WO2016141740A1 - 一种发音装置中吸音颗粒的防护装置 - Google Patents

一种发音装置中吸音颗粒的防护装置 Download PDF

Info

Publication number
WO2016141740A1
WO2016141740A1 PCT/CN2015/096752 CN2015096752W WO2016141740A1 WO 2016141740 A1 WO2016141740 A1 WO 2016141740A1 CN 2015096752 W CN2015096752 W CN 2015096752W WO 2016141740 A1 WO2016141740 A1 WO 2016141740A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
absorbing particles
passage
casing
acoustic cavity
Prior art date
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/CN2015/096752
Other languages
English (en)
French (fr)
Inventor
李振军
陈钢
杨赟
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.)
Goertek Inc
Original Assignee
Goertek Inc
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 Goertek Inc filed Critical Goertek Inc
Priority to US15/540,180 priority Critical patent/US10433037B2/en
Publication of WO2016141740A1 publication Critical patent/WO2016141740A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • 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
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
    • H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities

Definitions

  • the utility model relates to the field of pronunciation devices, and more particularly to a protection device for sound absorbing particles in a sounding device.
  • the pronunciation device is an important component in electronic products, including a rear acoustic cavity surrounded by a casing, and is disposed in the rear acoustic cavity.
  • a speaker unit in which a passage for air to flow out is provided on the housing.
  • the sound absorbing particles are filled in the rear sound cavity.
  • the attendant problem is that the sound absorbing particles are very small, often blocking the sound channel or flowing from the sound channel to the outside of the sounding device, thereby damaging the quality of the product. Therefore, it is necessary to provide a protective device for sound absorbing particles.
  • a protection device for sound absorbing particles in a sounding device includes a housing and a rear sound chamber formed in the housing, the rear sound chamber being filled with sound absorbing particles; and the housing is provided with After connecting the sound chamber and the external sound circulation passage, the entrance of the sound circulation passage is covered with a sound-transmitting layer for preventing the sound-absorbing particles from being exposed.
  • the inner wall of the casing is provided with a concave sinking groove for accommodating the sound permeable layer, and the sound circulation passage communicates with the sinking groove.
  • the sound circulation passage includes a first passage penetrating the side wall of the casing, and a second passage communicating the first passage and the sinking groove.
  • the plate being located on the sound-permeable layer
  • the position of the square is provided with a through hole.
  • the second passage is surrounded by a groove of the inner wall of the casing and a plate.
  • the sheet and the sound permeable layer are fixed by bonding.
  • the sheet material is a PET sheet.
  • the sound permeable layer is a foam or a nonwoven fabric.
  • a sound-transmitting layer is arranged at the entrance of the sound circulation passage, that is, the sound-transmitting layer separates the sound circulation passage and the rear sound chamber, so that the airflow in the rear sound chamber passes through the sound transmission first.
  • the layer then flows out of the sound circulation channel.
  • the arrangement of the sound-transmitting layer can hinder the sound absorbing particles, prevent the sound absorbing particles from entering the sound circulation channel, and does not affect the airflow.
  • Figure 1 is an exploded view of the guard of the present invention.
  • Figure 2 is a partial cross-sectional view of the guard of Figure 1.
  • Figure 3 is a partial enlarged view of the sound flow passage of Figure 1.
  • the present invention provides a shielding device for sound absorbing particles in a sounding device, which comprises a housing 1 and a sounding unit 7 located in the housing 1, wherein the sounding unit 7 will be a housing
  • the inner cavity of 1 is divided into a front sound chamber and a rear sound chamber.
  • the casing 1 may be formed by fastening the upper casing and the lower casing together, and if necessary, a middle casing may be provided.
  • a sound circulation passage 5 is further disposed on the casing 1, and the sound circulation passage 5 communicates with the sound chamber and the outside to allow airflow to flow from the rear sound chamber to the outside.
  • the rear acoustic cavity is filled with sound absorbing particles 4 to improve the sounding performance of the sounding device; a sound transmitting layer 3 is covered at the entrance of the sound flow path 5.
  • the sound permeable layer is made of a gas permeable material such as foam, nonwoven fabric or the like.
  • the guard device of the present invention is provided with a sound-transmitting layer at the entrance of the sound circulation passage, and the sound-transmitting layer separates the sound circulation passage and the rear sound chamber, so that the airflow in the rear sound chamber passes through the sound-transmitting layer first, and then from the sound circulation passage.
  • the medium-outflow, the setting of the sound-transmitting layer can hinder the sound-absorbing particles, prevent the sound-absorbing particles from entering the sound circulation passage, and does not affect the airflow.
  • the sheet 2 is fixed above the sound-permeable layer 3, which may be, for example, a PET sheet.
  • a through hole 20 is provided in the plate 2 at a position above the sound permeable layer 3.
  • the sound-transmitting layer 3 covers the entrance of the sound flow passage 5 through the sheet 2, and the sound-transmitting layer 3 can be well fixed.
  • the sheet material 2 and the sound permeable layer 3 can be fixed by bonding.
  • a through hole 20 is formed in the plate 2 at a position directly above the sound permeable layer 3, and the airflow caused by the speaker unit enters the sound circulation passage 5 through the through hole 20 and the sound permeable layer 3.
  • the inner wall of the housing 1 is provided with a recessed recess 6 for receiving the sound-permeable layer 3, wherein the sound flow passage 5 communicates with the sink 6.
  • the sheet 2 encloses the foam in the sinking groove 6.
  • the sheet 2 and the sound-transmitting layer 3 may first be fixed together by, for example, bonding, and the integrated design of the sheet 2 and the sound-transmitting layer is advantageous. Assembly of the production line.
  • the shape of the sound circulation passage 5 can be a structure well known to those skilled in the art.
  • the sound circulation passage 5 includes a first passage 50 penetrating the side wall of the casing, and is connected to the first The passage 50 and the second passage 51 of the sinker 6.
  • the first passage 50 can vertically penetrate the bottom wall of the casing 1, and the second passage 51 is approximately horizontal to connect the first passage 50 and the sinking groove 6.
  • the second passage 51 may be a groove formed on the inner wall of the casing and communicating with the first passage 50 and the sinking groove 6. When assembled, the groove is covered by the plate 2, and is surrounded by the groove and the plate 2.
  • the second channel 51 is a groove formed on the inner wall of the casing and communicating with the first passage 50 and the sinking groove 6.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

