WO2024000691A1 - 同轴扬声器箱 - Google Patents

同轴扬声器箱 Download PDF

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Publication number
WO2024000691A1
WO2024000691A1 PCT/CN2022/106755 CN2022106755W WO2024000691A1 WO 2024000691 A1 WO2024000691 A1 WO 2024000691A1 CN 2022106755 W CN2022106755 W CN 2022106755W WO 2024000691 A1 WO2024000691 A1 WO 2024000691A1
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WO
WIPO (PCT)
Prior art keywords
sound
magnetic
vibration system
diaphragm
wall surface
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Application number
PCT/CN2022/106755
Other languages
English (en)
French (fr)
Inventor
任璋
钟志威
王奇
Original Assignee
瑞声光电科技(常州)有限公司
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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
Publication of WO2024000691A1 publication Critical patent/WO2024000691A1/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 
    • 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
    • H04R9/06—Loudspeakers

Definitions

  • the invention relates to the field of sensors, and in particular to a coaxial speaker box.
  • 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 box, 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 box, that is, the sound sources of the two speaker units. The direction of the sound is different.
  • the coaxial speaker is installed into the casing to form a coaxial speaker box.
  • the tweeter unit and the woofer unit of the coaxial speaker each contain an independent vibration system and a magnetic circuit system, and the structure is complex.
  • the coaxial speaker and the coaxial speaker box are coaxially composed of the tweeter unit and the woofer unit.
  • the overall height increases, resulting in inconvenient installation due to excessive height, which reduces the applicability of the product; in addition, the separate high and low magnetic circuits also increase the production cost and reduce the market competitiveness of the product; and in related technologies, the speakers are far away from the sound surface
  • the effective area of the diaphragm in the unit is limited and cannot meet the requirements of the full sound range.
  • the sound emission direction of the speaker box with this coaxial speaker is generally from the top, resulting in low resonance energy in the front cavity and poor treble sound effect.
  • the object of the present invention is to provide a full-band coaxial speaker box with good high and low sound effects.
  • the present invention provides a coaxial speaker box, which includes: a casing, a speaker unit housed in the casing, and a sound emitted by the speaker unit that is guided from the side of the casing to The sound guide channel outside the housing, the speaker unit includes a basin frame, a magnetic circuit system fixed below the basin frame, a first vibration system fixed on the inside of the basin frame, and a first vibration system fixed on the outside of the basin frame. And a second vibration system is arranged around the first vibration system, the first vibration system and the second vibration system are arranged coaxially, and there is a gap between the first vibration system, the second vibration system and the housing.
  • the first vibration system includes a first diaphragm and a first voice coil that drives the first diaphragm to vibrate and produce sound
  • the second vibration system includes a second diaphragm and drives the second diaphragm.
  • 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.
  • the second voice coil is at least partially inserted in the second magnetic gap
  • the first diaphragm is used to emit high-pitched sound
  • the high-pitched sound emitted by the first diaphragm passes through the basin frame and is emitted from the conductor.
  • the sound channel is transmitted to the outside of the housing, the second diaphragm is used to emit bass sound, and the bass sound emitted by the second diaphragm is transmitted from the sound guide channel to the outside of the housing.
  • the basin frame has an annular structure and includes an upper wall surface abutting the housing, a lower wall surface fixed to the magnetic circuit system, and inner and outer wall surfaces connecting the upper wall surface and the lower wall surface.
  • the basin frame is recessed from the upper wall toward the lower wall to form a first sound transmission hole, and the first sound transmission hole does not penetrate to the lower wall.
  • the length of the sound guide channel is greater than the length of the first sound transmission hole of the basin frame.
  • the speaker unit further includes an insert surrounded by the magnetic circuit system and a first circuit board fixed to the insert, and the insert is provided with a first terminal running through it, and the The first voice coil is electrically connected to the first circuit board through the first terminal.
  • the speaker unit further includes a support frame and an elastic component connecting the second vibration system and the support frame.
  • the elastic component includes a second circuit board and a support vibrator connected to the second circuit board. membrane, the second voice coil is electrically connected to the second circuit board.
  • the magnetic circuit system includes a magnetic bowl
  • the magnetic bowl includes a side portion surrounding a receiving space and a bottom formed by bending and extending from one end of the side portion
  • the magnetic circuit system further includes a magnetic bowl provided on the A first magnetic steel component on one side of the magnetic bowl and a second magnetic steel component disposed on the other side of the magnetic bowl.
  • the first magnetic steel component includes a first magnetic steel.
