WO2024000707A1 - 耳机芯 - Google Patents

耳机芯 Download PDF

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Publication number
WO2024000707A1
WO2024000707A1 PCT/CN2022/107736 CN2022107736W WO2024000707A1 WO 2024000707 A1 WO2024000707 A1 WO 2024000707A1 CN 2022107736 W CN2022107736 W CN 2022107736W WO 2024000707 A1 WO2024000707 A1 WO 2024000707A1
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WO
WIPO (PCT)
Prior art keywords
fixed
diaphragm
voice coil
magnetic
hole
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Application number
PCT/CN2022/107736
Other languages
English (en)
French (fr)
Inventor
令狐荣林
张龙
董献杰
Original Assignee
瑞声光电科技(常州)有限公司
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Publication of WO2024000707A1 publication Critical patent/WO2024000707A1/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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/02—Loudspeakers
    • 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

  • the utility model relates to a sound-generating device, in particular to an earphone core used in TWS earphones.
  • the earphone core in the related art is generally equipped with a magnetic circuit system, which is used to provide mid-bass sound effects. If it is necessary to provide high-pitched sound effects at the same time, two coaxial magnetic circuit systems need to be set up, which increases the need for the earphone core.
  • the axial thickness is not conducive to the development trend of existing earphones becoming lighter and thinner.
  • the present invention proposes an earphone core that is thinner and achieves low, mid and high sound effects at the same time.
  • an earphone core which includes a basin frame with a receiving space, a vibration system fixed on the basin frame, and a magnetic circuit system with a magnetic gap.
  • the vibration system includes a base frame fixed on the basin frame and a magnetic circuit system with a magnetic gap.
  • the diaphragm of the basin frame and the voice coil fixed on the side of the diaphragm facing the magnetic circuit system.
  • the voice coil is inserted in the magnetic gap.
  • the magnetic circuit system includes a magnetic circuit fixed on the basin frame.
  • the yoke and the first magnet fixed to the yoke, the earphone core also includes a tweeter MEMS speaker fixed to the first magnet along the vibration direction, the MEMS speaker, the voice coil and the diaphragm Set coaxially along the vibration direction.
  • the diaphragm is provided with a first through hole passing through it along the vibration direction, and the diaphragm includes an inner edge surrounding the first through hole and an outer edge fixed to the basin frame, The inner edge is fixed to the first magnetic steel, and the MEMS speaker is fixed to the first magnetic steel through the first through hole.
  • the magnetic circuit system further includes a pole core fixed on the side of the first magnet facing the diaphragm and a second magnet fixed on the side of the pole core away from the first magnet.
  • the inner edge is fixed to the second magnetic steel, and the MEMS speaker is fixed to the second magnetic steel through the through hole.
  • the magnetic yoke is provided with a second through hole passing through it in the vibration direction, the first magnetic steel is fixed to the magnetic yoke and covers the second through hole, and the MEMS speaker passes through the second through hole.
  • the second through hole is fixed to the first magnetic steel.
  • the yoke includes a bottom wall fixed to the first magnet and a side wall bent and extended from an edge of the bottom wall toward the diaphragm, and the side wall is connected to the first magnet surrounding If the magnetic gap is formed, the second through hole is provided on the bottom wall.
  • the basket includes a first fixing part that is fixed around the side wall, a second fixing part that bends and extends from an edge of the first fixing part in a direction away from the voice coil, and a second fixing part that extends from the edge of the first fixing part in a direction away from the voice coil.
  • the edges of the two fixing parts away from the first fixing part are bent and extended toward the third fixing part of the diaphragm, and the diaphragm is fixed to the third fixing part.
  • the side wall is provided with a third through hole passing through it in the vertical vibration direction
  • the first fixing part is provided with a third through hole inserted into the third through hole and fixed to the side wall. Bulge.
  • the vibration system includes a voice coil skeleton fixed to the diaphragm and supporting the voice coil in the magnetic gap.
  • the voice coil skeleton includes a voice coil fixed to the diaphragm and facing the voice coil.
  • the voice coil is supported on the surface of the third support part facing the diaphragm and attached to the surface of the second support part facing the first magnet.
