WO2017161473A1 - Light-weight vehicle-mounted vibration speaker based on 3d-sound effect - Google Patents

Light-weight vehicle-mounted vibration speaker based on 3d-sound effect Download PDF

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Publication number
WO2017161473A1
WO2017161473A1 PCT/CN2016/076817 CN2016076817W WO2017161473A1 WO 2017161473 A1 WO2017161473 A1 WO 2017161473A1 CN 2016076817 W CN2016076817 W CN 2016076817W WO 2017161473 A1 WO2017161473 A1 WO 2017161473A1
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WO
WIPO (PCT)
Prior art keywords
vibration
sound
lightweight
fixedly connected
vibration source
Prior art date
Application number
PCT/CN2016/076817
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French (fr)
Chinese (zh)
Inventor
王平
李红元
吴逸飞
Original Assignee
汉得利(常州)电子股份有限公司
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Application filed by 汉得利(常州)电子股份有限公司 filed Critical 汉得利(常州)电子股份有限公司
Priority to PCT/CN2016/076817 priority Critical patent/WO2017161473A1/en
Publication of WO2017161473A1 publication Critical patent/WO2017161473A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04Plane diaphragms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/04Construction, mounting, or centering of coil

Definitions

  • the invention relates to a loudspeaker, in particular to a lightweight on-board vibration loudspeaker based on 3D sound.
  • the sound system of the conventional car on the market is matched with the traditional tweeter and the door woofer.
  • the disadvantage of the door speaker is that it is bulky, high in cost, and takes up a large space. It is easy to be unbalanced during the running of the vehicle, causing distortion of the speaker. , affecting the quality of the speaker sound.
  • a lightweight on-board vibration speaker based on 3D sound effects comprising a supporting device mounted on a vehicle, an elastic connecting member, a radiant panel, a damper cover and a vibration source, wherein the supporting device and the radiant panel are connected by an elastic connecting member, the damper cover and The support device is fixedly connected, and the damper cover, the support device, the elastic connecting member and the radiation plate are enclosed to form a vibration cavity, and the vibration source is disposed in the vibration cavity, and one end of the vibration source is fixedly connected with the radiation plate, and the other end is The damper cover is fixedly connected, and the damper cover is made of an aramid fiber woven material.
  • the invention forms a woofer unit through a radiant panel with an elastic connecting member and a vibration source, and the radiant panel diverges the sound transmission of the vibration source, thereby effectively increasing the area of the vibration source to improve the sound pressure of the speaker, and effectively reducing
  • the volume, cost and weight of the product are fixed by the support device and the damper cover made of aramid fiber woven material to prevent the vibration source from being unbalanced during the running of the vehicle, effectively reducing the distortion of the speaker and improving the sound quality of the vibration source.
  • the woofer F0 enhances the low frequency effect.
  • the damper cover is made of Conex material in order to ensure that the damper cover forms sufficient support for the vibration source.
  • the vibration source loudness of the radiant panel and the effective bandwidth of the vibration source are increased, and the radiant panel adopts a honeycomb panel of 1.5 mm to 2.5 mm.
  • the radiant panel has a thickness of 2 mm, and the bandwidth can be broadened from the original 250HZ-13000HZ to 120HZ-20000HZ.
  • the elastic connecting member has a ring shape
  • the elastic connecting member includes an integrally formed outer ring, an excessive portion and an inner ring in order from the outside to the inner, the excessive section
  • the semicircular shape is fixedly connected to the radiation plate, and the outer ring is fixedly connected with the supporting device.
  • the supporting device comprises a support frame having a circular cross section and an annular step disposed on the inner wall of the support frame, the annular steps being fixedly connected to the outer ring and the damper cover, respectively.
  • the damper cover includes a connecting portion, a reinforcing portion and a supporting portion, the connecting portion is fixedly connected with the fixing frame, and the supporting portion is fixedly connected with the vibration source, and the outer portion of the reinforcing portion and the connecting portion are Connected, the inner side is connected to the support portion, and the reinforcing portion has a wave-shaped cross section.
  • the reinforcing portion has a flare shape in order to ensure that the damper cover forms sufficient support for the vibration source.
  • the reinforcing portion is annular in order to ensure that the damper cover forms sufficient support for the vibration source.
