WO2017215238A1 - 扬声器 - Google Patents

扬声器 Download PDF

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Publication number
WO2017215238A1
WO2017215238A1 PCT/CN2016/113025 CN2016113025W WO2017215238A1 WO 2017215238 A1 WO2017215238 A1 WO 2017215238A1 CN 2016113025 W CN2016113025 W CN 2016113025W WO 2017215238 A1 WO2017215238 A1 WO 2017215238A1
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WO
WIPO (PCT)
Prior art keywords
case
speaker
casing
diaphragm
speaker according
Prior art date
Application number
PCT/CN2016/113025
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English (en)
French (fr)
Inventor
张�成
张洪鹏
许超
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歌尔股份有限公司
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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2017215238A1 publication Critical patent/WO2017215238A1/zh

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the present invention relates to the field of acoustic technology, and more particularly to a speaker having a waterproof function of the outer casing.
  • the speaker plays an indispensable role in the sound system.
  • the speaker is one of the weakest devices in the sound system, and it is the most important component for the sound effect.
  • the speaker is applied to the terminal device.
  • the terminal device falls into the water or contacts the water in other forms, the water enters the space above the diaphragm of the speaker through the sound hole on the outer casing of the terminal device, that is, enters.
  • the space of the front cavity of the speaker if the seal between the diaphragm and the speaker casing is not tight, the water entering the front cavity will enter between the two into the inner cavity of the terminal device, which will result in the components of the terminal device. The circuit is damaged.
  • the lead avoidance groove is directly disposed on the outer casing under the diaphragm, and there is Hidden water leaks. Among them, when the front cavity of the product is filled with water, the diaphragm is easily emptied or washed away due to the floating portion of the diaphragm at the lead avoidance groove, resulting in waterproof failure of the product.
  • a speaker comprising an upper case and a lower case, a vibration system housed between the upper case and the lower case; wherein the vibration system includes a diaphragm and a film attached to the diaphragm a side voice coil; the speaker further includes a middle case fixed between the upper case and the lower case; the diaphragm is fixed between the upper case and the middle case, in the lower case A lead avoidance groove is provided thereon, and the lead wire of the voice coil is led out through the lead escape groove.
  • a preferred structure is that the lead escape grooves are provided in two, and two lead escape grooves are provided on the end faces of the side walls of the lower case which are in contact with the middle case.
  • a preferred structure is that four positioning bosses are disposed at a corner position of the lower case; the middle case is an annular structure, and the middle case is provided with a matching to the positioning boss gap.
  • a preferred structure is that a projection/recess is provided on an end surface of the middle case that is in contact with the upper case, and a recess is provided at a position opposite to the protrusion/recess on the upper case/ Raised.
  • the concave portion/protrusion provided on the end surface of the upper case is an annular structure.
  • the diaphragm includes a most peripheral fixing portion, a folded portion of a concave/convex structure integrally provided with the fixing portion, and a reinforcing portion located in the folded portion; the fixing The portion is adhesively fixed between the end faces of the upper case facing the middle case.
  • a preferred structure is that between the upper surface of the fixing portion and the bottom surface of the recess/projection of the upper case, between the lower surface of the fixing portion and the middle case, and the upper case The edge portion of the lower end surface and the middle shell are bonded and fixed by a glue layer.
  • a preferred structure further includes a magnetic circuit system housed in the upper case, the middle case, and the lower case; the magnetic circuit system includes a yoke fixedly coupled to the lower case, and fixed a center magnet at a center position of the yoke, a side magnet provided around the center magnet, and a center washer and a side shovel provided corresponding to the center magnet and the side magnet.
  • a preferred structure is that a crimping edge and a limiting recess are provided on the edge washer, and the crimping edge and the limiting recess are injection molded into the side wall of the lower casing.
  • a preferred structure is that a magnetic gap is formed between the edge washer and the side magnet and the center washer and the center magnet, and the voice coil is suspended in the magnetic gap.
  • a preferred structure is further comprising a spring piece molded on the lower case for connecting the internal and external circuits of the speaker; the spring piece is electrically connected to the lead of the voice coil.
