WO2021134185A1 - 发声器件 - Google Patents
发声器件 Download PDFInfo
- Publication number
- WO2021134185A1 WO2021134185A1 PCT/CN2019/129868 CN2019129868W WO2021134185A1 WO 2021134185 A1 WO2021134185 A1 WO 2021134185A1 CN 2019129868 W CN2019129868 W CN 2019129868W WO 2021134185 A1 WO2021134185 A1 WO 2021134185A1
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- WO
- WIPO (PCT)
- Prior art keywords
- diaphragm
- magnetic
- wall
- circuit system
- magnetic circuit
- Prior art date
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
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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
- H04R9/06—Loudspeakers
Definitions
- the utility model relates to the field of electro-acoustic conversion, in particular to a sound-producing device applied to electronic sound box products.
- the sound device is also known as a speaker or a horn, which is used in a speaker to convert audio signals into sound for playback.
- a related art sounding device includes a basin frame, a vibration system respectively fixed to the basin frame, and a magnetic circuit system with a magnetic gap, and the magnetic circuit system drives the vibration system to vibrate and produce sound.
- the vibration system includes a diaphragm fixed to the frame and a voice coil fixed to the diaphragm.
- the magnetic circuit system includes a magnetic bowl, a magnetic steel fixed to the magnetic bowl, and a pole core stacked on the magnetic steel.
- the related art sounding device has only one diaphragm, and the structure has fewer frequency band adjustment factors, and the frequency band raising effect is limited, resulting in poor sound output of the sounding device.
- the purpose of the utility model is to provide a sounding device with adjustable frequency band and better sounding effect.
- the present invention provides a sound generating device, which includes a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound, the magnetic circuit system having a magnetic gap ,
- the vibration system includes a first diaphragm fixed to the basin frame, a second diaphragm located on the side of the first diaphragm away from the magnetic circuit system along the vibration direction of the first diaphragm, and a connection The connecting ring of the first diaphragm and the second diaphragm, a voice coil inserted into the magnetic gap to drive the first diaphragm and the second diaphragm to vibrate, and connect the first diaphragm And a first frame of the voice coil and a second frame connecting the second diaphragm and the voice coil; the first diaphragm is arranged around the second diaphragm.
- the first diaphragm includes a ring-shaped first vibrating part arranged around the magnetic circuit system, and a ring-shaped first vibrating part arranged at an end of the first vibrating part away from the magnetic circuit system.
- a ring portion and a second ring-shaped second folding ring portion disposed at one end of the first vibrating portion close to the magnetic circuit system, the first folding ring portion surrounds the second folding ring portion and is spaced apart from each other, the The first vibrating part is located between the first folding ring part and the second folding ring part, and the second folding ring part is fixed to an end of the connecting ring away from the second diaphragm.
- the first folding ring part includes a first fixing part attached to the first vibrating part, and a first folding ring bent and extended from the first fixing part in a direction away from the magnetic circuit system Part body and a second fixing part extending away from the magnetic circuit system from an end of the first folding ring part body away from the first fixing part, the second fixing part being fixed to the basin frame;
- the second folding ring part includes a third fixing part attached to the first vibrating part, a second folding ring part body bent and extending from the third fixing part toward the magnetic circuit system, and The end of the second folding ring portion main body away from the third fixing portion extends to the fourth fixing portion of the magnetic circuit system, and the fourth fixing portion is fixed to the end of the connecting ring away from the second diaphragm .
- the second diaphragm includes a second vibration portion, a third folding ring portion bent and extended from the periphery of the second vibration portion, and a third folding ring portion bent and extended by the third folding ring portion and fixed to the The fifth fixing part at one end of the connecting ring away from the first diaphragm and the dome fixed to the second vibration part.
- the first frame includes a first flat wall fixed to the first vibrating part, and a curved extension extending from an end of the first flat wall close to the magnetic circuit system to away from the first diaphragm.
- a second flat wall and an extension wall extending from the second flat wall close to the magnetic circuit system and connected to the voice coil, the second flat wall is arranged around the magnetic circuit system; the second frame The system extends through the magnetic circuit into the magnetic gap and abuts against the voice coil.
- the extension wall includes a first extension wall bent and extended from the second flat wall toward the magnetic circuit system, and one end of the first extension wall close to the magnetic circuit system is further away from the magnetic circuit system.
- a second extension wall extending by bending the first diaphragm, the second extension wall extending into the magnetic gap and abutting against the voice coil; one end of the second frame extends to abutting in the magnetic gap
- the other end of the second frame abuts against the second vibrating part and forms a fixed connection
- the second extension wall includes at least two and mutually Interval settings.