一种发音装置中吸音颗粒（4）的防护装置，包括壳体（1）以及形成在壳体（1）内的后声腔，所述后声腔中填充有吸音颗粒（4）；在所述壳体（1）上设置有连通后声腔及外界的声音流通通道（5），该声音流通通道（5）的入口处覆盖有一层用于防止吸音颗粒（4）外露的透音层（3）。该防护装置的透音层（3）将声音流通通道（5）和后声腔隔开，使得后声腔中的气流先经过透音层（3），再从声音流通通道（5）中流出。该透音层（3）的设置，可以对吸音颗粒（4）起到阻碍的作用，防止吸音颗粒（4）进入到声音流通通道（5）中去，而且也不会影响到空气气流的传出。解决了现有技术中吸音颗粒（4）容易外露或堵塞声音流通通道（5）的问题，保证了发音装置的品质。

Description

一种发音装置中吸音颗粒的防护装置 技术领域
本实用新型涉及发音装置领域，更具体地，本实用新型涉及一种发音装置中吸音颗粒的防护装置。
背景技术
随着科技的发展，人们对电子产品性能的要求也越来越高，而发音装置是电子产品中的一个重要的组成单元，其包括由壳体围成的后声腔，以及设置在后声腔中的扬声器单体，其中在壳体上设置有供空气流出的通道。现有技术中，人们为了提高发音装置的发音性能，会在后声腔中填充吸音颗粒。但是随之而来的问题是，该吸音颗粒非常小，经常会阻塞声音通道或者从声音通道中流到发音装置的外部，从而破坏产品的品质。因此，有必要提供一种吸音颗粒的防护装置。
实用新型内容
本实用新型的一个目的是提供了一种发音装置中吸音颗粒的防护装置。
根据本实用新型的一个方面，提供一种发音装置中吸音颗粒的防护装置，包括壳体以及形成在壳体内的后声腔，所述后声腔中填充有吸音颗粒；在所述壳体上设置有连通后声腔及外界的声音流通通道，该声音流通通道的入口处覆盖有一层用于防止吸音颗粒外露的透音层。
优选地，所述壳体的内壁上设置有内凹的用于容纳透音层的沉槽，所述声音流通通道连通该沉槽。
优选地，所述声音流通通道包括贯通壳体侧壁的第一通道，以及连通第一通道与沉槽的第二通道。
优选地，还包括固定在透音层上方的板材，所述板材上位于透音层上 方的位置设置有通孔。
优选地，所述第二通道由壳体内壁的凹槽、板材围成。
优选地，所述板材和透音层通过粘结的方式固定。
优选地，所述板材为PET板。
优选地，所述透音层为泡棉或无纺布。
本实用新型的一个技术效果在于，在声音流通通道的入口处设置一层透音层，也就是说，透音层将声音流通通道和后声腔隔开，使得后声腔中的气流先经过透音层，再从声音流通通道中流出。该透音层的设置，可以对吸音颗粒起到阻碍的作用，防止吸音颗粒进入到声音流通通道中去，而且也不会影响到气流的传出。
通过以下参照附图对本实用新型的示例性实施例的详细描述，本实用新型的其它特征及其优点将会变得清楚。
附图说明
构成说明书的一部分的附图描述了本实用新型的实施例，并且连同说明书一起用于解释本实用新型的原理。
图1是本实用新型防护装置的爆炸图。
图2是图1中防护装置的局部剖面图。
图3是图1中声音流通通道处的局部放大图。
其中，各视图中的标号如下：
1-壳体；2-板材；3-透音层；4-吸音颗粒；5-声音流通通道；6-沉槽；7-发声单体；20-通孔；50-第一通道；51-第二通道。
具体实施方式
