WO2023159991A1 - 发声装置和电子设备 - Google Patents

发声装置和电子设备 Download PDF

Info

Publication number
WO2023159991A1
WO2023159991A1 PCT/CN2022/127407 CN2022127407W WO2023159991A1 WO 2023159991 A1 WO2023159991 A1 WO 2023159991A1 CN 2022127407 W CN2022127407 W CN 2022127407W WO 2023159991 A1 WO2023159991 A1 WO 2023159991A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
assembly
air pressure
pressure equalization
dome
Prior art date
Application number
PCT/CN2022/127407
Other languages
English (en)
French (fr)
Inventor
蔡晓东
张琳琳
Original Assignee
歌尔股份有限公司
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 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2023159991A1 publication Critical patent/WO2023159991A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the invention relates to the technical field of electroacoustic conversion, in particular to a sound generating device and electronic equipment.
  • the sound generating device is an important electro-acoustic transducer element in electronic products, which is used to convert the current signal into sound.
  • the sounding device is usually equipped with a voice coil located in the rear acoustic cavity. During the working process, the voice coil will inevitably generate heat, which needs to be dissipated. At the same time, in order to stabilize the vibration of the diaphragm of the sounding device, it is also necessary to balance the internal and external air pressure of the sounding device. .
  • the main purpose of the present invention is to provide a sound generating device, which is beneficial to heat dissipation and air pressure balance of the sound generating device.
  • the sounding device proposed by the present invention includes:
  • the vibration system is arranged in the housing, the vibration system includes a diaphragm assembly and a voice coil connected to the diaphragm assembly, the diaphragm assembly includes a diaphragm and a dome, and the voice coil is flat, The axial direction of the voice coil is perpendicular to the vibration direction of the diaphragm assembly;
  • the magnetic circuit system is arranged in the housing, the magnetic circuit system includes a first magnetic assembly and a second magnetic assembly arranged in parallel and spaced apart, and a magnetic assembly is formed between the first magnetic assembly and the second magnetic assembly. Gap, the voice coil is inserted in the magnetic gap; wherein,
  • An air pressure equalization hole is provided on the dome, and the diaphragm assembly further includes a waterproof and breathable film covering the air pressure equalization hole.
  • multiple air pressure equalization holes are provided on the dome.
  • a plurality of air pressure equalization holes are arranged in multiple rows on the dome.
  • a reinforcing rib is provided on the dome, and the air pressure equalization hole avoids the setting of the reinforcing rib.
  • the reinforcing rib extends along the arc-shaped extension direction of the dome, and at least one row of the air pressure equalization holes is provided on opposite sides of the reinforcing rib.
  • the waterproof and breathable membrane is arranged on a side of the diaphragm assembly away from the magnetic circuit system.
  • the first magnetic assembly includes a plurality of first magnets and first magnetic plates arranged in layers, the magnetization direction of the first magnets is the same as the vibration direction of the diaphragm, and any adjacent The magnetization directions of the two first magnets are opposite;
  • the second magnetic assembly is respectively provided with a second magnet and a second magnetic conductive plate corresponding to each first magnet and the first magnetic conductive plate, and the magnetization direction of the second magnet and the magnetization direction of the first magnet opposite to it in the opposite direction.
  • the present invention also proposes an electronic device, comprising:
  • the device case is provided with a sound outlet
  • the diaphragm assembly is arranged corresponding to the sound outlet.
  • a dust-proof net is further provided between the equipment shell and the sound-generating device, and the dust-proof net covers the sound outlet.
  • the electronic device is a smart watch or smart bracelet.
  • the technical solution of the present invention directly arranges the air pressure equalization hole on the dome, which is beneficial to the heat dissipation and air pressure balance of the sounding device; in addition, the waterproofing of the sounding device can be improved by covering the air pressure equalization hole with a waterproof breathable membrane. performance; moreover, the sounding device of the present invention adopts a flat voice coil, which can realize better acoustic performance under a smaller volume of the generating device, and is conducive to the miniaturization of the sounding device, so as to facilitate the sounding device in a smaller use on bulky electronic devices.
  • Fig. 1 is a schematic diagram of the explosive structure of an embodiment of the sounding device of the present invention; wherein, the voice coil and the magnetic circuit system are hidden;
  • Fig. 2 is a structural schematic diagram of another viewing angle of the dome of the sound emitting device in Fig. 1;
  • Fig. 3 is a schematic cross-sectional structure diagram of the sound generating device in Fig. 1;
  • FIG. 4 is a schematic structural diagram of an embodiment of the electronic device of the present invention.
  • FIG. 5 is a schematic diagram of a partial cross-sectional structure of the electronic device in FIG. 4 .
  • the directional indication is only used to explain the relationship between the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly.
  • the invention provides a sound generating device.
  • the sounding device 2 includes:
  • the vibration system located in the housing 23, the vibration system includes a diaphragm assembly and a voice coil 25 connected to the diaphragm assembly, the diaphragm assembly includes a diaphragm 21 and a dome 22, the voice coil 25 is flat, and the axial direction of the voice coil 25 is perpendicular to the vibration direction of the diaphragm assembly;
