WO2024130791A1 - 多功能发声器件 - Google Patents

多功能发声器件 Download PDF

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Publication number
WO2024130791A1
WO2024130791A1 PCT/CN2022/144409 CN2022144409W WO2024130791A1 WO 2024130791 A1 WO2024130791 A1 WO 2024130791A1 CN 2022144409 W CN2022144409 W CN 2022144409W WO 2024130791 A1 WO2024130791 A1 WO 2024130791A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
sound
magnetic circuit
fixed
main
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PCT/CN2022/144409
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English (en)
French (fr)
Inventor
黄兴志
宋威
马杰
毛路斌
汤赟
李子昂
Original Assignee
瑞声科技（南京）有限公司
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Application filed by 瑞声科技（南京）有限公司 filed Critical 瑞声科技（南京）有限公司
Priority to US18/337,419 priority Critical patent/US20240205607A1/en
Publication of WO2024130791A1 publication Critical patent/WO2024130791A1/zh

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  • the invention relates to the field of electroacoustic conversion, and in particular to a multifunctional sound-generating device used in electronic speaker products.
  • the multifunctional sound-generating device of the related technology includes a shell and a sound-generating unit and a motor assembly accommodated in the shell, the sound-generating unit includes a basin frame and a vibration system and a magnetic circuit system with a magnetic gap respectively fixed to the basin frame; the motor assembly is attached to a side of the magnetic circuit system away from the vibration system.
  • the sound unit and the motor assembly in the multifunctional sound-emitting device described in the related art can be controlled independently, but because the motor assembly is stacked under the sound unit, the thickness of the multifunctional sound-emitting device increases, and it is difficult to achieve the thinness and lightness of the multifunctional sound-emitting device.
  • the respective magnetic steels of the sound unit and the motor assembly are not on the same plane, and the respective magnetic field driving forces interfere and affect each other, resulting in a large number of magnetic steels in the multifunctional sound-emitting device, resulting in a large volume and unable to be miniaturized, thereby making the acoustic performance and vibration performance of the multifunctional sound-emitting device poor.
  • the vibration direction of the multifunctional sound-emitting device described in the related art is generally perpendicular to the vibration direction of the diaphragm of the sound unit, and can only achieve vibration in one direction.
  • the object of the present invention is to provide a multifunctional sound-generating device which can realize vibration functions in two directions and has a small volume, excellent acoustic performance and excellent vibration performance.
  • the present invention provides a multifunctional sound-generating device, which includes a shell having a receiving space and a sound-generating unit and a motor assembly fixedly received in the receiving space, the sound-generating unit includes a basin frame and a vibration system and a magnetic circuit system having a magnetic gap respectively fixed to the basin frame, the vibration system includes a diaphragm fixed to the basin frame and a voice coil driving the diaphragm to produce sound, the voice coil is inserted into the magnetic gap to drive the diaphragm to vibrate along a first direction to produce sound; the sound-generating unit also includes a first elastic member suspending the magnetic circuit system in the receiving space; one end of the first elastic member is fixed to the basin frame, and the other end of the first elastic member is fixed to the basin frame.
  • the end is elastically connected to the magnetic circuit system; the voice coil is inserted into the magnetic gap to drive the magnetic circuit system to vibrate along the first direction, so as to drive the sound-emitting unit to vibrate along the first direction; the magnetic circuit system is provided with a clearance groove formed by being recessed along the first direction, and the motor assembly includes a stator unit accommodated in the clearance groove and a second elastic member suspending the sound-emitting unit in the accommodating space; the stator unit is fixed to the shell, and the stator unit is spaced from the magnetic circuit system and drives the magnetic circuit system to vibrate along the second direction, so as to drive the sound-emitting unit to vibrate along the second direction; wherein, the first direction and the second direction are perpendicular to each other.
  • the magnetic circuit system includes a yoke, a main magnetic circuit respectively fixed to the yoke, an auxiliary magnetic circuit surrounding the main magnetic circuit and spaced apart from the main magnetic circuit to form the magnetic gap, and a top magnetic steel stacked and fixed on the side of the main magnetic circuit close to the vibration system;
  • the yoke is spaced apart from the shell and is located on the side of the magnetic circuit system away from the vibration system, the other end of the first elastic member is elastically connected to the yoke, and a yoke center hole passing through the yoke is provided at the center position of the yoke;
  • the main magnetic circuit is annular and encloses a guide space, the main magnetic circuit is arranged around the yoke center hole, the guide space is connected to the yoke center hole, the top magnetic steel completely covers the guide space, and the main magnetic circuit, the top magnetic steel and the yoke together enclose the give way groove.
  • the diaphragm is ring-shaped, the diaphragm is arranged around the top magnetic steel, the outer side of the diaphragm is fixed to the basin frame, and the inner side of the diaphragm is fixed to the main magnetic circuit and/or the top magnetic steel.
  • the main magnetic circuit includes a first annular main magnetic steel fixed to the magnetic yoke, an annular main pole core stacked and fixed to the first main magnetic steel, and an annular second main magnetic steel stacked and fixed to the main pole core;
  • the secondary magnetic circuit includes an annular secondary magnetic steel fixed to the magnetic yoke and an annular secondary pole core stacked and fixed to the secondary magnetic steel; the secondary pole core and the main pole core are spaced to form the magnetic gap.
  • the magnetizing directions of the first main magnetic steel, the second main magnetic steel, the auxiliary magnetic steel and the top magnetic steel are all along the first direction, and the magnetizing directions of the first main magnetic steel are opposite to the magnetizing directions of the second main magnetic steel and the auxiliary magnetic steel, respectively;
  • the magnetic pole of the first main magnetic steel close to the main pole core is the same as the magnetic pole of the second main magnetic steel close to the main pole core, and the magnetic pole of the first main magnetic steel close to the main pole core is opposite to the magnetic pole of the auxiliary magnetic steel close to the auxiliary pole core.
  • the top magnetic steel is a multi-pole magnetization structure including multiple magnetization directions, the multiple magnetization directions are opposite in sequence along the second direction, and the magnetic pole of the top magnetic steel close to the second main magnetic steel is opposite to the magnetic pole of the second main magnetic steel close to the top magnetic steel.
  • the first elastic member includes a first section fixed to the basin frame, a second section bent and extended from the first section toward the yoke, a third section fixed to the yoke, and elastic arms elastically connecting the second section and the third section respectively; one end of the second elastic member is fixed to the shell, and the other end of the second elastic member is fixed to the first section.
