WO2021093696A1 - 逆向微型喇叭 - Google Patents

逆向微型喇叭 Download PDF

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Publication number
WO2021093696A1
WO2021093696A1 PCT/CN2020/127406 CN2020127406W WO2021093696A1 WO 2021093696 A1 WO2021093696 A1 WO 2021093696A1 CN 2020127406 W CN2020127406 W CN 2020127406W WO 2021093696 A1 WO2021093696 A1 WO 2021093696A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
eardrum
user
housing
coil
Prior art date
Application number
PCT/CN2020/127406
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English (en)
French (fr)
Inventor
金兴培
Original Assignee
希联电子香港有限公司
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Filing date
Publication date
Application filed by 希联电子香港有限公司 filed Critical 希联电子香港有限公司
Publication of WO2021093696A1 publication Critical patent/WO2021093696A1/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
    • H04R9/02—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
    • H04R9/06—Loudspeakers

Definitions

  • This application relates to an electro-acoustic conversion device, and in particular to a reversed miniature horn.
  • the traditional miniature speaker In the traditional miniature speaker, a coil with a voice signal vibrates the diaphragm during the current conversion process to produce sound. In the process of current conversion, the coil itself will also produce high-range sound. Because the traditional miniature horn coil is arranged behind the diaphragm, and the high-frequency range generated by the coil is blocked by the diaphragm, this part of the high-pitched sound cannot be transmitted to the eardrum. Therefore, the traditional miniature speaker is a high-sound range generated by a non-reproducible coil, and the sound reproduction efficiency is low.
  • the technical problem to be solved by this application is to provide a reverse miniature speaker that can improve the sound reproduction performance, protect the eardrum used for a long time, and reduce the fatigue of the eardrum.
  • a reverse miniature horn which includes a housing, a bracket, a ring magnet, a coil, a diaphragm, and a PCB.
  • the ring magnet, coil, and diaphragm are all arranged in the housing; the bracket is arranged on the user's ear
  • the lower surface of the stent faces the eardrum of the user
  • the upper surface of the stent is provided with a central guide post in the center
  • the central guide post is provided with a first through hole
  • the ring magnet surrounds the central guide post and is arranged on the stent
  • the upper surface of the ring magnet is covered with a metal plate
  • the diaphragm is bonded to the upper surface of the metal plate
  • a gap is formed between the central guide post and the ring magnet
  • the coil is arranged in the gap
  • the bracket is provided with a plurality of second through holes centered on the first through hole and uniformly distributed on the circumference, and the pluralit
  • the beneficial technical effect of the present application is that the coil is located on the side of the diaphragm close to the eardrum of the user, and the high-range sound generated by the coil reaches the eardrum of the user through the second through hole, and is regenerated intact. Improved sound reproduction efficiency; and compared to traditional micro speakers, the diaphragm of the reverse micro speaker is farther away from the user's eardrum, which can reduce the vibration pressure on the eardrum, protect the eardrum used for a long time, and reduce eardrum fatigue.
  • Figure 1 is a cross-sectional view of the reverse micro horn of the application
  • FIG. 2 is a schematic diagram 1 of the three-dimensional structure of the reverse micro horn of the application.
  • FIG. 3 is a second schematic diagram of the three-dimensional structure of the reverse micro horn of this application.
  • the reverse micro horn includes a housing 1, a bracket 2, a ring magnet 3, a coil 4, a diaphragm 5 and a PCB 9.
  • the ring magnet 3, the coil 4 , The diaphragm 5 is all arranged in the housing 1.
  • the bracket 2 is arranged on the ear of the user, and the lower surface of the bracket faces the eardrum of the user.
  • the upper surface and the outer side referred to in this embodiment are the side away from the eardrum of the user.
  • a central guide post 21 is provided in the center of the upper surface of the bracket 2, and the central guide post 21 is provided with a first through hole 22.
  • the high-range sound and mid-range sound generated by the central part of the diaphragm 5 can reach through the first through hole 22.
  • the ring magnet 3 is arranged on the upper surface of the bracket 2 around the central guide post 21, the upper surface of the ring magnet 3 is covered with a metal plate 6, and the diaphragm 5 is adhered to the upper surface of the metal plate 6.
  • a gap 23 is formed between the central guide post 21 and the ring magnet 3, the coil 4 is arranged in the gap 23, and the upper end of the coil 4 is fixedly connected to the diaphragm 5.
  • the bracket 2 is provided with a plurality of second through holes 24 uniformly distributed on a circumference centered on the first through hole 22, the plurality of second through holes 24 are connected to the gap 23, the high-range sound generated by the coil 4 and The low-range sound generated by the diaphragm 5 can reach the eardrum of the user through the second through hole 24.
  • the housing 1 is provided with an opening at one end facing the eardrum of the user, the outer circumference of the bracket 2 is fixedly connected to the open end of the housing 1, and the PCB 9 is arranged on the outer surface of the end of the housing 1 away from the eardrum of the user, In addition, a tuning hole 91 is provided at one end of the housing 1 away from the eardrum of the user, so as to adjust the sound quality and volume of the reverse micro-speaker.
  • the coil 4 is located on the side of the diaphragm 5 close to the eardrum of the user.
  • the high-range sound generated by the coil 4 reaches the eardrum of the user through the second through hole 24 of the bracket 2, and is regenerated intact.
  • the diaphragm 5 of the reverse micro-speaker is farther away from the user's eardrum, which can reduce the vibration pressure on the eardrum, protect the eardrum used for a long time, and reduce eardrum fatigue degree.
  • a diaphragm fixing ring 7 is provided on the upper surface of the metal plate 6, and the diaphragm 5 is located between the diaphragm fixing ring 7 and the metal plate 6.
  • a space protection ring 8 is provided between the inner side of the housing 1 at one end away from the eardrum of the user and the diaphragm fixing ring 7.
  • the inner side referred to in this embodiment is the side close to the eardrum of the user.
  • the area between the diaphragm 5 and the inner side of the end of the housing 1 away from the eardrum of the user is a sound amplifying area 51, and the sound amplifying area 51 can amplify the sound generated by the vibration of the diaphragm 5.
  • the setting of the space protection ring 8 can change the internal space area of the sound amplifying area 51, and at the same time adjust with the tuning hole 91 to obtain better sound quality and volume.
  • the space protection ring 8 is made of plastic material (such as PBT, PC, etc.), which can block the high-temperature heat conduction generated during the soldering of the PCB 9 from being conducted to the diaphragm 5 through the diaphragm fixing ring 7, thereby avoiding the deformation of the diaphragm 5 due to high temperature. Therefore, the sound quality deformation caused by the failure of the diaphragm 5 is avoided.
  • plastic material such as PBT, PC, etc.

