WO2021169410A1 - 一种电子设备的振动组件和电子设备 - Google Patents

一种电子设备的振动组件和电子设备 Download PDF

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Publication number
WO2021169410A1
WO2021169410A1 PCT/CN2020/128320 CN2020128320W WO2021169410A1 WO 2021169410 A1 WO2021169410 A1 WO 2021169410A1 CN 2020128320 W CN2020128320 W CN 2020128320W WO 2021169410 A1 WO2021169410 A1 WO 2021169410A1
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WO
WIPO (PCT)
Prior art keywords
electronic device
vibrating plate
vibrating
screen
vibrator
Prior art date
Application number
PCT/CN2020/128320
Other languages
English (en)
French (fr)
Inventor
王继伟
杨枭
叶千峰
陆文佳
周威存
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华为技术有限公司
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Publication of WO2021169410A1 publication Critical patent/WO2021169410A1/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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • 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
    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Definitions

  • This application relates to the technical field of electronic devices, and in particular to a vibration component of an electronic device and an electronic device.
  • a vibration module is provided inside the housing, and the housing is provided with an earpiece sound hole.
  • the vibration module vibrates and emits sound, which is transmitted to the outside through the earpiece sound hole.
  • the sound can be transmitted to the user’s ears.
  • the sound leakage through the sound hole of the earpiece is more serious, which is not conducive to protecting the privacy of the user.
  • the sound received by the user from the sound hole of the earpiece is not loud enough to be heard clearly.
  • dirt can easily enter the sound hole of the earpiece, causing the sound hole of the earpiece to be blocked and causing noise.
  • the present application provides a vibration component of an electronic device and an electronic device.
  • the vibration component can improve the loudness of the screen sound.
  • the first aspect of the embodiments of the present application provides a vibrating component of an electronic device, the vibrating component includes: a vibrating plate, the vibrating plate is used to connect with the screen of the electronic device; a vibrator, the vibrator and the vibrating plate Connected and capable of vibrating; wherein the vibrating plate is provided with a convex portion, and the convex portion extends in a direction perpendicular to the surface of the vibrating plate.
  • the rigidity of the vibrating plate is increased by arranging protrusions on the vibrating assembly, thereby improving the vibration intensity of the vibrating plate, and the protrusions can be arranged outside of The position where other parts of the electronic device interfere. Therefore, when the vibrating plate provided with the protrusion is installed in the electronic device, the risk of interference with other parts can be reduced, thereby facilitating the spatial arrangement of the parts without significantly increasing the thickness of the electronic device , Helps to realize the thinner and lighter of electronic equipment.
  • the plurality of protrusions distributed at intervals can be arranged according to the distribution of the internal components of the electronic device, so that the internal space of the electronic device can be reasonably utilized.
  • the frequency band with higher loudness of the vibrating component is wider.
  • a plurality of the protrusions are evenly distributed and surround the vibrator.
  • the protruding portion when the protruding portion surrounds the vibrator, the protruding portion further increases the rigidity of the vibrating plate, thereby further increasing the vibration intensity of the vibrating assembly, and improving the sound loudness of the screen.
  • the uniformity of the vibration of the vibrating plate of the vibrating assembly can be improved, thereby improving the uniformity of the screen sound and improving the sound performance of the electronic device.
  • a plurality of the protrusions are connected to form a ring structure.
  • the overall rigidity of the vibrating plate is relatively high, and the rigidity of each position thereof is approximately the same, that is, the rigidity of the vibrating plate at the position where the protrusions are provided is approximately the same, so Therefore, the natural frequency of the vibrating piece is approximately the same everywhere in the position where the protruding portion is provided.
  • the rigidity of the vibrating plate is relatively high and the natural frequency is relatively high. Therefore, when the vibrating plate resonates with the vibrator, the loudness of the frequency band with a higher frequency can be increased.
  • the ring structure surrounds the vibrator, and the vibrator is located in the center of the ring structure, so that the rigidity of each position of the vibrating plate after the protrusion is approximately the same, so that the vibrating assembly in all directions
  • the loudness of the sound is roughly the same, which improves the loudness of the sound from all directions of the electronic device and improves the uniformity of the sound from the screen.
  • the height h1 of the extension of the protruding portion is less than or equal to the height h2 of the vibrator, thereby facilitating the layout of the vibrating components in the electronic device. Reduce the risk of interference between the raised part and other parts of the electronic device.
  • the shape of the protrusion is round, square, tapered or irregular.
