WO2020140548A1 - 发声器件及电子设备 - Google Patents

发声器件及电子设备 Download PDF

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Publication number
WO2020140548A1
WO2020140548A1 PCT/CN2019/110855 CN2019110855W WO2020140548A1 WO 2020140548 A1 WO2020140548 A1 WO 2020140548A1 CN 2019110855 W CN2019110855 W CN 2019110855W WO 2020140548 A1 WO2020140548 A1 WO 2020140548A1
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WO
WIPO (PCT)
Prior art keywords
sound
housing
acoustic cavity
cavity
emitting device
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/CN2019/110855
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English (en)
French (fr)
Inventor
张哲�
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
Original Assignee
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 WO2020140548A1 publication Critical patent/WO2020140548A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • H04R1/2873—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself for loudspeaker transducers
    • 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
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers
    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
    • 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
    • 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
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

Definitions

  • the utility model relates to the technical field of electroacoustic conversion, in particular to a sound emitting device and electronic equipment.
  • the purpose of the utility model is to provide a sound-generating device and an electronic device, which can effectively use the idle gap space in the electronic device to improve the low-frequency performance of the sound-generating device and the electronic device.
  • a sound-generating device includes a first housing with a receiving space and a speaker unit accommodated in the receiving space and provided with a vibrating membrane for vibrating and sounding.
  • the receiving space is divided into a front acoustic cavity and a rear acoustic cavity, the front acoustic cavity is formed between the diaphragm and the first casing facing the diaphragm, and the sound-emitting device further includes A second housing spaced apart and a connecting piece connecting the second housing and the first housing, the second housing has an auxiliary acoustic cavity, and the connecting piece communicates the auxiliary acoustic cavity and the Rear acoustic cavity.
  • the number of the second housing is multiple.
  • the number of the connecting member is one or more.
  • the first housing includes a main body having an opening and a cover plate covering the opening and enclosing the main body to form the receiving space
  • the main body includes a bottom plate directly opposite to the diaphragm and The edge of the bottom plate extends toward the cover plate and is connected to the side wall of the cover plate
  • the main body further includes a blocking wall extending from the bottom plate into the receiving space, the blocking wall connects the rear acoustic cavity It is divided into a first rear acoustic cavity and a second rear acoustic cavity corresponding to the speaker unit.
  • the first rear acoustic cavity is encapsulated with sound absorbing material, and one end of the connecting member communicates with the second rear acoustic cavity.
  • the connecting member The other end of is connected to the auxiliary acoustic cavity.
  • the connecting member is a hollow tubular structure with open ends, and the side wall is provided with a mounting portion corresponding to the connecting member, and an end of the connecting member near the first housing is fixed to the mounting portion .
  • the mounting portion is a mounting hole penetrating the side wall or a mounting notch formed by recessing from the edge of the side wall toward the bottom plate.
  • the second housing is provided with a through hole corresponding to the connecting member, and an end of the connecting member near the second housing is fixed in the through hole and extends to the auxiliary sound cavity through the through hole .
  • the side wall forms a sound guide channel that connects the front sound cavity with the outside world, and the sound guide channel is disposed opposite to an end of the connecting member close to the first housing.
  • the first housing is provided with a filling hole corresponding to the first rear sound cavity, the sound absorbing material is sound absorbing powder material, and the sound absorbing material is loaded into the first rear sound cavity through the filling hole .
  • the first housing has a leakage hole corresponding to the second rear acoustic cavity.