  • the vibration system further includes an FPC fixed to the diaphragm.
  • the FPC includes a first connection part fixed to the diaphragm, a second connection part fixed to the third fixed part, and a connection part.
  • the first connecting part and the second connecting part have a plurality of elastic parts arranged at intervals, and the first connecting part is fixed to the surface of the first supporting part away from the diaphragm.
  • the second support part is provided with a fourth through hole passing through it in the vertical vibration direction, and the voice coil includes a voice coil lead electrically connected to the FPC, and the voice coil lead passes through the The fourth through hole is electrically connected to the first connection part.
  • the earphone core provided by the present utility model includes a basin frame and a vibration system and a magnetic circuit system fixed to the basin frame.
  • the vibration system includes a diaphragm fixed to the basin frame and a diaphragm fixed to the basin frame.
  • the diaphragm faces the voice coil on one side of the magnetic circuit system.
  • the magnetic circuit system includes a magnetic yoke fixed to the basin frame and a first magnet fixed to the magnetic yoke.
  • the earphone core also includes a vibration along the The direction of the tweeter MEMS speaker is fixed to the first magnet, and the MEMS speaker, the voice coil and the diaphragm are coaxially arranged along the vibration direction.
  • the vibration system and the magnetic circuit system are used to provide bass and mid-range sound effects, and the MEMS speaker provides high-pitched sound effects, effectively reducing the axial height of the coaxial mid-range and bass combination.
  • Figure 1 is a perspective view of the earphone core of the utility model
  • Figure 2 is an exploded view of the earphone core of the present utility model
  • Figure 3 is a cross-sectional view along line A-A in Figure 1;
  • Figure 4 is an enlarged view of part B in Figure 3;
  • Figure 5 is a perspective view of the diaphragm of the earphone core of the present utility model
  • Figure 6 is a perspective view of the FPC of the earphone core of the present invention.
  • Figure 7 is a perspective view of an earphone core in another embodiment of the present invention.
  • Figure 8 is a cross-sectional view along line C-C in Figure 7;
  • Figure 9 is a bottom view of the earphone core in Figure 7 .
  • the present invention provides an earphone core 100.
  • the earphone core 100 includes a basin frame 1 with a receiving space 10, a vibration system 2 fixed to the basin frame 1 and a magnetic gap 30.
  • the magnetic circuit system 3 and the tweeter MEMS speaker 4 used to provide high-pitched sound effects.
  • the vibration system 2 includes a diaphragm 21 fixed on the basin frame 1 , a voice coil 22 fixed on the side of the diaphragm 21 facing the magnetic circuit system 3 , and a voice coil 22 fixed on the diaphragm 21 and facing the magnetic circuit system 3 .
  • the voice coil 22 is supported by the voice coil frame 23 in the magnetic gap 30 and the FPC 24 fixed to the diaphragm 21; the FPC 24 electrically connects the voice coil 22 with an external circuit, and the voice coil 22 drives the voice coil 22 when energized.
  • the diaphragm 21 vibrates along the vibration direction to produce sound.
  • the magnetic circuit system 3 includes a magnetic yoke 31 fixed on the basin frame 1 , a first magnet 32 fixed on the magnetic yoke 31 , and a side of the first magnet 32 facing the diaphragm 21 .
  • the pole core 33 and the second magnet steel 34 fixed on the side of the pole core 33 away from the first magnet steel 32.
  • the yoke 31 includes a bottom wall 311 fixed to the first magnet 32 and a side wall 312 extending from the edge of the bottom wall 311 toward the diaphragm 21 .
  • the side wall 312 is connected to the diaphragm 21 .
  • the first magnetic steel 32 surrounds the magnetic gap 30 .
  • the basin frame 1 includes a first fixing part 11 fixed around the side wall 312 and a second fixing part 12 extending from the edge of the first fixing part 11 in a direction away from the voice coil 22 and extending from the edge of the first fixing part 11 .
  • the edge of the second fixing part 12 away from the first fixing part 11 is bent toward the third fixing part 13 extending toward the diaphragm 21 .
  • the diaphragm 21 is fixed to the third fixing part 13 .
