WO2024044923A1 - 同轴扬声器 - Google Patents

同轴扬声器 Download PDF

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Publication number
WO2024044923A1
WO2024044923A1 PCT/CN2022/115650 CN2022115650W WO2024044923A1 WO 2024044923 A1 WO2024044923 A1 WO 2024044923A1 CN 2022115650 W CN2022115650 W CN 2022115650W WO 2024044923 A1 WO2024044923 A1 WO 2024044923A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
magnetic
voice coil
fixed
support ring
Prior art date
Application number
PCT/CN2022/115650
Other languages
English (en)
French (fr)
Other versions
WO2024044923A9 (zh
Inventor
任璋
钟志威
宋威
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 PCT/CN2022/115650 priority Critical patent/WO2024044923A1/zh
Priority to US18/073,583 priority patent/US20240073614A1/en
Publication of WO2024044923A1 publication Critical patent/WO2024044923A1/zh
Publication of WO2024044923A9 publication Critical patent/WO2024044923A9/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Definitions

  • the utility model relates to the field of electroacoustics, in particular to a coaxial speaker.
  • Coaxial speakers refer to speakers that integrate a tweeter unit and a woofer unit, and the tweeter unit and the woofer unit are coaxially arranged.
  • the sound sources of the tweeter unit and woofer unit of the coaxial speaker can be located on the front of the coaxial speaker, that is, the sound emission direction of the two speaker units is the same, or they can be located on the front and back of the coaxial speaker, that is, the sound emission direction of the two speaker units Not the same as above.
  • the tweeter unit and the woofer unit of the coaxial speaker are located on the same side of the coaxial speaker.
  • the sound film of the tweeter unit and the sound film of the woofer unit are both pressed from the same material.
  • the sound film of the tweeter unit and the sound film of the woofer unit are independent vibration spaces. Under limited size control, the effective vibration area of the diaphragm will be limited and the performance will be poor.
  • the purpose of this utility model is to provide a coaxial speaker in which the high and low frequency diaphragms can be flexibly adjusted and the vibration area of the diaphragm is increased.
  • the present invention provides a coaxial speaker, which includes a support ring, a magnetic circuit system fixed below the support ring, a first vibration system fixed inside the support ring, and a first vibration system installed on the inside of the support ring.
  • a second vibration system is provided outside the ring and surrounding the first vibration system.
  • the first vibration system and the second vibration system are coaxially arranged.
  • the first vibration system includes a first diaphragm and drives the second vibration system.
  • a first voice coil with a diaphragm that vibrates and produces sound.
  • the second vibration system includes a second diaphragm and a second voice coil that drives the second diaphragm to vibrate and produce sound.
  • the magnetic circuit system is provided with a first magnetic gap and a second magnetic gap located outside the first magnetic gap, the first voice coil is at least partially inserted in the first magnetic gap, and the second voice coil is at least partially inserted in the second magnetic gap,
  • the first diaphragm is used for high-pitched sound
  • the second diaphragm is used for bass sound.
  • the support ring includes a first end fixedly connected to the first diaphragm, and a first end fixedly connected to the magnetic circuit system. and a connecting portion connected to the first end in an outwardly expanding direction from the second end, and the first diaphragm and the second diaphragm are in the coaxial speaker The projected parts in the vibration directions overlap each other.
  • the first diaphragm includes a first dome, a first fold ring surrounding the first dome, and a first fixing part fixedly connected to the first end of the support ring, and the second vibrator
  • the film includes a second fixing part fixed to the support ring and/or the magnetic circuit system and a second folding ring bent and extended from the second fixing part.
  • the second vibration system includes a voice coil bobbin connecting the second diaphragm and the second voice coil, and the second diaphragm further includes a ring surrounding the second ring and connected to the second voice coil.
  • the third folding ring is arranged at intervals. One side of the voice coil frame is connected to the second folding ring, and the other side is connected to the third folding ring.
  • the second folding ring and the third folding ring are integrally hot-pressed and fixed to the voice coil frame by silicone rubber material, and the second diaphragm is glued and fixed to the support ring and/or the magnetic circuit. system.
  • the second folding ring and the third folding ring are glued and fixed to the voice coil bobbin, and the second diaphragm is glued and fixed to the support ring and/or the magnetic circuit system.
  • the first diaphragm is glued and fixed to the support ring.
  • the magnetic circuit system includes a first magnet, a second magnet arranged around the outside of the first magnet, a third magnet arranged below the second magnet, and a third magnet arranged around the first magnet.
  • the fourth magnetic steel outside the third magnetic steel and the magnetic conductive plate sandwiched between the second magnetic steel and the third magnetic steel, and the first magnetic steel and the second magnetic steel form a
  • the first magnetic gap, the second magnetic steel, the magnetic conductive plate, and the third magnetic steel are stacked and form the second magnetic gap with the fourth magnetic steel.
  • the coaxial speaker includes an insert supporting the first magnet and a first flexible circuit board fixed between the insert and the magnetic circuit system, the first voice coil and the The first flexible circuit board is electrically connected, and the first flexible circuit board includes a positioning part fixed to the magnetic circuit system, a cantilever extending from the positioning part, and a joint part formed on the cantilever, so The insert part is pressed against the positioning part.