  • the utility model also provides an electronic device.
  • the electronic device includes the sound-generating device.
  • the utility model has the following beneficial effects: the sound-generating device improves the low-frequency performance of the generating device by providing a second casing with an auxiliary sound cavity; the electronic equipment applying the sound-generating device can use the internal idle space as an auxiliary Acoustic cavity, thereby improving the low frequency performance of electronic equipment.
  • FIG. 1 is a perspective structural view of a sound-generating device of the utility model
  • FIG. 2 is a perspective exploded view of the sound-generating device of the present invention
  • FIG. 3 is a cross-sectional view of the sound-generating device of the present invention.
  • FIG. 4 is a schematic diagram of the structure of the electronic device of the utility model.
  • the present invention provides a sound-generating device 100 including a first housing 1 with a receiving space 11 and a diaphragm 21 that is housed in the receiving space 11 and is provided with a vibration-producing sound A speaker unit 2, a second housing 3 spaced apart from the first housing 1 and having an auxiliary sound cavity 31, and a connector 4 connecting the second housing 1 and the first housing 1.
  • the diaphragm 21 divides the accommodating space 11 into a front acoustic cavity 111 and a rear acoustic cavity 112, and the diaphragm 21 is spaced from the first housing 1 facing the diaphragm 21 to form the front acoustic cavity 111.
  • the connecting member 4 communicates the auxiliary acoustic cavity 31 and the rear acoustic cavity 112.
  • the first housing 1 includes a main body 12 having an opening 120 and a cover plate 13 covering the opening 120 and surrounding the main body 12 to form the receiving space 11.
  • the main body 12 includes a bottom plate 121 directly opposite to the diaphragm 21 and a side wall 122 extending from an edge of the bottom plate 121 toward the cover plate 13 and connected to the cover plate 13.
  • the side wall 122 is away from the bottom plate Surrounding the opening 120, the main body 12 further includes a blocking wall 123 extending from the bottom plate 121 into the receiving space 11, the blocking wall 123 divides the rear acoustic cavity 112 into a first rear acoustic cavity 1121 and A second rear acoustic cavity 1122 corresponding to the speaker unit 2 is enclosed with a sound absorbing material 1120 in the first rear acoustic cavity 1121, one end of the connecting member 4 communicates with the second rear acoustic cavity 1122, and the connecting member 4 The other end of is connected to the auxiliary acoustic cavity 31.
  • the side wall 122 forms a sound guide channel 1221 that connects the front sound cavity 111 and the outside world.
  • the sound guide channel 1221 is disposed opposite to the end of the connecting member 3 close to the first housing 1.
  • the first housing 1 defines a filling hole 14 corresponding to the first rear acoustic cavity 1121, the sound absorbing material 1120 is a sound absorbing powder material, and the sound absorbing material 1120 is loaded into the first through the filling hole 14 Inside the rear acoustic cavity 1121.
  • the first housing 1 defines a leakage hole 15 corresponding to the second rear acoustic cavity 1122.
  • the number of the second housing 3 is one or more.
  • the second housing 3 is provided with a through hole 32 corresponding to the connecting member 4.
  • the connecting member 4 is fixed at one end close to the second housing 3
  • the through hole 32 extends through the through hole 32 to the auxiliary acoustic cavity 31.
  • the number of the connecting member 4 is one or more.
  • the connecting member 4 is a hollow tubular structure with two ends open.
  • the side wall 122 is provided with a mounting portion 1221 corresponding to the connecting member 4.
  • the connecting member 4 An end close to the first housing 1 is fixed to the mounting portion 1222.
  • the mounting portion 1222 is a mounting hole penetrating the side wall 122 or a mounting notch formed by recessing from the edge of the side wall 122 toward the bottom plate 121.
  • the present invention also provides an electronic device 200, the electronic device includes the sound-emitting device 100.
  • the utility model has the following beneficial effects: the sound-generating device improves the low-frequency performance of the generating device by providing a second casing with an auxiliary sound cavity; the electronic equipment applying the sound-generating device can use the internal idle space as an auxiliary Acoustic cavity, thereby improving the low frequency performance of electronic equipment.

