WO2020119238A1 - 扬声器 - Google Patents

扬声器 Download PDF

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Publication number
WO2020119238A1
WO2020119238A1 PCT/CN2019/111091 CN2019111091W WO2020119238A1 WO 2020119238 A1 WO2020119238 A1 WO 2020119238A1 CN 2019111091 W CN2019111091 W CN 2019111091W WO 2020119238 A1 WO2020119238 A1 WO 2020119238A1
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WO
WIPO (PCT)
Prior art keywords
connecting wall
wall
front cover
fixing portion
diaphragm
Prior art date
Application number
PCT/CN2019/111091
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English (en)
French (fr)
Inventor
章统
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
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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
Publication of WO2020119238A1 publication Critical patent/WO2020119238A1/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
    • H04R15/00—Magnetostrictive transducers
    • 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
    • H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers
    • 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
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements 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
    • 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
    • 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 the field of electroacoustic conversion, in particular to a speaker.
  • the existing speakers include a housing, a vibration system, and a magnetic circuit system.
  • the magnetic circuit system includes a magnetic bowl and a magnetic steel contained in the magnetic bowl.
  • the magnetic steel is contained in the magnetic bowl body and forms a magnetic gap with the magnetic bowl;
  • the vibration system includes a diaphragm and a voice coil, and one end of the voice coil is provided in the magnetic gap. The other end is fixed to the diaphragm, and the diaphragm is fixed to the housing so that the voice coil is suspended in the magnetic gap.
  • the housing includes a front cover and a basin frame, the diaphragm is sandwiched between the front cover and the basin frame, the front cover and the diaphragm, and the basin frame and the diaphragm are fixed by glue, and the glued surface is generally flat. If the width of the glued surface of the front cover, basin stand, and sound membrane is too small, the bonding strength between the three will be reduced, which will affect the waterproof performance of the product. If the width of the glued surface is too wide, the effective radiation area of the speaker vibration system will be reduced. Small, low sensitivity.
  • the utility model aims to solve the above-mentioned technical problems, and provides a new speaker with good waterproof performance and high sensitivity.
  • the present invention provides a loudspeaker, which includes a housing with a housing space, a magnetic circuit system and a vibration system housed in the housing space, the vibration system includes a diaphragm fixed to the housing and A voice coil connected to the diaphragm, the housing includes a front cover and a basin frame that cooperates with the front cover to form the receiving space, the diaphragm includes a ball top at a middle position, and a fold around the ball top A ring portion and a fixing portion surrounding the folded ring portion, the basin frame includes a first connection wall close to the voice coil and a second connection wall extending obliquely from the first connection wall away from the receiving space,
  • the front cover includes a third connection wall that is fixedly fitted with the first connection wall and a fourth connection wall that is fixedly fitted with the second connection wall, and the fixing portion includes an interlayer fixed to the first connection wall A first fixing portion between the third connecting wall and a second fixing portion sandwiched and fixed between the second connecting wall and the fourth
  • the second connecting wall extends obliquely from the first connecting wall away from the receiving space and away from the front cover.
  • the basin frame further includes a fifth connection wall extending from the second connection wall away from the receiving space
  • the front cover further includes a sixth connection wall that is fixedly fitted with the fifth connection wall
  • the fixing part further includes a third fixing part sandwiched and fixed between the fifth connection wall and the sixth connection wall.
  • the fifth connecting wall extends horizontally from an edge of the second connecting wall away from the receiving space.
  • the fixing portion further includes a connecting portion connecting the first fixing portion and the folding ring portion.
  • the front cover and basin frame of the speaker provided by the utility model are provided with a slope structure for fixing the diaphragm, which effectively increases the bonding area between the front cover, the basin frame and the diaphragm, and increases the adhesion
  • the connection strength improves the waterproof performance of the product