  • the magnetic circuit system is arranged in the housing 23, the magnetic circuit system includes a first magnetic assembly 271 and a second magnetic assembly 272 arranged in parallel and spaced apart, the first magnetic assembly 271 and the second magnetic assembly A magnetic gap is formed between 272, and the voice coil 25 is inserted in the magnetic gap; wherein,
  • the dome 22 is provided with an air pressure equalization hole 20 , and the diaphragm assembly further includes a waterproof and breathable membrane 24 , and the waterproof and breathable membrane 24 covers the air pressure equalization hole 20 .
  • the technical solution of the present invention is by directly setting the air pressure equalization hole 20 on the dome 22, which is beneficial to the heat dissipation and air pressure balance of the sounding device 2; in addition, the coverage of the air pressure equalization hole 20 by the waterproof breathable membrane 24 can improve the performance of the air pressure equalization hole 20.
  • the waterproof performance of the sounding device 2 is described; moreover, the sounding device of the present invention adopts a flat voice coil 25, which can realize better acoustic performance under a smaller volume of the sounding device 2, which is conducive to the miniaturization of the sounding device 2 , so as to facilitate the use of the sound generating device 2 on smaller electronic devices.
  • the diaphragm 21 is arranged in an arc shape.
  • the opposite sides of the diaphragm assembly form the sound output side and the rear acoustic cavity respectively, the diaphragm 21 protrudes away from the rear acoustic cavity, and the air pressure equalization
  • the hole 20 communicates with the rear acoustic cavity.
  • the device casing 10 is mostly circular or oval, or at least has one or more arc-shaped side walls, and the arc-shaped diaphragm 21 is beneficial to these.
  • the arc-shaped wall sections on the device case 10 fit together, so as to fully utilize the space of the arc-shaped shell portion of the electronic device.
  • the space of the arc-shaped casing of the electronic device can be fully utilized, and the voice coil 25 can
  • the vibration space is larger, and the vibration amplitude of the diaphragm 21 is larger, thereby improving the acoustic performance of the sound generating device 2 .
  • the magnetic circuit system further includes a magnetically permeable yoke 26 , and the first magnetic assembly 271 and the second magnetic assembly 272 are both disposed on the magnetically permeable yoke 26 .
  • the surface of the magnetically permeable yoke 26 facing away from the diaphragm 21 is arranged as a plane, so as to facilitate the stable installation of the sound generating device 2 on the electronic equipment.
  • a plurality of air pressure equalization holes 20 are provided on the dome 22 . It can be understood that, compared with one air pressure equalization hole 20, the area of the plurality of air pressure equalization holes 20 is larger, which is more conducive to heat dissipation and air pressure equalization. At the same time, even if some air pressure equalization holes 20 are blocked, it can still Heat dissipation and air pressure equalization are performed through the remaining air pressure equalization holes 20 to improve product reliability.
  • a plurality of air pressure equalization holes 20 are arranged in multiple rows on the dome 22, so that it is beneficial to realize that a plurality of air pressure equalization holes 20 are spread out on the dome 22, so that different positions
  • the heat is dissipated nearby, and at the same time, in the embodiment where the air pressure equalization hole 20 is opened by stamping, only one row of punching needles can be set, and multiple rows of the air pressure equalization hole 20 can be punched out sequentially, so as to achieve a greater balance. While the stamping efficiency is high, the number of stamping needles is reduced.
  • the dome 22 is provided with reinforcing ribs 221 to improve the strength of the dome 22 .
  • the air pressure equalization hole 20 is arranged avoiding the reinforcing rib 221 , so as to prevent the opening of the air pressure equalization hole 20 from affecting the strength of the dome 22 .
  • the reinforcing rib 221 extends along the arc extending direction of the dome 22 .
  • the dome 22 is usually arranged in a long strip shape, that is, the reinforcing rib 221 extends along the length direction of the dome 22, so that the dome 22
  • the above-mentioned dome 22 can be better strengthened in the length direction which is easier to deform.
  • at least one row of air pressure equalization holes 20 are respectively provided on opposite sides of the reinforcing rib 221, so as to facilitate the pressure equalization holes on the dome 22 while avoiding the reinforcing rib 221. 20 scattered layout.
  • the waterproof breathable membrane 24 is bonded to the dome 22, and the bonding method can not only realize the connection between the two parts, but also make the connection between the two parts sealed, so as to further improve the durability of the product. Water resistance.
  • the waterproof and gas-permeable membrane 24 is disposed on the side of the diaphragm assembly away from the magnetic circuit system, that is, the waterproof and gas-permeable membrane 24 is located outside the dome 22 . It can be understood that the outer side of the dome 22 is generally flat, which is suitable for adhering the waterproof and gas-permeable membrane 24 and facilitates the replacement of the waterproof and gas-permeable membrane 24 .
  • the casing 23 can not only provide attachment for the diaphragm 21 , but also provide protection for the diaphragm 21 .
  • the casing 23 is also arranged in a curved shape, so that the two can be matched and installed.
  • the housing 23 includes an upper shell 231 and a lower shell 232, and the diaphragm 21 is integrally connected with the upper shell 231. In this way, during assembly, after the lower shell 232 is placed on the magnetic circuit system, The integral diaphragm 21 and the upper shell 231 are modularly installed on the lower shell 232 to realize modular installation of products and improve assembly efficiency.