Landscapes

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

Abstract

本申请公开了一种逆向微型喇叭，包括外壳、支架、环形磁铁、线圈、膜片和PCB，支架被配置于使用者的耳朵上且支架的下表面朝向使用者的耳膜，支架的上表面中央设置有中心导柱，中心导柱开设有第一通孔，环形磁铁环绕中心导柱设置于支架的上表面，环形磁铁上表面覆盖有金属板，膜片粘接于金属板的上表面，中心导柱与环形磁铁之间形成有间隙，线圈设置于该间隙中，且线圈上端与膜片固定连接，支架上设置有多个以第一通孔为中心呈圆周均匀分布的第二通孔，多个第二通孔与间隙连通；外壳朝向使用者耳膜的一端设有开口，支架的外圆周与外壳的开口端连接，PCB设置于外壳远离使用者耳膜一端的外侧面上，且外壳远离使用者耳膜一端设置有调音孔。

Description

逆向微型喇叭
本申请是以申请号为201921931441.8、申请日为2019年11月11日的中国专利申请为基础，并主张其优先权，该申请的全部内容在此作为整体引入本申请中。
技术领域
本申请涉及电声转换装置，尤其涉及一种逆向微型喇叭。
背景技术
传统微型喇叭是由有语音信号的线圈在电流转换过程中使膜片震动而产生声音。而线圈在电流转换的过程中，自身也会产生高音域的声音，由于传统微型喇叭线圈设置在膜片之后，而线圈产生的高音域由于膜片的阻挡作用，这部分高音无法传递到耳膜，因此，传统微型喇叭是不可再生线圈产生的高音域，声音再生效能低。
此外，长时间使用传统微型喇叭，由于膜片长时间对耳膜施加的振动压力，容易引起耳膜疲劳。
申请内容
本申请所要解决的技术问题在于提供一种能够提高声音再生效能，并能保护长时间使用的耳膜、减少耳膜疲劳度的逆向微型喇叭。
为解决上述技术问题，本申请采用如下所述的技术方案：
一种逆向微型喇叭，其包括有外壳、支架、环形磁铁、线圈、膜片和PCB，所述环形磁铁、线圈、膜片均设置于所述外壳内；所述支架被配置于使用者的耳朵上且支架的下表面朝向使用者的耳膜，该支架的上表面中央设置有中心导柱，该中心导柱开设有第一通孔，所述环形磁铁环绕所述中心导柱设置于所述支架的上表面，所述环形磁铁上表面覆盖有金属板，所述膜片粘接于金属板的上表面，所述中心导柱与环形磁铁之间形成有间隙，所述线圈设置于该间隙中，且线圈上端与膜片固定连接，所述支架上设置有多个以第一通孔为中心呈圆周均匀分布的第二通孔，多个第二通孔与所述间隙连通；所述外壳朝向使用者耳膜的一端设有开口，所述支架的外圆周与所述外壳的开口端固定连接，所述PCB设置于外壳远离使用者耳膜一端的外侧面上，且所述外壳远离使用者耳膜一端设置有调音孔。
本申请的有益技术效果在于：上述逆向微型喇叭，线圈位于膜片靠近使用者耳膜的一侧，线圈产生的高音域声音通过第二通孔到达使用者的耳膜，原封不动地被再生，大大提高了声音再生的效能；而且，相比传统的微型喇叭，逆向微型喇叭的膜片更加远离使用者的耳膜，能减少对耳膜的振动压力，可以保护长时间使用的耳膜、减少耳膜疲劳度。