  • the vibration source includes a magnetic cover, the magnetic cover has an upwardly open cavity, a magnet is fixed in the cavity, and a pole piece is fixed on the magnet, the pole a voice coil is sleeved on an outer circumference of the sheet; a magnetic fluid is filled in a gap between the voice coil and the pole piece, and a basin frame is arranged on the outer side of the magnetic cover, and a positioning piece is fixed on the basin frame, and the positioning piece is fixed on the positioning piece Fixed setting connection board, even The vibration damping pad is fixedly arranged on the connecting plate, and the vibration damping pad is fixedly connected with the radiation plate, so that the magnetic cover and the magnet are glued to form an external magnetic field, and the pole piece and the magnet are glued to form an internal magnetic field, and the voice coil is located inside.
  • the cutting magnetic field moves downward, and the positioning piece supports the voice coil.
  • the magnetic liquid acts as a damping between the voice coil and the pole piece, and the voice coil vibrates up and down and transmits the vibration to the connecting plate, and the connection is made.
  • the board transmits the vibration to the radiant panel through the cushion, and the vibration absorbing pad prevents the vibration source and the radiant panel from resonating, resulting in a problem of large sound distortion and poor sound.
  • FIG. 1 is a schematic structural view of a first embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a positioning piece according to Embodiment 1 of the present invention.
  • Fig. 3 is a cross-sectional view showing a positioning piece according to a first embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a second embodiment of the present invention.
  • Fig. 5 is a schematic structural view of a vibration source of the present invention.
  • 1 is the car door panel
  • 2 is the support frame
  • 21 is the annular step
  • 3 is the elastic connecting piece
  • 31 is the outer ring
  • 32 is the over part
  • 33 is the inner ring
  • 4 is the radiant panel
  • 5 is the damper cover
  • 52 is the reinforcement
  • 53 is the support
  • 6 is the vibration source
  • 7 is the magnetic cover
  • 8 is the magnet
  • 9 is the pole piece
  • 10 is the voice coil
  • 11 is the magnetic fluid
  • 12 is the basin frame
  • 13 is Positioning the piece
  • 14 is the connecting plate
  • 15 is the cushion.
  • the lightweight vehicle vibration speaker based on the 3D sound effect of the present invention comprises a support frame 2, an elastic connecting member 3, a radiation plate 4, a damper cover 5, and a vibration source 6 mounted on the door panel 1, and the damper cover 5
  • the support frame 2 has a circular cross section, and the inner wall of the support frame 2 is provided with an annular step 21, the damper cover 5 is fixedly connected with the annular step 21, and the radiant panel 4 is fixed with the elastic connecting member 3.
  • connection, the elastic connecting member 3 is fixedly connected with the annular step 21, the damping cover 5, the annular step 21, the elastic connecting member 3 and the radiation plate 4 are enclosed to form a vibration cavity, and the vibration source is disposed in the vibration cavity, and the vibration source has one end and the radiation plate.
  • the connection is fixed and the other end is fixedly connected to the damper cover.
  • the radiant panel with the elastic connecting member forms a woofer unit with the vibration source, and the radiant panel diverges the sound transmission of the vibration source, thereby effectively increasing the area of the vibration source to improve the sound pressure of the speaker, and effectively reducing the volume of the product.
  • Cost, weight, damper cover made of support frame, annular step and aramid fiber woven material to fix the woofer prevent the vibration source from unbalanced during the running of the vehicle, effectively reduce the distortion of the speaker and improve the sound quality of the vibration source.
  • the vibration source F0 can be reduced by the elastic connecting member to enhance the low frequency effect.
  • the radiant panel is made of 1.5mm-2.5mm honeycomb panel.
  • the radiant panel 4 has a thickness of 2mm, and the bandwidth can be widened from the original 250HZ-13000HZ. To 120HZ-20000HZ.
  • the elastic connecting member 3 has a ring shape, and the elastic connecting member includes an integrally formed outer ring 31, an excessive portion 32 and an inner ring in order from the outside to the inside. 33.
  • the excess portion 32 has a semicircular cross section, the inner ring 33 is fixedly connected to the radiation plate 4, and the outer ring 31 is fixedly connected to the annular step 21.
  • the elastic connecting member 3 is made of a rubber material.
  • the vibration source 6 includes a magnetic cover 7 fixedly coupled to the damper cover 5, the magnetic cover 7 having an upwardly open cavity in which a magnet 8 is fixed; and a magnet is fixed above the magnet 8 a sheet 9 on the outer circumference of the pole piece 9 is covered with a voice coil 10; the gap between the voice coil 10 and the pole piece 9 is filled with a magnetic fluid 11, and the outer surface of the magnetic cover 7 is provided with a basin frame 12, the basin A positioning piece 13 is fixed on the frame 12, a connecting plate 14 is fixedly disposed on the positioning piece 13, and a damping pad 15 is fixedly disposed on the connecting plate 14, the vibration damping The pad 15 is fixedly connected to the radiant panel 4.
