WO2020134314A1 - 一种扬声器 - Google Patents

一种扬声器 Download PDF

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Publication number
WO2020134314A1
WO2020134314A1 PCT/CN2019/110101 CN2019110101W WO2020134314A1 WO 2020134314 A1 WO2020134314 A1 WO 2020134314A1 CN 2019110101 W CN2019110101 W CN 2019110101W WO 2020134314 A1 WO2020134314 A1 WO 2020134314A1
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WO
WIPO (PCT)
Prior art keywords
filler
hole
voice coil
basin
magnet
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/CN2019/110101
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English (en)
French (fr)
Inventor
曹成铭
肖波
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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Publication date
Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Technologies Pte Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2020134314A1 publication Critical patent/WO2020134314A1/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • 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
    • H04R9/025—Magnetic circuit
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery

Definitions

  • the utility model belongs to the technical field of sound generators, and particularly relates to a speaker.
  • the speaker is an acoustic component commonly used in electronic equipment and is an electro-acoustic converter.
  • Existing speakers usually include a housing with a cavity, a vibration structure and a magnetic circuit structure.
  • the vibration structure and the magnetic circuit structure are provided in the housing In the cavity, the cavity is divided into a front cavity and a rear cavity.
  • the rear cavity is a sealed cavity, but a completely sealed rear cavity will affect the vibration of the vibrating structure and affect the acoustic performance of the speaker.
  • Leakage holes will be opened in the casing, and damping will be applied to the leakage holes to achieve dustproof and sound resistance adjustment, but the damping does not adjust the F0 (lowest resonance frequency) of the speaker, and the speaker cannot obtain good acoustic performance.
  • the technical problem to be solved by the utility model is to provide a loudspeaker, which can realize dust prevention and sound resistance adjustment, and at the same time can adjust the F0 of the loudspeaker, so that the loudspeaker can obtain good acoustic performance.
  • a loudspeaker includes a basin stand, a vibration structure and a magnetic circuit structure fixed to the basin stand, the vibration structure, the magnetic circuit structure and the
  • the basin frame forms a rear cavity of the speaker, and the basin frame is provided with a leakage hole connecting the rear cavity and the outside world, and a filler is provided in the leakage hole, and the filler matches the leakage hole
  • the sound-absorbing material is used for the filler.
  • an upper cover is provided on the basin frame, and a front cavity opposite to the rear cavity is formed between the vibration structure and the upper cover at intervals.
  • At least one leak hole is opened on the peripheral side of the basin shelf.
  • the two sides of the basin shelf are provided with the leakage holes, and each side is provided with at least one leakage hole.
  • the filling member extends into the rear cavity.
  • the magnetic circuit structure includes a magnet, a washer, and a magnetic yoke.
  • the magnetic yoke includes a base plate and a side plate.
  • the side plate is disposed on a peripheral side of the base plate and protrudes from the plate surface of the base plate , When the magnetic yoke is assembled on the basin frame, the side plate extends into the rear cavity; the magnet is assembled on the base plate, the washer is assembled on the far side of the magnet One side of the substrate.
  • the vibrating structure includes a voice coil, a diaphragm and a dome, the voice coil is sleeved outside the magnet, the voice coil is located between the side plate and the magnet, the diaphragm and the The voice coil is connected and is located on a side of the voice coil away from the substrate, and the dome is disposed on a side of the diaphragm facing away from the voice coil.
  • a sound output hole is opened on the upper cover, and the sound output hole communicates with the front cavity.
  • a dust cap is provided on the upper cover, and the dust cap is closed on the sound output hole.
  • a locking protrusion is provided on the top side of the basin holder, and a locking hole corresponding to the locking protrusion is opened on the upper cover, and the locking hole is engaged with the locking protrusion.
  • a filler is provided on the leak hole on the basin stand, and the filler is made of sound-absorbing material, which can achieve the effects of dust prevention and adjustment of sound resistance, and at the same time can adjust the minimum resonance frequency of the rear cavity, thereby adjusting the F0 of the speaker and enabling the speaker Get good acoustic performance.
  • FIG. 1 is a schematic diagram of the overall structure of the speaker in the embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the exploded structure of the speaker in the embodiment of the present invention.
  • Figure 3 is a schematic cross-sectional view of the A-A plane in Figure 1;
  • FIG. 4 is an isometric view of FIG. 3.