- the magnetic circuit system includes a magnetic bowl, a magnetic steel unit accommodating and fixed in the magnetic bowl, and a first concession slot penetrating the magnetic bowl; the first extension wall is arranged around the magnetic circuit system , The second extension wall extends into the magnetic gap through the first relief groove.
- the magnetic bowl includes a bottom wall of the magnetic bowl supported and fixed to the frame, side walls of the magnetic bowl bent and extended from the bottom wall of the magnetic bowl in a direction close to the diaphragm, and covered on the
- the magnetic steel unit is spaced from the bottom wall of the magnetic bowl and is arranged directly opposite the top wall of the magnetic bowl and a second relief slot penetrating the top wall of the magnetic bowl.
- the magnetic steel unit is fixed on the bottom wall of the magnetic bowl and is connected to the bottom wall of the magnetic bowl.
- the sidewalls of the magnetic bowl are spaced apart to form the magnetic gap, and the second skeleton extends into the magnetic gap through the second relief groove; the first relief groove is provided through the sidewall of the magnetic bowl.
- the basin frame includes a bottom wall, an outer wall bent and extended from the bottom wall away from the periphery of the magnetic circuit system, and an inner wall bent and extended from the bottom wall close to the periphery of the magnetic circuit system, so
- the outer wall is arranged around the inner wall and spaced apart from each other, and the inner wall is provided with a through opening therethrough;
- the inner wall is surrounded to form an accommodating space, and the magnetic circuit system is installed in the accommodating space, so that the first relief slot and the opening are arranged one by one;
- the extension wall sequentially extends into the magnetic gap through the opening and the first relief slot
- the vibration system further includes an elastic support assembly fixed to the basin frame, and the elastic support assembly includes an elastic element fixed to the basin frame and attached to the elastic element away from the first diaphragm
- the auxiliary diaphragm on one side; the elastic member is arranged around the magnetic circuit system; the elastic member includes a first fixed arm fixed to the basin frame, and fixed to the first frame away from the first diaphragm A second fixed arm on one side and an elastic arm connecting the first fixed arm and the second fixed arm.
- the vibration system includes a first diaphragm fixed to the basin frame, which is located far away from the first diaphragm along the vibration direction of the first diaphragm.
- the second diaphragm on one side of the magnetic circuit system and the connecting ring connecting the first diaphragm and the second diaphragm; the first diaphragm and the second diaphragm are connected to the insert through the first frame and the second frame, respectively
- the voice coil is connected in the magnetic gap.
- the sound-emitting device has dual diaphragms, with more frequency band adjustable factors, so that the acoustic performance of the sound-emitting device is better; on the other hand, because the second diaphragm is located far from the first diaphragm
- the side of the magnetic circuit system is connected to the first diaphragm through a connecting ring, that is, there is a gap between the plane where the first diaphragm is located and the plane where the second diaphragm is located.
- the size, thickness, material and other characteristics of the second diaphragm are adjusted to further adjust the frequency band of the sound emitting device and improve the acoustic performance of the sound emitting device.
- Figure 1 is a schematic diagram of the three-dimensional structure of the sound generating device of the present invention.
- Figure 2 is an exploded schematic diagram of the three-dimensional structure of the sound generating device of the present invention.
- Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
- Fig. 4 is an enlarged view of the part B shown in Fig. 3.
- the present invention provides a sound generating device 100, which includes a basin frame 1, a vibration system 2 supported on the basin frame 1, and a magnetic circuit system 3 that drives the vibration system 2 to vibrate and produce sound.
- the magnetic circuit system 3 has a magnetic gap 30.
- the basin frame 1 includes a bottom wall 11, an outer wall 12 bent and extended from the bottom wall 11 away from the periphery of the magnetic circuit system 3 toward the vibration system 2, and the bottom wall 11 is close to the magnetic circuit system
- the periphery of 3 is bent and extended toward the inner wall 13 of the vibration system 2.
- the outer wall 12 is arranged around the inner wall 13 and is spaced apart from each other.
- the inner wall 13 is provided with a through opening 131 passing through it, and the inner wall 13 surrounds Form the accommodation space 10.
- the vibration system 2 includes a first diaphragm 21 fixed to the basin frame 1, and a first diaphragm 21 located on the side of the first diaphragm 21 away from the magnetic circuit system 3 along the vibration direction of the first diaphragm 21.
- the sound emitting device 100 has double diaphragms, and the frequency band can be adjusted by more factors, so that the sound performance of the sound emitting device 100 is better; on the other hand, because the second diaphragm 22 is located in the first diaphragm.
- the diaphragm 21 is far away from the magnetic circuit system 3 and is connected to the first diaphragm 21 through the connecting ring 23, that is, there is a gap between the plane where the first diaphragm 21 is located and the plane where the second diaphragm 22 is located.