  • the structure sets the width of the contact surface of the front cover, the basin frame and the diaphragm to be narrower, increases the effective radiation area of the speaker vibration system, improves the vibration sensitivity, and improves the vibration of the speaker performance.
  • Figure 1 is a perspective view of the speaker of the present invention
  • Figure 2 is an exploded view of the speaker of the present invention
  • FIG. 3 is a cross-sectional view taken along line A-A in FIG. 1;
  • FIG. 4 is an enlarged view of B in the cross-sectional view of FIG. 3;
  • FIG. 5 is a partially exploded view of the cross-sectional view of FIG. 3;
  • FIG. 6 is an enlarged view of C in the exploded view of FIG. 5;
  • FIG. 8 is an enlarged view of E in the exploded view of FIG. 5.
  • the speaker 100 of the present invention includes a housing 1 with a storage space 200, a magnetic circuit system 2 and a vibration system 3 stored in the storage space 200.
  • the housing 1 includes a front cover 11 and a basin frame 12 that cooperates with the front cover 11 to form a storage space 200.
  • the basin frame 12 includes a first connecting wall 121 close to the receiving space 200 and a second connecting wall 122 extending obliquely from the first connecting wall 121 away from the receiving space 200.
  • the front cover 11 includes a third fixedly fitted with the first connecting wall 121
  • the connection wall 111 and the fourth connection wall 112 fixedly fitted with the second connection wall 122; in this embodiment, the second connection wall 122 extends obliquely from the first connection wall 121 away from the receiving space 200 and away from the front cover 11
  • the second connecting wall 122 may also extend obliquely from the first connecting wall 121 away from the receiving space 200 and closer to the front cover 11.
  • the magnetic circuit system 2 includes a magnetic bowl 21 fixed to the housing 1, a magnetic steel 22 accommodated in the magnetic bowl 21, and a pole core 23 disposed above the magnetic steel 22.
  • the magnetic bowl 21 is fixed to the basin frame 12;
  • the magnetic steel 22 includes a main magnet 221 and auxiliary magnets 222 disposed on both sides of the main magnet 221.
  • the vibration system 3 includes a diaphragm 31 fixed to the housing 1, a voice coil 32 that drives the diaphragm 31 to vibrate and sound, and a dome 33 provided on the diaphragm 31.
  • the diaphragm 31 includes a ball top 311 at an intermediate position, a folded ring portion 312 surrounding the ball top 311, and a fixing portion 313 surrounding the folded ring portion 312. The fixing portion 313 is interposed between the front cover 11 and the basin frame 12.
  • the fixing portion 313 includes a first fixing portion 3131 sandwiched and fixed between the first connection wall 121 and the third connection wall 111, and a second fixing wall 122 and the second connection wall The second fixing portion 3132 between the four connecting walls 112.
  • the basin holder 12 further includes a fifth connecting wall 123 extending from the second connecting wall 122 away from the receiving space 200.
  • the front cover 11 further includes The fifth connecting wall 123 fixedly fits the sixth connecting wall 113
  • the fixing portion 313 further includes a third fixing portion 3133 sandwiched and fixed between the fifth connecting wall 123 and the sixth connecting wall 113.
  • the fifth connecting wall 123 extends horizontally from the edge of the second connecting wall 122 away from the receiving space 200; in other embodiments, the fifth connecting wall 123 is away from the receiving space 200 from the edge of the second connecting wall 122
  • the direction extends obliquely.
  • the structure can increase the contact area between the diaphragm and the basin frame and the outer shell, enhance the bonding strength to improve the waterproof performance of the product, and prevent external moisture from entering the speaker cavity to affect the sound performance.
  • the front cover 11 includes a main body portion 11a located at an intermediate position and a peripheral portion 11b fixedly engaged with the main body portion 11a, and a sound output hole 11c is formed in the main body portion 11a.
  • the fixing portion 313 further includes a connecting portion 314 connecting the folding ring portion 312 and the first fixing portion 3131, so that the folding ring portion 312 of the diaphragm 31 and the fixing structure sandwiched and fixed to the housing 1 are spaced apart to ensure vibration
  • the membrane 31 can stably vibrate and has a large amplitude.
  • the front cover of the speaker and the basin frame provided with the utility model are provided with a slope structure for fixing the diaphragm, which effectively increases the bonding area between the front cover, the basin frame and the diaphragm, increases the bonding strength and thus improves the waterproofness of the product Performance, and the structure sets the width of the contact surface of the front cover, the basin frame and the diaphragm to be narrower, increases the effective radiation area of the speaker vibration system, improves the vibration sensitivity, and improves the vibration performance of the speaker.