  • the vibration source structure is adopted, the magnetic cover and the magnet are glued to form an external magnetic field, and the pole piece and the magnet are glued to form an internal magnetic field, and the voice coil is placed in the internal magnetic field to perform the cutting magnetic field downward movement, and the positioning piece is opposite to the voice coil.
  • the magnetic fluid acts as a damping between the voice coil and the pole piece.
  • the voice coil vibrates up and down and transmits the vibration to the connecting plate.
  • the connecting plate transmits the vibration to the radiant panel through the cushion, and reduces
  • the shock pad avoids the problem of large sound distortion and poor sound when the vibration source and the radiation plate resonate.
  • the damper cover 5 is divided into a connecting portion 51, a reinforcing portion 52 and a supporting portion 53 from the outside to the inside.
  • the connecting portion 51 is connected to the annular step 21, and the supporting portion 53 is connected to the vibration source, and the reinforcing portion 52 is connected. It is used for the transition between the connecting portion 51 and the supporting portion 53 and enhances the strength of the entire damper cover 5, and the reinforcing portion 51 has a wavy cross section.
  • Embodiment 1 As can be seen from Fig. 1, the reinforcing portion has a flared shape.
  • Embodiment 2 As can be seen from FIG. 4, the reinforcing portion has a ring shape.
  • the material for making the damper cover may be a Conex material or a Nomex material.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

A light-weight vehicle-mounted vibration speaker based on a 3D-sound effect comprises a support device, an elastic connection member (3), a radiation plate (4), a damping cover (5) and a vibration source (6) that are mounted on an automobile. The support device and the radiation plate (4) are connected by means of the elastic connection member (3). The damping cover (5) and the support device are fixedly connected. The damping cover (5), the support device, the elastic connection member (3) and the radiation plate (4) form a vibration cavity in an encircling manner. The vibration source (6) is disposed in the vibration cavity. One end of the vibration source (6) is fixedly connected to the radiation plate (4), and the other end is fixedly connected to the damping cover (5). The damping cover (5) is made of an aramid fiber knitting material. By means of the solution, the size, cost, and weight of the product are effectively reduced, the vibration source (6) is prevented from being out of balance during the driving process of the vehicle, distortion of the speaker is effectively reduced, the sound quality of the vibration source is improved; and the vibration source F0 is reduced by means of the elastic connection member (3), and the low-frequency effect is improved.

Description

基于3D音效的轻量化车载震动扬声器Lightweight car vibration speaker based on 3D sound 技术领域Technical field
本发明涉及一种扬声器,特别是基于3D音效的轻量化车载震动扬声器。The invention relates to a loudspeaker, in particular to a lightweight on-board vibration loudspeaker based on 3D sound.
背景技术Background technique
目前市场上面常规汽车的音响系统都是用传统的高音扬声器与车门低音扬声器配套使用,但是车门扬声器的缺点是体积大、成本高、占用空间大,在车辆行驶过程中容易失衡,造成扬声器的失真,影响扬声器声音的品质。At present, the sound system of the conventional car on the market is matched with the traditional tweeter and the door woofer. However, the disadvantage of the door speaker is that it is bulky, high in cost, and takes up a large space. It is easy to be unbalanced during the running of the vehicle, causing distortion of the speaker. , affecting the quality of the speaker sound.
发明内容Summary of the invention
本发明的目的是提供一种体积小、成本低、有效降低扬声器的失真、提升扬声器声音的品质的有效频宽的基于3D音效的轻量化车载震动扬声器。It is an object of the present invention to provide a lightweight 3D sound-based vehicle vibration speaker that is small in size, low in cost, effective in reducing distortion of a speaker, and improving the effective bandwidth of speaker sound quality.