Landscapes

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

Abstract

本实用新型提供了一种发声器件，包括具有收容空间的第一壳体和收容于所述收容空间内并设有用于振动发声的振膜的扬声器单体，所述振膜将所述收容空间分隔成前声腔和后声腔，所述振膜与正对所述振膜的所述第一壳体之间间隔形成所述前声腔，所述发声器件还包括与所述第一壳体间隔设置的第二壳体、以及连通所述第二壳体与所述第一壳体的连接件，所述第二壳体具有辅助声腔，所述连接件连通所述辅助声腔与所述后声腔。与相关技术相比，本实用新型具有如下有益效果：发声器件通过设置具有辅助声腔的第二壳体，改善了发生器件的低频性能；应用该发声器件的电子设备可以利用内部闲置的空间作为辅助声腔，从而改善了电子设备的低频性能。

Description

发声器件及电子设备 技术领域
本实用新型涉及电声转换技术领域，尤其涉及一种发声器件及电子设备。
 背景技术
在移动设备（如手机、平板电脑或手提电脑）的快速发展过程中，人 们对产品的功能要求越来越高，为了使娱乐效果更突出，因此扬声器也越 来越多的使用扬声器结合BOX的结构形成电子设备，以获得更好的低频体验。
 技术问题
在相关技术中，电子设备，例如手机，内部存在各种零部件堆叠的间隙空间，这些间隙空间被闲置，没有得到利用。
 因此，有必要提供一种新型的发声器件及电子设备以解决上述问题。
 技术解决方案
本实用新型的目的在于提供一种发声器件及电子设备，其可以有效利用电子设备内闲置的间隙空间，以用来改善发声器件及电子设备的低频性能。
本实用新型的技术方案如下：一种发声器件，包括具有收容空间的第一壳体和收容于所述收容空间内并设有用于振动发声的振膜的扬声器单体，所述振膜将所述收容空间分隔成前声腔和后声腔，所述振膜与正对所述振膜的所述第一壳体之间间隔形成所述前声腔，所述发声器件还包括与所述第一壳体间隔设置的第二壳体、以及连通所述第二壳体与所述第一壳体的连接件，所述第二壳体具有辅助声腔，所述连接件连通所述辅助声腔与所述后声腔。
优选的，所述第二壳体的数量为多个。
优选的，所述连接件的数量为一个或者多个。
优选的，所述第一壳体包括具有开口的主体以及覆盖所述开口并与所述主体围合形成所述收容空间的盖板，所述主体包括与所述振膜正对的底板以及自所述底板边缘朝所述盖板延伸并与所述盖板连接的侧壁，所述主体还包括自所述底板朝所述收容空间内延伸的挡壁，所述挡壁将所述后声腔分隔成第一后声腔以及与所述扬声器单体对应的第二后声腔，所述第一后声腔内封装有吸音材料，所述连接件一端与所述第二后声腔连通，所述连接件的另一端与所述辅助声腔连通。
优选的，所述连接件为两端开口的中空管状结构，所述侧壁对应所述连接件贯穿开设有安装部，所述连接件靠近所述第一壳体的一端固定在所述安装部。
优选的，所述安装部为贯穿所述侧壁的安装孔或者自所述侧壁边缘朝所述底板方向凹陷形成的安装缺口。
优选的，所述第二壳体对应所述连接件开设有通孔，所述连接件靠近所述第二壳体的一端固定在所述通孔并经所述通孔延伸至所述辅助声腔。
优选的，所述侧壁形成连通所述前声腔与外界的导声通道，所述导声通道与所述连接件靠近所述第一壳体的一端相对设置。
优选的，所述第一壳体对应所述第一后声腔开设有灌装孔，所述吸音材料为吸音粉料，所述吸音材料经所述灌装孔装入所述第一后声腔内。
优选的，所述第一壳体对应所述第二后声腔开设有泄漏孔。
本实用新型还提供了一种电子设备，所述电子设备包括所述的发声器件。
 有益效果
与相关技术相比，本实用新型具有如下有益效果：发声器件通过设置具有辅助声腔的第二壳体，改善了发生器件的低频性能；应用该发声器件的电子设备可以利用内部闲置的空间作为辅助声腔，从而改善了电子设备的低频性能。
 附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本实用新型发声器件的立体结构图；
图2为本实用新型发声器件的立体分解图；
图3为本实用新型发声器件的剖视图；
图4为本实用新型电子设备的结构示意图。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请参阅图1和图2，本实用新型提供了一种发声器件100，包括具有收容空间11的第一壳体1、收容于所述收容空间11内并设有用于振动发声的振膜21的扬声器单体2、与所述第一壳体1间隔设置并具有辅助声腔31的第二壳体3以及连通所述第二壳体1与所述第一壳体1的连接件4。所述振膜21将所述收容空间11分隔成前声腔111和后声腔112，所述振膜21与正对所述振膜21的所述第一壳体1之间间隔形成所述前声腔111，所述连接件4连通所述辅助声腔31与所述后声腔112。
再结合图3所示，所述第一壳体1包括具有开口120的主体12以及覆盖所述开口120并与所述主体12围合形成所述收容空间11的盖板13。所述主体12包括与所述振膜21正对的底板121以及自所述底板121边缘朝所述盖板13延伸并与所述盖板13连接的侧壁122，侧壁122远离底板的一端围成所述开口120，所述主体12还包括自所述底板121朝所述收容空间11内延伸的挡壁123，所述挡壁123将所述后声腔112分隔成第一后声腔1121以及与所述扬声器单体2对应的第二后声腔1122，所述第一后声腔1121内封装有吸音材料1120，所述连接件4一端与所述第二后声腔1122连通，所述连接件4的另一端与所述辅助声腔31连通。
所述侧壁122形成连通所述前声腔111与外界的导声通道1221，所述导声通道1221与所述连接件3靠近所述第一壳体1的一端相对设置。所述第一壳体1对应所述第一后声腔1121开设有灌装孔14，所述吸音材料1120为吸音粉料，所述吸音材料1120经所述灌装孔14装入所述第一后声腔1121内。所述第一壳体1对应所述第二后声腔1122开设有泄漏孔15。
所述第二壳体3的数为一个或多个，所述第二壳体3对应所述连接件4开设有通孔32，所述连接件4靠近所述第二壳体3的一端固定在所述通孔32并经所述通孔32延伸至所述辅助声腔31。
所述连接件4的数量为一个或者多个，所述连接件4为两端开口的中空管状结构，所述侧壁122对应所述连接件4贯穿开设有安装部1221，所述连接件4靠近所述第一壳体1的一端固定在所述安装部1222。所述安装部1222为贯穿所述侧壁122的安装孔或者自所述侧壁122边缘朝所述底板121方向凹陷形成的安装缺口。
再结合图4所示，本实用新型还提供了一种电子设备200，所述电子设备包括所述的发声器件100。
与相关技术相比，本实用新型具有如下有益效果：发声器件通过设置具有辅助声腔的第二壳体，改善了发生器件的低频性能；应用该发声器件的电子设备可以利用内部闲置的空间作为辅助声腔，从而改善了电子设备的低频性能。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (11)

