-emitting front cavity with the outside world, and the front cover is provided with a positioning foot extending in the direction of the basin frame, so The positioning feet are attached to the outer peripheral side of the basin frame and are fixedly connected with the basin frame.
  • the basin frame is made of a metal material
  • the positioning legs are made of a metal material
  • the positioning legs and the basin frame are fixed by laser spot welding.
  • the front cover includes a front cover plate spaced from the diaphragm and a surrounding wall bent and extended from the periphery of the front cover plate toward the basin frame, and the sound outlet penetrates through the front cover plate.
  • a cover plate is provided, and one end of the surrounding wall away from the front cover plate is press-fitted on the vibrating film; the positioning foot is formed by extending from an end of the surrounding wall away from the front cover plate.
  • the positioning foot includes a first part extending outward from the outer peripheral side of the surrounding wall and a second part extending from the first part along the outer peripheral side of the basin frame, the second part It is fixed with the basin frame by laser spot welding.
  • the first part is bent and extended along the vibration direction of the diaphragm
  • the second part is bent and extended along the vibration direction of the diaphragm
  • the positioning feet comprise a plurality of and are spaced apart from each other.
  • the front cover has a rectangular structure with rounded corners, and the positioning feet include four and are respectively disposed at the four rounded corners of the front cover.
  • the positioning feet have an arc-shaped structure matching the rounded corners.
  • the front cover is provided with positioning feet extending in the direction of the basin frame. Fixed connection; that is, through this structural arrangement, the front cover and the basin frame are positioned by the positioning feet, and then fixed, the process is simpler, the fixing effect is better, and the reliability of the sounding device is better.
  • Fig. 1 is the stereo structure schematic diagram of the sound-emitting device of the present invention
  • Fig. 2 is the three-dimensional structure exploded schematic diagram of the sound-emitting device of the present invention
  • FIG. 3 is a cross-sectional view of the sound-emitting device of the present invention.
  • the present invention provides a sound-generating device 100
  • the sound-generating device 100 includes a basin frame 1, a vibration system 2 respectively fixed on the basin frame 1, and a vibration system 2 that drives the vibration system 2 to vibrate and emit sound.
  • the magnetic circuit system 3 and the front cover 4, the magnetic circuit system 3 has a magnetic gap 30, and the basin frame 1 is a metal basin frame.
  • the vibration system 2 includes a diaphragm 21 supported and fixed on the basin frame 1 and used for vibrating and producing sound, a dome 22 , and a voice coil inserted in the magnetic gap 30 to drive the diaphragm 21 to vibrate 23.
  • the elastic conductive member 24 and the skeleton 25 are inserted in the magnetic gap 30 to drive the diaphragm 21 to vibrate 23.
  • the vibrating membrane 21 includes a vibrating portion 211 , a ring portion 212 extending from the periphery of the vibrating portion 211 and surrounding the vibrating portion 211 , and being bent by the side of the ring portion 212 away from the vibrating portion 211 . It is extended and fixed to the fixing part 213 of the basin frame 1 .
  • the dome 22 is attached to the side of the vibration part 211 close to the magnetic circuit system 3 .
  • the front cover 4 is covered on the diaphragm 21 and together with the diaphragm 21 to form a sounding front cavity 10 , the front cover 4 includes a front cover 42 spaced from the diaphragm 21 , and the front cover 42 is formed by the front cover 42 .
  • the sound-out hole 420 can also be set through the surrounding wall 43 according to actual needs, as long as the sound-out hole 420 connects the sounding front cavity 10 with the outside world, so that the diaphragm 21 vibrates and emits sound can be transmitted to the outside world.
  • the front cover 4 is provided with a positioning leg 41 extending toward the basin frame 1 .
  • the positioning leg 41 is attached to the outer peripheral side of the basin frame 1 and is fixedly connected with the basin frame 1 . That is, with this structure, the front cover 4 and the basin frame 1 are positioned by the positioning feet 41 and then fixed, the process flow is simpler, the fixing effect is better, and the reliability of the sounding device 100 is better.
  • the basin frame 1 is made of a metal material
  • the positioning legs 41 are made of a metal material
  • the positioning legs 41 and the basin frame 1 are fixed by laser spot welding.
  • the positioning foot 41 is formed by extending from one end of the surrounding wall 43 away from the front cover 42 , and includes a first portion 411 extending outward from the outer peripheral side of the surrounding wall 43 and a first portion 411 extending along the edge of the surrounding wall 411 .
  • the second portion 412 extending from the outer peripheral side of the basin frame 1 is fixed to the basin frame 1 by laser spot welding. That is to say, the first part 411 and the second part 412 together form a positioning step, which can make the basin frame 1 and the front cover 4 quickly position during the process, and improve the efficiency. At the same time, the second part 412 and the basin frame 1 are fixed by laser spot welding. The fixing effect is better, of course, the positioning pin 41 is not limited to this structure.
