WO2022048579A1 - 发声装置及电子设备 - Google Patents

发声装置及电子设备 Download PDF

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Publication number
WO2022048579A1
WO2022048579A1 PCT/CN2021/116101 CN2021116101W WO2022048579A1 WO 2022048579 A1 WO2022048579 A1 WO 2022048579A1 CN 2021116101 W CN2021116101 W CN 2021116101W WO 2022048579 A1 WO2022048579 A1 WO 2022048579A1
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WO
WIPO (PCT)
Prior art keywords
sound
guide channel
cavity
area
casing
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PCT/CN2021/116101
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English (en)
French (fr)
Inventor
蒋国珠
龙立锋
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维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2022048579A1 publication Critical patent/WO2022048579A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
    • H04R1/2892—Mountings or supports for transducers

Definitions

  • the present application relates to the technical field of sound-emitting devices for electronic equipment, and in particular, to a sound-emitting device and electronic equipment.
  • a resonant cavity with a large enough volume is used in the sounding device to suppress high-frequency resonance peaks.
  • the resonant cavity will occupy the space volume of the rear cavity, resulting in sound production.
  • the low frequency performance of the device is deteriorated, thereby affecting the user experience.
  • the present application discloses a sounding device and an electronic device, which can solve the problem that the resonant cavity will occupy the space volume of the rear cavity when the space volume inside the sounding device is limited, resulting in poor low frequency performance of the sounding device.
  • an embodiment of the present application discloses a sounding device.
  • the disclosed sounding device includes a protective casing and a sounding main body, wherein the protective casing is provided with an installation cavity, and the sounding main body is arranged in the installation cavity and separates the installation cavity.
  • a front cavity and a rear cavity are formed, and the protective shell is also provided with a first sound guiding channel and a second sound guiding channel, the first sound guiding channel and the second sound guiding channel are respectively connected with the front cavity; the second sound guiding channel is far away from the front cavity.
  • the first end sealing cover of the device is provided with an elastic deformation piece, and the elastic deformation piece and the second sound guide channel enclose a resonance cavity.
  • an embodiment of the present application discloses an electronic device, and the disclosed electronic device includes the above sounding device.
  • a first sound-guiding channel and a second sound-guiding channel are respectively communicated with a front cavity, and a first end sealing cover of the second sound-guiding channel away from the front cavity is provided with an elastic deformation member, which is elastically deformed.
  • the deformation member and the second sound-guiding channel enclose a resonant cavity.
  • the resonant cavity can produce a better resonance effect with a smaller volume, so as to avoid the excessive occupation of the space of the rear cavity by the resonant cavity, and thus can
  • the high-frequency resonance peaks are better suppressed and the noise generated by them is eliminated, and the low-frequency performance of the sound generating device is improved, which can ultimately improve the user experience.
  • FIG. 1 is a cross-sectional view of a sounding device disclosed in an embodiment of the application.
  • FIG. 2 is a structural diagram of a sounding device disclosed in an embodiment of the application.
  • FIG. 3 is a structural diagram of a first housing disclosed in an embodiment of the present application.
  • FIG. 4 is a structural diagram of an elastic deformation member disclosed in an embodiment of the present application.
  • 100-protective shell 100a-connection hole, 110-first shell, 110a-bottom wall, 110b-first sidewall, 110c-second sidewall, 111-enclosure, 113-groove, 120-th two shells;
  • 300-elastic deformation member 310-first region, 320-second region;
  • first”, “second” and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances so that embodiments of the application can be practiced in sequences other than those illustrated or described herein.
  • the objects distinguished by “first”, “second”, etc. are usually one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • an embodiment of the present application discloses a sound-generating device.
  • the disclosed sound-generating device includes a protective casing 100 and a sound-generating body 200 .
  • the protective casing 100 is a basic component of the sound-emitting device, and the protective casing 100 provides an installation basis for the sound-emitting body 200 and can also provide protection for the sound-emitting body 200 .
  • the sound-emitting body 200 is disposed in the protective casing 100 .
  • the sound-emitting body 200 and the protective casing 100 form a front cavity A and a rear cavity B.
  • the protective casing 100 is provided with an installation cavity, and the sound-emitting body 200 is disposed in the installation cavity, and the installation cavity is divided into a front cavity A and a rear cavity B.
  • the protective casing 100 is also provided with a first sound guide channel C and a second sound guide channel D, the first sound guide channel C and the second sound guide channel D are respectively connected with the front cavity A, and the second sound guide channel D is far away from the front cavity.
  • the first end sealing cover of A is provided with an elastic deformation member 300, and the elastic deformation member 300 and the second sound guide channel D enclose a resonant cavity.
  • the diaphragm of the sound-emitting body 200 vibrates soundly, which in turn promotes the disturbance of the air in the front cavity A, thereby forming the sound that is finally transmitted from the first sound-guiding channel C, and finally realizes the sounding of the sound-emitting device.
  • the port sealing cover of the first end of the second sound guide channel D is provided with an elastic deformation member 300.