  • the sound-emitting unit is rectangular, and the second elastic members include two, which are respectively located on opposite sides of the short axis of the sound-emitting unit.
  • the stator unit includes an iron core fixed to the shell and a coil wound around the iron core, the iron core is fixed to the shell and is at least partially accommodated in the guide space after passing through the center hole of the yoke; the coil is respectively separated from the main magnetic circuit and the top magnetic steel and drives the magnetic circuit system to vibrate along the second direction, so as to drive the sound-emitting unit to vibrate along the second direction.
  • the vibration system also includes a frame fixed to the diaphragm and an elastic support member spaced apart from the diaphragm, the voice coil is suspended in the magnetic gap through the frame, one end of the elastic support member is fixed to the basin frame, and the other end of the elastic support member is fixed to the frame.
  • the multifunctional sound-generating device of the present invention sets a clearance groove formed by being recessed along the first direction at the center position of the magnetic circuit system. Since there are fewer magnetic lines of force in the middle area of the magnetic circuit system, after the structure sets the clearance groove in the middle area of the magnetic circuit system, the utilization rate of the magnetic energy product of the magnetic circuit system is improved, so that the acoustic performance of the multifunctional sound-generating device is excellent; the motor assembly is accommodated in the clearance groove, so that the overall thickness of the multifunctional sound-generating device is small, which is conducive to the lightweight application of the multifunctional sound-generating device; one end of the first elastic member set in the sound-generating unit is fixed to the basin frame, and the other end of the first elastic member is elastically connected to the magnetic circuit system.
  • the magnetic circuit system When the voice coil is inserted into the magnetic gap, the magnetic circuit system is driven to vibrate in the first direction, so as to drive the sound-generating unit to vibrate in the first direction;
  • the motor assembly is provided with a stator unit accommodated in the give way slot and a second elastic member suspending the sound-generating unit in the accommodation space; and the stator unit is fixed to the side of the shell away from the vibration system, the stator unit is separated from the magnetic circuit system and the magnetic circuit system is driven to vibrate in the second direction, so as to drive the sound-generating unit to vibrate in the second direction.
  • the first direction and the second direction are perpendicular to each other, and when the motor assembly drives the sound-generating unit to vibrate in the second direction, the stator unit of the motor assembly has a small influence on the driving force of the magnetic circuit system of the sound-generating unit in the first direction, and there is little mutual interference; when the voice coil drives the sound-generating unit to vibrate in the first direction, the magnetic circuit system can be reused, and this structure enables the multifunctional sound-generating device of the present invention to be small in size, and at the same time, it can achieve excellent acoustic performance and excellent vibration performance.
  • FIG1 is a schematic diagram of the three-dimensional structure of a multifunctional sound-generating device of the present invention.
  • FIG2 is a partial exploded view of the three-dimensional structure of the multifunctional sound-generating device of the present invention.
  • Fig. 3 is a cross-sectional view along line A-A in Fig. 1;
  • FIG4 is an enlarged schematic diagram of part B in FIG3 ;
  • FIG. 5 is a schematic diagram of the three-dimensional structure of the first elastic member of the multifunctional sound-generating device of the present invention.
  • the present invention provides a multifunctional sound-generating device 100. Please refer to FIGS. 1-5 at the same time.
  • the multifunctional sound-generating device 100 includes a housing 200 having a receiving space 201 , and a sound-generating unit 300 and a motor assembly 400 fixedly received in the receiving space 201 .
  • the housing 200 includes a bottom wall 202 and a side wall 203 extending from the periphery of the bottom wall 202.
  • the bottom wall 202 and the side wall 203 together enclose the receiving space 201.
  • the housing 200 is not limited thereto, and the housing 200 may also be integrally formed.
  • the sound-generating unit 300 includes a basin frame 1 , a vibration system 2 fixed to the basin frame 1 , a magnetic circuit system 3 having a magnetic gap 30 , and a first elastic member 4 suspending the magnetic circuit system 3 in the receiving space 201 .
  • the vibration system 2 vibrates and generates sound along a first direction under the drive of the magnetic circuit system 3.
  • the first direction Z is the thickness direction of the sound-generating monomer 300.
  • the vibration system 2 includes a diaphragm 21 fixed to the basin frame 1 , a voice coil 22 driving the diaphragm 21 to produce sound, a frame 23 fixed to the diaphragm 21 , and an elastic support member 24 spaced apart from the diaphragm 21 .
  • the voice coil 22 is inserted into the magnetic gap 30 to drive the diaphragm 21 to vibrate and generate sound along a first direction Z.
  • the voice coil 22 is suspended in the magnetic gap 30 through the frame 23 .
  • the arrangement of the elastic support member 23 can achieve a good effect of preventing the lateral swing of the voice coil 22 during vibration, thereby making the multifunctional sound-generating device 100 stable.
  • the elastic support member 23 can be directly fixed to the voice coil 22.
  • the elastic support member 24 is fixed to the basin frame 1; the other end of the elastic support member is fixed to the frame 23.
  • the setting of the elastic support member 24 can achieve a good effect of preventing the lateral swing of the voice coil 22 when it vibrates, and increase the vibration performance of the voice coil 22, so that the multifunctional sound-generating device 100 has good stability.
  • the elastic support member 24 is a flexible circuit board, which is used to supply power to the voice coil 22 and prevent the lead of the voice coil 22 from being disconnected, so that the multifunctional sound-generating device 100 has good stability.
  • the sound-emitting unit 300 is rectangular, and the elastic support members 24 include two elastic support members 24 , which are respectively located on opposite sides of the short axis of the magnetic circuit system 3 .
  • the frame 23 is made of metal material to realize the rigid connection between the dome of the diaphragm 21 and the voice coil 22 .
  • the magnetic circuit system 3 drives the vibration system 2 to vibrate and produce sound.
  • the magnetic circuit system 3 is provided with a clearance groove 301 formed by being recessed along the first direction Z.
  • the clearance groove 301 is arranged at the center position of the magnetic circuit system 3.
  • the motor assembly 400 is accommodated in the clearance groove 301. Since there are fewer magnetic lines of force in the middle area of the magnetic circuit system 3, this structure improves the utilization rate of the magnetic energy product of the magnetic circuit system 3 after the clearance groove 301 is arranged in the middle area of the magnetic circuit system 3, so that the acoustic performance of the multifunctional sound-generating device 100 is excellent.
  • the magnetic circuit system 3 includes a yoke 31 , a main magnetic circuit 32 , an auxiliary magnetic circuit 33 and a top magnetic steel 34 .