- the size, thickness, material and other characteristics of the first diaphragm 21 and/or the second diaphragm 22 are respectively adjusted to further adjust the frequency band of the sound emitting device 100 and improve the acoustic performance of the sound emitting device 100.
- the first diaphragm 21 includes a ring-shaped first vibration part 211 arranged around the magnetic circuit system 3, and a ring-shaped first vibration part 211 arranged at an end of the first vibration part 211 away from the magnetic circuit system 3.
- the first vibrating portion 211 is located between the first folding ring portion 212 and the second folding ring portion 213, and the second folding ring portion 213 is fixed to the connecting ring 23 away from each other.
- One end of the second diaphragm 22 One end of the second diaphragm 22.
- the first folding ring portion 212 includes a first fixing portion 2121 attached to the first vibrating portion 211 and extending from the first fixing portion 2121 in a direction away from the magnetic circuit system 3
- the first folding ring portion main body 2122 and the second fixing portion 2123 extending away from the magnetic circuit system 3 from the end of the first folding ring portion main body 2122 away from the first fixing portion 2121, the second fixing The portion 2123 is fixed to the basin frame 1;
- the second folding ring portion 213 includes a third fixing portion 2131 attached to the first vibrating portion 211, and the third fixing portion 2131 approaches the magnetic circuit
- the second folding ring part main body 2132 extending in the direction of the system 3 and the fourth fixing part 2133 extending from the end of the second folding ring main body 2132 away from the third fixing part 2131 toward the magnetic circuit system 3
- the fourth fixing portion 2133 is fixed to an end of the connecting ring 23 away from the second diaphragm 22.
- the second diaphragm 22 includes a second vibrating portion 221, a third folding ring portion 222 bent and extending from the periphery of the second vibrating portion 221, and a third folding ring portion 222 bent and extended and fixed to
- the connecting ring 23 is away from the fifth fixing portion 223 at one end of the first diaphragm 21 and the dome 224 fixed to the second vibrating portion 221.
- the first frame 25 includes a first flat wall 251 fixed to the first vibrating portion 211, and is bent from an end of the first flat wall 251 close to the magnetic circuit system 3 to away from the first diaphragm 21
- the second flat wall 252 that is folded and extended, and the extended wall 253 that extends from the second flat wall 252 toward the magnetic circuit system 3 and is connected to the voice coil 24, the second flat wall 252 surrounds the magnetic
- the circuit system 3 is provided; the second skeleton 26 penetrates the magnetic circuit system 3 and extends into the magnetic gap 30 and abuts against the voice coil 24.
- the extension wall 253 is used to fix the voice coil 24, that is, the frame 25 and the first diaphragm 21
- the diaphragm 21 forms an integrated structure, which reduces the assembly error between parts, improves its acoustic performance, simplifies the assembly process, and improves production efficiency.
- the extension wall 253 includes a first extension wall 2531 bent and extended from the second flat wall 252 to be close to the magnetic circuit system 3, and a first extension wall 2531 that is close to the magnetic circuit system 3 by the first extension wall 2531.
- One end of the second extension wall 2532 bent and extended away from the first diaphragm 21, the second extension wall 2532 extends into the magnetic gap 30 and abuts the voice coil 24; the second One end of the frame 26 extends into the magnetic gap 30 and abuts against the side of the voice coil 24 close to the first diaphragm 21, and the other end of the second frame 26 abuts against the second vibrating portion 221
- the second extension wall 2532 includes at least two and is spaced apart from each other.
- the vibration system 2 further includes an elastic support assembly 27 fixed to the basin frame 1.
- the elastic support assembly 27 includes an elastic member 271 fixed to the basin frame 1 and an elastic member 271 attached to the basin frame 1.
- the elastic member 271 is away from the auxiliary diaphragm 272 on the side of the first diaphragm 21; the elastic member 271 is arranged around the magnetic circuit system 3; the elastic member 271 includes a first fixing fixed to the basin frame 1.
- the arm 2711 is fixed to the second fixed arm 2712 of the first frame 25 facing away from the first diaphragm 21 and the elastic arm 2713 connecting the first fixed arm 2711 and the second fixed arm 2712.
- the second fixing arm 2712 is fixed to a side of the second flat wall 252 away from the first diaphragm 21.
- the auxiliary diaphragm 272 is ring-shaped and fixed to the elastic member 271 on the side away from the first diaphragm 21.
- the auxiliary diaphragm 272 can vibrate under the drive of the first frame to further improve the performance of the sound generating device.
- the sound effect provides more adjustable frequency band factors.
