WO2024087296A1 - 多功能发声器件 - Google Patents

多功能发声器件 Download PDF

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Publication number
WO2024087296A1
WO2024087296A1 PCT/CN2022/134574 CN2022134574W WO2024087296A1 WO 2024087296 A1 WO2024087296 A1 WO 2024087296A1 CN 2022134574 W CN2022134574 W CN 2022134574W WO 2024087296 A1 WO2024087296 A1 WO 2024087296A1
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WO
WIPO (PCT)
Prior art keywords
magnetic circuit
fixed
vibration
sound
lower shell
Prior art date
Application number
PCT/CN2022/134574
Other languages
English (en)
French (fr)
Inventor
金鑫
张帆
宋威
令狐荣林
Original Assignee
瑞声光电科技(常州)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 瑞声光电科技(常州)有限公司 filed Critical 瑞声光电科技(常州)有限公司
Priority to US18/341,747 priority Critical patent/US20240147157A1/en
Publication of WO2024087296A1 publication Critical patent/WO2024087296A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04Plane diaphragms
    • H04R7/06Plane diaphragms comprising a plurality of sections or layers
    • 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
    • H04R9/025Magnetic circuit
    • 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
    • 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
    • H04R11/00Transducers of moving-armature or moving-core type
    • H04R11/02Loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00Loudspeakers
    • H04R2400/03Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00Loudspeakers
    • H04R2400/11Aspects regarding the frame of loudspeaker transducers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10General applications
    • H04R2499/11Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04Plane diaphragms

Definitions

  • the utility model relates to the field of electroacoustic conversion, in particular to a multifunctional sound-generating device.
  • the multifunctional sound-generating device of the related technology includes a shell, a sound-generating unit accommodated in the shell, and a motor assembly for generating vibration, wherein the sound-generating unit includes a basin frame, a vibration system, and a magnetic circuit system with a magnetic gap; the motor assembly mainly includes a vibration unit and an elastic part that elastically suspends the vibration unit in the shell, and the vibration unit mainly includes a driving coil.
  • the entire magnetic circuit system needs to be fixed in the housing.
  • the prior art multifunctional sound-generating device does not have a fixing method for the magnetic circuit system that can provide driving force for the driving coil and facilitate control of the magnetic gap.
  • the utility model aims to provide a multifunctional sound-generating device to solve the problem that the multifunctional sound-generating device in the prior art has no fixing method for the magnetic circuit system which can provide driving force for the driving coil and is conducive to controlling the magnetic gap.
  • the utility model provides a multifunctional sound-generating device, which comprises a lower shell, an upper shell which is covered on the lower shell and together forms a receiving space, and a sound-generating unit received in the receiving space, wherein the upper shell is provided with a sound outlet which runs through it;
  • the sound-generating unit comprises a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system having a magnetic gap and driving the vibration system to vibrate and generate sound;
  • the magnetic circuit system comprises a main magnetic circuit and a first secondary magnetic circuit and a second secondary magnetic circuit which respectively surround the main magnetic circuit and are separated from the main magnetic circuit to form the magnetic gap;
  • the first secondary magnetic circuit includes a first secondary magnetic steel and a first secondary pole core stacked and fixed to the first secondary magnetic steel, wherein the first secondary pole core fixes the first secondary magnetic steel to the lower shell; the main magnetic circuit is fixed to the lower shell;
  • the multifunctional sound-generating device also includes a motor assembly accommodated in the accommodation space;
  • the motor assembly includes a vibration unit arranged on a side of the magnetic circuit system away from the vibration system and an elastic member that elastically suspends the vibration unit in the accommodation space;
  • the vibration unit includes a drive coil, and the drive coil is fixedly connected to the second secondary magnetic circuit.
  • the first secondary pole core includes a stacked portion stacked and fixed on a side of the first secondary magnet close to the vibration system, and an extension portion formed by bending and extending the side of the stacked portion away from the main magnet toward the lower shell, the extension portion extends to a side of the lower shell opposite to the sound outlet and is fixedly connected thereto; the extension portion is spaced apart from the corresponding first secondary magnet.
  • the extension portion is a multi-layer stepped structure extending obliquely downward, and the step farthest from the stacked portion is fixed to the lower shell.
  • the first secondary pole core also includes a covering portion formed by bending and extending the stacked portion on opposite sides close to the two second secondary magnets in a direction away from the vibration system, and the covering portion is spaced apart from the first secondary magnet and is fixedly connected to the extension portion on one side close to the extension portion.
  • the magnetic circuit system is rectangular;
  • the main magnetic circuit includes a lower clamping plate fixed to the lower shell, a main magnetic steel stacked and fixed on the side of the lower clamping plate close to the vibration system, and a main pole core stacked and fixed on the side of the main magnetic steel close to the vibration system;
  • the first secondary magnetic steel includes two and respectively located on opposite sides of the short axis of the main magnetic steel, and the first secondary pole core also includes two and one first secondary pole core is stacked and fixed on one of the first secondary magnetic steels;
  • the second secondary magnetic circuit includes two second secondary magnetic steels respectively located on opposite sides of the long axis of the main magnetic steel and two second secondary pole cores respectively stacked on two sides of the second secondary magnetic steels close to the vibration system.