  • the first part 411 is bent and extended along the vibration direction perpendicular to the diaphragm 21
  • the second part 412 is bent and extended along the vibration direction of the diaphragm 21 , that is, the positioning pin 41 adopts this structure , the structure is simple, and the technological process is simple.
  • the positioning feet 41 include a plurality of and are spaced apart from each other.
  • the front cover 4 has a rectangular structure with rounded corners.
  • the positioning feet 41 include four and are respectively disposed at the four rounded corners of the front cover 4 .
  • the rounded corners match the arc structure.
  • the positioning feet 41 are evenly distributed around the junction of the front cover 4 and the basin frame 1, and are matched with the rounded corners, which is more firm, saves materials, and reduces costs; of course, the positioning feet are not limited to four, but also one, At this time, the positioning feet 41 are annular, and are arranged around the outside of the basin frame 1 .
  • the voice coil 23 is inserted in the magnetic gap 30 and has a racetrack shape.
  • elastic conductive members 24 which are respectively disposed on opposite sides of the voice coil 23 and are electrically connected to the voice coil 23 . It includes an elastic arm 241 , a first connecting arm 242 and a second connecting arm 243 extending from opposite sides of the elastic arm 241 . side.
  • the skeleton 25 is sandwiched between the dome 22 and the voice coil 23 , and the skeleton 25 includes a skeleton main body 251 attached to the dome 22 .
  • the first extension wall 252 is bent and extended in the direction of the coil 23 .
  • the end of the first extension wall 252 away from the main body portion 251 of the frame is abutted and fixed to the voice coil 23 , that is, the voice coil 23 is fixed to the voice coil 23 through the frame 25 .
  • the voice coil 23 is suspended in the magnetic gap 30 through the skeleton 25, and the reliability is better.
  • the main body portion 251 of the skeleton is in the shape of a racetrack
  • the first extension wall 252 is annular
  • the skeleton 25 further includes two extension walls formed by bending and extending from opposite sides of the first extension wall 252 respectively.
  • the second extension wall 253 , and the first connecting arm 242 is fixed to the second extension wall 253 .
  • the magnetic circuit system 3 includes a magnetic bowl 31 , and a magnetic steel assembly 32 fixedly disposed on the magnetic yoke 31 .
  • the magnetic steel assembly 32 and the magnetic bowl 31 are spaced apart to form a magnetic gap 30 .