  • the diaphragm 21 and the upper case 231 can be connected as a whole by hot pressing or injection molding, but not limited to, so that, on the one hand, the seamless combination between the diaphragm 21 and the upper case 231 can be realized , improve the waterproof ability to meet the needs of high-level waterproof, on the other hand, it can simplify the assembly process of materials, save manpower and material resources, and on the other hand, the bonding force between the diaphragm 21 and the upper shell 231 is strong, and it is not easy to separate and fail.
  • the first magnetic assembly 271 includes two first magnets 271a and two first magnetically conductive plates 291 stacked in layers, and the magnetization direction of the first magnets 271a is the same as that of the diaphragm 21 have the same vibration direction, and the magnetization directions of the two first magnets 271a are opposite;
  • the second magnetic assembly 272 is provided with a second magnet 272a and A second magnetically conductive plate 292, the magnetization direction of the second magnet 272a is opposite to the magnetization direction of the first magnet 271a opposite to it;
  • the voice coil 25 has two Straight sections arranged at intervals and with opposite current directions, wherein one of the straight sections is located in the magnetic gap formed by a pair of first magnetically conductive plates 291 and second magnetically conductive plates 292 close to one end of the diaphragm 21 , the other said straight section is located in the magnetic gap formed by another pair of first magnetically permeable plate 291 and second magnetically permeable plate 292 away from one end of said dia
  • first magnet 271a and one second magnet 272a may be provided, and the voice coil 25 is arranged between the first magnet 271a and the second magnet 272a;
  • three or more first magnets 271a may also be provided, and for the three or more first magnets 271a, the magnetization of any two adjacent first magnets 271a In the opposite direction, the number and position of the second magnets 272a are set accordingly.
  • the number of voice coils 25 increases accordingly, and a voice coil can be arranged between each pair of first magnets 271a and second magnets 272a 25 , a plurality of voice coils 25 are arranged sequentially along the vibration direction of the diaphragm 21 and fixed together sequentially.
  • the magnet closest to the diaphragm 21 is provided with a first magnetic conductive plate 291 to improve the utilization rate of the magnetic field.
  • a second magnetic conductive plate 292 is provided between any two adjacent magnets, so as to further improve the utilization rate of the magnetic field.
  • the present invention also proposes an electronic device.
  • the electronic device includes a device case 10 and a sounding device 2.
  • the sounding device 2 For the specific structure of the sounding device 2, refer to the above-mentioned embodiments. Since this electronic device adopts all the above-mentioned embodiments All the technical solutions of the present invention, therefore at least have all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be repeated here.
  • the device case 10 is provided with a sound outlet 100; the diaphragm assembly of the sound generating device 2 is arranged corresponding to the sound outlet 100, so as to facilitate sound generation.
  • the air pressure equalization hole 20 is also provided corresponding to the sound outlet 100 , so as to conduct heat dissipation and air pressure equalization through the air pressure equalization hole 20 and the sound outlet 100 in sequence.
  • the side wall of the device housing 10 includes at least an arc-shaped wall segment, and the arc-shaped wall segment is provided with the sound outlet 100 .
  • the sound generating device 2 is attached to the arc-shaped wall section, that is, the housing 23 and the diaphragm 21 are attached to the arc-shaped wall section.
  • the electronic device may be, but not limited to, a smart watch, a smart bracelet, etc., and its device case 10 may be circular or oval.
  • the entire side wall of its device case 10 is arc-shaped.
  • the device case 10 may only have one or more arc-shaped side walls, for example but not limited to, the two ends in the length direction are flat, and the two sides in the width direction are arc-shaped.
  • the electronic device further includes a dust-proof net 28 , and the dust-proof net 28 at least covers the air pressure equalization hole 20 to reduce the risk of dust and other dirt blocking the air pressure equalization hole 20 .
  • the dust-proof net 28 also covers the diaphragm 21 to reduce the risk of dust and other dirt adhering to the diaphragm 21, thereby affecting the vibration of the diaphragm 21; it can be understood that in this case, The dust-proof net 28 is usually set to cover the entire sound outlet 100 .
  • the dust-proof net 28 is arranged between the equipment case 10 and the sound generating device 2 .
  • the dust-proof net 28 may only be attached to the casing 23 , or may only be attached to the device case 10 , or may be attached to the case 23 and the device case 10 at the same time.
  • the housing 23 is provided with an installation protrusion 233 , and the dust filter 28 is installed on the installation protrusion 233 so as to be attached to the housing 23 .
  • the installation protrusion 233 is usually arranged close to the edge of the dust-proof net 28 , so as to restrict the edge of the dust-proof net 28 from curling toward the middle through the installation protrusion 233 .
  • at least one installation protrusion 233 is provided on both ends of the casing 23 along the arc-shaped extension direction of the diaphragm 21, so as to at least limit the direction of the two ends of the dust-proof net 28.
  • the middle is crimped to improve the assembly reliability of the dust-proof net 28 .
  • the air pressure equalization hole 20 is opened on a side of one installation protrusion 233 close to the other installation protrusion 233 , so as to ensure that the dust-proof net 28 can cover the air pressure equalization hole 20 .
  • the device case 10 is provided with an abutment protrusion 101 on the sound outlet 100, and the abutment protrusion 101 supports the dust-proof net 28 on the housing 23; It should be understood that, in this embodiment, the dust-proof net 28 is sandwiched between the device case 10 and the housing 23 .
  • the dust-proof net 28 can also be fixed to the casing 23 and/or the device case 10 , but not limited thereto.