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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

本实用新型揭示了一种扬声器，其包括外壳、磁路系统和振动系统，所述振动系统包括振膜以及音圈，所述外壳包括前盖和盆架，所述振膜包括球顶部、折环部以及固定部，所述盆架包括靠近所述音圈的第一连接壁以及自所述第一连接壁向远离所述收容空间倾斜延伸的第二连接壁，所述前盖包括与所述第一连接壁固定配合的第三连接壁以及与所述第二连接壁固定配合的第四连接壁，所述固定部包括夹设固定于所述第一连接壁和所述第三连接壁之间的第一固定部和夹设固定于所述第二连接壁和所述第四连接壁之间的第二固定部；本实用新型中的扬声器防水性能好、灵敏度高。

Description

扬声器 技术领域
本实用新型涉及电声转换领域,尤其涉及一种扬声器。
 背景技术
现有的扬声器包括外壳、振动系统以及磁路系统。磁路系统包括磁碗及收容于磁碗内的磁钢，磁钢收容于磁碗本体内并与磁碗形成磁间隙；振动系统包括振膜与音圈，音圈一端设于磁间隙内，另一端固定于振膜，振膜固定于外壳从而使得音圈悬置于磁间隙中。
 技术问题
而相关技术中，外壳包括前盖和盆架，振膜夹设于前盖和盆架之间，前盖与振膜、盆架与振膜之间通过胶合固定，且胶合面一般为平面，如果前盖、盆架、音膜胶合面宽度过小，会降低三者之间的粘结强度，影响产品的防水性能，如果胶合面的宽度过宽，会导致扬声器振动系统的有效辐射面积减小，灵敏度较低。
因而有必要研究一种防水性能好、灵敏度高的新型扬声器。
 技术解决方案
本实用新型旨在解决上述存在的技术问题，提供一种防水性能好、灵敏度高的新型扬声器。
为实现上述目的，本实用新型提供了一种扬声器，其包括具有收容空间的外壳、收容于所述收容空间的磁路系统和振动系统，所述振动系统包括固定于所述外壳的振膜以及连接所述振膜的音圈，所述外壳包括前盖和与所述前盖配合形成所述收容空间的盆架，所述振膜包括位于中间位置的球顶部、围绕所述球顶部的折环部以及围绕所述折环部的固定部，所述盆架包括靠近所述音圈的第一连接壁以及自所述第一连接壁向远离所述收容空间倾斜延伸的第二连接壁，所述前盖包括与所述第一连接壁固定配合的第三连接壁以及与所述第二连接壁固定配合的第四连接壁，所述固定部包括夹设固定于所述第一连接壁和所述第三连接壁之间的第一固定部和夹设固定于所述第二连接壁和所述第四连接壁之间的第二固定部。
优选地，所述第二连接壁自所述第一连接壁向远离所述收容空间且远离所述前盖的方向倾斜延伸。
优选地，所述盆架还包括自所述第二连接壁向远离所述收容空间方向延伸的第五连接壁，所述前盖还包括与所述第五连接壁固定配合的第六连接壁，所述固定部还包括夹设固定于所述第五连接壁和所述第六连接壁之间的第三固定部。
优选地，所述第五连接壁自所述第二连接壁边缘向远离所述收容空间方向水平延伸。
优选地，所述固定部还包括连接所述第一固定部和所述折环部的连接部。
 有益效果
与相关技术相比，本实用新型提供的扬声器的前盖和盆架上设置了斜面结构用于固定振膜，有效增大了前盖、盆架与振膜之间的胶合面积，增加了粘接强度从而提高产品的防水性能，且该结构将前盖、盆架与振膜的接触面宽度设置的更窄，增大了扬声器振动系统的有效辐射面积，提高了振动灵敏度，提升扬声器的振动性能。
 附图说明
图1是本实用新型扬声器的立体图；
图2是本实用新型扬声器的分解图；
图3是图1中沿A-A线的剖视图；
图4是图3剖视图中B的放大图；
图5是图3剖视图的部分分解图；
图6是图5分解图中C的放大图；
图7是图5分解图中D的放大图；
图8是图5分解图中E的放大图。
 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。
如图1至图2所示，为本实用新型的扬声器100，其包括具有收容空间200的外壳1、收容于收容空间200的磁路系统2和振动系统3。
外壳1包括前盖11和与前盖11配合形成收容空间200的盆架12。盆架12包括靠近收容空间200的第一连接壁121以及自第一连接壁121向远离收容空间200倾斜延伸的第二连接壁122，前盖11包括与第一连接壁121固定配合的第三连接壁111以及与第二连接壁122固定配合的第四连接壁112；在本实施例中，第二连接壁122自第一连接壁121向远离收容空间200且远离前盖11的方向倾斜延伸；在其他实施例中，第二连接壁122也可自第一连接壁121向远离收容空间200且靠近前盖11的方向倾斜延伸。
磁路系统2包括固定于外壳1的磁碗21、收容于磁碗21内的磁钢22以及设置于磁钢22上方的极芯23，具体的，磁碗21固定于盆架12；磁钢22包括主磁钢221和设置于主磁钢221两侧的副磁钢222。
如图2和图3所示，振动系统3包括固定于外壳1的振膜31、驱动振膜31振动发声的音圈32以及设于振膜31上的球顶33。振膜31包括位于中间位置的球顶部311、围绕球顶部311的折环部312以及围绕折环部312的固定部313，固定部313夹设于前盖11和盆架12之间。
从图3-图8中可以看出，固定部313包括夹设固定于第一连接壁121和第三连接壁111之间的第一固定部3131和夹设固定于第二连接壁122和第四连接壁112之间的第二固定部3132，在本实施例中，盆架12还包括自第二连接壁122向远离收容空间200方向延伸的第五连接壁123，前盖11还包括与第五连接壁123固定配合的第六连接壁113，固定部313还包括夹设固定于第五连接壁123和第六连接壁113之间的第三固定部3133。在本实施例中，第五连接壁123自第二连接壁122边缘向远离收容空间200方向水平延伸；在其他实施例中，第五连接壁123自第二连接壁122边缘向远离收容空间200方向倾斜延伸。该结构可以增大振膜与盆架和外壳之间的接触面积，增强了粘接强度从而提高产品的防水性能，阻止外界水分进入扬声器腔体内影响发声性能。
在本实施例中，前盖11包括位于中间位置的主体部11a和与主体部11a固定配合的周边部11b，主体部11a上开设有出声孔11c。
具体的，固定部313还包括连接折环部312和第一固定部3131的连接部314，使得振膜31的折环部312和夹设固定于外壳1的固定结构之间间隔设置，保证振膜31能够稳定振动，且具有较大的振幅。
本实用新型提供的扬声器的前盖和盆架上设置斜面结构用于固定振膜，有效增大了前盖、盆架与振膜之间的胶合面积，增加了粘接强度从而提高产品的防水性能，且该结构将前盖、盆架与振膜的接触面宽度设置的更窄，增大了扬声器振动系统的有效辐射面积，提高了振动灵敏度，提升扬声器的振动性能。
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 (5)