  • the driving coils include two and are respectively arranged on opposite sides of the lower clamping plate along the vibration direction of the vibration unit.
  • the vibration unit also includes a mass block
  • the elastic member is respectively fixed on opposite sides of the mass block along the vibration direction of the vibration unit, and the mass block has a mounting hole passing through it;
  • the lower clamping plate is fixed to a side of the lower shell opposite to the sound outlet through the mounting hole, and the second secondary magnet and the driving coil are fixedly connected to the mass block.
  • the elastic members include two and both are U-shaped structures, the two elastic members are centrally symmetrically arranged and are respectively located on opposite sides of the mass block along the vibration direction of the vibration unit, one end of the elastic member is fixed to the peripheral side of the lower shell or the upper shell, and the other end is fixed to the peripheral side of the mass block.
  • the motor assembly also includes a flexible conductive connector electrically connected to the drive coil, the flexible conductive connector including a fixed portion fixed to a side of the mass block away from the vibration system, an elastic arm formed by bending and extending one side of the fixed portion, and a penetration portion extending from the elastic arm to the outside of the accommodation space and passing through the lower shell and/or the upper shell.
  • a flexible conductive connector electrically connected to the drive coil, the flexible conductive connector including a fixed portion fixed to a side of the mass block away from the vibration system, an elastic arm formed by bending and extending one side of the fixed portion, and a penetration portion extending from the elastic arm to the outside of the accommodation space and passing through the lower shell and/or the upper shell.
  • the vibration system includes a diaphragm fixed to the basin frame and a voice coil inserted and suspended in the magnetic gap and driving the diaphragm to vibrate.
  • the side of the diaphragm away from the basin frame is fixed to the upper shell and arranged opposite to the sound outlet.
  • the multifunctional sound-generating device of the utility model fixes the main magnetic circuit to the lower shell, fixes the first secondary magnetic steel of the first secondary magnetic circuit to the lower shell by stacking and fixing the first secondary pole core thereon, and fixes the second secondary magnetic circuit to the driving coil, thereby realizing a fixing method in which the main magnetic circuit, the first secondary magnetic circuit and the second secondary magnetic circuit are respectively fixed to the lower shell or the upper shell. This is not only beneficial for controlling the magnetic gap, but also can improve the production accuracy and product consistency.
  • FIG1 is an exploded view of the entire structure of a multifunctional sound-generating device provided by an embodiment of the utility model
  • FIG2 is a partial structural exploded view of a multifunctional sound-generating device provided by an embodiment of the utility model
  • FIG3 is a schematic diagram of the three-dimensional structure of a multifunctional sound-generating device provided by an embodiment of the utility model
  • FIG4 is a cross-sectional view along line A-A in FIG3 .
  • 100 multifunctional sound-generating device; 1, shell; 11, lower shell; 111, protrusion; 12, upper shell; 2, sound-generating unit; 21, basin frame; 22, vibration system; 221, diaphragm; 222, voice coil; 223, skeleton; 224, elastic support component; 2241, auxiliary diaphragm; 2242, circuit board; 23, magnetic circuit system; 231, lower clamp; 232, main magnet; 233, first secondary magnet; 234, the first secondary magnet; Two secondary magnets; 235, first secondary pole core; 2351, stacked portion; 2352, extended portion; 2353, covering portion; 236, main pole core; 237, second secondary pole core; 3, motor assembly; 31, vibration unit; 311, drive coil; 312, mass block; 32, elastic member; 33, conductive connector; 331, fixing portion; 332, elastic arm; 333, penetration portion; 10, sound outlet; 20, magnetic gap; 30, mounting hole.
  • an embodiment of the utility model provides a multifunctional sound-emitting device 100, which includes a lower shell 11, an upper shell 12 which is covered on the lower shell 11 and together forms a receiving space, and a sound-emitting unit 2 and a motor assembly 3 received in the receiving space; the upper shell 12 is provided with a sound outlet 10 running through it.
  • the lower shell 11 and the upper shell 12 together form the housing 1 of the multifunctional sound-generating device 100 .
  • the sound unit 2 includes a basin frame 21, a vibration system 22 fixed to the basin frame 21, and a magnetic circuit system 23 having a magnetic gap 20 and driving the vibration system 22 to vibrate and generate sound.
  • the vibration system 22 includes a diaphragm 221 fixed to the basin frame 21 and a voice coil 222 inserted and suspended in the magnetic gap 20 and driving the diaphragm 221 to vibrate.
  • the side of the diaphragm 221 away from the basin frame 21 is fixed to the upper shell 12 and arranged opposite to the sound outlet 10.
