WO2021258439A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2021258439A1
WO2021258439A1 PCT/CN2020/102771 CN2020102771W WO2021258439A1 WO 2021258439 A1 WO2021258439 A1 WO 2021258439A1 CN 2020102771 W CN2020102771 W CN 2020102771W WO 2021258439 A1 WO2021258439 A1 WO 2021258439A1
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WO
WIPO (PCT)
Prior art keywords
frame
yoke
voice coil
extension
skeleton
Prior art date
Application number
PCT/CN2020/102771
Other languages
English (en)
French (fr)
Inventor
肖波
令狐荣林
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2021258439A1 publication Critical patent/WO2021258439A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • 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
    • H04R9/025—Magnetic circuit
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • 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 invention relates to the field of electro-acoustic conversion, in particular to a sound-producing device applied to electronic sound box products.
  • the sound device in the related art includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system with a magnetic gap;
  • the vibration system includes an upper diaphragm fixed to the basin frame, and The upper diaphragm is inserted in the magnetic gap to drive the voice coil to vibrate and produce sound, the lower diaphragm arranged opposite to the upper diaphragm, and the upper diaphragm and the lower diaphragm respectively.
  • the frame one end of the lower diaphragm is fixed to the frame, and the other end is fixed to the lower diaphragm of the voice coil at an end away from the diaphragm.
  • the lower diaphragm is fixed to the opposite ends of the voice coil.
  • the lower diaphragm can effectively prevent lateral oscillation of the voice coil when it vibrates, it is sandwiched
  • the small space between the basin frame and the voice coil leads to poor stability of the voice coil, and the volume of the magnetic circuit system is also limited, so that the acoustic improvement of the sound emitting device is limited.
  • the purpose of the present invention is to provide a sound generating device with good stability and excellent acoustic performance.
  • the present invention provides a sound generating device, which includes a vibration system and a magnetic circuit system for driving the vibration system to vibrate and produce sound.
  • a voice coil that vibrates and produces sound a lower diaphragm arranged opposite to the upper diaphragm, and a skeleton arranged between the upper diaphragm and the lower diaphragm, and the magnetic circuit system includes
  • the yoke is arranged relatively spaced apart and the first magnetic steel is fixed to the yoke.
  • the yoke includes a yoke body and a yoke supported by the yoke body that protrudes and extends in the direction of the upper diaphragm A stand, the first magnetic steel is fixed to the yoke body, the voice coil is arranged around the outer side of the first magnetic steel, and the yoke support stand is arranged on the inner side of the first magnetic steel;
  • the frame includes a frame body fixed to the upper diaphragm, an inner frame bent and extended from the frame body toward the yoke, and an inner frame bent and extended from the frame body toward the voice coil and connected to the inner frame.
  • the frame extension part connected to the voice coil, the inner frame extends to the inner side of the first magnetic steel; the lower diaphragm is arranged on the inner side of the first magnetic steel and is connected to the inner frame and the magnetic Between the yoke supports.
  • the magnetic circuit system further includes a second magnetic steel fixed to the yoke body, and the second magnetic steel is arranged on the outer side of the first magnetic steel and is spaced from the first magnetic steel to form a magnetic field. A gap, the voice coil is inserted in the magnetic gap.
  • the frame body is ring-shaped, and the inner frame includes an inner frame body bent and extended from the inner periphery of the frame body, and the inner frame body is bent in a direction close to the yoke support platform An extended inner frame fixing part, the inner frame fixing part is connected with the lower diaphragm; the frame extension part is formed by bending and extending the outer periphery of the frame body.
  • the skeleton extension includes a skeleton extension body bent and extended from the skeleton body and a skeleton extension fixing part bent and extended from the skeleton extension body in a direction away from the inner skeleton, and the skeleton extends
  • the fixing part is fixedly connected to an end of the voice coil close to the upper diaphragm.
  • the frame further includes an outer frame bent and extended from an end of the frame extension fixing part away from the frame extension part body toward the yoke, and the outer frame is arranged on the outer side of the voice coil
  • the sounding device also includes a basin used to support the vibration system and the magnetic circuit system and an elastic member arranged on the outside of the voice coil, one end of the elastic member is fixed to the outer frame, the The other end of the elastic member is fixed to the basin frame.
  • the outer frame includes an outer frame body arranged on the outer side of the voice coil and bent and extended by the frame extension and fixing part, and an end of the outer frame body away from the frame extension and fixing part away from the frame.
  • the outer frame fixing portion bent and extended in the voice coil direction, and the elastic member is fixed to the outer frame fixing portion.
  • the voice coil includes a voice coil body and a voice coil lead wire extending from the voice coil body;
  • the elastic member is a flexible circuit board, the outer frame is provided with a lead hole penetrating through it, and the voice coil lead wire Passing through the lead hole and electrically connected with the elastic member.
  • the voice coil further comprises an avoidance step formed by a recess of the voice coil body at one end away from the upper diaphragm near the periphery of the outer frame, and the voice coil lead wire is led out from the avoidance step.
  • the first magnetic steel has a hollow rectangular shape
  • the second magnetic steel includes two and they are respectively arranged on opposite sides of the long axis of the first magnetic steel
  • the magnetic circuit system further includes stacking A first clamping plate having a hollow ring shape on the first magnet, a second clamping plate stacked on the second magnet, and an auxiliary magnet stacked on the second clamping plate, the second clamping plate comprising
  • the second body between the splint extension bodies, the splint extension bodies are respectively connected between the adjacent first body and the second body, the first body, the splint extension body and the second body
  • the bodies are jointly enclosed in a ring shape, and the second body is closer to the upper diaphragm than the first body.
  • the sound generating device further includes a damping member, the damping member, the basin frame, the upper diaphragm, and the yoke collectively enclose an inner sound cavity, and the inner sound cavity communicates with the outside through the damping member
  • the damping member includes a damping member body fixed to the yoke, a damping member extension portion bent and extending from the damping member body toward the basin frame, and a damping member extension portion bent and extended by the damping member extension portion
  • the yoke is fixed to the connecting portion of the damping member of the basin frame, the yoke further includes a yoke extension portion that extends from the yoke body in a direction away from the yoke support base, and the damping member body is fixed to the yoke support.
  • the yoke extension part is away from the side of the upper diaphragm.