- the magnetic circuit system 3 adopts a split structure, and the efficiency of the magnetic circuit is better.
- the magnetic circuit system 3 includes a magnetic bowl 31, a magnetic steel unit 32 housed and fixed in the magnetic bowl 31, and a first recess 33 penetrating the magnetic bowl 31; the first extension wall 2531 surrounds the The magnetic circuit system 3 is provided, and the second extension wall 2532 extends into the magnetic gap 30 through the first relief slot 33.
- the magnetic bowl 31 includes a magnetic bowl bottom wall 311 supported and fixed to the basin frame 1, and a magnetic bowl side bent and extended from the magnetic bowl bottom wall 311 in a direction close to the first diaphragm 21
- the first relief groove 33 penetrates the side wall 312 of the magnetic bowl.
- the magnetic circuit system 3 is installed in the accommodating space 10 so that the first relief slot 33 and the through opening 131 are arranged one by one; the extension The wall 253 sequentially extends into the magnetic gap 30 through the through opening 131 and the first relief groove 33.
- the magnetic circuit system 3 includes a magnetic bowl top wall 313 covering the magnetic steel unit 32, and the magnetic bowl top wall 313 closes the magnetic steel unit 32 to the first vibration.
- the magnetic lines of force on one side of the film 21 are guided back into the magnetic gap 30, so that the magnetic lines of force of the magnetic circuit system 3 can be fully utilized, thereby effectively improving the sensitivity of the sound generating device.
- the magnetic steel unit 32 includes a first magnetic steel 321 fixed to the bottom wall 311 of the magnetic bowl, a second magnetic steel 322 fixed to the first magnetic steel 321, and a second magnetic steel 322 sandwiched between the first magnetic steel.
- the vibration system includes a first diaphragm fixed to the basin frame, which is located far away from the first diaphragm along the vibration direction of the first diaphragm.
- the second diaphragm on one side of the magnetic circuit system and the connecting ring connecting the first diaphragm and the second diaphragm;