  • the elastic deformation member 300 and the second sound guide channel D form a resonant cavity, and the protective casing 100 can A connection hole 100a is provided, and the resonant cavity can communicate with the front cavity A through the connection hole 100a, so that the resonant cavity and the front cavity A form a parallel resonance structure.
  • the resonant cavity and the rear cavity B are isolated from each other.
  • the vibrating membrane of the sound-generating body 200 vibrates, and the vibration of the vibrating membrane can push the air in the front cavity A to flow.
  • the air flow will eventually be pushed by the air in the second sound guide channel D, and the elastic deformation member 300 will follow the vibration, thereby generating an equivalent sound compliance in parallel with the resonant cavity, thereby increasing the equivalent volume of the resonant cavity.
  • the resonant cavity can produce a better resonance effect with a smaller volume, which can avoid designing a resonant cavity with a larger volume, thereby avoiding excessive occupation of the space of the rear cavity B, and thus better suppressing high frequencies While eliminating the resonance peak and eliminating the noise generated by the resonance peak, the low-frequency performance of the sound-generating device can be improved, and finally the user experience can be improved.
  • the elastic deformation member 300 is disposed at the port of the first end of the second sound guide channel D. As shown in FIG. There are various matching relationships between the elastic deformation member 300 and the first end of the second sound guide channel D.
  • the elastic deformation member 300 directly seals the protective shell where the port on the first end of the second sound guide channel D is located. on the outer surface of the body. In this way, the elastic deformation member 300 will be stacked on the outer surface of the first end sealing cover, which will not only increase the height of the sounding device, but also make the elastic deformation member 300 easy to vibrate after the sounding device is assembled in place. Affected by surrounding components within electronic equipment.
  • the protective casing 100 may be provided with a groove 113 , and the groove 113 may provide a fixed installation position for the elastic deformation member 300 .
  • the port of the second sound guide channel D away from the first end of the front cavity A penetrates to the bottom surface of the groove 113 , and at least part of the elastic deformation member 300 is disposed in the groove 113 .
  • the elastic deformation member 300 is at least partially located in the groove 113, and substantially at least a part of the elastic deformation member 300 is embedded in the groove 113 of the protective casing 100, which is beneficial to reduce the sounding device. the height of.
  • all the elastic deformation members 300 may be arranged in the groove 113.
  • a vibration avoidance space may be formed between the elastic deformation member 300 and the notch of the groove 113.
  • the elastic deformation member 300 is substantially all located in the groove 113, and there is a certain distance from the notch of the groove 113.
  • the elastic deformation member 300 can be prevented from protruding out of the notch when it vibrates and deforms, and it will not interfere with the environmental components other than the groove 113.
  • the sound-emitting device disclosed in the embodiment of the present application can be installed in an electronic device, thereby The vibration range of the elastic deformation member 300 is prevented from affecting other components in the electronic device, thereby ensuring the normal operation of the electronic device.
  • the elastic deformation member 300 since the elastic deformation member 300 has a certain distance from the notch of the groove 113 , the space corresponding to the distance can better allow the elastic deformation member 300 to deform, so as to better prevent the deformation from being disturbed.
  • the elastic deformation member 300 may include a first area 310 and a second area 320 .
  • the first area 310 is arranged around the second area 320, the first area 310 is fixed on the surface where the port of the first end of the second sound guide channel D is located, and the second area 320 is connected to the second sound guide channel D.
  • the ports of the first end of the channel D are arranged opposite to each other, and the second area 320 is in a suspended state. Since the first area 310 is a surrounding structure, as long as the sealing assembly between the first area 310 and the protective casing 100 is ensured, it can be achieved Sealing assembly between the elastic deformation member 300 and the protective casing 100 .
  • the elastic deformation member 300 of the above-mentioned structure has distinct regions, which is beneficial to achieve more precise sealing assembly.
  • the vibration of the second region 320 since the second region 320 is disposed opposite to the port of the first end of the second sound guide channel D, the vibration of the second region 320 has a greater impact on the resonance effect, that is to say, improves the The vibration performance of the second region 320 is more conducive to increasing the equivalent volume of the resonant cavity, thereby effectively suppressing high-frequency resonance peaks and eliminating noise generated by them. Based on this, in a feasible manner, the thickness of the second region 320 may be smaller than the thickness of the first region 310 .
  • the thickness of the second region 320 may be related to the vibration The amplitude is related, the thickness of the second region 320 becomes thinner, so that the vibration amplitude of the second region 320 increases, which is beneficial to increase the equivalent volume of the resonant cavity.
  • the thickness of the first region 310 becomes thicker, and the first region The strength of 310 will increase, so that the surface of the first region 310 and the outer port of the port of the first end of the second sound guide channel D is more firmly fixed, thereby reducing the influence of deformation on the connection stability.
  • the elasticity of the second region 320 may be greater than the elasticity of the first region 310, and the better the elastic performance of the second region 320 is, so that the second region 320 is more easily deformed, and at the same time, it also makes The vibration amplitude of the second region 320 is larger, which is beneficial to increase the equivalent volume of the resonant cavity.
