WO2018014672A1 - 一种移动终端中声学器件的防尘装置及移动终端 - Google Patents

一种移动终端中声学器件的防尘装置及移动终端 Download PDF

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Publication number
WO2018014672A1
WO2018014672A1 PCT/CN2017/087824 CN2017087824W WO2018014672A1 WO 2018014672 A1 WO2018014672 A1 WO 2018014672A1 CN 2017087824 W CN2017087824 W CN 2017087824W WO 2018014672 A1 WO2018014672 A1 WO 2018014672A1
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WO
WIPO (PCT)
Prior art keywords
dustproof
mobile terminal
dustproof device
film body
curved surface
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Application number
PCT/CN2017/087824
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English (en)
French (fr)
Inventor
谷一平
韩克明
Original Assignee
广东欧珀移动通信有限公司
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
Priority claimed from CN201610569670.4A external-priority patent/CN106060202B/zh
Priority claimed from CN201620761517.7U external-priority patent/CN205812118U/zh
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Publication of WO2018014672A1 publication Critical patent/WO2018014672A1/zh

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    • 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
    • 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

  • Embodiments of the present invention relate to electronic product technologies, and in particular, to a dustproof device and a mobile terminal for an acoustic device in a mobile terminal.
  • a dust-proof net is generally disposed outside the microphone and the speaker. Over time, these dust and metal powder may block the holes in the non-woven dust net. Furthermore, the sound emitted by the mobile terminal is mixed with noise, which seriously affects the user's listening quality.
  • the present invention provides a dustproof device and a mobile terminal for an acoustic device in a mobile terminal.
  • a dustproof device for an acoustic device in a mobile terminal comprising: a dustproof film body;
  • the dustproof membrane body includes a curved surface portion for vibrating under the action of air pressure
  • the dustproof film body further includes a mounting portion located at an edge of the curved surface portion for mounting the dustproof film body on a carrying portion or an acoustic device of the mobile terminal.
  • a mobile terminal is further integrated, the mobile terminal integrated with the dustproof device according to the first aspect; the dustproof device is opposite to an acoustic device hole on the mobile terminal, and the bearing through the mounting portion and the mobile terminal The part or acoustic device is fixedly connected.
  • the dustproof device replaces the dustproof net of the woven fabric, solves the problem that the acoustic device is mixed with the noise, and improves the listening quality by providing a curved surface portion that vibrates the sound under the action of the air pressure on the dustproof membrane body.
  • FIG. 1 is a schematic cross-sectional view of a prior art dustproof net
  • FIG. 2 is a perspective view of a dustproof device for an acoustic device in a mobile terminal according to Embodiment 1 of the present invention
  • FIG. 3 is a top plan view of a dustproof device for an acoustic device in a mobile terminal according to Embodiment 1 of the present invention
  • FIG. 4 is a cross-sectional view taken along line A-A of the top view of the dustproof device of the acoustic device in the mobile terminal according to the first embodiment of the present invention
  • Figure 5 is a cross-sectional view taken along line B-B of the dustproof device of the acoustic device in the mobile terminal in the first embodiment of the present invention
  • FIG. 6 is a schematic diagram of a dustproof device for an acoustic device in another mobile terminal according to Embodiment 1 of the present invention.
  • FIG. 7 is a mobile terminal according to Embodiment 2 of the present invention.
  • FIG. 8 is a schematic structural diagram of the mobile terminal in FIG. 7.
  • FIG. 1 A cross-sectional view of a prior art dustproof net is shown in FIG. It can be seen from FIG. 1 that the dustproof net in the prior art comprises a nylon mesh layer 110, a pressure sensitive adhesive layer 120 and a release paper layer 130 which are sequentially stacked, wherein the nylon mesh layer 110 can be made of nanolunar, cotton or polyester. Material for waterproof and dustproof.
  • the pressure sensitive adhesive layer 120 bonds the nylon mesh layer 110 to the surface of the carrier, and the release paper layer 130 is detachably connected to the pressure sensitive adhesive layer 120 for protecting the pressure sensitive adhesive layer 120, which is easy to use.
  • the release paper layer 130 is removed, and the nylon mesh layer 110 is bonded to the surface of the carrier by the pressure-sensitive adhesive layer 120.
  • the prior art air filter has the following drawbacks: the air filter uses a non-woven dustproof net such as a nylon mesh, which has minute openings. After the mobile terminal is used for a long time, external dust and fine metal powder will enter the inside of the mobile phone, thereby adhering to the non-woven dustproof net.