  • the front cover is provided with positioning feet extending in the direction of the basin frame. Fixed connection; that is, through this structural arrangement, the front cover and the basin frame are positioned by the positioning feet, and then fixed, the process is simpler, the fixing effect is better, and the reliability of the sounding device is better.
  • the present utility model provides an embodiment of the present utility model as described above, which is not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and accompanying drawings of the present utility model, or Directly or indirectly used in other related technical fields, are all similarly included in the scope of patent protection of the present invention.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本实用新型提供了一种发声器件，其包括盆架、支撑固定于所述盆架的振膜以及盖设于所述振膜并与所述振膜共同围成发声前腔的前盖，所述前盖设有贯穿其上的出声孔，所述出声孔将所述发声前腔与外界连通，所述前盖设有向所述盆架方向延伸的定位脚，所述定位脚贴设于所述盆架的外周侧且与所述盆架固定连接。与相关技术相比，本实用新型的发声器件可靠性更好。

Description

发声器件 技术领域
本实用新型涉及声电领域，尤其涉及一种发声器件。
 背景技术
随着互联网时代的到来，移动终端设备的数量不断上升。而在移动设备中，手机无疑是最常见且最便携的移动终端设备，用于播放音乐等声音的发声器件被大量的运用到手机等移动终端设备中。
相关技术发声器件包括盆架、支撑固定于所述盆架的振膜以及盖设于所述振膜并与所述振膜共同围成发声前腔的前盖，所述前盖设有贯穿其上的出声孔，所述出声孔将所述发声前腔与外界连通。
 技术问题
然而，相关技术中，前盖与盆架的固定效果不好，可靠性较差。
因此，有必要提供一种新的发声器件解决上述问题。
 技术解决方案
本实用新型的目的在于提供一种可靠性更好的发声器件。
为达到上述目的，本实用新型提供一种发声器件，其包括盆架、支撑固定于所述盆架的振膜以及盖设于所述振膜并与所述振膜共同围成发声前腔的前盖，所述前盖设有贯穿其上的出声孔，所述出声孔将所述发声前腔与外界连通，所述前盖设有向所述盆架方向延伸的定位脚，所述定位脚贴设于所述盆架的外周侧且与所述盆架固定连接。
优选的，所述盆架为金属材料制成，所述定位脚为金属材料制成，所述定位脚与所述盆架通过激光点焊固定。
优选的，所述前盖包括与所述振膜间隔设置的前盖板以及由所述前盖板的周缘向所述盆架方向弯折延伸的围壁，所述出声孔贯穿所述前盖板设置，所述围壁远离所述前盖板的一端压设于所述振膜；所述定位脚由所述围壁远离所述前盖板的一端延伸形成。
优选的，所述定位脚包括由所述围壁的外周侧向外延伸的第一部分以及由所述第一部分沿贴合于所述盆架的外周侧延伸的第二部分，所述第二部分与所述盆架通过激光点焊固定。
优选的，所述第一部分沿垂直于所述振膜的振动方向弯折延伸，所述第二部分沿所述振膜的振动方向弯折延伸。
优选的，所述定位脚包括多个且相互间隔设置。
优选的，所述前盖呈带圆角的矩形结构，所述定位脚包括四个且分别设置于所述前盖的四个所述圆角处。
优选的，所述定位脚呈与所述圆角匹配的弧形结构。
 有益效果
与相关技术相比，本实用新型的发声器件，所述前盖设有向所述盆架方向延伸的定位脚，所述定位脚贴设于所述盆架的外周侧且与所述盆架固定连接；即通过此种结构设置，所述前盖和所述盆架通过定位脚进行定位，然后固定，工艺流程更加简单，固定效果更好，发声器件的可靠性更好。
 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为本实用新型发声器件的立体结构示意图
图2为本实用新型发声器件的立体结构分解示意图；
图3为本实用新型发声器件的剖视图。
 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。
请参考图1-3所示，本实用新型提供一种发声器件100，该发声器件100包括盆架1、分别固定于所述盆架1的振动系统2和驱动所述振动系统2振动发声的磁路系统3、前盖4，所述磁路系统3具有磁间隙30，盆架1为金属盆架。
具体的，所述振动系统2包括支撑固定于所述盆架1且用于振动发声的振膜21、球顶22、插设于所述磁间隙30以驱动所述振膜21振动的音圈23、弹性导电件24以及骨架25。
所述振膜21包括振动部211、由所述振动部211的周缘延伸并环绕所述振动部211的折环部212、由所述折环部212远离所述振动部211的一侧弯折延伸并固定于所述盆架1的固定部213。球顶22贴设于所述振动部211靠近磁路系统3的一侧。
前盖4盖设于所述振膜21并与所述振膜21共同围成发声前腔10，前盖4包括与所述振膜21间隔设置的前盖板42以及由所述前盖板42的周缘向所述盆架1方向弯折延伸的围壁43，所述围壁43远离所述前盖板42的一端压设于所述振膜21的固定部213，前盖板42设有贯穿其上的出声孔420，当然出声孔420也可以根据实际所需贯穿围壁43设置，只要满足出声孔420将所述发声前腔10与外界连通，使得振膜21振动发声能传递至外界即可。
所述前盖4设有向所述盆架1方向延伸的定位脚41，所述定位脚41贴设于所述盆架1的外周侧且与所述盆架1固定连接。即通过此种结构设置，所述前盖4和所述盆架1通过定位脚41进行定位，然后固定，工艺流程更加简单，固定效果更好，发声器件100的可靠性更好。
具体的，所述盆架1为金属材料制成，所述定位脚41为金属材料制成，所述定位脚41与所述盆架1通过激光点焊固定。