  • a middle case adapted to the upper case and the lower case of the speaker is added, the diaphragm is fixed between the upper case and the middle case, and the lead avoidance groove is disposed on the lower case, and the lead wire is avoided by the middle case
  • the leaking water leakage of the tank can enhance the waterproof performance of the product and ensure the stable performance of the product. The rate is high.
  • the middle case is provided with a convex/concave portion
  • the upper case is provided with a concave portion/protrusion matching the convex/concave portion of the middle case
  • the fixing portion of the diaphragm is bonded and fixed to the convex portion of the middle case.
  • the edge portion of the lower end surface of the upper casing is fixed to the middle casing, so that there is no gap between the edge of the diaphragm and the upper casing and the middle casing, which can effectively avoid
  • the water in the front cavity enters the inside of the speaker and the terminal device, and the side walls of the upper and middle casings serve as a barrier to form a two-way barrier even if the upper surface of the fixed portion of the diaphragm and the concave/protrusion of the upper casing
  • the bottom surface is not tightly bonded, and the seal between the edge portion of the lower end surface of the upper case and the middle case can effectively prevent water from entering the inner cavity of the terminal device, thereby eliminating the need to increase the width of the edge portion of the diaphragm.
  • the waterproof performance can be well realized, the vibration area of the speaker is ensured, and the speaker of the present invention has high waterproof performance and high acoustic performance.
  • the speaker of the present invention solves the problem of the waterproof failure of the outer casing structure of the speaker in the prior art, and the speaker of the present invention has high reliability and long service life.
  • FIG. 1 is a first schematic diagram of an exploded structure of a speaker according to an embodiment of the present invention
  • FIG. 2 is a second schematic diagram of a speaker exploded structure according to an embodiment of the present invention.
  • Figure 3 is a side view of a speaker in accordance with an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a speaker in accordance with an embodiment of the present invention.
  • the reference numerals include: upper case 1, diaphragm 2, reinforcing portion 3, middle case 4, protrusion 41, avoidance notch 42, voice coil 5, voice coil lead 51, lower case 6, lead avoidance groove 61, The positioning boss 62, the center washer 7, the center magnet 8, the edge washer 9, the side magnet 10, and the yoke 11 are provided.
  • FIG. 1 and 2 respectively show a speaker exploded structure according to an embodiment of the present invention from different angles.
  • the speaker of the embodiment of the present invention includes a casing and a vibration system housed in the casing; wherein the casing includes an upper casing 1, a middle casing 4 and a lower casing 6 which are sequentially fixedly connected and fixed.
  • the vibration system includes a diaphragm 2 and a voice coil 5 attached to one side of the diaphragm 2, the outer edge of the diaphragm 2 is fixed between the upper casing 1 and the middle casing 4, and the lower casing 6 is provided with a lead avoidance groove 61.
  • the lead of the loop 5 (or the voice coil lead, the same below) is taken out through the corresponding lead escape slot 61.
  • the middle case 4 is a ring-shaped structure, and an end surface of the middle case 4 that is in contact with the upper case 1 is provided with a positioning structure that cooperates with the upper case 1 on the end face or the corner portion that is in contact with the lower case 6
  • the position is provided with a positioning structure that cooperates with the lower case 6.
  • FIGS. 3 and 4 respectively show a side view structure and a cross-sectional structure of a speaker according to an embodiment of the present invention.
  • the voice coil 5 includes a voice coil bobbin, a voice coil coil wound on the voice coil bobbin, and a voice coil lead 51 electrically connected to the voice coil coil, and a voice coil.
  • the lead wire 51 is taken out from the inside of the speaker and electrically connected to an external circuit, thereby achieving conduction between the internal and external circuits of the speaker.
  • the lead escape groove 61 for taking out the voice coil lead 51 is provided with two, and the two lead avoidance grooves 61 are disposed on the side wall end faces of the lower case 6 which are in contact with the middle case 4; the lead escape groove 61
  • the set position can be adjusted according to the lead-out position of the voice coil lead 51, that is, the lead avoidance groove can be disposed on the same side wall end surface of the lower case or the corresponding two side wall end faces.
  • four positioning bosses 62 may be disposed at four corner positions of the lower case 6, and four positions and positions are arranged at positions of the middle case 4 corresponding to the positioning boss 62.