现在将参照附图来详细描述本实用新型的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本实用新型的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本实用新型及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术和设备可能不作详细讨论，但在适当情况下，所述技术和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
参考图1、图2，本实用新型提供了一种发音装置中吸音颗粒的防护装置，其包括壳体1，以及位于壳体1内的发声单体7，其中，发声单体7将壳体1的内腔分成前声腔和后声腔。该壳体1可以由上壳、下壳扣合在一起构成，如果必要，还可以设置中壳。当然，在所述壳体1上还设置有声音流通通道5，该声音流通通道5连通后声腔和外界，以便气流从后声腔流出外界。所述后声腔中填充有吸音颗粒4，以提高发音装置的发声性能；在该声音流通通道5的入口处覆盖有一层透音层3。该透音层是由气流可透过的材料制成，例如泡棉、无纺布等。
本实用新型的防护装置，在声音流通通道的入口处设置一透音层，透音层将声音流通通道和后声腔隔开，使得后声腔中的气流先经过透音层，再从声音流通通道中流出，该透音层的设置，可以对吸音颗粒起到阻碍的作用，防止吸音颗粒进入到声音流通通道中去，而且也不会影响到气流的传出。
在本实用新型一个具体的实施例中，还包括固定在透音层3上方的板材2，该板材2例如可以是PET板。所述板材2上位于透音层3上方的位置设置有通孔20。透音层3通过板材2覆盖住声音流通通道5的入口，可以很好地固定透音层3。优选的是，所述板材2和透音层3可以通过粘结的方式固定。在所述板材2上位于透音层3正上方的位置设置有通孔20，扬声器单体所引起的气流经过通孔20、透音层3进入到声音流通通道5中。
进一步优选的是，所述壳体1的内壁上设置有内凹的沉槽6，用于容纳透音层3，其中，所述声音流通通道5连通该沉槽6。装配的时候，通过 板材2将泡棉封装在沉槽6中，当然，也可以首先将板材2和透音层3以例如粘结的方式固定在一起，板材2与透音层的这种一体化设计，有利于产线的组装。
声音流通通道5的形状可以采用本领域技术人员所熟知的结构，在本实用新型一个优选的实施方式中，所述声音流通通道5包括贯通壳体侧壁的第一通道50，以及连通第一通道50与沉槽6的第二通道51。以图3的视图方向为准，例如第一通道50可以竖直地贯通壳体1的底壁，第二通道51近似水平，将第一通道50和沉槽6连通起来。该第二通道51可以是在壳体内壁上形成的连通第一通道50和沉槽6的凹槽，在装配的时候，该凹槽被板材2遮盖住，由凹槽和板材2共同围成第二通道51。
虽然已经通过示例对本实用新型的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上示例仅是为了进行说明，而不是为了限制本实用新型的范围。本领域的技术人员应该理解，可在不脱离本实用新型的范围和精神的情况下，对以上实施例进行修改。本实用新型的范围由所附权利要求来限定。