  • the voice coil bobbin 23 includes a first support part 231 fixed on the side of the diaphragm 21 facing the voice coil 22 , and from the first support part 231 towards the side of the voice coil 22 .
  • the second supporting part 232 is bent and extended in the magnetic gap 30 and the third supporting part 233 is bent and extended from an end of the second supporting part 232 away from the diaphragm 21 toward the first magnet 32, so
  • the voice coil 22 is carried on the surface of the third supporting part 233 facing the diaphragm 21 and is attached to the surface of the second supporting part 232 facing the first magnet 32 .
  • the FPC 24 includes a first connection part 241 fixed on the diaphragm 21 , a second connection part 242 fixed on the third fixing part 13 and connected to the first connection part. 241 and a plurality of elastic portions 243 arranged at intervals between the second connecting portion 242 .
  • the first connecting portion 241 is fixed to the surface of the first supporting portion 231 of the voice coil bobbin 23 away from the diaphragm 21 .
  • the second support part 232 is provided with a fourth through hole 2321 extending through it in the vertical vibration direction.
  • the voice coil 22 includes a voice coil lead 221 electrically connected to the FPC 24 .
  • the voice coil 221 The lead wire passes through the fourth through hole 2321 and is electrically connected to the first connection part 241 .
  • the MEMS speaker 4 for providing high-pitched sound effects is fixed to the first magnet 32 along the vibration direction, and the MEMS speaker 4, the voice coil 22 and the diaphragm 21 are coaxially arranged along the vibration direction.
  • the sound-generating unit formed by the vibration system 2 and the magnetic circuit system 3 is mainly used to provide low-frequency and medium-frequency sounds
  • the MEMS speaker 4 is used to Provide high-frequency sound. Therefore, in the earphone core 100, the sound-emitting unit used to provide bass and midrange and the MEMS speaker 4 used to provide treble are coaxially arranged, effectively reducing the axial direction of the coaxial high-mid-bass combination.
  • the height saves product design space in micro TWS earphones and wearable consumer electronics products, allowing the earphone core 100 provided by the present invention to have a larger application space.
  • the diaphragm 21 is provided with a first through hole 211 passing through it in the vibration direction.
  • the diaphragm 21 includes a ring surrounding the first through hole 211 .
  • the inner edge 212 is fixed to the first magnet 32, and the MEMS speaker 4 is fixed to the second magnet 34 through the first through hole 211; specifically, the MEMS speaker 4 is fixed to On the surface of the second magnet 34 away from the yoke 31 .
  • the side wall 312 of the yoke 31 is provided with a third through hole 314 penetrating through it in the vertical vibration direction.
  • the first fixing part 11 is provided with a protruding part 111 inserted into the third through hole 314 and fixed on the side wall 312; by providing the protruding part 111, the third The fixed area between a fixed portion 11 and the side wall 312 effectively improves the bonding strength.
  • the bottom wall 311 ′ of the yoke 31 ′ is provided with a second passage passing through it in the vibration direction.
  • the first magnet 32' is fixed on the bottom wall 311' and covers the second through hole 313'
  • the MEMS speaker 4' passes through the second through hole 313' and is fixed on the The first magnet 32'; specifically, in this embodiment, the MEMS speaker 4' is fixed on the surface of the first magnet 32' away from the diaphragm 21'.
  • the specific structure of the MEMS speaker 4 is not specifically limited in the present invention, as long as it can be used as a MEMS speaker that can emit high-frequency sound effects.
  • the earphone core provided by the present utility model includes a basin frame and a vibration system and a magnetic circuit system fixed to the basin frame.
  • the vibration system includes a diaphragm fixed to the basin frame and a diaphragm fixed to the basin frame.
  • the diaphragm faces the voice coil on one side of the magnetic circuit system.
  • the magnetic circuit system includes a magnetic yoke fixed to the basin frame and a first magnet fixed to the magnetic yoke.
  • the earphone core also includes a vibration along the The direction of the tweeter MEMS speaker is fixed to the first magnet, and the MEMS speaker, the voice coil and the diaphragm are coaxially arranged along the vibration direction.