  • the boss 62 matches the avoidance notch 42.
  • protrusions/recesses may be provided on the end faces of the middle case 4 which are in contact with the upper case 1 (the positioning structure is shown as a projection 41 in the drawing)
  • a recess/protrusion is provided, and the protrusion/recess on the middle case 4 is engaged with the recess/projection on the upper case 1, thereby facing the upper case 1 and The middle case 4 is positioned.
  • the recesses/protrusions provided on the end faces of the upper case 1 on the side close to the middle case 4 may be annular structures or a plurality of recessed/protruding structures spaced apart on the end faces of the upper case 1.
  • the manner of limiting and fixing between the middle shell and the upper shell and the middle shell and the lower shell is not limited to the cooperation of the positioning boss and the avoiding notch, the protrusion and the recess.
  • the middle shell and the upper shell and the lower shell can also adopt the same manner or other similar limiting pillars, the limiting recesses and the adhesive bonding and the like.
  • the diaphragm 2 further includes a fixing portion fixed to the middle case 4 and the upper case 1 (at the outermost periphery of the diaphragm), and a concave/convex structure folded ring integrally provided with the fixing portion And a flat portion disposed inside the folding ring portion (located at the innermost portion of the diaphragm), and the reinforcing portion 3 is disposed at a plane portion of the diaphragm 2, and is mainly used for adjusting the acoustic performance of the speaker, in order to reduce the overall quality of the vibration system,
  • the material is provided at the position of the diaphragm portion corresponding to the reinforcing portion 3, and the reinforcing portion 3 is covered at the stripping position.
  • the fixing portion is adhesively fixed between the two end faces of the upper case 1 and the middle case 4, and there is no gap between the diaphragm 2 and the upper case 1 and the middle case 4, which can effectively prevent the water in the front cavity from entering. Inside the speaker.
  • the speaker of the embodiment of the present invention further includes a magnetic circuit system housed in the upper case 1, the middle case 4, and the lower case 6; wherein the magnetic circuit system includes a magnetic yoke 11 fixedly coupled to the lower case 6, and fixed to The center magnet 8 at the center of the yoke 11 , the side magnet 10 disposed around the center magnet 8 , and the center washer 7 and the edge washer 9 provided corresponding to the center magnet 8 and the side magnet 10 .
  • the magnetic circuit system includes a yoke 11 for fixing the magnet and correcting the magnetic lines of force, and bonding
  • the center magnet 8 positioned at the center of the yoke 11 and the side magnet 10 disposed around the center magnet 8 are provided with a center washer 7 on the side of the center magnet 8 away from the yoke 11, and the side magnet 10 is remotely guided.
  • One side of the yoke 11 is provided with a side edge 9; wherein a gap existing between the center magnet 8 and the center washer 7 and the side magnet 10 and the edge huashi 9 is a magnetic gap, and the voice coil 5 is suspended in the magnetic gap Inside, when the voice coil 5 in the magnetic field has an audio current flowing, an alternating driving force is generated to generate an alternating motion, thereby causing the diaphragm to vibrate, and then repeatedly pushing the air to make a sound.
  • edge washer 9 two sides of the edge washer 9 are provided, and a crimping edge and a limiting recess are respectively disposed on each of the side washers 9, and the crimping edge and the limiting recess are injection-molded to the side of the lower shell 6
  • the edge washer 9 and the lower shell 6 can be wrapped in the horizontal direction and the vertical direction to avoid the peeling of the washer and the lower shell 6, which not only ensures a firm bond between the edge and the outer shell, but also It can enhance the strength and reliability of the casing itself.
  • the speaker of the embodiment of the present invention further includes a spring piece molded on the lower case 6 for connecting the internal and external circuits of the speaker, and the voice coil lead 51 is electrically connected from the lead escape groove 61 of the lower case 6 and electrically connected to the corresponding elastic piece. Further, the elastic piece is electrically connected to an external circuit.