所述定位脚41由所述围壁43远离所述前盖板42的一端延伸形成，其包括由所述围壁43的外周侧向外延伸的第一部分411以及由所述第一部分411沿贴合于所述盆架1的外周侧延伸的第二部分412，所述第二部分412与所述盆架1通过激光点焊固定。即第一部分411和第二部分412共同形成一个定位台阶，在工艺流程中可使得盆架1与前盖4快速定位，提高效率，同时第二部分412与盆架1激光点焊形成固定，其固定效果更好，当然定位脚41也不限于此结构。
优选的，所述第一部分411沿垂直于所述振膜21的振动方向弯折延伸，所述第二部分412沿所述振膜21的振动方向弯折延伸，即定位脚41采用此种结构，结构简单，工艺流程简单。
本实施例中，所述定位脚41包括多个且相互间隔设置。具体的，所述前盖4呈带圆角的矩形结构，所述定位脚41包括四个且分别设置于所述前盖4的四个所述圆角处，所述定位脚41呈与所述圆角匹配的弧形结构。定位脚41均匀的分布在前盖4和盆架1结合处的四周，且与所述圆角匹配，更加牢固的同时节省材料，成本降低；当然定位脚不限于四个，也可以是一个，此时定位脚41呈环状，环设于盆架1的外侧。
所述音圈23插设于所述磁间隙30内且呈跑道形。
弹性导电件24包括两个，且分别设置于所述音圈23的相对两侧且与所述音圈23电连接。其包括弹臂241、由所述弹臂241的相对两侧延伸形成的第一连接臂242和第二连接臂243，所述第二连接臂243固定于所述盆架1远离振膜21的一侧。
骨架25夹设于所述球顶22和所述音圈23之间，所述骨架25包括贴设于所述球顶22的骨架主体部251、由所述骨架主体部251向靠近所述音圈23方向弯折延伸的第一延伸壁252，所述第一延伸壁252远离所述骨架主体部251的一端抵接固定于所述音圈23，即所述音圈23通过骨架25固定至球顶22，通过骨架25将音圈23悬置在磁间隙30内，可靠性更好。
具体的，所述骨架主体部251呈跑道形，所述第一延伸壁252呈环状，所述骨架25还包括由所述第一延伸壁252的相对两侧分别弯折延伸形成的两个第二延伸壁253，第一连接臂242固定于所述第二延伸壁253。
所述磁路系统3包括磁碗31、固定设置于所述磁轭31上的磁钢组件32，磁钢组件32与磁碗31间隔形成磁间隙30。
与相关技术相比，本实用新型的发声器件，所述前盖设有向所述盆架方向延伸的定位脚，所述定位脚贴设于所述盆架的外周侧且与所述盆架固定连接；即通过此种结构设置，所述前盖和所述盆架通过定位脚进行定位，然后固定，工艺流程更加简单，固定效果更好，发声器件的可靠性更好。
本实用新型提供一种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 (8)

  1. 一种发声器件，其包括盆架、支撑固定于所述盆架的振膜以及盖设于所述振膜并与所述振膜共同围成发声前腔的前盖，所述前盖设有贯穿其上的出声孔，所述出声孔将所述发声前腔与外界连通，其特征在于，所述前盖设有向所述盆架方向延伸的定位脚，所述定位脚贴设于所述盆架的外周侧且与所述盆架固定连接。
  2. 根据权利要求1中所述的发声器件，其特征在于，所述盆架为金属材料制成，所述定位脚为金属材料制成，所述定位脚与所述盆架通过激光点焊固定。
  3. 根据权利要求2中所述的发声器件，其特征在于，所述前盖包括与所述振膜间隔设置的前盖板以及由所述前盖板的周缘向所述盆架方向弯折延伸的围壁，所述出声孔贯穿所述前盖板设置，所述围壁远离所述前盖板的一端压设于所述振膜；所述定位脚由所述围壁远离所述前盖板的一端延伸形成。
  4. 根据权利要求3中所述的发声器件，其特征在于，所述定位脚包括由所述围壁的外周侧向外延伸的第一部分以及由所述第一部分沿贴合于所述盆架的外周侧延伸的第二部分，所述第二部分与所述盆架通过激光点焊固定。
  5. 根据权利要求4中所述的发声器件，其特征在于，所述第一部分沿垂直于所述振膜的振动方向弯折延伸，所述第二部分沿所述振膜的振动方向弯折延伸。
  6. 根据权利要求1中所述的发声器件，其特征在于，所述定位脚包括多个且相互间隔设置。
  7. 根据权利要求6中所述的发声器件，其特征在于，所述前盖呈带圆角的矩形结构，所述定位脚包括四个且分别设置于所述前盖的四个所述圆角处。
  8. 根据权利要求7中所述的发声器件，其特征在于，所述定位脚呈与所述圆角匹配的弧形结构。
PCT/CN2020/114031 2020-07-06 2020-09-08 发声器件 Ceased WO2022007171A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6505705B1 (en) * 1999-07-27 2003-01-14 Harman International Industries, Incorporated Compact vehicular loudspeaker with dual-standard mounting system
CN201995110U (zh) * 2011-01-12 2011-09-28 瑞声光电科技(常州)有限公司 集成扬声器箱
CN108235194A (zh) * 2018-01-04 2018-06-29 瑞声科技(新加坡)有限公司 发声器件及其安装方法
CN108366325A (zh) * 2018-01-27 2018-08-03 瑞声科技(新加坡)有限公司 发声器件
CN209201334U (zh) * 2018-12-12 2019-08-02 瑞声科技(新加坡)有限公司 扬声器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6505705B1 (en) * 1999-07-27 2003-01-14 Harman International Industries, Incorporated Compact vehicular loudspeaker with dual-standard mounting system
CN201995110U (zh) * 2011-01-12 2011-09-28 瑞声光电科技(常州)有限公司 集成扬声器箱
CN108235194A (zh) * 2018-01-04 2018-06-29 瑞声科技(新加坡)有限公司 发声器件及其安装方法
CN108366325A (zh) * 2018-01-27 2018-08-03 瑞声科技(新加坡)有限公司 发声器件
CN209201334U (zh) * 2018-12-12 2019-08-02 瑞声科技(新加坡)有限公司 扬声器

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