- the acoustic performance of the sound emitting device is better; on the other hand, because the second diaphragm is located on the side of the first diaphragm away from the magnetic circuit system and is connected to the first diaphragm through a connecting ring, that is, the There is a gap between the plane of the diaphragm and the plane of the second diaphragm.
- the size, thickness and material of the first diaphragm and/or the second diaphragm can be adjusted separately to further adjust the frequency band of the sound emitting device. Improve the acoustic performance of sound emitting devices.
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
本实用新型提供了一种发声器件，其包括盆架、支撑于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统，所述磁路系统具有磁间隙，所述振动系统包括固定于所述盆架的第一振膜、沿所述第一振膜的振动方向位于所述第一振膜远离所述磁路系统一侧的第二振膜、连接所述第一振膜和所述第二振膜的连接环、插入至所述磁间隙以驱动所述第一振膜和所述第二振膜振动的音圈、连接所述第一振膜和所述音圈的第一骨架以及连接所述第二振膜和所述音圈的第二骨架；所述第一振膜围绕所述第二振膜设置。与相关技术比，本实用新型的发声器件可调节频带，且发声效果更好。
Description
本实用新型涉及电声转换领域，尤其涉及一种运用于电子音箱产品的发声器件。
发声器件又名扬声器或喇叭，运用于音箱中实现将音频信号转化为声音播放。
相关技术的发声器件包括盆架、分别固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述磁路系统驱动所述振动系统振动发声。
然而，相关技术的发声器件中，所述振动系统包括固定于所述盆架的振膜，固定于振膜的音圈。磁路系统包括磁碗，固定于磁碗的磁钢以及叠设于磁钢的极芯。相关技术的发声器件只有一张振膜，该结构频带可调节因素较少，且频带提升效果有限，从而导致发声器件的出声效果不好。
因此，实有必要提供一种新的发声器件解决上述技术问题。
本实用新型的目的在于提供一种可调节频带以及发声效果更优的发声器件。
为了达到上述目的，本实用新型提供了一种发声器件，其包括盆架、支撑于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统，所述磁路系统具有磁间隙，所述振动系统包括固定于所述盆架的第一振膜、沿所述第一振膜的振动方向位于所述第一振膜远离所述磁路系统一侧的第二振膜、连接所述第一振膜和所述第二振膜的连接环、插入至所述磁间隙以驱动所述第一振膜和所述第二振膜振动的音圈、连接所述第一振膜和所述音圈的第一骨架以及连接所述第二振膜和所述音圈的第二骨架；所述第一振膜围绕所述第二振膜设置。
优选的，所述第一振膜包括围绕所述磁路系统设置的呈环状的第一振动部、设置于所述第一振动部远离所述磁路系统一端的呈环状的第一折环部以及设置于所述第一振动部靠近所述磁路系统一端的呈环状的第二折环部，所述第一折环部环绕所述第二折环部且相互间隔，所述第一振动部位于所述第一折环部与所述第二折环部之间，所述第二折环部固定于所述连接环远离所述第二振膜的一端。
优选的，所述第一折环部包括贴设于所述第一振动部的第一固定部、由所述第一固定部向远离所述磁路系统的方向弯折延伸的第一折环部主体以及由所述第一折环部主体远离所述第一固定部的一端向远离所述磁路系统延伸的第二固定部，所述第二固定部固定于所述盆架；所述第二折环部包括贴设于所述第一振动部的第三固定部、由所述第三固定部向靠近所述磁路系统的方向弯折延伸的第二折环部主体以及由所述第二折环部主体远离所述第三固定部的一端向所述磁路系统延伸的第四固定部，所述第四固定部固定于所述连接环远离所述第二振膜的一端。
优选的，所述第二振膜包括第二振动部、由所述第二振动部的周缘弯折延伸的第三折环部、由所述第三折环部弯折延伸并固定于所述连接环远离所述第一振膜一端的第五固定部以及固定于所述第二振动部的球顶。
优选的，所述第一骨架包括固定于所述第一振动部的第一平板壁、自所述第一平板壁靠近所述磁路系统的一端向远离所述第一振膜弯折延伸的第二平板壁以及由所述第二平板壁向靠近所述磁路系统延伸并与所述音圈连接的延伸壁，所述第二平板壁环绕所述磁路系统设置；所述第二骨架贯穿所述磁路系统延伸至所述磁间隙内并与所述音圈相抵接。