  • a non-woven dustproof net such as a nylon mesh
  • the dustproof device provided by the present invention can better solve the above drawbacks.
  • FIG. 2 is a perspective view of a dustproof device 10 of an acoustic device in a mobile terminal according to Embodiment 1 of the present invention.
  • the dustproof device 10 of the present embodiment can be used for dustproof, waterproof, and improved sound quality of an acoustic device.
  • the dustproof device 10 specifically includes a dustproof film body 1.
  • the dust-proof film body 1 includes a curved surface portion 210 for vibrating under the action of air pressure in the sound chamber between the dust-proof film body 1 and the acoustic device.
  • the material of the dust-proof film body 1 is an elastic body, so that when the sound of the acoustic device causes a change in the air pressure in the sound chamber between the dust-proof film body 1 and the acoustic device, the curved surface portion 210 is under the action of the air pressure. Vibration occurred. When the acoustic device does not sound, the air pressure in the sound chamber returns to the normal value, and accordingly, the curved surface portion 210 also returns to the original state.
  • the elastic body is a silica gel
  • the dust-proof membrane body 1 is a silica gel film.
  • the dust-proof film body 1 may be prepared by using another elastomer instead of the silica gel.
  • the silicone film may be replaced by a styrene-based thermoplastic elastomer, a vinyl chloride-based thermoplastic elastomer or a diene-based thermoplastic elastomer. .
  • the dust-proof film body 1 further includes a mounting portion 220 located at an edge of the curved surface portion 210 for mounting the dust-proof film body 1 on a load-bearing portion or an acoustic device of the mobile terminal.
  • Fig. 3 is a plan view showing the dustproof device 10 of the acoustic device in the mobile terminal in the first embodiment of the present invention.
  • the dust-proof film body 1 includes a first recess 310.
  • the first recess 310 is formed by the first surface 1a of the dust-proof membrane body 1 extending opposite to the first surface 1a of the acoustic device, and the bottom surface 310a of the first recess 310 is a curved surface.
  • the dustproof film body 1 further includes a second groove 320.
  • a second depth is formed by the second surface 1b opposite to the first surface 1a, and the second surface is formed by a second depth.
  • the bottom surface 320a of the second groove 320 is a curved surface, and the bottom surface of the first groove 310 A portion between the 310a and the bottom surface 320a of the second groove 320 is a curved portion 210 to ensure that the curved portion 210 has sufficient space for vibration.
  • the dustproof device 10 may also separately provide the first groove 310 or the second groove 320.
  • the angle between the bottom surface 310a of the first groove 310 and the side surface 310b is rounded, and the angle between the bottom surface 320a of the second groove 320 and the side surface 320b is rounded.
  • the rounded corner design makes the connection between the curved surface portion 210 and the mounting portion 220 stronger, and the curved portion 210 and the mounting portion 220 are prevented from being broken due to multiple vibrations.
  • the curved surface portion 210 is wavy. As shown in FIG. 4, the curved surface portion 210 includes three regions, and the surfaces of the respective regions are all curved surfaces. The maximum depth of the first region 211 exceeds the maximum depth of the second region 212, and the bottom surface of the first region 211 is a curved concave surface. The bottom surface of the second region 212 is an arcuate convex surface, and the third region 213 is symmetrical with the first region 211 with respect to the central axis of the curved surface portion 210, thereby making the entire curved surface portion 210 appear wavy.
  • the shape of the curved surface portion 210 is not limited to a wave shape, and may be designed to have a shape in which the air pressure intensity is weakened and the vibration amplitude of the curved surface portion 210 is increased, according to actual needs.
  • the technical solution of the embodiment solves the problem that dust is trapped in the sound emitted by the acoustic device of the mobile terminal by replacing the dustproof net of the acoustic device with the dust-proof film body 1.
  • the curved surface portion 210 provided on the dust-proof membrane body 1 vibrates and sounds under the action of the air pressure in the sound chamber between the dust-proof membrane body 1 and the acoustic device, thereby realizing the vibration amplitude of the curved surface portion 210 in the low frequency band. It becomes larger, compensates for the small amplitude of the bass band, and causes the pressure change in the sound cavity to be small, which affects the sound quality, and satisfies the sound effect requirements of each frequency band. It is also possible to achieve a waterproof function to prevent water from flowing from the acoustic device hole to the inside of the mobile terminal and damaging the internal circuit.
  • the dustproof device 10 further includes a reinforcing sheet 230.
  • Fig. 5 is a cross-sectional view along the line B-B in a perspective view of the dustproof device 10 of the acoustic device in the mobile terminal in the first embodiment.