  • each reference sign indicates: 1. Basin stand; 11. Card protrusion; 111. Leakage hole; 131. Sound hole; 132. Dust cap; 2. Vibration structure; 21. Voice coil; 22. Diaphragm; 23, dome; 3. magnetic circuit structure; 31, magnet; 32, washer; 33, magnetic yoke; 331, substrate; 332, side plate; 4, filler; 5, upper cover; 51, Card hole.
  • the speaker includes: a basin frame 1, a vibration structure 2 fixed to the basin frame 1 and a magnetic circuit structure 3, the vibration structure 2, the magnetic circuit structure 3 and the basin frame 1 are surrounded by The back cavity of the loudspeaker is formed, and the basin frame 1 is provided with a leakage hole 111 connecting the rear cavity and the outside world.
  • a filler 4 is provided in the leakage hole 111. The filler 4 matches the leakage hole 111, and the filler 4 uses a sound-absorbing material.
  • a filler 4 is provided on the leakage hole 111 of the basin holder 1, and the filler 4 uses sound absorbing material, which can achieve the effects of dustproof and sound resistance adjustment, and at the same time can adjust the lowest resonance frequency of the rear cavity, thereby adjusting the F0 of the speaker , Can make the speaker get good acoustic performance.
  • the basin frame 1 is provided with an upper cover 5, and a space between the vibration structure 2 and the upper cover 5 forms a front cavity opposite to the rear cavity.
  • the magnetic circuit structure 3 includes a magnet 31, a washer 32, and a magnetic yoke 33.
  • the magnetic yoke 33 includes a base plate 331 and a side plate 332.
  • the side plate 332 is disposed on the peripheral side of the base plate 331 and protrudes from the plate surface of the base plate 331.
  • the basin frame 1 has a rectangular frame shape
  • the base plate 331 is a rectangular plate
  • the side plate 332 is provided on the peripheral side of the base plate 331 and protrudes from the plate surface of the base plate 331 That is, the four edges of the substrate 331 are provided with a side plate 332
  • the magnet 31 is mounted on the substrate 331
  • the washer 32 is mounted on the side of the magnet 31 away from the substrate 331
  • the side plate 332 surrounds the magnet 31, There is a gap between the side plate 332 and the magnet 31
  • the vibration structure 2 includes a voice coil 21, a diaphragm 22 and a dome 23, the voice coil 21 is sleeved outside the magnet 31, and the voice coil 21 is located between the side plate 332 and the magnet 31,
  • the diaphragm 22 is connected to the voice coil 21 and is located on the side of the voice coil 21 away from the substrate 331, and at the same time, the edge of the diaphragm 22 is connected to the basin frame 1, and
  • At least one leakage hole 111 is provided on the peripheral side of the basin holder 1, leakage holes 111 are provided on opposite sides of the basin holder 1, and at least one leakage hole 111 is provided on each side, and filling is provided in the leakage holes 111 Piece 4.
  • the basin frame 1 since the basin frame 1 has a rectangular frame shape, it is preferable that two leakage holes 111 are respectively provided at the two long sides of the basin frame 1, the leakage hole 111 communicates with the rear cavity, and the leakage hole The opening of 111 is rectangular, and a filler 4 is provided in the leakage hole 111.
  • the filler 4 extends toward the rear cavity to fill a part of the rear cavity.
  • the filler 4 is prefabricated with a sound-absorbing material and is inserted when the filler 4 is assembled
  • the leakage hole 111 is sufficient, and it is convenient and quick to install.
  • the sound absorbing material may be foam material, etc., and the sound absorbing material may be fibrous or granular.
  • two, three, four, five, etc. leakage holes 111 may be opened at the two long sides of the basin frame 1 respectively, the shape of the leakage hole 111 It may be circular, triangular, quadrangular, pentagonal, hexagonal, etc., and corresponding fillers 4 are provided in the leakage holes 111. Of course, different numbers of leakage holes 111 may be provided on the two long sides.
  • the four sides of the pot holder 1 may all have leakage holes 111.
  • the pot holder 1 may also be a frame type of circular, triangular, square, pentagonal, hexagonal, etc., and one, two, three, four, etc. are provided on the peripheral side of the pot holder 1
  • the leakage hole 111 may have a shape of a circle, a triangle, a quadrangle, a pentagon, a hexagon, etc.
  • a corresponding filler 4 is provided in the leakage hole 111.
  • the top side of the basin holder 1 is provided with a locking protrusion 11, the upper cover 5 is provided with a locking hole 51 corresponding to the locking protrusion 11, the locking hole 51 and the locking protrusion 11 are snap-fitted, and the upper cover 5 is snap-fitted on the basin holder 1 ;
  • the upper cover 5 is provided with two sound holes 131, the sound hole 131 communicates with the front cavity, the upper cover 5 is provided with a dust cap 132, the dust cap 132 is closed on the sound hole 131 to prevent dust .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本实用新型提供了一种扬声器，包括：盆架、固定于所述盆架的振动结构和磁路结构，所述振动结构、所述磁路结构以及所述盆架共同围成所述扬声器的后腔，所述盆架上开设有连通所述后腔和外界的泄露孔，所述泄露孔内设置有填充件，所述填充件与所述泄露孔匹配，所述填充件采用吸音材料。在盆架上的泄露孔上设置填充件，且填充件采用吸音材料，能够实现防尘和调节声阻的作用，同时还能调节后腔的最低共振频率，从而调节扬声器的F0，能够使扬声器获得良好的声学性能。

