WO2020140166A1 - 车载音箱以及汽车 - Google Patents

车载音箱以及汽车 Download PDF

Info

Publication number
WO2020140166A1
WO2020140166A1 PCT/CN2018/125931 CN2018125931W WO2020140166A1 WO 2020140166 A1 WO2020140166 A1 WO 2020140166A1 CN 2018125931 W CN2018125931 W CN 2018125931W WO 2020140166 A1 WO2020140166 A1 WO 2020140166A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
seat
cavity
box
cover plate
Prior art date
Application number
PCT/CN2018/125931
Other languages
English (en)
French (fr)
Inventor
孙舒远
黄兴志
尹昊
许欣
Original Assignee
瑞声科技（南京）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 瑞声科技（南京）有限公司 filed Critical 瑞声科技（南京）有限公司
Priority to PCT/CN2018/125931 priority Critical patent/WO2020140166A1/zh
Publication of WO2020140166A1 publication Critical patent/WO2020140166A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means

Definitions

  • the invention relates to the field of car speakers, in particular to a car speaker and a car adopting the car speaker.
  • the existing car bass design scheme generally adopts a large-diameter circular moving coil electroacoustic transducer. Because this type of transducer has a certain volume, the installation is limited, and it can usually only be installed on the door, trunk lid or Inside the trunk. This traditional car bass design scheme, the sound unit is far away from the user, and the bass has more loss in the air. In order to ensure that each position in the car has sufficient sound pressure level, it often needs a large The input power is not conducive to energy reduction and emission reduction. In addition, in order to ensure a good sound field uniformity in the car, it is generally necessary to arrange multiple woofer units at multiple positions to supplement the sound field in the car, resulting in a large number of speakers in the car. , And the inconsistency of the installation has brought defects in the sound quality of the car.
  • One of the objects of the present invention is to provide a car speaker, which can achieve the advantages of energy saving, emission reduction and cost reduction.
  • An in-vehicle speaker includes a sound box installed on the bottom or back of a car seat and a sound guide box for guiding the sound of the sound box to the bottom of the seat, the sound box has a sounding unit and a coupling A rear cavity and a positive sounding hole, the coupling rear cavity and the positive sounding hole are respectively located on opposite sides of the sounding monomer, and the sound guide box has a sounding front cavity communicating with the positive sounding hole and two Side sound holes in front of and behind the seat to propagate the sound of the sound box, and both of the side sound holes are in communication with the sound-guiding front cavity and are respectively located in two opposite sides of the sound-guiding front cavity side.
  • a passive radiator or an inverter tube is provided at each side sound hole.
  • a sound-absorbing material for enlarging the rear cavity is provided inside the rear cavity.
  • the pronunciation box includes a first cover plate and a second cover plate that surround a sound cavity, the positive sounding hole is provided on the first cover plate, and the sounding unit corresponds to the positive sounding The position of the hole is fixed on the first cover plate, and the coupled cavity is formed by enclosing the second cover plate and the sounding monomer.
  • the sound guide box includes a third cover plate, the third cover plate is fixed to a side of the first cover plate facing away from the second cover plate, and the sound guide front cavity is formed by The second cover plate and the third cover plate are enclosed and formed, and the two side sound holes are respectively provided on opposite sides of the third cover plate.
  • the front cavity of the sound guide and the rear cavity of the coupling are directly opposite to each other; or,
  • the sound-guiding front cavity includes a first sound-guiding cavity directly opposite to the coupling rear cavity and communicating with the positive sounding hole, and is bent from one end of the first sound-guiding cavity and is in contact with the first sound-guiding cavity In the second sound guiding cavity in which the cavity communicates, the two sound outlet holes on the side are respectively provided on two opposite sides of the second sound guiding cavity.
  • a second object of the present invention is to provide an automobile including a first seat, the first seat is provided with the above-mentioned car speaker, and both of the side sound holes are located in the first seat And the bottom of the first seat is inclined toward the front lower side and the rear lower side of the first seat.
  • the in-vehicle speaker is installed outside the first seat, or the sound box is embedded in the first seat.
  • the pronunciation box and the sound guide box are both located at the bottom of the first seat; or,
  • the sound box is located at the back of the first seat, and the sound guide box bends and extends from the back of the first seat to the bottom of the first seat.
  • the automobile further includes a chassis located under the first seat, and both of the side sound holes are inclined toward the chassis; and/or,