  • the sound generating device of the present invention sets the yoke of the magnetic circuit system with a yoke body and a yoke support table protruding from the yoke body to the direction of the diaphragm, and fixes the first magnetic steel to the yoke body , And set the yoke support table on the inner side of the first magnetic steel, while the voice coil is arranged around the outer side of the first magnetic steel, and the skeleton body of the skeleton is respectively extended from the inner skeleton and the skeleton extension part, and the inner skeleton is extended to The inner side of the first magnetic steel, and the lower diaphragm is arranged on the inner side of the first magnetic steel and connected between the inner frame and the yoke support platform.
  • the lower diaphragm of the present invention is arranged on the inner side of the first magnetic steel. Larger, so that the lower diaphragm accommodated in the space can be designed to be larger, so that the lateral swing effect of the voice coil when vibrating is good, and the sound generating device has good stability.
  • this structure on the one hand makes the magnetic gap formed by the first magnetic steel and the second magnetic steel larger, and on the other hand, it also eliminates the influence of the lower diaphragm on the magnetic gap, thereby eliminating the design of the magnetic circuit system. The limitation of, makes the magnetic circuit better, and effectively improves the acoustic performance of the sound emitting device.
  • Fig. 1 is a schematic diagram of the three-dimensional structure of the sound generating device of the present invention
  • FIG. 2 is an exploded view of a part of the three-dimensional structure of the sound generating device of the present invention
  • Figure 3 is a sectional view taken along the line A-A in Figure 1;
  • Fig. 4 is an enlarged view of the part shown in C in Fig. 3;
  • Figure 5 is a sectional view taken along the line B-B in Figure 1;
  • Fig. 6 is a cross-sectional view of another embodiment of the sound emitting device of Fig. 5;
  • FIG. 7 is a schematic diagram of the three-dimensional structure of the lower diaphragm of the sound generating device of the present invention.
  • FIG. 8 is a schematic diagram of the three-dimensional structure of the voice coil of the sound generating device of the present invention.
  • FIG. 9 is a schematic diagram of the three-dimensional structure of the skeleton of the sound emitting device of the present invention.
  • FIG. 10 is a schematic structural diagram of four embodiments of the first magnetic steel of the sound emitting device in FIG. 3.
  • the present invention provides a sound generating device 100, which includes a vibration system 2, a magnetic circuit system 3, and a damping member 4, and the magnetic circuit system 3 drives the vibration system 2 to vibrate and produce sound.
  • the magnetic circuit system 3 specifically has a magnetic gap 30.
  • the sound generating device 100 further includes a basin frame 1 for supporting the vibration system 2 and the magnetic circuit system 3 respectively.
  • the vibration system 2 includes an upper diaphragm 21 for vibrating and sounding, a lower diaphragm 22 arranged opposite to the upper diaphragm 21, inserted in the magnetic gap 30 to drive the upper diaphragm 21 to vibrate and sound The voice coil 23.
  • the vibration system 2 is fixed to the basin frame 1 and installed.
  • the upper diaphragm 21 is fixed to the basin frame 1.
  • the magnetic circuit system 3 includes a magnetic yoke 31 fixed to the base frame 1 and arranged opposite to the upper diaphragm 21, and a first magnetic steel 32 and a first magnetic steel respectively fixed to the magnetic yoke 31.
  • the second magnetic steel 33 forms the magnetic gap 30 with an interval between the second magnetic steel 33 and the first magnetic steel 32.
  • the yoke 31 includes a yoke body 311 and a yoke support platform 312 formed by the yoke body 311 protruding and extending in the direction of the upper diaphragm 21.
  • the yoke body 311 is fixed to the basin frame 1 and is arranged opposite to the upper diaphragm 21.
  • the yoke support platform 312 is arranged at the middle position of the yoke body 311.
  • the first magnetic steel 32 and the second magnetic steel 33 are respectively fixed to the yoke body 311, and the second magnetic steel 33 is arranged on the outside of the first magnetic steel 32 and is connected to the first magnetic steel.
  • the steel 32 forms the magnetic gap 30 at intervals.
  • the voice coil 23 is arranged around the outer side of the first magnetic steel 32, and the voice coil 23 is inserted into the magnetic gap 30.
  • the yoke support stand 312 is arranged inside the first magnetic steel 32. This structure makes a space between the first magnetic steel 32 and the yoke support stand 312, so that on the one hand, the first magnetic steel
  • the steel 32 encloses a ring structure, which is beneficial to increase the space of the magnetic gap 30 of the magnetic circuit system 3 and improve the acoustic performance of the sound emitting device 100.
  • the vibration system 2 further includes a skeleton 24 connected to the upper diaphragm 21 and the lower diaphragm 22 in a distributed manner.
  • the frame 24 includes a frame body 241 fixed to the upper diaphragm 21, an inner frame 242 bent and extended from the frame body 241 toward the yoke 31, and an inner frame 242 facing toward the yoke 31.
  • the voice coil 23 is bent and extended and is connected to the frame extension 243 of the voice coil 23.
  • the upper diaphragm 21 includes an upper fixing portion 211 fixed to the basin frame 1, an upper folding ring portion 212 that is bent and extended from the periphery of the upper fixing portion 211 in a ring shape, and The upper ring portion 212 is bent and extended in the direction away from the upper fixing portion 211 and the upper vibrating portion 213 and the dome 214 attached and fixed to the upper vibrating portion 213, and the upper vibrating portion 213 is provided with penetrating through it.
  • the dome 214 is pasted to cover the through hole 210, and the frame body 241 is fixed to the dome 214.
  • the inner frame 242 extends to the inner side of the first magnetic steel 32.
  • the lower diaphragm 22 is disposed on the inner side of the first magnetic steel 32 and connected between the inner frame 242 and the yoke support platform 312.
  • the lower diaphragm 22 has a ring shape.
  • the lower diaphragm 22 is arranged on the inner side of the first magnetic steel 32 and spaced apart from the yoke body 311.
  • the outer side of the lower diaphragm 22 is fixed to an end of the inner frame 242 away from the upper diaphragm 21, and the inner side of the lower diaphragm 22 is fixed to the yoke support platform 312.
  • the above structure enables the voice coil 23 to drive the frame 24 to drive the upper diaphragm 21 and the lower diaphragm 22 to vibrate simultaneously, that is, the voice coil 23 simultaneously drives the frame body 241 and the inner frame 242
  • a dual-diaphragm vibration and sound structure is realized.
  • the lower diaphragm 22 is arranged in the space between the frame 1 and the voice coil 23, and the lower diaphragm 22 is arranged in the space enclosed by the first magnetic steel 32.