  • the first vibration system further includes a support frame connecting the first voice coil and the first flexible circuit board, and the support frame includes support legs fixed to the joint portion of the first flexible circuit board,
  • the support frame is provided with a notch, and the first voice coil has a lead wire extending through the notch and fixed to the lower surface of the first flexible circuit board joint part.
  • the insert has an extension wall, and the positioning portion of the first flexible circuit board is fixed to the extension wall.
  • a coaxial speaker of the present invention includes a support ring, a magnetic circuit system fixed below the support ring, a first vibration system fixed inside the support ring, and a first vibration system installed on the support ring.
  • a second vibration system is provided outside the ring and surrounding the first vibration system.
  • the first vibration system and the second vibration system are coaxially arranged.
  • the first vibration system includes a first diaphragm and drives the second vibration system.
  • a first voice coil with a diaphragm that vibrates and produces sound.
  • the second vibration system includes a second diaphragm and a second voice coil that drives the second diaphragm to vibrate and produce sound.
  • the magnetic circuit system is provided with a first magnetic gap and a second magnetic gap located outside the first magnetic gap, the first voice coil is at least partially inserted in the first magnetic gap, and the second voice coil is at least partially inserted in the second magnetic gap,
  • the first diaphragm is used for high-pitched sound
  • the second diaphragm is used for bass sound.
  • the support ring includes a first end fixedly connected to the first diaphragm, and a first end fixedly connected to the magnetic circuit system. and a connecting portion connected to the first end in an outwardly expanding direction from the second end, and the first diaphragm and the second diaphragm are in the coaxial speaker The projected parts in the vibration directions overlap each other.
  • the coaxial speaker of the present utility model provides bass sound effects by setting up a ring-shaped bass vibration system.
  • the treble vibration system is arranged inside the bass vibration system to provide treble sound effects.
  • the bass and treble form a coaxial full-band speaker to provide high-quality sound effects.
  • the bass is The diaphragm and the treble diaphragm can be designed and formed separately.
  • the material and thickness of the treble and bass diaphragms can be adjusted separately according to the different characteristics of the bass and treble, making it more flexible in use.
  • the bass diaphragm and the treble diaphragm are as mentioned above.
  • the projections in the vibration direction of the coaxial speakers overlap each other.
  • the treble diaphragm design uses the Z-direction vibration space of the bass diaphragm to increase the vibration area of the diaphragm compared to conventional designs to improve performance.
  • Figure 1 is a schematic three-dimensional structural diagram of the coaxial speaker of the present utility model
  • Figure 2 is a partially exploded view of the coaxial speaker shown in Figure 1;
  • Figure 3 is another partially exploded view of the coaxial speaker shown in Figure 1;
  • Figure 4 is another partially exploded view of the coaxial speaker shown in Figure 1;
  • Figure 5 is an exploded view of the coaxial speaker shown in Figure 1;
  • Figure 6 is a perspective view of some components of the coaxial speaker shown in Figure 1;
  • Figure 7 is a cross-sectional view along line A-A in Figure 1;
  • FIG. 8 is a cross-sectional view along line B-B in FIG. 1 .
  • the present invention provides a coaxial speaker 100, which includes a support ring 1, a magnetic circuit system 2 fixed below the support ring 1, and a magnetic circuit system 2 fixed on the inside of the support ring 1.
  • the first flexible circuit board 7 fixed by the insert 6, the elastic component 8 fixed to the basin frame 5, the second vibration system 4 surrounds the outside of the first vibration system 3 and is in contact with the first vibration system.
  • System 3 coaxial setup which includes a support ring 1, a magnetic circuit system 2 fixed below the support ring 1, and a magnetic circuit system 2 fixed on the inside of the support ring 1.
  • the outer circumference of the support ring 1 is roughly rectangular and the overall shape is horn-shaped.
  • the support ring includes a first end 11 and a second end 12 fixedly connected to the magnetic circuit system 2 and a second end 12 connected from the second end.
  • the portion 12 is connected to the connecting portion 13 of the first end portion 11 in an outwardly expanding direction, and the size of the first end portion 11 is larger than the size of the second end portion 12 .
  • the magnetic circuit system 2 includes a first magnet 21, a second magnet 22 arranged around the outside of the first magnet 21, a third magnet 23 arranged below the second magnet 22, and a second magnet 23 arranged around the outside of the first magnet 21.
  • the fourth magnetic steel 24 outside the third magnetic steel 23, the magnetic conductive plate 25 sandwiched between the second magnetic steel 22 and the third magnetic steel 23, and the first magnetic steel are covered with the fourth magnetic steel 24.
  • the second magnetic gap 202 is provided outside the first magnetic gap 201 .
  • the first magnet 21, the second magnet 22, the third magnet 23 and the fourth magnet 24 are magnetized along the vibration direction of the coaxial speaker 100, and the first magnet 21 and the second magnet are The magnetization directions of the steel 22 are opposite, the magnetization directions of the second magnet steel 22 and the third magnet steel 23 are opposite, and the magnetization directions of the third magnet steel 23 and the fourth magnet steel 24 are opposite.