Abstract

本发明公开一种发声装置和电子设备，其中，发声装置包括：壳体，振动系统，设于所述壳体，所述振动系统包括振膜组件和与所述振膜组件连接的音圈，所述振膜组件包括振膜和球顶，所述音圈呈扁平状，所述音圈的轴向垂直于所述振膜组件的振动方向；磁路系统，设于所述壳体，所述磁路系统包括平行且相间隔设置的第一磁组件和第二磁组件，所述第一磁组件和所述第二磁组件之间形成磁间隙，所述音圈插设于所述磁间隙；其中，所述球顶上设有气压均衡孔，所述振膜组件还包括防水透气膜，所述防水透气膜覆盖所述气压均衡孔。本发明的技术方案有利于发声装置的散热及气压均衡。

Description

发声装置和电子设备 技术领域
本发明涉及电声转换技术领域，特别涉及一种发声装置和电子设备。
背景技术
发声装置是电子产品中重要的电声换能元件，用于将电流信号转换成声音。发声装置通常设有位于后声腔的音圈，在工作过程中，音圈难免会产生热量，这些热量需要散发出去，同时为使发声装置的振膜的振动稳定，还需要均衡发声装置的内外气压。
发明内容
本发明的主要目的是提出一种发声装置，旨在有利于发声装置的散热及气压均衡。
为实现上述目的，本发明提出的发声装置包括：
壳体；
振动系统，设于所述壳体，所述振动系统包括振膜组件和与所述振膜组件连接的音圈，所述振膜组件包括振膜和球顶，所述音圈呈扁平状，所述音圈的轴向垂直于所述振膜组件的振动方向；
磁路系统，设于所述壳体，所述磁路系统包括平行且相间隔设置的第一磁组件和第二磁组件，所述第一磁组件和所述第二磁组件之间形成磁间隙，所述音圈插设于所述磁间隙；其中，
所述球顶上设有气压均衡孔，所述振膜组件还包括防水透气膜，所述防水透气膜覆盖所述气压均衡孔。
可选地，在所述球顶上，所述气压均衡孔设有多个。
可选地，多个所述气压均衡孔在所述球顶上呈多排排列设置。
可选地，所述球顶上设有加强筋，所述气压均衡孔避让所述加强筋设置。
可选地，所述加强筋沿所述球顶的弧形延伸方向延伸，在所述加强筋的 相对两侧各设有至少一排所述气压均衡孔。
可选地，所述防水透气膜设于所述振膜组件远离所述磁路系统的一侧。
可选地，所述第一磁组件包括相层叠设置的多个第一磁体和第一导磁板，所述第一磁体的充磁方向与所述振膜的振动方向相同，且任意相邻的两个第一磁体的充磁方向相反；
所述第二磁组件对应每一第一磁体和第一导磁板分别设有一第二磁体和第二导磁板，所述第二磁体的充磁方向和与其相对的第一磁体的充磁方向相反。
本发明还提出一种电子设备，包括：
设备壳，所述设备壳开设有出声口；以及
前述的发声装置，所述振膜组件对应所述出声口设置。
可选地，所述设备壳和所述发声装置之间还设有防尘网，所述防尘网覆盖所述出声口。
可选地，所述电子设备为智能手表或智能手环。
本发明的技术方案通过将气压均衡孔直接设置在球顶上，有利于发声装置的散热及气压均衡；此外，通过防水透气膜对所述气压均衡孔的覆盖，能提高所述发声装置的防水性能；再者，本发明的发声装置采用扁平状的音圈，能在较小的发生装置体积下，实现较好的声学性能，有利于发声装置的小型化，以有利于发声装置在较小体积的电子装置上的使用。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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发明的一些实施例，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示出的结构获得其他的附图。
图1为本发明发声装置一实施例的爆炸结构示意图；其中，音圈和磁路系统隐藏；
图2为图1中发声装置的球顶另一视角的结构示意图；
图3为图1中发声装置的截面结构示意图；
图4为本发明电子设备一实施例的结构示意图；
图5为图4中电子设备的局部截面结构示意图。
附图标号说明：
标号 名称 标号 名称
10 设备壳 100 出声口
101 抵接凸部 2 发声装置
21 振膜 22 球顶
20 气压均衡孔 23 壳体
231 上壳 232 下壳
24 防水透气膜 25 音圈
26 导磁轭 271 第一磁组件
271a 第一磁体 272 第二磁组件
272a 第二磁体 28 防尘网
291 第一导磁板 292 第二导磁板
233 安装凸起 221 加强筋
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，若全文中出现的“和/或”或者“及/或”，其含义包括三个并列的方案，以“A和/或B”为例，包括A方案、或B方案、或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提出一种发声装置。