  • the inner part is relatively large, so that the lower diaphragm 22 can be designed to be relatively large, so that the lateral swing effect of the voice coil 23 when vibrating is good, and the sound generating device 100 is stable.
  • FIG. 6 is another embodiment of FIG. 5 and provides a sound emitting device 100a.
  • the yoke support base 312a is annular and is arranged inside the first magnet 32a.
  • the inner side of the lower diaphragm 22a is fixed to an end of the inner frame 242a away from the upper diaphragm 21a, and the outer side of the lower diaphragm 22a is fixed to the yoke support base 312a.
  • This structure also enables the lower diaphragm 22a to be designed to be relatively large, and the lateral swing effect of the voice coil 23a when vibrating is good, so that the sound generating device 100a is stable.
  • the frame body 241 has a ring shape.
  • the inner frame 242 includes an inner frame body 2421 bent and extended from the inner periphery of the frame body 241 and an inner frame bent and extended from the inner frame body 2421 in a direction close to the yoke support 312 Fixing part 2422.
  • the inner frame fixing portion 2422 is connected to the lower diaphragm 22.
  • the inner frame body 2421 is arranged inside the first magnetic steel 32. Specifically, the inner frame fixing portion 2422 is fixed to the lower diaphragm 22, and the inner frame fixing portion 2422 is provided on the inner frame 242 to increase the bonding area and increase the inner frame fixing portion 2422 and the lower diaphragm 22.
  • the connection strength of the diaphragm 22 is described below to improve the vibration reliability.
  • the lower diaphragm 22 includes a first lower fixing portion 221 fixed to the yoke support table 312, and a ring-shaped lower fixing portion 221 bent and extended from the outer periphery of the first lower fixing portion 221
  • the folding ring portion 222 and the second lower fixing portion 223 in a ring shape extending in the direction of the first magnetic steel 32 from the outer periphery of the lower folding ring portion 222.
  • the lower folding ring portion 222 and the second lower fixing portion 223 are both spaced apart from the yoke body 311, and the inner frame fixing portion 2422 is fixed to the second lower fixing portion 223.
  • the structure of the The lower diaphragm 22 is fixed to the yoke support base 312 and the inner frame fixing portion 242 through the first lower fixing portion 221 and the second lower fixing portion 223, respectively, so that the lower diaphragm 22 is fully
  • the space enclosed by the first magnetic steel 32 is used, so that the lower diaphragm 22 can be designed to be relatively large.
  • the skeleton extension 243 is formed by bending and extending the skeleton body 241.
  • the skeleton extension 243 includes a skeleton extension body 2431 bent and extended from the skeleton body 241 and a skeleton extension fixing part 2432 bent and extended from the skeleton extension body 2431 in a direction away from the inner skeleton 242.
  • the frame extension fixing portion 2432 is fixedly connected to an end of the voice coil 23 close to the upper diaphragm 21.
  • the skeleton extension fixing portion 2432 is provided on the skeleton extension 243 to increase the coupling area, so as to increase the connection strength between the skeleton extension fixing portion 2432 and the upper diaphragm 21 and improve vibration reliability.
  • the frame 24 further includes an outer frame 244 bent and extended from an end of the frame extension fixing portion 2432 away from the frame extension portion main body 2431 toward the yoke 31.
  • the outer frame 244 is arranged on the outer side of the voice coil 23.
  • the outer frame 244 includes an outer frame body 2441 that is bent and extended by the frame extension and fixing portion 2432 and arranged on the outer side of the voice coil 23, and the outer frame body 2441 is away from the frame extension and fixing portion.
  • One end of 2432 is bent and extended from the outer frame fixing portion 2442 away from the voice coil 23.
  • the outer frame fixing portion 2442 is provided on the outer frame 244 to increase the bonding area.
  • the sound generating device further includes an elastic member 25.
  • the elastic member 25 is arranged outside the voice coil 23.
  • the elastic member 25 is opposite to the upper diaphragm 21 and is arranged at intervals.
  • the elastic member 25 includes two and is respectively located on two opposite sides of the short axis of the first magnetic steel 32.
  • the symmetrical structure of the elastic member 25 is beneficial to restrain the swing of the voice coil 23 and make the voice coil 23 have a good balance.
  • the elastic member 25 is fixed to the outer frame 244, and the other end of the elastic member 25 is fixed to the basin frame 1.
  • the elastic member 25 is fixed to the outer frame fixing portion 2442.
  • This structure is beneficial for the outer frame 244 to be supported and fixed to the basin frame 1 through the elastic member 25, so as to better support the upper diaphragm 21 and make the vibration of the upper diaphragm 21 better.
  • the outer frame 244 and the inner frame 242 are respectively arranged on opposite sides of the first magnetic steel 32, so that the ability of the frame 24 to restrain the upper diaphragm 21 from swinging is optimal, so that The acoustic performance of the sound generating device 100 is better.
  • the elastic member 25 includes a first fixed arm 251 fixed to the basin frame 1, a second fixed arm 252 spaced apart from the first fixed arm 251, and a connection between the first fixed arm 251 and the first fixed arm 251.
  • the elastic arm 253 of the second fixed arm 252, and the first fixed arm 251 is fixed to the basin frame 1.
  • the outer frame fixing portion 2442 is connected to the second fixing arm 252, and the structure of the elastic member 25 is favorable for the outer frame fixing portion 2442 to restrain the upper diaphragm 21 from swinging.
  • the voice coil 23 includes a voice coil body 231, and the voice coil body 231 is away from the upper diaphragm.
  • An avoidance step 232 formed by a recess at one end of the outer frame 244 close to the periphery of the outer frame 244 and a voice coil lead 233 extending from the voice coil body 231.
  • the structure of the avoiding step 232 is beneficial to the reliability of the elastic member 25 when it vibrates.
  • the elastic member 25 is a flexible circuit board, and the outer frame 244 is provided with a lead hole 2440 passing through it.
  • the voice coil lead 233 is used to electrically connect and receive external signals.
  • the voice coil lead 233 passes through the lead hole 2440 and is electrically connected to the elastic member 25.
  • the voice coil lead 233 is led out from the avoiding step 232. On the one hand, it is used to improve the vibration intensity and balance of the vibration system 2 and suppress swings.
  • the voice coil 23 is led out to connect to an external power source, which avoids the risk of the voice coil lead being easily broken when the voice coil lead structure leads to the power source. .