  • the reinforcing sheet 230 is disposed in the mounting portion 220 of the dust-proof film body 1 to achieve the function of reinforcing the hardness of the mounting portion 220, and the main body of the dust-proof device 10 is mounted on the carrying portion of the mobile terminal. When it is on an acoustic device, it is easy to assemble.
  • the reinforcing sheet 230 is a polyethylene terephthalate sheet or a polycarbonate sheet.
  • the reinforcing sheet 230 is integrated with the dustproof film body 1 by injection molding.
  • the reinforcing sheet 230 made of a polyethylene terephthalate sheet or a polycarbonate sheet is fixed in a mold by a fixing post, which is a tool for processing the dustproof device 10.
  • the silicone material is injected into the mold under the set process conditions, and the dustproof device 10 is integrated into the dustproof device 10 and the reinforcing sheet 230 by injection molding.
  • the dust device 10 is separated from the mold, and a hole 410 is left at a position corresponding to the fixed post on the mounting portion 220 of the dustproof device 10.
  • FIG. 6 is another dustproof device 10 according to an embodiment of the present invention.
  • there are various ways of providing the reinforcing sheets in the mounting portion 420 and are not limited to the manners exemplified above.
  • the bonding of the reinforcing sheet to the mounting portion 420 can also be achieved in the following manner.
  • At least one table by the mounting portion 420 The third depth is set to the inner extension to form at least one cavity 20b, and the reinforcement piece is disposed in the cavity 20b.
  • the side surface 20a of the dustproof device 1020 is a surface, and a third depth is formed along the side surface 20a of the dustproof device 20 to form an annular groove, and a reinforcing groove is arranged in the annular groove.
  • the cross-sectional view shown in Fig. 5 differs in that there is no hole 410 corresponding to the fixing post on the mounting portion 420.
  • the manner in which the cavity 20b is extended from the surface of the mounting portion 420 to the inside is not limited to the above, and the first surface 1a, which is the top surface of the mounting portion 420, or the second surface 1b, which is the bottom surface, may be used as the surface.
  • the depth extending from the surface to the inside may be determined according to actual needs, and may be a cavity 20b that is vertically penetrated from the top surface, that is, the first surface 1a to the bottom surface, that is, the second surface 1b, or may be provided as a non-penetrating cavity 20b. Wait.
  • the embodiment provides a mobile terminal 600 that integrates the dustproof device 10 as described in the above embodiment.
  • the dustproof device 10 is disposed opposite the acoustic device aperture 3 on the mobile terminal 600, and is fixedly coupled to the carrier portion of the mobile terminal 600 or the acoustic device 2 via the mounting portions 220, 420.
  • FIG. 8 is a schematic structural diagram of the mobile terminal 600 in the second embodiment.
  • the mobile terminal 600 may include: a memory 601, a central processing unit (CPU) 602, and a peripheral interface. 603, RF (Radio Frequency) circuit 605, audio circuit 606, speaker 611, receiver 613, power management chip 608, input/output (I/O) subsystem 609, touch screen 612, other input/control devices 610, and external Port 604, these components communicate via one or more communication buses or signal lines 607.
  • RF Radio Frequency
  • the illustrated mobile terminal 600 is merely one example of the mobile terminal 600, and that the mobile terminal 600 may have more or fewer components than those shown in the figures, and two or more components may be combined. Or can have different component configurations.
  • the various components shown in the figures can be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • the mobile terminal 600 in this embodiment may specifically be a terminal such as a mobile phone, a tablet computer, and a digital reader, and is preferably a smart phone.
  • the functions of the various components of the mobile terminal 600 will be described using a smartphone as an example.
  • the memory 601 can be accessed by the CPU 602, the peripheral interface 603, etc., and the memory 601 can include a high speed random access memory, and can also include a nonvolatile memory, such as one or more magnetic disk storage devices, flash memory devices. Or other volatile solid-state storage devices.
  • Peripheral interface 603, which can connect the input and output peripherals of the device to CPU 602 and memory 601.
  • I/O subsystem 609 which can connect input and output peripherals on the device, such as touch screen 612 and other input/control devices 610, to peripheral interface 603.
  • I/O subsystem 609 can include display controller 6091 and one or more input controllers 6092 for controlling other input/control devices 610.
  • one or more input controllers 6092 receive electrical signals from other input/control devices 610 or transmit electrical signals to other input/control devices 610, and other input/control devices 610 may include physical buttons (press buttons, rocker buttons, etc.) ), dial, slide switch, joystick, click wheel.