  • the yoke 31 is spaced apart from the housing 200 and is located at a side of the magnetic circuit system 3 away from the vibration system 2 .
  • a yoke center hole 310 is provided at the center of the yoke 31 , and the yoke center hole 310 is communicated with the receiving space 201 .
  • the main magnetic circuit 32 is fixed to the yoke 31 and is disposed around the yoke center hole 310 .
  • the main magnetic circuit 32 is annular and encloses a guide space 320.
  • the guide space 320 is connected to the center hole 310 of the yoke.
  • the annular main magnetic circuit 32 is conducive to increasing the space of the magnetic gap 30 of the magnetic circuit system 3 and improving the acoustic performance of the multifunctional sound-generating device 100.
  • the guide space 320 is connected to the center hole 310 of the yoke and together encloses the clearance groove 301.
  • the guide space 320 is used to accommodate the motor assembly 400. This structure allows the motor assembly 400 to be installed in the guide space 320, thereby reducing the overall thickness of the multifunctional sound-generating device 100, which is conducive to the lightweight application of the multifunctional sound-generating device 100.
  • the main magnetic circuit 32 includes an annular first main magnetic steel 321 fixed to the magnetic yoke 31 , an annular main pole core 322 stacked and fixed to the first main magnetic steel 321 , and an annular second main magnetic steel 323 stacked and fixed to the main pole core 322 .
  • the auxiliary magnetic circuit 33 is fixed to the yoke 31 .
  • the secondary magnetic circuit 33 includes an annular secondary magnetic steel 331 fixed to the magnetic yoke 31 and an annular secondary pole core 332 stacked and fixed to the secondary magnetic steel 331 .
  • the secondary magnetic circuit 33 surrounds the main magnetic circuit 32 and is spaced apart from the main magnetic circuit 32 to form the magnetic gap 30 .
  • the secondary pole core 332 and the main pole core 322 are spaced apart to form the magnetic gap 30.
  • the magnetic yoke 31, the main pole core 322 and the secondary pole core 332 are all made of strong magnetic conductive materials. This structure is conducive to enhancing the magnetic driving force of the magnetic circuit system 3.
  • the top magnetic steel 34 is stacked and fixed on the side of the main magnetic circuit 32 close to the vibration system 2.
  • the top magnetic steel 34 completely covers the guide space 320.
  • the main magnetic circuit 32, the top magnetic steel 34 and the magnetic yoke 31 together form the clearance groove 301.
  • the diaphragm 21 is annular.
  • the diaphragm 21 is arranged around the top magnetic steel 34.
  • the outer side of the diaphragm 21 is fixed to the basin frame 1; the inner side of the diaphragm 21 is fixed to the main magnetic circuit 32 and/or the top magnetic steel 34.
  • This structure is fixed to the magnetic circuit system 3 by the diaphragm 21, so that the overall thickness of the multifunctional sound-generating device 100 is small, which is conducive to the lightweight application of the multifunctional sound-generating device 100.
  • One end of the first elastic member 4 is fixed to the basin frame 1 ; the other end of the first elastic member 4 is elastically connected to the magnetic circuit system 3 .
  • the voice coil 22 is inserted into the magnetic gap 30 to drive the magnetic circuit system 3 to vibrate along the first direction Z, so as to drive the sound-emitting monomer 300 to vibrate along the first direction Z.
  • the magnetic circuit system 3 is suspended in the receiving space 201 by the first elastic member 4, so that the sound-emitting monomer 300 can vibrate along the first direction Z.
  • the first elastic member 4 includes a first section 41 fixed to the basin frame 1, a second section 42 bent and extended from the first section 41 toward the direction of the yoke 31, a third section 43 fixed to the yoke 31, and an elastic arm 44 elastically connecting the second section 42 and the third section 43 respectively.
  • One end of the second elastic member 6 is fixed to the shell 200.
  • the other end of the second elastic member 6 is fixed to the first section 41.
  • the motor assembly 400 includes a stator unit 5 received in the clearance groove 301 and a second elastic member 6 for suspending the sound-emitting unit 300 in the receiving space 201 .
  • the stator unit 5 is fixed to the side of the housing 200 away from the vibration system 2.
  • the stator unit 5 is spaced apart from the magnetic circuit system 3 and drives the magnetic circuit system 3 to vibrate along the second direction Y, so as to drive the sound-emitting unit 300 to vibrate along the second direction Y.
  • the first direction Z and the second direction Y are perpendicular to each other.
  • the sound unit 300 is rectangular and the basin frame 1 is rectangular.
  • the second direction Y is the direction of the long axis of the basin frame 1.
  • the direction of the short axis of the basin frame 1 is the third direction X.
  • the third direction X, the first direction Z and the second direction Y are perpendicular to each other.
  • the stator unit 5 includes an iron core 51 fixed to the housing 200 and a coil 52 wound around the iron core 51.
  • the iron core 51 is fixed to the housing 200 and passes through the yoke center hole 310 and is at least partially received in the guide space 320.
  • the coil 52 is spaced apart from the main magnetic circuit 32 and the top magnetic steel 34 respectively and drives the magnetic circuit system 3 to vibrate along the second direction Y, so as to drive the sound unit 300 to vibrate along the second direction Y.
  • the second elastic members 6 include two, and the two second elastic members 6 are respectively located on two opposite sides of the short axis of the sound-emitting unit 300 .
  • the principle that the multifunctional sound-generating device 100 of the present invention can realize the vibration function in two directions is as follows:
  • the magnetizing directions of the first main magnetic steel 321 , the second main magnetic steel 323 , the auxiliary magnetic steel 331 and the top magnetic steel 34 are all along the first direction Z.
  • the magnetizing directions of the first main magnetic steel 321 are opposite to the magnetizing directions of the second main magnetic steel 323 and the auxiliary magnetic steel 331 .
  • the magnetic pole of the first main magnetic steel 321 close to the main pole core 322 is the same as the magnetic pole of the second main magnetic steel 323 close to the main pole core 322 .
  • the magnetic pole of the first main magnetic steel 321 close to the main pole core 322 is opposite to the magnetic pole of the auxiliary magnetic steel 331 close to the auxiliary pole core 332 .
  • the top magnetic steel 34 is a multi-pole magnetization structure including a plurality of magnetization directions.
  • the plurality of magnetization directions are opposite to each other in sequence along the second direction Y.
  • the magnetic pole of the top magnetic steel 34 close to the second main magnetic steel 323 is opposite to the magnetic pole of the second main magnetic steel 323 close to the top magnetic steel 34 .