  • the first region 310 and the second region 320 can be made of different materials, so as to meet the elastic requirements described above, and of course, it can also be achieved by designing a corresponding structure that can improve the elasticity.
  • the elastic deformation member 300 may be a metal sheet, a plastic sheet, a film sheet, etc.
  • the embodiment of the present application does not limit the specific type of the elastic deformation member 300 .
  • the surface of the elastic deformation member 300 facing the second sound guide channel D may be provided with lines, and during the vibration process of the elastic deformation member 300, the lines can make the elastic deformation member 300 face the inner side of the second sound guide channel D
  • the surface is relatively uneven, so as to prevent the inner surface of the elastic deformation member 300 from being a single plane, so that the air driven by the vibration of the diaphragm can better drive the elastic deformation member 300 to deform, thereby helping to increase the effectiveness of the elastic deformation member 300.
  • compliance which is more conducive to improving the resonance performance.
  • the elastic deformation member 300 may include a first area 310 and a second area 320 , and the first area 310 may be disposed around the second area 320 .
  • the first area 310 can be fixed on the surface where the outer port of the port of the first end of the second sound guide channel D is located, and the second area 320 can be arranged opposite to the port of the first end of the second sound guide channel D.
  • the texture may include a first groove-shaped texture arranged on the inner surface of the first area 310 and a first groove-shaped texture arranged on the inner surface of the second area 320
  • the second groove-shaped pattern, the first region 310 can be fixed to the surface where the outer port of the port of the first end of the second sound guide channel D is located by welding, gluing, and screwing.
  • the first area 310 can be fixed to the surface where the outer port of the port of the first end of the second sound guide channel D is located by means of adhesive bonding, and the first area 310 of the inner surface of the first area 310
  • the groove-shaped pattern can accommodate more adhesive, so that the first area 310 is firmly bonded to the surface where the outer port of the port of the first end of the second sound guide channel D is located, and the operator is fixing the elastic deformation member 300.
  • the operator can simply and conveniently fix the elastic deformation member 300 by means of bonding, thereby helping to improve the firmness of the assembly. .
  • the depth of the second groove-like pattern may be greater than that of the first groove-like pattern, the second groove-like pattern on the inner surface of the second region 320 faces the resonant cavity, and the space in the groove of the second groove-like pattern may increase the resonant cavity. Therefore, during the vibration process of the second region 320, the equivalent volume of the resonant cavity can be improved. At the same time, the depth of the second groove-shaped pattern is greater than that of the first groove-shaped pattern, so that the second region 320 has a higher volume.
  • the elastic performance is improved, thereby further increasing the equivalent volume of the resonant cavity, and at the same time, it will not cause the first region 310 to affect the connection performance due to too deep lines, and finally can better effectively suppress the high-frequency resonance peak and eliminate its generation.
  • the effect of noise while improving the stability of the assembly.
  • the protective casing 100 may have various structures.
  • the protective casing 100 may be a one-piece structure. During the assembly process, the entire base material may be cut or bent. It is formed outside the sound-emitting body 200 in other ways, so that the assembly between the sound-emitting body 200 and the protective casing 100 can meet the requirements.
  • the protective casing 100 may include a first casing 110 and a second casing 120, and the first casing 110 may be provided with a first sound guide channel C,
  • the sounding body 200 may be disposed between the first casing 110 and the second casing 120, the sounding body 200 and the first casing 110 form a front cavity A, the first casing 110 and the second casing 120 are detachably connected, and
  • the first casing 110 , the second casing 120 and the sounding body 200 enclose the rear cavity B.
  • the first housing 110 may be provided with a surrounding baffle 111, the surrounding baffle 111 is arranged in the rear cavity B, the first housing 110 and the surrounding baffle 111 form a second sound guide channel D, and the second sound guide channel D is far away from the front cavity A.
  • the port at the first end is opened in the first casing 110 .
  • the enclosure 111 is disposed on the first housing 110 .
  • the enclosure 111 can be formed together, which is beneficial to improve the manufacturing efficiency of components, and can avoid the separate assembly of the enclosure 111 . .
  • the first housing 110 includes a bottom wall 110a, and a first side wall 110b and a second side wall 110c disposed on the bottom wall 110a.
  • the second side wall 110c is disposed in the area surrounded by the first side wall 110b
  • the sound-emitting body 200 is fixed between the top end of the second side wall 110c and the second housing 120
  • the sound-emitting body 200, the second side wall 110c and the bottom wall 110a form a front cavity A, so that the vibrating membrane of the sound-emitting body 200 vibrates soundly, and then pushes the air in the front cavity A to disturb, and then the sound is finally transmitted from the first sound-guiding channel C, and finally the sound-emitting device is realized. 's voice.
  • the sound-emitting body 200, the first side wall 110b, the second casing 120, the bottom wall 110a and the second side wall 110c enclose the rear cavity B, thereby helping to isolate the air in the front cavity A, thereby avoiding the occurrence of acoustic short-circuits. Low mid and low frequency losses, ultimately improving the low frequency performance of the disclosed sound-generating device.