  • the sound generating device further includes a damping member 4, and the damping member 4, the basin frame 1, the upper diaphragm 21 and the magnetic yoke 31 collectively enclose an inner sound cavity 10.
  • the inner acoustic cavity 10 communicates with the outside through the damping member 4.
  • the damping member 4 includes a damping member body 41 fixed to the yoke 31, a damping member extension 42 bent and extending from the damping member body 41 in the direction of the basin frame 1, and The damping member extension 42 is bent, extended and fixed to the damping member connecting portion 43 of the basin frame 1.
  • the yoke 31 further includes a yoke extension 313 extending from the yoke body 311 in a direction away from the yoke support base 312, and the damper body 41 is fixed to the yoke extension 313 away from the yoke extension 313. Said one side of the diaphragm 21.
  • the damping member 4 is equivalent to providing a step structure, which makes the yoke 31, the damping member body 41, and the damping member extension 42 form a magnetic bowl leakage structure, thereby effectively expanding the sound generating device 100 is applied, and at the same time, foreign dust and other impurities are prevented from entering the inner acoustic cavity 10, thereby improving the reliability of the sound generating device 100.
  • the basin frame 1 includes a basin frame side wall 11 and a basin frame leg 12 formed by extending the basin frame side wall 11 toward the yoke body 311, and the basin frame leg 12 abuts And fixed to the yoke body 311.
  • This structure makes the assembling of the basin frame 1 and the yoke 31 easier and facilitates the assembly of the sound emitting device 100, thereby making the process simple.
  • the structure is fixed by the connection of the basin frame legs 12, The space of the magnetic circuit system 33 is not occupied, and the utilization rate of the internal space is ensured, so that the acoustic performance of the sound generating device 100 is good.
  • the first magnetic steel 32 has a ring shape. Please refer to FIG. 10.
  • the first magnetic steel 32 is a hollow rectangle.
  • the shape of the first magnetic steel 32 also has a ring shape.
  • a fracture 320b is provided in the first magnetic steel 32b, wherein the first magnetic steel 32b has a hollow rectangular shape or a hollow circular ring shape.
  • FIG. 10(c) there are two first magnets 32c, and the two first magnets 32c are arranged opposite to each other.
  • the first magnets 32d include four, of which two first magnets 32d are arranged on opposite sides of the long axis of the sounding device, and the other two The first magnetic steel 32d is arranged on opposite sides of the short axis of the sound emitting device.
  • the second magnetic steel 33 includes two and is arranged at intervals on opposite sides of the long axis of the first magnetic steel 32.
  • the magnetic circuit system 3 also includes a ring-shaped first clamping plate 34 stacked on the first magnetic steel 32, a second clamping plate 35 stacked on the second magnetic steel 33, and a second clamping plate 35 stacked on the second magnetic steel 33.
  • the second clamping plate 35 includes two first bodies 351 fixed to the second magnetic steel 33, and clamping plates bent and extended from opposite ends of the first body 351 toward the upper diaphragm 21 respectively.
  • the extension body 352 and the second body 353 connected between the splint extension bodies 352 on the adjacent side.
  • the splint extension body 352 is respectively connected between the adjacent first body 351 and the second body 353, and the first body 351, the splint extension body 352 and the second body 353 are jointly enclosed In a ring shape, the second body 353 is closer to the upper diaphragm 21 than the first body 351 to form a space for accommodating the elastic member 25.
  • the above structure makes full use of the space between the second clamping plate 35 and the upper diaphragm 21, effectively improves the magnetic field strength of the magnetic circuit system, and improves the magnetic driving force and symmetry of the magnetic circuit system, thereby enhancing the The acoustic performance and reliability of the sound emitting device 100 are described.
  • the sound generating device of the present invention sets the yoke of the magnetic circuit system with a yoke body and a yoke support table protruding from the yoke body to the direction of the diaphragm, and fixes the first magnetic steel to the yoke body , And set the yoke support table on the inner side of the first magnetic steel, while the voice coil is arranged around the outer side of the first magnetic steel, and the skeleton body of the skeleton is respectively extended from the inner skeleton and the skeleton extension part, and the inner skeleton is extended to The inner side of the first magnetic steel, and the lower diaphragm is arranged on the inner side of the first magnetic steel and connected between the inner frame and the yoke support platform.
  • the lower diaphragm of the present invention is arranged on the inner side of the first magnetic steel. Larger, so that the lower diaphragm accommodated in the space can be designed to be larger, so that the lateral swing effect of the voice coil when vibrating is good, and the sound generating device has good stability.
  • this structure on the one hand makes the magnetic gap formed by the first magnetic steel and the second magnetic steel larger, and on the other hand, it also eliminates the influence of the lower diaphragm on the magnetic gap, thereby eliminating the design of the magnetic circuit system. The limitation of, makes the magnetic circuit better, and effectively improves the acoustic performance of the sound emitting device.