  • the automobile further includes a second seat located on the rear side of the first seat.
  • the side sound hole away from the second seat is located on the first seat A visual blind area of a passenger on a seat; when there is a passenger on the second seat, the side sound hole near the second seat is located in the visual blind area of the passenger on the second seat.
  • the embodiment of the utility model includes a sound box and a sound guide box by installing a car speaker, the sound box has a sounding unit, a coupled rear cavity and a positive sound hole, and by setting the sound guide box has a communication with the positive sound hole
  • the sound-guiding front cavity and the two side sound holes are located on the opposite sides of the sound-guiding front cavity through the two side sound holes to propagate the sound to the front and rear.
  • FIG. 1 is a schematic cross-sectional view of a first seat and a car speaker provided in Embodiment 1 of the present invention
  • FIG. 2 is a partially enlarged schematic view of A in FIG. 1;
  • FIG. 3 is an exploded schematic diagram of a car speaker provided in Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of the arrangement of a first seat and a second seat provided by Embodiment 1 of the present invention.
  • FIG. 5 is a schematic cross-sectional view of a first seat and a car speaker provided by Embodiment 2 of the present invention.
  • FIG. 6 is an explosion schematic diagram of a car speaker provided by Embodiment 2 of the present invention.
  • FIG. 7 is a schematic cross-sectional view of a first seat and a car speaker provided by Embodiment 3 of the present invention.
  • FIG. 8 is a schematic diagram of the structure of the car speaker shown in FIG. 7;
  • Embodiment 9 is a schematic cross-sectional view of a first seat and a car speaker provided by Embodiment 4 of the present invention.
  • Embodiment 1 of the present invention provides a vehicle including a first seat 20.
  • a car speaker 30 is provided at the bottom of the first seat 20.
  • the car speaker 30 includes a pronunciation box 31 and a guide speaker 32
  • the sound box 31 has a sounding unit 311, a coupling rear cavity 312 and a positive sounding hole 313, the coupling rear chamber 312 and the positive sounding hole 313 are located on opposite sides of the sounding unit 311 respectively, and the sound guide box 32 has a communication with the positive sounding hole 313
  • the sound-guiding front cavity 321 and two side sound holes 322 respectively facing the front and rear of the first seat 20 to propagate the sound, and the two side sound holes 322 are in communication with the sound-guiding front cavity 321 and are respectively located in the sound-guiding front cavity 321 opposite sides.
  • the sound-generating unit 311 vibrates to transmit sound through the positive sound-generating hole 313 to the sound-guiding front cavity 321, and then through the two side sound-emitting holes 322 to the front
  • the car speaker 30 by placing the car speaker 30 at the bottom of the first seat 20, the car speaker 30 is relative to the first seat 20, or for passengers in the front or rear seats of the first seat 20 Near-field vocalization, short sound propagation path, and small attenuation during propagation.
  • the car speaker 30 provided in Embodiment 1 of the present invention requires a sounding unit 311 compared to the traditional design solution.
  • the input power is smaller, which is more conducive to energy saving and emission reduction; further, by placing two side sound holes 322 on opposite sides of the sound-guiding front cavity 321 for propagation toward the front or rear of the first seat 20, respectively Sound, in this way, one car speaker 30 can simultaneously cover the listening area in front of and behind the first seat 20, which can reduce the number of car speakers 30 used, reduce costs, and save energy.
  • the side sound hole 322 is provided as an elongated hole structure, preferably a rectangular hole or a long waist hole.
  • the sound box 31 includes a first cover plate 314 and a second cover plate 315 surrounding the sound cavity, the positive sound-emitting hole 313 is provided on the first cover plate 314, and the position of the sound-generating unit 311 corresponding to the positive sound-emitting hole 313 is fixed at On the first cover plate 314, the coupled rear cavity 312 is formed by the second cover plate 315 and the sounding unit 311.
  • the sound-generating unit 311 is arranged to be in contact with the first seat 20, the vibration generated when the sound-generating unit 311 is working will be transmitted to the first seat 20, reducing the passenger's ride on the first seat 20 Comfort.
  • the sound box 31 can be installed outside the first seat 20, for example, the second cover plate 315 is fixedly connected to the bottom of the first seat 20 by bolts; or the sound box 31 can also be installed on the first seat 20 Inside, for example, a cavity is provided at the bottom of the first seat 20, and the sound box 31 is embedded in the cavity.
  • the sound guide box 32 includes a third cover plate 323, and the third cover plate 323 is fixed to the side of the first cover plate 314 facing away from the second cover plate 315, and the sound guide front cavity 321 is composed of the second cover plate 315 and the second cover plate 315.