  • the shape of the vibrating plate is a circle, a square or a polygon.
  • the vibrating plate and the protrusion are an integral structure, or the vibrating plate and the protrusion are fixedly connected.
  • the material of the vibrating plate is metal
  • the material of the protrusion is metal
  • a second aspect of the embodiments of the present application provides an electronic device, and the electronic device includes:
  • a screen, the screen is mounted on the housing
  • the vibration component, the vibration component is the above-mentioned vibration component
  • the vibration component is installed on the surface of the screen.
  • the vibrating plate is pasted on the surface of the screen; or,
  • One of the vibrating plate and the screen is provided with a buckle, and the other is provided with a card slot, and the buckle can be matched with the card slot.
  • FIG. 1 is a schematic structural diagram of a screen and a vibration component of an electronic device provided by this application in a first specific embodiment
  • FIG. 2 is a schematic structural diagram of a screen and a vibrating component of an electronic device provided by this application in a second specific embodiment
  • FIG. 3 is a schematic structural diagram of a screen and a vibration component of an electronic device provided by this application in a third specific embodiment
  • Fig. 4 is a schematic structural diagram of a screen and a vibrating component of an electronic device provided by this application in a fourth specific embodiment
  • FIG. 5 is a schematic structural diagram of a screen and a vibration component of an electronic device provided by this application in a fifth specific embodiment
  • Fig. 6 is a side view of Fig. 3.
  • the electronic device gradually cancels the original earpiece sound hole, that is, the electronic device no longer uses the earpiece sound hole to produce sound, but uses the screen to produce sound.
  • Screen sound is usually achieved by pasting a vibrator on the screen. During the vibrating process, the vibrator can drive the screen to vibrate, and the screen vibrates to produce sound. When the user's ears are close to the screen, the sound of the screen vibration can be clearly transmitted to the user's ears, and the sound leakage is small, and the user's privacy protection is stronger.
  • canceling the sound hole of the earpiece can also avoid the noise caused by clogging the sound hole of the earpiece due to dirt.
  • a vibrating plate with an area larger than the area of the vibrator can be pasted on the screen, and the vibrator can be pasted on the vibrating plate.
  • the vibrating plate is first driven to vibrate, and the vibration of the vibrating plate drives the screen to vibrate. Since the area of the vibrating plate is larger than the area of the vibrator, the vibrating area can be increased, the amplitude of the sound wave when it is transmitted, and the loudness of the sound can be improved.
  • the area or thickness of the vibrating plate cannot be further increased, so that the amplitude of the sound wave cannot be further increased, which causes the user to still have too little sound when using it in a noisy environment. problem.
  • the electronic device may be a mobile phone, a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (ultra-mobile personal computer). , UMPC), netbooks, and cellular phones, personal digital assistants (PDAs), augmented reality (AR) devices, virtual reality (VR) devices, artificial intelligence (AI) devices , Wearable devices, in-vehicle devices, smart home devices, and/or smart city devices.
  • PDAs personal digital assistants
  • AR augmented reality
  • VR virtual reality
  • AI artificial intelligence
  • Wearable devices wearable devices
  • in-vehicle devices smart home devices
  • smart city devices smart city devices.
  • the electronic device may include components such as a screen 2, a circuit board, a battery, an audio module, a speaker, a receiver, and a microphone.
  • the screen 2 is used to display images, videos, etc.
  • the electronic device may include 1 or N screens 2, and N is a positive integer greater than 1.
  • Electronic equipment can realize audio functions through audio modules, speakers, receivers and other components. For example, music playback, recording, etc.
  • the audio module is used to convert digital audio information into an analog audio signal for output, and also used to convert an analog audio input into a digital audio signal.
  • the audio module can also be used to encode and decode audio signals.
  • the audio module may be provided in the processor, or part of the functional modules of the audio module may be provided in the processor.
  • Loudspeakers are also called “speakers” and are used to convert audio electrical signals into sound signals. Electronic devices can listen to music through speakers, or listen to hands-free calls.
  • the receiver is also called a "handset", which is used to convert audio electrical signals into sound signals. When an electronic device answers a call or a voice message, it can listen to the voice by placing the receiver close to the human ear.
  • the electronic device also includes a vibration component 1 for emitting sound.
  • the vibration component 1 is installed on the screen 2 of the electronic device. When the vibration component 1 vibrates, it can drive the screen 2 to vibrate and generate audio signals. , And convert the audio signal into a sound signal through the speaker.