优选的，所述延伸壁包括由所述第二平板壁向靠近所述磁路系统弯折延伸的第一延伸壁和由所述第一延伸壁靠近所述磁路系统的一端向远离所述第一振膜弯折延伸的第二延伸壁，所述第二延伸壁延伸至所述磁间隙内并与所述音圈相抵接；所述第二骨架一端延伸至所述磁间隙内抵接于所述音圈靠近所述第一振膜的一侧，所述第二骨架的另外一端抵接于所述第二振动部并形成固定连接，所述第二延伸壁包括至少两个且相互间隔设置。
优选的，所述磁路系统包括磁碗、收容固定于所述磁碗内的磁钢单元以及贯穿所述磁碗的第一让位槽；所述第一延伸壁围绕所述磁路系统设置，所述第二延伸壁经所述第一让位槽延伸至所述磁间隙内。
优选的，所述磁碗包括支撑固定于所述盆架的磁碗底壁、由所述磁碗底壁向所靠近所述振膜方向弯折延伸的磁碗侧壁、盖设于所述磁钢单元并与所述磁碗底壁间隔正对设置的磁碗顶壁以及贯穿所述磁碗顶壁的第二让位槽，所述磁钢单元固定于所述磁碗底壁并与所述磁碗侧壁间隔形成所述磁间隙，所述第二骨架经所述第二让位槽延伸至所述磁间隙内；所述第一让位槽贯穿所述磁碗侧壁设置。
优选的，所述盆架包括底壁、由所述底壁远离所述磁路系统的周缘弯折延伸的外壁以及由所述底壁靠近所述磁路系统的周缘弯折延伸的内壁，所述外壁环绕所述内壁设置且相互间隔，所述内壁设有贯穿其上的通口；
所述内壁围设形成容纳空间，所述磁路系统安装于所述容纳空间内，且使得所述第一让位槽与所述通口一一正对设置；
所述延伸壁依次经所述通口和所述第一让位槽延伸至所述磁间隙内
优选的，所述振动系统还包括固定于所述盆架的弹性支撑组件，所述弹性支撑组件包括固定于所述盆架的弹性件和贴合于所述弹性件远离所述第一振膜一侧的辅助振膜；所述弹性件围绕所述磁路系统设置；所述弹性件包括固定于所述盆架的第一固定臂、固定于所述第一骨架背离所述第一振膜一侧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弹臂。
与相关技术相比，本实用新型的发声器件中，所述振动系统包括固定于所述盆架的第一振膜、沿所述第一振膜的振动方向位于所述第一振膜远离所述磁路系统一侧的第二振膜以及连接所述第一振膜和所述第二振膜的连接环；第一振膜和第二振膜分别通过第一骨架和第二骨架与插设于磁间隙内的音圈连接。一方面，该发声器件具有双振膜，频带可调节因素更多，使所述发声器件的声学性能更优；另一方面，因所述第二振膜位于所述第一振膜远离所述磁路系统一侧并通过连接环与第一振膜连接，即，所述第一振膜所在的平面与所述第二振膜所在的平面存在落差，能够分别对第一振膜和/或第二振膜的尺寸、厚度及材质等特性进行调节，进一步调节发声器件的频带，提高发声器件的声学性能。
为了更清楚地说明本实用新型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实用新型的一些实施例，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为本实用新型发声器件的立体结构示意图；
图2为本实用新型发声器件的立体结构分解示意图；
图3为沿图1中A-A线的剖示图；
图4为图3中B所示部分的放大图。
下面将结合本实用新型实施例中的附图，对本实用新型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实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，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，都属于本实用新型保护的范围。
请同时参阅图1-3，本实用新型提供了一种发声器件100，其包括盆架1、支撑于所述盆架1的振动系统2以及驱动所述振动系统2振动发声的磁路系统3，所述磁路系统3具有磁间隙30。
所述盆架1包括底壁11、由所述底壁11远离所述磁路系统3的周缘向所述振动系统2弯折延伸的外壁12以及由所述底壁11靠近所述磁路系统3的周缘向所述振动系统2弯折延伸的内壁13，所述外壁12环绕所述内壁13设置且相互间隔，所述内壁13设有贯穿其上的通口131，所述内壁13围设形成容纳空间10。
所述振动系统2包括固定于所述盆架1的第一振膜21、沿所述第一振膜21的振动方向位于所述第一振膜21远离所述磁路系统3一侧的第二振膜22、连接所述第一振膜21和所述第二振膜22的连接环23、插入至所述磁间隙30以驱动所述第一振膜21和所述第二振膜22振动的音圈24、连接所述第一振膜21和所述音圈24的第一骨架25以及连接所述第二振膜22和所述音圈24的第二骨架26；所述第一振膜21围绕所述第二振膜22设置。
上述结构中，该发声器件100具有双振膜，频带可调节因素更多，使所述发声器件100的声学性能更优；另一方面，因所述第二振膜22位于所述第一振膜21远离所述磁路系统3一侧并通过连接环23与第一振膜21连接，即所述第一振膜21所在的平面与所述第二振膜22所在的平面存在落差，能够分别对第一振膜21和/或第二振膜22的尺寸、厚度及材质等特性进行调节，进一步调节发声器件100的频带，提高发声器件100的声学性能。