  • the protective casing 100 may be provided with a connection hole 100a.
  • the connection hole 100a may be opened on the second side wall 110c, that is, the second side wall 110c is provided with a connection hole 100a
  • the second sound guide channel D includes the connection hole 100a, the connection hole 100a and the front cavity A Connected, so that the communication between the front cavity A and the resonant cavity can be made to ensure the sound vibration of the sounding body 200, promote the air disturbance in the front cavity A, and suppress the high-frequency resonance peak in the resonant cavity to prevent high-frequency resonance.
  • the peak is conducted to the rear cavity B, which is beneficial to improve the low frequency performance of the rear cavity B.
  • the front cavity A is formed at the inner side of the rear cavity B. This structure is conducive to making the height of the sounding device smaller, and is more suitable for electronic equipment with high thickness requirements.
  • the port area of the second sound guide channel D close to the second end of the front cavity A is the first area
  • the port area of the second sound guide channel D away from the first end of the front cavity A is the second area
  • the second area may be larger than the first area.
  • the diaphragm of the sounding main body 200 vibrates, and at the same time, the elastic deformation member 300 also vibrates.
  • the elastic deformation member 300 covers the second area, and the coverage area of the elastic deformation member 300 is the same as the second area.
  • the area is proportional, and the second area becomes larger, so that the equivalent volume of the elastic deformation member 300 when vibrating becomes larger, further suppressing the high-frequency resonance peak and eliminating the noise generated by it, and improving the low-frequency performance of the sound generating device.
  • the port area of the first end of the first sound guide channel C away from the front cavity A is larger than the port area of the first sound guide channel C close to the second end of the front cavity A.
  • the diaphragm of the sound-emitting body 200 vibrates soundly, thereby promoting the disturbance of the air in the front cavity A, thereby forming the sound to be finally transmitted from the first sound-guiding channel C, and the second sound-guiding channel C of the first sound-guiding channel C
  • the port area of the end can be larger than the port area of the first end of the first sound guide channel C, and the larger the port area of the second end of the first sound guide channel C, the greater the diffusion range of the sound from the first sound guide channel C. The larger the size, the larger the range of the sound that can be heard by the user, which is convenient for the user to use.
