WO2016078413A1 - 扬声器模组 - Google Patents

扬声器模组 Download PDF

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Publication number
WO2016078413A1
WO2016078413A1 PCT/CN2015/082938 CN2015082938W WO2016078413A1 WO 2016078413 A1 WO2016078413 A1 WO 2016078413A1 CN 2015082938 W CN2015082938 W CN 2015082938W WO 2016078413 A1 WO2016078413 A1 WO 2016078413A1
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WO
WIPO (PCT)
Prior art keywords
positioning
casing
module
speaker
unit body
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/CN2015/082938
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English (en)
French (fr)
Inventor
万领
石华
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.)
Goertek Inc
Original Assignee
Goertek Inc
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 Goertek Inc filed Critical Goertek Inc
Priority to KR1020177001291A priority Critical patent/KR20170019436A/ko
Priority to US15/327,651 priority patent/US10321236B2/en
Publication of WO2016078413A1 publication Critical patent/WO2016078413A1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • 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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • 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
    • 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the invention relates to the technical field of electroacoustic products, and in particular to a speaker module.
  • the speaker module is an important acoustic component in portable electronic devices for converting electrical signals and sound signals. It is an energy conversion device.
  • the speaker module usually includes a module housing.
  • the module housing houses a speaker unit, and the speaker unit needs a positioning structure to be fixed in the module cavity.
  • the existing speaker module usually ensures the positioning of the speaker unit in the inner cavity of the module through the squeezing of the retaining wall and the upper and lower shells of the module, but with the continuous orientation of the portable electronic device.
  • the speaker module must also become thinner and smaller, so that the space inside the speaker module is getting smaller and smaller, in this smaller and smaller module cavity If the retaining wall is still used for positioning, the retaining wall will occupy a large part of the module cavity space, which will result in a decrease in the acoustic cavity of the module, resulting in a decrease in the acoustic performance of the speaker module.
  • the technical problem to be solved by the present invention is to provide a speaker module, which ensures the effective positioning of the speaker unit while maximally saving the internal space of the module and improving the acoustic performance of the speaker module.
  • the technical solution of the present invention is:
  • a speaker module includes a module housing, wherein the module housing houses a speaker unit, and the speaker unit includes a unitary front cover and a single housing combined together, the single front cover and the housing
  • a vibration system and a magnetic circuit system are accommodated in a space surrounded by the outer casing, and a plurality of positioning columns are disposed outside the side wall of the single casing, and each of the positioning pillars protrudes from a side of the single casing a wall surface extending along an upper end of the unitary casing from an upper end of the unit casing to a lower end of the unit casing;
  • the module housing is respectively positioned corresponding to each of the positioning posts And a positioning hole corresponding to each of the positioning posts is vertically disposed on each of the positioning bosses.
  • each of the positioning posts is provided with ultrasonic wires, and each of the positioning posts and the module casing are combined by an ultrasonic welding process.
  • the positioning post is integral with the single housing.
  • the speaker unit has a rectangular structure, and each of the four side walls of the single housing is provided with one positioning post.
  • each of the positioning posts is disposed at an intermediate position of a sidewall of the corresponding single casing.
  • the module housing comprises an upper shell and a lower shell joined together, and each of the positioning bosses is disposed inside the lower shell.
  • the lower shell is a box-shaped structure with an open upper end, and each of the positioning bosses is disposed at an inner bottom of the lower shell.
  • the positioning post is ultrasonically welded to the inner bottom of the lower case.
  • the positioning post and the positioning hole have a circular cross section.
  • the speaker module of the present invention comprises a module casing
  • the module casing houses a speaker unit, and a plurality of positioning columns are arranged outside the side wall of the single casing of the speaker unit, and the positioning shell is arranged on the module casing, and the positioning is provided.
  • the boss has a positioning hole adapted to the positioning post.
  • the positioning unit and the positioning hole cooperate with each other to fix the speaker unit in the cavity of the module.
  • the positioning structure of the positioning column and the positioning hole is small in size, occupying a small space, and the speaker is realized.