  1. 一种扬声器，其包括具有收容空间的外壳、收容于所述收容空间的磁路系统和振动系统，所述振动系统包括固定于所述外壳的振膜以及连接所述振膜的音圈，所述外壳包括前盖和与所述前盖配合形成所述收容空间的盆架，所述振膜包括位于中间位置的球顶部、围绕所述球顶部的折环部以及围绕所述折环部的固定部，其特征在于，所述盆架包括靠近所述音圈的第一连接壁以及自所述第一连接壁向远离所述收容空间倾斜延伸的第二连接壁，所述前盖包括与所述第一连接壁固定配合的第三连接壁以及与所述第二连接壁固定配合的第四连接壁，所述固定部包括夹设固定于所述第一连接壁和所述第三连接壁之间的第一固定部和夹设固定于所述第二连接壁和所述第四连接壁之间的第二固定部。
  2. 根据权利要求1所述的扬声器，其特征在于：所述第二连接壁自所述第一连接壁向远离所述收容空间且远离所述前盖的方向倾斜延伸。
  3. 根据权利要求1所述的扬声器，其特征在于：所述盆架还包括自所述第二连接壁向远离所述收容空间方向延伸的第五连接壁，所述前盖还包括与所述第五连接壁固定配合的第六连接壁，所述固定部还包括夹设固定于所述第五连接壁和所述第六连接壁之间的第三固定部。
  4. 根据权利要求3所述的扬声器，其特征在于：所述第五连接壁自所述第二连接壁边缘向远离所述收容空间方向水平延伸。
  5. 根据权利要求1所述的扬声器，其特征在于：所述固定部还包括连接所述第一固定部和所述折环部的连接部。
PCT/CN2019/111091 2018-12-12 2019-10-14 扬声器 WO2020119238A1 (zh)

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