  • the vibration system and the magnetic circuit system are used to provide bass and mid-range sound effects, and the MEMS speaker provides high-pitched sound effects, effectively reducing the axial height of the coaxial mid-range and bass combination.

Abstract

本实用新型提供的耳机芯本实用新型提供的耳机芯包括盆架以及固定于所述盆架的振动系统和磁路系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜朝向所述磁路系统一侧的音圈，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的第一磁钢，所述耳机芯还包括沿振动方向固定于所述第一磁钢的MEMS扬声器，所述MEMS扬声器、所述音圈以及所述振膜沿振动方向同轴设置。所述振动系统和所述磁路系统用于提供低音和中音音效，所述MEMS扬声器提供高音音效，有效降低了同轴高中低音组合的轴向高度。

Description

耳机芯 技术领域
本实用新型涉及一种发声器件，尤其涉及一种运用在TWS耳机上的耳机芯。
 背景技术
随着高品质智能手机、Pad等便携式电子产品无损音乐的广泛应用，人们对可与其配合应用的耳机的要求也越来越高，在要求其体形小巧的同时，还要求其具备能够逼真再现各种音效的高保真音质性能。
 技术问题
相关技术中的耳机芯中一般设有一个磁路系统，其用于提供中低音的音效，如需同时提供高音音效，则需设置两个同轴的磁路系统，这就增加了耳机芯在轴向的厚度，不利于现有耳机轻薄化的发展趋势。
因此，有必要提供一种新的耳机芯以解决上述问题。
 技术解决方案
基于上述问题，本实用新型提出一种厚度较小且同时实现低中高音音效的耳机芯。
为达到上述目的，本实用新型提出一种耳机芯，其包括具有收容空间的盆架以及固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜朝向所述磁路系统一侧的音圈，所述音圈插设于所述磁间隙，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的第一磁钢，所述耳机芯还包括沿振动方向固定于所述第一磁钢的高音MEMS扬声器，所述MEMS扬声器、所述音圈以及所述振膜沿振动方向同轴设置。
优选的，所述振膜上设有沿振动方向贯穿其上的第一通孔，所述振膜包括围设形成所述第一通孔的内边缘以及固定于所述盆架的外边缘，所述内边缘固定于所述第一磁钢，所述MEMS扬声器穿过所述第一通孔固定于所述第一磁钢。
优选的，所述磁路系统还包括固定于所述第一磁钢朝向所述振膜一侧的极芯以及固定于所述极芯远离所述第一磁钢一侧的第二磁钢，所述内边缘固定于所述第二磁钢，所述MEMS扬声器穿过所述通孔固定于所述第二磁钢。
优选的，所述磁轭上设有沿振动方向贯穿其上的第二通孔，所述第一磁钢固定于所述磁轭并覆盖所述第二通孔，所述MEMS扬声器穿过所述第二通孔固定于所述第一磁钢。
优选的，所述磁轭包括与所述第一磁钢固定的底壁以及自所述底壁边缘朝向所述振膜弯折延伸的侧壁，所述侧壁与所述第一磁钢围设形成所述磁间隙，所述第二通孔设于所述底壁。
优选的，所述盆架包括环绕固定于所述侧壁的第一固定部以及自所述第一固定部的边缘向远离所述音圈方向弯折延伸的第二固定部以及自所述第二固定部远离所述第一固定部的边缘朝向所述振膜弯折延伸的第三固定部，所述振膜固定于所述第三固定部。
优选的，所述侧壁上设有沿垂直振动方向贯穿其上的第三通孔，所述第一固定部上设有插设于所述第三通孔内并固定于所述侧壁的凸出部。
优选的，所述振动系统包括固定与所述振膜并将所述音圈支撑于所述磁间隙内的音圈骨架，所述音圈骨架包括固定于所述振膜朝向所述音圈一侧的第一支撑部、自所述第一支撑部朝向所述磁间隙内弯折延伸的第二支撑部以及自所述第二支撑部远离所述振膜的一端朝向所述第一磁钢弯折延伸的第三支撑部，所述音圈承载于所述第三支撑部朝向所述振膜的表面并贴设于所述第二支撑部朝向所述第一磁钢的表面。