  • the three cover plates 323 are enclosed and formed, and the two side sound holes 322 are respectively provided on two sides opposite to the third cover plate 323.
  • the sound-guiding front cavity 321 and the coupling rear cavity 312 are arranged oppositely.
  • the coupling rear cavity 312 is located at the bottom of the first seat 20, and the sound-guiding front cavity 321 is located directly below the first seat 20.
  • a passive radiator 324 is provided at each side sound hole 322.
  • the vibration of the passive radiator 324 will not attenuate rapidly within a certain range from the resonance frequency, which can create a deep and flexible sound that makes the car speaker 30 has better bass performance.
  • the coupling cavity 312 is provided with a sound absorbing material for enlarging the coupling cavity.
  • the sound absorbing material is activated carbon particles or sound absorbing cotton.
  • the automobile further includes a chassis located below the first seat 20, and the two side sound holes 322 are inclined toward the chassis.
  • the automobile further includes a second seat 40 located on the rear side of the first seat 20.
  • a second seat 40 located on the rear side of the first seat 20.
  • the side sound hole 322 of the 40 is located in the visual blind area of the passenger on the first seat 20; when there is a passenger on the second seat 40, the side sound hole 322 near the second seat 40 is located on the second seat 40 Inside the passenger's visual blind spot S.
  • the side sound hole 322 in the visual blind area S of the passenger on the second seat 40 the function of hiding the side sound hole 322 can be achieved, and the visual experience of the user in the vehicle can be improved.
  • band-pass filtering in the low-frequency sound pressure band can be achieved in accordance with the transfer function curve, which can effectively attenuate the bass unit’s High-frequency components, control the sound emitted by the sounding unit within the specified low frequency range of the band pass, so as to obtain better bass performance, specifically, the low frequency range of the band pass can be 20 ⁇ 200Hz, or you can define the band according to the design ⁇ Scope.
  • the transfer function curve formula is as follows:
  • f is the frequency
  • f b is the resonance frequency of the coupled back cavity
  • f c is the resonance frequency of the acoustically guided front cavity
  • C s is the equivalent acoustic order of the woofer
  • C b is the equivalent acoustic order of the coupled back cavity
  • C c is the equivalent acoustic order of the anterior cavity of the sound guide
  • Q b is the unit above the quality factor of the sound box, which is an international unit.
  • the difference between the car provided in this embodiment and the car provided in Embodiment 1 is that the structure of the sound guide box is different, which is specifically reflected in:
  • the third cover 423 of the sound guide box 42 A passive radiator is not provided at the side sound hole 422, but an inverter tube 424 is provided.
  • providing the inverter tube 424 at the side sound hole 422 can also make the car speaker 40 have better bass performance.
  • two inverter tubes 424 are provided, and the two inverter tubes 424 are installed in the sound-guiding cavity 421 at intervals, and each inverter tube 424 is provided with an inverter tube hole 425 therethrough, and each inverter tube The hole 425 is corresponding to one side sound hole 422.
  • the sound emitted by the sound-generating monomer 411 enters the sound-guiding front cavity 421, and the sound entering the sound-guiding front cavity 421 flows through the inverter tube holes 425 and diffuses out from the two side sound holes 422, respectively.
  • the pronunciation box 51 is embedded in the back of the first seat 20.
  • the back of the first seat 20 is provided with a cavity, and the pronunciation box 51 is embedded in the cavity.
  • the part where the sound guide 52 is disposed on the back of the first seat 20 is also embedded in the cavity of the back of the first seat 20.
  • This design method is provided by hiding the pronunciation box 51 and the sound guide on the back of the first seat 20. 52, can improve the visual effect of the car interior.
  • the sound box 51 is not limited to be embedded in the back of the first seat 20, for example, the sound box 51 and the sound guide 52 are provided outside the back of the first seat 20, and the sound box 51 is far away from the guide It is also possible that one side of the sound box 52 is in close contact with the back of the first seat 20, depending on actual needs.
  • the difference between the car provided in this embodiment and the car provided in Embodiment 3 is that the way of setting the sound guide box is different, which is specifically reflected in:
  • the third cover 623 of the sound guide box 62 is in A passive radiator is not provided at the side sound hole 622, but an inverter tube 624 is provided.
  • the setting method of the inverter tube 624 is the same as the setting method of the inverter tube 424 in the second embodiment, which will not be repeated here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