  • the magnetic circuit system 23 includes a main magnetic circuit fixed to the lower shell 11, and a first secondary magnetic circuit and a second secondary magnetic circuit respectively surrounding the main magnetic circuit and separated from the main magnetic circuit to form a magnetic gap 20.
  • the main magnetic circuit is fixed to the lower shell 11;
  • the first secondary magnetic circuit includes a first secondary magnetic steel 233 and a first secondary pole core 235 stacked and fixed to the first secondary magnetic steel 233, and the first secondary pole core 235 fixes the first secondary magnetic steel 233 to the lower shell 11.
  • the magnetic field of the magnetic circuit system 23 can be enhanced by the first secondary pole core 235, and the first secondary magnetic steel 233 can be fixed to the lower shell 11 by the first secondary pole core 235.
  • the first secondary pole core 235 fixes the first secondary magnetic steel 233 to the side of the lower shell 11 facing the sound outlet 10 , which is equivalent to the first secondary pole core 235 fixing the first secondary magnetic steel 233 to the bottom or bottom surface of the lower shell 11 .
  • the magnetic circuit system is rectangular; the main magnetic circuit includes a lower clamping plate 231 fixed to the lower shell 11, a main magnetic steel 232 stacked and fixed on the side of the lower clamping plate 231 close to the vibration system 22, and a main pole core 236 stacked and fixed on the side of the main magnetic steel 232 close to the vibration system 22; the first auxiliary magnetic steel 233 includes two and is respectively located on the opposite sides of the short axis of the main magnetic steel 232, and the first auxiliary pole core 235 also includes two and one first auxiliary pole core 235 is stacked and fixed on a first auxiliary magnetic steel 233; the second auxiliary magnetic circuit includes two second auxiliary magnetic steels 234 respectively located on the opposite sides of the long axis of the main magnetic steel 232 and two second auxiliary pole cores 237 respectively stacked on the two second auxiliary magnetic steels 234 close to the vibration system 22.
  • the motor assembly 3 includes a vibration unit 31 arranged on a side of the magnetic circuit system 23 away from the diaphragm 221 and an elastic member 32 that elastically suspends the vibration unit 31 in the accommodating space; the vibration unit 31 includes a driving coil 311 fixedly connected to the second secondary magnetic steel 234 in the second secondary magnetic circuit.
  • the vibration principle of the motor assembly 3 is: the driving coil 311 is in the magnetic field range of the main magnet 232 and the first secondary magnet 233 fixed to the shell 1, and interacts with each other to generate an electromagnetic field. At this time, by controlling the current direction of the driving coil 311, the mutual driving force with the main magnet 232 and the first secondary magnet 233 can be achieved. Because the main magnet 232 and the first secondary magnet 233 are fixed to the shell 1 and cannot move, as a stator, the driving coil 311 is suspended in the receiving space by the elastic member 32 and can move, as a mover, so that the main magnet 232 and the first secondary magnet 233 can make the driving coil 311 vibrate, thereby driving the entire vibration unit 31 to vibrate.
  • the second secondary magnetic circuit serves as a part of the mover in the motor assembly 3 , that is, the second secondary magnetic steel 234 and the second secondary pole core 237 serve as a part of the motor mover.
  • the lower shell 11 is provided with a protruding portion 111 protruding in a direction close to the magnetic circuit system 23 , and the lower clamping plate 231 is fixed to the protruding portion 111 .
  • the vibration system 22 further includes a frame 223 fixed to the diaphragm 221 and an elastic support component 224 spaced apart from the diaphragm 221.
  • the voice coil 222 is suspended in the magnetic gap 20 through the frame 223.
  • the elastic support component 224 includes two elastic support components 224 respectively fixed to opposite sides of the basin frame 21, and the other ends of the two elastic support components 224 are respectively fixed to opposite sides of the frame 223.
  • the elastic support component 224 is used to enhance the vibration effect of the diaphragm 221 and improve the acoustic performance of the multifunctional sound-generating device 100, and is used to balance the swing of the vibration system 22 and improve the stability of the multifunctional sound-generating device 100.
  • the elastic support assembly 224 includes an auxiliary diaphragm 2241 fixed to the frame 223 and a circuit board 2242 fixed to the auxiliary diaphragm 2241; the circuit board 2242 is an FPC (flexible circuit board).
  • the circuit boards 2242 is exposed to the outside through the lower shell 11 and/or the upper shell 12 to introduce an electrical signal to the voice coil 222, that is, the voice coil 222 can be electrically connected to the external circuit through the circuit board 2242 to achieve independent control of the sound unit 2.
  • the first secondary pole core 235 includes a stacked portion 2351 stacked and fixed on a side of the first secondary magnet 233 close to the diaphragm 221 in the vibration system 22, and an extension portion 2352 formed by bending and extending the side of the stacked portion 2351 away from the main magnet 232 toward the lower shell 11.