优选的，所述振动系统还包括固定于所述振膜的FPC，所述FPC包括固定于所述振膜的第一连接部、固定于所述第三固定部的第二连接部以及连接所述第一连接部和所述第二连接部的若干间隔设置的弹性部，所述第一连接部固定于所述第一支撑部远离所述振膜的表面。
优选的，所述第二支撑部上设有沿垂直振动方向贯穿其上的第四通孔，所述音圈包括与所述FPC电连接的音圈引线，所述音圈引线穿过所述第四通孔与所述第一连接部电连接。
 有益效果
与相关技术相比，本实用新型提供的耳机芯包括盆架以及固定于所述盆架的振动系统和磁路系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜朝向所述磁路系统一侧的音圈，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的第一磁钢，所述耳机芯还包括沿振动方向固定于所述第一磁钢的高音MEMS扬声器，所述MEMS扬声器、所述音圈以及所述振膜沿振动方向同轴设置。所述振动系统和所述磁路系统用于提供低音和中音音效，所述MEMS扬声器提供高音音效，有效降低了同轴高中低音组合的轴向高度。
 附图说明
图1是本实用新型中耳机芯的立体图；
图2是本实用新型中耳机芯的爆炸图；
图3为图1中沿A-A线的剖视图；
图4为图3中B部分的放大图；
图5为本实用新型中耳机芯的振膜的立体图；
图6为本实用新型中耳机芯的FPC的立体图；
图7为本实用新型另一实施例中耳机芯的立体图；
图8为图7中沿C-C线的剖视图；
图9中图7中耳机芯的仰视图。
 本发明的实施方式
下面结合附图和具体实施方式，对本实用新型的技术方案进行清楚、完整地说明。
如图1-图6所示，本实用新型提供了一种耳机芯100，该耳机芯100包括具有收容空间10的盆架1以及固定于所述盆架1的振动系统2和具有磁间隙30的磁路系统3以及用于提供高音音效的高音MEMS扬声器4。
所述振动系统2包括固定于所述盆架1的振膜21、固定于所述振膜21朝向所述磁路系统3一侧的音圈22、固定于所述振膜21并将所述音圈22支撑于所述磁间隙30内的音圈骨架23以及固定于振膜21的FPC24；所述FPC24将所述音圈22与外部电路电连接，所述音圈22通电后带动所述振膜21沿振动方向振动发声。
所述磁路系统3包括固定于所述盆架1的磁轭31、固定于所述磁轭31的第一磁钢32、固定于所述第一磁钢32朝向所述振膜21一侧的极芯33以及固定于所述极芯33远离所述第一磁钢32一侧的第二磁钢34。具体的，所述磁轭31包括与所述第一磁钢32固定的底壁311以及自所述底壁311边缘朝向所述振膜21弯折延伸的侧壁312，所述侧壁312与所述第一磁钢32围设形成所述磁间隙30。
所述盆架1包括环绕固定于所述侧壁312的第一固定部11以及自所述第一固定部11的边缘向远离所述音圈22方向弯折延伸的第二固定部12以及自所述第二固定部12远离所述第一固定部11的边缘朝向所述振膜21弯折延伸的第三固定部13。所述振膜21固定于所述第三固定部13。
具体的，在所述振动系统2中，所述音圈骨架23包括固定于所述振膜21朝向所述音圈22一侧的第一支撑部231、自所述第一支撑部231朝向所述磁间隙30内弯折延伸的第二支撑部232以及自所述第二支撑部232远离所述振膜21的一端朝向所述第一磁钢32弯折延伸的第三支撑部233，所述音圈22承载于所述第三支撑部233朝向所述振膜21的表面并贴设于所述第二支撑部232朝向所述第一磁钢32的表面。通过将所述音圈骨架23的所述第二支撑部232以及所述第三支撑部233包裹所述音圈22，可以将该两部分看作是所述振动系统2的球顶，提升了所述振动系统2和所述磁路系统3组成的中低音发声单元的声学性能。
如图4和图6所示，所述FPC24包括固定于所述振膜21的第一连接部241、固定于所述第三固定部13的第二连接部242以及连接所述第一连接部241和所述第二连接部242的若干间隔设置的弹性部243，所述第一连接部241固定于所述音圈骨架23的所述第一支撑部231远离所述振膜21的表面。