本发明提供了车载音箱以及汽车，其中，车载音箱包括用于安装于汽车座椅底部或者背部的发音箱的声音和用于将发音箱引导至座椅底部的导音箱，发音箱具有发声单体、耦合后腔和正发声孔，耦合后腔和正发声孔分别位于发声单体相背的两侧，导音箱具有与正发声孔连通的导音前腔和两个分别朝向座椅前方或者后方传播所述发音箱的声音的侧出声孔，两个侧出声孔都与导音前腔连通且分别位于导音前腔相背的两侧。本发明提供的车载音箱具有声音传播路径短，衰减小，在乘客产生相同声压级的情况下，需要输入的功率更小，利于节能减排，且一个车载音箱即可以同时覆盖第一座椅前方和后方的听音区域，可以减少车载音箱的使用数量，降低成本的优点。

Description

车载音箱以及汽车 【技术领域】
本发明涉及车载音箱领域，尤其涉及一种车载音箱以及一种采用该车载音箱的汽车。
【背景技术】
现在，汽车电子技术飞速发展，优秀的车载影音娱乐系统已经是为用户提供卓越的驾驶体验的不可或缺的部分。影响整车音质的关键因素之一，是车载低音效果的好坏，这一难点在车载音响系统的设计中一直存在。
现有车载低音的设计方案，一般采用大口径的圆形动圈式电声换能器，由于该类换能器具有一定的体积，安装受到限制，通常只能安装在车门、后备箱盖或后备箱内部。这种传统的车载低音设计方案，发声单体距离用户较远，低音在空气中传播的过程中有较多的损失，为保证车内每个位置均有足够的声压级，往往需要较大的输入功率，不利于减能减排；另外，为保证车内有较好的声场均匀度，一般需要在多个位置布置多个低音单元以补足车内声场，导致车内的扬声器数量较多，且安装的不一致性带来了车内音质的缺陷。
因此，有必要提供一种车载音箱来解决现有车载音箱需要较大的输入功率，不利于减能减排的问题。
【发明内容】
本发明的目的之一在于提供一种车载音箱，其可以起到节能减排、降低成本的优点。
本发明的目的之一采用如下技术方案实现：
一种车载音箱，包括用于安装于汽车座椅底部或者背部的发音箱和用于将所述发音箱的声音引导至所述座椅底部的导音箱，所述发音箱具有发声单体、耦合后腔和正发声孔，所述耦合后腔和正发声孔分别位于所述发 声单体相背的两侧，所述导音箱具有与所述正发声孔连通的导音前腔和两个分别朝向所述座椅前方和后方以传播所述发音箱的声音的侧出声孔，两个所述侧出声孔都与所述导音前腔连通且分别位于所述导音前腔相背的两侧。
作为一种改进方式，每个所述侧出声孔处设有无源辐射器或者倒相管。
作为一种改进方式，所述耦合后腔内部设有用于扩大所述耦合后腔的吸音材料。
作为一种改进方式，所述发音箱包括围成声腔的第一盖板和第二盖板，所述正发声孔设于所述第一盖板上，所述发声单体对应所述正发声孔所在的位置固定在所述第一盖板上，所述耦合后腔由所述第二盖板和所述发声单体围合形成。
作为一种改进方式，所述导音箱包括第三盖板，所述第三盖板固定于所述第一盖板之背对所述第二盖板的一侧，所述导音前腔由所述第二盖板与第三盖板围合形成，两个所述侧出声孔分别设于所述第三盖板相背的两侧。
作为一种改进方式，所述导音前腔与所述耦合后腔正相对设置；或者，
所述导音前腔包括与所述耦合后腔正相对并与所述正发声孔连通的第一导音腔和从所述第一导音腔一端弯折设置并与所述第一导音腔连通的第二导音腔，两个所述侧出声孔分别设置于所述第二导音腔的两相对侧。
本发明的目的之二还提供一种汽车，包括第一座椅，所述第一座椅上设有如上所述的车载音箱，两个所述侧出声孔都位于所述第一座椅的底部且分别朝向所述第一座椅的前下方和后下方倾斜设置。
作为一种改进方式，所述车载音箱安装于所述第一座椅的外侧，或者，所述发音箱嵌入安装于所述第一座椅内。
作为一种改进方式，所述发音箱和所述导音箱都位于所述第一座椅的底部；或者，
所述发音箱位于所述第一座椅的背部，所述导音箱从所述第一座椅的背部弯折延伸至所述第一座椅的底部。
作为一种改进方式，所述汽车还包括位于所述第一座椅下方的底盘，两个所述侧出声孔都朝向所述底盘倾斜设置；且/或，
