WO2021168936A1 - 发声器件 - Google Patents

发声器件 Download PDF

Info

Publication number
WO2021168936A1
WO2021168936A1 PCT/CN2020/080101 CN2020080101W WO2021168936A1 WO 2021168936 A1 WO2021168936 A1 WO 2021168936A1 CN 2020080101 W CN2020080101 W CN 2020080101W WO 2021168936 A1 WO2021168936 A1 WO 2021168936A1
Authority
WO
WIPO (PCT)
Prior art keywords
voice coil
diaphragm
fixed
embedded
fixed arm
Prior art date
Application number
PCT/CN2020/080101
Other languages
English (en)
French (fr)
Inventor
曾健
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
Publication of WO2021168936A1 publication Critical patent/WO2021168936A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details

Definitions

  • the invention relates to the field of sound and electricity, and in particular to a sound emitting device used in portable electronic products.
  • a related art sounding device which includes a basin frame, a vibration system and a magnetic circuit system respectively fixed to the basin frame, the magnetic circuit system is used to drive the vibration system to vibrate and produce sound;
  • the vibration system includes a frame fixed to the basin frame A diaphragm for vibrating and sounding, a voice coil attached to the diaphragm, and an elastic support component, one end of the elastic support component is fixed to the basin frame, and the other end is connected to the voice coil away from the diaphragm
  • the bottom end provides elastic support for the voice coil.
  • the size of the voice coil is small, and in the case of large amplitude, the shorter voice coil is easy to move out of the strong magnetic field of the magnetic circuit system, resulting in a sharp drop in the BL value.
  • the driving force is reduced, and more power is required to achieve the required amplitude, which makes the reliability low.
  • the nonlinearity of the voice coil vibration increases, which will cause greater distortion and make the acoustic performance poor.
  • the purpose of the present invention is to provide a sound device with excellent acoustic performance and high reliability.
  • the present invention provides a sound generating device, which includes a basin frame and a vibration system and a magnetic circuit system respectively fixed to the basin frame.
  • the voice coil is provided with an embedded part along the vibration direction perpendicular to the diaphragm
  • the vibration system further includes an elastic support assembly that elastically supports the voice coil
  • the elastic support assembly includes an elastic member, the elastic member One end is fixedly connected to the basin frame, and the other end is at least partially embedded in the embedded part of the voice coil.
  • the embedded portion penetrates the voice coil in a direction perpendicular to the vibration direction of the diaphragm.
  • the voice coil has a rectangular cross section along the direction perpendicular to the vibration direction of the diaphragm, the embedding part includes four and is respectively arranged at the four corners of the rectangle, and the voice coil is at the edge of the embedding part. Jumper wire winding.
  • the voice coil has a rectangular cross section along a direction perpendicular to the vibration direction of the diaphragm, the embedded part surrounds the voice coil, and the voice coil is wound by jumper wires on the long sides of the rectangle.
  • the voice coil has a rectangular structure with rounded corners;
  • the elastic support assembly includes two and is arranged on opposite sides of the basin frame at intervals, and each elastic member includes two oppositely arranged at intervals.
  • the second fixed arm, the four embedding parts are respectively arranged at the four rounded corners of the voice coil, and the four second fixed arms are respectively located at the four rounded corners of the voice coil and are respectively embedded Set in the four embedding parts.
  • the embedded portion has a ring structure
  • the voice coil includes a first portion connected to the diaphragm, a second portion spaced apart from the first portion and forming the embedded portion, and a second portion connected to the first portion And the second part and the connecting part located in the embedding part.
  • the elastic member includes a first fixed arm fixed to the basin frame, a second fixed arm spaced apart from the first fixed arm, and a connection between the first fixed arm and the second fixed arm.
  • Two elastic arms, and the second fixed arm is at least partially inserted into the embedding part and fixed with the voice coil.
  • the elastic support assembly further includes an auxiliary diaphragm attached to a side of the elastic member away from the diaphragm, and the auxiliary diaphragm elastically supports the elastic member.
  • the magnetic circuit system includes a magnetic bowl fixed to the basin frame, a main magnet stacked on the magnetic bowl, and a secondary magnet arranged around the main magnet, the main magnet and The secondary magnetic steel is spaced to form the magnetic gap, and an annular splint is pasted on the secondary magnetic steel.
  • the voice coil is provided with an embedded part along the vibration direction perpendicular to the diaphragm.
  • the embedded part that is, the elastic part is embedded between the top and bottom of the voice coil, so that the height design of the lower end of the voice coil is not restricted by the elastic part, making full use of the space between the voice coil and the magnetic bowl of the magnetic circuit system.
  • the height of the voice coil is designed to be higher. On the one hand, it effectively increases the BL value, saving power and improving reliability under the same displacement; on the other hand, because the voice coil is higher, the BL value changes smoothly and the product distortion is smaller. Effectively improve the acoustic performance of sound emitting devices.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a sound emitting device according to the first embodiment of the present invention