进一步的，所述第二支撑部232上设有沿垂直振动方向贯穿其上的第四通孔2321，所述音圈22包括与所述FPC24电连接的音圈引线221，所述音圈221引线穿过所述第四通孔2321与所述第一连接部241电连接。
具体的，用于提供高音音效的所述MEMS扬声器4沿振动方向固定于所述第一磁钢32，所述MEMS扬声器4、所述音圈22以及所述振膜21沿振动方向同轴设置。可以理解的是，本实用新型中提供的耳机芯100中，所述振动系统2和所述磁路系统3形成的发声单元主要用于提供低频和中频的声音，而所述MEMS扬声器4用于提供高频的声音，因此，在所述耳机芯100中，用于提供低音和中音的发声单元与用于提供高音的MEMS扬声器4同轴设置，有效降低了同轴高中低音组合的轴向高度，节省了微型TWS耳机及穿戴类消费电子产品中的产品设计空间，使得本实用新型提供的耳机芯100具有更大的应用空间。
在本实施例中，如图5所示，所述振膜21上设有沿振动方向贯穿其上的第一通孔211，所述振膜21包括围设形成所述第一通孔211的内边缘212、固定于所述盆架1的所述第三固定部13的外边缘213以及设于所述内边缘212和所述外边缘213之间的中间部214。其中，所述内边缘212固定于所述第一磁钢32，所述MEMS扬声器4穿过所述第一通孔211固定于所述第二磁钢34；具体的，所述MEMS扬声器4固定于所述第二磁钢34远离所述磁轭31的表面。
此外，为了使得所述盆架1与所述磁轭31之间更好的固定，所述磁轭31的所述侧壁312上设有沿垂直振动方向贯穿其上的第三通孔314，所述第一固定部11上设有插设于所述第三通孔314内并固定于所述侧壁312上的凸出部111；通过设置所述凸出部111，增加了所述第一固定部11与所述侧壁312之间的固定面积，有效提升了结合强度。
如图7至图9所示，本实用新型在另一实施例提供的耳机芯200中，所述磁轭31’的所述底壁311’上设有沿振动方向贯穿其上的第二通孔313’，所述第一磁钢32’固定于所述底壁311’并覆盖所述第二通孔313’，所述MEMS扬声器4’穿过所述第二通孔313’固定于所述第一磁钢32’；具体的，在本实施例中，所述MEMS扬声器4’固定于所述第一磁钢32’远离所述振膜21’的表面。
可以理解的是，所述MEMS扬声器4的具体结构在本实用新型中不作具体限定，只要可以用于发出高音频段音效的MEMS扬声器皆可。
与相关技术相比，本实用新型提供的耳机芯包括盆架以及固定于所述盆架的振动系统和磁路系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜朝向所述磁路系统一侧的音圈，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的第一磁钢，所述耳机芯还包括沿振动方向固定于所述第一磁钢的高音MEMS扬声器，所述MEMS扬声器、所述音圈以及所述振膜沿振动方向同轴设置。所述振动系统和所述磁路系统用于提供低音和中音音效，所述MEMS扬声器提供高音音效，有效降低了同轴高中低音组合的轴向高度。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (10)

  1. 一种耳机芯，其包括具有收容空间的盆架以及固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架的振膜以及固定于所述振膜朝向所述磁路系统一侧的音圈，所述音圈插设于所述磁间隙，所述磁路系统包括固定于所述盆架的磁轭以及固定于所述磁轭的第一磁钢，其特征在于，所述耳机芯还包括沿振动方向固定于所述第一磁钢的高音MEMS扬声器，所述MEMS扬声器、所述音圈以及所述振膜沿振动方向同轴设置。
  2. 根据权利要求1所述的耳机芯，其特征在于，所述振膜上设有沿振动方向贯穿其上的第一通孔，所述振膜包括围设形成所述第一通孔的内边缘以及固定于所述盆架的外边缘，所述内边缘固定于所述第一磁钢，所述MEMS扬声器穿过所述第一通孔固定于所述第一磁钢。