  • the magnetic pole of the first main magnetic steel 321 close to the main pole core 322 is an S pole; the magnetic pole of the first main magnetic steel 321 away from the main pole core 322 is an N pole.
  • the magnetic pole of the second main magnetic steel 323 close to the main pole core 322 is also an S pole; the magnetic pole of the second main magnetic steel 323 away from the main pole core 322 is also an N pole.
  • the magnetic pole of the auxiliary magnetic steel 331 close to the auxiliary pole core 332 is an N pole; the magnetic pole of the auxiliary magnetic steel 331 away from the auxiliary pole core 332 is an S pole.
  • the magnetic pole of the top magnetic steel 34 close to the second main magnetic steel 323 is an S pole.
  • the magnetic lines of force of the first main magnetic steel 321 sequentially pass through the yoke 31, the auxiliary magnetic steel 331, the auxiliary pole core 332, the main pole core 322 and the first main magnetic steel 321 to form a magnetic circuit.
  • a driving force F1 is generated along the first direction Z.
  • the driving force F1 along the first direction Z drives the magnetic circuit system 3 to reciprocate in the first direction Z.
  • the iron core 51 When the coil 52 is energized, the iron core 51 is polarized to an N pole and an S pole along the second direction Y.
  • the polarized iron core 51 interacts with the magnetic poles at both ends of the adjacent iron core 51 in the top magnetic steel 34 to form an attractive force and a repulsive force, and the directions of the attractive force and the repulsive force are consistent, forming a driving force F2 along the second direction Y.
  • the driving force F2 along the second direction Y drives the sound unit 300 to reciprocate in the second direction Y.
  • the diaphragm 21 of the sound-emitting unit 300 provides a stiffness K1, and the stiffness K1 is used to provide elastic support for the voice coil 22, thereby forming the vibration system 2 for vibrating and generating sound, and having a frequency F01.
  • the first elastic member 4 provides a stiffness KZ along the first direction Z, and provides elastic support for the magnetic circuit system 3, forming a vibration system in which the multifunctional sound-generating device 100 of the present invention reciprocates along the first direction Z and has a frequency F0z
  • the second elastic member 6 provides stiffness Ky along the second direction Y to provide support for the sound unit 300 as a whole.
  • the multifunctional sound device 100 of the present invention is a vibration system that reciprocates along the second direction Y and has a frequency F0y.
  • the driving force F1 formed by the voice coil 22 being energized is a pair of interacting reaction forces, and the two forces are always equal.
  • the driving force F2 formed by the coil 52 acts on the entire sound-generating unit 300.
  • the operating frequency of the driving force F2 is close to the frequency F0y, it will cause the system to resonate in the second direction Y, and the multifunctional sound-generating device 100 of the present invention will reciprocate along the second direction Y to form a Y-axis motor.
  • the vibration system 2 formed by the diaphragm 21 and the voice coil 22 will cause resonance in the first direction Z, that is, the sound-emitting unit 300 vibrates and makes sound, working as a speaker.
  • the magnetic circuit system 3 When the working frequency of the driving force F1 is close to the frequency F0z, the magnetic circuit system 3 will be caused to resonate in the first direction Z, and the multifunctional sound-generating device 100 will reciprocate along the first direction Z, forming a Z-axis motor.
  • the operating frequency of the sound unit 300 is generally high, and the operating frequency of the motor assembly 400 is low, that is, the frequency F01 is much larger than the frequency F0z, there is no risk of mutual interference between the sound unit 300 and the motor assembly 400.
  • the multifunctional sound-generating device of the present invention is provided with a clearance groove at the center position of the magnetic circuit system. Since the magnetic lines of force in the middle area of the magnetic circuit system are less, the structure improves the utilization rate of the magnetic energy product of the magnetic circuit system after the clearance groove is provided in the middle area of the magnetic circuit system, so that the acoustic performance of the multifunctional sound-generating device is excellent; the motor assembly is accommodated in the clearance groove, so that the overall thickness of the multifunctional sound-generating device is small, which is conducive to the lightweight application of the multifunctional sound-generating device; one end of the first elastic member provided in the sound-generating unit is fixed to the basin frame, and the other end of the first elastic member is elastically connected to the magnetic circuit system.
  • the magnetic circuit system When the voice coil is inserted into the magnetic gap, the magnetic circuit system is driven to vibrate in the first direction to drive the sound-generating unit to vibrate in the first direction; the motor assembly is provided with a stator unit accommodated in the clearance groove and a second elastic member suspending the sound-generating unit in the accommodation space; and the stator unit is fixed to the side of the housing away from the vibration system, the stator unit is spaced from the magnetic circuit system and the magnetic circuit system is driven to vibrate to drive the sound-generating unit to vibrate in the second direction.
  • This structure enables the multifunctional sound-generating device of the present invention to vibrate in the first direction and the second direction respectively. More preferably, the first direction and the second direction are perpendicular to each other.
  • the stator unit of the motor assembly When the motor assembly drives the sound-generating unit to vibrate in the second direction, the stator unit of the motor assembly has a smaller effect on the driving force of the magnetic circuit system of the sound-generating unit in the first direction, and there is less mutual interference; when the voice coil drives the sound-generating unit to vibrate in the first direction, the magnetic circuit system can be reused.
  • This structure makes the multifunctional sound-generating device of the present invention small in size, and can achieve excellent acoustic performance and excellent vibration performance at the same time.