  • the second sound guide channel D can also be opened in the area of the protective casing 100 opposite to the front cavity A, or the second sound guide channel D can also be opened on the protective casing 100 and the rear cavity B In the opposite area, during the operation of the sound generating device, since the second sound guide channel D is opened on the protective casing 100, the second sound guide channel D does not interfere with the rear cavity B and the front cavity A.
  • the second sound guide channel D is not limited to being formed by arranging the enclosure 111, and the second sound guide channel D can also be formed by hollowing out a partial area of the protective casing 100. In this case, the second sound guide channel D is all It will not affect the space of the front chamber A and the rear chamber B.
  • the embodiments of the present application disclose an electronic device, and the disclosed electronic device includes the sound generating device described in the above embodiments.
  • the electronic devices disclosed in the embodiments of the present application may be mobile phones, computers, e-book readers, game consoles, wearable devices, etc.
  • the electronic devices may also be other types of devices, and the embodiments of the present application do not limit the specific types of electronic devices .

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

Abstract

本申请公开一种发声装置及电子设备，所公开的发声装置包括保护壳体（100）和发声主体（200），其中，保护壳体（100）开设有安装腔，发声主体（200）设置在安装腔中，且将安装腔分隔成前腔（A）和后腔（B），保护壳体（100）还开设有第一导音通道（C）和第二导音通道（D），第一导音通道（C）和第二导音通道（D）分别与前腔（A）连通；第二导音通道（D）远离前腔（A）的第一端密封盖设有弹性变形件（300），弹性变形件（300）与第二导音通道（D）围成谐振腔。

Description

发声装置及电子设备
交叉引用
本发明要求在2020年09月07日提交中国专利局、申请号为202010933311.9、发明名称为“发声装置及电子设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请涉及电子设备的发声装置技术领域，尤其涉及一种发声装置及电子设备。
背景技术
随着电子设备的快速发展，用户在体验电子设备的过程中，用户对电子设备的发声装置的音质要求也越来越高。电子设备的发声装置的出音孔大多在侧面，以规避对电子设备的正面外观的影响，这种设计使得发声装置只能采取通过导音通道连通发声装置的前腔与出音孔的方式出声，此种结构较容易导致发声装置发生前腔共振，且形成较高的高频谐振峰，高频谐振峰会产生较为刺耳的听感，进而会影响用户的使用体验。
在相关技术中，采用在发声装置内设置足够大体积的谐振腔来抑制高频谐振峰，但在发声装置内部的空间体积有限的情况下，谐振腔会挤占后腔的空间体积，从而导致发声装置的低频性能变差，进而影响用户的使用体验。
发明内容
本申请公开一种发声装置及电子设备，能够解决在发声装置内部的空间体积有限的情况下，谐振腔会挤占后腔的空间体积，从而导致发声装置的低频性能变差的问题。
为解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例公开一种发声装置，所公开的发声装置包括保护壳体和发声主体，其中，保护壳体开设有安装腔，发声主体设置在安装腔中，且将安装腔分隔成前腔和后腔，保护壳体还开设有第一导音通道和第二导音通道，第一导音通道和第二导音通道分别与前腔连通；第二导音通道远离前腔的第一端密封盖设有弹性变形件，弹性变形件与第二导音通道围成谐振腔。
第二方面，本申请实施例公开一种电子设备，所公开的电子设备包括上述的发声装置。
