WO2020258260A1 - 一种扬声器 - Google Patents

一种扬声器 Download PDF

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Publication number
WO2020258260A1
WO2020258260A1 PCT/CN2019/093735 CN2019093735W WO2020258260A1 WO 2020258260 A1 WO2020258260 A1 WO 2020258260A1 CN 2019093735 W CN2019093735 W CN 2019093735W WO 2020258260 A1 WO2020258260 A1 WO 2020258260A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
magnetic
basin frame
gap
fixed
Prior art date
Application number
PCT/CN2019/093735
Other languages
English (en)
French (fr)
Inventor
张古清
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2019/093735 priority Critical patent/WO2020258260A1/zh
Priority to CN201921052775.8U priority patent/CN210093530U/zh
Priority to US16/994,652 priority patent/US11245978B2/en
Publication of WO2020258260A1 publication Critical patent/WO2020258260A1/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
    • H04R1/20—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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
    • 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
    • H04R9/025—Magnetic circuit
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10083—Electromechanical or electro-acoustic component, e.g. microphone

Definitions

  • the utility model relates to the field of sound and electricity, in particular to a loudspeaker.
  • a speaker is a transducer device that converts an electrical signal into an acoustic signal.
  • the speaker is widely used in various audio and mobile terminal equipment, and mobile phones are undoubtedly the most common mobile terminal equipment. At present, mobile phones have diverse functions, one of them It is high-quality music, and the speaker is one of the necessary conditions for this function.
  • the loudspeaker usually includes a magnetic circuit system, a vibration system and a basin frame.
  • the vibration system has a diaphragm that pushes air when the diaphragm vibrates to produce sound.
  • the air below the diaphragm is blocked by the magnetic circuit system and the basin when it flows, causing it to flow improperly, resulting in noise and affecting the sense of hearing.
  • the utility model aims at solving the problem that the air flow under the diaphragm is not smooth when the speaker vibration system vibrates and affects the sense of hearing, and provides a new type of speaker.
  • the present invention provides a loudspeaker including a basin frame and a vibration system and a magnetic circuit system installed on the basin frame.
  • the vibration system includes a diaphragm fixed on the basin frame and supported on the frame.
  • the vibration system includes a magnetic bowl fixed on the side of the basin frame away from the diaphragm, and a main magnet part and an edge magnet part fixed on the magnetic bowl.
  • the edge magnet The part is located on opposite sides of the main magnet part and is spaced apart from the main magnet part to form a magnetic gap, the end of the voice coil away from the diaphragm is suspended in the magnetic gap, and the side magnet part includes A side magnet fixed to the magnetic bowl and a splint stacked on a side of the side magnet far away from the magnetic bowl, the splint and the diaphragm form a gap communicating with the magnetic gap
  • the speaker further includes a leakage passage extending from the splint through the basin frame to the outside of the basin frame; one end of the leakage passage communicates with the gap, and the other end communicates with the outside of the speaker.
  • the channel includes a through hole provided on the clamping plate and a through groove provided on the basin frame, the through hole communicates with the gap, and the through groove connects the through hole with the The outside of the speaker communicates.
  • the splint includes two first side plates arranged opposite to each other corresponding to the side magnets, and two second side plates respectively connected between the two ends of the first side plates
  • the basin frame includes an annular body and a support part extending from an end of the annular body away from the diaphragm toward the voice coil for supporting the clamping plate, and the through hole is provided in the second side plate On the side far away from the voice coil, the through groove is provided at a position where the annular body is aligned with the corresponding through hole.
  • the through hole penetrates the second side plate along the vibration direction of the voice coil, and the through groove penetrates the annular body along the vibration direction perpendicular to the vibration direction.
  • a convex block is provided on the first side plate, and a groove matching the shape of the convex block is positioned on the supporting portion.
  • each of the second side plates is provided with three through holes at intervals.
  • the vibration system further includes a centering support piece fixed on the side of the voice coil away from the diaphragm, one end of the centering support piece is connected to the voice coil, and the other end is connected to the cone
  • the frame is fixed, and the centering support piece and the side magnet are located on different sides of the basin frame.
