WO2020134457A1 - 发声装置及应用该发声装置的电子设备 - Google Patents

发声装置及应用该发声装置的电子设备 Download PDF

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Publication number
WO2020134457A1
WO2020134457A1 PCT/CN2019/113315 CN2019113315W WO2020134457A1 WO 2020134457 A1 WO2020134457 A1 WO 2020134457A1 CN 2019113315 W CN2019113315 W CN 2019113315W WO 2020134457 A1 WO2020134457 A1 WO 2020134457A1
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Prior art keywords
sound
sealing member
sound production
housing
hole
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Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/113315
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English (en)
French (fr)
Inventor
刘晓东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Technologies Pte Ltd
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AAC Acoustic Technologies Shenzhen Co Ltd
AAC Technologies Pte Ltd
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Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Technologies Pte Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2020134457A1 publication Critical patent/WO2020134457A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2846—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/01—Transducers used as a loudspeaker to generate sound aswell as a microphone to detect sound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the present invention relates to the technical field of electroacoustic devices, and in particular, to a sound emitting device and an electronic device using the same.
  • the present invention provides a sound-emitting device, the sound-emitting device includes a housing having a housing space, a sound-generating unit accommodated in the housing and a control device provided outside the housing, The sound-generating monomer divides the accommodating space into a front cavity and a rear cavity, a through hole is provided on the case corresponding to the rear cavity, and the control device includes a sealing member for sealing the through hole [0005] When the control device presses the sealing member against the housing and the through hole is sealed by the sealing member, the sound emitting device is in the first sound emitting mode;
  • control device further includes a transmission rod and a motor for controlling expansion and contraction of the transmission rod, and the sealing member is provided at an end of the transmission rod.
  • the sealing member is foam.
  • the present invention also provides an electronic device using the above sound-emitting device. Beneficial effects of invention
  • the beneficial effects of the present invention are:
  • the sound emitting device of the present invention has two sound emitting modes, wherein, when the control device presses the seal against the housing, the through hole is sealed by the seal When sealing, the sound-generating device is in the first sound-generating mode. At this time, the sound-generating unit only uses the rear cavity in the housing, and the Fo of the sound-generating unit is increased, which can provide higher product withstand voltage and better mid-high frequency effect.
  • FIG. 1 is an exploded schematic view of the three-dimensional structure of the sound-generating device of the present invention
  • FIG. 2 is a three-dimensional schematic diagram of the sound-generating device of the present invention.
  • FIG. 3 is a schematic cross-sectional structural view of the sound emitting device of the present invention in the first sound emitting mode
  • FIG. 4 is a schematic cross-sectional view of the sound emitting device of the present invention in the second sound emitting mode.
  • the present invention provides a sound emitting device, including a housing 1 having a housing space 10, a sound generating unit 2 housed in the housing 1, and a sound device disposed outside the housing 1 Control device 3.
  • the sound-generating monomer 2 divides the housing space 10 into a front cavity 101 and a rear cavity 102, and a through hole 11 is provided on the casing 1 at a position corresponding to the rear cavity 102.
  • the housing 1 includes an upper cover 1a and a lower cover 1b connected to the upper cover 1a, the sounding unit 2 and the upper cover 1a enclose a front cavity 101, the sounding unit 2 A rear cavity 102 is formed together with the lower cover 1b, and a through hole 11 is formed on the upper cover 1a.
  • the control device 3 includes a transmission rod 31, a motor 32 for controlling the expansion and contraction of the transmission rod 31, and a seal 33 provided at the end of the transmission rod 31.
  • the seal 33 is preferably foam.
  • the sounding device provided by the present invention has two sounding modes:
  • the control device 3 presses the sealing member 33 against the housing 1 (in this embodiment, the upper casing la), and the through hole 11 is sealed by the sealing member 33, the sound generating device is in the first sound emitting mode, and the specific operation may be It is the motor 32 that drives the transmission rod 31 to extend, and the transmission rod 31 presses the foam 33 at its end onto the housing 1, and the foam 33 compresses and seals the through-hole 11.
  • the sealing member 33 can also Silicone is used as long as it is a material that can seal the through-hole 11 by being pressed against the housing 1 by the transmission rod 31.
  • the control device 3 is not limited to the combination of the transmission rod 31 and the motor 32, as long as it is a mechanical structure that can drive the seal 33.
  • the control device 3 disengages the sealing member 33 from the housing 1, and the through hole 11 is not sealed by the sealing member 33, the sound emitting device is in the second sound emitting mode, and the specific operation may be that the motor 32 drives the transmission rod 31 to contract and drive The rod 31 disengages the seal 33 at the end thereof from the housing 1, and of course includes the case where the seal 33 is originally disengaged from the housing 1 as long as the through hole 11 is not sealed by the seal 33.
  • the sound emitting mode of the sound emitting device needs to be selected according to different sound emission of the electronic device.
  • the sound-generating device is in the first sound-generating mode.
  • the sound-generating unit 2 only uses the rear cavity 102 in the housing 1 and the F of the sound-generating unit 2.
  • the sound device is in In the second utterance mode, at this time, the rear cavity 102 in the housing 1 communicates with the internal cavity of the electronic device, and the internal cavity of the electronic device can be fully utilized to provide the audible monomer 2 with a larger rear cavity for utterance Monomer 2 F.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本发明提供了一种发声装置及应用该发声装置的电子设备，所述发声装置包括具有收容空间的壳体、收容于所述壳体内的发声单体及设置在所述壳体外的控制装置，所述发声单体将所述收容空间分隔成前腔和后腔，所述壳体上对应所述后腔的位置设有贯通孔，所述控制装置包括用来密封所述贯通孔的密封件，其中，当所述控制装置将所述密封件抵压于所述壳体，所述贯通孔被所述密封件密封时，所述发声装置处于第一发声模式；当所述控制装置将所述密封件脱离于所述壳体，所述贯通孔未被所述密封件密封时，所述发声装置处于第二发声模式。本发明的发声装置具有两种发声模式。