  • the vibrating component 1 can be pasted to the screen 2 and can also be clipped to the screen 2. More specifically, one of the vibrating assembly 1 and the screen 2 may be provided with a buckle, and the other may be provided with a card slot, and when the buckle is matched with the card slot, the vibrating assembly 1 can be clamped to the screen 2. Specifically, as shown in FIGS. 1 to 6, the vibrating assembly 1 includes a vibrating plate 11 and a vibrator 12, wherein the vibrating plate 11 is used to connect with the screen 2 of the electronic device.
  • the vibrating plate 11 can be pasted on the surface of the screen 2; or the vibrating plate 11 can also be clipped to the screen 2, wherein one of the vibrating plate 11 and the screen 2 is provided with a buckle, and the other is provided with a card.
  • the vibrating plate 11 can be clipped to the screen 2.
  • the vibrator 12 is connected to the vibrating plate 11.
  • the vibrator 12 can be pasted on the surface of the vibrating plate 11; or the vibrator 12 can be clamped to the vibrating plate 11, wherein one of the vibrator 12 and the vibrating plate 11 is provided with a buckle, and the other is provided with a slot When the buckle is matched with the slot, the vibrator 12 can be clamped to the vibrating plate 11; or the vibrator 12 can be connected to the vibrating plate 11 by screws or other components.
  • the vibrator 12 and the screen 2 are located at both ends of the vibrating plate 11.
  • the vibrator 12 is the vibration source of the vibrating component 1, which can vibrate according to a certain law (for example, simple resonance), and when the vibrator 12 vibrates, it can drive the vibrating plate 11 connected to it to vibrate, thereby passing the vibrating plate 11 drives the screen 2 to vibrate and make a sound.
  • the vibrating plate 11 is provided with a protruding portion 111, and the protruding portion 111 protrudes from the vibrating plate 11 along the thickness direction Z of the electronic device, that is, the protruding portion 111 is perpendicular to The direction of the surface of the vibrating piece 11 extends.
  • the rigidity of the vibrating plate 11 can be increased, thereby increasing the natural frequency of the vibrating plate 11 itself.
  • the vibration frequency of the vibrating plate 11 reaches or approaches that of the vibrating plate 11 At the natural frequency, the vibrator 12 and the vibrating plate 11 resonate, so that the vibration of the vibrating plate 11 is greatly strengthened, thereby increasing the vibration intensity of the screen 2 and increasing the sounding loudness of the electronic device.
  • the natural frequency of the vibrating plate 11 increases, the frequency at which the vibrator 12 and the vibrating plate 11 resonate increases.
  • the vibration assembly 1 can increase the acoustic frequency response of the medium and high frequencies, thereby increasing the loudness of the call and improving the electronics.
  • the user experience of the device For example, under the same test conditions, the vibration component 1 can increase the acoustic frequency response with a frequency of 2.5 kHz to 4 kHz, and when the frequency is 4 kHz, it can increase by 2.5 dB compared with the solution without the protrusion.
  • Those skilled in the art can increase the vibration intensity of the vibrating plate by increasing the thickness of the vibrating plate.
  • the thickness of the vibrating plate increases, its weight and inertia increase, thereby increasing the vibration intensity of the vibrating plate.
  • the current development trend of electronic equipment is gradually becoming thinner and lighter, and the larger thickness of the vibrating plate is not conducive to the spatial arrangement of the components of the electronic equipment, and it is also not conducive to the lightness and thinness of the electronic equipment.
  • the electronic device in the embodiment of the present application does not need to increase the overall thickness of the vibrating plate 11, but by providing a protrusion 111 on the vibrating plate 11 to increase the rigidity of the vibrating plate 11, thereby improving the vibration intensity of the vibrating plate 11.
  • the raised portion 111 may be arranged at a position that does not interfere with other components of the electronic device. Therefore, when the vibrating plate 11 provided with the protrusion 111 is installed in an electronic device, the risk of interference with other components of the electronic device can be reduced, thereby facilitating the spatial arrangement of the components without significantly increasing the thickness of the electronic device, which helps Realize the lightness and thinness of electronic equipment.
  • the protrusions 111 in the embodiments of the present application can be arranged according to the installation positions of the components of the electronic device, so that the protrusions 111 avoid the electronic device along the thickness direction Z (the direction perpendicular to the surface of the screen 2).
  • the components of the electronic device avoid interference with the components of the electronic device, thereby increasing the sound intensity while reducing the overall thickness of the electronic device.