实现本发明目的的技术方案如下:The technical solution for achieving the object of the present invention is as follows:
基于3D音效的轻量化车载震动扬声器,包括安装在汽车上的支撑装置、弹性连接件、辐射板、阻尼罩以及振动源,所述支撑装置与辐射板通过弹性连接件连接,所述阻尼罩与支撑装置固定连接,所述阻尼罩、支撑装置、弹性连接件以及辐射板合围形成振动空腔,所述振动源设置在振动空腔内,所述振动源一端与辐射板固定连接,另一端与阻尼罩固定连接,所述阻尼罩由芳纶纤维编织材料制成。A lightweight on-board vibration speaker based on 3D sound effects, comprising a supporting device mounted on a vehicle, an elastic connecting member, a radiant panel, a damper cover and a vibration source, wherein the supporting device and the radiant panel are connected by an elastic connecting member, the damper cover and The support device is fixedly connected, and the damper cover, the support device, the elastic connecting member and the radiation plate are enclosed to form a vibration cavity, and the vibration source is disposed in the vibration cavity, and one end of the vibration source is fixedly connected with the radiation plate, and the other end is The damper cover is fixedly connected, and the damper cover is made of an aramid fiber woven material.
采用上述结构后,本发明通过带有弹性连接件的辐射板与振动源形成低音单元,辐射板将振动源的声音传递发散出去,有效提高了振动源的面积来提高扬声器声压,并且有效降低了产品的体积、成本及重量,通过支撑装置以及芳纶纤维编织材料制成的阻尼罩固定住低音单元,防止振动源在车辆行驶过程中失衡,有效降低扬声器的失真,提升振动源声音的品质,通过弹性连接件降低 低音单元F0,提升低频效果。After adopting the above structure, the invention forms a woofer unit through a radiant panel with an elastic connecting member and a vibration source, and the radiant panel diverges the sound transmission of the vibration source, thereby effectively increasing the area of the vibration source to improve the sound pressure of the speaker, and effectively reducing The volume, cost and weight of the product are fixed by the support device and the damper cover made of aramid fiber woven material to prevent the vibration source from being unbalanced during the running of the vehicle, effectively reducing the distortion of the speaker and improving the sound quality of the vibration source. , reduced by elastic connectors The woofer F0 enhances the low frequency effect.
优选的,为了保证阻尼罩对振动源形成足够的支撑,所述阻尼罩由Conex材料制成。Preferably, the damper cover is made of Conex material in order to ensure that the damper cover forms sufficient support for the vibration source.
优选的,为了增强辐射板的强度,提升辐射板的振动源响度以及拓展振动源的有效频宽,所述辐射板采用1.5mm-2.5mm的蜂窝板。Preferably, in order to enhance the strength of the radiant panel, the vibration source loudness of the radiant panel and the effective bandwidth of the vibration source are increased, and the radiant panel adopts a honeycomb panel of 1.5 mm to 2.5 mm.
优选的,所述辐射板厚度为2mm,频宽可以由原来的250HZ-13000HZ拓宽到120HZ-20000HZ。Preferably, the radiant panel has a thickness of 2 mm, and the bandwidth can be broadened from the original 250HZ-13000HZ to 120HZ-20000HZ.
优选的,为了优化降低振动源F0,提升低频效果,所述弹性连接件呈环形,所述弹性连接件从外至内依次包括一体成型的外环、过度部以及内环,所述过度部截面呈半圆形,所述内环与辐射板固定连接,外环与支撑装置固定连接。Preferably, in order to optimize the lowering of the vibration source F0, the elastic connecting member has a ring shape, and the elastic connecting member includes an integrally formed outer ring, an excessive portion and an inner ring in order from the outside to the inner, the excessive section The semicircular shape is fixedly connected to the radiation plate, and the outer ring is fixedly connected with the supporting device.
优选的,为了增强振动源的稳定性,所述支撑装置包括截面呈环形的支撑架以及设置在支撑架内壁的环形台阶,所述环形台阶分别与外环以及阻尼罩固定连接。Preferably, in order to enhance the stability of the vibration source, the supporting device comprises a support frame having a circular cross section and an annular step disposed on the inner wall of the support frame, the annular steps being fixedly connected to the outer ring and the damper cover, respectively.
优选的,为了保证阻尼罩的强度,所述阻尼罩包括连接部、加强部以及支撑部,所述连接部与固定架固定连接,支撑部与振动源固定连接,所述加强部外侧与连接部连接,内侧与支撑部连接,所述加强部截面呈波浪形。Preferably, in order to ensure the strength of the damper cover, the damper cover includes a connecting portion, a reinforcing portion and a supporting portion, the connecting portion is fixedly connected with the fixing frame, and the supporting portion is fixedly connected with the vibration source, and the outer portion of the reinforcing portion and the connecting portion are Connected, the inner side is connected to the support portion, and the reinforcing portion has a wave-shaped cross section.
优选的,为了保证阻尼罩对振动源形成足够的支撑,所述加强部呈喇叭状。Preferably, the reinforcing portion has a flare shape in order to ensure that the damper cover forms sufficient support for the vibration source.