  • the magnetic bowl includes a main body portion that fixes the main magnet portion and the side magnets, and a flange extending from the main body portion toward the centering support piece, and the centering support piece includes A flexible circuit board fixed to the flange and a lower sound film sandwiched between the flexible circuit board and the frame; the lower sound film includes a first edge portion fixed to the voice coil, and The first edge portion is provided with a second edge portion at intervals and a folding ring portion connected between the first edge portion and the second edge portion, and the second edge portion is fixed to the basin frame, so The folding ring portion is an arc structure that bends and extends away from the flexible circuit board.
  • the splint and the basin frame are integrally molded by injection molding, and injection positioning holes are opened on the splint.
  • the beneficial effect of the present invention is that by providing a leakage channel on the speaker, one end of the leakage channel communicates with the gap and the other end communicates with the outside of the speaker. Therefore, when the vibration system vibrates downward, the air in the gap can be discharged through the leakage channel. Make the air circulate smoothly, avoid noise and improve the sense of hearing.
  • Figure 1 is a schematic diagram of the structure of the speaker of the utility model
  • Figure 2 is a sectional view taken along line A-A of the figure
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 1
  • Fig. 4 is a schematic diagram from another angle of Fig. 1;
  • Figure 5 is an exploded schematic diagram of the speaker of the present invention.
  • Figure 6 is a schematic diagram of the assembly of the splint and the basin frame shown in Figure 5;
  • Figure 7 is a schematic view of the structure of the splint shown in Figure 6;
  • Fig. 8 is a schematic structural diagram of the basin frame shown in Fig. 6.
  • an element when an element is referred to as being “fixed on” or “disposed on” another element, the element may be directly on the other element or there may be a centering element at the same time.
  • an element When an element is referred to as being “connected” to another element, it can be directly connected to the other element or an intermediate element may also exist.
  • a speaker 100 provided in accordance with an embodiment of the present invention includes a basin frame 10, a vibration system 20, and a magnetic circuit system 30.
  • the basin frame 10 is used to support the vibration system 20 and the magnetic circuit system 30.
  • the magnetic circuit system 30 is used to drive the vibration system 20 to vibrate and produce sound, and the vibration direction of the vibration system 20 is the axial direction of the speaker 100.
  • the vibration system 20 includes a diaphragm 21, a voice coil 22, and a centering support piece 23.
  • the centering support piece 23 includes a lower sound diaphragm 24 and a flexible circuit board 25.
  • the vibration system 20 is connected to the basin frame 10 through the diaphragm 21, and the diaphragm 21 It includes a middle dome 211 and an upper sound diaphragm 212.
  • the opposite sides of the upper sound diaphragm 212 are respectively connected to the basin frame 10 and the middle dome 211.
  • One axial end of the voice coil 22 is close to the middle dome 211 of the upper sound diaphragm 212.
  • One end is connected, and the other axial end is connected to the flexible circuit board 25 through the lower sound film 24.
  • the voice coil 22 When an alternating current is applied to the voice coil 22 through the flexible circuit board 25, the voice coil 22 will be under the action of the magnetic field of the magnetic circuit system 30 Vibration occurs and drives the entire vibration system 20 to vibrate, causing the diaphragm 21 to press the air to generate sound.
  • the magnetic circuit system 30 includes a magnetic bowl 31 fixed to the basin frame 10 and a main magnet portion 32 and a side magnet portion 33 fixed to the magnetic bowl 31.
  • the main magnet portion 32 and the side magnet portion 33 are spaced apart to form a magnetic gap.
  • the main magnet portion 32 It includes a main magnet 321 and a pole core 322 fixed on the side of the main magnet 321 away from the magnetic bowl 31.
  • the side magnet portion 33 includes a side magnet 331 fixed to the magnetic bowl 31 and a splint 332 fixed to the basin frame 10.
  • a gap 40 communicating with the magnetic gap is formed between the diaphragm 332 and the diaphragm 21.
  • the speaker 100 is provided with a leakage passage 50 extending from the splint 332 through the basin frame 10 to the outside of the basin frame 10, and one end of the leakage passage 50 is in communication with the gap 40, The other end is connected to the outside of the speaker 100.
  • One end of the lower sound film 24 is connected between the voice coil 22 and the flexible circuit board 25 along the axis of the speaker 100, and the other end is located between the frame 10 and the flexible circuit board 25 along the axis of the speaker 100. between.
  • the clamping plate 332 and the pole core 322 are made of magnetically conductive materials, and are used to form a magnetic circuit with the main magnet 321 and the side magnet 331 to reduce the magnetic resistance.