  • the first magnetic steel and the magnetic steel are The first magnetic gap is formed between the side walls of the bowl
  • the second magnetic steel assembly includes a second magnetic steel and a third magnetic steel located outside the second magnetic steel and forming the second magnetic gap with the second magnetic steel. Three magnets.
  • the first diaphragm includes a first dome and a first ring surrounding the first dome, the first ring is provided with a first fixing part, and the first fixing part is attached to The inner wall surface of the basin frame is fixed.
  • the first fixing part is provided with a second sound transmission hole at a position corresponding to the first sound transmission hole of the basin frame.
  • the part of the first fixing part forming the second sound transmission hole is attached and fixed to the bottom wall of the frame where the first sound transmission hole is formed.
  • the first magnetic steel assembly includes a pole core provided on the first magnetic steel, and the first fixing portion is partially clamped between the inner wall surface of the basin frame and the pole core.
  • the coaxial speaker box of the present invention includes: a casing, a speaker unit housed in the casing, and the sound emitted by the speaker unit is guided from the side of the casing to the The sound guide channel outside the casing, the speaker unit includes a basin frame, a magnetic circuit system fixed below the basin frame, a first vibration system fixed on the inside of the basin frame, and a first vibration system fixed on the outside of the basin frame and surrounding
  • the first vibration system is provided with a second vibration system, the first vibration system and the second vibration system are coaxially provided, and a front vibration system is formed between the first vibration system, the second vibration system and the housing.
  • the first vibration system includes a first diaphragm and a first voice coil that drives the first diaphragm to vibrate and produce sound
  • the second vibration system includes a second diaphragm and drives the second diaphragm to vibrate and produce sound.
  • the second voice coil the magnetic circuit system is provided with a first magnetic gap and a second magnetic gap located outside the first magnetic gap, and the first voice coil is at least partially inserted in the first magnetic gap, so The second voice coil is at least partially inserted in the second magnetic gap, the first diaphragm is used to emit high-pitched sound, and the high-pitched sound emitted by the first diaphragm passes through the basin frame and exits from the sound guide channel.
  • the second diaphragm is used to emit bass sounds, and the bass sound emitted by the second diaphragm is transmitted from the sound guide channel to the outside of the casing.
  • the coaxial speaker box of the present invention provides a bass sound effect by setting up an annular bass vibration system.
  • the treble vibration system is arranged inside the bass vibration system to provide a treble sound effect.
  • the bass and treble form a coaxial full-band speaker unit, which is a coaxial speaker box.
  • Providing high-quality sound effects, the treble and bass share the side sound channel, forming a front cavity resonance in the bass channel to improve the high-frequency sound effect.
  • the treble airflow comes out from one side of the basin frame, improving the directivity of the speaker box.
  • Figure 1 is a schematic three-dimensional structural diagram of a coaxial speaker box of the present invention
  • Figure 2 is a partially exploded view of the coaxial speaker box shown in Figure 1;
  • Figure 3 is a partially exploded view of the speaker unit in the coaxial speaker box shown in Figure 1;
  • Figure 4 is another partially exploded view of the speaker unit in the coaxial speaker box shown in Figure 1;
  • Figure 5 is an exploded view of some components of the speaker unit in the coaxial speaker box shown in Figure 1;
  • Figure 6 is a cross-sectional view along line A-A in Figure 1;
  • FIG. 7 is a cross-sectional view along line B-B in FIG. 1 .
  • the present invention provides a coaxial speaker box 200, which includes a housing 300, a speaker unit 100 accommodated in the housing 300, and a sound emitted by the speaker unit 100.
  • the sound guide channel 400 is led out from the side of the housing 300 to the outside of the housing 300 .
  • the housing 300 includes a lower housing 301 and an upper housing 302 that is fixed to the lower housing 301 .
  • the bottom wall of the lower housing 301 is provided with a through hole 3011.
  • the upper housing 302 includes a frame 3021 and a steel piece 3022 fitted and fixed to the frame 3021 .
  • the speaker unit 100 includes a basin frame 1 , a magnetic circuit system 2 fixed to the basin frame 1 , a first vibration system 3 fixed to the inside of the basin frame 1 , and a first vibration system 3 fixed to the inner side of the basin frame 1 .
  • the second vibration system 4, the insert 5, the first circuit board 6 fixed to the insert 5, the support frame 7, and the elastic component 8 on the outside of the basin frame 1, the second vibration system 4 surrounds the The outer side of the first vibration system 3 is arranged coaxially with the first vibration system 3 .
  • the outer circumference of the basket 1 is roughly rectangular, and includes an upper wall 11 that abuts the housing 300 , a lower wall 12 fixed to the magnetic circuit system 2 , and a lower wall connecting the upper wall 11 and the lower wall 12 .