  • the extension portion 2352 extends to a side of the lower shell 11 that is opposite to the sound outlet 10 and is fixedly connected thereto.
  • the extension part 2352 is spaced apart from the corresponding first secondary magnetic steel 233; the extension part 2352 is a multi-layered step structure extending obliquely downward, and the step farthest from the stacked part 2351 is fixed to the lower shell 11. This can not only prevent the first secondary pole core 235 from extending too close to the vibration unit 31 and causing the vibration unit 31 to collide with it when vibrating, but also improve the strength of the extension part 2352, so that it can support the first secondary magnetic steel 233 more stably.
  • the first secondary pole core 235 also includes a covering portion 2352 formed by bending and extending the stacked portion 2351 on opposite sides close to the two second secondary magnetic steels 234 in a direction away from the diaphragm 221 of the vibration system 22.
  • the covering portion 2352 is spaced apart from the first secondary magnetic steel 233 and is fixedly connected to the extension portion 2352 on one side close to the extension portion 2352. In this way, the first secondary pole core 235 can better cover the first secondary magnetic steel 233 to enhance the magnetic field of the magnetic circuit system 23.
  • the driving coils 311 include two and are respectively disposed on two opposite sides of the lower clamping plate 231 along the vibration direction of the vibration unit 31 .
  • the vibration unit 31 further includes a mass block 312, and the elastic member 32 is respectively fixed to the opposite sides of the mass block 312 along the vibration direction of the vibration unit 31, and the mass block 312 has a mounting hole 30 passing through it; the lower clamping plate 231 passes through the mounting hole 30 and is fixed to the side of the lower shell 11 that is opposite to the sound outlet 10, and the second secondary magnetic steel 234 and the driving coil 311 are both fixed to the mass block 312.
  • the vibration unit 31 can be counterweighted by the mass block 312 to provide the vibration amplitude of the vibration unit 31, thereby improving the vibration effect of the device.
  • the counterweight block can be designed to be smaller while maintaining the same vibration effect, so that more space can be used as the back cavity of the sound unit 2 during vibration sound generation, thereby improving the low-frequency acoustic performance.
  • the motor assembly 3 also includes a flexible conductive connector 33 electrically connected to the drive coil 311.
  • the flexible conductive connector 33 includes a fixed portion 331 fixed to a side of the mass block 312 away from the diaphragm 221 in the vibration system 22, an elastic arm 332 formed by bending and extending one side of the fixed portion 331, and a penetration portion 333 extending from the elastic arm 332 to the outside of the accommodation space and passing through the lower shell 11 and/or the upper shell 12; the flexible conductive connector 33 is an FPC (flexible printed circuit) for introducing electrical signals to the drive coil 311, thereby realizing independent control of the motor assembly 3.
  • FPC flexible printed circuit
  • the elastic member 32 includes two U-shaped structures, the two elastic members 32 are centrally symmetrically arranged and respectively located on opposite sides of the mass block 312 along the vibration direction of the vibration unit 31, one end of the elastic member 32 is fixed to the peripheral side of the lower shell 11 or the upper shell 12, and the other end is fixed to the peripheral side of the mass block 312. In this way, the mass block 312 can be elastically suspended in the receiving space more stably.
  • the multifunctional sound-generating device 100 of the present embodiment realizes the fixing mode of the main magnetic circuit, the first secondary magnetic circuit and the second secondary magnetic circuit to the lower shell 11 or the upper shell 12 respectively by fixing the main magnetic circuit to the lower shell 11, fixing the first secondary magnetic steel 233 of the first secondary magnetic circuit to the lower shell by stacking and fixing the first secondary pole core 235 thereon, and fixing the second secondary magnetic circuit to the driving coil 311, which is conducive to controlling the magnetic gap 20 and improving the production accuracy and product consistency.
  • the second secondary magnetic circuit is used as a movable motor mover, that is, as a part of the vibration unit 31, so that the counterweight of the mass block 312 can be reduced and part of the volume of the mass block 312 can be released.
  • the volume released by the mass block 312 can be converted into the back cavity volume of the speaker (sound-generating part), which is conducive to improving the performance of the speaker.