  • the splint 332 in the present utility model is ring-shaped, respectively corresponding to the side of the magnetic steel 331 of the two spaced oppositely arranged first side plate 3321 and two connected to the two
  • the second side plate 3322 between the first side plates 3321 is formed by enclosing.
  • the side of the two second side plates 3322 away from the voice coil 22, that is, the outer edge, is provided with a through hole 3323 communicating with the gap 40.
  • the 10 is provided with the through-holes 3323 communicating with the outside of the speaker 100 and the number of through-holes 11 is the same as the number of through-holes 3323, that is, the leakage channel 50 at the junction of the splint 332 and the frame 10, so when the diaphragm 21 vibrates downward
  • the air in the gap 40 can first pass through the through hole 3323 and then be discharged through the through slot 11, so that the air circulates smoothly, avoiding noise, thereby improving the sense of hearing;
  • the diaphragm 21 vibrates upward the outside air can be It enters the speaker 100 through the through slot 11 and the through hole 3323, so that the pressure inside the speaker 100 is the same as the external pressure.
  • each second side plate 3322 is provided with three through holes 3323 at intervals. Understandably, the number of through holes 3323 is not limited to three, for example, one, two or other numbers are also possible.
  • the through hole 3323 is arranged along the axial direction of the loudspeaker 100. It is understandable that the through hole 3323 may also be arranged obliquely along the axial direction of the loudspeaker 100.
  • the basin frame 10 includes a ring body 12, a pedestal 13 arranged at the bottom of the ring body 12, and an end of the ring body 12 away from the diaphragm 21 extending toward the voice coil 22 for use
  • the basin frame 10 and the splint 332 are integrally formed by injection molding.
  • the splint 332 is provided with a number of injection positioning holes 3324.
  • the ring body 12 is provided with positioning posts 121 in alignment, and the through groove 11 is provided.
  • the two first side plates 3321 of the clamping plate 332 are provided with protrusions 3325, and the supporting portion 14 is provided with a groove 141 with a shape matching the shape of the protrusion 3325. Understandably, the basin frame 10 and the splint 332 can also be assembled separately.
  • the lower sound membrane 24 includes a first edge portion 241 fixed to the voice coil 22, a second edge portion 242 arranged at intervals from the first edge portion, and connected to the first edge portion 241 and the second edge
  • the folding ring part 243 between the parts 242, the magnetic bowl 31 includes a main body part 311 for fixing the main magnet 321 and the side magnet 331, and a flange 312 extending from the main body part 311 toward the flexible circuit board 25.
  • the two opposite sides are respectively fixedly connected to the inner end of the voice coil 22 and the flexible circuit board 25, and the two opposite sides of the second edge portion 242 are respectively fixedly connected to the outer end of the frame 10 and the flexible circuit board 25, and the flexible circuit board
  • the side of the outer end portion 25 away from the diaphragm is fixedly connected to the flange 312, and the folding ring portion 243 has an arc structure and is bent and extends in a direction away from the flexible circuit board 25.
  • the beneficial effect of the present invention is that by providing a through hole 3323 communicating with the gap 40 on the splint 332, a through slot 11 connecting the through hole 3323 with the outside of the speaker 100 is provided on the basin frame 10, when the diaphragm 21 vibrates downward At this time, the air in the gap 40 can be discharged through the through hole 3323 and the through slot 11, so that the air circulates smoothly; when the diaphragm 21 vibrates upward, the outside air can enter the inside of the speaker 100 through the through slot 11 and the through hole 3323.
  • the pressure inside the speaker 100 is the same as the external pressure, thereby improving the quality of the speaker 100.