所述汽车还包括位于所述第一座椅后侧的第二座椅，当所述第一座椅上有乘客时，远离所述第二座椅的所述侧出声孔位于所述第一座椅上乘客的视觉盲区内；当所述第二座椅上有乘客时，靠近所述第二座椅的所述侧出声孔位于所述第二座椅上乘客的视觉盲区内。
本实用新型实施方式相对于现有技术而言，通过设置车载音箱包括发音箱和导音箱，发音箱具有发声单体、耦合后腔和正发声孔，并通过设置导音箱具有与正发声孔连通的导音前腔和两个侧出声孔，并通过两个侧出声孔分别位于导音前腔相背的两侧以用于向前方和后方传播声音，这样，当导音箱安装于汽车座椅底部时，声音传播路径短，传播过程中的衰减小，在乘客产生相同声压级的情况下，车载音箱相比传统的设计方案，发声单体需要输入的功率更小，更利于节能减排；进一步地，通过将两个侧出声孔设置于导音前腔相背的两侧以用于分别朝向第一座椅前方或者后方传播声音，这样，一个车载音箱即可以同时覆盖第一座椅前方和后方的听音区域，可以减少车载音箱的使用数量，降低成本的同时节省能源。
【附图说明】
图1为本发明实施例一提供的第一座椅与车载音箱的剖面示意图；
图2为图1中A处局部放大示意图；
图3为本发明实施例一提供的车载音箱的爆炸示意图；
图4为本发明的实施例一提供的第一座椅和第二座椅的设置示意图；
图5为本发明的实施例二提供的第一座椅与车载音箱的剖面示意图；
图6为本发明的实施例二提供的车载音箱的爆炸示意图；
图7为本发明的实施例三提供的第一座椅与车载音箱的剖面示意图；
图8为图7中所示车载音箱的结构示意图；
图9为本发明的实施例四提供的第一座椅与车载音箱的剖面示意图。
【具体实施方式】
下面结合附图和实施方式对本发明作进一步说明。
实施例一：
请参阅图1-3，本发明的实施例一提供一种汽车，包括第一座椅20，第一座椅20的底部设置有车载音箱30，该车载音箱30包括发音箱31和导音箱32，发音箱31具有发声单体311、耦合后腔312和正发声孔313，耦合后腔312和正发声孔313分别位于发声单体311相背的两侧，导音箱32具有与正发声孔313连通的导音前腔321和两个分别朝向第一座椅20前方和后方以传播声音的侧出声孔322，两个侧出声孔322都与导音前腔321连通且分别位于导音前腔321相背的两侧。工作时，发声单体311振动将声音通过正发声孔313传递到导音前腔321中，再通过两个侧出声孔322分别传向第一座椅20的前方和后方的听音区域。
以该设计方式，通过将车载音箱30设置于第一座椅20的底部，该车载音箱30相对于第一座椅20，或者对于第一座椅20前排或者后排座位的乘客来说属于近场发声，声音传播路径短，传播过程中的衰减小，在乘客产生相同声压级的情况下，本发明实施例一所提供的车载音箱30相比传统的设计方案，发声单体311需要输入的功率更小，更利于节能减排；进一步地，通过将两个侧出声孔322设置于导音前腔321相背的两侧以用于分别朝向第一座椅20前方或者后方传播声音，这样，一个车载音箱30即可以同时覆盖第一座椅20前方和后方的听音区域，可以减少车载音箱30的使用数量，降低成本的同时节省能源。
作为本实施例的一种改进方式，侧出声孔322设置为细长孔结构，优选为长方形孔或者长腰型孔。
具体地，发音箱31包括围成声腔的第一盖板314和第二盖板315，正发声孔313设于第一盖板314上，发声单体311对应正发声孔313所在的位置固定在第一盖板314上，耦合后腔312由第二盖板315和发声单体311围合形成。以该设计方式，通过将发声单体311安装在第一盖板314上，也即发声单体311与第一座椅20分离设计，可以减小发声单体311振动时对第一座椅20，也即对汽车主体结构的影响。可以理解地，如果将发声单体311设置为与第一座椅20相接触，这样，发声单体311工作时产生的振 动会传递给第一座椅20，降低乘客乘坐第一座椅20的舒适度。
实际使用中，发音箱31可以安装在第一座椅20外侧，例如通过螺栓将第二盖板315与第一座椅20的底部固定连接；或者发音箱31也可以安装在第一座椅20内，例如在第一座椅20的底部设置空腔，将发音箱31嵌设于所述空腔中。