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Abstract

本发明提供了一种多功能发声器件，其包括壳体、发声单体和马达组件，发声单体包括盆架、振动系统、磁路系统和第一弹性件，振动系统包括振膜和音圈，音圈驱动振膜沿第一方向振动发声；第一弹性件的一端固定于盆架，第一弹性件的另一端弹性连接于磁路系统；音圈驱动磁路系统沿第一方向振动，以带动发声单体沿第一方向振动；磁路系统设有让位槽，马达组件包括收容于让位槽内的定子单元和第二弹性件；定子单元固定于壳体，定子单元与磁路系统间隔并驱动磁路系统振动，以带动发声单体沿第二方向振动；其中，第一方向与第二方向互相垂直。与相关技术相比，本发明的多功能发声器件可实现两个方向上的振动功能且体积小、声学性能优且振动性能优。

Description

多功能发声器件 技术领域
本发明涉及电声转换领域，尤其涉及一种运用于电子音箱产品的多功能发声器件。
 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。目前，手机的功能极其多样，高品质的音乐功能和振动功能，因此，用于具有振动功能和播放声音的多功能发声器件被大量应用到现在的智能移动设备之中。
相关技术的所述多功能发声器件包括壳体和收容于所述壳体内的发声单体和马达组件，所述发声单体包括盆架以及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；所述马达组件贴设于所述磁路系统远离振动系统的一侧。
然而，相关技术中所述多功能发声器件中的所述发声单体和所述马达组件可独立控制，但是由于所述马达组件叠设于所述发声单体的下方，造成所述多功能发声器件的厚度增加，实现所述多功能发声器件轻薄化较为困难。另外，所述发声单体和所述马达组件的各自的磁钢不在一个平面上，操作各自的磁场驱动力相互干扰和影响，使得所述多功能发声器件中的磁钢数量较多，造成体积大而无法做到小型化，从而使得所述多功能发声器件的声学性能和振动性能较差。另外，相关技术中所述多功能发声器件的振动方向一般与所述发声单体的振膜的振动方向垂直，只能实现一个方向的振动。
因此，实有必要提供一种新的多功能发声器件解决上述技术问题。
 技术问题
本发明的目的在于提供一种可实现两个方向上的振动功能且体积小、声学性能优且振动性能优的多功能发声器件。
 技术解决方案
为了达到上述目的，本发明提供了一种多功能发声器件，其包括具有收容空间的壳体和固定收容于所述收容空间内的发声单体和马达组件，所述发声单体包括盆架以及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，所述振动系统包括固定于所述盆架的振膜和驱动振膜发声的音圈，所述音圈插入所述磁间隙驱动所述振膜沿第一方向振动发声；所述发声单体还包括将所述磁路系统悬置于所述收容空间内的第一弹性件；所述第一弹性件的一端固定于所述盆架，所述第一弹性件的另一端弹性连接于所述磁路系统；所述音圈插入所述磁间隙驱动所述磁路系统沿所述第一方向振动，以带动所述发声单体沿第一方向振动；所述磁路系统设有沿所述第一方向凹陷形成的让位槽，所述马达组件包括收容于所述让位槽内的定子单元和将所述发声单体悬置于所述收容空间内的第二弹性件；所述定子单元固定于所述壳体，所述定子单元与所述磁路系统间隔并驱动所述磁路系统沿第二方向振动，以带动所述发声单体沿所述第二方向振动；其中，所述第一方向与所述第二方向互相垂直。
优选的，所述磁路系统包括磁轭、分别固定于所述磁轭的主磁路、环绕所述主磁路并与所述主磁路间隔形成所述磁间隙的副磁路以及叠设固定于所述主磁路靠近所述振动系统一侧的顶磁钢；所述磁轭与所述壳体间隔设置并位于所述磁路系统远离所述振动系统一侧，所述第一弹性件的另一端弹性连接于所述磁轭，所述磁轭的中心位置设有贯穿其上的磁轭中心孔；所述主磁路呈环状并围成导向空间，所述主磁路环绕所述磁轭中心孔设置，所述导向空间与所述磁轭中心孔连通，所述顶磁钢完全覆盖所述导向空间，述主磁路、所述顶磁钢及所述磁轭共同围成所述让位槽。
优选的，所述振膜呈环状，所述振膜环绕所述顶磁钢设置，所述振膜的外侧固定于所述盆架，所述振膜的内侧固定于所述主磁路和/或所述顶磁钢。
优选的，所述主磁路包括固定于所述磁轭的呈环状的第一主磁钢、叠设固定于所述第一主磁钢的呈环状的主极芯以及叠设固定于所述主极芯的呈环状的第二主磁钢；所述副磁路包括固定于所述磁轭的呈环状的副磁钢和叠设固定于所述副磁钢的呈环状的副极芯；所述副极芯与所述主极芯间隔形成所述磁间隙。
优选的，所述第一主磁钢的充磁方向、所述第二主磁钢的充磁方向、所述副磁钢的充磁方向以及所述顶磁钢的充磁方向均沿所述第一方向，且所述第一主磁钢的充磁方向分别与所述第二主磁钢的充磁方向和所述副磁钢的充磁方向相反；所述第一主磁钢靠近所述主极芯一侧的磁极与所述第二主磁钢靠近所述主极芯一侧的磁极相同，所述第一主磁钢靠近所述主极芯一侧的磁极与所述副磁钢靠近所述副极芯一侧的磁极相反。
优选的，所述顶磁钢为包括多个充磁方向的多极充磁结构，多个所述充磁方向沿所述第二方向依次相反，且所述顶磁钢靠近所述第二主磁钢一侧的磁极与所述第二主磁钢靠近所述顶磁钢一侧的磁极相反。
优选的，所述第一弹性件包括固定于所述盆架的第一段、由所述第一段向所述磁轭的方向弯折延伸的第二段、固定于所述磁轭的第三段以及分别将所述第二段和所述第三段弹性连接的弹臂；所述第二弹性件的一端固定于所述壳体，所述第二弹性件的另一端固定于所述第一段。
优选的，所述发声单体呈矩形，所述第二弹性件包括两个，两个所述第二弹性件分别位于所述发声单体的短轴的相对两侧。
优选的，所述定子单元包括固定于所述壳体的铁芯和绕设于所述铁芯的线圈，所述铁芯固定于所述壳体并穿过所述磁轭中心孔后至少部分收容于所述导向空间；所述线圈分别与所述主磁路和所述顶磁钢间隔并驱动所述磁路系统沿所述第二方向振动，以带动所述发声单体沿所述第二方向振动。
优选的，所述振动系统还包括固定于所述振膜的骨架和与所述振膜间隔设置的弹性支撑件，所述音圈通过所述骨架悬置于所述磁间隙内，所述弹性支撑件的一端固定于所述盆架，所述弹性支撑件的另一端固定于所述骨架。