Abstract

一种扬声器，包括盆架以及安装于盆架的振动系统和磁路系统，振动系统包括固定在盆架的振膜以及支撑在振膜一侧的音圈，磁路系统包括固定在盆架远离振膜一侧的磁碗以及固定于磁碗的主磁体部与边磁体部，边磁体部位于主磁体部的相对两侧并与主磁体部间隔设置形成磁间隙，音圈远离振膜的一端悬置于磁间隙内，边磁体部包括固定于磁碗的边磁钢、以及叠设于边磁钢远离磁碗一侧的夹板，夹板与振膜之间间隔形成与磁间隙连通的空隙，扬声器还包括自夹板经盆架延伸至盆架外的泄露通道；泄露通道一端与空隙连通、另一端与扬声器的外侧连通。本扬声器振膜下方的空气可以通过泄漏通道排出，使空气流通顺畅，从而提升听感。

Description

一种扬声器 技术领域
本实用新型涉及声电领域，尤其涉及一种扬声器。
 背景技术
扬声器是一种将电信号转换为声信号的换能器件，扬声器广泛应用于各种音响和移动终端设备中，而手机无疑是最常见的移动终端设备，目前，手机的功能多样，其中之一就是高品质的音乐，而扬声器是实现这个功能的必备条件之一。
扬声器通常都包括磁路系统、振动系统和盆架，振动系统具有振膜，当振膜振动时推压空气从而产生声音。然而，现有扬声器的振膜向下振动时，振膜下方的空气在流动时会受到磁路系统以及盆架的阻挡，使其流动不畅，从而产生杂音，影响听感。
 技术问题
本实用新型针对解决扬声器振动系统振动时振膜下方空气流动不畅而影响听感的问题，提供一种新型的扬声器。
 技术解决方案
为实现上述目的，本实用新型提供了一种扬声器，包括盆架以及安装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在所述盆架的振膜以及支撑在所述振膜一侧的音圈，所述振动系统包括固定在所述盆架远离所述振膜一侧的磁碗以及固定于所述磁碗的主磁体部与边磁体部，所述边磁体部位于所述主磁体部的相对两侧并与所述主磁体部间隔设置形成磁间隙，所述音圈远离所述振膜的一端悬置于所述磁间隙内，所述边磁体部包括固定于所述磁碗的边磁钢、以及叠设于所述边磁钢远离所述磁碗一侧的夹板，所述夹板与所述振膜之间间隔形成与所述磁间隙连通的空隙，所述扬声器还包括自所述夹板经所述盆架延伸至所述盆架外的泄露通道；所述泄露通道一端与所述空隙连通、另一端与所述扬声器的外侧连通。
作为一种改进，所述通道包括设于所述夹板上的通孔和设于所述盆架上的通槽，所述通孔与空隙相连通，所述通槽将所述通孔与所述扬声器的外侧连通。
作为一种改进，所述夹板包括分别对应于所述边磁钢的两个间隔相对设置的第一侧板和两个分别连接于两所述第一侧板两端之间的第二侧板，所述盆架包括环形本体和自所述环形本体远离所述振膜一端朝向所述音圈方向延伸以用于支撑所述夹板的支撑部，所述通孔设于所述第二侧板远离所述音圈的一侧，所述通槽设于所述环形本体之与相应所述通孔对位处。
作为一种改进，所述通孔沿所述音圈的振动方向贯穿所述第二侧板，所述通槽沿垂直所述振动方向贯穿所述环形本体。
作为一种改进，所述第一侧板上设有凸块，所述支撑部上对位设有与所述凸块形状相适配的凹槽。
作为一种改进，每一所述第二侧板上均间隔设有三个所述通孔。
作为一种改进，所述振动系统还包括固定在所述音圈远离所述振膜一侧的定心支片，所述定心支片一端与所述音圈连接、另一端与所述盆架固定，所述定心支片与所述边磁钢位于所述盆架的不同侧。
作为一种改进，所述磁碗包括固定所述主磁体部与所述边磁钢的主体部以及自所述主体部朝所述定心支片延伸的翻边，所述定心支片包括与所述翻边固定的柔性电路板以及夹设在所述柔性电路板与所述盆架之间的下音膜；所述下音膜包括与所述音圈固定的第一边缘部、与所述第一边缘部间隔设置的第二边缘部以及连接在所述第一边缘部与所述第二边缘部之间的折环部，所述第二边缘部与所述盆架固定，所述折环部为朝远离所述柔性电路板方向弯曲延伸的弧形结构。
作为一种改进，所述夹板与所述盆架注塑成型为一体，所述夹板上开设有注塑定位孔。
 有益效果
本发明的有益效果是：通过在扬声器上设置泄漏通道，泄漏通道的一端与空隙相通、另一端与扬声器的外侧连通，，因此振动系统向下振动时，空隙内的空气可以通过泄漏通道排出，使空气流通顺畅，避免产生杂音，从而提升了听感。
 附图说明
图1为本实用新型的扬声器的结构示意图；
图2为沿图的A-A线的剖视图；
图3为沿图1的B-B线的剖视图