  • the upper wall surface 11 and the steel sheet 3022 are in contact and fixed.
  • the basin frame 1 is recessed from the upper wall surface 11 toward the lower wall surface 12 to form a first sound transmission hole 15.
  • the first sound transmission hole 15 penetrates the inner wall surface 13 and the outer wall surface 14, and does not penetrate to the inner wall surface 13 and the outer wall surface 14.
  • the first vibration system 3 is located on the inner wall surface 13 side of the basin frame 1
  • the second vibration system 4 is located on the outer wall surface 14 side of the basin frame 1 .
  • the length of the first sound transmission hole 15 of the basin frame 1 is shorter than the length of the sound guide channel 400 .
  • the magnetic circuit system 2 includes a magnetic bowl 21 , a first magnetic steel component 22 disposed on one side of the magnetic bowl 21 , and a second magnetic steel component 23 disposed on the other side of the magnetic bowl 21 .
  • the first magnetic steel assembly 22 and the second magnetic steel assembly 23 are arranged coaxially.
  • the magnetic bowl 21 includes a side portion 211 surrounding a receiving space 210 and a bottom portion 212 bent and extended from one end of the side portion 211 .
  • the first magnetic steel assembly 22 includes a first magnetic steel 221 and a pole core 222 disposed on the first magnetic steel 221, and is formed between the first magnetic steel 221 and the side portion 211 of the magnetic bowl 21.
  • First magnetic gap 220 is provided to cover the magnetic core 2221 and the side portion 211 of the magnetic bowl 21.
  • a cut surface 2211 is provided on the outer edge of the surface of the first magnet 221 close to the second vibration system 4 .
  • the bottom 212 of the magnetic bowl 21 carries the first magnetic steel 221 .
  • the second magnet steel assembly 23 includes a second magnet steel 231, a third magnet steel 232 forming a second magnetic gap 230 with the second magnet steel 231, and a magnetic conductive magnet stacked above the third magnet steel 232.
  • the plate 233, the bottom 212 of the magnetic bowl 21 is stacked above the second magnetic steel 231, and the first magnetic steel 221 and the second magnetic steel 232 are arranged facing each other.
  • the magnetic circuit system 2 further includes a magnetic yoke 24 carrying the second magnetic steel 231 and the third magnetic steel 232 .
  • the magnetic yoke 24 is partially exposed through the through hole 3011 of the lower housing 301 .
  • the lower surface of the yoke 24 is flush with the lower surface of the insert 5 .
  • the first magnet 221, the second magnet 231, and the third magnet 232 are magnetized along the vibration direction of the speaker unit 100, and the first magnet 221 and the second magnet 231 are oppositely arranged with the same pole. , that is, the magnetization directions of the first magnet steel 221 and the second magnet steel 231 are opposite, and the magnetization directions of the second magnet steel 231 and the third magnet steel 232 are opposite.
  • the first magnetic steel 221, the pole core 222, the second magnetic steel 231, the third magnetic steel 232, and the magnetic conductive plate 233 are all hollow annular structures.
  • the first vibration system 3 includes a first diaphragm 31 and a first voice coil 32 that drives the first diaphragm 31 to vibrate and produce sound.
  • the first voice coil 32 is at least partially inserted in the first magnetic gap 220 Inside, the first diaphragm 31 is used to emit high-pitched sound, and its emitting direction is upward along the vibration direction.
  • the first diaphragm 31 includes a first dome 311 and a first folding ring 312 arranged around the first dome 311 .
  • the first dome 311 includes a first dome located above the first folding ring 312 .
  • the spherical top part 3111 and the second spherical top part 3112 located below the first folding ring 312, the first folding ring 312 is a hollow annular structure, and the first folding ring 312 protrudes upward along the vibration direction. structure, the size of the first dome part 3111 is smaller than the second dome part 3112, and the first dome part 3111 is fit and fixed on the second dome part 3112, and the second dome part 3111 is fixed to the second dome part 3112.
  • the top portion 3112 is fixed to the first folding ring 312 .
  • the first fixing part 313 is provided on the outer edge of the first folding ring 312, and the second fixing part 314 is provided on the inner edge.
  • the first fixing part 313 is attached to the inner side wall 11 of the basin frame 1 and fixed.
  • the second spherical top part 3112 is attached to and fixed to the second fixing part 314, and is sandwiched between the second fixing part 314 and the first voice coil 32. Further, the first fixing part 3112 is The portion 313 is partially sandwiched between the basin frame 1 and the pole core 222 .
  • the first fixing part 313 is provided with a second sound transmission hole 3131 at a position corresponding to the first sound transmission hole 15 of the basin frame 1 .