  • the second magnetic steel 22, the third magnetic steel 23, the fourth magnetic steel 24, the magnetic permeable plate 25, the second pole core 27, the third pole core 28, and the yoke 29 are all hollow rings. structure.
  • the fourth magnet 24 can also be a split type magnet.
  • the first vibration system 3 includes a first diaphragm 31 , a first voice coil 32 that drives the first diaphragm 31 to vibrate and produce sound, and a support frame 33 that supports the first voice coil 32 .
  • the ring 32 is at least partially inserted into the first magnetic gap 201 .
  • the first diaphragm 31 is an integrated diaphragm, which can be made by a conventional lamination method.
  • the first diaphragm 31 is used to emit high-pitched sound, and its sound emitting direction is upward along the vibration direction, that is, the front of the coaxial speaker 100 speak out.
  • the first diaphragm 31 includes a first dome 311, a first folding ring 312 arranged around the first dome 311, and a first fixing part 313 fixedly connected to the first end 11 of the support ring 1,
  • the first fixing part 313 is attached and fixed to the upper surface of the first end part 11 .
  • the first dome 311, the first folding ring 312, and the first fixing part 313 can be made of silicone, rubber, polyetheretherketone (PEEK), polyethylene naphthalate (PEN) or polyethylene terephthalate. It is made of polyol ester (PET) and other materials.
  • PEEK polyetheretherketone
  • PEN polyethylene naphthalate
  • PET polyol ester
  • the first voice coil 32 has a lead 321 .
  • the support frame 33 includes a support portion 331 that supports the first voice coil 32 and a support leg 332 located at the bottom end of the support frame 33 .
  • the support frame 33 is provided with a notch 333 .
  • the second vibration system 4 includes a second diaphragm 41, a second voice coil 42 that drives the second diaphragm 41 to vibrate and produce sound, and a voice coil bobbin that connects the second diaphragm 41 and the second voice coil. 43.
  • the second diaphragm 41 is located below the first diaphragm 31 , that is, the second diaphragm 41 is closer to the yoke 29 than the first diaphragm 31 .
  • the second voice coil 42 is at least partially inserted in the second magnetic gap 202 .
  • the second diaphragm 41 is used for bass sound emitting, and its sound emitting direction is upward along the vibration direction, that is, it emits sound from the front of the coaxial speaker 100 .
  • the second diaphragm 41 includes a second fixing part 411 fixed to the support ring 1 and/or the magnetic circuit system 2 , a second folding ring 412 extending from the second fixing part 411 , and a surrounding ring 412 .
  • the second folding ring 412 and a third folding ring 413 spaced apart from the second folding ring 412 and a third fixing portion extending from a side of the third folding ring 413 away from the second folding ring 412 414.
  • One side of the voice coil bobbin 43 is connected to the second folding ring 412 , and the other side is connected to the third folding ring 413 .
  • the second fixing part 411 is fit and fixed on the upper surface of the second magnet 22 , and/or the second fixing part 411 is fit and fixed on the outer surface of the second end 12 of the support ring 1 .
  • the second fixing part 411, the second folding ring 412, the third folding ring 413, and the third fixing part 414 are integrally hot-pressed and fixed to the voice coil bobbin 43 by silicone rubber material, and then the entire second vibrator is
  • the membrane 41 is glued and fixed to the support ring 1 and/or the second magnet 22 .
  • the second fixing part 411, the second folding ring 412, the third folding ring 413, and the third fixing part 414 are glued and fixed to the voice coil bobbin 43, and then the entire second diaphragm 41 is glued and fixed to the voice coil bobbin 43.
  • the projection portions of the first diaphragm 31 and the second diaphragm 41 in the vibration direction of the coaxial speaker 100 overlap with each other.
  • the first folding ring 312 and the second folding ring 412 The projections in the vibration direction of the coaxial speaker 100 overlap each other.
  • the first diaphragm 31 occupies part of the space of the second diaphragm 41 on the Z axis, that is, the vertical vibration direction of the coaxial speaker 100.
  • the vibration space of the first diaphragm 31 and the second diaphragm 41 is increased to improve the acoustic performance of the coaxial speaker 100 .
  • the yoke 29 is provided with a relief recess 291 corresponding to the position of the second voice coil 42 to provide sufficient vibration space for the second voice coil 42 .
  • the basin frame 5 is a hollow annular structure.
  • the third fixing part 414 of the second diaphragm 41 is attached and fixed to the upper surface of the basin frame 5 , and is bent and extended to cover part of the outer side of the basin frame 5 .
  • the insert 6 supports the first magnet 22 and the first pole core 26 .
  • the insert 6 has extension walls 61 symmetrically arranged on both sides.
  • the first flexible circuit board 7 is fixed between the insert 6 and the magnetic circuit system 2 , the first voice coil 32 is electrically connected to the first flexible circuit board 7 , and the first flexible circuit board 7 is electrically connected to the first flexible circuit board 7 .
  • the circuit board 7 includes a positioning portion 71 fixed to the third magnet 23 of the magnetic circuit system 2 , a cantilever 72 extending from the positioning portion 71 , and a joint portion 73 formed on the cantilever 72 .