Description

发声装置及应用该发声装置的电子设备
技术领域
[0001] 本发明涉及电声器件技术领域， 特别地涉及一种发声装置及应用该发声装置的 电子设备。
背景技术
[0002] 随着立体声在手机等电子设备上的应用越来越多， 这就要求手机顶部的受话器 拥有扬声器的功能与手机底部的扬声器配合形成立体声， 但是， 受话器和扬声 器对腔体的要求是不同的,所以在设计上必然有取舍， 无法同时实现。
[0003] 因此， 有必要提供一种新的发声装置。
发明概述
技术问题
问题的解决方案
技术解决方案
[0004] 为了解决上述问题， 本发明提供了一种发声装置， 所述发声装置包括具有收容 空间的壳体、 收容于所述壳体内的发声单体及设置在所述壳体外的控制装置， 所述发声单体将所述收容空间分隔成前腔和后腔， 所述壳体上对应所述后腔的 位置设有贯通孔， 所述控制装置包括用来密封所述贯通孔的密封件， 其中， [0005] 当所述控制装置将所述密封件抵压于所述壳体， 所述贯通孔被所述密封件密封 时， 所述发声装置处于第一发声模式；
[0006] 当所述控制装置将所述密封件脱离于所述壳体， 所述贯通孔未被所述密封件密 封时， 所述发声装置处于第二发声模式。
[0007] 作为一种改进， 所述控制装置还包括传动杆以及用于控制所述传动杆伸缩的电 机， 所述密封件设置于所述传动杆的末端。
[0008] 作为一种改进， 所述密封件为泡棉。
[0009] 本发明还同时提供了一种应用上述发声装置的电子设备。 发明的有益效果
有益效果
[0010] 本发明的有益效果是： 本发明的发声装置具有两种发声模式， 其中， 当所述控 制装置将所述密封件抵压于所述壳体， 所述贯通孔被所述密封件密封时， 所述 发声装置处于第一发声模式， 此时， 发声单体只使用壳体内的后腔， 发声单体 的 F o提高， 可以提供更高的产品耐压， 更好的中高频效果， 最优化发声装置的 扬声器发声效果从而实现电子设备立体声功能， 同时可以避免在该发声模式下 存在的壳振问题； 当所述控制装置将所述密封件脱离于所述壳体， 所述贯通孔 未被所述密封件密封时， 所述发声装置处于第二发声模式， 此时， 壳体内的后 腔与电子设备的内部腔体连通， 可以充分利用电子设备的内部腔体， 提供给发 声单体一个更大的后腔， 发声单体的 F。降低， 提供较好的低频效果， 最优化发 声装置的受话器发声效果。
对附图的简要说明
附图说明
[0011] 图 1为本发明的发声装置的立体结构分解示意图；
[0012] 图 2为本发明的发声装置的立体结构示意图；
[0013] 图 3为本发明的发声装置处于第一发声模式下的剖面结构示意图；
[0014] 图 4为本发明的发声装置处于第二发声模式下的剖面结构示意图。
发明实施例
本发明的实施方式
[0015] 下面通过具体实施方式结合附图对本发明作进一步详细说明， 以便能够更好地 理解本发明的方案以及其各方面的优点。 另外， 提供以下具体实施方式的目的 是便于对本发明的内容更清楚透彻的理解， 而不是对本发明的限制。
[0016] 如图 1至图 4所示， 本发明提供了一种发声装置， 包括具有收容空间 10的壳体 1 、 收容于壳体 1内的发声单体 2及设置在壳体 1外的控制装置 3。
[0017] 发声单体 2将收容空间 10分隔成前腔 101和后腔 102， 壳体 1上对应后腔 102的位 置设有贯通孔 11。 [0018] 在本实施方式中， 壳体 1包括上盖 la和盖接于上盖 la的下盖 lb， 发声单体 2与上 盖 la围成前腔 101， 发声单体 2、 上盖 la和下盖 lb共同围成后腔 102， 贯通孔 11形 成于上盖 la上。
[0019] 控制装置 3包括传动杆 31、 用于控制传动杆 31伸缩的电机 32以及设置于传动杆 3 1末端的密封件 33， 密封件 33优选泡棉。
[0020] 本发明提供的发声装置具有两种发声模式：
[0021] 当控制装置 3将密封件 33抵压于壳体 1 （本实施方式中为上壳 la） ， 贯通孔 11被 密封件 33密封时， 发声装置处于第一发声模式， 具体的操作可以是电机 32带动 传动杆 31伸长， 传动杆 31将其末端的泡棉 33紧压到壳体 1上， 泡棉 33压缩密封贯 通孔 11， 当然， 密封件 33除选用泡棉外， 还可以选用硅胶， 实际上只要是被传 动杆 31抵压于壳体 1上可以起到密封贯通孔 11的材料均可。 另外， 控制装置 3不 局限于传动杆 31和电机 32的组合， 只要是可以带动密封件 33的机械结构均可。
[0022] 当控制装置 3将密封件 33脱离于壳体 1， 贯通孔 11未被密封件 33密封时， 发声装 置处于第二发声模式， 具体的操作可以是电机 32带动传动杆 31收缩， 传动杆 31 将其末端的密封件 33脱离于壳体 1， 当然也包括密封件 33原本就脱离于壳体 1的 情形， 只要是贯通孔 11未被密封件 33密封。
[0023] 本发明提供的发声装置在应用于电子设备 （例如手机、 平板电脑等应用到发声 装置的设备） 时， 根据电子设备不同的发声需要选择发声装置的发声模式。 发 声装置处于第一发声模式， 此时， 发声单体 2只使用壳体 1内的后腔 102, 发声单 体 2的 F。提高， 可以提供更高的产品耐压， 更好的中高频效果， 最优化发声装置 的扬声器发声效果从而实现电子设备立体声功能， 同时可以避免在该发声模式 下存在的壳振问题； 发声装置处于第二发声模式， 此时， 壳体 1内的后腔 102与 电子设备的内部腔体连通， 可以充分利用电子设备的内部腔体， 提供给发声单 体 2—个更大的后腔， 发声单体 2的 F。降低， 提供较好的低频效果， 最优化发声 装置的受话器发声效果。
[0024] 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， 可以做出各种更改和变化， 但这些均属于发明的保护范围。