  • the size, shape, number, and position of the protrusions 111 in the embodiments of the present application may not be limited. That is, the vibrating plate 11 may be provided with one protrusion 111 or multiple protrusions 111. When multiple protrusions 111 are provided, the shape and size of the protrusions 111 may be the same or different, and the protrusions 111 may be evenly distributed or randomly distributed. In addition, the shape of the protrusion 111 may be the same or different, and may be a regular shape or an irregular shape, as long as the rigidity of the vibrating piece 11 can be improved.
  • the vibrating plate 11 may be provided with a plurality of protrusions 111, and the protrusions 111 are distributed at intervals, that is, between adjacent protrusions 111 There is a gap 112, wherein the gap 112 between the protrusions 111 can be the same or different.
  • the plurality of protrusions 111 distributed at intervals can be arranged according to the distribution of the internal components of the electronic device, so that the internal space of the electronic device can be reasonably utilized.
  • the rigidity of the vibrating plate 11 is different. High, the position where the resonant frequency of the vibrator 12 is high, therefore, this position can increase the loudness of the higher frequency band; at the same time, the position where the vibrating plate 11 is not provided with the convex portion 111 has low rigidity, and the position vibrates The self-oscillation frequency of the sheet 11 is low, and the frequency at which this position and the vibrator 12 vibrate is low. Therefore, this position can increase the sound of the lower frequency band.
  • the frequency band of the vibrating component 1 with higher loudness is wider.
  • multiple protrusions 111 may be arranged according to the positions of other components of the electronic device, so as to avoid interference between the protrusions 111 and various components of the electronic device.
  • the protrusions 111 can also be evenly distributed on the vibrating plate 11 and surround the vibrator 12. In the embodiment shown in FIG. 2, the gaps 112 between adjacent protrusions 111 are the same.
  • the protruding portion 111 when the protruding portion 111 surrounds the vibrator 12, the protruding portion 111 further increases the rigidity of the vibrating plate 11, thereby further increasing the vibration intensity of the vibrating assembly 1 and increasing the sound loudness of the screen.
  • the protrusions 111 when the protrusions 111 are uniformly distributed, the uniformity of the vibration of the vibrating plate 11 of the vibrating assembly 1 can be improved, thereby improving the uniformity of the screen sound, and improving the sound performance of the electronic device.
  • the plurality of protrusions 111 may be enclosed in a circular structure, may also be enclosed in a square structure, or may be enclosed in other shapes.
  • the specific shape of the protrusions 111 is not limited in this application.
  • a plurality of protrusions 111 are connected to form a ring structure.
  • the overall rigidity of the vibrating plate 11 is relatively high, and the rigidity of each position thereof is approximately the same, that is, the rigidity of the vibrating plate 11 at the position where the protrusions 111 are provided They are approximately the same, so that the natural frequencies of the vibrating piece 11 where the protrusions 111 are provided are approximately the same.
  • the vibrating piece 11 After the vibrating piece 11 is provided with the protrusion 111, the vibrating piece 11 has a higher rigidity and a higher natural frequency. Therefore, when the vibrating piece 11 and the vibrator 12 resonate, the loudness of the higher frequency band can be increased.
  • the ring structure can surround the vibrator 12, and the vibrator 12 is arranged at the center of the ring structure.
  • the vibrator 12 is located at the center of the structure surrounded by the plurality of protrusions 111.
  • the vibrator 12 is located at the center of the structure surrounded by the plurality of protrusions 111, so that the distance between the vibrator 12 and the protrusions 111 at each position is the same.
  • a plurality of protrusions 111 are connected to form a ring structure, so that the rigidity of each position of the vibrating plate 11 after the protrusions 111 is substantially the same, so that the sounding loudness of the vibrating assembly 1 in all directions Roughly the same, it improves the loudness of the sound from the electronic device in all directions, and improves the uniformity of the sound from the screen.
  • a plurality of spaced apart protrusions 111 surround the vibrator 12, which can improve the uniformity of the screen sound.
  • the protrusion 111 provided on the vibrating plate 11 may not surround the vibrator 12, that is, the protrusion 111 in the embodiment of the present application may be provided At any position of the vibrating piece 11, as long as the rigidity of the vibrating piece 11 can be increased.