在本申请实施例公开一种发声装置中，第一导音通道和第二导音通道分别与前腔连通，第二导音通道远离前腔的第一端密封盖设有弹性变形件，弹性变形件与第二导音通道围成谐振腔，在发声装置工作过程中，发声主体的振膜进行发声振动，与此同时，弹性变形件也进行振动，从而产生与谐振腔并联的等效声顺，进而提高谐振腔的等效体积，在此种情况下，谐振腔以较小的体积即可产生更好的谐振效果，从而能够避免谐振腔对后腔的空间的过多挤占，进而能够较好地抑制高频谐振峰和消除其产生的杂音，且提高发声装置的低频性能，最终能够提升用户的使用体验。
附图说明
图1为本申请实施例公开的发声装置的剖视图；
图2为本申请实施例公开的发声装置的结构图；
图3为本申请实施例公开的第一壳体的结构图；
图4为本申请实施例公开的弹性变形件的结构图。
附图标记说明：
100-保护壳体、100a-连接孔、110-第一壳体、110a-底壁、110b-第一侧壁、110c-第二侧壁、111-围挡、113-凹槽、120-第二壳体；
200-发声主体；
300-弹性变形件、310-第一区域、320-第二区域；
A-前腔；
B-后腔；
C-第一导音通道；
D-第二导音通道。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，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他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请各个实施例公开的技术方案进行详细地说明。
请参考图1至图4，本申请实施例公开一种发声装置，所公开的发声装置包括保护壳体100和发声主体200。
保护壳体100为发声装置的基础构件，保护壳体100为发声主体200提供安装基础，也能够为发声主体200提供防护。在本申请实施例中，发声主体200设置在保护壳体100内。
发声主体200与保护壳体100形成前腔A和后腔B。可选的，保护壳体100开设有安装腔，发声主体200设置在安装腔中，且将安装腔分隔成前腔A 和后腔B。
保护壳体100还开设有第一导音通道C和第二导音通道D，第一导音通道C和第二导音通道D分别与前腔A连通，第二导音通道D远离前腔A的第一端密封盖设有弹性变形件300，弹性变形件300与第二导音通道D围成谐振腔。在发声装置工作过程中，发声主体200的振膜进行发声振动，进而推动前腔A内空气的扰动，进而形成声音最终从第一导音通道C传出，最终实现发声装置的发声。
在本申请实施例中，第二导音通道D的第一端的端口密封封盖设有弹性变形件300，弹性变形件300与第二导音通道D围成谐振腔，保护壳体100可以开设有连接孔100a，谐振腔可以通过连接孔100a与前腔A连通，从而使得谐振腔与前腔A形成并联谐振结构。当然，谐振腔与后腔B相互隔离。
在发声装置工作过程中，发声主体200的振膜进行发声振动，振膜的振动能够推动前腔A内的空气流动，由于前腔A与第二导音通道D连通，因此前腔A内的空气流动最终会通过第二导音通道D内的空气推动，弹性变形件300跟随振动，从而产生与谐振腔并联的等效声顺，进而提高谐振腔的等效体积，在此种情况下，谐振腔能够以较小的体积即可产生更好的谐振效果，从而能够避免设计较大体积的谐振腔，进而能够避免对后腔B的空间的过多挤占，进而能够较好地抑制高频谐振峰和消除其产生的杂音的同时，能够提高发声装置的低频性能，最终能够提升用户的使用体验。
在本申请实施例中，弹性变形件300设置于第二导音通道D的第一端的端口。弹性变形件300与第二导音通道D的第一端之间的配合关系有多种，例如，弹性变形件300直接密封贴设第二导音通道D的第一端的端口所在的保护壳体的外表面上。此种方式中，弹性变形件300会叠置在第一端密封盖的外侧表面，这不但会导致发声装置的高度增大，而且还会在发声装置装配到位之后，弹性变形件300的振动容易受到电子设备内周围部件的影响。
基于此，一种可选的方案中，保护壳体100可以开设有凹槽113，凹槽113可以为弹性变形件300提供固定安装位置。可选的，第二导音通道D远 离前腔A的第一端的端口贯通至凹槽113的底面，弹性变形件300的至少部分设置于凹槽113内。在所公开的发声装置的组装过程中，由于凹槽113能够起到定位的作用，因此操作人员在设置有凹槽113的保护壳体100上较为容易地安装弹性变形件300，进而有利于提高发声装置的组装效率。与此同时，此种装配方式中，弹性变形件300至少部分位于凹槽113中，实质上是弹性变形件300的至少部分嵌装到保护壳体100的凹槽113中，有利于降低发声装置的高度。
如上文所述，弹性变形件300可以全部设置于凹槽113内，在进一步的技术方案中，弹性变形件300与凹槽113的槽口之间可以形成振动避让空间，在此种情况下，弹性变形件300实质是全部位于凹槽113之内，而且距凹槽113的槽口有一定的距离，在弹性变形件300在振动过程中，弹性变形件300的至少部分可以在振动避让空间之内，从而能够避免弹性变形件300振动变形时伸出槽口之外，也就不会与凹槽113之外的环境构件产生干涉，本申请实施例公开的发声装置可以设置于电子设备，从而避免弹性变形件300的振动范围影响电子设备内的其他部件，进而保证电子设备内的正常工作。
与此同时，由于弹性变形件300距凹槽113的槽口具有一定的距离，该距离对应的空间能够更好地供弹性变形件300发生变形，达到较好地避免变形被干扰的目的。
在本申请实施例中，请参考图4，弹性变形件300可以包括第一区域310和第二区域320。在一种可行的方案中，第一区域310围绕第二区域320设置，第一区域310固定于第二导音通道D的第一端的端口所在的表面，第二区域320与第二导音通道D的第一端的端口相对设置，第二区域320为悬空状态，由于第一区域310为围绕式结构，因此只要确保第一区域310与保护壳体100之间的密封装配，就能够实现弹性变形件300与保护壳体100之间的密封装配。上述结构的弹性变形件300区域分明，有利于实现更明确地进行密封装配。
在弹性变形件300振动过程中，由于第二区域320与第二导音通道D的 第一端的端口相对设置，因此第二区域320的振动对谐振效果的影响较大，也就是说，提高第二区域320的振动性能，更有利于提高谐振腔的等效体积，进而有效抑制高频谐振峰和消除其产生的杂音。基于此，在一种可行的方式中，第二区域320的厚度可以小于所述第一区域310的厚度，在第二区域320所受振动力一定的条件下，第二区域320的厚度与其振动幅度相关，第二区域320的厚度变薄，从而导致第二区域320的振动幅度会增大，进而有利于提高谐振腔的等效体积，另外，第一区域310的厚度变厚，第一区域310的强度会提高，从而使得第一区域310与第二导音通道D的第一端的端口的外侧端口所在的表面固定的更牢靠，从而降低连接稳定性受变形的影响。