  1. 一种发声器件，包括具有收容空间的第一壳体和收容于所述收容空间内并设有用于振动发声的振膜的扬声器单体，所述振膜将所述收容空间分隔成前声腔和后声腔，所述振膜与正对所述振膜的所述第一壳体之间间隔形成所述前声腔，其特征在于，所述发声器件还包括与所述第一壳体间隔设置的第二壳体、以及连通所述第二壳体与所述第一壳体的连接件，所述第二壳体具有辅助声腔，所述连接件连通所述辅助声腔与所述后声腔。
  2. 根据权利要求1所述的发声器件，其特征在于，所述第二壳体的数量为多个。
  3. 根据权利要求1或2所述的发声器件，其特征在于，所述连接件的数量为一个或者多个。
  4. 根据权利要求1所述的发声器件，其特征在于，所述第一壳体包括具有开口的主体以及覆盖所述开口并与所述主体围合形成所述收容空间的盖板，所述主体包括与所述振膜正对的底板以及自所述底板边缘朝所述盖板延伸并与所述盖板连接的侧壁，所述主体还包括自所述底板朝所述收容空间内延伸的挡壁，所述挡壁将所述后声腔分隔成第一后声腔以及与所述扬声器单体对应的第二后声腔，所述第一后声腔内封装有吸音材料，所述连接件一端与所述第二后声腔连通，所述连接件的另一端与所述辅助声腔连通。
  5. 根据权利要求4所述的发声器件，其特征在于，所述连接件为两端开口的中空管状结构，所述侧壁对应所述连接件贯穿开设有安装部，所述连接件靠近所述第一壳体的一端固定在所述安装部。
  6. 根据权利要求5所述的发声器件，其特征在于，所述安装部为贯穿所述侧壁的安装孔或者自所述侧壁边缘朝所述底板方向凹陷形成的安装缺口。
  7. 根据权利要求5所述的发声器件，其特征在于，所述第二壳体对应所述连接件开设有通孔，所述连接件靠近所述第二壳体的一端固定在所述通孔并经所述通孔延伸至所述辅助声腔。
  8. 根据权利要求4所述的发声器件，其特征在于，所述侧壁形成连通所述前声腔与外界的导声通道，所述导声通道与所述连接件靠近所述第一壳体的一端相对设置。
  9. 根据权利要求4所述的发声器件，其特征在于，所述第一壳体对应所述第一后声腔开设有灌装孔，所述吸音材料为吸音粉料，所述吸音材料经所述灌装孔装入所述第一后声腔内。
  10. 根据权利要求4所述的发声器件，其特征在于，所述第一壳体对应所述第二后声腔开设有泄漏孔。
  11. 一种电子设备，其特征在于，所述电子设备包括如权利要求1-10任一项所述的发声器件。
PCT/CN2019/110855 2018-12-30 2019-10-12 发声器件及电子设备 Ceased WO2020140548A1 (zh)

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