 有益效果
与相关技术相比，本发明的多功能发声器件通过磁路系统的中心位置设置一个沿所述第一方向凹陷形成的所述让位槽，由于所述磁路系统中间区域磁力线较少，该结构将所述磁路系统中间区域的设置所述让位槽后，提升了所述磁路系统的磁能积利用率，使得所述多功能发声器件的声学性能优；将所述马达组件收容于所述让位槽内，从而使得所述多功能发声器件的整体厚度小，有利于所述多功能发声器件的轻薄化应用；所述发声单体设置的所述第一弹性件的一端固定于所述盆架，所述第一弹性件的另一端弹性连接于所述磁路系统。当所述音圈插入所述磁间隙驱动所述磁路系统沿第一方向振动，以带动所述发声单体沿第一方向振动；所述马达组件设置收容于所述让位槽内的定子单元和将所述发声单体悬置于所述收容空间内的第二弹性件；并将所述定子单元固定于所述壳体远离所述振动系统一侧，将所述定子单元与所述磁路系统间隔并驱动所述磁路系统第二方向振动，以带动所述发声单体沿所述第二方向振动。该结构使得本发明的多功能发声器件分别在所述第一方向和所述第二方向实现振动。更优的是，所述第一方向与所述第二方向互相垂直，当所述马达组件带动所述发声单体沿第二方向振动时，使得所述马达组件的定子单元对所述发声单体的磁路系统在所述第一方向的驱动力影响较小，相互干扰少；当所述音圈以带动所述发声单体沿第一方向振动时，可以复用所述磁路系统，该结构使得本发明的多功能发声器件体积小，同时可以实现声学性能优且振动性能优。
 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为本发明多功能发声器件的立体结构示意图；
图2为本发明多功能发声器件的部分立体结构分解图；
图3为沿图1中A-A线的剖示图；
图4为图3中B部分的放大示意图；
图5为本发明多功能发声器件的第一弹性件的立体结构示意图。
 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。
本发明提供了一种多功能发声器件100。请同时参阅图1-5，
具体的，所述多功能发声器件100包括具有收容空间201的壳体200和固定收容于所述收容空间201内的发声单体300和马达组件400。
所述壳体200包括底壁202和由所述底壁202的周缘弯折延伸的侧壁203。所述底壁202和所述底壁202共同围成所述收容空间201。当然，不限于此，所述壳体200也可以一体成型。
所述发声单体300包括盆架1、分别固定于所述盆架1的振动系统2和具有磁间隙30的磁路系统3以及将所述磁路系统3悬置于所述收容空间201内的第一弹性件4。
所述振动系统2在所述磁路系统3的驱动下沿第一方向振动发声。本实施例中，所述第一方向Z为所述发声单体300的厚度方向。
所述振动系统2包括固定于所述盆架1的振膜21和驱动振膜21发声的音圈22、固定于所述振膜21的骨架23以及与所述振膜21间隔设置的弹性支撑件24。
所述音圈22插入所述磁间隙30以驱动所述振膜21沿第一方向Z振动发声。所述音圈22通过所述骨架23悬置于所述磁间隙30内。
所述弹性支撑件23的设置可达到防止所述音圈22振动时的横向摆动效果好，从而使得所述多功能发声器件100稳定性好。当然，不限于此，在另一个实施例中，所述弹性支撑件23可直接固定于所述音圈22。
所述弹性支撑件24的一端固定于所述盆架1；所述弹性支撑件的另一端固定于所述骨架23。所述弹性支撑件24的设置可达到防止所述音圈22振动时的横向摆动效果好，并增加所述音圈22的振动性能，从而使得所述多功能发声器件100稳定性好。其中，所述弹性支撑件24为柔性电路板，用于给音圈22供电，防止所述音圈22的引线断开，从而使得所述多功能发声器件100稳定性好。
本实施方式中，所述发声单体300呈矩形，所述弹性支撑件24包括两个，两个所述弹性支撑件24分别位于所述磁路系统3的短轴的相对两侧。
本实施方式中，所述骨架23为金属材料制成。用于实现所述振膜21的球顶与所述音圈22刚性连接。
所述磁路系统3驱动所述振动系统2振动发声。所述磁路系统3设有沿所述第一方向Z凹陷形成的让位槽301。本实施方式中，所述让位槽301设置于所述磁路系统3的中心位置。所述马达组件400收容于所述让位槽301内。由于所述磁路系统3中间区域磁力线较少，该结构将所述磁路系统3中间区域的设置所述让位槽301后，提升了所述磁路系统3的磁能积利用率，使得所述多功能发声器件100的声学性能优。
所述磁路系统3包括磁轭31、主磁路32、副磁路33以及顶磁钢34。
所述磁轭31与所述壳体200间隔设置并位于所述磁路系统3远离所述振动系统2一侧。所述磁轭31的中心位置设有贯穿其上的磁轭中心孔310。所述磁轭中心孔310与所述收容空间201连通。
所述主磁路32固定于所述磁轭31并环绕所述磁轭中心孔310设置。
所述主磁路32呈环状并围成导向空间320。所述导向空间320与所述磁轭中心孔310连通。呈环状的所述主磁路32有利于增大所述磁路系统3的所述磁间隙30的空间，提高所述多功能发声器件100的声学性能。所述导向空间320与所述磁轭中心孔310连通并共同围成所述让位槽301。所述导向空间320用于收容所述马达组件400，该结构使得所述马达组件400安装于所述导向空间320内，从而使得所述多功能发声器件100的整体厚度小，有利于所述多功能发声器件100的轻薄化应用。
具体的，所述主磁路32包括固定于所述磁轭31的呈环状的第一主磁钢321、叠设固定于所述第一主磁钢321的呈环状的主极芯322以及叠设固定于所述主极芯322的呈环状的第二主磁钢323。
所述副磁路33固定于所述磁轭31。
具体的，所述副磁路33包括固定于所述磁轭31的呈环状的副磁钢331和叠设固定于所述副磁钢331的呈环状的副极芯332。
所述副磁路33环绕所述主磁路32并与所述主磁路32间隔形成所述磁间隙30。
所述副极芯332与所述主极芯322间隔形成所述磁间隙30。本实施方式中，所述磁轭31、所述主极芯322以及所述副极芯332均为强导磁材料制成。该结构有利于增强所述磁路系统3的磁驱动力。