优选的,为了保证阻尼罩对振动源形成足够的支撑,所述加强部呈环形。Preferably, the reinforcing portion is annular in order to ensure that the damper cover forms sufficient support for the vibration source.
优选的,为了保证振动源的音质,所述振动源包括磁罩,所述磁罩具有向上开放的空腔,所述空腔内固定有磁铁;所述磁铁上方固定有极片,所述极片的外侧圆周上套有音圈;所述音圈与极片的间隙中填充磁液,所述磁罩外侧套装有盆架,所述盆架上固定有定位支片,所述定位支片上固定设置连接板,连 接板上固定设置减振垫,所述减振垫与辐射板固定连接,这样,磁罩与磁铁用胶水粘接形成外磁场,极片与磁铁用胶水粘接形成内磁场,音圈位于内磁场中通电后做切割磁力线上下运动,定位支片对音圈起到支撑作用,磁液位于音圈与极片中间起到阻尼的作用,音圈上下振动并将振动传输到连接板上,连接板再通过减震垫将震动传输到辐射板上,通过减震垫避免振动源与辐射板产生共振时导致声音失真大、声音差的问题。Preferably, in order to ensure the sound quality of the vibration source, the vibration source includes a magnetic cover, the magnetic cover has an upwardly open cavity, a magnet is fixed in the cavity, and a pole piece is fixed on the magnet, the pole a voice coil is sleeved on an outer circumference of the sheet; a magnetic fluid is filled in a gap between the voice coil and the pole piece, and a basin frame is arranged on the outer side of the magnetic cover, and a positioning piece is fixed on the basin frame, and the positioning piece is fixed on the positioning piece Fixed setting connection board, even The vibration damping pad is fixedly arranged on the connecting plate, and the vibration damping pad is fixedly connected with the radiation plate, so that the magnetic cover and the magnet are glued to form an external magnetic field, and the pole piece and the magnet are glued to form an internal magnetic field, and the voice coil is located inside. After the magnetic field is energized, the cutting magnetic field moves downward, and the positioning piece supports the voice coil. The magnetic liquid acts as a damping between the voice coil and the pole piece, and the voice coil vibrates up and down and transmits the vibration to the connecting plate, and the connection is made. The board transmits the vibration to the radiant panel through the cushion, and the vibration absorbing pad prevents the vibration source and the radiant panel from resonating, resulting in a problem of large sound distortion and poor sound.
附图说明DRAWINGS
下面结合附图和具体实施方式对本发明作进一步详细的说明。The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
图1为本发明的实施例一的结构示意图。FIG. 1 is a schematic structural view of a first embodiment of the present invention.
图2为本发明的实施例一的定位支片的结构示意图。2 is a schematic structural view of a positioning piece according to Embodiment 1 of the present invention.
图3为本发明的实施例一的定位支片的剖视图。Fig. 3 is a cross-sectional view showing a positioning piece according to a first embodiment of the present invention.
图4为本发明的实施例二的结构示意图。4 is a schematic structural view of a second embodiment of the present invention.
图5为本发明的振动源的结构示意图。Fig. 5 is a schematic structural view of a vibration source of the present invention.
图中:1为汽车门板,2为支撑架,21为环形台阶,3为弹性连接件,31为外环,32为过度部,33为内环,4为辐射板,5为阻尼罩,51为连接部,52为加强部,53为支撑部,6为振动源,7为磁罩,8为磁铁,9为极片,10为音圈,11为磁液,12为盆架,13为定位支片,14为连接板,15为减震垫。In the figure: 1 is the car door panel, 2 is the support frame, 21 is the annular step, 3 is the elastic connecting piece, 31 is the outer ring, 32 is the over part, 33 is the inner ring, 4 is the radiant panel, 5 is the damper cover, 51 For the connection, 52 is the reinforcement, 53 is the support, 6 is the vibration source, 7 is the magnetic cover, 8 is the magnet, 9 is the pole piece, 10 is the voice coil, 11 is the magnetic fluid, 12 is the basin frame, 13 is Positioning the piece, 14 is the connecting plate, and 15 is the cushion.