在另一种可行的方式中，第二区域320的弹性可以大于所述第一区域310的弹性，第二区域320的弹性性能越好，从而导致第二区域320更容易变形，同时也会使得第二区域320的振动幅度较大，进而有利于提高谐振腔的等效体积，另外，第一区域310的弹性性能越低，从而使得第一区域310的刚性强度会提高，从而使得第一区域310与第二导音通道D的第一端的端口的外侧端口所在的表面固定的更牢靠，本申请实施例不限制第一区域310和第二区域320的具体类别。当然，第一区域310和第二区域320可以采用不同的材料制成，从而满足上文所述的弹性需求，当然，也可以通过设计相应的能提高弹性的结构实现。
在本申请实施例中，弹性变形件300可以是金属薄片、塑胶薄片、薄膜片等，本申请实施例不限制弹性变形件300的具体种类。
在本申请实施例中，弹性变形件300朝向第二导音通道D的表面可以设置有纹路，在弹性变形件300振动过程中，纹路能够使得弹性变形件300朝向第二导音通道D的内侧表面较为不平整，从而避免弹性变形件300的内侧表面为单一平面，进而能够在振膜振动的过程驱动的空气更好地驱动弹性变形件300发生形变，从而有利于增加弹性变形件300的有效顺性，进而更有利于提高谐振性能。
如上文所述，在本申请实施例中，弹性变形件300可以包括第一区域310 和第二区域320，第一区域310可以围绕第二区域320设置。可选的，第一区域310可以固定于第二导音通道D的第一端的端口的外侧端口所在的表面，第二区域320可以与第二导音通道D的第一端的端口相对设置，在弹性变形件300朝向第二导音通道D的表面设置有纹路的情况下，纹路可以包括设置于第一区域310的内侧表面的第一槽状纹路以及设置于第二区域320的内侧表面的第二槽状纹路，第一区域310可以通过焊接、粘接、螺纹连接件的方式实现与第二导音通道D的第一端的端口的外侧端口所在的表面固定。
在一种可行的方式中，第一区域310可以通过粘接的方式固定于第二导音通道D的第一端的端口的外侧端口所在的表面固定，第一区域310的内侧表面的第一槽状纹路可以容纳较多的粘接胶，从而使得第一区域310与第二导音通道D的第一端的端口的外侧端口所在的表面粘接牢固，操作人员在将弹性变形件300固定与第二导音通道D的第一端的端口的外侧端口所在的表面的过程中，操作人员通过粘接的方式可以简单方便的完成弹性变形件300的固定，从而有利于提高组装的牢固性。
另外，第二槽状纹路的深度可以大于第一槽状纹路的深度，第二区域320的内侧表面的第二槽状纹路朝向谐振腔，第二槽状纹路的槽内空间可以增加谐振腔的体积，从而使得第二区域320在振动过程中，有利于提高谐振腔的等效体积，与此同时，第二槽状纹路的深度大于第一槽状纹路的深度，从而使得第二区域320的弹性性能得到提高，进而进一步提高谐振腔的等效体积，同时又不至于导致第一区域310由于纹路过深而影响连接性能，最终能更好地起到有效抑制高频谐振峰和消除其产生的杂音的作用，同时提高装配的稳定性。
在本申请实施例中，保护壳体100的结构可以有多种，例如，保护壳体100可以为一体式结构，在组装的过程中，可以将通过整块的基材，通过切割、折弯等方式形成于发声主体200之外，进而使得发声主体200与保护壳体100之间的装配满足要求。但是，考虑到生产的简易程度，一种可选的方案中，保护壳体100可以包括第一壳体110和第二壳体120，第一壳体110 可以开设有第一导音通道C，发声主体200可以设置在第一壳体110与第二壳体120之间，发声主体200与第一壳体110形成前腔A，第一壳体110与第二壳体120可拆卸相连，且第一壳体110、第二壳体120和发声主体200围成后腔B。
第一壳体110可以设置有围挡111，围挡111设置于后腔B内，第一壳体110和围挡111形成第二导音通道D，第二导音通道D远离前腔A的第一端的端口开设于第一壳体110。在组装过程中，第一壳体110与第二壳体120之间实现装配的过程中，可实现发声主体200被夹紧固定，有利于提高装配效率。与此同时，此种可拆卸的装配方式，方便后续对发声主体200的维修和更换。
另外，围挡111设置于第一壳体110，在制备第一壳体110的过程中，围挡111可以一并成型，有利于提高构件的制造效率，同时能够避免对围挡111的单独组装。
在本申请实施例中，第一壳体110包括底壁110a以及设置在底壁110a上的第一侧壁110b和第二侧壁110c。可选的，第二侧壁110c设置在第一侧壁110b围绕的区域内，发声主体200固定在第二侧壁110c的顶端与第二壳体120之间，发声主体200、第二侧壁110c和底壁110a形成前腔A，从而使得发声主体200的振膜进行发声振动，进而推动前腔A内的空气扰动，进而形成声音最终从第一导音通道C传出，最终实现发声装置的发声。
另外，发声主体200、第一侧壁110b、第二壳体120、底壁110a和第二侧壁110c围成后腔B，从而有利于隔绝前腔A的空气，进而避免出现声短路而造成中低频损失，最终提高所公开的发声装置的低频性能。
如上文所述，保护壳体100可以开设有连接孔100a。可选的，连接孔100a可以开设在第二侧壁110c上，也就是说，第二侧壁110c开设有连接孔100a，第二导音通道D包括连接孔100a，连接孔100a与前腔A连通，从而能够使前腔A和谐振腔之间的连通，进而确保发声主体200发声振动，推动前腔A内的空气扰动，且使得高频谐振峰在谐振腔内被抑制，防止高频谐振峰传导 至后腔B，进而有利于提高后腔B的低频性能。另外，上述结构中，形成前腔A位于后腔B的内侧，此种结构有利于使得发声装置的高度更小，更有利于适用于对厚度要求较高的电子设备中。
在本申请实施例中，第二导音通道D靠近前腔A的第二端的端口面积为第一面积，第二导音通道D远离前腔A的第一端的端口面积为第二面积，第二面积可以大于第一面积。在发声装置工作过程中，发声主体200的振膜进行发声振动，与此同时，弹性变形件300也进行振动，弹性变形件300覆盖于第二面积上，弹性变形件300的覆盖面积与第二面积成正比，第二面积变大，从而使得弹性变形件300进行振动时的等效体积变大，进而进一步抑制高频谐振峰和消除其产生的杂音，且提高发声装置的低频性能。