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

Abstract

本发明提供了一种发声器件，其包括振动系统和磁路系统，振动系统包括上振膜、音圈、下振膜以及骨架，磁路系统包括磁轭和第一磁钢，磁轭包括磁轭本体和由磁轭本体凸出延伸的磁轭支撑台，第一磁钢固定于磁轭本体，音圈环绕设置于第一磁钢的外侧，磁轭支撑台设置于第一磁钢内侧；骨架包括固定于上振膜的骨架本体、由骨架本体弯折延伸的内骨架以及由骨架本体弯折延伸的并与音圈连接的骨架延伸部，内骨架延伸至第一磁钢的内侧，下振膜设置于第一磁钢的内侧并连接于内骨架和磁轭支撑台之间。与相关技术相比，本发明的发声器件的稳定性好且声学性能优。

Description

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，其中之一便是高品质的音乐功能，因此，用于播放声音的发声器件被大量应用到现在的智能移动设备之中。
相关技术的所述发声器件包括盆架和分别固定于所述盆架的振动系统及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上振膜、固定于所述上振膜并插设于所述磁间隙以驱动所述振膜振动发声的音圈、与所述上振膜相对设置的下振膜以及分别连接所述上振膜和所述下振膜的骨架，所述下振膜的一端固定于所述盆架，另一端固定于所述音圈远离所述振膜一端的下振膜。
 技术问题
然而，相关技术中所述发声器件中，所述下振膜固定于所述音圈的相对两端，虽然所述下振膜可有效防止所述音圈振动时的横向摆动，但其夹设于所述盆架和所述音圈之间的空间较小导致所述音圈的稳定性差，且所述磁路系统的体积也受限，从而使得所述发声器件的声学性改善受限。
因此，实有必要提供一种新的发声器件解决上述技术问题。
 技术解决方案
本发明的目的在于提供一种稳定性好且声学性能优的发声器件。
为了达到上述目的，本发明提供了一种发声器件，其包括振动系统和驱动所述振动系统振动发声的磁路系统，所述振动系统包括用于振动发声的上振膜、驱动所述上振膜振动发声的音圈、与所述上振膜相对间隔设置的下振膜以及设置于所述上振膜和所述下振膜之间的骨架，所述磁路系统包括与所述上振膜相对间隔设置的磁轭和固定于所述磁轭的第一磁钢，所述磁轭包括磁轭本体和由所述磁轭本体向所述上振膜的方向凸出延伸的磁轭支撑台，所述第一磁钢固定于所述磁轭本体，所述音圈环绕设置于所述第一磁钢的外侧，所述磁轭支撑台设置于所述第一磁钢的内侧；所述骨架包括固定于所述上振膜的骨架本体、由所述骨架本体向所述磁轭的方向弯折延伸的内骨架以及由所述骨架本体朝向所述音圈弯折延伸的并与所述音圈连接的骨架延伸部，所述内骨架延伸至所述第一磁钢的内侧；所述下振膜设置于所述第一磁钢的内侧并连接于所述内骨架和所述磁轭支撑台之间。
优选的，所述磁路系统还包括固定于所述磁轭本体的第二磁钢，所述第二磁钢设置于所述第一磁钢的外侧并与所述第一磁钢间隔形成磁间隙，所述音圈插设于所述磁间隙。
优选的，所述骨架本体呈环状，所述内骨架包括由所述骨架本体的内周缘弯折延伸的内骨架本体和由所述内骨架本体向靠近所述磁轭支撑台的方向弯折延伸的内骨架固定部，所述内骨架固定部与所述下振膜连接；所述骨架延伸部由所述骨架本体的外周缘弯折延伸形成。
优选的，所述骨架延伸部包括由所述骨架本体弯折延伸的骨架延伸部本体和由所述骨架延伸部本体朝远离所述内骨架方向弯折延伸的骨架延伸固定部，所述骨架延伸固定部与所述音圈靠近所述上振膜的一端固定连接。
优选的，所述骨架还包括由所述骨架延伸固定部远离所述骨架延伸部本体的一端朝向所述磁轭的方向弯折延伸的外骨架，所述外骨架设置于所述音圈的外侧；所述发声器件还包括用于支撑所述振动系统和所述磁路系统的盆架以及设置于所述音圈外侧的弹性件，所述弹性件的一端固定于所述外骨架，所述弹性件的另一端固定于所述盆架。
优选的，所述外骨架包括由所述骨架延伸固定部弯折延伸的设置于所述音圈的外侧的外骨架本体和由所述外骨架本体远离所述骨架延伸固定部的一端向远离所述音圈方向弯折延伸的外骨架固定部，所述弹性件固定于所述外骨架固定部。
优选的，所述音圈包括音圈本体和由所述音圈本体延伸的音圈引线；所述弹性件为柔性电路板，所述外骨架设有贯穿其上的引线孔，所述音圈引线穿过所述引线孔并与所述弹性件电连接。
优选的，所述音圈还包括由所述音圈本体远离所述上振膜一端的靠近所述外骨架的周缘凹陷形成的避让台阶，所述音圈引线由所述避让台阶处引出。
优选的，所述第一磁钢呈中空的矩形，所述第二磁钢包括两个且分别设置于所述第一磁钢的长轴的相对两侧，所述磁路系统还包括叠设于所述第一磁钢的呈中空环状的第一夹板、叠设于所述第二磁钢的第二夹板以及叠设于所述第二夹板的辅助磁钢，所述第二夹板包括固定于所述第二磁钢的两个第一本体、由所述第一本体的相对两端分别朝靠近所述上振膜方向弯折延伸的夹板延伸体以及连接在相邻一侧所述夹板延伸体之间的第二本体，所述夹板延伸体分别连接在相邻所述第一本体与所述第二本体之间，所述第一本体、所述夹板延伸体及所述第二本体共同围成环状，所述第二本体相较所述第一本体更靠近所述上振膜。
优选的，所述发声器件还包括阻尼件，所述阻尼件、所述盆架、所述上振膜及所述磁轭共同围成内声腔，所述内声腔通过所述阻尼件与外界连通；所述阻尼件包括固定于所述磁轭的阻尼件本体、由所述阻尼件本体向所述盆架的方向弯折延伸的阻尼件延伸部以及由所述阻尼件延伸部弯折延伸并固定于所述盆架的阻尼件连接部，所述磁轭还包括由所述磁轭本体向远离所述磁轭支撑台的方向延伸的磁轭延伸部，所述阻尼件本体固定于所述磁轭延伸部远离所述上振膜的一侧。
 有益效果