附图说明
图1为本申请的逆向微型喇叭的剖视图；
图2为本申请的逆向微型喇叭的立体结构示意图一；
图3为本申请的逆向微型喇叭的立体结构示意图二。
具体实施方式
为使本领域的普通技术人员更加清楚地理解本申请的目的、技术方案和优点，以下结合附图和实施例对本申请做进一步的阐述。
如图1至图3所示，在本申请一个实施例中，逆向微型喇叭包括有外壳1、支架2、环形磁铁3、线圈4、膜片5和PCB 9，所述环形磁铁3、线圈4、膜片5均设置于所述外壳1内。
所述支架2被配置于使用者的耳朵上，且支架的下表面朝向使用者的耳膜，本实施例所指的上表面、外侧面为远离使用者耳膜的一面。所述支架2的上表面中央设置有中心导柱21，该中心导柱21开设有第一通孔22，膜片5中央部分产生的高音域声音和中音域声音可通过第一通孔22到达使用者的耳膜。所述环形磁铁3环绕所述中心导柱21设置于所述支架2的上表面，所述环形磁铁3上表面覆盖有金属板6，所述膜片5粘接于金属板6的上表面。所述中心导柱21与环形磁铁3之间形成有间隙23，所述线圈4设置于该间隙23中，且线圈4上端与膜片5固定连接。所述支架2上设置有多个以第一通孔22为中心呈圆周均匀分布的第二通孔24，多个第二通孔24与所述间隙23连通，线圈4产生的高音域声音以及膜片5产生的低音域声音可通过第二通孔24到达使用者的耳膜。
所述外壳1朝向使用者耳膜的一端设有开口，所述支架2的外圆周与所述外壳1的开口端固定连接，所述PCB 9设置于外壳1远离使用者耳膜一端的外侧面上，且所述外壳1远离使用者耳膜一端设置有调音孔91，以便调节逆向微型喇叭的音质和音量。
本申请的逆向微型喇叭，线圈4位于膜片5靠近使用者耳膜的一侧，线圈4产生的高音域声音通过支架2的第二通孔24到达使用者的耳膜，原封不动地被再生，大大提高了声音再生的效能；而且，相比传统的微型喇叭，逆向微型喇叭的膜片5更远离使用者的耳膜，能减少对耳膜的振动压力， 可以保护长时间使用的耳膜、减少耳膜疲劳度。
在本申请的一个优选实施例中，所述金属板6的上表面设置有膜片固定环7，所述膜片5位于该膜片固定环7与金属板6之间。所述外壳1远离使用者耳膜一端的内侧面与膜片固定环7之间设置有空间保护环8，本实施例所指的内侧面为靠近使用者耳膜的一面。
所述膜片5至外壳1远离使用者耳膜一端的内侧面之间的区域为声音放大区51，该声音放大区51可放大膜片5振动产生的声音。空间保护环8的设置，可以改变声音放大区51的内部空间面积，同时与调音孔91配合调节，可以获得更好的音质和音量。所述空间保护环8采用塑料材质（如PBT、PC等）制备，可以阻断PCB 9焊接时产生的高温热传导通过膜片固定环7传导至膜片5，避免了高温导致膜片5变形，从而避免了膜片5发生不良而导致的音质变形。
以上所述仅为本申请的优选实施例，而非对本申请做任何形式上的限制。本领域的技术人员可在上述实施例的基础上施以各种等同的更改和改进，凡在权利要求范围内所做的等同变化或修饰，均应落入本申请的保护范围之内。