  • the counterweight of the counterweight block 312 is reduced, which is conducive to saving the material cost of the mass block 312.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

本实用新型提供了一种多功能发声器件,其包括下壳、上壳和发声单体;所述发声单体包括盆架、振动系统以及具有磁间隙的磁路系统;所述磁路系统包括主磁路以及分别环绕所述主磁路并与所述主磁路间隔形成所述磁间隙的第一副磁路和第二副磁路;所述第一副磁路包括第一副磁钢和第一副极芯,所述第一副极芯将所述第一副磁钢固定于所述下壳;所述多功能发声器件还包括马达组件,所述马达组件包括振动单元以及弹性件;所述振动单元包括驱动线圈。本实用新型的多功能发声器件实现了主磁路、第一副磁路以及第二副磁路分别固定于下壳或上壳的固定方式,这样不仅有利于控制磁间隙,还能提高生产精度以及产品一致性。

Description

多功能发声器件 技术领域
本实用新型涉及电声转换领域,尤其涉及一种多功能发声器件。
背景技术
随着智能移动设备的不断创新,其越来越受使用者的喜爱,最常见的便是手机、平板以及掌上游戏机等,而在智能移动设备中音乐播放功能和振动功能更是成为了基础功能,因此,具有音乐播放功能和振动功能的多功能发声器件现已广泛的应用到智能移动设备中。
相关技术的多功能发声器件包括壳体、收容于壳体内的发声单体以及用于产生振动的马达组件,其中,发声单体包括盆架、振动系统以及具有磁间隙的磁路系统;马达组件主要包括振动单元以及将振动单元弹性悬置于壳体的弹性件,振动单元主要包括驱动线圈。
为了给驱动线圈提供足够的驱动力并维持磁路系统的磁间隙空间,则需要将整个磁路系统固定于壳体内。然而,现有技术的多功能发声器件中并没有能为驱动线圈提供驱动力并利于控制磁间隙的磁路系统的固定方式。
因此,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
本实用新型的目的在于提供一种多功能发声器件,以解决现有技术的多功能发声器件中没有能为驱动线圈提供驱动力并利于控制磁间隙的磁路系统的固定方式的问题。
技术解决方案
为了达到上述目的,本实用新型提供了一种多功能发声器件,其包括下壳、盖设于所述下壳并共同围成收容空间的上壳和收容于所述收容空间内的发声单体,所述上壳设置有贯穿其上的出声口;所述发声单体包括盆架、固定于所述盆架的振动系统以及具有磁间隙并驱动所述振动系统振动发声的磁路系统;所述磁路系统包括主磁路以及分别环绕所述主磁路并与所述主磁路间隔形成所述磁间隙的第一副磁路和第二副磁路;
所述第一副磁路包括第一副磁钢以及叠设固定于所述第一副磁钢的第一副极芯,所述第一副极芯将所述第一副磁钢固定于所述下壳;所述主磁路固定于所述下壳;
所述多功能发声器件还包括收容于所述收容空间内的马达组件;所述马达组件包括设置于所述磁路系统远离所述振动系统的一侧的振动单元以及将所述振动单元弹性悬置于所述收容空间内的弹性件;所述振动单元包括驱动线圈,所述驱动线圈与所述第二副磁路固定连接。
优选的,所述第一副极芯包括叠设固定于所述第一副磁钢靠近所述振动系统的一侧的叠设部以及由所述叠设部远离所述主磁钢的一侧向所述下壳的方向弯折延伸形成的延伸部,所述延伸部延伸至所述下壳与所述出声口正对的一侧并与之固定连接;所述延伸部与对应的所述第一副磁钢间隔设置。
优选的,所述延伸部为倾斜向下延伸的多层阶梯结构且最远离所述叠设部的阶梯固定于所述下壳。
优选的,所述第一副极芯还包括由所述叠设部靠近两个所述第二副磁钢的相对两侧分别沿远离所述振动系统的方向弯折延伸形成的包覆部,所述包覆部与所述第一副磁钢间隔设置且靠近所述延伸部的一侧与所述延伸部固定连接。
优选的,所述磁路系统呈矩形;所述主磁路包括固定于所述下壳的下夹板、叠设固定于所述下夹板靠近所述振动系统的一侧的主磁钢以及叠设固定于所述主磁钢靠近所述振动系统的一侧的主极芯;所述第一副磁钢包括两个且分别位于所述主磁钢的短轴的相对两侧,所述第一副极芯也包括两个且一个所述第一副极芯叠设固定于一个所述第一副磁钢上;所述第二副磁路包括分别位于所述主磁钢的长轴的相对两侧的两个第二副磁钢以及分别叠设于两个所述第二副磁钢靠近所述振动系统的一侧的两个第二副极芯。
优选的,所述驱动线圈包括两个且沿所述振动单元的振动方向分别设置于所述下夹板的相对两侧。
优选的,所述振动单元还包括质量块,所述弹性件分别固定于所述质量块沿所述振动单元的振动方向的相对两侧,所述质量块具有贯穿其上的安装孔;所述下夹板穿过所述安装孔固定于所述下壳与所述出声口正对的一侧,所述第二副磁钢以及所述驱动线圈固定连接于所述质量块。
优选的,所述弹性件包括两个且均为U型结构,两个所述弹性件呈中心对称设置并分别位于所述质量块沿所述振动单元的振动方向的相对两侧,所述弹性件的一端固定于所述下壳或上壳的周侧,另一端固定于所述质量块的周侧。