  • the portion of the first fixing portion 313 forming the second sound transmission hole 3131 is attached and fixed to the bottom wall of the frame 1 forming the first sound transmission hole 15 .
  • 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 that connects the second diaphragm 41 and the second voice coil 42.
  • the second voice coil 42 is at least partially inserted into the second magnetic gap 230 of the skeleton 43 .
  • the second diaphragm 41 is used to emit bass sound, and its sound emitting direction is upward along the vibration direction.
  • the second diaphragm 41 includes a second ring 411 , a second dome 412 surrounding the second dome 411 , and a third ring 413 surrounding the second dome 412 .
  • the second folding ring 411, the second dome 412, and the third folding ring 413 are all hollow annular structures, and the second folding ring 411 is a structure protruding upward along the vibration direction, and the third folding ring 413 It is a structure that is recessed downward along the vibration direction.
  • the voice coil bobbin 43 connects the second folding ring 411 , the second dome 412 , the third folding ring 413 and the second voice coil 42 .
  • One end of the second folding ring 411 close to the first diaphragm 31 is fixed on the outer wall 14 of the basket 1 or/and the first magnet 221 , and the outer edge of the third folding ring 413 Includes a third fixing part 4131.
  • a front cavity 303 is formed between the first vibration system 3, the second vibration system 4 and the upper shell 302 of the housing 300.
  • the front cavity portion corresponding to the first vibration system 3 and the front cavity portion corresponding to the second vibration system 4 The cavity part is connected through the first sound transmission hole 15 and the second sound transmission hole 3131. Since the length of the sound guide channel 400 is greater than the length of the first sound transmission hole 15 of the basin frame 1, the treble part can gradually diffuse along the The direction forms a horn shape and is emitted to the outside of the housing 300 , thereby improving the directivity of the coaxial speaker box 200 and simultaneously increasing the resonance energy of the front cavity 303 .
  • the yoke 24 is provided with a relief recess 241 corresponding to the position of the second voice coil 42 to provide sufficient vibration space for the second voice coil 42 .
  • the insert 5 is disposed in the receiving space 210 surrounded by the side 211 of the magnetic bowl 21 .
  • the first circuit board 6 is attached to the outer surface of the magnetic yoke 24 .
  • the insert 5 is provided with a
  • the first terminal 91 is connected to the first circuit board 6
  • the first voice coil 32 is electrically connected to the first circuit board 6 through the first terminal 91 .
  • the insert 5 is provided with a leakage channel 51 running through it.
  • the support frame 7 is an annular steel ring.
  • the third fixing part 4131 of the third folding ring 413 is fixedly connected to the support frame 7. Specifically, the third fixation part 4131 covers the upper surface and part of the support frame 7. outer side.
  • the pole core 222 is fixed to an end of the support frame away from the second diaphragm 41 .
  • the elastic component 8 connects the voice coil bobbin 43 and the support frame 7 .
  • the elastic component 8 includes a second circuit board 81 and a support diaphragm 82 connected to the second circuit board 81 .
  • the second voice coil 42 is electrically connected to the second circuit board 81.
  • the speaker unit 100 further includes a second terminal 92 connected to the second circuit board 81, and the second voice coil 42 passes through the second circuit board 81.
  • the terminal 92 is electrically connected to the second circuit board 81 .
  • the number of elastic components 8 is two, and they are arranged in the short axis direction of the speaker unit 100. In other embodiments, it may depend on the situation.
  • the voice coil bobbin 43 includes a bobbin flat plate portion 431 that fits the second dome 412 , and is bent and extended from one end of the bobbin flat plate portion 431 toward the second circuit board 81 and connected with the second circuit board 81 .
  • the coaxial speaker box of the present invention includes: a casing, a speaker unit housed in the casing, and the sound emitted by the speaker unit is guided from the side of the casing to the The sound guide channel outside the casing, the speaker unit includes a basin frame, a magnetic circuit system fixed below the basin frame, a first vibration system fixed on the inside of the basin frame, and a first vibration system fixed on the outside of the basin frame and surrounding The second vibration system is provided with 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 first diaphragm to vibrate.
  • the first voice coil that 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 is located on the first magnetic A second magnetic gap outside the gap, the first voice coil is at least partially inserted in the first magnetic gap, the second voice coil is at least partially inserted in the second magnetic gap, the first The diaphragm is used to produce high-pitched sounds.
  • the high-pitched sounds emitted by the first diaphragm are transmitted from the sound guide channel to the outside of the housing through the basin frame.
  • the second diaphragm is used to produce low-pitched sounds.
  • the second diaphragm is used to produce low-pitched sound.