与相关技术相比，本发明的发声器件将磁路系统的磁轭设置磁轭本体和由磁轭本体向上振膜方向凸出的磁轭支撑台，并将第一磁钢固定于磁轭本体，并将磁轭支撑台设置于第一磁钢的内侧，同时音圈环绕设置于第一磁钢的外侧，并将骨架的骨架本体分别延伸出内骨架和骨架延伸部，将内骨架延伸至第一磁钢的内侧，并将下振膜设置于所述第一磁钢的内侧并连接于内骨架和磁轭支撑台之间。与相关技术将下振膜设置于盆架和音圈之间的空间的技术方案相比，本发明的下振膜设置于第一磁钢的内侧，由于第一磁钢的内侧围成的空间内较大，从而使得收容于该空间的下振膜可以设计得比较大，从而使得音圈振动时的横向摆动效果好，从而发声器件稳定性好。另外，该结构一方面使得第一磁钢与第二磁钢间隔形成的磁间隙较大，另外一方面同时消除了所述下振膜对磁间隙的影响，从而消除了对磁路系统的设计的限制，使磁路更优，有效提高了所述发声器件的声学性能。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本发明发声器件的立体结构示意图；
图2为本发明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C所示部分的放大图；
图5为沿图1中B-B线的剖示图；
图6为图5的发声器件的另一种实施方式的剖示图；
图7为本发明发声器件的所述下振膜的立体结构示意图；
图8为本发明发声器件的所述音圈的立体结构示意图；
图9为本发明发声器件的骨架的立体结构示意图；
图10为图3中的发声器件的第一磁钢的四种实施例的结构示意图。
 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。
请同时参阅图1-10，本发明提供了一种发声器件100，其包括振动系统2、磁路系统3以及阻尼件4，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具体有磁间隙30。
本实施方式中，所述发声器件100还包括用于分别支撑所述振动系统2和所述磁路系统3的盆架1。
所述振动系统2包括用于振动发声的上振膜21、与所述上振膜21相对间隔设置的下振膜22、插设于所述磁间隙30以驱动所述上振膜21振动发声的音圈23。本实施方式中，所述振动系统2固定于所述盆架1设置。具体的，所述上振膜21固定于所述盆架1。
本实施方式中，所述磁路系统3包括固定于所述盆架1并与所述上振膜21相对间隔设置的磁轭31以及分别固定于所述磁轭31的第一磁钢32和第二磁钢33，所述第二磁钢33与所述第一磁钢32间隔形成所述磁间隙30。
所述磁轭31包括磁轭本体311和由所述磁轭本体311向所述上振膜21的方向凸出延伸形成的磁轭支撑台312。在本实施方式中，所述磁轭本体311固定于所述盆架1并与所述上振膜21相对间隔设置。所述磁轭支撑台312设置于所述磁轭本体311的中间位置。所述第一磁钢32和所述第二磁钢33分别固定于所述磁轭本体311，所述第二磁钢33设置于所述第一磁钢32的外侧并与所述第一磁钢32间隔形成所述磁间隙30。所述音圈23环绕设置于所述第一磁钢32的外侧，所述音圈23插设于所述磁间隙30。所述磁轭支撑台312设置于所述第一磁钢32内侧，该结构使得所述第一磁钢32与所述磁轭支撑台312之间形成一个空间，一方面使得所述第一磁钢32围成环状结构，有利于增大所述磁路系统3的所述磁间隙30的空间，提高所述发声器件100的声学性能。
为了实现同时驱动所述上振膜21和所述下振膜22振动，所述振动系统2还包括分布与所述上振膜21和所述下振膜22连接的骨架24。
具体的，所述骨架24包括固定于所述上振膜21的骨架本体241、由所述骨架本体241向所述磁轭31的方向弯折延伸的内骨架242以及由所述骨架本体241朝向所述音圈23弯折延伸的并与所述音圈23连接的骨架延伸部243。
本实施方式中，所述上振膜21包括固定于所述盆架1的上固定部211、由所述上固定部211的周缘弯折延伸呈环状的上折环部212、由所述上折环部212向远离所述上固定部211的方向弯折延伸的上振动部213以及贴设固定于所述上振动部213的球顶214，所述上振动部213设有贯穿其上的通孔210，所述球顶214贴覆盖所述通孔210，所述骨架本体241固定于所述球顶214。
所述内骨架242延伸至所述第一磁钢32的内侧。所述下振膜22设置于所述第一磁钢32的内侧并连接于所述内骨架242和所述磁轭支撑台312之间。
请参考图5所示，本实施方式中，所述下振膜22呈环状。所述下振膜22设置于所述第一磁钢32的内侧并与所述磁轭本体311间隔设置。所述下振膜22的外侧固定于所述内骨架242远离所述上振膜21的一端，所述下振膜22的内侧固定于所述磁轭支撑台312。上述结构使得所述音圈23驱动所述骨架24以带动所述上振膜21和所述下振膜22同时振动，即所述音圈23同时驱动所述骨架本体241和所述内骨架242以带动所述上振膜21和所述下振膜22同时振动，实现双振膜振动发声结构。更优的，相对于相关技术的下振膜22设置于所述盆架1和所述音圈23之间的空间，所述下振膜22设置于所述第一磁钢32围成的空间内较大，从而使得所述下振膜22可以设计得比较大，从而使得所述音圈23振动时的横向摆动效果好，从而使得所述发声器件100稳定性好。
 当然，不限于此，所述下振膜22分别固定于所述磁轭支撑台312和所述内骨架242的方式有很多种。请参图6所示，图6为图5的另一种实施方式并提供一种发声器件100a。该实施方式与图5的实施方式的区别在于：磁轭支撑台312a呈环状并设置于第一磁钢32a的内侧。下振膜22a的内侧固定于内骨架242a远离上振膜21a的一端，下振膜22a的外侧固定于磁轭支撑台312a。该结构同样从而使得下振膜22a可以设计得比较大，并且所述音圈23a振动时的横向摆动效果好，从而使得所述发声器件100a稳定性好。
本实施方式中，所述骨架本体241呈环状。所述内骨架242包括由所述骨架本体241的内周缘弯折延伸的内侧的内骨架本体2421和由所述内骨架本体2421向靠近所述磁轭支撑台312的方向弯折延伸的内骨架固定部2422。所述内骨架固定部2422与所述下振膜22连接。所述内骨架本体2421设置于第一磁钢32的内侧。具体的，所述内骨架固定部2422固定于所述下振膜22，在所述内骨架242上设置所述内骨架固定部2422实现增加结合面积以增加了所述内骨架固定部2422与所述下振膜22的连接强度，提高振动可靠性。