优选的,所述马达组件还包括与所述驱动线圈电连接的柔性导电连接件,所述柔性导电连接件包括固定于所述质量块远离所述振动系统的一侧的固定部、由所述固定部的一侧弯折延伸形成的弹臂以及由所述弹臂向所述收容空间外延伸并穿过所述下壳和/或所述上壳设置的穿设部。
优选的,所述振动系统包括固定于所述盆架的振膜以及插设悬置于所述磁间隙并驱动所述振膜振动的音圈,所述振膜远离所述盆架的一侧固定于所述上壳并与所述出声口相对设置。
有益效果
与相关技术相比,本实用新型的多功能发声器件通过将主磁路固定于下壳、将第一副磁路的第一副磁钢通过叠设固定于其上的第一副极芯固定于下壳,将第二副磁路与驱动线圈固定连接,从而实现了主磁路、第一副磁路以及第二副磁路分别固定于下壳或上壳的固定方式,这样不仅有利于控制磁间隙,同时还能提高生产精度以及产品一致性。
附图说明
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为本实用新型实施例提供的一种多功能发声器件的全部结构分解图;
图2为本实用新型实施例提供的一种多功能发声器件的部分结构分解图;
图3为本实用新型实施例提供的一种多功能发声器件的立体结构示意图;
图4为沿图3中A-A线的剖示图。
其中,100、多功能发声器件;1、壳体;11、下壳;111、凸出部;12、上壳;2、发声单体;21、盆架;22、振动系统;221、振膜;222、音圈;223、骨架;224、弹性支持组件;2241、辅助振膜;2242、电路板;23、磁路系统;231、下夹板;232、主磁钢;233、第一副磁钢;234、第二副磁钢;235、第一副极芯;2351、叠设部;2352、延伸部;2353、包覆部;236、主极芯;237、第二副极芯;3、马达组件;31、振动单元;311、驱动线圈;312、质量块;32、弹性件;33、导电连接件;331、固定部;332、弹臂;333、穿设部;10、出声口;20、磁间隙;30、安装孔。
本发明的实施方式
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。
结合图1至图4所示,本实用新型实施例提供了一种多功能发声器件100,其包括下壳11、盖设于下壳11并共同围成收容空间的上壳12以及收容于收容空间内的发声单体2和马达组件3;上壳12设置有贯穿其上的出声口10。
其中,下壳11和上壳12共同形成多功能发声器件100的壳体1。
具体地,发声单体2包括盆架21、固定于盆架21的振动系统22以及具有磁间隙20并驱动振动系统22振动发声的磁路系统23。
具体地,振动系统22包括固定于盆架21的振膜221以及插设悬置于磁间隙20并驱动振膜221振动的音圈222,振膜221远离盆架21的一侧固定于上壳12并与出声口10相对设置。
具体地,磁路系统23包括固定于下壳11的主磁路以及分别环绕主磁路并与主磁路间隔形成磁间隙20的第一副磁路和第二副磁路,主磁路固定于下壳11;第一副磁路包括第一副磁钢233以及叠设固定于第一副磁钢233的第一副极芯235,第一副极芯235将第一副磁钢233固定于下壳11。这样既可以通过第一副极芯235提升磁路系统23的磁场,又可以通过第一副极芯235将第一副磁钢233固定于下壳11。
其中,第一副极芯235将第一副磁钢233固定于下壳11与出声口10正对的一侧,相当于第一副极芯235将第一副磁钢233固定于下壳11的底部或底面。
磁路系统呈矩形;主磁路包括固定于下壳11的下夹板231、叠设固定于下夹板231靠近振动系统22的一侧的主磁钢232以及叠设固定于主磁钢232靠近振动系统22的一侧的主极芯236;第一副磁钢233包括两个且分别位于主磁钢232的短轴的相对两侧,第一副极芯235也包括两个且一个第一副极芯235叠设固定于一个第一副磁钢233上;第二副磁路包括分别位于主磁钢232的长轴的相对两侧的两个第二副磁钢234以及分别叠设于两个第二副磁钢234靠近振动系统22的一侧的两个第二副极芯237。
具体地,马达组件3包括设置于磁路系统23远离振膜221的一侧的振动单元31以及将振动单元31弹性悬置于收容空间内的弹性件32;振动单元31包括与第二副磁路中第二副磁钢234固定连接的驱动线圈311。
其中,马达组件3的振动原理为:驱动线圈311处在固定于壳体1的主磁钢232和第一副磁钢233的磁场范围内,并相互作用产生电磁场,此时,通过控制驱动线圈311的电流方向便可以实现与主磁钢232和第一副磁钢233的相互驱动力,而因为主磁钢232和第一副磁钢233固定于壳体1不可动,作为定子,驱动线圈311通过弹性件32悬置于收容空间内可动,作为动子,这样主磁钢232和第一副磁钢233便可以使得驱动线圈311振动,从而带动整个振动单元31振动。
第二副磁路作为马达组件3中动子的一部分,即第二副磁钢234和第二副极芯237作为马达动子的一部分。