  • FIG. 2 is an exploded view of a part of the three-dimensional structure of the sound generating device according to the first embodiment of the present invention
  • Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
  • Figure 4 is a cross-sectional view taken along line B-B in Figure 1;
  • Fig. 5 is a partial enlarged view of the part shown in C in Fig. 4;
  • Fig. 6 is a graph showing the variation between BL value and vibration displacement of the sound generating device of the present invention and the related art sound generating device;
  • FIG. 7 is an exploded view of a partial three-dimensional structure of a sound emitting device according to the second embodiment of the present invention.
  • Fig. 8 is a front view of the voice coil of the sound emitting device according to the second embodiment of the present invention.
  • Fig. 9 is a partial enlarged view of the part shown in D in Fig. 8.
  • the present invention provides a sound generating device 100, which includes a basin frame 1, a vibration system 2 fixed to the basin frame 1, and a magnetic circuit system 3; the magnetic circuit system 3 has a magnetic gap 30.
  • the vibration system 2 is fixed to the basin frame 1 and includes a diaphragm 21, a voice coil 22 and an elastic support component 23.
  • the diaphragm 21 is fixed to the basin frame 1, specifically, the diaphragm 21 is fixed to the basin frame 1.
  • the voice coil 22 is connected to the diaphragm 21 and inserted into the magnetic gap 30 to drive the diaphragm 21 to vibrate and produce sound.
  • the voice coil 22 is provided with an embedded portion 220 along the vibration direction perpendicular to the diaphragm 21, and the setting of the embedded portion 220 provides conditions for the embedded fixation between the elastic support assembly 23 and the voice coil 22; Specifically, the embedding portion 220 penetrates the voice coil 22 in a direction perpendicular to the vibration direction of the diaphragm 21.
  • the cross section of the voice coil 22 perpendicular to the vibration direction of the diaphragm 21 is rectangular, the embedding portion 220 includes four and is respectively disposed at the four corners of the rectangle, and the voice coil 22 is located at the corners of the rectangle.
  • the edge of the embedded portion 220 is made by winding jumper wires.
  • the elastic support assembly 23 elastically supports the voice coil 22, and the elastic support assembly 23 is fixed on the side of the basin frame 1 away from the diaphragm 21.
  • the elastic support assembly 23 includes an elastic member 231 and an auxiliary diaphragm 232.
  • the elastic member 231 is a flexible circuit board, one end of which is fixedly connected to the side of the basin frame 1 away from the diaphragm 21, and the other end is at least partially embedded in the embedded portion 220 and fixed to the voice coil 22,
  • the voice coil 22 is electrically connected to the elastic member 231. On the one hand, it is used to improve the vibration intensity and balance of the vibration system 2 and suppress swings. On the other hand, the voice coil 22 is led out to connect to an external power source, which avoids the risk of the voice coil lead being easily broken when the voice coil lead structure leads to the power source. .
  • the elastic member 231 includes a first fixed arm 2311 fixed to the basin frame 1, a second fixed arm 2312 spaced apart from the first fixed arm 2311, and a second fixed arm 2312 connected to the first fixed arm 2312 and The two elastic arms 2313 of the second fixed arm 2312; the first fixed arm 2311 is fixed on the side of the basin frame 1 away from the diaphragm 21, and the second fixed arm 2312 is at least partially inserted in the The embedded part 220 is glued and fixed with the voice coil 22.
  • the auxiliary diaphragm 232 is attached to the side of the elastic member 231 away from the diaphragm 21.
  • the auxiliary diaphragm 232 includes an arc-shaped folding ring 2321, and a first connecting portion 2322 and a second connecting portion 2323 respectively bent and extended from opposite sides of the folding ring 2321.
  • the connecting portion 2322 is connected to the side of the first fixed arm 2311 away from the basin frame 1, and the second connecting portion 2323 is connected to the second fixed arm 2312 so that the folding ring 2321 and the elastic arm 2313 are connected to each other. Relative settings.
  • the shape and structure of the embedded part is not limited, and it can be specifically set according to actual production and use needs.
  • the voice coil 22 is expanded in a rectangular structure with rounded corners. It is explained that the second fixed arm 2312 is located at the position of the rounded corner of the voice coil 22, and the position where the embedded portion 220 is set corresponds to the position of the second fixed arm 2312.
  • the embedded portion 220 It has an arc-shaped structure and penetrates the voice coil 22.
  • the elastic support components 23 include two and are arranged on opposite sides of the basin frame 1 at intervals. More specifically , Each of the elastic members 231 includes two second fixed arms 2312 arranged oppositely, and the two second fixed arms 2312 are respectively connected to the first fixed arm 2311 through the two elastic arms 2313.
  • the four embedding portions 220 are respectively provided at the four rounded corners of the voice coil 22, and the four second fixed arms 2312 are respectively located at the four rounded corners of the voice coil 22 and are respectively embedded It is fixed in the four embedding parts 220.
  • the magnetic circuit system 3 includes a magnetic bowl 31 fixed to the basin frame 1, a main magnet 32 fixed to the magnetic bowl 31, fixed to the magnetic bowl 31 and formed spaced apart from the main magnet 32.
  • the secondary magnetic steel of the magnetic gap 30 is not limited to the magnetic circuit system 3.
  • the magnetic circuit system 3 has a five-magnetic circuit structure.