  • the input controller 6092 can be connected to any of the following: a keyboard, an infrared port, a USB interface, and a pointing device such as a mouse.
  • the touch screen 612 is an input interface and an output interface between the user terminal and the user, and displays the visual output to the user.
  • the visual output may include graphics, text, icons, videos, and the like.
  • Display controller 6091 in I/O subsystem 609 receives an electrical signal from touch screen 612 or an electrical signal to touch screen 612.
  • the touch screen 612 detects the contact on the touch screen, and the display controller 6091 converts the detected contact into an interaction with the user interface object displayed on the touch screen 612, ie, realizes human-computer interaction, and the user interface object displayed on the touch screen 612 may be running.
  • the icon of the game, the icon of the network to the corresponding network, and the like.
  • the device may also include a light mouse, which is a touch sensitive surface that does not display a visual output, or an extension of a touch sensitive surface formed by the touch screen.
  • the RF circuit 605 is mainly used for establishing communication between the mobile phone and the wireless network (ie, the network side), and realizing data reception and transmission between the mobile phone and the wireless network. For example, sending and receiving short messages, emails, and the like. Specifically, the RF circuit 605 receives and transmits an RF signal, which is also referred to as an electromagnetic signal, and the RF circuit 605 converts the electrical signal into an electromagnetic signal or converts the electromagnetic signal into an electrical signal, and through the electromagnetic signal and communication network and other devices Communicate.
  • an RF signal which is also referred to as an electromagnetic signal
  • RF circuitry 605 may include known circuitry for performing these functions including, but not limited to, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC ( COder-DECoder, codec) Chipset, Subscriber Identity Module (SIM), etc.
  • an antenna system an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC ( COder-DECoder, codec) Chipset, Subscriber Identity Module (SIM), etc.
  • CODEC COder-DECoder, codec
  • SIM Subscriber Identity Module
  • the audio circuit 606 is mainly used to receive audio data from the peripheral interface 603, convert the audio data into an electrical signal, and transmit the electrical signal to the speaker 611 or the receiver 613.
  • the speaker 611 is configured to restore the voice signal received by the mobile phone from the wireless network through the RF circuit 605 to sound and play the sound to the user.
  • the receiver 613 is configured to restore the voice signal received by the mobile phone from the wireless network through the RF circuit 605 to a sound and play the sound to the user when the call is established and the hands-free function is not turned on.
  • the power management chip 608 is used for power supply and power management of the CPU 602, the I/O subsystem 609, and the hardware connected to the peripheral interface.
  • the dustproof device 10 is fixedly connected to the position of the receiver hole in the mobile phone case of the smart phone.
  • the curved surface portion faces the apex of the largest peak on the first surface of the receiver 613 and the distance from the receiver 613 is not less than 0.3 mm to ensure that the dustproof device 10 has sufficient space to vibrate under the action of the sound waves generated by the corresponding receiver 613, thereby Output sound.
  • the dustproof device 10 can also be fixedly coupled to the receiver 613.
  • the dustproof device 10 can also be disposed at the position of the speaker hole in the mobile phone case of the smartphone.
  • the curved portion faces the apex of the largest peak on the first surface of the speaker 611 at a distance of not less than 0.5 mm from the speaker 611.
  • the dustproof device 10 can also be fixedly coupled to the speaker 611.
  • the mobile terminal 600 integrates the dustproof device 10 as provided in the first embodiment to avoid the problem that the sound quality of the mobile terminal 600 is affected by dust blocking the air filter.
  • there is no opening in the curved surface portion and water is prevented from flowing into the inside of the mobile terminal 600 through the curved portion through the hole of the acoustic device 2, thereby damaging the internal circuit.