  • the positioning of the single X and Y directions ie, horizontal direction) maximizes the space of the cavity of the module and improves the acoustic performance of the module.
  • the positioning post and the module housing are combined by an ultrasonic welding process.
  • This combination method increases the positioning effect and enhances the firmness of the joint between the speaker unit and the module casing.
  • the ultrasonic welding process is cleaner and easier to operate than other glue bonding and hot melt bonding, and is simplified. The assembly process of the module.
  • the speaker module of the present invention solves the technical problem that the speaker single positioning structure occupies a large space in the prior art.
  • the single positioning structure of the speaker module of the present invention is small, takes up small space, and has high acoustic performance of the module. And the module assembly process is simple and easy to operate.
  • FIG. 1 is a perspective exploded structural view of a speaker module of the present invention
  • Figure 2 is a combination view of Figure 1;
  • Figure 3 is an enlarged cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is a plan view showing the planar structure of the lower case of Figure 1;
  • Figure 5 is a schematic structural view of the speaker unit of Figure 1;
  • the orientations referred to in this specification refer to the direction of the vibration system of the speaker unit, and the orientation refers to the direction of the magnetic circuit system of the speaker unit.
  • the inner side of the module housing referred to in this specification refers to one side of the module inner cavity, and the outer side refers to one side of the module outer cavity.
  • the inside of the unit casing referred to in the present specification refers to one side of the unit inner cavity, and the outer side refers to the side outside the unit inner cavity.
  • a speaker module is a rectangular structure including a module casing, and the module casing includes an upper casing 10 and a lower casing 20 which are joined together, and the upper casing 10 and the lower casing 20 are enclosed.
  • the speaker unit 30 is housed in the space.
  • An annular foam 40a is disposed between the speaker unit 30 and the upper casing 10.
  • the foam 40a functions as a sound chamber and a rear sound chamber before sealing, and the sound emitting surface of the foam 40a and the speaker unit 30 and the upper shell 10
  • the space between the two is the front acoustic cavity of the module, and the other space enclosed by the upper casing 10 and the lower casing 20 is the rear acoustic cavity of the module.
  • the sound hole 12 is provided at a position corresponding to the front sound chamber of the upper casing 10, and the sound emitted by the speaker unit 30 is radiated from the sound hole 12 to the outside of the module.
  • a foam 40b is disposed between the speaker unit 30 and the lower case 20.
  • the speaker unit 30 is also a rectangular structure including a unitary front cover 32 and a unit outer casing 34, a single front cover 32 and a single unit.
  • a vibration system and a magnetic circuit system are housed in a space enclosed by the outer casing 34.
  • Four positioning posts 340 are disposed on the outer side of the side wall of the unit casing 34, and four positioning posts 340 are respectively disposed at intermediate positions of the four side walls of the unit casing 34.
  • the four positioning posts 340 are all cylindrical structures protruding from the side wall surface of the unitary outer casing 34, and the four positioning posts 340 are each extended vertically from the upper end of the unitary outer casing 34 to the single outer casing along the side wall of the unitary outer casing 34.
  • the upper half of the positioning post 340 is integrally formed with the unit outer casing 34, and the lower end surface of the positioning post 340 is provided with a tapered ultrasonic line 342.
  • the lower casing 20 is a box-like structure with an open upper end, and four positioning bosses 22 respectively corresponding to the four positioning posts 340 are disposed at the bottom of the lower casing 20, and the positioning boss 22 includes a flat arch-shaped pedestal 220.
  • the straight side of the pedestal 220 is disposed adjacent to the speaker unit 30, and its arc side is disposed away from the speaker unit 30.
  • a cylindrical positioning hole 222 is vertically disposed on the pedestal 220 corresponding to the positioning post 340.
  • the pedestal 220 is provided with an opening corresponding to the position where the positioning post 340 is connected to the single housing 34, and the opening vertically penetrates the pedestal 220.
  • the positioning structure combined with the positioning boss and the positioning boss is small in size and small in space, and realizes the single positioning of the speaker while maximally saving the acoustic cavity space of the module and improving the acoustics of the module. performance.