  • the auxiliary magnet includes two first auxiliary magnets 33 and two second auxiliary magnets 34; A pair of magnets 33 are respectively fixed to the magnetic bowl 31 and arranged on opposite sides of the main magnet 32 at relatively intervals, and one of the first auxiliary magnets 33 is arranged on the same side of each of the elastic support components 23, The first secondary magnets 33 and the elastic support assembly 23 on the same side are arranged relatively spaced apart; the two second secondary magnets 34 are respectively fixed to the magnetic bowl 31 and are arranged on the main magnet at relatively intervals 32 on the other opposite sides.
  • the road system 3 also includes a splint 35, which is fixed on the side of the basin frame 1 away from the diaphragm and is at least partially attached to the auxiliary magnetic steel; the elastic member 231 of the elastic support assembly 23 is attached It is arranged to be fixed on the side of the clamping plate 35 away from the basin frame 1, that is, the elastic member 231 is connected to the basin frame 1 through the clamping plate 35.
  • the clamping plate 35 protrudes to form a first secondary magnetic pole plate 351 stacked on the first secondary magnet 33 and a second secondary magnetic pole plate 352 stacked on the second secondary magnet 34,
  • the first fixed arm 2311 is attached and fixed to the splint 35, and a position corresponding to the splint 35, the elastic arm 2313 and the second fixed arm 2312 is provided with a relief space 350, and the relief space 350
  • a vibration space is provided for the second fixed arm 2312 and the elastic arm 2313 to avoid interference and collision between the second fixed arm 2312 and the elastic arm 2313 and the splint 35 during the vibration process.
  • FIG. 6 respectively shows the relationship between the BL value and the vibration displacement of the sound generating device of the present invention and the relationship between the BL value and the vibration displacement of the related art sound device.
  • the "B” in the BL value is the magnetic induction intensity.
  • And “L” is the height of effectively cutting the magnetic line of induction.
  • the BL value of the related art sounding device drops rapidly, the overall trend is very steep, and the nonlinearity is relatively large, while the BL value of the sounding device 100 of the present invention changes relatively smoothly, effectively reducing product distortion .
  • the second fixed arm 2312 of the elastic member 231 is embedded on the top and bottom of the voice coil 22.
  • the position between the ends provides elastic support for the voice coil 22.
  • the height setting of the voice coil 22 of the present invention is no longer restricted by the bottom end support, so that the height design of the lower end of the voice coil 22 is not affected by the elastic member 231.
  • the set position limits make full use of the space between the voice coil 22 and the magnetic bowl 31 of the magnetic circuit system 3 to design the voice coil 22 to be higher.
  • the BL value changes smoothly, and the product distortion is smaller, which effectively improves the acoustic performance of the sound emitting device 100.
  • the phenomenon of excessive vibration amplitude caused by the too short voice coil in the related art is avoided, thereby avoiding the interference between the downwardly protruding folding ring 2321 and the magnetic bowl 31 during the vibration process. Produce noise, ensure the reliability of vibration and effectively improve the acoustic performance.
  • the sound emitting device 100a of the second embodiment is basically the same as the sound emitting device of the first embodiment.
  • the sound generating device 100a of the second embodiment will be described in conjunction with related structures:
  • the voice coil 22a is provided with an embedded portion 220a along the vibration direction perpendicular to the diaphragm 21a.
  • the voice coil 22a has a rectangular cross section along the vibration direction perpendicular to the diaphragm 21a, and the embedded portion 220a surrounds the voice coil. 22a.
  • the voice coil 22a is made by winding jumpers on the long side of the rectangle.
  • the voice coil 22a penetrates along the vibration direction perpendicular to the diaphragm 21a to form a ring-shaped embedded portion 220a.
  • the voice coil 22a includes a first portion 221a connected to the diaphragm 21a, and
  • the first part 221a is arranged at intervals and collectively encloses the second part 222a of the embedded part 220a and the connecting part 223a that connects the first part 221a and the second part 222a and is located in the embedded part 220a, and the connection
  • the portion 223a electrically connects the first portion 221a and the second portion 222a.
  • the voice coil 22a has a rectangular structure with rounded corners, two elastic support components 23a are arranged on opposite sides of the basin frame 1a at intervals, and the elastic member 231a of each elastic support component 23a includes A first fixed arm 2311a fixed to the basin frame 1a, a second fixed arm 2312a spaced apart from the first fixed arm 2311a, and two elastic arms 2313, the two second fixed arms 2312a are spaced apart and pass through The two elastic arms 2313a are connected to the first fixed arm 2311a, and the four second fixed arms 2312a are respectively located at the four rounded positions of the voice coil 22a and all extend into the embedding portion 220a It is glued and fixed with the voice coil 22a.
  • the voice coil is provided with an embedded part along the vibration direction perpendicular to the diaphragm.
  • the embedded part that is, the elastic part is embedded between the top and bottom of the voice coil, so that the height design of the lower end of the voice coil is not restricted by the elastic part, making full use of the space between the voice coil and the magnetic bowl of the magnetic circuit system.
  • the height of the voice coil is designed to be higher. On the one hand, it can effectively increase the BL value, save power and improve reliability under the same displacement; on the other hand, because the voice coil is higher, the BL value changes smoothly and the product distortion is smaller. Effectively improve the acoustic performance of sound emitting devices.