  • the curved surface portion also has the characteristics that the air pressure intensity becomes weak and the vibration amplitude becomes large. In the low frequency band, the vibration amplitude of the curved surface portion becomes large, and the amplitude of the low frequency band is compensated for, resulting in a small change in the air pressure in the sound cavity and affecting the sound quality. Defects, meeting the sound requirements of each frequency band.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Set Structure (AREA)

Abstract

本发明公开了一种移动终端中声学器件的防尘装置及移动终端。所述防尘装置包括：防尘膜本体；所述防尘膜本体包括曲面部，用于在气压的作用下振动；所述防尘膜本体还包括安装部，所述安装部位于所述曲面部的边缘，用于将所述防尘膜本体安装于移动终端的承载部或声学器件上，解决灰尘堵住防尘网导致移动终端的声学器件发出的声音中掺入杂音的问题。同时，通过在防尘膜本体上设置曲面部，在所述防尘膜本体与声学器件之间的音腔中气压的作用下振动发声，实现在低音频段，曲面部的振动幅度变大，满足各频段的音效要求。还可以实现防水的功能，避免水从声学器件孔流入到移动终端内部。

Description

一种移动终端中声学器件的防尘装置及移动终端 技术领域
本发明实施例涉及电子产品技术，尤其涉及一种移动终端中声学器件的防尘装置及移动终端。
背景技术
随着通讯技术的发展，手机，特别是智能手机等移动终端成为消费者日常生活中不可缺少的电子产品。目前，为了保护移动终端的话筒和喇叭等声学器件的内部电路不受环境污染，同时不影响声音的质量，一般都在话筒和喇叭的外部设置一层防尘网。经过日积月累，这些灰尘以及金属粉末可能堵住该不织布防尘网上的孔。进而，导致移动终端发出的声音掺入杂音，严重影响用户的收听质量。
发明内容
有鉴于此，本发明提供一种移动终端中声学器件的防尘装置及移动终端。
提供一种移动终端中声学器件的防尘装置，包括：防尘膜本体；
所述防尘膜本体包括曲面部，用于在气压的作用下振动；
所述防尘膜本体还包括安装部，所述安装部位于所述曲面部的边缘，用于将所述防尘膜本体安装于移动终端的承载部或声学器件上。
还提供一种移动终端，所述移动终端集成有如第一方面所述的防尘装置；所述防尘装置正对所述移动终端上的声学器件孔，通过所述安装部与移动终端的承载部或声学器件固定连接。
本发明实施例提供的防尘装置替代织布防尘网，解决声学器件掺入杂音的问题，且通过在防尘膜本体上设置在气压的作用下振动发声的曲面部，提高收听质量。
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获得其他的附图。
图1为现有技术防尘网的截面示意图；
图2是本发明实施例一中的移动终端中声学器件的防尘装置的立体图；
图3是本发明实施例一中的移动终端中声学器件的防尘装置的俯视图；
图4是本发明实施例一中的移动终端中声学器件的防尘装置的俯视图中沿A-A面的截面图；
图5是本发明实施例一中的移动终端中声学器件的防尘装置的立体图中沿B-B面的截面图；
图6是本发明实施例一中提供的另一种移动终端中声学器件的防尘装置的示意图；
图7是本发明实施例二提供的一种移动终端；
图8是图7中的移动终端的结构示意图。
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。
如图1示出现有技术中防尘网的截面图。由图1可知，现有技术中的防尘网包括依次叠加的尼龙网层110、压敏胶层120和离型纸层130，其中，尼龙网层110可以采用纳纶、棉纶或涤纶等材质，用于防水防尘。压敏胶层120将所述尼龙网层110黏合到承载物的表面，离型纸层130则与压敏胶层120可分离连接，用于保护压敏胶层120，而在使用时很容易揭去该离型纸层130，利用压敏胶层120将尼龙网层110黏合在承载物的表面。
在发明人实现本发明的过程中，发现现有技术中的防尘网存在如下缺陷：防尘网采用如尼龙网的不织布防尘网，其具有微小开孔。在移动终端长时间使用后，外界的灰尘以及细小的金属粉末会进入到手机内部，从而附着在该不织布防尘网上。