Description

一种扬声器 技术领域
本实用新型属于发声器技术领域，尤其涉及一种扬声器。
 背景技术
扬声器是常用于电子设备中的声学部件，是一种电声转换器，现有的扬声器通常包括具有空腔的壳体、振动结构和磁路结构，振动结构和磁路结构设置在壳体的空腔内且将空腔分隔为前腔和后腔，通常后腔是密封的腔体，可是后腔完全密封会影响振动结构的振动，对扬声器的声学性能产生影响，因此现有技术中通常会在壳体上开设泄露孔，并在泄露孔处贴阻尼实现防尘和调节声阻，但是采用阻尼并不能调节扬声器的F0（最低共振频率），无法使扬声器得到良好的声学性能。
 技术问题
本实用新型所要解决的技术问题在于提供一种扬声器，能够实现防尘和调节声阻，同时还能调节扬声器的F0，从而使扬声器获得良好的声学性能。
 技术解决方案
为解决上述技术问题，本实用新型是这样实现的，一种扬声器，包括：盆架、固定于所述盆架的振动结构和磁路结构，所述振动结构、所述磁路结构以及所述盆架共同围成所述扬声器的后腔，所述盆架上开设有连通所述后腔和外界的泄露孔，所述泄露孔内设置有填充件，所述填充件与所述泄露孔匹配，所述填充件采用吸音材料。
进一步地，所述盆架上设置有上盖，所述振动结构与所述上盖之间间隔形成与所述后腔相对的前腔。
进一步地，所述盆架的周侧开设有至少一个泄露孔。
进一步地，所述盆架的相对的两侧均设有所述泄露孔，且每一侧上开设有至少一个泄露孔。
进一步地，所述填充件伸入到所述后腔内。
进一步地，所述磁路结构包括磁体、华司和导磁轭，所述导磁轭包括基板和侧板，所述侧板设置在所述基板的周侧且突出于所述基板的板面，当所述导磁轭装配在所述盆架上时，所述侧板伸入到所述后腔内；所述磁体装配在所述基板上，所述华司装配在所述磁体的远离所述基板的一侧。
进一步地，所述振动结构包括音圈、振膜和球顶，所述音圈套设在所述磁体外，所述音圈位于所述侧板和所述磁体之间，所述振膜与所述音圈相连且位于所述音圈的远离所述基板的一侧，所述球顶设置在所述振膜的背对所述音圈的一侧。
进一步地，所述上盖上开设有出音孔，所述出音孔与所述前腔连通。
进一步地，所述上盖上设置有防尘帽，所述防尘帽盖合在所述出音孔上。
进一步地，所述盆架的顶侧设置有卡凸，所述上盖上开设有与所述卡凸对应的卡孔，所述卡孔和所述卡凸卡扣配合。
 有益效果
本实用新型中扬声器与现有技术相比，有益效果在于：
在盆架上的泄露孔上设置填充件，且填充件采用吸音材料，能够实现防尘和调节声阻的作用，同时还能调节后腔的最低共振频率，从而调节扬声器的F0，能够使扬声器获得良好的声学性能。
 附图说明
图1是本实用新型实施例中扬声器的整体结构示意图；
图2是本实用新型实施例中扬声器的分解结构示意图；
图3是图1中A-A面剖切示意图;
图4是图3的轴测图。
在附图中，各附图标记表示：1、盆架；11、卡凸；111、泄露孔；131、出音孔；132、防尘帽；2、振动结构；21、音圈；22、振膜；23、球顶；3、磁路结构；31、磁体；32、华司；33、导磁轭；331、基板；332、侧板；4、填充件；5、上盖；51、卡孔。
 本发明的实施方式
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。
实施例：