Claims (8)

  1. 一种发音装置中吸音颗粒的防护装置，其特征在于：包括壳体(1)以及形成在壳体(1)内的后声腔，所述后声腔中填充有吸音颗粒(4)；在所述壳体(1)上设置有连通后声腔及外界的声音流通通道(5)，该声音流通通道(5)的入口处覆盖有一层用于防止吸音颗粒(4)外露的透音层(3)。
  2. 根据权利要求1所述的防护装置，其特征在于：所述壳体(1)的内壁上设置有内凹的用于容纳透音层(3)的沉槽(6)，所述声音流通通道(5)连通该沉槽(6)。
  3. 根据权利要求2所述的防护装置，其特征在于：所述声音流通通道(5)包括贯通壳体(1)侧壁的第一通道(50)，以及连通第一通道(50)与沉槽(6)的第二通道(51)。
  4. 根据权利要求1所述的防护装置，其特征在于：还包括固定在透音层(3)上方的板材(2)，所述板材(2)上位于透音层(3)上方的位置设置有通孔(20)。
  5. 根据权利要求4所述的防护装置，其特征在于：所述第二通道(51)由壳体(1)内壁的凹槽、板材(2)围成。
  6. 根据权利要求4所述的防护装置，其特征在于：所述板材(2)和透音层(3)通过粘结的方式固定。
  7. 根据权利要求4所述的防护装置，其特征在于：所述板材(2)为PET板。
  8. 根据权利要求1所述的防护装置，其特征在于：所述透音层(3)为泡棉或无纺布。
PCT/CN2015/096752 2015-03-06 2015-12-09 一种发音装置中吸音颗粒的防护装置 Ceased WO2016141740A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/540,180 US10433037B2 (en) 2015-03-06 2015-12-09 Protective apparatus for sound-absorbing particles in sounding apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201520132827.8 2015-03-06
CN201520132827.8U CN204408577U (zh) 2015-03-06 2015-03-06 一种发音装置中吸音颗粒的防护装置

Publications (1)

Publication Number Publication Date
WO2016141740A1 true WO2016141740A1 (zh) 2016-09-15

Family

ID=53432405

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/096752 Ceased WO2016141740A1 (zh) 2015-03-06 2015-12-09 一种发音装置中吸音颗粒的防护装置

Country Status (3)

Country Link
US (1) US10433037B2 (zh)
CN (1) CN204408577U (zh)
WO (1) WO2016141740A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021052308A1 (zh) * 2019-09-18 2021-03-25 华为技术有限公司 移动终端