本实施方式中，所述下振膜22包括固定于所述磁轭支撑台312的第一下固定部221、由所述第一下固定部221的外周缘弯折延伸的呈环状的下折环部222以及由所述下折环部222的外周缘向所述第一磁钢32方向延伸的呈环状的第二下固定部223。所述下折环部222和所述第二下固定部223均与所述磁轭本体311间隔设置，所述内骨架固定部2422固定于所述第二下固定部223，该结构的所述下振膜22通过所述第一下固定部221和所述第二下固定部223分别固定于所述磁轭支撑台312和所述内骨架固定部242，从而实现所述下振膜22充分利用所述第一磁钢32围成的空间，从而使得所述下振膜22可以设计得比较大。
所述骨架延伸部243由所述骨架本体241弯折延伸形成。所述骨架延伸部243包括由所述骨架本体241弯折延伸的骨架延伸部本体2431和由所述骨架延伸部本体2431朝远离所述内骨架242方向弯折延伸的骨架延伸固定部2432。所述骨架延伸固定部2432与所述音圈23靠近所述上振膜21的一端固定连接。在所述骨架延伸部243上设置所述骨架延伸固定部2432实现增加结合面积以增加了所述骨架延伸固定部2432与所述上振膜21的连接强度，提高振动可靠性。
本实施方式中，所述骨架24还包括由所述骨架延伸固定部2432远离所述骨架延伸部本体2431的一端向所述磁轭31的方向弯折延伸的外骨架244。所述外骨架244设置于所述音圈23的外侧。具体的，所述外骨架244包括由所述骨架延伸固定部2432弯折延伸的设置于所述音圈23的外侧的外骨架本体2441和由所述外骨架本体2441远离所述骨架延伸固定部2432的一端向远离所述音圈23方向弯折延伸的外骨架固定部2442。在所述外骨架244上设置所述外骨架固定部2442实现增加结合面积。
本实施方式中，所述发声器件还包括弹性件25。所述弹性件25设置于所述音圈23外侧。所述弹性件25与所述上振膜21相对且间隔设置。具体的，所述弹性件25包括两个且分别位于所述第一磁钢32的短轴相对两侧。对称结构的所述弹性件25有利于抑制所述音圈23的摇摆并使所述音圈23平衡性好。
所述弹性件25的一端固定于所述外骨架244，所述弹性件25的另一端固定于所述盆架1。具体的，所述弹性件25固定于所述外骨架固定部2442。该结构有利于所述外骨架244通过所述弹性件25支撑固定于所述盆架1，从而更好的支撑所述上振膜21，使所述上振膜21的振动更优。同时，所述外骨架244与所述内骨架242分别设置于所述第一磁钢32的相对两侧，从而使得即所述骨架24抑制所述上振膜21摇摆的能力最优，从而使所述发声器件100的声学性能更优。
具体的，所述弹性件25包括固定于所述盆架1的第一固定臂251、与所述第一固定臂251间隔设置的第二固定臂252以及连接所述第一固定臂251和所述第二固定臂252的弹臂253，所述第一固定臂251固定于所述盆架1。所述外骨架固定部2442与所述第二固定臂252连接，所述弹性件25的结构有利于所述外骨架固定部2442抑制所述上振膜21摇摆。
为了更好配合所述弹性件25与所述外骨架固定部2442连接的结构，本实施方式中，所述音圈23包括音圈本体231、由所述音圈本体231远离所述上振膜21一端的靠近所述外骨架244的周缘凹陷形成的的避让台阶232以及由所述音圈本体231延伸的音圈引线233。所述避让台阶232的结构有利于所述弹性件25振动时候的可靠性高。
在本实施方式中，所述弹性件25为柔性电路板，所述外骨架244设有贯穿其上的引线孔2440。所述音圈引线233用于电连接且接收外部信号，所述音圈引线233穿过所述引线孔2440并与所述弹性件25电连接。具体的，所述音圈引线233由所述避让台阶232处引出。一方面用于提高所述振动系统2的振动强度和平衡，抑制摇摆，另一方面为所述音圈23引出至连接外部电源，避免了音圈引线结构引出电源时音圈引线容易断裂的风险。
本实施方式中，所述发声器件还包括阻尼件4，所述阻尼件4、所述盆架1、所述上振膜21及所述磁轭31共同围成内声腔10。所述内声腔10通过所述阻尼件4与外界连通。具体的，所述阻尼件4包括固定于所述磁轭31的阻尼件本体41、由所述阻尼件本体41向所述盆架1的方向弯折延伸的阻尼件延伸部42以及由所述阻尼件延伸部42弯折延伸并固定于所述盆架1的阻尼件连接部43。所述磁轭31还包括由所述磁轭本体311向远离所述磁轭支撑台312的方向延伸的磁轭延伸部313，所述阻尼件本体41固定于所述磁轭延伸部313远离所述上振膜21的一侧。所述阻尼件4相当于设置一个台阶结构，该结构使所述磁轭31、所述阻尼件本体41及所述阻尼件延伸部42形成磁碗外漏结构，从而有效扩大了所述发声器件100应用，同时也防止外界灰尘等杂质进入到所述内声腔10内，从而提高了所述发声器件100可靠性。
本实施方式中，所述盆架1包括盆架侧壁11和由所述盆架侧壁11向所述磁轭本体311的方向延伸形成的盆架支脚12，所述盆架支脚12抵接于且固定于所述磁轭本体311。该结构使得盆架1与所述磁轭31的装配更为简单，有利于所述发声器件100的组装，从而使得工艺简单，另外一方面，该结构通过所述盆架支脚12的连接固定，不占用所述磁路系统33的空间，保证内部空间使用率，从而使得所述发声器件100的声学性能好。
本实施方式中，所述第一磁钢32呈环状。请参考图10所示，本实施方式中，如图10（a）中所示，所述第一磁钢32中空的矩形。当然，所述第一磁钢32的形状还有多种呈环形的情况。在另一种实施例中，如图10（b）中所示，第一磁钢32b中设置断口320b，其中，第一磁钢32b呈中空的矩形或中空的圆环形。在另外一种实施例中，如图10（c）中所示，第一磁钢32c包括两个，两个第一磁钢32c间隔相对设置。在其他一种实施例中，如图10（d）中所示，第一磁钢32d包括四个，其中两个第一磁钢32d设置于发声器件的长轴的相对两侧，另两个第一磁钢32d设置于发声器件的短轴的相对两侧。
本实施方式中，所述第二磁钢33包括两个且间隔设置于所述第一磁钢32的长轴相对两侧。所述磁路系统3还包括叠设于所述第一磁钢32的呈环状的第一夹板34、叠设于所述第二磁钢33的第二夹板35以及叠设于所述第二夹板35的辅助磁钢36。所述辅助磁钢36的设置则可尽大程度的保持磁路系统3的结构体积最大化，从而保持磁场强度。