  • the vibration system of the speaker unit includes a diaphragm 360 whose edge portion is fixed between the unit front cover 32 and the unit casing 34, and a central portion of the diaphragm 360 is fixed to the unit front cover 32.
  • the dome 362 has a voice coil 364 fixed to the side of the diaphragm 360 near the magnetic circuit system.
  • the magnetic circuit system includes a magnetic conductive plate 380 fixed on the outer casing 34.
  • the inner magnet 382 and the inner washer 384 are fixed in the middle of the inner side of the magnetic conductive plate 380.
  • the outer edge of the inner side of the magnetic conductive plate 380 is fixed with an outer magnet.
  • the 386 and the Outer Division 388, the outer magnet 386 and the outer washer 388 are wrapped around the outer circumference of the inner magnet 382 and the inner washer 384.
  • the inner magnet 382 and the inner washer 384 constitute an inner magnetic circuit of the speaker unit
  • the outer magnet 386 and the outer washer 388 constitute an outer magnetic circuit of the speaker unit
  • a magnetic gap is provided between the inner magnetic circuit and the outer magnetic circuit
  • the voice coil The end of 364 is located within the magnetic gap.
  • the voice coil 364 vibrates up and down in the magnetic gap according to the magnitude and direction of the acoustic signal of the acoustic wave in the winding.
  • the diaphragm 360 vibrates with the up and down movement of the voice coil 364, and the air is sounded, thereby completing the electroacoustic relationship. Energy conversion.
  • the unit outer casing 34 is an annular structure with open ends.
  • the magnetic conductive plate 380 is fixed at the open end of the lower end of the single outer casing 34, and the outer surface of the magnetic conductive plate 380 is single.
  • the lower end surface of the body casing 34 is flush, which effectively reduces the thickness of the speaker unit, thereby effectively reducing the thickness of the speaker module.
  • the positioning post 340 is designed as a cylindrical structure in this embodiment because the positioning column of the cylindrical structure is convenient to process and takes up a small space, which is a preferred solution of the present invention, but the structure of the positioning post is not Limited to cylindrical structures, such as triangular columns, square columns and other polygonal columns can achieve the positioning function.
  • each of the four sides of the speaker unit of the embodiment is provided with a positioning post 340, which can well realize the positioning of the speaker unit in the X and Y directions in the module, and one positioning column on each of the four sides.
  • the solution is selected by the technician according to the structure and positioning requirements of the speaker unit and the speaker module.
  • the number and position of the positioning column in practical application are not limited to the above solution, and the technician can according to the speaker unit and the speaker.
  • the structure of the module, as well as the positioning requirements, are transformed.
  • the speaker unit and the module of the rectangular structure are taken as an example to describe the solution of the present invention in detail.
  • the present invention sets the position column on the single casing and the positioning column on the module casing.
  • the technical solution of the adaptive positioning structure for saving the space of the module sound cavity is not limited to the module of the structure.
  • the technical solution is applicable to any module with a single casing, and those skilled in the art according to the present invention
  • the description of the specification can apply the technical solution of the present invention to modules of other structures without any creative labor, including modules of circular, racetrack shape and other irregular shapes, so regardless of the module and the single module.