参照图1至图5，在本发明一实施例中，该发声装置2包括：
壳体23；
振动系统，设于所述壳体23，所述振动系统包括振膜组件和与所述振膜组件连接的音圈25，所述振膜组件包括振膜21和球顶22，所述音圈25呈扁平状，所述音圈25的轴向垂直于所述振膜组件的振动方向；
磁路系统，设于所述壳体23，所述磁路系统包括平行且相间隔设置的第一磁组件271和第二磁组件272，所述第一磁组件271和所述第二磁组件272之间形成磁间隙，所述音圈25插设于所述磁间隙；其中，
所述球顶22上设有气压均衡孔20，所述振膜组件还包括防水透气膜24，所述防水透气膜24覆盖所述气压均衡孔20。
本发明的技术方案通过将气压均衡孔20直接设置在球顶22上，有利于发声装置2的散热及气压均衡；此外，通过防水透气膜24对所述气压均衡孔20的覆盖，能提高所述发声装置2的防水性能；再者，本发明的发声装置采用扁平状的音圈25，能在较小的发声装置2体积下，实现较好的声学性能，有利于发声装置2的小型化，以有利于发声装置2在较小体积的电子装置上的使用。
可选地，所述振膜21呈弧形设置。本实施例中，对于所述发声装置2，所述振膜组件的相对两侧分别形成出声侧和后声腔，所述振膜21朝远离所述后声腔的方向凸出，所述气压均衡孔20连通所述后声腔。可以理解，对于智 能手表、智能手环等电子设备，其设备壳10大都呈圆形或者椭圆形、或者至少具备一段或者多段弧形的侧壁，呈弧形设置的振膜21有利于与这些设备壳10上的弧形壁段相贴合，从而充能利用电子设备的弧形外壳部分的空间。本实施例通过呈弧形的振膜21的设置，能充分利用电子设备弧形外壳部分的空间，在不增加电子设备体积和形状、不改变发声装置2占用空间的情况下，使得音圈25的振动空间更大、振膜21的振动幅度更大，从而提升发声装置2的声学性能。
可选地，所述磁路系统还包括导磁轭26，所述第一磁组件271和所述第二磁组件272均设于所述导磁轭26上。可选地，所述导磁轭26的背离所述振膜21的表面呈平面设置，以有利于发声装置2在电子设备上的稳定安装。
进一步地，在所述球顶22上，所述气压均衡孔20设有多个。可以理解，相较于一个所述气压均衡孔20，多个所述气压均衡孔20的面积更大，更有利于散热及气压均衡，同时，即使有部分气压均衡孔20被封堵，仍能通过剩下的气压均衡孔20进行散热及气压均衡，提高产品的可靠性。可选地，多个所述气压均衡孔20在所述球顶22上呈多排排列设置，如此，有利于实现多个气压均衡孔20在所述球顶22上散布开来，使得不同位置的热量就近散出，同时在通过冲压的方式开设所述气压均衡孔20的实施例中，可仅设置一排冲压针，即可依次冲压出多排所述气压均衡孔20，实现在兼顾较高冲压效率的同时，减少冲压针的设置数量。
进一步地，所述球顶22上设有加强筋221，以提高所述球顶22的强度。可选地，所述气压均衡孔20避让所述加强筋221设置，以避免所述气压均衡孔20的开设影响所述球顶22的强度。
可选地，所述加强筋221沿所述球顶22的弧形延伸方向延伸。可以理解，在所述球顶22的弧形延伸方向上，所述球顶22通常呈长条形设置，也即，所述加强筋221沿所述球顶22的长度方向延伸，以使得所述球顶22在更易于形变的长度方向上能得到更好的强度加强。进一步可选地，在所述加强筋221的相对两侧各设有至少一排所述气压均衡孔20，以在避让所述加强筋221的同时，有利于所述球顶22上气压均衡孔20的分散布设。
进一步地，所述防水透气膜24粘固于所述球顶22，粘接的方式不仅能实现两个部件之间的连接，还能使连接的两个部件之间密封，以进一步提高产 品的防水性能。
可选地，所述防水透气膜24设于所述振膜组件远离所述磁路系统的一侧，也即所述防水透气膜24位于所述球顶22外侧。可以理解，所述球顶22的外侧通常较为平整，适于所述防水透气膜24的贴合设置，且可便于所述防水透气膜24的更换。
在本发明中，可以理解，所述壳体23不仅能为所述振膜21提供安装依附，还能为所述振膜21提供防护。本实施例中，与呈弧形的振膜21相对应地，所述壳体23也呈弧形设置，以使二者相适配安装。可选地，所述壳体23包括上壳231和下壳232，所述振膜21与所述上壳231连接为一体，如此，装配时，在将下壳232设于磁路系统之后，将一体的振膜21与上壳231模块式地安装至下壳232，实现产品的模块化安装，提高装配效率。进一步可选地，所述振膜21与所述上壳231可但不限于通过热压或者注塑的方式连接为一体，如此，一方面能实现振膜21与上壳231之间的无缝结合，提升防水能力，满足高等级防水的需求，另一方面能简化物料的装配工序，节省人力物力，再一方面振膜21与上壳231之间的结合力大，不易分离失效。