  • the speaker provided by the present invention is provided with a middle case between the upper case and the lower case of the speaker, and the diaphragm is fixed between the middle case and the upper case, so that the lead avoidance groove on the lower case is When the diaphragm is isolated, the diaphragm is not easily washed away by water. At the same time, it can effectively prevent water from entering the speaker from the lead avoidance slot, which can improve the waterproof performance of the product, avoid the waterproof trouble caused by the lead avoidance groove, and improve the stability and qualified of the product. rate.

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

Abstract

本发明提供一种扬声器，包括适配连接的上壳和下壳、收容在上壳和下壳之间的振动系统；其中，振动系统包括振膜以及贴设在振膜一侧的音圈；该扬声器还包括固定在上壳和下壳之间的中壳；振膜固定在上壳与中壳之间，在下壳上设置有引线避让槽，音圈的引线通过引线避让槽引出。利用上述发明能够提高产品的防水性能及产品的良率。

Description

扬声器 技术领域
本发明涉及声学技术领域，更为具体地，涉及一种外壳具有防水功能的扬声器。
背景技术
扬声器作为将电能转变为声能的常用电声换能器件，其在声放系统中起着不可或缺的作用。扬声器在声放系统中是一个最薄弱的器件，而对于声放效果而言，它又是一个最重要的部件。扬声器的种类繁多，音频电能通过电磁，压电或静电效应，使其纸盆或振膜振动并与周围的空气产生共振而发出声音。因此，正是有了扬声器的出现，人们才得以听到美妙声音。
扬声器被应用于终端设备，当终端设备掉入水中或以其它形式接触到水时，水会经终端设备外壳上的声孔从扬声器的出声孔进入到扬声器的振膜上部的空间，即进入到扬声器的前腔的空间内，如果振膜与扬声器外壳之间密封不严，进入到前腔内的水会从二者之间进入到终端设备的内腔中，会导致终端设备的零部件电路损坏。
因此，为满足扬声器或终端设备的性能及可靠性的要求，越来越多的产品要求具有防水功能，而在现有的扬声器结构中，引线避让槽直接设置在振膜下方的外壳上，存在漏水隐患。其中，当产品前腔充水时，因引线避让槽处的振膜部分处于悬空状态，振膜很容易被水冲开或者冲掉，造成产品防水失效。
发明内容
鉴于上述问题，本发明的目的是提供一种扬声器，以解决目前扬声器的外壳结构存在防水失效隐患的问题。
根据本发明提供一种扬声器，包括上壳和下壳、收容在所述上壳和所述下壳之间的振动系统；其中，所述振动系统包括振膜以及贴设在所述振膜一 侧的音圈；所述扬声器还包括固定在所述上壳和所述下壳之间的中壳；所述振膜固定在所述上壳与所述中壳之间，在所述下壳上设置有引线避让槽，所述音圈的引线通过所述引线避让槽引出。
此外，优选的结构是，所述引线避让槽设置有两个，两个引线避让槽设置在所述下壳的与所述中壳相接触的侧壁端面上。
此外，优选的结构是，在所述下壳的角部位置设置有四个定位凸台；所述中壳为环形结构，在所述中壳上设置有与所述定位凸台相匹配的避让缺口。