本实施例中,下壳11设有向靠近磁路系统23的方向凸出形成的凸出部111,下夹板231固定于凸出部111。
本实施例中,振动系统22还包括固定于振膜221的骨架223以及与振膜221间隔设置的弹性支撑组件224,音圈222通过骨架223悬置于磁间隙20内;弹性支撑组件224包括两个且分别固定于盆架21的相对两侧,两个弹性支撑组件224的另一端分别固定于骨架223的相对两侧。弹性支撑组件224一方面用于加强振膜221的振动效果,改善多功能发声器件100的声学性能,另一方面用于平衡振动系统22的摇摆,提高多功能发声器件100的稳定性。
本实施例中,弹性支撑组件224包括与骨架223固定的辅助振膜2241和固定于辅助振膜2241的电路板2242;电路板2242为FPC(柔性电路板)。其中一个电路板2242穿过下壳11和/或上壳12向外露出,以为音圈222引入电信号,即音圈222可以通过电路板2242与外部电路进行电连接,实现发声单体2的独立控制。
本实施例中,第一副极芯235包括叠设固定于第一副磁钢233靠近振动系统22中振膜221的一侧的叠设部2351以及由叠设部2351远离主磁钢232的一侧向下壳11的方向弯折延伸形成的延伸部2352,延伸部2352延伸至下壳11与出声口10正对的一侧并与之固定连接。
延伸部2352与对应的第一副磁钢233间隔设置;延伸部2352为倾斜向下延伸的多层阶梯结构且最远离叠设部2351的阶梯固定于下壳11。这样不仅可以避免第一副极芯235的延伸过于靠近振动单元31而使振动单元31振动时与其产生碰撞,还能提升延伸部2352的强度,使其更稳定的支撑第一副磁钢233。
第一副极芯235还包括由叠设部2351靠近两个第二副磁钢234的相对两侧分别沿远离振动系统22中振膜221的方向弯折延伸形成的包覆部2352,包覆部2352与第一副磁钢233间隔设置且靠近延伸部2352的一侧与延伸部2352固定连接。这样可以使第一副极芯235更好的包覆第一副磁钢233,以提升磁路系统23的磁场。
本实施例中,驱动线圈311包括两个且沿振动单元31的振动方向分别设置于下夹板231的相对两侧。
本实施例中,振动单元31还包括质量块312,弹性件32分别固定于质量块312沿振动单元31的振动方向的相对两侧,质量块312具有贯穿其上的安装孔30;下夹板231穿过安装孔30固定于下壳11与出声口10正对的一侧,第二副磁钢234以及驱动线圈311均固定于质量块312。这样可以通过质量块312为振动单元31配重,以提供振动单元31的振动幅度,进而改善器振动效果。
另外,基于磁路系统23中主磁钢232、第一副磁钢233以及第二副磁钢234的布置,还能在同样振动效果的前提下,使配重块设计得更小,以使振动发声期间具有更多的空间可用于作为发声单体2的后腔,从而改善低频声学性能。
本实施例中,马达组件3还包括与驱动线圈311电连接的柔性导电连接件33,柔性导电连接件33包括固定于质量块312远离振动系统22中振膜221的一侧的固定部331、由固定部331的一侧弯折延伸形成的弹臂332以及由弹臂332向收容空间外延伸并穿过下壳11和/或上壳12设置的穿设部333;柔性导电连接件33为FPC(柔性电路板),以为驱动线圈311引入电信号,从而实现马达组件3的独立控制。
本实施例中,弹性件32包括两个且均为U型结构,两个弹性件32呈中心对称设置并分别位于质量块312沿振动单元31的振动方向的相对两侧,弹性件32的一端固定于下壳11或上壳12的周侧,另一端固定于质量块312的周侧。这样可以更稳定的将质量块312弹性悬置于收容空间内。
与相关技术相比,本实施例的多功能发声器件100通过将主磁路固定于下壳11、将第一副磁路的第一副磁钢233通过叠设固定于其上的第一副极芯235固定于下壳,将第二副磁路与驱动线圈311固定,从而实现了主磁路、第一副磁路以及第二副磁路分别固定于下壳11或上壳12的固定方式,这样有利于控制磁间隙20,同时提高生产精度以及产品一致性。另外,将第二副磁路作为可动的马达动子,即作为振动单元31的一部分,这样可以降低质量块312的配重,释放部分质量块312的体积,在同等外形体积的壳体1中,质量块312所释放的体积可转化为扬声器(发声部分)的后腔体积,有利于提升扬声器的性能,还有就是配重块312的配重降低,有利于节省质量块312的用料成本。
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)

  1. 一种多功能发声器件,其包括下壳、盖设于所述下壳并共同围成收容空间的上壳和收容于所述收容空间内的发声单体,所述上壳设置有贯穿其上的出声口;所述发声单体包括盆架、固定于所述盆架的振动系统以及具有磁间隙并驱动所述振动系统振动发声的磁路系统;所述磁路系统包括主磁路以及分别环绕所述主磁路并与所述主磁路间隔形成所述磁间隙的第一副磁路和第二副磁路;其特征在于,