具体实施方式detailed description
由图1至图4可知本发明基于3D音效的轻量化车载震动扬声器包括安装在汽车门板1上的支撑架2、弹性连接件3、辐射板4、阻尼罩5以及振动源6,阻尼罩5芳纶纤维编织材料制成,支撑架2截面呈环形,支撑架2的内壁设有环形台阶21,阻尼罩5与环形台阶21固定连接,辐射板4与弹性连接件3固定 连接,弹性连接件3与环形台阶21固定连接,阻尼罩5、环形台阶21、弹性连接件3以及辐射板4合围形成振动空腔,振动源设置在振动空腔内,振动源一端与辐射板固定连接,另一端与阻尼罩固定连接。1 to 4, the lightweight vehicle vibration speaker based on the 3D sound effect of the present invention comprises a support frame 2, an elastic connecting member 3, a radiation plate 4, a damper cover 5, and a vibration source 6 mounted on the door panel 1, and the damper cover 5 Made of aramid fiber woven material, the support frame 2 has a circular cross section, and the inner wall of the support frame 2 is provided with an annular step 21, the damper cover 5 is fixedly connected with the annular step 21, and the radiant panel 4 is fixed with the elastic connecting member 3. The connection, the elastic connecting member 3 is fixedly connected with the annular step 21, the damping cover 5, the annular step 21, the elastic connecting member 3 and the radiation plate 4 are enclosed to form a vibration cavity, and the vibration source is disposed in the vibration cavity, and the vibration source has one end and the radiation plate. The connection is fixed and the other end is fixedly connected to the damper cover.
采用上述结构,带有弹性连接件的辐射板与振动源形成低音单元,辐射板将振动源的声音传递发散出去,有效提高了振动源的面积来提高扬声器声压,并且有效降低了产品的体积、成本及重量,通过支撑架、环形台阶以及芳纶纤维编织材料制成的阻尼罩固定住低音单元,防止振动源在车辆行驶过程中失衡,有效降低扬声器的失真,提升振动源声音的品质,通过弹性连接件可以降低振动源F0,提升低频效果。According to the above structure, the radiant panel with the elastic connecting member forms a woofer unit with the vibration source, and the radiant panel diverges the sound transmission of the vibration source, thereby effectively increasing the area of the vibration source to improve the sound pressure of the speaker, and effectively reducing the volume of the product. Cost, weight, damper cover made of support frame, annular step and aramid fiber woven material to fix the woofer, prevent the vibration source from unbalanced during the running of the vehicle, effectively reduce the distortion of the speaker and improve the sound quality of the vibration source. The vibration source F0 can be reduced by the elastic connecting member to enhance the low frequency effect.
为了提升低音单元的响度以及拓展低音单元的有效频宽,辐射板采用1.5mm-2.5mm的蜂窝板制成,作为优选方案,辐射板4厚度为2mm,频宽可以由原来的250HZ-13000HZ拓宽到120HZ-20000HZ。In order to improve the loudness of the woofer and expand the effective bandwidth of the woofer, the radiant panel is made of 1.5mm-2.5mm honeycomb panel. As a preferred solution, the radiant panel 4 has a thickness of 2mm, and the bandwidth can be widened from the original 250HZ-13000HZ. To 120HZ-20000HZ.
为了确保弹性连接件降低振动源F0,提升低频效果,由图1可知,弹性连接件3呈环形,所述弹性连接件从外至内依次包括一体成型的外环31、过度部32以及内环33,所述过度部32截面呈半圆形,所述内环33与辐射板4固定连接,外环31与环形台阶21固定连接。In order to ensure that the elastic connecting member reduces the vibration source F0 and enhances the low frequency effect, it can be seen from FIG. 1 that the elastic connecting member 3 has a ring shape, and the elastic connecting member includes an integrally formed outer ring 31, an excessive portion 32 and an inner ring in order from the outside to the inside. 33. The excess portion 32 has a semicircular cross section, the inner ring 33 is fixedly connected to the radiation plate 4, and the outer ring 31 is fixedly connected to the annular step 21.
作为优选方案,弹性连接件3由橡胶材料制成。As a preferred solution, the elastic connecting member 3 is made of a rubber material.
由图5可知,振动源6包括与阻尼罩5固定连接的磁罩7,所述磁罩7具有向上开放的空腔,所述空腔内固定有磁铁8;所述磁铁8上方固定有极片9,所述极片9的外侧圆周上套有音圈10;所述音圈10与极片9的间隙中填充磁液11,所述磁罩7外侧套装有盆架12,所述盆架12上固定有定位支片13,所述定位支片13上固定设置连接板14,连接板14上固定设置减振垫15,所述减振 垫15与辐射板4固定连接。As can be seen from FIG. 5, the vibration source 6 includes a magnetic cover 7 fixedly coupled to the damper cover 5, the magnetic cover 7 having an upwardly open cavity in which a magnet 8 is fixed; and a magnet is fixed above the magnet 8 a sheet 9 on the outer circumference of the pole piece 9 is covered with a voice coil 10; the gap between the voice coil 10 and the pole piece 9 is filled with a magnetic fluid 11, and the outer surface of the magnetic cover 7 is provided with a basin frame 12, the basin A positioning piece 13 is fixed on the frame 12, a connecting plate 14 is fixedly disposed on the positioning piece 13, and a damping pad 15 is fixedly disposed on the connecting plate 14, the vibration damping The pad 15 is fixedly connected to the radiant panel 4.