本发明提供的防尘装置能够较佳解决上述缺陷。
实施例一
图2为本发明实施例一提供的移动终端中声学器件的防尘装置10的立体图。如图2所示，本实施例的防尘装置10可被用于声学器件的防尘、防水、以及提升声学器件的声音质量的情形。该防尘装置10具体包括：防尘膜本体1。
所述防尘膜本体1包括曲面部210，用于在所述防尘膜本体1与声学器件之间的音腔中气压的作用下振动。防尘膜本体1的材质是弹性体，在声学器件发声导致所述防尘膜本体1与声学器件之间的音腔中的气压发生变化时，以便于曲面部210在所述气压的作用下发生振动。在声学器件不发声时，该音腔中的气压恢复至正常值，相应地，曲面部210也恢复至原状。示例性的，所述弹性体为硅胶，即，所述防尘膜本体1为硅胶薄膜。也可以采用其它的弹性体替代硅胶，制备防尘膜本体1，例如可以采用苯乙烯类热塑性弹性体、氯乙烯类热塑性弹性体或二烯类热塑性弹性体等替换硅胶，制备防尘膜本体1。
防尘膜本体1还包括安装部220，所述安装部220位于所述曲面部210的边缘，用于将所述防尘膜本体1安装于移动终端的承载部或声学器件上。
图3是本发明实施例一中的移动终端中声学器件的防尘装置10的俯视图。如图2、图3和图5所示，防尘膜本体1包括第一凹槽310。由所述防尘膜本体1与所述声学器件相对的第一表面1a向内部延伸设定第一深度形成所述第一凹槽310，所述第一凹槽310的底面310a为曲面。
图4示出了实施例一中的移动终端中声学器件的防尘装置10的俯视图中沿A-A面的截面图。如图2、图4和图5所示，所述防尘膜本体1还包括第二凹槽320。由所述第一表面1a相对的第二表面1b向内部延伸设定第二深度形成第二凹槽320，所述第二凹槽320的底面320a为曲面，所述第一凹槽310的底面310a与所述第二凹槽320的底面320a之间的部位为曲面部210，以确保曲面部210有足够的空间进行振动。当然，在其它实施例中，防尘装置10亦可以单独设置第一凹槽310或第二凹槽320。
第一凹槽310的底面310a与侧面310b的夹角为圆角，以及，所述第二凹槽320的底面320a与侧面320b的夹角为圆角。圆角设计使得曲面部210与安装部220的连接更加牢固，避免因多次振动而导致曲面部210与安装部220断裂。
示例性的，曲面部210为波浪状。如图4所示，曲面部210包括三个区域，且各个区域的表面均为弧面。其中，第一区域211的最大深度超过第二区域212的最大深度，且第一区域211的底面为弧形的凹面。第二区域212的底面为弧形的凸面，并且，第三区域213与第一区域211关于曲面部210的中轴线对称，从而，使整个曲面部210呈现波浪状。曲面部210的形状并不限于波浪状，可以根据实际需要设计成其他能够实现气压强度变弱，曲面部210振动幅度变大效果的形状。
本实施例的技术方案，通过使用防尘膜本体1替换声学器件的防尘网，解决灰尘堵住防尘网导致移动终端的声学器件发出的声音中掺入杂音的问题。同时，防尘膜本体1上设有的曲面部210，在所述防尘膜本体1与声学器件之间的音腔中气压的作用下振动发声，实现在低音频段，曲面部210的振动幅度变大，弥补低音频段振幅小，导致音腔内气压变化也较小而影响声音质量的缺陷，满足各频段的音效要求。还可以实现防水的功能，避免水从声学器件孔流入到移动终端内部，而损坏内部电路。
在上述技术方案的基础上，防尘装置10还包括加强片230。图5示出了实施例一中的移动终端中声学器件的防尘装置10的立体图中沿B-B面的截面图。如图5所示，所述加强片230设置于所述防尘膜本体1的安装部220中，达到加强安装部220的硬度的功能，在将防尘装置10本体安装于移动终端的承载部或声学器件上时，便于装配。
示例性的，所述加强片230为聚对苯二甲酸乙二醇酯片材或聚碳酸酯片材。加强片230通过注塑方式与所述防尘膜本体1结合为一体。具体实现的方式是将由聚对苯二甲酸乙二醇酯片材或聚碳酸酯片材制成的加强片230通过固定柱固定于模具中，该模具为用于加工防尘装置10的工具。在固定好加强片230后，在设定的工艺条件下，向模具中注入硅胶材料，通过注塑的方式制成防尘膜本体1与加强片230结合为一体的防尘装置10后，将防尘装置10从模具中分离，在防尘装置10的安装部220上与固定柱对应的位置留下孔410。
图6为本发明实施例提供的另一种防尘装置10。如图6所示，将加强片设置于安装部420中的方式有多种，并不限于上述示例列举的方式。还可以通过下述方式实现加强片与安装部420的结合。由所述安装部420的至少一个表 面向内部延伸设定第三深度形成至少一个空腔20b，所述空腔20b内设置有所述加强片。