进一步地，参照图3，所述第一磁组件271包括相层叠设置的两个第一磁体271a和两个第一导磁板291，所述第一磁体271a的充磁方向与所述振膜21的振动方向相同，且该两个第一磁体271a的充磁方向相反；所述第二磁组件272对应每一第一磁体271a和每一第一导磁板291设有一第二磁体272a和一个第二导磁板292，所述第二磁体272a的充磁方向和与其相对的第一磁体271a的充磁方向相反；所述音圈25具有两条在所述振膜21的振动方向上间隔设置、且电流方向相反的平直段，其中一所述平直段位于靠近所述振膜21的一端的一对第一导磁板291和第二导磁板292所形成的磁间隙中，另一所述平直段位于远离所述振膜21的一端的另一对第一导磁板291和第二导磁板292所形成的磁间隙中，如此，所述音圈25所受到的驱动力大，起振速度快。然本设计不限于此，于其他一些实施例中，也可仅设置一个第一磁体271a和一个第二磁体272a，将音圈25设于该第一磁体271a和第二磁体272a之间；而于其他再一些实施例中，还可以设置三个或三个以上的第一磁体271a，对于该三个或三个以上的第一磁体271a，任意相邻的两个第一磁体271a的充磁方向相反，第二磁体272a的个数和位置则相应设置，此种情况下，音圈25的 个数相应增加，可以在每一对第一磁体271a和第二磁体272a之间配置一个音圈25，多个音圈25沿所述振膜21的振动方向依次排列设置，并依次固定在一起。
可选地，不管是第一磁组件271还是第二磁组件272，最靠近所述振膜21的磁体上设有第一导磁板291，以提高磁场利用率。进一步可选地，不管是第一磁组件271还是第二磁组件272，任意相邻的两个磁体之间设有第二导磁板292，以进一步提高磁场利用率。
本发明还提出一种电子设备，参照图1至图5，该电子设备包括设备壳10和发声装置2，该发声装置2的具体结构参照上述实施例，由于本电子设备采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。其中，所述设备壳10开设有出声口100；所述发声装置2的振膜组件对应所述出声口100设置，以便于发声。可以理解，所述气压均衡孔20也对应所述出声口100设置，以便于依次通过所述气压均衡孔20和所述出声口100进行散热及气压均衡。
进一步地，所述设备壳10的侧壁至少包括一段弧形壁段，所述弧形壁段开设有所述出声口100。所述发声装置2贴合安装于所述弧形壁段，也即所述壳体23和所述振膜21贴合安装于所述弧形壁段。需要说明的是，所述电子设备可但不限于是智能手表、智能手环等，其设备壳10可以呈圆形或者椭圆形，此种情况下，其设备壳10的整个侧壁均呈弧形，当然，其设备壳10也可仅具有一段或者多段弧形的侧壁，例如但不限于其长度方向的两端是平整的，宽度方向的两侧则是呈弧形的。
进一步地，所述电子设备还包括防尘网28，所述防尘网28至少覆盖所述气压均衡孔20，以降低灰尘等脏污将所述气压均衡孔20堵塞的风险。可选地，所述防尘网28还覆盖所述振膜21，以降低灰尘等脏污附着于所述振膜21，从而影响所述振膜21振动的风险；可以理解，此情况下，所述防尘网28通常设置为覆盖整个所述出声口100。
本发明中，所述防尘网28设于所述设备壳10和所述发声装置2之间。具体地，所述防尘网28可以仅安装依附于所述壳体23，也可以仅安装依附于所述设备壳10，还可以同时安装依附于所述壳体23和所述设备壳10。
可选地，所述壳体23上设有安装凸起233，所述防尘网28安装于所述安装凸起233，以安装依附于所述壳体23。本实施例中，所述安装凸起233通常靠近所述防尘网28的边缘设置，以通过所述安装凸起233限制所述防尘网28的边缘向中间卷缩。进一步可选地，所述壳体23的沿所述振膜21弧形延伸方向上的两端各设有至少一所述安装凸起233，以至少限制所述防尘网28的两端向中间卷缩，提高所述防尘网28的装配可靠性。可选地，所述气压均衡孔20开设在一所述安装凸起233的靠近另一所述安装凸起233的一侧，以确保所述防尘网28能覆盖所述气压均衡孔20。
可选地，所述设备壳10在所述出声口100上设有抵接凸部101，所述抵接凸部101将所述防尘网28抵持在所述壳体23上；可以理解，本实施例中，所述防尘网28夹固于所述设备壳10与所述壳体23之间。
当然，于其他实施例中，所述防尘网28还可但不限于粘固于所述壳体23和/或所述设备壳10。
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，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (10)