  • the extension arm 61 of the insert 6 is pressed against the middle part of the positioning part 71 , and the positioning part 71 is attached and fixed to the lower surface of the third magnet 23 .
  • Each positioning part 71 extends two cantilever arms 72 .
  • the opposite cantilever arms 72 on the two positioning parts 71 extend toward each other and are connected to the joint part 73 .
  • the support legs 332 of the support frame 33 are supported on the upper surface of the joint portion 73 of the first flexible circuit board 7 , and the leads 321 of the first voice coil 32 extend through the notches 333 and are fixed to the first The lower surface of the joint portion 73 of the flexible circuit board 7 .
  • the elastic component 8 connects the voice coil bobbin 43 and the basin frame 5 .
  • the elastic component 8 includes a second flexible circuit board 81 and a supporting diaphragm 82 connected to the second flexible circuit board 81 .
  • the ring 42 is electrically connected to the second flexible circuit board 81 .
  • the number of elastic components 8 is two, and they are arranged in the short axis direction of the coaxial speaker 100. In other embodiments, it may depend on the situation.
  • the voice coil bobbin 43 includes a bobbin flat plate portion 431, a first extension portion 432 extending from the bobbin flat plate portion 431 toward the second flexible circuit board 81 and connected to the second flexible circuit board 81, and
  • the frame flat plate portion 431 is bent toward a second extension portion 433 that extends toward the second voice coil 42 and is connected to the second voice coil 42 .
  • One side of the frame flat portion 431 is connected to the second folding ring 412 , and the other side is connected to the third folding ring 413 .
  • a coaxial speaker of the present invention includes a support ring, a magnetic circuit system fixed below the support ring, a first vibration system fixed inside the support ring, and a first vibration system installed on the support ring.
  • a second vibration system is provided outside the ring and surrounding the first vibration system.
  • the first vibration system and the second vibration system are coaxially arranged.
  • the first vibration system includes a first diaphragm and drives the second vibration system.
  • a first voice coil with a diaphragm that vibrates and produces sound.
  • the second vibration system includes a second diaphragm and a second voice coil that drives the second diaphragm to vibrate and produce sound.