采用上述振动源结构,磁罩与磁铁用胶水粘接形成外磁场,极片与磁铁用胶水粘接形成内磁场,音圈位于内磁场中通电后做切割磁力线上下运动,定位支片对音圈起到支撑作用,磁液位于音圈与极片中间起到阻尼的作用,音圈上下振动并将振动传输到连接板上,连接板再通过减震垫将震动传输到辐射板上,通过减震垫避免振动源与辐射板产生共振时导致声音失真大、声音差的问题。The vibration source structure is adopted, the magnetic cover and the magnet are glued to form an external magnetic field, and the pole piece and the magnet are glued to form an internal magnetic field, and the voice coil is placed in the internal magnetic field to perform the cutting magnetic field downward movement, and the positioning piece is opposite to the voice coil. Supporting, the magnetic fluid acts as a damping between the voice coil and the pole piece. The voice coil vibrates up and down and transmits the vibration to the connecting plate. The connecting plate transmits the vibration to the radiant panel through the cushion, and reduces The shock pad avoids the problem of large sound distortion and poor sound when the vibration source and the radiation plate resonate.
由图1和图4可知,阻尼罩5从外到内依次分为连接部51、加强部52以及支撑部53,连接部51与环形台阶21连接,支撑部53与振动源连接,加强部52用于连接部51与支撑部53之间的过渡并且增强阻尼罩5整体的强度,加强部51截面呈波浪形。As can be seen from FIG. 1 and FIG. 4, the damper cover 5 is divided into a connecting portion 51, a reinforcing portion 52 and a supporting portion 53 from the outside to the inside. The connecting portion 51 is connected to the annular step 21, and the supporting portion 53 is connected to the vibration source, and the reinforcing portion 52 is connected. It is used for the transition between the connecting portion 51 and the supporting portion 53 and enhances the strength of the entire damper cover 5, and the reinforcing portion 51 has a wavy cross section.
关于阻尼罩的形状,可以有以下两个优选的实施例:Regarding the shape of the damper cover, there are two preferred embodiments:
实施例一:由图1可知,加强部呈喇叭状。 Embodiment 1 As can be seen from Fig. 1, the reinforcing portion has a flared shape.
实施例二:由图4可知,加强部呈环形。Embodiment 2: As can be seen from FIG. 4, the reinforcing portion has a ring shape.
关于制作阻尼罩的材料,可以是Conex材料,还可以是Nomex材料。The material for making the damper cover may be a Conex material or a Nomex material.
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。 The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related The technical field is equally included in the scope of patent protection of the present invention.

Claims (10)

  1. 基于3D音效的轻量化车载震动扬声器,其特征在于:包括安装在汽车上的支撑装置、弹性连接件、辐射板、阻尼罩以及振动源,所述支撑装置与辐射板通过弹性连接件连接,所述阻尼罩与支撑装置固定连接,所述阻尼罩、支撑装置、弹性连接件以及辐射板合围形成振动空腔,所述振动源设置在振动空腔内,所述振动源一端与辐射板固定连接,另一端与阻尼罩固定连接,所述阻尼罩由芳纶纤维编织材料制成。A lightweight on-board vibration speaker based on 3D sound, comprising: a supporting device mounted on the automobile, an elastic connecting member, a radiant panel, a damper cover and a vibration source, wherein the supporting device and the radiant panel are connected by an elastic connecting member. The damper cover is fixedly connected to the supporting device, and the damper cover, the supporting device, the elastic connecting member and the radiation plate are enclosed to form a vibration cavity, the vibration source is disposed in the vibration cavity, and one end of the vibration source is fixedly connected with the radiation plate The other end is fixedly connected to the damper cover, and the damper cover is made of aramid fiber woven material.
  2. 根据权利要求1所述的基于3D音效的轻量化车载震动扬声器,其特征在于:所述阻尼罩由Conex材料制成。The lightweight 3D sound-based vehicle vibration speaker according to claim 1, wherein the damper cover is made of a Conex material.