如图6所示，以防尘装置1020的侧面20a为表面，沿防尘装置20四周的侧面20a向内部延伸设定第三深度形成一个环形槽，在该环形槽中设置加强片，与图5示出的截面图不同的是，采用该方式在安装部420上没有固定柱对应的孔410。从安装部420的表面向内部延伸设置空腔20b的方式并不限于上述方式，还可以是以安装部420的顶面即第一表面1a或底面即第二表面1b作为表面。由表面向内部延伸的深度也可以根据实际需要确定，可以是设置由顶面即第一表面1a至底面即第二表面1b的上下贯通的空腔20b，也可以设置为不贯通的空腔20b等。
实施例二
请参照图7，本实施例提供了一种移动终端600，该移动终端600集成有如上述实施例所述的防尘装置10。所述防尘装置10正对所述移动终端600上的声学器件孔3设置，通过所述安装部220、420与移动终端600的承载部或声学器件2固定连接。
图8示出了实施例二中的移动终端600的结构示意图，如图6所示，该移动终端600可以包括：存储器601、中央处理器(Central Processing Unit，以下简称CPU)602、外设接口603、RF(Radio Frequency，射频)电路605、音频电路606、扬声器611、受话器613、电源管理芯片608、输入/输出(I/O)子系统609、触摸屏612、其他输入/控制设备610以及外部端口604，这些部件通过一个或多个通信总线或信号线607来通信。
应该理解的是，图示移动终端600仅仅是移动终端600的一个范例，并且移动终端600可以具有比图中所示出的更多的或者更少的部件，可以组合两个或更多的部件，或者可以具有不同的部件配置。图中所示出的各种部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件、或硬件和软件的组合中实现。
示例性的，本实施例中的移动终端600具体可以为手机、平板电脑以及数字阅读器等终端，优选为智能手机。
以智能手机为例说明移动终端600的各个部件的功能。存储器601，所述存储器601可以被CPU602、外设接口603等访问，所述存储器601可以包括高速随机存取存储器，还可以包括非易失性存储器，例如一个或多个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
外设接口603，所述外设接口603可以将设备的输入和输出外设连接到CPU602和存储器601。
I/O子系统609，所述I/O子系统609可以将设备上的输入输出外设，例如触摸屏612和其他输入/控制设备610，连接到外设接口603。I/O子系统609可以包括显示控制器6091和用于控制其他输入/控制设备610的一个或多个输入控制器6092。其中，一个或多个输入控制器6092从其他输入/控制设备610接收电信号或者向其他输入/控制设备610发送电信号，其他输入/控制设备610可以包括物理按钮(按压按钮、摇臂按钮等)、拨号盘、滑动开关、操纵杆、点击滚轮。值得说明的是，输入控制器6092可以与以下任一个连接：键盘、红外端口、USB接口以及诸如鼠标的指示设备。
触摸屏612，所述触摸屏612是用户终端与用户之间的输入接口和输出接口，将可视输出显示给用户，可视输出可以包括图形、文本、图标、视频等。
I/O子系统609中的显示控制器6091从触摸屏612接收电信号或者向触摸屏612发送电信号。触摸屏612检测触摸屏上的接触，显示控制器6091将检测到的接触转换为与显示在触摸屏612上的用户界面对象的交互，即实现人机交互，显示在触摸屏612上的用户界面对象可以是运行游戏的图标、联网到相应网络的图标等。值得说明的是，设备还可以包括光鼠，光鼠是不显示可视输出的触摸敏感表面，或者是由触摸屏形成的触摸敏感表面的延伸。
RF电路605，主要用于建立手机与无线网络(即网络侧)的通信，实现手机与无线网络的数据接收和发送。例如收发短信息、电子邮件等。具体地，RF电路605接收并发送RF信号，RF信号也称为电磁信号，RF电路605将电信号转换为电磁信号或将电磁信号转换为电信号，并且通过该电磁信号与通信网络以及其他设备进行通信。RF电路605可以包括用于执行这些功能的已知电路，其包括但不限于天线系统、RF收发机、一个或多个放大器、调谐器、一个或多个振荡器、数字信号处理器、CODEC(COder-DECoder，编译码器) 芯片组、用户标识模块(Subscriber Identity Module，SIM)等等。
音频电路606，主要用于从外设接口603接收音频数据，将该音频数据转换为电信号，并且将该电信号发送给扬声器611或受话器613。
扬声器611，用于将手机通过RF电路605从无线网络接收的语音信号，还原为声音并向用户播放该声音。
受话器613，用于在建立通话且未开启免提功能时，将手机通过RF电路605从无线网络接收的语音信号，还原为声音并向用户播放该声音。
电源管理芯片608，用于为CPU602、I/O子系统609及外设接口所连接的硬件进行供电及电源管理。