所述第一振膜21包括围绕所述磁路系统3设置的呈环状的第一振动部211、设置于所述第一振动部211远离所述磁路系统3一端的呈环状的第一折环部212以及设置于所述第一振动部211靠近所述磁路系统3一端的呈环状的第二折环部213，所述第一折环部212环绕所述第二折环部213且相互间隔，所述第一振动部211位于所述第一折环部212与所述第二折环部213之间，所述第二折环部213固定于所述连接环23远离所述第二振膜22的一端。
具体的，所述第一折环部212包括贴设于所述第一振动部211的第一固定部2121、由所述第一固定部2121向远离所述磁路系统3的方向弯折延伸的第一折环部主体2122以及由所述第一折环部主体2122远离所述第一固定部2121的一端向远离所述磁路系统3延伸的第二固定部2123，所述第二固定部2123固定于所述盆架1；所述第二折环部213包括贴设于所述第一振动部211的第三固定部2131、由所述第三固定部2131向靠近所述磁路系统3的方向弯折延伸的第二折环部主体2132以及由所述第二折环部主体2132远离所述第三固定部2131的一端向所述磁路系统3延伸的第四固定部2133，所述第四固定部2133固定于所述连接环23远离所述第二振膜22的一端。
所述第二振膜22包括第二振动部221、由所述第二振动部221的周缘弯折延伸的第三折环部222、由所述第三折环部222弯折延伸并固定于所述连接环23远离所述第一振膜21一端的第五固定部223以及固定于所述第二振动部221的球顶224。
所述第一骨架25包括固定于所述第一振动部211的第一平板壁251、自所述第一平板壁251靠近所述磁路系统3的一端向远离所述第一振膜21弯折延伸的第二平板壁252以及由所述第二平板壁252向靠近所述磁路系统3延伸并与所述音圈24连接的延伸壁253，所述第二平板壁252环绕所述磁路系统3设置；所述第二骨架26贯穿所述磁路系统3延伸至所述磁间隙30内并与所述音圈24相抵接。
上述结构中，因第一骨架25的第一平板壁251充当了所述第一振膜21的球顶结构，实现辐射声波，而延伸壁253用于固定音圈24，即骨架25与第一振膜21形成一体结构，减少了零件之间装配的配合误差，提高其声学性能，同时简化了装配工序，提高生产效率。
进一步的，所述延伸壁253包括由所述第二平板壁252向靠近所述磁路系统3弯折延伸的第一延伸壁2531和由所述第一延伸壁2531靠近所述磁路系统3的一端向远离所述第一振膜21弯折延伸的第二延伸壁2532，所述第二延伸壁2532延伸至所述磁间隙30内并与所述音圈24相抵接；所述第二骨架26一端延伸至所述磁间隙30内抵接于所述音圈24靠近所述第一振膜21的一侧，所述第二骨架26的另外一端抵接于所述第二振动部221并形成固定连接，所述第二延伸壁2532包括至少两个且相互间隔设置。
在本实施方式中，所述振动系统2还包括固定于所述盆架1的弹性支撑组件27，所述弹性支撑组件27包括固定于所述盆架1的弹性件271和贴合于所述弹性件271远离所述第一振膜21一侧的辅助振膜272；所述弹性件271围绕所述磁路系统3设置；所述弹性件271包括固定于所述盆架1的第一固定臂2711、固定于所述第一骨架25背离所述第一振膜21一侧的第二固定臂2712以及连接所述第一固定臂2711和所述第二固定臂2712的弹臂2713。该结构有效的平衡了所述振动系统2的横向摇摆，提升了发声器件100的可靠性。具体的，所述第二固定臂2712固定于所述第二平板壁252背离所述第一振膜21的一侧。在本实施方式中，辅助振膜272呈环状固定于所述弹性件271远离所述第一振膜21一侧，辅助振膜272能够在第一骨架的带动下振动，进一步提升发声器件的发声效果，提供更多可调节的频带因素。
在本实施方式中，所述磁路系统3采用分体结构，磁路效率更好。所述磁路系统3包括磁碗31、收容固定于所述磁碗31内的磁钢单元32以及贯穿所述磁碗31的第一让位槽33；所述第一延伸壁2531围绕所述磁路系统3设置，所述第二延伸壁2532经所述第一让位槽33延伸至所述磁间隙30内。
具体的，所述磁碗31包括支撑固定于所述盆架1的磁碗底壁311、由所述磁碗底壁311向所靠近所述第一振膜21方向弯折延伸的磁碗侧壁312、盖设于所述磁钢单元32并与所述磁碗底壁311间隔正对设置的磁碗顶壁313以及贯穿所述磁碗顶壁313的第二让位槽314，所述磁钢单元32固定于所述磁碗底壁311并与所述磁碗侧壁312间隔形成所述磁间隙30，所述第二骨架26经所述第二让位槽314延伸至所述磁间隙30内；所述第一让位槽33贯穿所述磁碗侧壁312设置。
更优的，在本实施方式中，所述磁路系统3安装于所述容纳空间10内，且使得所述第一让位槽33与所述通口131一一正对设置；所述延伸壁253依次经所述通口131和所述第一让位槽33延伸至所述磁间隙30内。
在本实施方式中，所述磁路系统3包括盖设于所述磁钢单元32上的磁碗顶壁313，所述磁碗顶壁313将所述磁钢单元32靠近所述第一振膜21一侧的磁力线导回至所述磁间隙30内，使所述磁路系统3的磁力线得到充分利用，从而有效提升了发声器件的灵敏度。具体的，所述磁钢单元32包括固定于所述磁碗底壁311的第一磁钢321、固定于叠设于第一磁钢321的第二磁钢322以及夹设于所述第一磁钢321和所述第二磁钢322之间的极芯323。