  3. 根据权利要求1所述的基于3D音效的轻量化车载震动扬声器,其特征在于:所述辐射板采用1.5mm-2.5mm的蜂窝板。The 3D sound-based lightweight vehicle-mounted vibration speaker according to claim 1, wherein the radiation plate adopts a honeycomb plate of 1.5 mm to 2.5 mm.
  4. 根据权利要求3所述的基于3D音效的轻量化车载震动扬声器,其特征在于:所述辐射板厚度为2mm。The lightweight 3D sound-based vehicle vibration speaker according to claim 3, wherein the radiation plate has a thickness of 2 mm.
  5. 根据权利要求3所述的基于3D音效的轻量化车载震动扬声器,其特征在于:所述弹性连接件呈环形,所述弹性连接件从外至内依次包括一体成型的外环、过度部以及内环,所述过度部截面呈半圆形,所述内环与辐射板固定连接,外环与支撑装置固定连接。The 3D sound-based lightweight vehicle-mounted vibration speaker according to claim 3, wherein the elastic connecting member has a ring shape, and the elastic connecting member comprises an integrally formed outer ring, an excessive portion and an inner portion in order from the outside to the inside. The ring has a semicircular cross section, the inner ring is fixedly connected with the radiation plate, and the outer ring is fixedly connected with the supporting device.
  6. 根据权利要求5所述的基于3D音效的轻量化车载震动扬声器,其特征在于:所述支撑装置包括截面呈环形的支撑架以及设置在支撑架内壁的环形台阶,所述环形台阶分别与外环以及阻尼罩固定连接。The lightweight 3D sound-absorbing vehicle vibration speaker according to claim 5, wherein the supporting device comprises a support frame having a circular cross section and an annular step disposed on an inner wall of the support frame, the annular step and the outer ring respectively And a fixed connection of the damper cover.
  7. 根据权利要求1所述的基于3D音效的轻量化车载震动扬声器,其特征在于:所述阻尼罩包括连接部、加强部以及支撑部,所述连接部与固定架固定连接,支撑部与振动源固定连接,所述加强部外侧与连接部连接,内侧与支撑部连接,所述加强部截面呈波浪形。 The lightweight 3D sound-absorbing vehicle vibration speaker according to claim 1, wherein the damper cover comprises a connecting portion, a reinforcing portion and a supporting portion, wherein the connecting portion is fixedly connected with the fixing frame, the supporting portion and the vibration source The connecting portion is connected to the connecting portion, the inner portion is connected to the supporting portion, and the reinforcing portion has a wave-shaped cross section.
  8. 根据权利要求7所述的基于3D音效的轻量化车载震动扬声器,其特征在于:所述加强部呈喇叭状。The lightweight 3D sound-based vehicle vibration speaker according to claim 7, wherein the reinforcing portion has a flared shape.
  9. 根据权利要求7所述的基于3D音效的轻量化车载震动扬声器,其特征在于:所述加强部呈环形。The lightweight 3D sound-based vehicle vibration speaker according to claim 7, wherein the reinforcing portion has a ring shape.
  10. 根据权利要求1至9任意一项所述的基于3D音效的轻量化车载震动扬声器,其特征在于:所述振动源包括磁罩,所述磁罩具有向上开放的空腔,所述空腔内固定有磁铁;所述磁铁上方固定有极片,所述极片的外侧圆周上套有音圈;所述音圈与极片的间隙中填充磁液,所述磁罩外侧套装有盆架,所述盆架上固定有定位支片,所述定位支片上固定设置连接板,连接板上固定设置减振垫,所述减振垫与辐射板固定连接。 The 3D sound-based lightweight vehicle-mounted vibration speaker according to any one of claims 1 to 9, wherein the vibration source comprises a magnetic cover, the magnetic cover has an upwardly open cavity, and the cavity a magnet is fixed; a pole piece is fixed on the magnet, and a voice coil is sleeved on an outer circumference of the pole piece; a magnetic fluid is filled in a gap between the voice coil and the pole piece, and a basin frame is arranged on the outer side of the magnetic cover. A positioning piece is fixed on the basin frame, and a connecting plate is fixedly disposed on the positioning piece. The damping plate is fixedly disposed on the connecting plate, and the vibration damping pad is fixedly connected with the radiation plate.
PCT/CN2016/076817 2016-03-19 2016-03-19 Light-weight vehicle-mounted vibration speaker based on 3d-sound effect WO2017161473A1 (en)

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