  1. 一种发声装置，其特征在于，包括：
    壳体；
    振动系统，设于所述壳体，所述振动系统包括振膜组件和与所述振膜组件连接的音圈，所述振膜组件包括振膜和球顶，所述音圈呈扁平状，所述音圈的轴向垂直于所述振膜组件的振动方向；
    磁路系统，设于所述壳体，所述磁路系统包括平行且相间隔设置的第一磁组件和第二磁组件，所述第一磁组件和所述第二磁组件之间形成磁间隙，所述音圈插设于所述磁间隙；其中，
    所述球顶上设有气压均衡孔，所述振膜组件还包括防水透气膜，所述防水透气膜覆盖所述气压均衡孔。
  2. 如权利要求1所述的发声装置，其特征在于，在所述球顶上，所述气压均衡孔设有多个。
  3. 如权利要求2所述的发声装置，其特征在于，多个所述气压均衡孔在所述球顶上呈多排排列设置。
  4. 如权利要求1所述的发声装置，其特征在于，所述球顶上设有加强筋，所述气压均衡孔避让所述加强筋设置。
  5. 如权利要求4所述的发声装置，其特征在于，所述加强筋沿所述球顶的弧形延伸方向延伸，在所述加强筋的相对两侧各设有至少一排所述气压均衡孔。
  6. 如权利要求1所述的发声装置，其特征在于，所述防水透气膜设于所述振膜组件远离所述磁路系统的一侧。
  7. 如权利要求1至6任一项所述的发声装置，其特征在于，所述第一磁组件包括相层叠设置的多个第一磁体和第一导磁板，所述第一磁体的充磁方 向与所述振膜的振动方向相同，且任意相邻的两个第一磁体的充磁方向相反；
    所述第二磁组件对应每一第一磁体和第一导磁板分别设有一第二磁体和第二导磁板，所述第二磁体的充磁方向和与其相对的第一磁体的充磁方向相反。
  8. 一种电子设备，其特征在于，包括：
    设备壳，所述设备壳开设有出声口；以及
    如权利要求1至7任一项所述的发声装置，所述振膜组件对应所述出声口设置。
  9. 如权利要求8所述的电子设备，其特征在于，所述设备壳和所述发声装置之间还设有防尘网，所述防尘网覆盖所述出声口。
  10. 如权利要求8或9所述的电子设备，其特征在于，所述电子设备为智能手表或智能手环。
PCT/CN2022/127407 2022-02-28 2022-10-25 发声装置和电子设备 WO2023159991A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202220428493.9U CN217011185U (zh) 2022-02-28 2022-02-28 发声装置和电子设备
CN202220428493.9 2022-02-28