  • the bass sound emitted by the diaphragm is transmitted from the sound guide channel to the outside of the housing.
  • the coaxial speaker box of the present invention provides a bass sound effect by setting up an annular bass vibration system.
  • the treble vibration system is arranged inside the bass vibration system to provide a treble sound effect.
  • the bass and treble form a coaxial full-band speaker unit, which is a coaxial speaker box.
  • Providing high-quality sound effects, the treble and bass share the side sound channel, forming a front cavity resonance in the bass channel to improve the high-frequency sound effect.
  • the treble airflow comes out from one side of the basin frame, improving the directivity of the speaker box.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本发明提供了一种同轴扬声器箱包括壳体、扬声器单体及将声音导出的导声通道，扬声器单体包括盆架、磁路系统、位于盆架内的第一振动系统及位于盆架外侧的第二振动系统，第一振动系统、第二振动系统与壳体之间形成前腔，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，磁路系统设有第一磁间隙及第二磁间隙，第一音圈插设于第一磁间隙，第二音圈插设于第二磁间隙，第一振膜用于高音发声，高音穿过盆架自导声通道传至壳体外，第二振膜用于低音发声，低音自导声通道传至壳体外。该同轴扬声器箱低音、高音形成同轴全频带扬声器，提供高品质音效，高、低音共用侧导声通道，在低音通道里形成前腔谐振改善高频音效。

Description

同轴扬声器箱
【 技术领域】
本发明涉及传感器领域，尤其涉及一种同轴扬声器箱。
【 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箱的正面，即两个扬声器单元的发声方向相同，也可位于同轴扬声器箱的正反面，即两个扬声器单元的发声方向不上同。将该同轴扬声器装入壳体中即可形成同轴扬声器箱。
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各自包含独立的振动系统和磁路系统，结构复杂，由高音扬声器单元和低音扬声器单元同轴组成的同轴扬声器及同轴扬声器箱的整体高度增加，导致高度过高安装不便，降低了产品的适用性；此外，分开的高低音磁路也使得生产成本提高，降低了产品的市场竞争力；且相关技术中远离出声面的扬声器单元中振膜的有效面积受到限制，无法满足全音域的要求。同时具有该同轴扬声器的扬声器箱的发声方向一般是顶部发声，导致前腔谐振能量低，高音音效欠佳。
因此，有必要提供一种新的同轴扬声器箱以解决上述技术问题。
【 发明内容】
本发明的目的在于提供一种高低音音效好的全频段同轴扬声器箱。
为了达到上述目的，本发明提供了一种同轴扬声器箱，其包括：壳体、收容于所述壳体内的扬声器单体以及将所述扬声器单体发出的声音自所述壳体侧面导出至所述壳体外的导声通道，所述扬声器单体包括盆架、固定于所述盆架下方的磁路系统、固定于所述盆架内侧的第一振动系统及固定于所述盆架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、第二振动系统与所述壳体之间形成前腔，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，所述第一振膜发出的高音穿过所述盆架自所述导声通道传至所述壳体外，所述第二振膜用于低音发声，所述第二振膜发出的低音自所述导声通道传至所述壳体外。
优选的，所述盆架为环形结构且包括与所述壳体抵接的上壁面、固定于所述磁路系统的下壁面、连接所述上壁面与所述下壁面的内壁面及外壁面，所述盆架自所述上壁面朝着下壁面的方向凹陷形成第一传声孔，所述第一传声孔未贯穿至所述下壁面。
优选的，所述导声通道的长度大于所述盆架第一传声孔的长度。
优选的，所述扬声器单体还包括被所述磁路系统环绕设置的嵌件以及与所述嵌件固定的第一电路板，所述嵌件设有贯穿其上的第一端子，所述第一音圈通过所述第一端子与所述第一电路板电性连接。
优选的，所述扬声器单体还包括支撑架、连接所述第二振动系统与所述支撑架的弹性组件，所述弹性组件包括第二电路板及与所述第二电路板连接的支撑振膜，所述第二音圈与所述第二电路板电性连接。