图4为图1另一角度的示意图；
图5为本实用新型的扬声器的分解示意图；
图6为图5中所示夹板与盆架的装配示意图；
图7为图6中所示夹板的结构示意图；
图8为图6中所示盆架的结构示意图。
附图标记：100、扬声器；10、盆架；20、振动系统；30、磁路系统；21、振膜；22、音圈；23、定心支片；24、下音膜；25、柔性电路板；211、中间球顶；212、上音膜；31、磁碗；32、主磁体部；33、边磁体部；321、主磁钢；322、极芯；331、边磁钢；332、夹板；40、空隙；50、泄漏通道；3321、第一侧板；3322、第二侧板；3323、通孔；11、通槽；12、环形本体；13、柱脚；14、支撑部；3324、注塑定位孔；121、定位柱；3325、凸块；141、凹槽；241、第一边缘部；242、第二边缘部；243、折环部；311、主体部；312、翻边。
 本发明的实施方式
下面结合图1至图8对本实用新型作详细描述。
需要说明的是，本实用新型实施例中所有方向性指示（诸如上、下、左、右、前、后、内、外、顶部、底部……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
请参阅图1至图5，依照本实用新型实施例提供的一种扬声器100，包括盆架10、振动系统20及磁路系统30，盆架10用于支撑振动系统20和磁路系统30，磁路系统30用于驱动振动系统20振动发声，振动系统20的振动方向即为扬声器100的轴线方向。
振动系统20包括振膜21、音圈22以及定心支片23，定心支片23包括下音膜24和柔性电路板25，振动系统20通过振膜21与盆架10连接，振膜21包括中间球顶211和上音膜212，上音膜212相对的两侧分别与盆架10和中间球顶211连接，音圈22的一轴向端与上音膜212之靠近中间球顶211的一端连接，另一轴向端通过下音膜24与柔性电路板25连接，当通过柔性电路板25向音圈22通入交流电时，音圈22就会在磁路系统30磁场的作用下发生振动，并带动整个振动系统20振动，使振膜21推压空气从而产生声音。
磁路系统30包括固定于盆架10的磁碗31以及固定于磁碗31的主磁体部32和边磁体部33，主磁体部32与边磁体部33间隔设置形成磁间隙，主磁体部32包括主磁钢321和固定于主磁钢321之远离磁碗31一侧的极芯322，边磁体部33包括固定于磁碗31的边磁钢331和固定于盆架10的夹板332，夹板332与振膜21之间间隔形成与磁间隙相通的空隙40，扬声器100上设有自夹板332经盆架10延伸至盆架10外的泄漏通道50，泄漏通道50的一端与间隙40连通，另一端与扬声器100的外侧连通，下音膜24的一端沿扬声器100轴向连接于音圈22与柔性电路板25之间、另一端沿扬声器100轴向位于盆架10与柔性电路板25之间。优选地，夹板332及极芯322由导磁材料制成，用于配合主磁钢321和边磁钢331形成磁回路，以减小磁阻。
请参阅图5、图6、图7及图8，本实用新型中的夹板332呈环形，由分别对应于边磁钢331的两个间隔相对设置的第一侧板3321和两个连接于两第一侧板3321之间的第二侧板3322围合形成，两个第二侧板3322远离音圈22的一侧即外边缘上均贯穿设有与空隙40相通的通孔3323，盆架10上设有将通孔3323和扬声器100的外侧相通且数量与通孔3323数量一致的通槽11，即在夹板332与盆架10的结合处泄漏通道50，因此当振膜21往下振动挤压空气时，空隙40内的空气可以先通过通孔3323、再通过通槽11排出，使空气流通顺畅，避免产生杂音，从而提升听感；当振膜21向上振动时，外界的空气可以通过通槽11和通孔3323进入扬声器100内部，从而使扬声器100内部的压强与外界压强相同。具体地，在本实施例中，每个第二侧板3322上都间隔设有三个通孔3323。可以理解地，通孔3323的数量并不局限于三个，例如，一个、两个或者其它个数也是可以的。优选地，通孔3323沿扬声器100轴向设置，可以理解地，通孔3323也可以沿相对扬声器100的轴向倾斜设置。