  • the magnetic circuit system is provided with a first magnetic gap and a second magnetic gap located outside the first magnetic gap, the first voice coil is at least partially inserted in the first magnetic gap, and the second voice coil is at least partially inserted in the second magnetic gap,
  • the first diaphragm is used for high-pitched sound
  • the second diaphragm is used for bass sound.
  • the support ring includes a first end fixedly connected to the first diaphragm, and a first end fixedly connected to the magnetic circuit system. and a connecting portion connected to the first end in an outwardly expanding direction from the second end, and the first diaphragm and the second diaphragm are in the coaxial speaker The projected parts in the vibration directions overlap each other.
  • the coaxial speaker of the present utility model provides bass sound effects by setting up a ring-shaped bass vibration system.
  • the treble vibration system is arranged inside the bass vibration system to provide treble sound effects.
  • the bass and treble form a coaxial full-band speaker to provide high-quality sound effects.
  • the bass is The diaphragm and the treble diaphragm can be designed and formed separately.
  • the material and thickness of the treble and bass diaphragms can be adjusted separately according to the different characteristics of the bass and treble, making it more flexible in use.
  • the bass diaphragm and the treble diaphragm are as mentioned above.
  • the projections in the vibration direction of the coaxial speakers overlap each other.
  • the treble diaphragm design uses the Z-direction vibration space of the bass diaphragm to increase the vibration area of the diaphragm compared to conventional designs to improve performance.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

本实用新型提供了一种同轴扬声器，包括支撑环、磁路系统、位于支撑环内侧的第一振动系统及位于支撑环外侧的第二振动系统，第一振动系统与第二振动系统同轴设置，第一振动系统包括第一振膜及第一音圈，第二振动系统包括第二振膜及第二音圈，第一振膜用于高音发声，第二振膜用于低音发声，支撑环包括与第一振膜固定连接的第一端部、与磁路系统固定连接的第二端部以及自第二端部沿向外扩张的方向连接至第一端部的连接部，第一振膜与第二振膜在同轴扬声器的振动方向上的投影部分相互重叠。该同轴扬声器低音振膜与高音振膜分开成型，可单独调整高低音的膜料材质和厚度，高音振膜设计利用低音振膜Z向振动空间，增大了振动面积以提升性能。

Description

同轴扬声器 技术领域
本实用新型涉及电声领域，尤其涉及一种同轴扬声器。
 背景技术
同轴扬声器是指集成有高音扬声器单元和低音扬声器单元，且高音扬声器单元和低音扬声器单元同轴设置的扬声器。同轴扬声器的高音扬声器单元和低音扬声器单元的声源可位于同轴扬声器的正面，即两个扬声器单元的发声方向相同，也可位于同轴扬声器的正反面，即两个扬声器单元的发声方向不上同。
 技术问题
相关技术中的同轴扬声器的高音扬声器单元和低音扬声器单元位于同轴扬声器的同侧，高音单元的音膜和低音单元的音膜都是由同一种材料压制而成的，在产品的性能上就比较单一，难以调控。且高音单元的音膜和低音单元的音膜都是彼此独立的振动空间，先有限的尺寸控制下，振膜的有效振动面积会有所局限，性能欠佳。
因此，有必要提供一种新的同轴扬声器以解决上述技术问题。
 技术解决方案
本实用新型的目的在于提供一种高低音振膜可灵活调节且振膜振动面积增大的同轴扬声器。