  • the height h1 of the protrusion 111 extending perpendicular to the surface of the screen 2 is less than or equal to the height of the vibrator 12, that is, the convex
  • the edge of the raised portion 111 away from the vibrating plate 11 does not extend beyond the vibrator 12. Therefore, in this embodiment, the height h1 of the protrusion 111 in the vibration component 1 should not be too large, so as to facilitate the layout of the vibration component 1 in the electronic device and reduce the risk of interference between the protrusion 111 and other components of the electronic device.
  • the shape of the protrusion 111 can be a regular shape such as a circle, a square, a cone, or the like, or an irregular shape.
  • the specific shape of the protrusion 111 is not described in this application. limited.
  • the shape of the protrusion 111 is circular. As shown in FIG. 4, the shape of the protrusion 111 is a square.
  • the shape of the vibrating plate 11 in the vibrating assembly 1 may be a circle, a square or a polygon, and the specific shape of the vibrating plate 11 is not limited in the present application.
  • the shape of the vibrating plate 11 is circular. As shown in FIG. 5, the shape of the vibrating piece 11 is square. Of course, the vibrating plate 11 may also have other shapes such as a cone.
  • the vibrating plate 11 and the protrusion 111 of the vibrating assembly 1 are an integral structure.
  • the vibrating plate 11 and the protrusion 111 can be formed by stamping, casting or 3D printing. Those are connected as one.
  • the vibrating plate 11 and the protruding portion 111 can also be fixedly connected.
  • the protruding portion 111 can be welded to the vibrating plate 11, or the protruding portion 111 can also be fixed to the vibrating plate 11 by a connecting member such as a screw. Therefore, the present application does not limit the molding method of the vibrating plate 11 and the protrusion 111.
  • the material of the vibrating plate 11 can be metal or other materials with a large Young's modulus and a low density.
  • the material of the protrusion 111 is also metal, and the vibration plate 11 and the protrusion 111 are made of metal. The material can be the same or different.
  • the material of the vibrating plate 11 and the protrusion 111 may be aluminum alloy, magnesium alloy, or the like.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Telephone Set Structure (AREA)

Abstract

本申请实施例提供一种电子设备的振动组件和电子设备，所述振动组件包括：振动片，所述振动片用于与所述电子设备的屏幕连接；振子，所述振子与所述振动片连接，并能够振动；其中，所述振动片设置有凸起部，且所述凸起部沿所述电子设备的厚度方向凸出于所述振动片。无需增加振动片的整体厚度，而是通过在振动设置凸起部来增大振动片的刚度，从而提高振动片的振动强度，且该凸起部可以设置于不与电子设备的其他部件干涉的位置，因此，设置凸起部的振动片安装于电子设备时能够降低与其他部件干涉的风险，从而便于各部件的空间布置，且不会明显增大电子设备的厚度，有助于实现电子设备的轻薄化。