此外，优选的结构是，在所述中壳的与所述上壳相接触的端面上设置有凸起/凹部，在所述上壳上与所述凸起/凹部相对的位置设置有凹部/凸起。
此外，优选的结构是，设置在所述上壳的端面上的所述凹部/凸起为环形结构。
此外，优选的结构是，所述振膜包括最外围的固定部、与所述固定部一体设置的凹/凸结构的折环部，以及位于所述折环部内的补强部；所述固定部粘结固定在所述上壳与所述中壳相向的两端面之间。
此外，优选的结构是，所述固定部的上表面与所述上壳的所述凹部/凸起的底面之间、所述固定部的下表面与所述中壳之间、所述上壳的下端面的边缘部与所述中壳之间均通过胶层粘结固定。
此外，优选的结构是，还包括收容在所述上壳、所述中壳和所述下壳内的磁路系统；所述磁路系统包括与所述下壳固定连接的导磁轭、固定在所述导磁轭的中心位置的中心磁铁、围绕所述中心磁铁设置的边磁铁、与所述中心磁铁和所述边磁铁对应设置的中心华司和边华司。
此外，优选的结构是，在所述边华司上设置有压边和限位凹部，所述压边和所述限位凹部注塑在所述下壳的侧壁内。
此外，优选的结构是，所述边华司和所述边磁铁与所述中心华司和所述中心磁铁之间形成磁间隙，所述音圈悬设在所述磁间隙内。
此外，优选的结构是，还包括注塑在所述下壳上用于连接所述扬声器的内外部电路的弹片；所述弹片与所述音圈的引线电连接。
利用上述根据本发明的扬声器，增设与扬声器上壳和下壳相适配的中壳，将振膜固定在上壳和中壳之间，引线避让槽设置在下壳上，通过中壳规避引线避让槽的漏水隐患，能够增强产品的防水性能，确保产品性能稳定，合格 率高。
此外，当终端设备外部的水从上壳的出声孔处进入到振膜上侧的空间时，在常规结构的扬声器中，当振膜的边缘的上表面与上壳之间粘结不严密时，水就会从振膜的边缘与上壳之间的缝隙处进入到终端设备的内部空间，有可能会造成终端设备内的电路短路。而在本发明的扬声器中，中壳设置有凸起/凹部，上壳设置有与中壳的凸起/凹部相匹配的凹部/凸起，振膜的固定部粘结固定在中壳的凸起/凹部与上壳的凹部/凸起之间，并且上壳的下端面的边缘部固定在中壳上，因此，振膜的边缘与上壳和中壳之间不存在缝隙，能够有效避免前腔内的水进入到扬声器及终端设备内部，并且上壳和中壳的侧壁起到了阻挡作用，形成了二道屏障，即便振膜的固定部的上表面与上壳的凹部/凸起的底面之间粘结不严密，通过上壳的下端面的边缘部与中壳之间的密封能够有效地防止水进入到终端设备的内腔中，从而不需要增加振膜的边缘部位的宽度就能够很好地实现防水的性能，保证了扬声器的振动面积，进而本发明的扬声器在具有较好的防水性能的同时还具有较高的声学性能。
因此，本发明的扬声器解决了现有技术中扬声器的外壳结构存在防水失效隐患的问题，同时本发明的扬声器可靠性高，使用寿命长。
为了实现上述以及相关目的，本发明的一个或多个方面包括后面将详细说明并在权利要求中特别指出的特征。下面的说明以及附图详细说明了本发明的某些示例性方面。然而，这些方面指示的仅仅是可使用本发明的原理的各种方式中的一些方式。此外，本发明旨在包括所有这些方面以及它们的等同物。
附图说明
通过参考以下结合附图的说明及权利要求书的内容，并且随着对本发明的更全面理解，本发明的其它目的及结果将更加明白及易于理解。在附图中：
图1为根据本发明实施例的扬声器分解结构示意图一；
图2为根据本发明实施例的扬声器分解结构示意图二；
图3为根据本发明实施例的扬声器侧视图；
图4为根据本发明实施例的扬声器剖面图。
其中的附图标记包括：上壳1、振膜2、补强部3、中壳4、凸起41、避让缺口42、音圈5、音圈引线51、下壳6、引线避让槽61、定位凸台62、中心华司7、中心磁铁8、边华司9、边磁铁10、导磁轭11。
在所有附图中相同的标号指示相似或相应的特征或功能。
具体实施方式
在下面的描述中，出于说明的目的，为了提供对一个或多个实施例的全面理解，阐述了许多具体细节。然而，很明显，也可以在没有这些具体细节的情况下实现这些实施例。在其它例子中，为了便于描述一个或多个实施例，公知的结构和设备以方框图的形式示出。