与相关技术相比，本实用新型的发声器件中，所述振动系统包括固定于所述盆架的第一振膜、沿所述第一振膜的振动方向位于所述第一振膜远离所述磁路系统一侧的第二振膜以及连接所述第一振膜和所述第二振膜的连接环；一方面，该发声器件具有双振膜，频带可调节因素更多，使所述发声器件的声学性能更优；另一方面，因所述第二振膜位于所述第一振膜远离所述磁路系统一侧并通过连接环与第一振膜连接，即，所述振膜所在的平面与所述第二振膜所在的平面存在落差，能够分别对第一振膜和/或第二振膜的尺寸、厚度及材质等特性进行调节，进一步调节发声器件的频带，提高发声器件的声学性能。
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 (10)
- 一种发声器件，其包括盆架、支撑于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统，所述磁路系统具有磁间隙，其特征在于， 所述振动系统包括固定于所述盆架的第一振膜、沿所述第一振膜的振动方向位于所述第一振膜远离所述磁路系统一侧的第二振膜、连接所述第一振膜和所述第二振膜的连接环、插入至所述磁间隙以驱动所述第一振膜和所述第二振膜振动的音圈、连接所述第一振膜和所述音圈的第一骨架以及连接所述第二振膜和所述音圈的第二骨架；所述第一振膜围绕所述第二振膜设置。
- 根据权利要求1所述的发声器件，其特征在于，所述第一振膜包括围绕所述磁路系统设置的呈环状的第一振动部、设置于所述第一振动部远离所述磁路系统一端的呈环状的第一折环部以及设置于所述第一振动部靠近所述磁路系统一端的呈环状的第二折环部，所述第一折环部环绕所述第二折环部且相互间隔，所述第一振动部位于所述第一折环部与所述第二折环部之间，所述第二折环部固定于所述连接环远离所述第二振膜的一端。
- 根据权利要求2所述的发声器件，其特征在于，所述第一折环部包括贴设于所述第一振动部的第一固定部、由所述第一固定部向远离所述磁路系统的方向弯折延伸的第一折环部主体以及由所述第一折环部主体远离所述第一固定部的一端向远离所述磁路系统延伸的第二固定部，所述第二固定部固定于所述盆架；所述第二折环部包括贴设于所述第一振动部的第三固定部、由所述第三固定部向靠近所述磁路系统的方向弯折延伸的第二折环部主体以及由所述第二折环部主体远离所述第三固定部的一端向所述磁路系统延伸的第四固定部，所述第四固定部固定于所述连接环远离所述第二振膜的一端。
- 根据权利要求3所述的发声器件，其特征在于，所述第二振膜包括第二振动部、由所述第二振动部的周缘弯折延伸的第三折环部、由所述第三折环部弯折延伸并固定于所述连接环远离所述第一振膜一端的第五固定部以及固定于所述第二振动部的球顶。
- 根据权利要求4所述的发声器件，其特征在于，所述第一骨架包括固定于所述第一振动部的第一平板壁、自所述第一平板壁靠近所述磁路系统的一端向远离所述第一振膜弯折延伸的第二平板壁以及由所述第二平板壁向靠近所述磁路系统延伸并与所述音圈连接的延伸壁，所述第二平板壁环绕所述磁路系统设置；所述第二骨架贯穿所述磁路系统延伸至所述磁间隙内并与所述音圈相抵接。
- 根据权利要求5所述的发声器件，其特征在于，所述延伸壁包括由所述第二平板壁向靠近所述磁路系统弯折延伸的第一延伸壁和由所述第一延伸壁靠近所述磁路系统的一端向远离所述第一振膜弯折延伸的第二延伸壁，所述第二延伸壁延伸至所述磁间隙内并与所述音圈相抵接；所述第二骨架一端延伸至所述磁间隙内抵接于所述音圈靠近所述第一振膜的一侧，所述第二骨架的另外一端抵接于所述第二振动部并形成固定连接，所述第二延伸壁包括至少两个且相互间隔设置。
- 根据权利要求6所述的发声器件，其特征在于，所述磁路系统包括磁碗、收容固定于所述磁碗内的磁钢单元以及贯穿所述磁碗的第一让位槽；所述第一延伸壁围绕所述磁路系统设置，所述第二延伸壁经所述第一让位槽延伸至所述磁间隙内。
- 根据权利要求7所述的发声器件，其特征在于，所述磁碗包括支撑固定于所述盆架的磁碗底壁、由所述磁碗底壁向所靠近所述第一振膜方向弯折延伸的磁碗侧壁、盖设于所述磁钢单元并与所述磁碗底壁间隔正对设置的磁碗顶壁以及贯穿所述磁碗顶壁的第二让位槽，所述磁钢单元固定于所述磁碗底壁并与所述磁碗侧壁间隔形成所述磁间隙，所述第二骨架经所述第二让位槽延伸至所述磁间隙内；所述第一让位槽贯穿所述磁碗侧壁设置。
- 根据权利要求7所述的发声器件，其特征在于，所述盆架包括底壁、由所述底壁远离所述磁路系统的周缘弯折延伸的外壁以及由所述底壁靠近所述磁路系统的周缘弯折延伸的内壁，所述外壁环绕所述内壁设置且相互间隔，所述内壁设有贯穿其上的通口；所述内壁围设形成容纳空间，所述磁路系统安装于所述容纳空间内，且使得所述第一让位槽与所述通口一一正对设置；所述延伸壁依次经所述通口和所述第一让位槽延伸至所述磁间隙内。
- 根据权利要求1所述的发声器件，其特征在于，所述振动系统还包括固定于所述盆架的弹性支撑组件，所述弹性支撑组件包括固定于所述盆架的弹性件和贴合于所述弹性件远离所述第一振膜一侧的辅助振膜；所述弹性件围绕所述磁路系统设置；所述弹性件包括固定于所述盆架的第一固定臂、固定于所述第一骨架背离所述第一振膜一侧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弹臂。
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