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

Abstract

一种扬声器模组，包括模组外壳，所述模组外壳内收容有扬声器单体(30)，所述扬声器单体(30)包括结合在一起的单体前盖(32)和单体外壳(34)，所述单体前盖(32)与所述单体外壳(34)围成的空间内收容有振动系统和磁路系统，所述单体外壳(34)的侧壁外侧设有多个定位柱(340)，各所述定位柱(340)均凸出于所述单体外壳(34)的侧壁表面，且沿着所述单体外壳(34)的侧壁由所述单体外壳(34)的上端延伸至所述单体外壳(34)的下端；所述模组外壳上对应各所述定位柱(340)的位置分别设有定位凸台(22)，各所述定位凸台(22)上分别垂直设有与各所述定位柱(340)相适配的定位孔(222)。该扬声器模组中的单体定位结构小巧，占用空间小，模组声学性能高，且模组组装工艺简单易操作。

Description

扬声器模组 技术领域
本发明涉及电声产品技术领域，特别涉及一种扬声器模组。
发明背景
扬声器模组是便携式电子设备中一种重要的声学部件，用于完成电信号与声音信号之间的转换，是一种能量转换器件。扬声器模组通常包括模组外壳，模组外壳内收容有扬声器单体，扬声器单体需要定位结构固定在模组内腔中。现有的扬声器模组通常是通过设置在模组外壳上的挡墙及模组上下壳的挤压来保证扬声器单体在模组内腔中的定位，然而随着便携式电子设备在不断的向轻薄、小巧的方向发展，导致扬声器模组也必须要变得越来越薄、越来越小，这样扬声器模组内部的空间就越来越小，在这越来越小的模组内腔中若仍然采用挡墙来定位，挡墙就会占用很大一部分的模组内腔空间，从而导致模组的声腔减小，导致扬声器模组的声学性能下降。
发明内容
针对以上缺陷，本发明所要解决的技术问题是提供一种扬声器模组，此扬声器模组在保证了扬声器单体有效定位的同时最大限度的节约模组内部空间，提高扬声器模组的声学性能。
为解决上述技术问题，本发明的技术方案是：
一种扬声器模组，包括模组外壳，所述模组外壳内收容有扬声器单体，所述扬声器单体包括结合在一起的单体前盖和单体外壳，所述单体前盖与所述单体外壳围成的空间内收容有振动系统和磁路系统，所述单体外壳的侧壁外侧设有多个定位柱，各所述定位柱均凸出于所述单体外壳的侧壁表面，且沿着所述单体外壳的侧壁由所述单体外壳的上端延伸至所述单体外壳的下端；所述模组外壳上对应各所述定位柱的位置分别设有定位凸台，各所述定位凸台上分别垂直设有与各所述定位柱相适配的定位孔。
其中，各所述定位柱的下端面上均设有超声线，各所述定位柱与所述模组外壳通过超声焊接工艺结合。
其中，所述定位柱与所述单体外壳为一体结构。
其中，所述扬声器单体为矩形结构，所述单体外壳的四个侧壁上各设有一个所述定位柱。
其中，各所述定位柱均设置在相应的所述单体外壳侧壁的中间位置。
其中，所述模组外壳包括结合在一起的上壳和下壳，各所述定位凸台设置在所述下壳的内侧。
其中，所述下壳为上端敞口的盒状结构，各所述定位凸台均设置在所述下壳的内侧底部。
其中，所述定位柱与所述下壳的内侧底部超声焊接结合。
其中，所述定位柱和所述定位孔的横截面均为圆形结构。
采用了上述技术方案后，本发明的有益效果是：
由于本发明扬声器模组包括模组外壳，模组外壳内收容有扬声器单体，扬声器单体的单体外壳的侧壁外侧设有多个定位柱，模组外壳上设有定位凸台，定位凸台上设有与定位柱相适配的定位孔。通过定位柱与定位孔相互配合将扬声器单体固定在模组内腔中，与现有技术的挡墙相比，定位柱与定位孔配合的定位结构体积小巧，占用空间小，在实现了扬声器单体X、Y方向（即水平方向）定位的同时最大限度的节约了模组的声腔空间，提高了模组的声学性能。
由于定位柱的下端面上设有超声线，定位柱与模组外壳通过超声焊接工艺结合。此种结合方式增加了定位效果，增强了扬声器单体与模组外壳之间结合的牢固度，同时超声焊接工艺与其它的涂胶粘接、热熔结合等方式相比更加清洁易操作，简化了模组的组装工艺。