优选的，所述磁路系统包括磁碗，所述磁碗包括围设成收容空间的侧部以及自所述侧部一端弯折延伸形成的底部，所述磁路系统还包括设置于所述磁碗一侧的第一磁钢组件及设置于所述磁碗另一侧的第二磁钢组件，所述第一磁钢组件包括第一磁钢，所述第一磁钢与所述磁碗的侧壁之间形成所述第一磁间隙，所述第二磁钢组件包括第二磁钢及位于第二磁钢外侧且与所述第二磁钢形成所述第二磁间隙的第三磁钢。
优选的，所述第一振膜包括第一球顶以及环绕所述第一球顶的第一折环，所述第一折环设有第一固定部，所述第一固定部贴合于所述盆架的内壁面固定。
优选的，所述第一固定部对应所述盆架第一传声孔的位置设有第二传声孔。
优选的，所述第一固定部形成所述第二传声孔的部分贴合固定于所述盆架形成所述第一传声孔的底壁上。
优选的，所述第一磁钢组件包括设置于所述第一磁钢上的极芯，所述第一固定部部分夹持于所述盆架的内壁面与所述极芯之间。
与相关技术相比，本发明的同轴扬声器箱，其包括：壳体、收容于所述壳体内的扬声器单体以及将所述扬声器单体发出的声音自所述壳体侧面导出至所述壳体外的导声通道，所述扬声器单体包括盆架、固定于所述盆架下方的磁路系统、固定于所述盆架内侧的第一振动系统及固定于所述盆架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、第二振动系统与所述壳体之间形成前腔，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，所述第一振膜发出的高音穿过所述盆架自所述导声通道传至所述壳体外，所述第二振膜用于低音发声，所述第二振膜发出的低音自所述导声通道传至所述壳体外。本发明的同轴扬声器箱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单体，为同轴扬声器箱提供高品质音效，高音、低音共用侧导声通道，在低音通道里形成前腔谐振改善高频音效，高音气流从盆架的一侧处出声，提高了扬声器箱的指向性。
【 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为本发明同轴扬声器箱的立体结构示意图；
图2为如图1所示的同轴扬声器箱的部分分解图;
图3为如图1所示的同轴扬声器箱中扬声器单体的部分分解图;
图4为如图1所示的同轴扬声器箱中扬声器单体的又一部分分解图;
图5为如图1所示的同轴扬声器箱中扬声器单体的部分部件的分解图;
图6为沿图1中A-A线的剖示图;
图7为沿图1中B-B线的剖示图。
【 具体实施方式】  
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1-7，本发明提供了一种同轴扬声器箱200，其包括壳体300、收容于所述壳体300内的扬声器单体100以及将所述扬声器单体100发出的声音自所述壳体300侧面导出至所述壳体300外的导声通道400。
如图2所示，所述壳体300包括下壳体301及盖合于所述下壳体301固定的上壳体302。所述下壳体301的底壁设有贯通孔3011。所述上壳体302包括框架3021以及嵌合固定于所述框架3021的钢片3022。
如图3至图7所示，所述扬声器单体100包括盆架1、固定于所述盆架1的磁路系统2、固定于所述盆架1内侧的第一振动系统3、固定于所述盆架1外侧的第二振动系统4、嵌件5、与所述嵌件5固定的第一电路板6、支撑架7、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。
所述盆架1的外周大致成矩形，其包括与所述壳体300抵接的上壁面11、固定于所述磁路系统2的下壁面12、连接所述上壁面11与所述下壁面12的内壁面13及外壁面14，具体的，所述上壁面11与所述钢片3022抵接固定。所述盆架1自所述上壁面11朝着下壁面12的方向凹陷形成第一传声孔15，所述第一传声孔15贯穿所述内壁面13及外壁面14，且未贯穿至所述下壁面12。所述第一振动系统3位于盆架1的内壁面13一侧，所述第二振动系统4位于盆架1的外壁面14一侧。所述盆架1第一传声孔15的长度小于所述导声通道400的长度。
所述磁路系统2包括磁碗21、设置于所述磁碗21一侧的第一磁钢组件22及设置于所述磁碗21另一侧的第二磁钢组件23。所述第一磁钢组件22与所述第二磁钢组件23同轴设置。所述磁碗21包括围设成收容空间210的侧部211以及自所述侧部211一端弯折延伸形成的底部212。所述第一磁钢组件22包括第一磁钢221以及设置于所述第一磁钢221上的极芯222，所述第一磁钢221与所述磁碗21的侧部211之间形成第一磁间隙220。所述第一磁钢221靠近所述第二振动系统4的表面的外边缘设有切面2211。所述磁碗21的底部212承载所述第一磁钢221。所述第二磁钢组件23包括第二磁钢231、与所述第二磁钢231形成第二磁间隙230的第三磁钢232、叠设于所述第三磁钢232上方的导磁板233，所述磁碗21的底部212叠设于所述第二磁钢231的上方，所述第一磁钢221与所述第二磁钢232正对设置。所述磁路系统2还包括承载所述第二磁钢231与所述第三磁钢232的磁轭24，所述磁轭24部分通过所述下壳体301的贯通孔3011暴露。所述磁轭24的下表面与所述嵌件5的下表面齐平。