在本实施例中，如图1-4所示，扬声器包括：盆架1、固定于盆架1的振动结构2和磁路结构3，振动结构2、磁路结构3以及盆架1共同围成扬声器的后腔，盆架1上开设有连通后腔和外界的泄露孔111，泄露孔111内设置有填充件4，填充件4与泄露孔111匹配，填充件4采用吸音材料。
在盆架1上的泄露孔111上设置填充件4，且填充件4采用吸音材料，能够实现防尘和调节声阻的作用，同时还能调节后腔的最低共振频率，从而调节扬声器的F0，能够使扬声器获得良好的声学性能。
盆架1上设置有上盖5，振动结构2与上盖5之间间隔形成与后腔相对的前腔。磁路结构3包括磁体31、华司32和导磁轭33，导磁轭33包括基板331和侧板332，侧板332设置在基板331的周侧且突出于基板331的板面，当导磁轭33装配在盆架1上时，侧板332伸入到后腔内；磁体31装配在基板331上，华司32装配在磁体31的远离基板331的一侧。
具体的，如图2-4所示，在本实施例中，盆架1呈矩形框的形状，基板331为矩形板，侧板332设置在基板331的周侧且突出于基板331的板面，即基板331的四个边缘处均设置有一个侧板332；磁体31装配在基板331上，华司32装配在磁体31的远离基板331的一侧，侧板332围在磁体31的周围，侧板332和磁体31之间具有间隙；振动结构2包括音圈21、振膜22和球顶23，音圈21套设在磁体31外，音圈21位于侧板332和磁体31之间，振膜22与音圈21相连且位于音圈21的远离基板331的一侧，同时，振膜22的边缘与盆架1相连，球顶23设置在振膜22的背对音圈21的一侧，球顶23与音圈21位置正对，后腔为振膜22、盆架1和导磁轭33围合形成的空间，前腔为振膜22和上盖5围合形成的空间。
盆架1的周侧开设有至少一个泄露孔111，盆架1的相对的两侧均设有泄露孔111，且每一侧上开设有至少一个泄露孔111，泄露孔111内均设置有填充件4。具体的，在本实施例中，由于盆架1呈矩形框型，优选地，在盆架1的两个长侧边处分别开设有一个泄露孔111，泄露孔111与后腔连通，泄露孔111的孔口呈矩形，泄露孔111内设置填充件4，填充件4朝后腔延伸以填充后腔的一部分，填充件4采用吸音材料预制成，在装配填充件4时将其塞入泄露孔111内即可，安装时方便快捷，吸音材料可以采用泡棉材料等，并且吸音材料可以呈纤维状或颗粒状。在其他实施例中，盆架1为矩形框型时，盆架1的两个长侧边处可以分别开设两个、三个、四个、五个等的泄露孔111，泄露孔111的形状可以是圆形、三角形、四边形、五边形、六边形等，泄露孔111内设置相应的填充件4，当然，两个长侧边上也可以开设数量不同的泄露孔111。在其他实施例中，盆架1为矩形框型时，盆架1的四个侧边处可以均开设泄露孔111。在其他实施例中，盆架1也可以是圆形、三角形、方形、五边形、六边形等的框型，盆架1的周侧设置一个、两个、三个、四个等的泄露孔111，泄露孔111的形状可以是圆形、三角形、四边形、五边形、六边形等，泄露孔111内设置相应的填充件4。
盆架1的顶侧设置有卡凸11，上盖5上开设有与卡凸11对应的卡孔51，卡孔51和卡凸11卡扣配合，上盖5卡扣装配在盆架1上；上盖5上开设有两个出音孔131，出音孔131与前腔连通，上盖5上设置有防尘帽132，防尘帽132盖合在出音孔131上以进行防尘。
以上仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型的保护范围之内。