所述顶磁钢34叠设固定于所述主磁路32靠近所述振动系统2一侧。所述顶磁钢34完全覆盖所述导向空间320。所述主磁路32、所述顶磁钢34及所述磁轭31共同围成所述让位槽301。
本实施方式中，所述振膜21呈环状。所述振膜21环绕所述顶磁钢34设置。所述振膜21的外侧固定于所述盆架1；所述振膜21的内侧固定于所述主磁路32和/或所述顶磁钢34。该结构通过所述振膜21固定于所述磁路系统3，使得从而使得所述多功能发声器件100的整体厚度小，有利于所述多功能发声器件100的轻薄化应用。
所述第一弹性件4的一端固定于所述盆架1；所述第一弹性件4的另一端弹性连接于所述磁路系统3。
所述音圈22插入所述磁间隙30驱动所述磁路系统3沿第一方向Z振动，以带动所述发声单体300沿第一方向Z振动。所述发声单体300沿第一方向Z振动时，通过所述第一弹性件4将所述磁路系统3悬置于所述收容空间201内，实现所述发声单体300沿第一方向Z振动的功能。
具体的，所述第一弹性件4包括与固定于所述盆架1的第一段41、由所述第一段41向所述磁轭31的方向弯折延伸的第二段42、固定于所述磁轭31的第三段43以及分别将所述第二段42和所述第三段43弹性连接的弹臂44。所述第二弹性件6的一端固定于所述壳体200。所述第二弹性件6的另一端固定于所述第一段41。该结构一方面实现将所述磁路系统3悬置于所述收容空间201内，另一方面，可以使得所述多功能发声器件100的整体厚度小，有利于所述多功能发声器件100的轻薄化应用。
所述马达组件400包括收容于所述让位槽301内的定子单元5和将所述发声单体300悬置于所述收容空间201内的第二弹性件6。
所述定子单元5固定于所述壳体200远离所述振动系统2一侧。所述定子单元5与所述磁路系统3间隔并驱动所述磁路系统3沿第二方向Y振动,以带动所述发声单体300沿所述第二方向Y振动。
其中，所述第一方向Z与所述第二方向Y互相垂直。本实施方式中，所述发声单体300呈矩形，所述盆架1呈矩形。所述第二方向Y为所述盆架1的长轴的方向。另外，所述盆架1的短轴的方向为第三方向X。所述第三方向X、所述第一方向Z以及所述第二方向Y互相垂直。
所述定子单元5包括固定于所述壳体200的铁芯51和绕设于所述铁芯51的线圈52。所述铁芯51固定于所述壳体200并穿过所述磁轭中心孔310后至少部分收容于所述导向空间320。
所述线圈52分别与所述主磁路32和所述顶磁钢34间隔并驱动所述磁路系统3沿所述第二方向Y振动，以带动所述发声单体300沿所述第二方向Y振动。
本实施方式中，所述第二弹性件6包括两个。两个所述第二弹性件6分别位于所述发声单体300的短轴的相对两侧。
本发明的多功能发声器件100可实现两个方向上的振动功能的原理为：
所述第一主磁钢321的充磁方向、所述第二主磁钢323的充磁方向、所述副磁钢331的充磁方向以及所述顶磁钢34的充磁方向均沿所述第一方向Z。且所述第一主磁钢321的充磁方向分别与所述第二主磁钢323的充磁方向和所述副磁钢331的充磁方向相反。
所述第一主磁钢321靠近所述主极芯322一侧的磁极与所述第二主磁钢323靠近所述主极芯322一侧的磁极相同。
所述第一主磁钢321靠近所述主极芯322一侧的磁极与所述副磁钢331靠近所述副极芯332一侧的磁极相反。
所述顶磁钢34为包括多个充磁方向的多极充磁结构。多个所述充磁方向沿所述第二方向Y依次相反。
且所述顶磁钢34靠近所述第二主磁钢323一侧的磁极与所述第二主磁钢323靠近所述顶磁钢34一侧的磁极相反。
请参考图4，本实施方式中，所述第一主磁钢321靠近所述主极芯322一侧的磁极为S极；所述第一主磁钢321远离所述主极芯322一侧的磁极为N极。所述第二主磁钢323靠近所述主极芯322一侧的磁极相同为S极；所述第二主磁钢323远离所述主极芯322一侧的磁极相同为N极。所述副磁钢331靠近所述副极芯332一侧的磁极为N极；所述副磁钢331远离所述副极芯332一侧的磁极为S极。所述顶磁钢34靠近所述第二主磁钢323一侧的磁极为S极。
所述第一主磁钢321的磁力线依次经过所述磁轭31、所述副磁钢331、所述副极芯332、所述主极芯322以及所述第一主磁钢321形成磁回路。当所述音圈22通电时形成沿所述第一方向Z的驱动力F1。沿所述第一方向Z的驱动力F1驱动所述磁路系统3在所述第一方向Z上往复振动。
当所述线圈52通电时，将所述铁芯51沿所述第二方向Y极化为N极和S极。被极化的所述铁芯51与所述顶磁钢34中相邻所述铁芯51的两端的磁极相互作用形成吸力和斥力，且吸力和斥力的方向一致，形成沿所述第二方向Y的驱动力F2。沿所述第二方向Y的驱动力F2驱动所述发声单体300在所述第二方向Y上往复振动。
在所述发声单体300的所述振膜21提供刚度K1，刚度K1用于对所述音圈22提供弹性支撑，形成用于振动发声的所述振动系统2，并具有频率F01。
所述第一弹性件4在沿所述第一方向Z提供刚度KZ，对所述磁路系统3提供弹性支承，形成本发明的多功能发声器件100在沿所述第一方向Z进行往复振动的振动系统，并具有频率F0z
所述第二弹性件6在沿所述第二方向Y提供刚度Ky，对所述发声单体300整体提供支承，本发明的多功能发声器件100在沿所述第二方向Y进行往复振动的振动系统，并具有频率F0y。
对于所述磁路系统3和所述音圈22而言，所述音圈22通电形成的驱动力F1为一对相互作用的反力，二者恒相等。
所述线圈52形成的驱动力F2，驱动力F2作用于所述发声单体300整体。当驱动力F2的工作频率与频率F0y向近时，将引起系统在所述第二方向Y的共振，本发明的多功能发声器件100在沿所述第二方向Y进行往复振动的振动系统，即形成Y轴马达。
当驱动力F１的工作频率与频率F01向近时，将引起所述振膜21和所述音圈22形成的所述振动系统2在所述第一方向Z的共振，即所述发声单体300进行振动发声，作为扬声器工作。
当驱动力F１的工作频率与频率F0z向近时，将引起所述磁路系统3在所述第一方向Z的共振，多功能发声器件100在沿所述第一方向Z进行往复振动，即形成Ｚ轴马达。
由于所述发声单体300的工作频率普遍较高，而所述马达组件400的工作频率较低，即频率F01远远大于频率F0z，故而没有所述发声单体300和所述马达组件400相互干扰的风险。