Landscapes

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

Abstract

本发明提供了一种发声器件,其包括盆架以及分别固定于盆架的振动系统和磁路系统;振动系统包括振膜、驱动振膜振动发声的音圈以及弹性支撑音圈的弹性支撑组件;音圈沿垂直于振膜振动方向设有嵌入部,弹性支撑组件包括弹性件,弹性件一端固定连接于盆架,另一端至少部分嵌设于音圈的嵌入部。与相关技术相比,本发明的发声器件可靠性高且声学性能优。

Description

发声器件 技术领域
本发明涉及声电领域,尤其涉及一种运用于便携式电子产品的发声器件。
背景技术
随着移动互联网时代的到来,智能移动设备的数量不断上升。而在众多移动设备之中,手机无疑是最常见、最便携的移动终端设备。用于播放声音的发声器件被大量应用到现在的手机等智能移动设备之中。
相关技术的发声器件,其包括盆架以及分别固定于所述盆架的振动系统和磁路系统,所述磁路系统用以驱动所述振动系统振动发声;所述振动系统包括固定于盆架的用于振动发声的振膜、贴设于所述振膜的音圈以及弹性支撑组件,所述弹性支撑组件一端固定于所述盆架,另一端连接于所述音圈远离所述振膜的底端,为音圈提供弹性支撑。
技术问题
然而,相关技术中,由于内部空间有限,音圈的尺寸较小,而在振幅较大的情况下,较短的音圈容易运动出磁路系统的强磁场之外,导致BL值急剧下降,一方面,降低了驱动力,需要更大功率才能达到需要振幅,使得可靠性低,另一方面,音圈振动的非线性度增大,会引起更大失真,使得声学性能差。
因此,实有必要提供一种新的发声器件解决上述技术问题。
技术解决方案
本发明的目的在于提供一种声学性能优且可靠性高的发声器件。
为达到上述目的,本发明提供一种发声器件,其包括盆架以及分别固定于所述盆架的振动系统和磁路系统,所述振动系统包括振膜以及驱动所述振膜振动发声的音圈;所述音圈沿垂直于所述振膜振动方向设有嵌入部,所述振动系统还包括弹性支撑所述音圈的弹性支撑组件,所述弹性支撑组件包括弹性件,所述弹性件一端固定连接于所述盆架,另一端至少部分嵌设于所述音圈的嵌入部。
优选的,所述嵌入部沿垂直于所述振膜振动方向贯穿所述音圈。
优选的,所述音圈沿垂直于所述振膜振动方向的截面为矩形,所述嵌入部包括四个且分别设置于矩形的四个拐角的位置,所述音圈在所述嵌入部边缘跳线绕制。
优选的,所述音圈沿垂直于所述振膜振动方向的截面为矩形,所述嵌入部环绕所述音圈,所述音圈在矩形的长边跳线绕制。
优选的,所述音圈呈带圆角的矩形结构;所述弹性支撑组件包括两个且分别间隔设置于所述盆架的相对两侧,每一所述弹性件包括相对间隔设置的两个第二固定臂,四个所述嵌入部分别设置于所述音圈的四个圆角的位置,四个所述第二固定臂分别位于所述音圈的四个圆角的位置并分别嵌设于四个所述嵌入部。
优选的,所述嵌入部呈环状结构,所述音圈包括连接于所述振膜的第一部分、与所述第一部分间隔设置并形成所述嵌入部的第二部分以及连接所述第一部分和所述第二部分且位于所述嵌入部内的连接部。
优选的,所述弹性件包括固定于所述盆架的第一固定臂、与所述第一固定臂间隔设置的第二固定臂以及连接所述第一固定臂和所述第二固定臂的两个弹臂,所述第二固定臂至少部分插设于所述嵌入部内并与所述音圈固定。
优选的,所述弹性支撑组件还包括贴合于所述弹性件远离所述振膜一侧的辅助振膜,所述辅助振膜弹性支撑所述弹性件。
优选的,所述磁路系统包括固定于所述盆架的磁碗、叠设于所述磁碗上的主磁钢以及围绕所述主磁钢设置的副磁钢,所述主磁钢与所述副磁钢间隔形成所述磁间隙,所述副磁钢上贴设有环状的夹板。
有益效果
与相关技术相比,本发明的发声器件中,音圈沿垂直于振膜振动方向设有嵌入部,弹性件一端固定连接于盆架远离振膜一侧,另一端至少部分嵌设于音圈的嵌入部,即将弹性件嵌设于音圈的顶端和底端之间的位置,使得音圈下端的高度设计不受弹性件的限制,充分利用音圈到磁路系统的磁碗的空间以将音圈高度设计得更高,一方面,有效提高BL值,相同位移情况下,节约功率,提高可靠性;另一方面,由于音圈更高,BL值的变化平缓,产品失真更小,有效改善发声器件的声学性能。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图,其中:
图1为本发明实施方式一的发声器件的立体结构示意图;
图2为本发明实施方式一的发声器件的部分立体结构分解图;
图3为沿图1中A-A线的剖视图;
图4为沿图1中B-B线的剖视图;