具体地，导音箱32包括第三盖板323，第三盖板323固定于第一盖板314之背对第二盖板315的一侧，导音前腔321由第二盖板315与第三盖板323围合形成，两个侧出声孔322分别设于第三盖板323相背的两侧。
作为本实施例的一种改进方式，导音前腔321与耦合后腔312正相对设置。耦合后腔312位于第一座椅20的底部，导音前腔321位于第一座椅20的正下方。
作为本实施例的一种改进方式，每个侧出声孔322处设有无源辐射器324。通过在侧出声孔322处设置无源辐射器324，无源辐射器324的振动在偏离谐振频率一定范围内不会迅速衰减，可以营造出下潜很深且富有弹性的声音，使得车载音箱30具有更好的低音表现。
作为本实施例的一种改进方式，耦合后腔312内部设有用于扩大耦合后腔的吸音材料。优选地，该吸音材料为活性炭颗粒或者吸音棉。通过设置该吸音材料，可以扩大耦合后腔312的等效体积，从而获得较好的低音效果。
作为本实施例的一种改进方式，该汽车还包括位于第一座椅20下方的底盘，两个侧出声孔322都朝向底盘倾斜设置。
请参阅图4，作为本实施例的一种改进方式，该汽车还包括位于第一座椅20后侧的第二座椅40，当第一座椅20上有乘客时，远离第二座椅40的侧出声孔322位于第一座椅20上乘客的视觉盲区内；当第二座椅40上有乘客时，靠近第二座椅40的侧出声孔322位于第二座椅40上乘客的视觉盲区S内。以该设计方式，通过将侧出声孔322设置于第二座椅40上乘客的视觉盲区S内，可以达到隐藏侧出声孔322的作用，提升车内用户的视觉体验。
需要说明的是，通过耦合后腔312、导音前腔321以及无源辐射器324的组合设计，可以实现在低频声压频段的带通滤波符合传递函数曲线，从而可有效的衰减低音单元的高频成分，将发声单体发出的声音控制在规定的带通低频范围内，从而获得较好的低音表现，具体地，该带通低频范围可以为20～200Hz，也可自行根据设计定义带通范围。
具体地，传递函数曲线公式如下：
Figure PCTCN2018125931-appb-000001
s＝j*2πf，
ω b＝2πf b，
Figure PCTCN2018125931-appb-000002
Figure PCTCN2018125931-appb-000003
Figure PCTCN2018125931-appb-000004
其中，f为频率，f b为耦合后腔的共振频率，f c为导声前腔的共振频率，C s为低音单元的等效声顺，C b为耦合后腔的等效声顺，C c为导声前腔的等效声顺，Q b为发音箱的品质因素以上的单位均是国际单位。通过以上声学设计，可将整个车载音箱的带通范围控制在20～200Hz。
实施例二：
请参阅图5-6，本实施例所提供的汽车与实施例一所提供的汽车不同的地方在于导音箱的结构不同，具体体现在：本实施例中，导音箱42的第三盖板423在侧出声孔422处不设置有无源辐射器，而设有倒相管424。本实施例中，在侧出声孔422处设置倒相管424也可以使得车载音箱40 具有更好的低音表现。
具体地，倒相管424设有两个，两个倒相管424间隔安装于导音前腔421内，每个倒相管424上贯穿开设有一个倒相管孔425，每个倒相管孔425与一个侧出声孔422对应设置。发声单体411发出的声音进入导音前腔421内，进入导音前腔421内的声音流经倒相管孔425后分别从两个侧出声孔422扩散出去。
实施例三：
请参阅图7-8，本实施例所提供的汽车与实施例一所提供的汽车不同的地方在于发音箱设置位置不同、导音箱的结构不同，具体体现在：本实施例中，发音箱51设置于第一座椅20的背部，导音前腔521包括与耦合后腔312正相对并与正发声孔513连通的第一导音腔521a和从第一导音腔521a一端弯折延伸至第一座椅20底部并与第一导音腔521a连通的第二导音腔521b，两个侧出声孔522分别设置于第二导音腔521b的两相对侧。