请参阅图3、图5、图7与图8，盆架10包括环形本体12、设于环形本体12底部的柱脚13以及从环形本体12远离振膜21一端向音圈22方向延伸以用于支撑夹板332的支撑部14，盆架10与夹板332通过注塑的方式一体成型，夹板332上设有若干个注塑定位孔3324，环形本体12上对位设有定位柱121，通槽11设置在环形本体12上，夹板332的两个第一侧板3321上均设有凸块3325，支撑部14上对位设有形状与凸块3325形状相适配的凹槽141。可以理解地，盆架10与夹板332还可以分体组装成型。
请参阅图3与图5，下音膜24包括与音圈22固定的第一边缘部241、与第一边缘部间隔设置的第二边缘部242以及连接在第一边缘部241与第二边缘部242之间的折环部243，磁碗31包括固定主磁钢321与边磁钢331的主体部311以及自主体部311朝向柔性电路板25延伸的翻边312，第一边缘部241的两相对侧分别与音圈22和柔性电路板25的内端部固定连接，第二边缘部242的两相对侧分别与盆架10和柔性电路板25的外端部固定连接，且柔性电路板25外端部远离振膜的一侧与翻边312固定连接，折环部243为弧形结构并朝远离柔性电路板25方向弯曲延伸。
本实用新型的有益效果在于：通过在夹板332上设置与空隙40相通的通孔3323，盆架10上设置将通孔3323与扬声器100的外侧连通的通槽11，当振膜21往下振动时，空隙40内的空气可以通过通孔3323和通槽11排出，使空气流通顺畅；当振膜21往上振动时，外界的空气可以通过通槽11和通孔3323进入扬声器100的内部，使扬声器100内部的压强与外界压强相同，从而提升了扬声器100的品质。
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 (9)

  1. 一种扬声器，包括盆架以及安装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在所述盆架的振膜以及支撑在所述振膜一侧的音圈，所述振动系统包括固定在所述盆架远离所述振膜一侧的磁碗以及固定于所述磁碗的主磁体部与边磁体部，所述边磁体部位于所述主磁体部的相对两侧并与所述主磁体部间隔设置形成磁间隙，所述音圈远离所述振膜的一端悬置于所述磁间隙内，其特征在于，所述边磁体部包括固定于所述磁碗的边磁钢、以及叠设于所述边磁钢远离所述磁碗一侧的夹板，所述夹板与所述振膜之间间隔形成与所述磁间隙连通的空隙，所述扬声器还包括自所述夹板经所述盆架延伸至所述盆架外的泄露通道；所述泄露通道一端与所述空隙连通、另一端与所述扬声器的外侧连通。
  2. 根据权利要求1所述的扬声器，其特征在于，所述通道包括设于所述夹板上的通孔和设于所述盆架上的通槽，所述通孔与空隙相连通，所述通槽将所述通孔与所述扬声器的外侧连通。
  3. 根据权利要求2所述的扬声器，其特征在于，所述夹板包括分别对应于所述边磁钢的两个间隔相对设置的第一侧板和两个分别连接于两所述第一侧板两端之间的第二侧板，所述盆架包括环形本体和自所述环形本体远离所述振膜一端朝向所述音圈方向延伸以用于支撑所述夹板的支撑部，所述通孔设于所述第二侧板远离所述音圈的一侧，所述通槽设于所述环形本体之与相应所述通孔对位处。
  4. 根据权利要求3所述的扬声器，其特征在于，所述通孔沿所述音圈的振动方向贯穿所述第二侧板，所述通槽沿垂直所述振动方向贯穿所述环形本体。
  5. 根据权利要求3所述的扬声器，其特征在于，所述第一侧板上设有凸块，所述支撑部上对位设有与所述凸块形状相适配的凹槽。
  6. 根据权利要求3所述的扬声器，其特征在于，每一所述第二侧板上均间隔设有三个所述通孔。
  7. 根据权利要求3所述的扬声器，其特征在于，每一所述第二侧板上均间隔设有三个所述通孔。
  8. 根据权利要求7所述的扬声器，其特征在于，所述磁碗包括固定所述主磁体部与所述边磁钢的主体部以及自所述主体部朝所述定心支片延伸的翻边，所述定心支片包括与所述翻边固定的柔性电路板以及夹设在所述柔性电路板与所述盆架之间的下音膜；所述下音膜包括与所述音圈固定的第一边缘部、与所述第一边缘部间隔设置的第二边缘部以及连接在所述第一边缘部与所述第二边缘部之间的折环部，所述第二边缘部与所述盆架固定，所述折环部为朝远离所述柔性电路板方向弯曲延伸的弧形结构。
  9. 根据权利要求1所述的扬声器，其特征在于，所述夹板与所述盆架注塑成型为一体，所述夹板上开设有注塑定位孔。
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