Claims (10)

  1. 一种扬声器，其特征在于，包括：盆架(1)、固定于所述盆架(1)的振动结构(2)和磁路结构(3)，所述振动结构(2)、所述磁路结构(3)以及所述盆架(1)共同围成所述扬声器的后腔，所述盆架(1)上开设有连通所述后腔和外界的泄露孔(111)，所述泄露孔(111)内设置有填充件(4)，所述填充件(4)与所述泄露孔(111)匹配，所述填充件(4)采用吸音材料。
  2. 根据权利要求1所述的扬声器，其特征在于，所述盆架(1)上设置有上盖(5)，所述振动结构(2)与所述上盖(5)之间间隔形成与所述后腔相对的前腔。
  3. 根据权利要求2所述的扬声器，其特征在于，所述盆架(1)的周侧开设有至少一个泄露孔(111)。
  4. 根据权利要求3所述的扬声器，其特征在于，所述盆架(1)的相对的两侧均设有所述泄露孔(111)，且每一侧上开设有至少一个泄露孔(111)。
  5. 根据权利要求1-4中任意一项所述的扬声器，其特征在于，所述填充件(4)伸入到所述后腔内。
  6. 根据权利要求1所述的扬声器，其特征在于，所述磁路结构(3)包括磁体(31)、华司(32)和导磁轭(33)，所述导磁轭(33)包括基板(331)和侧板(332)，所述侧板(332)设置在所述基板(331)的周侧且突出于所述基板(331)的板面，当所述导磁轭(33)装配在所述盆架(1)上时，所述侧板(332)伸入到所述后腔内；
    所述磁体(31)装配在所述基板(331)上，所述华司(32)装配在所述磁体(31)的远离所述基板(331)的一侧。
  7. 根据权利要求6所述的扬声器，其特征在于，所述振动结构(2)包括音圈(21)、振膜(22)和球顶(23)，所述音圈(21)套设在所述磁体(31)外，所述音圈(21)位于所述侧板(332)和所述磁体(31)之间，所述振膜(22)与所述音圈(21)相连且位于所述音圈(21)的远离所述基板(331)的一侧，所述球顶(23)设置在所述振膜(22)的背对所述音圈(21)的一侧。
  8. 根据权利要求2所述的扬声器，其特征在于，所述上盖(5)上开设有出音孔(131)，所述出音孔(131)与所述前腔连通。
  9. 根据权利要求8所述的扬声器，其特征在于，所述上盖(5)上设置有防尘帽(132)，所述防尘帽(132)盖合在所述出音孔(131)上。
  10. 根据权利要求2所述的扬声器，其特征在于，所述盆架(1)的顶侧设置有卡凸(11)，所述上盖(5)上开设有与所述卡凸(11)对应的卡孔(51)，所述卡孔(51)和所述卡凸(11)卡扣配合。
PCT/CN2019/110101 2018-12-27 2019-10-09 一种扬声器 Ceased WO2020134314A1 (zh)

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CN209390330U (zh) * 2018-12-27 2019-09-13 瑞声科技(新加坡)有限公司 一种扬声器
WO2020258260A1 (zh) * 2019-06-28 2020-12-30 瑞声声学科技(深圳)有限公司 一种扬声器
CN211019218U (zh) * 2019-11-25 2020-07-14 瑞声科技(新加坡)有限公司 扬声器及音频设备
CN211019219U (zh) * 2019-11-25 2020-07-14 瑞声科技(新加坡)有限公司 扬声器及音频设备
CN210781334U (zh) * 2019-11-25 2020-06-16 瑞声科技(新加坡)有限公司 扬声器及音频设备
CN114553321B (zh) * 2021-12-14 2023-08-22 北京理工大学 一种声波发射装置
CN217656735U (zh) * 2021-12-30 2022-10-25 瑞声光电科技(常州)有限公司 发声器件
WO2024243762A1 (zh) * 2023-05-29 2024-12-05 瑞声光电科技(常州)有限公司 扬声器箱

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