作为本实施例的一种改进方式，发音箱51嵌设在第一座椅20的背部，具体地，第一座椅20的背部设置空腔，发音箱51嵌设于所述空腔中。优选地，导音箱52设置于第一座椅20背部的部分也嵌设于第一座椅20背部的空腔中，该设计方式通过隐藏设置于第一座椅20背部发音箱51和导音箱52，可以提升汽车内饰的视觉效果。可以理解地，发音箱51不局限于设置为嵌设在第一座椅20的背部中，例如，发音箱51和导音箱52设置在第一座椅20背部的外侧，发音箱51之远离导音箱52的一侧与第一座椅20背部贴合设置也是可以的，具体根据实际需要而定。
实施例四：
请参阅图9，本实施例所提供的汽车与实施例三所提供的汽车不同的地方在于导音箱的设置方式不同，具体体现在：本实施例中，导音箱62的第三盖板623在侧出声孔622处不设置有无源辐射器，而设有倒相管624。倒相管624的设置方式与实施例二中倒相管424的设置方式一致，在此不做赘述。
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. 一种车载音箱，其特征在于，包括用于安装于汽车座椅底部或者背部的发音箱和用于将所述发音箱的声音引导至所述座椅底部的导音箱，所述发音箱具有发声单体、耦合后腔和正发声孔，所述耦合后腔和正发声孔分别位于所述发声单体相背的两侧，所述导音箱具有与所述正发声孔连通的导音前腔和两个分别朝向所述座椅前方和后方以传播所述发音箱的声音的侧出声孔，两个所述侧出声孔都与所述导音前腔连通且分别位于所述导音前腔相背的两侧。
  2. 根据权利要求1所述的车载音箱，其特征在于：每个所述侧出声孔处设有无源辐射器或者倒相管。
  3. 根据权利要求1所述的车载音箱，其特征在于：所述耦合后腔内部设有用于扩大所述耦合后腔的吸音材料。
  4. 根据权利要求1所述的车载音箱，其特征在于：所述发音箱包括围成声腔的第一盖板和第二盖板，所述正发声孔设于所述第一盖板上，所述发声单体对应所述正发声孔所在的位置固定在所述第一盖板上，所述耦合后腔由所述第二盖板和所述发声单体围合形成。
  5. 根据权利要求4所述的车载音箱，其特征在于：所述导音箱包括第三盖板，所述第三盖板固定于所述第一盖板之背对所述第二盖板的一侧，所述导音前腔由所述第二盖板与第三盖板围合形成，两个所述侧出声孔分别设于所述第三盖板相背的两侧。
  6. 根据权利要求1至5任一项所述的车载音箱，其特征在于：所述导音前腔与所述耦合后腔正相对设置；或者，
    所述导音前腔包括与所述耦合后腔正相对并与所述正发声孔连通的第一导音腔和从所述第一导音腔一端弯折设置并与所述第一导音腔连通的第二导音腔，两个所述侧出声孔分别设置于所述第二导音腔的两相对侧。
  7. 一种汽车，包括第一座椅，其特征在于，所述第一座椅上设有如权利要求1至6任一项所述的车载音箱，两个所述侧出声孔都位于所述第一 座椅的底部且分别朝向所述第一座椅的前下方和后下方倾斜设置。
  8. 根据权利要求7所述的汽车，其特征在于：所述车载音箱安装于所述第一座椅的外侧，或者，所述发音箱嵌入安装于所述第一座椅内。
  9. 根据权利要求8所述的汽车，其特征在于：所述发音箱和所述导音箱都位于所述第一座椅的底部；或者，
    所述发音箱位于所述第一座椅的背部，所述导音箱从所述第一座椅的背部弯折延伸至所述第一座椅的底部。
  10. 根据权利要求9所述的汽车，其特征在于：所述汽车还包括位于所述第一座椅下方的底盘，两个所述侧出声孔都朝向所述底盘倾斜设置；且/或，
    所述汽车还包括位于所述第一座椅后侧的第二座椅，当所述第一座椅上有乘客时，远离所述第二座椅的所述侧出声孔位于所述第一座椅上乘客的视觉盲区内；当所述第二座椅上有乘客时，靠近所述第二座椅的所述侧出声孔位于所述第二座椅上乘客的视觉盲区内。
PCT/CN2018/125931 2018-12-30 2018-12-30 车载音箱以及汽车 WO2020140166A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/125931 WO2020140166A1 (zh) 2018-12-30 2018-12-30 车载音箱以及汽车