图5为图4中C所示部分的局部放大图;
图6为本发明发声器件与相关技术发声器件的BL值与振动位移量之间的变化曲线图;
图7为本发明实施方式二的发声器件的部分立体结构分解图;
图8为本发明实施方式二的发声器件的音圈的正视图;
图9为图8中D所示部分的局部放大图。
本发明的实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
实施方式一
请参图1-5所示,本发明提供一种发声器件100,其包括盆架1、固定于所述盆架1的振动系统2以及磁路系统3;所述磁路系统3具有磁间隙30。
所述振动系统2固定于所述盆架1,其包括振膜21、音圈22以及弹性支撑组件23。
所述振膜21固定于所述盆架1,具体的,所述振膜21固定于所述盆架1。
所述音圈22连接于所述振膜21并插设于所述磁间隙30内用以驱动所述振膜21振动发声。所述音圈22沿垂直于所述振膜21振动方向设有嵌入部220,该嵌入部220的设置为所述弹性支撑组件23与所述音圈22之间的嵌设固定提供了条件;具体的,所述嵌入部220沿垂直于所述振膜21振动方向贯穿所述音圈22设置。
进一步的,所述音圈22沿垂直于所述振膜21振动方向的截面为矩形,所述嵌入部220包括四个且分别设置于矩形的四个拐角的位置,所述音圈22在所述嵌入部220边缘跳线绕制而成。
所述弹性支撑组件23弹性支撑所述音圈22,所述弹性支撑组件23固定于所述盆架1远离所述振膜21一侧。
具体的,所述弹性支撑组件23包括弹性件231以及辅助振膜232。
所述弹性件231为柔性电路板,其一端固定连接于所述盆架1远离所述振膜21一侧,另一端至少部分嵌设于所述嵌入部220并与所述音圈22固定,且所述音圈22与所述弹性件231电连接。一方面用于提高所述振动系统2的振动强度和平衡,抑制摇摆,另一方向为所述音圈22引出至连接外部电源,避免了音圈引线结构引出电源时音圈引线容易断裂的风险。
更具体的,所述弹性件231包括固定于所述盆架1的第一固定臂2311、与所述第一固定臂2311间隔设置的第二固定臂2312以及连接所述第一固定臂2312和所述第二固定臂2312的两个弹臂2313;所述第一固定臂2311固定于所述盆架1远离所述振膜21一侧,所述第二固定臂2312至少部分插设于所述嵌入部220内并与所述音圈22胶合固定。
所述辅助振膜232贴合于所述弹性件231远离所述振膜21一侧。
更具体的,所述辅助振膜232包括呈圆弧状的折环2321以及由所述折环2321相对两侧分别弯折延伸的第一连接部2322和第二连接部2323,所述第一连接部2322连接于所述第一固定臂2311远离所述盆架1一侧,所述第二连接部2323连接于所述第二固定臂2312并使所述折环2321与所述弹臂2313相对设置。
值得一提的是,嵌入部的形状结构是不限的,其根据实际生产使用的需要进行具体的设置,比如,在本实施方式中,以所述音圈22呈带圆角的矩形结构展开说明,所述第二固定臂2312位于所述音圈22的圆角的位置,则所述嵌入部220设置的位置与所述第二固定臂2312的位置对应,在此,所述嵌入部220呈圆弧状结构并贯穿所述音圈22。
需要说明的是,弹性支撑组件的数量是不限的,比如,在本实施方式中,所述弹性支撑组件23包括两个且分别间隔设置于所述盆架1的相对两侧,更具体的,每一所述弹性件231包括相对间隔设置的两个所述第二固定臂2312,两个所述第二固定臂2312分别通过两个所述弹臂2313连接于所述第一固定臂2311;四个所述嵌入部220分别设置于所述音圈22的四个圆角的位置,四个所述第二固定臂2312分别位于所述音圈22的四个圆角的位置并分别嵌设固定于四个所述嵌入部220内。
所述磁路系统3包括固定于所述盆架1的磁碗31、固定于所述磁碗31的主磁钢32、固定于所述磁碗31且与所述主磁钢32间隔形成所述磁间隙30的副磁钢。
在本实施方式中,所述磁路系统3为五磁路结构,在此,所述副磁钢包括两个第一副磁钢33以及两个第二副磁钢34;两个所述第一副磁钢33分别固定于所述磁碗31且相对间隔设置于所述主磁钢32相对两侧,在各所述弹性支撑组件23的同一侧设置一个所述第一副磁钢33,同一侧的所述第一副磁钢33与所述弹性支撑组件23相对间隔设置;两个所述第二副磁钢34分别固定于所述磁碗31且相对间隔设置于所述主磁钢32另外相对两侧。