为详细描述本发明的扬声器结构，以下将结合附图对本发明的具体实施例进行详细描述。
图1和图2分别从不同角度示出了根据本发明实施例的扬声器分解结构。
如图1和图2共同所示，本发明实施例的扬声器，包括外壳、收容在外壳内的振动系统；其中，外壳包括依次适配连接固定的上壳1、中壳4和下壳6，振动系统包括振膜2以及贴设在振膜2一侧的音圈5，振膜2的外边缘固定在上壳1与中壳4之间，在下壳6上设置有引线避让槽61，音圈5的引线(或者音圈引线，下同)通过对应的引线避让槽61引出。
其中，中壳4为环形结构，在中壳4的与上壳1相贴合的端面上设置有与上壳1配合的定位结构，在其与下壳6相贴合的端面上或者角部位置设置有与下壳6相配合的定位结构。通过将引线避让槽61设置在下壳6的与中壳4相贴合的端面上，能够将振膜2与引线避让槽61进行隔离，在产品前腔充水时，能够通过振膜防水，避免引线避让槽漏水而造成产品防水失效。
具体地，图3和图4分别示出了根据本发明实施例的扬声器的侧视结构和剖面结构。
结合图1至图4共同所示，本发明实施例的扬声器，音圈5包括音圈骨架、缠绕在音圈骨架上的音圈线圈以及与音圈线圈电连接的音圈引线51，音圈引线51从扬声器内部引出后与外部电路电连接，从而实现扬声器内外部电路的导通。其中，用于引出音圈引线51的引线避让槽61设置有两个，两个引线避让槽61设置在下壳6的与中壳4相接触的侧壁端面上；引线避让槽61 的设置位置可以根据音圈引线51的引出位置进行调整，即引线避让槽可以设置在下壳的同一侧壁端面上或者相对应的两个侧壁端面上。
其中，在下壳6与中壳4的一个具体定位结构中，可以在下壳6的四个角部位置设置四个定位凸台62，在中壳4对应定位凸台62的位置设置四个与定位凸台62相匹配的避让缺口42，在中壳4与下壳6组装时，将中壳4嵌在下壳6的上端面，通过定位凸台62与避让缺口42的配合作用，对中壳4和下壳6进行定位。
此外，在上壳1与中壳4的一个具体定位结构中，可以在中壳4的与上壳1相接触的端面上设置凸起/凹部(附图中示出了定位结构为凸起41的情况)，在上壳1对应凸起/凹部的位置设置有凹部/凸起，通过中壳4上的凸起/凹部与上壳1上的凹部/凸起配合，从而对上壳1和中壳4进行定位。其中，设置在上壳1靠近中壳4一侧的端面上的凹部/凸起可以为环形结构，或者采用间隔设置在上壳1端面上的多个凹部/凸起结构。
需要说明的是，本发明实施例的扬声器中，中壳与上壳以及中壳与下壳之间的限位及固定方式，并不限于上述定位凸台和避让缺口、凸起和凹部的配合方式，中壳与上壳和下壳也可以采用同一种方式或者其他类似的限位柱、限位凹部配合胶粘等多种限位固定方式。
在本发明的一个具体实施方式中，振膜2进一步包括与中壳4和上壳1固定连接的固定部(位于振膜的最外围)、与固定部一体设置的凹/凸结构的折环部以及设置在折环部内部的平面部(位于振膜的最内部)，补强部3设置在振膜2的平面部，主要用于调节扬声器的声学性能，为降低振动系统的总体质量，通常在振膜平面部对应补强部3的位置设置去料，补强部3则覆盖在该去料位置。其中，固定部粘结固定在上壳1与中壳4相向的两个端面之间，振膜2与上壳1和中壳4之间不存在缝隙，能够有效避免前腔内的水进入到扬声器内部。
此外，本发明实施例的扬声器，还包括收容在上壳1、中壳4和下壳6内的磁路系统；其中，磁路系统包括与下壳6固定连接的导磁轭11、固定在导磁轭11中心位置的中心磁铁8、围绕中心磁铁8设置的边磁铁10、与中心磁铁8和边磁铁10对应设置的中心华司7和边华司9。
具体地，磁路系统包括用于固定磁铁并修正磁力线的导磁轭11，粘结固 定在导磁轭11中心位置的中心磁铁8以及围绕中心磁铁8设置的边磁铁10，在中心磁铁8远离导磁轭11的一侧贴设有中心华司7，在边磁铁10远离导磁轭11的一侧设置有边华司9；其中，中心磁铁8和中心华司7与边磁铁10和边华司9之间存在的间隙即为磁间隙，音圈5悬设在该磁间隙内，当处于磁场中的音圈5有音频电流流过时，会受到一个交变推动力产生交变运动，从而带动振膜振动，进而反复推动空气而发声。