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204408577U (zh) * 2015-03-06 2015-06-17 歌尔声学股份有限公司 一种发音装置中吸音颗粒的防护装置
US9615165B2 (en) * 2015-08-07 2017-04-04 Sound Solutions International Co., Ltd. Loudspeaker device having foam insert to improve gas distribution in sound adsorber material
JP2018033084A (ja) * 2016-08-26 2018-03-01 京セラ株式会社 電子機器
CN107948885B (zh) * 2017-11-22 2020-10-23 瑞声科技(新加坡)有限公司 扬声器
CN109218895B (zh) * 2018-08-02 2020-06-16 瑞声科技(新加坡)有限公司 扬声器箱
CN208638646U (zh) * 2018-08-02 2019-03-22 瑞声科技(新加坡)有限公司 扬声器
CN208638564U (zh) * 2018-08-02 2019-03-22 瑞声科技(新加坡)有限公司 扬声器箱
CN108882126B (zh) * 2018-08-02 2020-07-14 瑞声科技(新加坡)有限公司 扬声器箱
CN110195889B (zh) * 2019-06-27 2024-05-03 勃格科技有限公司 一种防尘电壁炉及使用方法
CN110708642B (zh) * 2019-09-28 2022-07-12 歌尔科技有限公司 声学装置及电子设备
CN211744722U (zh) * 2020-03-04 2020-10-23 瑞声科技(新加坡)有限公司 扬声器箱
KR102896389B1 (ko) * 2021-06-07 2025-12-05 삼성전자 주식회사 스피커 모듈 및 이를 포함하는 전자 장치
EP4304203A4 (en) * 2021-06-07 2024-10-02 Samsung Electronics Co., Ltd. Speaker module and electronic device comprising same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657108A (en) * 1983-03-02 1987-04-14 Ward Brian D Constant pressure device
CN102724606A (zh) * 2012-06-04 2012-10-10 瑞声声学科技(深圳)有限公司 发声器件
CN104038855A (zh) * 2014-06-04 2014-09-10 瑞声光电科技(常州)有限公司 电声器件及所述电声器件的组装方法
CN104202703A (zh) * 2014-09-01 2014-12-10 歌尔声学股份有限公司 扬声器模组
CN204408577U (zh) * 2015-03-06 2015-06-17 歌尔声学股份有限公司 一种发音装置中吸音颗粒的防护装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1786235B1 (en) * 2004-08-23 2018-06-13 Panasonic Intellectual Property Management Co., Ltd. Loudspeaker system
WO2006098158A1 (ja) * 2005-03-17 2006-09-21 Matsushita Electric Industrial Co., Ltd. スピーカ装置
JP5198959B2 (ja) * 2007-07-27 2013-05-15 パナソニック株式会社 スピーカ装置
EP2495991A1 (en) * 2011-03-04 2012-09-05 Knowles Electronics Asia PTE. Ltd. Packaging of acoustic volume increasing materials for loudspeaker devices
US8965025B2 (en) * 2012-05-17 2015-02-24 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Micro-speaker box
US9247341B2 (en) * 2014-02-26 2016-01-26 Htc Corporation Speaker module

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657108A (en) * 1983-03-02 1987-04-14 Ward Brian D Constant pressure device
CN102724606A (zh) * 2012-06-04 2012-10-10 瑞声声学科技(深圳)有限公司 发声器件
CN104038855A (zh) * 2014-06-04 2014-09-10 瑞声光电科技(常州)有限公司 电声器件及所述电声器件的组装方法
CN104202703A (zh) * 2014-09-01 2014-12-10 歌尔声学股份有限公司 扬声器模组
CN204408577U (zh) * 2015-03-06 2015-06-17 歌尔声学股份有限公司 一种发音装置中吸音颗粒的防护装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021052308A1 (zh) * 2019-09-18 2021-03-25 华为技术有限公司 移动终端
US12200157B2 (en) 2019-09-18 2025-01-14 Huawei Technologies Co., Ltd. Mobile terminal

Also Published As

Publication number Publication date
US20180020273A1 (en) 2018-01-18
CN204408577U (zh) 2015-06-17
US10433037B2 (en) 2019-10-01

Similar Documents

Publication Publication Date Title
WO2016141740A1 (zh) 一种发音装置中吸音颗粒的防护装置
CN204906708U (zh) 一种扬声器模组
US10484766B2 (en) Speaker module
US11202134B2 (en) Speaker module
US9084053B2 (en) Microphone environmental protection device
JP2015073323A5 (ja) 電子オーディオ装置
CN106444975B (zh) 具有复合声学膜片的设备
WO2013128675A1 (ja) 携帯端末機器における音声誘導装置及び音声誘導部材
US9636259B2 (en) Water resistant acoustic port in ear-mouthed hearing device
CN106664468A (zh) 车辆用发声器
CN106162425A (zh) 扬声器箱
JP5793686B2 (ja) 煙感知器
WO2018218766A1 (zh) 扬声器模组以及电子设备
US9693148B1 (en) Acoustic hailing device
CN204929255U (zh) 麦克风封装
US9589429B2 (en) Alarm detector
CN206136253U (zh) 防水型发声装置以及耳机
CN205510384U (zh) 扬声器模组
JP6540498B2 (ja) 電子機器
KR101513905B1 (ko) 측면 방사 구조를 가지는 마이크로스피커
CN205829979U (zh) 气流导向音响
WO2019105136A1 (zh) 一种电子设备
TWI491337B (zh) 複合孔結構
WO2021109176A1 (zh) 一种扬声器箱及终端设备
CN105916076B (zh) 气流导向音响

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: 15884418

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 15540180

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 12/02/2018)

122 Ep: pct application non-entry in european phase

Ref document number: 15884418

Country of ref document: EP

Kind code of ref document: A1