Publications (1)

Publication Number Publication Date
WO2023159991A1 true WO2023159991A1 (zh) 2023-08-31

Family

ID=82395780

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/127407 WO2023159991A1 (zh) 2022-02-28 2022-10-25 发声装置和电子设备

Country Status (2)

Country Link
CN (1) CN217011185U (zh)
WO (1) WO2023159991A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217011185U (zh) * 2022-02-28 2022-07-19 歌尔股份有限公司 发声装置和电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10405090B2 (en) * 2016-12-28 2019-09-03 Mitek Corp., Inc. Water resistant loudspeaker
CN110856082A (zh) * 2019-10-10 2020-02-28 瑞声科技(新加坡)有限公司 发声器件
CN111970618A (zh) * 2020-10-20 2020-11-20 歌尔股份有限公司 发声装置和可穿戴设备
CN112188372A (zh) * 2020-09-23 2021-01-05 瑞声新能源发展(常州)有限公司科教城分公司 扬声器及电子设备
CN217011185U (zh) * 2022-02-28 2022-07-19 歌尔股份有限公司 发声装置和电子设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10405090B2 (en) * 2016-12-28 2019-09-03 Mitek Corp., Inc. Water resistant loudspeaker
CN110856082A (zh) * 2019-10-10 2020-02-28 瑞声科技(新加坡)有限公司 发声器件
CN112188372A (zh) * 2020-09-23 2021-01-05 瑞声新能源发展(常州)有限公司科教城分公司 扬声器及电子设备
CN111970618A (zh) * 2020-10-20 2020-11-20 歌尔股份有限公司 发声装置和可穿戴设备
CN217011185U (zh) * 2022-02-28 2022-07-19 歌尔股份有限公司 发声装置和电子设备

Also Published As

Publication number Publication date
CN217011185U (zh) 2022-07-19

Similar Documents

Publication Publication Date Title
CN104202700B (zh) 发声器件
CN108632729B (zh) 发声器件及便携终端
CN207677986U (zh) 一种扬声器模组
CN210781334U (zh) 扬声器及音频设备
US20170034632A1 (en) Speaker
US10993038B2 (en) Speaker
WO2016078413A1 (zh) 扬声器模组
WO2023159991A1 (zh) 发声装置和电子设备
CN214381372U (zh) 扬声器和电子设备
CN110366080A (zh) 扬声器和音频装置
CN211744718U (zh) 发声器件
WO2022257738A1 (zh) 发声器件和电子设备
CN102811410A (zh) 电声换能器
US11006209B2 (en) Rectangular microspeaker
WO2023159989A1 (zh) 发声装置和电子设备
CN111147986A (zh) 发声装置
CN210868143U (zh) 发声装置
CN117202042A (zh) 微型扬声器和声学装置
CN217904647U (zh) 发声装置和电子设备
JP2005079809A (ja) スピ−カ装置
CN205864735U (zh) 一种扬声器
JP2019134411A (ja) 音響性能が向上した音響機器
WO2020220710A1 (zh) 扬声器模组
WO2020103303A1 (zh) 扬声器模组
WO2019205658A1 (zh) 发声装置单体、发声模组及电子终端

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: 22928253

Country of ref document: EP

Kind code of ref document: A1