本发明实施例中，防尘装置10固定连接于智能手机的手机壳内的受话器孔的位置。曲面部正对受话器613的第一表面上最大波峰的顶点与受话器613的距离不小于0.3mm，以确保防尘装置10在对应的受话器613产生的声波的作用下有足够的空间发生振动，从而输出声音。防尘装置10还可以固定连接于受话器613上。
此外，防尘装置10还可以设置于智能手机的手机壳内的扬声器孔的位置。曲面部正对扬声器611的第一表面上最大波峰的顶点与扬声器611的距离不小于0.5mm。防尘装置10还可以固定连接于扬声器611上。
移动终端600集成了如实施例一所提供的防尘装置10，避免发生因灰尘堵住防尘网而影响移动终端600发出的声音质量的问题。同时，曲面部上没有开孔，避免水由声学器件2孔通过曲面部流入移动终端600内部，而损坏内部电路。曲面部还具有气压强度变弱，振动幅度变大的特点，实现在低音频段，曲面部的振动幅度变大，弥补低音频段振幅小，导致因音腔内气压变化也较小而影响声音质量的缺陷，满足各频段的音效要求。
注意，上述仅为本发明的较佳实施例及所运用技术原理。本领域技术人员会理解，本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围。因此，虽然通过以上实施例对本发明进行了较为详细的说明，但是本发明不仅仅限于以上实施例，在不脱离本发明构思的情况下，还可以包括更多其他等效实施例，而本发明的范围由所附的权利要求范围决定。

Claims (20)

  1. 一种移动终端中声学器件的防尘装置，其特征在于，包括：防尘膜本体；
    所述防尘膜本体包括曲面部，用于在气压的作用下振动；
    所述防尘膜本体还包括安装部，所述安装部位于所述曲面部的边缘，用于将所述防尘膜本体安装于移动终端的承载部或声学器件上。
  2. 根据权利要求1所述的防尘装置，其特征在于，所述防尘膜本体的材质是弹性体。
  3. 根据权利要求2所述的防尘装置，其特征在于，所述弹性体为硅胶。
  4. 根据权利要求2所述的防尘装置，其特征在于，所述弹性体还可以为苯乙烯类热塑性弹性体、氯乙烯类热塑性弹性体或二烯类热塑性弹性体。
  5. 根据权利要求1所述的防尘装置，其特征在于，所述防尘膜本体包括第一凹槽；
    由所述防尘膜本体与所述声学器件相对的第一表面向内部延伸设定第一深度形成所述第一凹槽，所述第一凹槽的底面为曲面。
  6. 根据权利要求5所述的防尘装置，其特征在于，所述第一凹槽的底面与侧面的夹角为圆角。
  7. 根据权利要求5所述的防尘装置，其特征在于，所述防尘膜本体还包括第二凹槽；
    由所述第一表面相对的第二表面向内部延伸设定第二深度形成第二凹槽，所述第二凹槽的底面为曲面，所述第一凹槽的底面与所述第二凹槽的底面之间的部位为曲面部。
  8. 根据权利要求7所述的防尘装置，其特征在于，所述第二凹槽的底面与侧面的夹角为圆角。
  9. 根据权利要求1所述的防尘装置，其特征在于，还包括加强片；
    所述加强片设置于所述防尘膜本体的安装部中。
  10. 根据权利要求9所述的防尘装置，其特征在于，所述加强片为聚对苯二甲酸乙二醇酯片材或聚碳酸酯片材。
  11. 根据权利要求9所述的防尘装置，其特征在于，所述加强片通过注塑 方式与所述防尘膜本体结合为一体。
  12. 根据权利要求9所述的防尘装置，其特征在于，由所述安装部的至少一个表面向内部延伸设定第三深度形成至少一个空腔，所述空腔内设置有所述加强片。
  13. 根据权利要求12所述的防尘装置，其特征在于，所述空腔形成于所述安装部的侧面。
  14. 根据权利要求12所述的防尘装置，其特征在于，所述空腔形成于所述安装部的顶面或底面。
  15. 根据权利要求14所述的防尘装置，其特征在于，所述空腔由所述安装部的顶面贯通至所述安装部的底面。
  16. 根据权利要求1-15任一所述的防尘装置，其特征在于，所述曲面部为波浪状。
  17. 根据权利要求16所述的防尘装置，其特征在于，所述曲面部包括依次连接的第一区域、第二区域和第三区域，所述第一区域的最大深度超过第二区域的最大深度，所述第三区域与所述第一区域对称设置于所述曲面部的中轴线两侧。
  18. 根据权利要求17所述的防尘装置，其特征在于，所述第一区域的底面为弧形的凹面。
  19. 根据权利要求17所述的防尘装置，其特征在于，所述第二区域的底面为弧形的凸面。
  20. 一种移动终端，其特征在于，所述移动终端集成有如权利要求1-19任一所述的防尘装置；所述防尘装置正对所述移动终端上的声学器件孔，通过所述安装部与移动终端的承载部或声学器件固定连接。
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