在本申请实施例中，第一导音通道C远离前腔A的第一端的端口面积大于第一导音通道C靠近前腔A的第二端的端口面积。在发声装置工作过程中，发声主体200的振膜进行发声振动，进而推动前腔A内空气的扰动，进而形成声音最终从第一导音通道C传出，第一导音通道C的第二端的端口面积可以大于第一导音通道C的第一端的端口面积，第一导音通道C的第二端的端口面积越大，从而使得第一导音通道C传出的声音的扩散范围越大，进而有利于声音被用户听到的范围越大，方便用户使用。
在本申请实施例中，第二导音通道D还可以开设于保护壳体100与前腔A相对的区域，或者，第二导音通道D还可以开设于保护壳体100上与后腔B相对的区域，在发声装置工作过程中，由于第二导音通道D开设于保护壳体100上，从而使得第二导音通道D与后腔B和前腔A均互不干涉。
当然，第二导音通道D不局限于通过设置围挡111形成，第二导音通道D还可以通过保护壳体100的局部区域挖空形成，此种情况下，第二导音通道D均不会对前腔A和后腔B的空间产生影响。
基于本申请实施例公开的发声装置，本申请实施例公开一种电子设备，所公开的电子设备包括上文实施例所述的发声装置。
本申请实施例公开的电子设备可以为手机、电脑、电子书阅读器、游戏 机、可穿戴设备等，当然，电子设备还可以为其它种类的设备，本申请实施例不限制电子设备的具体种类。
本申请上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (12)

  1. 一种发声装置，包括保护壳体(100)和发声主体(200)，其中，所述保护壳体(100)开设有安装腔，所述发声主体(200)设置在所述安装腔中，且将所述安装腔分隔成前腔(A)和后腔(B)，所述保护壳体(100)还开设有第一导音通道(C)和第二导音通道(D)，所述第一导音通道(C)和所述第二导音通道(D)分别与所述前腔(A)连通；所述第二导音通道(D)远离所述前腔(A)的第一端密封盖设有弹性变形件(300)，所述弹性变形件(300)与所述第二导音通道(D)围成谐振腔。
  2. 根据权利要求1所述的发声装置，其中，所述弹性变形件(300)包括第一区域(310)和第二区域(320)，所述第一区域(310)围绕所述第二区域(320)设置，所述第一区域(310)固定于所述第二导音通道(D)的第一端的端口所在的表面，所述第二区域(320)与所述第二导音通道(D)的第一端的端口相对设置。
  3. 根据权利要求2所述的发声装置，其中，所述第二区域(320)的厚度小于所述第一区域(310)的厚度，或者，所述第二区域(320)的弹性大于所述第一区域(310)的弹性。
  4. 根据权利要求2所述的发声装置，其中，所述弹性变形件(300)朝向所述第二导音通道(D)的表面设置有纹路，所述纹路包括设置于所述第一区域(310)的内侧表面的第一槽状纹路以及设置于所述第二区域(320)的内侧表面的第二槽状纹路，所述第二槽状纹路的深度大于第一槽状纹路的深度。
  5. 根据权利要求1所述的发声装置，其中，所述保护壳体(100)开设有凹槽(113)，所述第二导音通道(D)远离所述前腔(A)的第一端的端口贯通至所述凹槽(113)的底面，所述弹性变形件(300)的至少部分设置于 所述凹槽(113)内。
  6. 根据权利要求5所述的发声装置，其中，所述弹性变形件(300)与所述凹槽之间形成有振动避让空间，所述弹性变形件(300)在振动过程中，至少部分位于所述振动避让空间内。
  7. 根据权利要求1所述的发声装置，其中，所述第二导音通道(D)靠近所述前腔(A)的第二端的端口面积为第一面积，所述第二导音通道(D)远离所述前腔(A)的第一端的端口面积为第二面积，所述第二面积大于所述第一面积。
  8. 根据权利要求1所述的发声装置，其中，所述第一导音通道(C)远离所述前腔(A)的第一端的端口面积大于所述第一导音通道(C)靠近所述前腔(A)的第二端的端口面积。
  9. 根据权利要求1所述的发声装置，其中，所述第二导音通道(D)开设于所述保护壳体(100)与所述前腔(A)相对的区域，或者，所述第一导音通道(C)开设于所述后腔(B)相对的区域。
  10. 根据权利要求1所述的发声装置，其中，所述保护壳体(100)包括第一壳体(110)和第二壳体(120)，所述第一壳体(110)开设有所述第一导音通道(C)，所述发声主体(200)设置在所述第一壳体(110)与所述第二壳体(120)之间，所述发声主体(200)与所述第一壳体(110)形成所述前腔(A)，所述第一壳体(110)与所述第二壳体(120)可拆卸相连，且所述第一壳体(110)、所述第二壳体(120)和所述发声主体(200)围成所述后腔(B)，所述第一壳体(110)设置有围挡(111)，所述围挡(111)设置于所述后腔(B)内，所述第一壳体(110)和所述围挡(111)形成所述第二导音通道(D)，所述第二导音通道(D)远离所述前腔(A)的第一端的端口开设于所述第一壳体(110)。
  11. 根据权利要求10所述的发声装置，其中，所述第一壳体(110)包括底壁(110a)以及设置在所述底壁(110a)上的第一侧壁(110b)和第二侧壁(110c)，所述第二侧壁(110c)设置在所述第一侧壁(110b)围绕的区域内，所述发声主体(200)固定在所述第二侧壁(110c)的顶端与所述第二壳体(120)之间，所述发声主体(200)、所述第二侧壁(110c)和所述底壁(110a)形成所述前腔(A)，所述发声主体(200)、所述第一侧壁(110b)、所述第二壳体(120)、所述底壁(110a)和所述第二侧壁(110c)围成所述后腔(B)，所述第二侧壁(110c)开设有连接孔(100a)，所述第二导音通道(D)包括所述连接孔(100a)，所述连接孔(100a)与所述前腔(A)连通。
  12. 一种电子设备，包括权利要求1-11中任一项所述的发声装置。
PCT/CN2021/116101 2020-09-07 2021-09-02 发声装置及电子设备 WO2022048579A1 (zh)

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