更优的,为了进一步提高所述磁路系统3的磁学性能,使所述磁路系统3的磁力线尽可能多的被所述音圈22切割,以形成更大的驱动力,所述磁路系统3还包括夹板35,所述夹板35固定于所述盆架1远离所述振膜一侧且至少部分贴设于所述副磁钢上;所述弹性支撑组件23的弹性件231贴设固定于所述夹板35远离所述盆架1一侧,即弹性件231通过所述夹板35连接于所述盆架1。
更具体的,所述夹板35凸出延伸形成叠设于所述第一副磁钢33的第一副磁极板351和叠设于所述第二副磁钢34的第二副磁极板352,所述第一固定臂2311贴设固定于所述夹板35,且所述夹板35与所述弹臂2313和所述第二固定臂2312对应的位置设有让位空间350,该让位空间350为所述第二固定臂2312和所述弹臂2313提供了振动空间,避免在振动过程中,所述第二固定臂2312和所述弹臂2313与所述夹板35之间干涉碰撞。
同时图6分别示出本发明发声器件的BL值与振动位移量之间的变化关系以及相关技术发声器件的BL值与振动位移量之间的变化关系,BL值中的“B”为磁感应强度,而“L”为有效切割磁感线的高度,由图6分析可知,本发明的发声器件100与相关技术的发声器件相比,本发明的发声器件100的BL值更高,而且在相同电压情况下,本发明的发声器件100能提供更大的驱动力,从而能提供更大响度。同时,在往上振动过程中,相关技术的发声器件的BL值急速下降,整个走势非常陡,非线性度较大,而本发明的发声器件100的BL值变化较为平缓,有效地降低产品失真。
因此,与相关技术中的弹性件为音圈提供底端的弹性支撑的方式相比,上述结构中,将所述弹性件231的第二固定臂2312嵌设于所述音圈22的顶端和底端之间的位置以为所述音圈22提供弹性支撑,本发明的音圈22的高度设置不再受底端支撑的限制,使得所述音圈22下端的高度设计不受所述弹性件231设置的位置的限制,充分利用音圈22到磁路系统3的磁碗31的空间以将音圈22高度设计得更高,一方面,有效提高BL值,相同位移情况下,节约功率,提高可靠性;另一方面,由于音圈22高度更高,BL值的变化平缓,产品失真更小,有效改善所述发声器件100的声学性能。另外,通过更高音圈22的设置,避免了相关技术中由于音圈过短而导致振动幅度过大的现象,从而避免了振动过程中向下凸出的折环2321与磁碗31发生干涉而产生杂音,保证了振动的可靠性和有效改善声学性能。
实施方式二
请参阅图7-9所示,实施方式二的发声器件100a与实施方式一的发声器件基本相同,两者相同的部分在此不再一一赘述,两者不同的地方在于音圈的具体结构,下面将结合相关的结构对本实施方式二的发声器件100a展开说明:
音圈22a沿垂直于所述振膜21a振动方向设有嵌入部220a,具体的,所述音圈22a沿垂直于振膜21a振动方向的截面为矩形,所述嵌入部220a环绕所述音圈22a,所述音圈22a在矩形的长边跳线绕制而成。
进一步的,所述音圈22a沿垂直所述振膜21a的振动方向贯穿形成呈环状结构的嵌入部220a,所述音圈22a包括连接于所述振膜21a的第一部分221a、与所述第一部分221a间隔设置并共同围成所述嵌入部220a的第二部分222a以及连接所述第一部分221a和所述第二部分222a且位于所述嵌入部220a内的连接部223a,且所述连接部223a将所述第一部分221a和所述第二部分222a电连接。
更进一步的,所述音圈22a呈带圆角的矩形结构,弹性支撑组件23a包括两个且分别间隔设置于盆架1a的相对两侧,每一所述弹性支撑组件23a的弹性件231a包括固定于盆架1a的第一固定臂2311a、分别与所述第一固定臂2311a间隔设置的第二固定臂2312a以及两个弹臂2313,两个所述第二固定臂2312a相对间隔设置分别通过两个所述弹臂2313a连接于所述第一固定臂2311a,四个所述第二固定臂2312a分别位于所述音圈22a的四个圆角的位置且均延伸至所述嵌入部220a内与所述音圈22a形成胶合固定。
与相关技术相比,本发明的发声器件中,音圈沿垂直于振膜振动方向设有嵌入部,弹性件一端固定连接于盆架远离振膜一侧,另一端至少部分嵌设于音圈的嵌入部,即将弹性件嵌设于音圈的顶端和底端之间的位置,使得音圈下端的高度设计不受弹性件的限制,充分利用音圈到磁路系统的磁碗的空间以将音圈高度设计得更高,一方面,有效提高BL值,相同位移情况下,节约功率,提高可靠性;另一方面,由于音圈更高,BL值的变化平缓,产品失真更小,有效改善发声器件的声学性能。
以上所述的仅是本发明的实施方式,在此应当指出,对于本领域的普通技术人员来说,在不脱离本发明创造构思的前提下,还可以做出改进,但这些均属于本发明的保护范围。