与相关技术相比，本发明的多功能发声器件通过磁路系统的中心位置设置一个所述让位槽，由于所述磁路系统中间区域磁力线较少，该结构将所述磁路系统中间区域的设置所述让位槽后，提升了所述磁路系统的磁能积利用率，使得所述多功能发声器件的声学性能优；将所述马达组件收容于所述让位槽内，从而使得所述多功能发声器件的整体厚度小，有利于所述多功能发声器件的轻薄化应用；所述发声单体设置的所述第一弹性件的一端固定于所述盆架，所述第一弹性件的另一端弹性连接于所述磁路系统。当所述音圈插入所述磁间隙驱动所述磁路系统沿第一方向振动，以带动所述发声单体沿第一方向振动；所述马达组件设置收容于所述让位槽内的定子单元和将所述发声单体悬置于所述收容空间内的第二弹性件；并将所述定子单元固定于所述壳体远离所述振动系统一侧，将所述定子单元与所述磁路系统间隔并驱动所述磁路系统振动，以带动所述发声单体沿第二方向振动。该结构使得本发明的多功能发声器件分别在所述第一方向和所述第二方向实现振动。更优的是，所述第一方向与所述第二方向互相垂直，当所述马达组件带动所述发声单体沿第二方向振动时，使得所述马达组件的定子单元对所述发声单体的磁路系统在所述第一方向的驱动力影响较小，相互干扰少；当所述音圈以带动所述发声单体沿第一方向振动时，可以复用所述磁路系统，该结构使得本发明的多功能发声器件体积小，同时可以实现声学性能优且振动性能优。
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 (10)

  1. 一种多功能发声器件，其包括具有收容空间的壳体和固定收容于所述收容空间内的发声单体和马达组件，所述发声单体包括盆架以及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，所述振动系统包括固定于所述盆架的振膜和驱动振膜发声的音圈，所述音圈插入所述磁间隙以驱动所述振膜沿第一方向振动发声；其特征在于，
    所述发声单体还包括将所述磁路系统悬置于所述收容空间内的第一弹性件；所述第一弹性件的一端固定于所述盆架，所述第一弹性件的另一端弹性连接于所述磁路系统；所述音圈插入所述磁间隙驱动所述磁路系统沿所述第一方向振动，以带动所述发声单体沿第一方向振动；
    所述磁路系统设有沿所述第一方向凹陷形成的让位槽，所述马达组件包括收容于所述让位槽内的定子单元和将所述发声单体悬置于所述收容空间内的第二弹性件；所述定子单元固定于所述壳体，所述定子单元与所述磁路系统间隔并驱动所述磁路系统沿第二方向振动，以带动所述发声单体沿所述第二方向振动；其中，所述第一方向与所述第二方向互相垂直。
  2. 根据权利要求1所述的多功能发声器件，其特征在于，所述磁路系统包括磁轭、分别固定于所述磁轭的主磁路、环绕所述主磁路并与所述主磁路间隔形成所述磁间隙的副磁路以及叠设固定于所述主磁路靠近所述振动系统一侧的顶磁钢；
    所述磁轭与所述壳体间隔设置并位于所述磁路系统远离所述振动系统一侧，所述第一弹性件的另一端弹性连接于所述磁轭，所述磁轭的中心位置设有贯穿其上的磁轭中心孔；
    所述主磁路呈环状并围成导向空间，所述主磁路环绕所述磁轭中心孔设置，所述导向空间与所述磁轭中心孔连通，所述顶磁钢完全覆盖所述导向空间，所述主磁路、所述顶磁钢及所述磁轭共同围成所述让位槽。
  3. 根据权利要求2所述的多功能发声器件，其特征在于，所述振膜呈环状，所述振膜环绕所述顶磁钢设置，所述振膜的外侧固定于所述盆架，所述振膜的内侧固定于所述主磁路和/或所述顶磁钢。
  4. 根据权利要求2所述的多功能发声器件，其特征在于，所述主磁路包括固定于所述磁轭的呈环状的第一主磁钢、叠设固定于所述第一主磁钢的呈环状的主极芯以及叠设固定于所述主极芯的呈环状的第二主磁钢；所述副磁路包括固定于所述磁轭的呈环状的副磁钢和叠设固定于所述副磁钢的呈环状的副极芯；所述副极芯与所述主极芯间隔形成所述磁间隙。
  5. 根据权利要求4所述的多功能发声器件，其特征在于，所述第一主磁钢的充磁方向、所述第二主磁钢的充磁方向、所述副磁钢的充磁方向以及所述顶磁钢的充磁方向均沿所述第一方向，且所述第一主磁钢的充磁方向分别与所述第二主磁钢的充磁方向和所述副磁钢的充磁方向相反；所述第一主磁钢靠近所述主极芯一侧的磁极与所述第二主磁钢靠近所述主极芯一侧的磁极相同，所述第一主磁钢靠近所述主极芯一侧的磁极与所述副磁钢靠近所述副极芯一侧的磁极相反。
  6. 根据权利要求5所述的多功能发声器件，其特征在于，所述顶磁钢为包括多个充磁方向的多极充磁结构，多个所述充磁方向沿所述第二方向依次相反，且所述顶磁钢靠近所述第二主磁钢一侧的磁极与所述第二主磁钢靠近所述顶磁钢一侧的磁极相反。
  7. 根据权利要求2所述的多功能发声器件，其特征在于，所述第一弹性件包括固定于所述盆架的第一段、由所述第一段向所述磁轭的方向弯折延伸的第二段、固定于所述磁轭的第三段以及分别将所述第二段和所述第三段弹性连接的弹臂；所述第二弹性件的一端固定于所述壳体，所述第二弹性件的另一端固定于所述第一段。
  8. 根据权利要求1所述的多功能发声器件，其特征在于，所述发声单体呈矩形，所述第二弹性件包括两个，两个所述第二弹性件分别位于所述发声单体的短轴的相对两侧。
  9. 根据权利要求2所述的多功能发声器件，其特征在于，所述定子单元包括固定于所述壳体的铁芯和绕设于所述铁芯的线圈，所述铁芯固定于所述壳体并穿过所述磁轭中心孔后至少部分收容于所述导向空间；所述线圈分别与所述主磁路和所述顶磁钢间隔并驱动所述磁路系统沿所述第二方向振动，以带动所述发声单体沿所述第二方向振动。
  10. 根据权利要求1所述的多功能发声器件，其特征在于，所述振动系统还包括固定于所述振膜的骨架和与所述振膜间隔设置的弹性支撑件，所述音圈通过所述骨架悬置于所述磁间隙内，所述弹性支撑件的一端固定于所述盆架，所述弹性支撑件的另一端固定于所述骨架。
PCT/CN2022/144409 2022-12-19 2022-12-31 多功能发声器件 WO2024130791A1 (zh)

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