Claims

权利要求书
[权利要求 1] 一种发声装置， 其特征在于， 所述发声装置包括具有收容空间的壳体 、 收容于所述壳体内的发声单体及设置在所述壳体外的控制装置， 所 述发声单体将所述收容空间分隔成前腔和后腔， 所述壳体上对应所述 后腔的位置设有贯通孔， 所述控制装置包括用来密封所述贯通孔的密 封件， 其中，
当所述控制装置将所述密封件抵压于所述壳体， 所述贯通孔被所述密 封件密封时， 所述发声装置处于第一发声模式； 当所述控制装置将所述密封件脱离于所述壳体， 所述贯通孔未被所述 密封件密封时， 所述发声装置处于第二发声模式。
[权利要求 2] 根据权利要求 1所述的发声装置， 其特征在于， 所述控制装置还包括 传动杆以及用于控制所述传动杆伸缩的电机， 所述密封件设置于所述 传动杆的末端。
[权利要求 3] 根据权利要求 1所述的发声装置， 其特征在于， 所述密封件为泡棉。
[权利要求 4] 一种电子设备， 其特征在于， 所述电子设备包括如权利要求 1至 3中任 意一项所述的发声装置。
PCT/CN2019/113315 2018-12-25 2019-10-25 发声装置及应用该发声装置的电子设备 Ceased WO2020134457A1 (zh)

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CN109951772A (zh) * 2018-12-25 2019-06-28 瑞声科技(新加坡)有限公司 发声装置及应用该发声装置的电子设备
CN111065010B (zh) * 2019-12-27 2021-06-22 Oppo广东移动通信有限公司 扬声器模组以及终端
CN118660260B (zh) * 2024-08-20 2024-11-19 瑞声光电科技(常州)有限公司 电子终端

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