综上所述，本发明扬声器模组解决了现有技术中扬声器单体定位结构占用空间大的技术问题，本发明扬声器模组中的单体定位结构小巧，占用空间小，模组声学性能高，且模组组装工艺简单易操作。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其它目的、特征和优点能够更明显易懂，以下特举本发明的具体实施方式。
附图简要说明
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。在附图中：
图1是本发明扬声器模组的立体分解结构示意图；
图2是图1的组合图；
图3是图2的A-A线剖视放大图；
图4是图1中下壳的平面结构示意图；
图5是图1中扬声器单体的结构示意图；
图中：10、上壳，12、出声孔，20、下壳，22、定位凸台，220、台座，222、定位孔，30、扬声器单体，32、单体前盖，34、单体外壳，340、定位柱，342、超声线，360、振膜，362、球顶，364、音圈，380，导磁板，382、内磁铁，384、内华司，386、外磁铁，388、外华司，40a、泡棉，40b，泡棉。
具体实施方式
下面结合附图和实施例，进一步阐述本发明。
本说明书中涉及到的方位上均指扬声器单体的振动系统的方向，方位下均指扬声器单体的磁路系统的方向。本说明书中涉及到的模组外壳的内侧均指其位于模组内腔中的一侧，外侧均指其位于模组内腔外的一侧。本说明书中涉及到的单体外壳的内侧均指其位于单体内腔中的一侧，外侧均指其位于单体内腔外的一侧。
如图1和图2共同所示，一种扬声器模组，为矩形结构，包括模组外壳，模组外壳包括结合在一起的上壳10和下壳20，上壳10和下壳20围成的空间内收容有扬声器单体30。扬声器单体30与上壳10之间设有环状的泡棉40a，泡棉40a起到密封前声腔与后声腔的作用，泡棉40a与扬声器单体30的出声面及上壳10之间的空间为模组的前声腔，上壳10和下壳20围成的其它空间均为模组的后声腔。上壳10上对应前声腔的位置设有出声孔12，扬声器单体30发出的声音由出声孔12处向模组外部辐射。扬声器单体30与下壳20之间设有泡棉40b。
如图1、图3、图4和图5共同所示，扬声器单体30也为矩形结构，其包括结合在一起的单体前盖32和单体外壳34，单体前盖32和单体外壳34围成的空间内收容有振动系统和磁路系统。单体外壳34的侧壁外侧设有四个定位柱340，四个定位柱340分别设置在单体外壳34的四个侧壁的中间位置。四个定位柱340均为凸出单体外壳34的侧壁表面的圆柱结构，且四个定位柱340均沿着单体外壳34的侧壁由单体外壳34的上端垂直延伸至单体外壳34的下端，定位柱340的上半部分与单体外壳34为一体结构，定位柱340的下端面上均设有锥形的超声线342。下壳20为上端敞口的盒状结构，在下壳20的底部设有四个分别与四个定位柱340相适配的定位凸台22，定位凸台22包括一平放的拱桥状的台座220，台座220的直边靠近扬声器单体30设置，其圆弧边远离扬声器单体30设置。台座220上对应定位柱340的位置垂直设有圆筒形的定位孔222，台座220对应定位柱340与单体外壳34连接的位置设有开口，开口垂直贯穿台座220。在扬声器模组组装时，将四个定位柱340分别插入到四个定位孔222中，然后通过超声焊接工艺将定位柱340与下壳20的底部结合为一体，即将扬声器单体30固定在了下壳20上，此定位柱与定位凸台相结合的定位结构体积小巧，占用空间小，在实现了扬声器单体定位的同时最大限度的节约了模组的声腔空间，提高了模组的声学性能。
如图3所示，扬声器单体的振动系统包括边缘部固定在单体前盖32与单体外壳34之间的振膜360，振膜360的中部固定有向单体前盖32凸起的球顶362，振膜360靠近磁路系统的一侧固定有音圈364。磁路系统包括固定在单体外壳34上的导磁板380，导磁板380内侧的中间位置依次固定有内磁铁382和内华司384，导磁板380内侧的边缘位置依次固定有外磁铁386和外华司388，外磁铁386和外华司388环绕在内磁铁382和内华司384的外周。内磁铁382和内华司384构成扬声器单体的内磁路，外磁铁386和外华司388构成扬声器单体的外磁路，内磁路和外磁路之间设有磁间隙，音圈364的端部位于磁间隙内。音圈364根据通过其绕线内声波电信号的大小和方向在磁间隙内做往复的上下运动，振膜360随着音圈364的上下运动而振动，策动空气发声，从而完成电声之间的能量转换。