在本发明的另一具体实施方式中，边华司9设置有两个，在各边华司9上分别设置有压边和限位凹部，压边和限位凹部注塑固定在下壳6的侧壁内，能够使边华司9与下壳6在水平方向和垂直方向上均有包紧力，避免华司与下壳6剥离，不仅能够确保边华司与外壳之间的牢固结合，还能够增强外壳自身的强度及可靠性。
此外，本发明实施例的扬声器，还包括注塑在下壳6上用于连接扬声器的内外部电路的弹片，音圈引线51从下壳6的引线避让槽61内引出后与对应的弹片电连接，进而通过弹片与外部电路电连接。
通过上述实施方式可以看出，本发明提供的扬声器，在扬声器上壳和下壳之间设置中壳，振膜固定在中壳和上壳之间，从而将位于下壳上的引线避让槽与振膜进行隔离，振膜不易被水冲开；同时，能够有效避免水从引线避让槽进入扬声器内部，能够提高产品的防水性能，规避引线避让槽造成的防水隐患，提高产品的稳定性及合格率。
如上参照附图以示例的方式描述根据本发明的扬声器。但是，本领域技术人员应当理解，对于上述本发明所提出的扬声器，还可以在不脱离本发明内容的基础上做出各种改进。因此，本发明的保护范围应当由所附的权利要求书的内容确定。

Claims (11)

  1. 一种扬声器，包括上壳和下壳、收容在所述上壳和所述下壳之间的振动系统，其中，所述振动系统包括振膜以及贴设在所述振膜一侧的音圈，其中，
    所述扬声器还包括固定在所述上壳和所述下壳之间的中壳；
    所述振膜固定在所述上壳与所述中壳之间，在所述下壳上设置有引线避让槽，所述音圈的引线通过所述引线避让槽引出。
  2. 如权利要求1所述的扬声器，其中，
    所述引线避让槽设置有两个，两个引线避让槽设置在所述下壳的与所述中壳相接触的侧壁端面上。
  3. 如权利要求1所述的扬声器，其中，
    在所述下壳的角部位置设置有四个定位凸台；
    所述中壳为环形结构，在所述中壳上设置有与所述定位凸台相匹配的避让缺口。
  4. 如权利要求1所述的扬声器，其中，
    在所述中壳的与所述上壳相接触的端面上设置有凸起或凹部，在所述上壳上与所述凸起或凹部相对的位置设置有凹部或凸起。
  5. 如权利要求4所述的扬声器，其中，
    设置在所述上壳的端面上的所述凹部或凸起为环形结构。
  6. 如权利要求1所述的扬声器，其中，
    所述振膜包括最外围的固定部、与所述固定部一体设置的凹结构或凸结构的折环部，以及位于所述折环部内的补强部；
    所述固定部粘结固定在所述上壳与所述中壳相向的两端面之间。
  7. 如权利要求6所述的扬声器，其中，
    所述固定部的上表面与所述上壳的所述凹部或凸起的底面之间、所述固定部的下表面与所述中壳之间、所述上壳的下端面的边缘部与所述中壳之间均通过胶层粘结固定。
  8. 如权利要求1所述的扬声器，还包括收容在所述上壳、所述中壳和所述下壳内的磁路系统，其中，
    所述磁路系统包括与所述下壳固定连接的导磁轭、固定在所述导磁轭的中心位置的中心磁铁、围绕所述中心磁铁设置的边磁铁、与所述中心磁铁和所述边磁铁对应设置的中心华司和边华司。
  9. 如权利要求8所述的扬声器，其中，
    在所述边华司上设置有压边和限位凹部，所述压边和所述限位凹部注塑在所述下壳的侧壁内。
  10. 如权利要求8所述的扬声器，其中，
    所述边华司和所述边磁铁与所述中心华司和所述中心磁铁之间形成磁间隙，所述音圈悬设在所述磁间隙内。
  11. 如权利要求1所述的扬声器，还包括注塑在所述下壳上用于连接所述扬声器的内外部电路的弹片，其中，
    所述弹片与所述音圈的引线电连接。
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