Claims (3)

  1. 一种逆向微型喇叭，其特征在于：所述逆向微型喇叭包括有外壳、支架、环形磁铁、线圈、膜片和PCB，所述环形磁铁、线圈、膜片均设置于所述外壳内；所述支架被配置于使用者的耳朵上且支架的下表面朝向使用者的耳膜，该支架的上表面中央设置有中心导柱，该中心导柱开设有第一通孔，所述环形磁铁环绕所述中心导柱设置于所述支架的上表面，所述环形磁铁上表面覆盖有金属板，所述膜片粘接于金属板的上表面，所述中心导柱与环形磁铁之间形成有间隙，所述线圈设置于该间隙中，且线圈上端与膜片固定连接，所述支架上设置有多个以第一通孔为中心呈圆周均匀分布的第二通孔，多个第二通孔与所述间隙连通；所述外壳朝向使用者耳膜的一端设有开口，所述支架的外圆周与所述外壳的开口端固定连接，所述PCB设置于外壳远离使用者耳膜一端的外侧面上，且所述外壳远离使用者耳膜一端设置有调音孔。
  2. 如权利要求1所述的逆向微型喇叭，其特征在于：所述金属板的上表面设置膜片固定环，所述膜片位于该膜片固定环与金属板之间。
  3. 如权利要求2所述的逆向微型喇叭，其特征在于：所述外壳远离使用者耳膜一端的内侧面与膜片固定环之间设置有空间保护环。
PCT/CN2020/127406 2019-11-11 2020-11-09 逆向微型喇叭 WO2021093696A1 (zh)

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CN201921931441.8U CN210431856U (zh) 2019-11-11 2019-11-11 逆向微型喇叭
CN201921931441.8 2019-11-11

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210431856U (zh) * 2019-11-11 2020-04-28 希联电子香港有限公司 逆向微型喇叭

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KR20040078626A (ko) * 2004-08-23 2004-09-10 주식회사 이엠텍 양방향 마이크로 스피커의 통풍홀 성형구조
CN203872349U (zh) * 2014-03-12 2014-10-08 富祐鸿科技股份有限公司 具有多音域排气孔的喇叭单体及使用喇叭单体的电声产品
CN206620291U (zh) * 2017-03-07 2017-11-07 歌尔科技有限公司 一种发声装置及电子设备
CN209105438U (zh) * 2018-12-24 2019-07-12 广州市立伟电子有限公司 低频微型动圈式扬声器
CN210431856U (zh) * 2019-11-11 2020-04-28 希联电子香港有限公司 逆向微型喇叭

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040078626A (ko) * 2004-08-23 2004-09-10 주식회사 이엠텍 양방향 마이크로 스피커의 통풍홀 성형구조
CN203872349U (zh) * 2014-03-12 2014-10-08 富祐鸿科技股份有限公司 具有多音域排气孔的喇叭单体及使用喇叭单体的电声产品
CN206620291U (zh) * 2017-03-07 2017-11-07 歌尔科技有限公司 一种发声装置及电子设备
CN209105438U (zh) * 2018-12-24 2019-07-12 广州市立伟电子有限公司 低频微型动圈式扬声器
CN210431856U (zh) * 2019-11-11 2020-04-28 希联电子香港有限公司 逆向微型喇叭

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