如图3和图5共同所示，单体外壳34为两端敞口的环状结构，导磁板380固定在单体外壳34下端的敞口处，且导磁板380的外表面与单体外壳34的下端面齐平，有效的降低了扬声器单体的厚度，从而有效降低了扬声器模组的厚度。
如图4和图5共同所示，本实施例中将定位柱340设计为圆柱结构是因为圆柱结构的定位柱加工方便，占用空间小，为本发明的优选方案，但定位柱的结构并不限于圆柱结构，如三角柱、方柱及其它多边形柱都可以实现定位的功能。
如图5所示，本实施例扬声器单体的四侧各设有一个定位柱340，可以很好的实现扬声器单体在模组中的X和Y方向的定位，四侧各设一个定位柱的方案是技术人员根据扬声器单体和扬声器模组的结构及定位要求所选的优选方案，实际应用中定位柱的数量和所处位置并不限于上述方案，技术人员可以根据扬声器单体和扬声器模组的结构，以及定位要求进行变换。
本实施例仅是以矩形结构的扬声器单体和模组为例对本发明的方案做了详细的说明，但本发明在单体外壳上设定位柱、在模组外壳上设与定位柱相适配的定位结构用来节约模组声腔空间的技术方案并不限于此种结构的模组中，该技术方案适用于任何一种单体设有外壳的模组中，本领域技术人员根据本说明书的描述不需要付出任何创造性劳动就可以将本发明的技术方案应用到其它结构的模组中，包括圆形、跑道形和其它不规则形状等结构的模组，故无论模组和单体的其它结构是否与上述实施例中描述的一样，只要是在单体外壳上设定位柱、在模组外壳上设与定位柱相适配的定位结构，且用来节约模组声腔空间、提升模组声学性能的扬声器产品均落入本发明的保护范围内。
本发明不局限于上述具体的实施方式，本领域的普通技术人员从上述构思出发，不经过创造性的劳动，所做出的种种变换，均落在本发明的保护范围之内。

Claims (9)

  1. 一种扬声器模组，包括模组外壳，所述模组外壳内收容有扬声器单体，所述扬声器单体包括结合在一起的单体前盖和单体外壳，所述单体前盖与所述单体外壳围成的空间内收容有振动系统和磁路系统，其特征在于，所述单体外壳的侧壁外侧设有多个定位柱，各所述定位柱均凸出于所述单体外壳的侧壁表面，且沿着所述单体外壳的侧壁由所述单体外壳的上端延伸至所述单体外壳的下端；所述模组外壳上对应各所述定位柱的位置分别设有定位凸台，各所述定位凸台上分别垂直设有与各所述定位柱相适配的定位孔。
  2. 根据权利要求1所述的扬声器模组，其特征在于，各所述定位柱的下端面上均设有超声线，各所述定位柱与所述模组外壳通过超声焊接工艺结合。
  3. 根据权利要求2所述的扬声器模组，其特征在于，所述定位柱与所述单体外壳为一体结构。
  4. 根据权利要求3所述的扬声器模组，其特征在于，所述扬声器单体为矩形结构，所述单体外壳的四个侧壁上各设有一个所述定位柱。
  5. 根据权利要求4所述的扬声器模组，其特征在于，各所述定位柱均设置在相应的所述单体外壳侧壁的中间位置。
  6. 根据权利要求1至5任一权利要求所述的扬声器模组，其特征在于，所述模组外壳包括结合在一起的上壳和下壳，各所述定位凸台设置在所述下壳的内侧。
  7. 根据权利要求6所述的扬声器模组，其特征在于，所述下壳为上端敞口的盒状结构，各所述定位凸台均设置在所述下壳的内侧底部。
  8. 根据权利要求7所述的扬声器模组，其特征在于，所述定位柱与所述下壳的内侧底部超声焊接结合。
  9. 根据权利要求8所述的扬声器模组，其特征在于，所述定位柱和所述定位孔的横截面均为圆形结构。
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