所述第二夹板35包括固定于所述第二磁钢33的两个第一本体351、由所述第一本体351的相对两端分别朝靠近所述上振膜21方向弯折延伸的夹板延伸体352以及连接在相邻一侧所述夹板延伸体352之间的第二本体353。所述夹板延伸体352分别连接在相邻所述第一本体351与所述第二本体353之间，所述第一本体351、所述夹板延伸体352及所述第二本体353共同围成环状，所述第二本体353相较所述第一本体351更靠近所述上振膜21，从而形成让位空间，用于收容所述弹性件25。上述结构使得所述第二夹板35与所述上振膜21之间的空间充分利用，有效提高了磁路系统的磁场强度，提升了磁路系统的磁驱动力和对称性，从而增强了所述发声器件100的声学性能和可靠性。
与相关技术相比，本发明的发声器件将磁路系统的磁轭设置磁轭本体和由磁轭本体向上振膜方向凸出的磁轭支撑台，并将第一磁钢固定于磁轭本体，并将磁轭支撑台设置于第一磁钢的内侧，同时音圈环绕设置于第一磁钢的外侧，并将骨架的骨架本体分别延伸出内骨架和骨架延伸部，将内骨架延伸至第一磁钢的内侧，并将下振膜设置于所述第一磁钢的内侧并连接于内骨架和磁轭支撑台之间。与相关技术将下振膜设置于盆架和音圈之间的空间的技术方案相比，本发明的下振膜设置于第一磁钢的内侧，由于第一磁钢的内侧围成的空间内较大，从而使得收容于该空间的下振膜可以设计得比较大，从而使得音圈振动时的横向摆动效果好，从而发声器件稳定性好。另外，该结构一方面使得第一磁钢与第二磁钢间隔形成的磁间隙较大，另外一方面同时消除了所述下振膜对磁间隙的影响，从而消除了对磁路系统的设计的限制，使磁路更优，有效提高了所述发声器件的声学性能。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (10)

  1. 一种发声器件，其包括振动系统和驱动所述振动系统振动发声的磁路系统，所述振动系统包括用于振动发声的上振膜、驱动所述上振膜振动发声的音圈、与所述上振膜相对间隔设置的下振膜以及设置于所述上振膜和所述下振膜之间的骨架，所述磁路系统包括与所述上振膜相对间隔设置的磁轭和固定于所述磁轭的第一磁钢，其特征在于，所述磁轭包括磁轭本体和由所述磁轭本体向所述上振膜的方向凸出延伸的磁轭支撑台，所述第一磁钢固定于所述磁轭本体，所述音圈环绕设置于所述第一磁钢的外侧，所述磁轭支撑台设置于所述第一磁钢的内侧；所述骨架包括固定于所述上振膜的骨架本体、由所述骨架本体向所述磁轭的方向弯折延伸的内骨架以及由所述骨架本体朝向所述音圈弯折延伸的并与所述音圈连接的骨架延伸部，所述内骨架延伸至所述第一磁钢的内侧；所述下振膜设置于所述第一磁钢的内侧并连接于所述内骨架和所述磁轭支撑台之间。
  2. 根据权利要求1所述的发声器件，其特征在于，所述磁路系统还包括固定于所述磁轭本体的第二磁钢，所述第二磁钢设置于所述第一磁钢的外侧并与所述第一磁钢间隔形成磁间隙，所述音圈插设于所述磁间隙。
  3. 根据权利要求1所述的发声器件，其特征在于，所述骨架本体呈环状，所述内骨架包括由所述骨架本体的内周缘弯折延伸的内骨架本体和由所述内骨架本体向靠近所述磁轭支撑台的方向弯折延伸的内骨架固定部，所述内骨架固定部与所述下振膜连接；所述骨架延伸部由所述骨架本体的外周缘弯折延伸形成。
  4. 根据权利要求1所述的发声器件，其特征在于，所述骨架延伸部包括由所述骨架本体弯折延伸的骨架延伸部本体和由所述骨架延伸部本体朝远离所述内骨架方向弯折延伸的骨架延伸固定部，所述骨架延伸固定部与所述音圈靠近所述上振膜的一端固定连接。
  5. 根据权利要求4所述的发声器件，其特征在于，所述骨架还包括由所述骨架延伸固定部远离所述骨架延伸部本体的一端朝向所述磁轭的方向弯折延伸的外骨架，所述外骨架设置于所述音圈的外侧；所述发声器件还包括用于支撑所述振动系统和所述磁路系统的盆架以及设置于所述音圈外侧的弹性件，所述弹性件的一端固定于所述外骨架，所述弹性件的另一端固定于所述盆架。
  6. 根据权利要求5所述的发声器件，其特征在于，所述外骨架包括由所述骨架延伸固定部弯折延伸的设置于所述音圈的外侧的外骨架本体和由所述外骨架本体远离所述骨架延伸固定部的一端向远离所述音圈方向弯折延伸的外骨架固定部，所述弹性件固定于所述外骨架固定部。
  7. 根据权利要求5所述的发声器件，其特征在于，所述音圈包括音圈本体和由所述音圈本体延伸的音圈引线；所述弹性件为柔性电路板，所述外骨架设有贯穿其上的引线孔，所述音圈引线穿过所述引线孔并与所述弹性件电连接。
  8. 根据权利要求7所述的发声器件，其特征在于，所述音圈还包括由所述音圈本体远离所述上振膜一端的靠近所述外骨架的周缘凹陷形成的避让台阶，所述音圈引线由所述避让台阶处引出。
  9. 根据权利要求2所述的发声器件，其特征在于，所述第一磁钢呈中空的矩形，所述第二磁钢包括两个且分别设置于所述第一磁钢的长轴的相对两侧，所述磁路系统还包括叠设于所述第一磁钢的呈中空环状的第一夹板、叠设于所述第二磁钢的第二夹板以及叠设于所述第二夹板的辅助磁钢，所述第二夹板包括固定于所述第二磁钢的两个第一本体、由所述第一本体的相对两端分别朝靠近所述上振膜方向弯折延伸的夹板延伸体以及连接在相邻一侧所述夹板延伸体之间的第二本体，所述夹板延伸体分别连接在相邻所述第一本体与所述第二本体之间，所述第一本体、所述夹板延伸体及所述第二本体共同围成环状，所述第二本体相较所述第一本体更靠近所述上振膜。
  10. 根据权利要求5所述的发声器件，其特征在于，所述发声器件还包括阻尼件，所述阻尼件、所述盆架、所述上振膜及所述磁轭共同围成内声腔，所述内声腔通过所述阻尼件与外界连通；所述阻尼件包括固定于所述磁轭的阻尼件本体、由所述阻尼件本体向所述盆架的方向弯折延伸的阻尼件延伸部以及由所述阻尼件延伸部弯折延伸并固定于所述盆架的阻尼件连接部，所述磁轭还包括由所述磁轭本体向远离所述磁轭支撑台的方向延伸的磁轭延伸部，所述阻尼件本体固定于所述磁轭延伸部远离所述上振膜的一侧。
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