为了达到上述目的，本实用新型提供了一种同轴扬声器，包括支撑环、固定于所述支撑环下方的磁路系统、固定于所述支撑环内侧的第一振动系统及设置于所述支撑环外侧且环绕所述第一振动系统设置的第二振动系统，所述第一振动系统与所述第二振动系统同轴设置，所述第一振动系统包括第一振膜及驱动所述第一振膜振动发声的第一音圈，所述第二振动系统包括第二振膜及驱动所述第二振膜振动发声的第二音圈，所述磁路系统设有第一磁间隙及位于第一磁间隙外侧的第二磁间隙，所述第一音圈至少部分插设于所述第一磁间隙内，所述第二音圈至少部分插设于所述第二磁间隙内，所述第一振膜用于高音发声，所述第二振膜用于低音发声，所述支撑环包括与所述第一振膜固定连接的第一端部、与所述磁路系统固定连接的第二端部以及自所述第二端部沿向外扩张的方向连接至所述第一端部的连接部，所述第一振膜与所述第二振膜在所述同轴扬声器的振动方向上的投影部分相互重叠。
优选的，所述第一振膜包括第一球顶、环绕所述第一球顶的第一折环及固定连接于所述支撑环第一端部的第一固定部，所述第二振膜包括固定于所述支撑环和/或所述磁路系统的第二固定部及自所述第二固定部弯折延伸的第二折环，所述第一折环与所述第二折环在所述同轴扬声器的振动方向上的投影部分相互重叠。
优选的，所述第二振动系统包括连接所述第二振膜与所述第二音圈的音圈骨架，所述第二振膜还包括环绕所述第二折环且与所述第二折环间隔设置的第三折环，所述音圈骨架的一侧与所述第二折环连接，另一侧与所述第三折环连接。
优选的，所述第二折环、第三折环由硅橡胶材料一体热压成型固定于所述音圈骨架，所述第二振膜胶合固定于所述支撑环和/或所述磁路系统。
优选的，所述第二折环、第三折环胶合固定于所述音圈骨架，所述第二振膜胶合固定于所述支撑环和/或所述磁路系统。
优选的，所述第一振膜胶合固定于所述支撑环。
优选的，所述磁路系统包括第一磁钢、环绕设置于所述第一磁钢外侧的第二磁钢、设置于所述第二磁钢下方的第三磁钢、环绕设置于所述第三磁钢外侧的第四磁钢及夹持于所述第二磁钢与所述第三磁钢之间的导磁板，所述第一磁钢与所述第二磁钢之间形成所述第一磁间隙，所述第二磁钢、导磁板、第三磁钢堆叠设置并与所述第四磁钢之间形成所述第二磁间隙。
优选的，所述同轴扬声器包括支撑所述第一磁钢的嵌件以及固定于所述嵌件与所述磁路系统之间的第一柔性电路板，所述第一音圈与所述第一柔性电路板电性连接，所述第一柔性电路板包括与所述磁路系统固定的定位部、自所述定位部延伸而成的悬臂以及形成于所述悬臂上的接合部，所述嵌件部分压合于所述定位部。
优选的，所述第一振动系统还包括连接所述第一音圈与所述第一柔性电路板的支撑架，所述支撑架包括固定于所述第一柔性电路板接合部的支撑脚，所述支撑架设有缺口，所述第一音圈具有引线，所述引线通过所述缺口延伸并固定至所述第一柔性电路板接合部的下表面。
优选的，所述嵌件具有延伸壁，所述第一柔性电路板的定位部固定于所述延伸壁。
 有益效果
与相关技术相比，本实用新型的一种同轴扬声器，包括支撑环、固定于所述支撑环下方的磁路系统、固定于所述支撑环内侧的第一振动系统及设置于所述支撑环外侧且环绕所述第一振动系统设置的第二振动系统，所述第一振动系统与所述第二振动系统同轴设置，所述第一振动系统包括第一振膜及驱动所述第一振膜振动发声的第一音圈，所述第二振动系统包括第二振膜及驱动所述第二振膜振动发声的第二音圈，所述磁路系统设有第一磁间隙及位于第一磁间隙外侧的第二磁间隙，所述第一音圈至少部分插设于所述第一磁间隙内，所述第二音圈至少部分插设于所述第二磁间隙内，所述第一振膜用于高音发声，所述第二振膜用于低音发声，所述支撑环包括与所述第一振膜固定连接的第一端部、与所述磁路系统固定连接的第二端部以及自所述第二端部沿向外扩张的方向连接至所述第一端部的连接部，所述第一振膜与所述第二振膜在所述同轴扬声器的振动方向上的投影部分相互重叠。本实用新型的同轴扬声器通过设置环形的低音振动系统，提供低音音效，高音振动系统设置于低音振动系统内侧，提供高音音效，低音、高音形成同轴全频带扬声器，提供高品质音效，其中低音振膜与高音振膜可以分开设计、成型，可以针对低音和高音的不同特性，单独调整高低音的膜料材质和厚，使用中更加灵活，再者，低音振膜与高音振膜在所述同轴扬声器的振动方向上的投影部分相互重叠，高音振膜设计利用低音振膜的Z向振动空间，较常规设计增大了振膜的振动面积以提升性能。
 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为本实用新型同轴扬声器的立体结构示意图；
图2为如图1所示的同轴扬声器的部分分解图；
图3为如图1所示的同轴扬声器的另一部分分解图；
图4为如图1所示的同轴扬声器的又一部分分解图；
图5为如图1所示的同轴扬声器的分解图；
图6为如图1所示的同轴扬声器中部分部件的立体图；
图7为沿图1中A-A线的剖示图；
图8为沿图1中B-B线的剖示图。
 本发明的最佳实施方式
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。
请同时参阅图1-8，本实用新型的提供了一种同轴扬声器100，其包括支撑环1、固定于所述支撑环1下方的磁路系统2、以及固定于所述支撑环1内侧的第一振动系统3、固定于所述支撑环1外侧的第二振动系统4、支撑所述第二振动系统4的盆架5、支撑部分所述磁路系统2的嵌件6、与所述嵌件6固定的第一柔性电路板7、与所述盆架5固定的弹性组件8，所述第二振动系统4环绕于所述第一振动系统3的外侧且与所述第一振动系统3同轴设置。
所述支撑环1的外周大致成矩形，整体呈号角状，所述支撑环包括与第一端部11、与所述磁路系统2固定连接的第二端部12以及自所述第二端部12沿向外扩张的方向连接至所述第一端部11的连接部13，所述第一端部11的尺寸大于所述第二端部12的尺寸。
所述磁路系统2包括第一磁钢21、环绕设置于所述第一磁钢21外侧的第二磁钢22、设置于所述第二磁钢22下方的第三磁钢23、环绕设置于所述第三磁钢23外侧的第四磁钢24、夹持于所述第二磁钢22与所述第三磁钢23之间的导磁板25、盖设于所述第一磁钢21上的第一极芯26、盖设于所述第二磁钢22上的第二极芯27、盖设于所述第四磁钢24上的第三极芯28、以及承载所述第三磁钢23和所述第四磁钢24的磁轭29，所述第一磁钢21、第一极芯26与所述第二磁钢22、第二极芯27之间形成第一磁间隙201，所述第二磁钢22、导磁板25、第三磁钢23堆叠设置并与所述第四磁钢24、第三极芯28之间形成所述第二磁间隙202。所述第二磁间隙202设于所述第一磁间隙201的外侧。