Claims (9)

  1. 一种发声器件,其包括盆架以及分别固定于所述盆架的振动系统和磁路系统,所述振动系统包括振膜以及驱动所述振膜振动发声的音圈,其特征在于,所述音圈沿垂直于所述振膜振动方向设有嵌入部,所述振动系统还包括弹性支撑所述音圈的弹性支撑组件,所述弹性支撑组件包括弹性件,所述弹性件一端连接于所述盆架,另一端至少部分嵌设于所述音圈的嵌入部。
  2. 根据权利要求1所述的发声器件,其特征在于,所述嵌入部沿垂直于所述振膜振动方向贯穿所述音圈,所述弹性件穿过所述嵌入部。
  3. 根据权利要求1或2所述的发声器件,其特征在于,所述音圈沿垂直于所述振膜振动方向的截面为矩形,所述嵌入部包括四个且分别设置于矩形的四个拐角的位置,所述音圈在所述嵌入部边缘跳线绕制。
  4. 根据权利要求1或2所述的发声器件,其特征在于,所述音圈沿垂直于所述振膜振动方向的截面为矩形,所述嵌入部环绕所述音圈,所述音圈在矩形的长边跳线绕制。
  5. 根据权利要求3所述的发声器件,其特征在于,所述音圈呈带圆角的矩形结构;所述弹性支撑组件包括两个且分别间隔设置于所述盆架的相对两侧,每一所述弹性件包括相对间隔设置的两个第二固定臂,四个所述嵌入部分别设置于所述音圈的四个圆角的位置,四个所述第二固定臂分别位于所述音圈的四个圆角的位置并分别嵌设于四个所述嵌入部。
  6. 根据权利要求4所述的发声器件,其特征在于,所述嵌入部呈环状结构,所述音圈包括连接于所述振膜的第一部分、与所述第一部分间隔设置并形成所述嵌入部的第二部分以及连接所述第一部分和所述第二部分且位于所述嵌入部内的连接部。
  7. 根据权利要求2所述的发声器件,其特征在于,所述弹性件包括固定于所述盆架的第一固定臂、与所述第一固定臂间隔设置的第二固定臂以及连接所述第一固定臂和所述第二固定臂的两个弹臂,所述第二固定臂至少部分插设于所述嵌入部内并与所述音圈固定。
  8. 根据权利要求7所述的发声器件,其特征在于,所述弹性支撑组件还包括贴合于所述弹性件远离所述振膜一侧的辅助振膜,所述辅助振膜弹性支撑所述弹性件。
  9. 根据权利要求7所述的发声器件,其特征在于,所述磁路系统包括固定于所述盆架的磁碗、叠设于所述磁碗上的主磁钢以及围绕所述主磁钢设置的副磁钢,所述主磁钢与所述副磁钢间隔形成所述磁间隙,所述副磁钢上贴设有环状的夹板。
PCT/CN2020/080101 2020-02-25 2020-03-19 发声器件 WO2021168936A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010117786.0A CN111314828A (zh) 2020-02-25 2020-02-25 发声器件
CN202010117786.0 2020-02-25