所述第一磁钢221、第二磁钢231、第三磁钢232沿所述扬声器单体100的振动方向充磁，且所述第一磁钢221、第二磁钢231同极相对设置，即第一磁钢221、第二磁钢231的充磁方向相反，所述第二磁钢231、第三磁钢232充磁方向相反。在本实施例中，所述第一磁钢221、极芯222、第二磁钢231、第三磁钢232、导磁板233均为中空环状结构。
所述第一振动系统3包括第一振膜31及驱动所述第一振膜31振动发声的第一音圈32，所述第一音圈32至少部分插设于所述第一磁间隙220内，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。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，所述第一球顶311包括位于所述第一折环312上方的第一球顶部分3111及位于所述第一折环312下方的第二球顶部分3112，所述第一折环312为中空环状结构，且所述第一折环312为沿振动方向向上突起的结构，所述第一球顶部分3111的尺寸小于所述第二球顶部分3112，且所述第一球顶部分3111贴合固定于所述第二球顶部分3112上，所述第二球顶部分3112固定于所述第一折环312。所述第一折环312的外边缘设有第一固定部313，内边缘设有第二固定部314，所述第一固定部313贴合于所述盆架1的内侧壁11固定，所述第二球顶部分3112贴合于与所述第二固定部314固定，且夹设与所述第二固定部314与所述第一音圈32之间，进一步地，所述第一固定部313部分夹持于所述盆架1与所述极芯222之间。所述第一固定部313对应所述盆架1第一传声孔15的位置设有第二传声孔3131。所述第一固定部313形成所述第二传声孔3131的部分贴合固定于所述盆架1形成所述第一传声孔15的底壁上。
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以及连接所述第二振膜41与所述第二音圈42的音圈骨架43，所述第二音圈42至少部分插设于所述第二磁间隙230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。所述第二振膜41包括第二折环411、环绕所述第二折环411设置的第二球顶412、环绕所述第二球顶412设置的第三折环413。所述第二折环411、第二球顶412、第三折环413均为中空环状结构，且所述第二折环411为沿振动方向向上突起的结构，所述第三折环413为沿振动方向向下凹陷的结构，所述音圈骨架43连接所述第二折环411、第二球顶412、第三折环413与所述第二音圈42。所述第二折环411靠近所述第一振膜31的一端固定于所述盆架1的外壁面14或/和所述第一磁钢221上，所述第三折环413的外边缘包括第三固定部4131。
所述第一振动系统3、第二振动系统4与所述壳体300的上壳体302之间形成前腔303，第一振动系统3对应的前腔部分与第二振动系统4对应的前腔部分通过第一传声孔15和第二传声孔3131连通，由于所述导声通道400的长度大于所述盆架1第一传声孔15的长度，使得高音部分可以沿着逐渐扩散的方向形成喇叭状发出至所述壳体300的外侧，提高了同轴扬声器箱200的指向性，同时前腔303谐振能量提高。
所述磁轭24对应所述第二音圈42的位置设有让位凹陷部241，以提供第二音圈42足够的振动空间。
嵌件5设置于所述磁碗21侧部211围设成的收容空间210内，第一电路板6贴设于所述磁轭24的外表面，所述嵌件5设有贯穿其上的第一端子91，所述第一端子91与第一电路板6连接，所述第一音圈32通过所述第一端子91与所述第一电路板6实现电性连接。所述嵌件5设有贯穿其上的泄漏通道51。
支撑架7为环形钢环，所述第三折环413的第三固定部4131固定连接于所述支撑架7，具体的，第三固定部4131包覆所述支撑架7的上表面及部分外侧面。所述极芯222固定于所述支撑架远离第二振膜41的一端。
弹性组件8连接所述音圈骨架43与所述支撑架7，所述弹性组件8包括第二电路板81与所述第二电路板81连接的支撑振膜82，所述第二音圈42与所述第二电路板81电性连接，具体的，所述扬声器单体100还包括与所述第二电路板81连接的第二端子92，所述第二音圈42通过所述第二端子92与所述第二电路板81电性连接。在本实施例中，弹性组件8的数量为两个，且设置在扬声器单体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包括与所述第二球顶412贴合的骨架平板部431、自所述骨架平板部431的一端向着所述第二电路板81弯折延伸并与所述第二电路板81连接的第一延伸部432及自所述骨架平板部431的另一端向着所述第二音圈42弯折延伸并与所述第二音圈42连接的第二延伸部433。
与相关技术相比，本发明的同轴扬声器箱，其包括：壳体、收容于所述壳体内的扬声器单体以及将所述扬声器单体发出的声音自所述壳体侧面导出至所述壳体外的导声通道，所述扬声器单体包括盆架、固定于所述盆架下方的磁路系统、固定于所述盆架内侧的第一振动系统及固定于所述盆架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，所述第一振膜发出的高音穿过所述盆架自所述导声通道传至所述壳体外，所述第二振膜用于低音发声，所述第二振膜发出的低音自所述导声通道传至所述壳体外。本发明的同轴扬声器箱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单体，为同轴扬声器箱提供高品质音效，高音、低音共用侧导声通道，在低音通道里形成前腔谐振改善高频音效，高音气流从盆架的一侧处出声，提高了扬声器箱的指向性。