所述第一磁钢21、第二磁钢22、第三磁钢23、第四磁钢24沿所述同轴扬声器100的振动方向充磁，且所述第一磁钢21与第二磁钢22的充磁方向相反，所述第二磁钢22与第三磁钢23的充磁方向相反，所述第三磁钢23与第四磁钢24充磁方向相反。在本实施例中，所述第二磁钢22、第三磁钢23、第四磁钢24、导磁板25、第二极芯27、第三极芯28、磁轭29均为中空环状结构，当然所述第四磁钢24也可为分体式磁钢。
所述第一振动系统3包括第一振膜31、驱动所述第一振膜31振动发声的第一音圈32、以及支撑所述第一音圈32的支撑架33，所述第一音圈32至少部分插设于所述第一磁间隙201内。所述第一振膜31为一体式振膜，可用常规压膜方式制作，所述第一振膜31用于高音发声，其发声方向为沿着振动方向向上，即为同轴扬声器100的正面发声。所述第一振膜31包括第一球顶311以及环绕所述第一球顶311设置的第一折环312及固定连接于所述支撑环1第一端部11的第一固定部313，所述第一固定部313贴合固定于所述第一端部11的上表面。所述第一球顶311、第一折环312、第一固定部313可由硅胶、橡胶、聚醚醚酮（PEEK）、 聚萘二甲酸乙二醇酯（PEN）或聚对苯二甲酸乙二醇酯（PET）等材料一体成型而成。所述第一振膜31胶合固定于所述支撑环1的第一端部11。
所述第一音圈32具有引线321。
所述支撑架33包括支撑所述第一音圈32的支撑部331以及位于支撑架33底端的支撑脚332，所述支撑架33设有缺口333。
所述第二振动系统4包括第二振膜41、驱动所述第二振膜41振动发声的第二音圈42及连接所述第二振膜41与所述第二音圈的音圈骨架43，所述第二振膜41位于所述第一振膜31的下方，即所述第二振膜41较所述第一振膜31更靠近所述磁轭29，所述第二音圈42至少部分插设于所述第二磁间隙202内，所述第二振膜41用于低音发声，其发声方向为沿着振动方向向上，即为同轴扬声器100的正面发声。所述第二振膜41包括固定于所述支撑环1和/或所述磁路系统2的第二固定部411、自所述第二固定部411弯折延伸的第二折环412、环绕所述第二折环412且与所述第二折环412间隔设置的第三折环413以及自所述第三折环413远离所述第二折环412的一侧延伸的第三固定部414。所述音圈骨架43的一侧与所述第二折环412连接，另一侧与所述第三折环413连接。所述第二固定部411贴合固定于所述第二磁钢22的上表面，和/或所述第二固定部411贴合固定于所述支撑环1第二端部12的外侧面。
所述第二固定部411、第二折环412、第三折环413、第三固定部414由硅橡胶材料一体热压成型固定于所述音圈骨架43，再将整个所述第二振膜41胶合固定于所述支撑环1和/或第二磁钢22。或者，所述第二固定部411、第二折环412、第三折环413、第三固定部414胶合固定于所述音圈骨架43，再将整个所述第二振膜41胶合固定于所述支撑环1和/或第二磁钢22。
所述第一振膜31与所述第二振膜41在所述同轴扬声器100的振动方向上的投影部分相互重叠，具体的，所述第一折环312与所述第二折环412在所述同轴扬声器100的振动方向上的投影部分相互重叠，如此，第一振膜31占用部分第二振膜41在Z轴，即同轴扬声器100的竖直振动方向上的空间，可以在有限的尺寸要求下增大第一振膜31、第二振膜41的振动空间，以提升同轴扬声器100的声学性能。
所述磁轭29对应所述第二音圈42的位置设有让位凹陷部291，以提供第二音圈42足够的振动空间。
盆架5为中空环状结构，所述第二振膜41的第三固定部414贴合固定于所述盆架5的上表面，并弯折延伸包覆部分所述盆架5的外侧面。
所述嵌件6支撑所述第一磁钢22及第一极芯26，所述嵌件6具有对称设置于两侧的延伸壁61。
所述第一柔性电路板7固定于所述嵌件6与所述磁路系统2之间，所述第一音圈32与所述第一柔性电路板7电性连接，所述第一柔性电路板7包括与所述磁路系统2的第三磁钢23固定的定位部71、自所述定位部71延伸而成的悬臂72以及形成于所述悬臂72上的接合部73。所述嵌件6的延伸臂61压合于所述定位部71的中间部分，所述定位部71贴合固定于所述第三磁钢23的下表面。所述定位部71为沿长轴方向相对设置的两个，每个定位部71均延伸出两个悬臂72，两个定位部71上相对的各悬臂72相向延伸并连接于所述接合部73。所述支撑架33的支撑脚332支撑于所述第一柔性电路板7的接合部73的上表面，所述第一音圈32的引线321通过所述缺口333延伸并固定至所述第一柔性电路板7接合部73的下表面。
弹性组件8连接所述音圈骨架43与所述盆架5，所述弹性组件8包括第二柔性电路板81与所述第二柔性电路板81连接的支撑振膜82，所述第二音圈42与所述第二柔性电路板81电性连接。在本实施例中，弹性组件8的数量为两个，且设置在同轴扬声器100的短轴方向上，在其他实施例中可视情况而定。
所述音圈骨架43包括骨架平板部431、自所述骨架平板部431向着所述第二柔性电路板81弯折延伸并与所述第二柔性电路板81连接的第一延伸部432及自所述骨架平板部431向着所述第二音圈42弯折延伸并与所述第二音圈42连接的第二延伸部433。所述骨架平板部431的一侧与所述第二折环412连接，另一侧与所述第三折环413连接。
与相关技术相比，本实用新型的一种同轴扬声器，包括支撑环、固定于所述支撑环下方的磁路系统、固定于所述支撑环内侧的第一振动系统及设置于所述支撑环外侧且环绕所述第一振动系统设置的第二振动系统，所述第一振动系统与所述第二振动系统同轴设置，所述第一振动系统包括第一振膜及驱动所述第一振膜振动发声的第一音圈，所述第二振动系统包括第二振膜及驱动所述第二振膜振动发声的第二音圈，所述磁路系统设有第一磁间隙及位于第一磁间隙外侧的第二磁间隙，所述第一音圈至少部分插设于所述第一磁间隙内，所述第二音圈至少部分插设于所述第二磁间隙内，所述第一振膜用于高音发声，所述第二振膜用于低音发声，所述支撑环包括与所述第一振膜固定连接的第一端部、与所述磁路系统固定连接的第二端部以及自所述第二端部沿向外扩张的方向连接至所述第一端部的连接部，所述第一振膜与所述第二振膜在所述同轴扬声器的振动方向上的投影部分相互重叠。本实用新型的同轴扬声器通过设置环形的低音振动系统，提供低音音效，高音振动系统设置于低音振动系统内侧，提供高音音效，低音、高音形成同轴全频带扬声器，提供高品质音效，其中低音振膜与高音振膜可以分开设计、成型，可以针对低音和高音的不同特性，单独调整高低音的膜料材质和厚，使用中更加灵活，再者，低音振膜与高音振膜在所述同轴扬声器的振动方向上的投影部分相互重叠，高音振膜设计利用低音振膜的Z向振动空间，较常规设计增大了振膜的振动面积以提升性能。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (10)