  3. 根据权利要求2所述的耳机芯，其特征在于，所述磁路系统还包括固定于所述第一磁钢朝向所述振膜一侧的极芯以及固定于所述极芯远离所述第一磁钢一侧的第二磁钢，所述内边缘固定于所述第二磁钢，所述MEMS扬声器穿过所述通孔固定于所述第二磁钢。
  4. 根据权利要求1所述的耳机芯，其特征在于，所述磁轭上设有沿振动方向贯穿其上的第二通孔，所述第一磁钢固定于所述磁轭并覆盖所述第二通孔，所述MEMS扬声器穿过所述第二通孔固定于所述第一磁钢。
  5. 根据权利要求4所述的耳机芯，其特征在于，所述磁轭包括与所述第一磁钢固定的底壁以及自所述底壁边缘朝向所述振膜弯折延伸的侧壁，所述侧壁与所述第一磁钢围设形成所述磁间隙，所述第二通孔设于所述底壁。
  6. 根据权利要求5所述的耳机芯，其特征在于，所述盆架包括环绕固定于所述侧壁的第一固定部以及自所述第一固定部的边缘向远离所述音圈方向弯折延伸的第二固定部以及自所述第二固定部远离所述第一固定部的边缘朝向所述振膜弯折延伸的第三固定部，所述振膜固定于所述第三固定部。
  7. 根据权利要求6所述的耳机芯，其特征在于，所述侧壁上设有沿垂直振动方向贯穿其上的第三通孔，所述第一固定部上设有插设于所述第三通孔内并固定于所述侧壁的凸出部。
  8. 根据权利要求6所述的耳机芯，其特征在于，所述振动系统包括固定与所述振膜并将所述音圈支撑于所述磁间隙内的音圈骨架，所述音圈骨架包括固定于所述振膜朝向所述音圈一侧的第一支撑部、自所述第一支撑部朝向所述磁间隙内弯折延伸的第二支撑部以及自所述第二支撑部远离所述振膜的一端朝向所述第一磁钢弯折延伸的第三支撑部，所述音圈承载于所述第三支撑部朝向所述振膜的表面并贴设于所述第二支撑部朝向所述第一磁钢的表面。
  9. 根据权利要求8所述的耳机芯，其特征在于，所述振动系统还包括固定于所述振膜的FPC，所述FPC包括固定于所述振膜的第一连接部、固定于所述第三固定部的第二连接部以及连接所述第一连接部和所述第二连接部的若干间隔设置的弹性部，所述第一连接部固定于所述第一支撑部远离所述振膜的表面。
  10. 根据权利要求9所述的耳机芯，其特征在于，所述第二支撑部上设有沿垂直振动方向贯穿其上的第四通孔，所述音圈包括与所述FPC电连接的音圈引线，所述音圈引线穿过所述第四通孔与所述第一连接部电连接。
PCT/CN2022/107736 2022-06-29 2022-07-26 耳机芯 WO2024000707A1 (zh)

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WO2018236140A1 (ko) * 2017-06-22 2018-12-27 유수진 하이브리드 스피커
CN114390407A (zh) * 2022-01-25 2022-04-22 瑞声光电科技(常州)有限公司 同轴扬声器
CN114598973A (zh) * 2020-12-07 2022-06-07 华为技术有限公司 一种扬声器及电子设备
CN114650489A (zh) * 2022-03-10 2022-06-21 歌尔股份有限公司 扬声器及发声设备

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Publication number Priority date Publication date Assignee Title
WO2018236140A1 (ko) * 2017-06-22 2018-12-27 유수진 하이브리드 스피커
CN114598973A (zh) * 2020-12-07 2022-06-07 华为技术有限公司 一种扬声器及电子设备
CN114390407A (zh) * 2022-01-25 2022-04-22 瑞声光电科技(常州)有限公司 同轴扬声器
CN114650489A (zh) * 2022-03-10 2022-06-21 歌尔股份有限公司 扬声器及发声设备

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