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. 一种同轴扬声器箱，其包括：壳体、收容于所述壳体内的扬声器单体以及将所述扬声器单体发出的声音自所述壳体侧面导出至所述壳体外的导声通道，其特征在于：所述扬声器单体包括盆架、固定于所述盆架下方的磁路系统、固定于所述盆架内侧的第一振动系统及固定于所述盆架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、第二振动系统与所述壳体之间形成前腔，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，所述第一振膜发出的高音穿过所述盆架自所述导声通道传至所述壳体外，所述第二振膜用于低音发声，所述第二振膜发出的低音自所述导声通道传至所述壳体外。
  2. 根据权利要求1所述的同轴扬声器箱，其特征在于，所述盆架为环形结构且包括与所述壳体抵接的上壁面、固定于所述磁路系统的下壁面、连接所述上壁面与所述下壁面的内壁面及外壁面，所述盆架自所述上壁面朝着下壁面的方向凹陷形成第一传声孔，所述第一传声孔未贯穿至所述下壁面。
  3. 根据权利要求2所述的同轴扬声器箱，其特征在于，所述导声通道的长度大于所述盆架第一传声孔的长度。
  4. 根据权利要求1所述的同轴扬声器箱，其特征在于，所述扬声器单体还包括被所述磁路系统环绕设置的嵌件以及与所述嵌件固定的第一电路板，所述嵌件设有贯穿其上的第一端子，所述第一音圈通过所述第一端子与所述第一电路板电性连接。
  5. 根据权利要求4所述的同轴扬声器箱，其特征在于，所述扬声器单体还包括支撑架、连接所述第二振动系统与所述支撑架的弹性组件，所述弹性组件包括第二电路板及与所述第二电路板连接的支撑振膜，所述第二音圈与所述第二电路板电性连接。
  6. 根据权利要求5述的同轴扬声器箱，其特征在于，所述磁路系统包括磁碗，所述磁碗包括围设成收容空间的侧部以及自所述侧部一端弯折延伸形成的底部，所述磁路系统还包括设置于所述磁碗一侧的第一磁钢组件及设置于所述磁碗另一侧的第二磁钢组件，所述第一磁钢组件包括第一磁钢，所述第一磁钢与所述磁碗的侧壁之间形成所述第一磁间隙，所述第二磁钢组件包括第二磁钢及位于第二磁钢外侧且与所述第二磁钢形成所述第二磁间隙的第三磁钢。
  7. 根据权利要求6所述的同轴扬声器箱，其特征在于，所述第一振膜包括第一球顶以及环绕所述第一球顶的第一折环，所述第一折环设有第一固定部，所述第一固定部贴合于所述盆架的内壁面固定。
  8. 根据权利要求7所述的同轴扬声器箱，其特征在于，所述第一固定部对应所述盆架第一传声孔的位置设有第二传声孔。
  9. 根据权利要求8所述的同轴扬声器箱，其特征在于，所述第一固定部形成所述第二传声孔的部分贴合固定于所述盆架形成所述第一传声孔的底壁上。
  10. 根据权利要求7所述的同轴扬声器箱，其特征在于，所述第一磁钢组件包括设置于所述第一磁钢上的极芯，所述第一固定部部分夹持于所述盆架的内壁面与所述极芯之间。
PCT/CN2022/106755 2022-06-30 2022-07-20 同轴扬声器箱 WO2024000691A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112468908A (zh) * 2020-12-18 2021-03-09 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱及其装配方法
CN213342571U (zh) * 2020-09-25 2021-06-01 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213426389U (zh) * 2020-09-25 2021-06-11 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213426388U (zh) * 2020-09-25 2021-06-11 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN214381369U (zh) * 2021-02-02 2021-10-08 歌尔股份有限公司 发声装置和耳机

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CN213342571U (zh) * 2020-09-25 2021-06-01 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213426389U (zh) * 2020-09-25 2021-06-11 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213426388U (zh) * 2020-09-25 2021-06-11 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
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