    所述第一副磁路包括第一副磁钢以及叠设固定于所述第一副磁钢的第一副极芯,所述第一副极芯将所述第一副磁钢固定于所述下壳;所述主磁路固定于所述下壳;
    所述多功能发声器件还包括收容于所述收容空间内的马达组件;所述马达组件包括设置于所述磁路系统远离所述振动系统的一侧的振动单元以及将所述振动单元弹性悬置于所述收容空间内的弹性件;所述振动单元包括驱动线圈,所述驱动线圈与所述第二副磁路固定连接。
  2. 根据权利要求1所述的多功能发声器件,其特征在于,所述第一副极芯包括叠设固定于所述第一副磁钢靠近所述振动系统的一侧的叠设部以及由所述叠设部远离所述主磁钢的一侧向所述下壳的方向弯折延伸形成的延伸部,所述延伸部延伸至所述下壳与所述出声口正对的一侧并与之固定连接;所述延伸部与对应的所述第一副磁钢间隔设置。
  3. 根据权利要求2所述的多功能发声器件,其特征在于,所述延伸部为倾斜向下延伸的多层阶梯结构且最远离所述叠设部的阶梯固定于所述下壳。
  4. 根据权利要求3所述的多功能发声器件,其特征在于,所述第一副极芯还包括由所述叠设部靠近两个所述第二副磁钢的相对两侧分别沿远离所述振动系统的方向弯折延伸形成的包覆部,所述包覆部与所述第一副磁钢间隔设置且靠近所述延伸部的一侧与所述延伸部固定连接。
  5. 根据权利要求1所述的多功能发声器件,其特征在于,所述磁路系统呈矩形;所述主磁路包括固定于所述下壳的下夹板、叠设固定于所述下夹板靠近所述振动系统的一侧的主磁钢以及叠设固定于所述主磁钢靠近所述振动系统的一侧的主极芯;所述第一副磁钢包括两个且分别位于所述主磁钢的短轴的相对两侧,所述第一副极芯也包括两个且一个所述第一副极芯叠设固定于一个所述第一副磁钢上;所述第二副磁路包括分别位于所述主磁钢的长轴的相对两侧的两个第二副磁钢以及分别叠设于两个所述第二副磁钢靠近所述振动系统的一侧的两个第二副极芯。
  6. 根据权利要求5所述的多功能发声器件,其特征在于,所述驱动线圈包括两个且沿所述振动单元的振动方向分别设置于所述下夹板的相对两侧。
  7. 根据权利要求5所述的多功能发声器件,其特征在于,所述振动单元还包括质量块,所述弹性件分别固定于所述质量块沿所述振动单元的振动方向的相对两侧,所述质量块具有贯穿其上的安装孔;所述下夹板穿过所述安装孔固定于所述下壳与所述出声口正对的一侧,所述第二副磁钢以及所述驱动线圈均固定连接于所述质量块。
  8. 根据权利要求7所述的多功能发声器件,其特征在于,所述弹性件包括两个且均为U型结构,两个所述弹性件呈中心对称设置并分别位于所述质量块沿所述振动单元的振动方向的相对两侧,所述弹性件的一端固定于所述下壳或上壳的周侧,另一端固定于所述质量块的周侧。
  9. 根据权利要求7所述的多功能发声器件,其特征在于,所述马达组件还包括与所述驱动线圈电连接的柔性导电连接件,所述柔性导电连接件包括固定于所述质量块远离所述振动系统的一侧的固定部、由所述固定部的一侧弯折延伸形成的弹臂以及由所述弹臂向所述收容空间外延伸并穿过所述下壳和/或所述上壳设置的穿设部。
  10. 根据权利要求1所述的多功能发声器件,其特征在于,所述振动系统包括固定于所述盆架的振膜以及插设悬置于所述磁间隙并驱动所述振膜振动的音圈,所述振膜远离所述盆架的一侧固定于所述上壳并与所述出声口相对设置。
PCT/CN2022/134574 2022-10-28 2022-11-28 多功能发声器件 WO2024087296A1 (zh)

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WO2021174570A1 (zh) * 2020-03-05 2021-09-10 瑞声声学科技(深圳)有限公司 扬声器箱
WO2022110505A1 (zh) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 发声器件
CN217216884U (zh) * 2022-01-27 2022-08-16 瑞声光电科技(常州)有限公司 多功能发声器件

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Publication number Priority date Publication date Assignee Title
WO2021174570A1 (zh) * 2020-03-05 2021-09-10 瑞声声学科技(深圳)有限公司 扬声器箱
WO2022110505A1 (zh) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 发声器件
CN217216884U (zh) * 2022-01-27 2022-08-16 瑞声光电科技(常州)有限公司 多功能发声器件

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