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/125931 WO2020140166A1 (zh) 2018-12-30 2018-12-30 车载音箱以及汽车

Publications (1)

Publication Number Publication Date
WO2020140166A1 true WO2020140166A1 (zh) 2020-07-09

Family

ID=71406515

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/125931 WO2020140166A1 (zh) 2018-12-30 2018-12-30 车载音箱以及汽车

Country Status (1)

Country Link
WO (1) WO2020140166A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2383744A1 (en) * 2010-04-23 2011-11-02 Dongguan Superstring Electronics Co Ltd Flip-out multimedia car stereo
CN108271107A (zh) * 2018-01-08 2018-07-10 瑞声科技(新加坡)有限公司 扬声器箱
CN108366326A (zh) * 2018-01-30 2018-08-03 瑞声科技(新加坡)有限公司 扬声器箱

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2383744A1 (en) * 2010-04-23 2011-11-02 Dongguan Superstring Electronics Co Ltd Flip-out multimedia car stereo
CN108271107A (zh) * 2018-01-08 2018-07-10 瑞声科技(新加坡)有限公司 扬声器箱
CN108366326A (zh) * 2018-01-30 2018-08-03 瑞声科技(新加坡)有限公司 扬声器箱

Similar Documents

Publication Publication Date Title
US5193118A (en) Vehicular sound reproducing
US20050013459A1 (en) Door speaker apparatus and door panel
US11627394B2 (en) Loudspeaker assembly for providing audio external to a vehicle
CN109660912B (zh) 车载音箱以及汽车
EP4195692A1 (en) Vehicle-mounted woofer device and design method therefor
CN103313162B (zh) 一种双喇叭耳机
CN215204705U (zh) 一种车辆用扬声机构及车辆
CN104320601A (zh) 一种平板电视
US11197092B2 (en) In-vehicle independent sound field system and control system based on mini-speakers
WO2020140166A1 (zh) 车载音箱以及汽车
CN110958547B (zh) 具有多种操作模式和低音增强的扬声器
JP4561429B2 (ja) 吸気系発生音伝播構造
CN104113796B (zh) 被动辐射式音箱改良结构
CN110843831A (zh) 一种降噪分配箱、空调管路系统及空调
CN212435915U (zh) 一种车载低音扬声器装置
JPH0422296A (ja) 車載スピーカシステム
CN109862465B (zh) 车载音箱以及汽车
JPH03132295A (ja) 車載用スピーカ装置
CN117944546B (zh) 一种车载头枕
WO2020119586A1 (zh) 一种汽车门低音炮
WO2022007042A1 (zh) 汽车
JPH04223697A (ja) 車載用スピーカ装置
CN203289620U (zh) 一种双喇叭耳机
CN116389989A (zh) 一种车载发声装置和车辆
CN211720726U (zh) 一种无源辐射模组和电子设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18945388

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18945388

Country of ref document: EP

Kind code of ref document: A1