Publications (1)

Publication Number Publication Date
WO2021168936A1 true WO2021168936A1 (zh) 2021-09-02

Family

ID=71160220

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/080101 WO2021168936A1 (zh) 2020-02-25 2020-03-19 发声器件

Country Status (2)

Country Link
CN (1) CN111314828A (zh)
WO (1) WO2021168936A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150188398A1 (en) * 2013-12-31 2015-07-02 AAC Technologies Pte. Ltd. Electromagnetic transducer
WO2016092782A1 (ja) * 2014-12-12 2016-06-16 パナソニックIpマネジメント株式会社 ラウドスピーカと、ラウドスピーカを用いた電子機器、および移動体装置
CN107249163A (zh) * 2017-07-10 2017-10-13 歌尔股份有限公司 一种发声装置
CN109348372A (zh) * 2018-09-30 2019-02-15 瑞声科技(新加坡)有限公司 发声器件
CN109379680A (zh) * 2018-09-30 2019-02-22 瑞声科技(新加坡)有限公司 发声器件

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5848173A (en) * 1995-03-30 1998-12-08 Pioneer Electronic Corporation Surroundless loudspeaker
JP2010034716A (ja) * 2008-07-28 2010-02-12 Panasonic Corp スピーカ
CN207382562U (zh) * 2017-10-11 2018-05-18 厦门立声信息科技有限公司 一种便携式骨传导扬声器
CN209526871U (zh) * 2018-12-29 2019-10-22 瑞声科技(新加坡)有限公司 发声器件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150188398A1 (en) * 2013-12-31 2015-07-02 AAC Technologies Pte. Ltd. Electromagnetic transducer
WO2016092782A1 (ja) * 2014-12-12 2016-06-16 パナソニックIpマネジメント株式会社 ラウドスピーカと、ラウドスピーカを用いた電子機器、および移動体装置
CN107249163A (zh) * 2017-07-10 2017-10-13 歌尔股份有限公司 一种发声装置
CN109348372A (zh) * 2018-09-30 2019-02-15 瑞声科技(新加坡)有限公司 发声器件
CN109379680A (zh) * 2018-09-30 2019-02-22 瑞声科技(新加坡)有限公司 发声器件

Also Published As

Publication number Publication date
CN111314828A (zh) 2020-06-19

Similar Documents

Publication Publication Date Title
CN209526874U (zh) 扬声器
US10448167B2 (en) Acoustic device
WO2021000082A1 (zh) 发声器件
US10462576B2 (en) Acoustic device
CN109862477B (zh) 发声器件
WO2020024669A1 (zh) 扬声器
CN210641017U (zh) 发声器件
WO2021258439A1 (zh) 发声器件
US20180109879A1 (en) Speaker device
CN210016629U (zh) 电声器件
CN209897257U (zh) 发声器件
WO2020140550A1 (zh) 发声器件
CN216391402U (zh) 扬声器
WO2021114211A1 (zh) 发声器件
CN208924474U (zh) 发声器件
CN202496061U (zh) 微型动圈式电声转换器
CN202019444U (zh) 一种振膜以及采用该振膜的动圈式电声转换器
KR101017070B1 (ko) 스피커
WO2021168936A1 (zh) 发声器件
CN210093514U (zh) 发声器件
CN213938307U (zh) 发声器件
WO2021253534A1 (zh) 发声器件
WO2021114122A1 (zh) 发声器件
WO2021119995A1 (zh) 发声器件
WO2021168937A1 (zh) 发声器件

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20921168

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20921168

Country of ref document: EP

Kind code of ref document: A1