  1. 一种同轴扬声器，其特征在于：包括支撑环、固定于所述支撑环下方的磁路系统、固定于所述支撑环内侧的第一振动系统及设置于所述支撑环外侧且环绕所述第一振动系统设置的第二振动系统，所述第一振动系统与所述第二振动系统同轴设置，所述第一振动系统包括第一振膜及驱动所述第一振膜振动发声的第一音圈，所述第二振动系统包括第二振膜及驱动所述第二振膜振动发声的第二音圈，所述磁路系统设有第一磁间隙及位于第一磁间隙外侧的第二磁间隙，所述第一音圈至少部分插设于所述第一磁间隙内，所述第二音圈至少部分插设于所述第二磁间隙内，所述第一振膜用于高音发声，所述第二振膜用于低音发声，所述支撑环包括与所述第一振膜固定连接的第一端部、与所述磁路系统固定连接的第二端部以及自所述第二端部沿向外扩张的方向连接至所述第一端部的连接部，所述第一振膜与所述第二振膜在所述同轴扬声器的振动方向上的投影部分相互重叠。
  2. 根据权利要求1所述的同轴扬声器，其特征在于，所述第一振膜包括第一球顶、环绕所述第一球顶的第一折环及固定连接于所述支撑环第一端部的第一固定部，所述第二振膜包括固定于所述支撑环和/或所述磁路系统的第二固定部及自所述第二固定部弯折延伸的第二折环，所述第一折环与所述第二折环在所述同轴扬声器的振动方向上的投影部分相互重叠。
  3. 根据权利要求2所述的同轴扬声器，其特征在于，所述第二振动系统包括连接所述第二振膜与所述第二音圈的音圈骨架，所述第二振膜还包括环绕所述第二折环且与所述第二折环间隔设置的第三折环，所述音圈骨架的一侧与所述第二折环连接，另一侧与所述第三折环连接。
  4. 根据权利要求3所述的同轴扬声器，其特征在于，所述第二折环、第三折环由硅橡胶材料一体热压成型固定于所述音圈骨架，所述第二振膜胶合固定于所述支撑环和/或所述磁路系统。
  5. 根据权利要求3所述的同轴扬声器，其特征在于，所述第二折环、第三折环胶合固定于所述音圈骨架，所述第二振膜胶合固定于所述支撑环和/或所述磁路系统。
  6. 根据权利要求2所述的同轴扬声器，其特征在于，所述第一振膜胶合固定于所述支撑环。
  7. 根据权利要求1所述的同轴扬声器，其特征在于，所述磁路系统包括第一磁钢、环绕设置于所述第一磁钢外侧的第二磁钢、设置于所述第二磁钢下方的第三磁钢、环绕设置于所述第三磁钢外侧的第四磁钢及夹持于所述第二磁钢与所述第三磁钢之间的导磁板，所述第一磁钢与所述第二磁钢之间形成所述第一磁间隙，所述第二磁钢、导磁板、第三磁钢堆叠设置并与所述第四磁钢之间形成所述第二磁间隙。
  8. 根据权利要求1所述的同轴扬声器，其特征在于，所述同轴扬声器包括支撑所述第一磁钢的嵌件以及固定于所述嵌件与所述磁路系统之间的第一柔性电路板，所述第一音圈与所述第一柔性电路板电性连接，所述第一柔性电路板包括与所述磁路系统固定的定位部、自所述定位部延伸而成的悬臂以及形成于所述悬臂上的接合部，所述嵌件部分压合于所述定位部。
  9. 根据权利要求8所述的同轴扬声器，其特征在于，所述第一振动系统还包括连接所述第一音圈与所述第一柔性电路板的支撑架，所述支撑架包括固定于所述第一柔性电路板接合部的支撑脚，所述支撑架设有缺口，所述第一音圈具有引线，所述引线通过所述缺口延伸并固定至所述第一柔性电路板接合部的下表面。
  10. 根据权利要求8所述的同轴扬声器，其特征在于，所述嵌件具有延伸壁，所述第一柔性电路板的定位部固定于所述延伸壁。
PCT/CN2022/115650 2022-08-30 2022-08-30 同轴扬声器 WO2024044923A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017080682A1 (de) * 2015-11-10 2017-05-18 Norman Gerkinsmeyer Koaxialer zwei-wege-lautsprecher
CN207039884U (zh) * 2017-06-07 2018-02-23 东莞市丰纶电子科技有限公司 双音圈双磁路分音喇叭
CN207166758U (zh) * 2017-08-11 2018-03-30 国光电器股份有限公司 一种同轴喇叭及耳机
CN212936195U (zh) * 2020-07-02 2021-04-09 歌尔股份有限公司 一种动圈式扬声器和耳机
CN113573217A (zh) * 2020-04-29 2021-10-29 维沃移动通信有限公司 扬声器及电子设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017080682A1 (de) * 2015-11-10 2017-05-18 Norman Gerkinsmeyer Koaxialer zwei-wege-lautsprecher
CN207039884U (zh) * 2017-06-07 2018-02-23 东莞市丰纶电子科技有限公司 双音圈双磁路分音喇叭
CN207166758U (zh) * 2017-08-11 2018-03-30 国光电器股份有限公司 一种同轴喇叭及耳机
CN113573217A (zh) * 2020-04-29 2021-10-29 维沃移动通信有限公司 扬声器及电子设备
CN212936195U (zh) * 2020-07-02 2021-04-09 歌尔股份有限公司 一种动圈式扬声器和耳机

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