Description

一种电子设备的振动组件和电子设备
本申请要求于2020年02月25日提交中国专利局、申请号为202010117219.5、发明名称为“一种电子设备的振动组件和电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子设备技术领域，尤其涉及一种电子设备的振动组件和电子设备。
背景技术
在现有的电子设备中，其壳体内部设置有振动模块，且壳体设置有听筒出音孔，振动模块振动发出声音，并通过听筒出音孔传递至外界，用户贴近听筒出音孔时，声音能够传入用户的耳朵。但是，通过听筒出音孔传出的声音漏音较严重，不利于保护用户的隐私。同时，用户从听筒出音孔接收到的声音响度不够，无法听清。另外，脏污容易进入听筒出音孔，导致听筒出音孔堵塞而导致杂音。
申请内容
本申请提供了一种电子设备的振动组件和电子设备，该振动组件能够提高屏幕出声的响度。
本申请实施例第一方面提供一种电子设备的振动组件，所述振动组件包括：振动片，所述振动片用于与所述电子设备的屏幕连接；振子，所述振子与所述振动片连接，并能够振动；其中，所述振动片设置有凸起部，且所述凸起部沿垂直于所述振动片的表面的方向延伸。
本申请实施例中，无需增加振动片的整体厚度，而是通过在振动组件设 置凸起部来增大振动片的刚度，从而提高振动片的振动强度，且该凸起部可以设置于不与电子设备的其他部件干涉的位置，因此，设置凸起部的振动片安装于电子设备时能够降低与其他部件干涉的风险，从而便于各部件的空间布置，且不会明显增大电子设备的厚度，有助于实现电子设备的轻薄化。
在一种可能的设计中，述凸起部有多个，并呈间隔分布。本实施例中，间隔分布的多个凸起部能够根据电子设备内部各部件的分布情况布置，从而能够合理利用电子设备的内部空间。同时，多个凸起部间隔分布时，该振动组件响度较高的频段较宽。
在一种可能的设计中，多个所述凸起部均匀分布，并包围所述振子。本实施例中，当凸起部包围振子时，该凸起部使得该振动片的刚度进一步增大，从而进一步增大振动组件振动的强度，提高屏幕出声的声音响度。另外，凸起部均匀分布时，能够提高振动组件的振动片振动的均匀性，从而提高屏幕出声的均匀性，改善电子设备的发声性能。
在一种可能的设计中，多个所述凸起部连接形成环形结构。本实施例中，多个凸起部连接形成环形结构时，该振动片的整体刚度较高，且其各位置的刚度大致相同，即该振动片在设置凸起部位置的刚度大致相同，从而使得振动片设置凸起部的位置各处的自振频率大致相同。振动片设置凸起部后，该振动片的刚度较大，自振频率较高，因此，该振动片与振子发生共振时，能够增大频率较高的频段的响度。
在一种可能的设计中，所述环形结构包围所述振子，且所述振子位于所述环形结构的中心，使得振动片设置凸起部后各位置的刚度大致相同，从而使得振动组件各方向的发声响度大致相同，提高电子设备各方向出声的响度，并提高屏幕出声的均匀性。
在一种可能的设计中，沿垂直于所述振动片的表面的方向，所述凸起部延伸的高度h1小于或等于所述振子的高度h2，从而更加便于电子设备中振动组件的布局，降低凸起部与电子设备其他部件干涉的风险。
在一种可能的设计中，所述凸起部的形状为圆形、方形、锥形或不规则形。
在一种可能的设计中，所述振动片的形状为圆形、方形或多边形。
在一种可能的设计中，所述振动片与所述凸起部为一体式结构，或者，所述振动片与所述凸起部固定连接。
在一种可能的设计中，所述振动片的材质为金属，所述凸起部的材质为金属。
本申请实施例第二方面提供一种电子设备，所述电子设备包括：
壳体；
屏幕，所述屏幕安装于所述壳体；
振动组件，所述振动组件为以上所述的振动组件；
其中，所述振动组件安装于所述屏幕的表面。
在一种可能的设计中，所述振动片粘贴于所述屏幕的表面；或者，
所述振动片与所述屏幕中的一者设置有卡扣，另一者设置有卡槽，所述卡扣能够与所述卡槽配合。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本申请。
附图说明
图1为本申请所提供电子设备的屏幕与振动组件在第一种具体实施例中的结构示意图；
图2为本申请所提供电子设备的屏幕与振动组件在第二种具体实施例中的结构示意图；
图3为本申请所提供电子设备的屏幕与振动组件在第三种具体实施例中的结构示意图；
图4为本申请所提供电子设备的屏幕与振动组件在第四种具体实施例中 的结构示意图；
图5为本申请所提供电子设备的屏幕与振动组件在第五种具体实施例中的结构示意图；
图6为图3的侧视图。
附图标记：
1-振动组件；
11-振动片；
111-凸起部；
112-间隙；
12-振子；
2-屏幕。
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。
具体实施方式
为了更好的理解本申请的技术方案，下面结合附图对本申请实施例进行详细描述。
应当明确，所描述的实施例仅仅是本申请一部分实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
在一种具体实施例中，下面通过具体的实施例并结合附图对本申请做进一步的详细描述。
电子设备逐渐取消了原有的听筒出音孔，即该电子设备不再采用听筒出音孔出声，而是采用屏幕发声的方式出声。屏幕发声通常通过将振子粘贴于屏幕上实现，振子振动过程中，能够带动屏幕振动，屏幕振动发出声音。当用户耳朵贴近屏幕时，屏幕振动发出的声音能够清晰地传入用户的耳朵，且漏音较小，对用户的隐私保护更强。另外，取消听筒出音孔也能够避免由于脏污堵塞听筒出音孔导致杂音。
但是，对于上述将振子粘贴于屏幕的方式，由于振子的面积较小，其振动所引起的屏幕振动的面积也较小，声波传出时的振幅较小，声音响度较低，影响用户的使用体验。
为了提高声音的响度，可以在屏幕上粘贴面积大于振子面积的振动片，并将振子粘贴于振动片。振子振动过程中，首先带动振动片振动，振动片振动带动屏幕振动。由于振动片的面积大于振子的面积，因此，能够增大振动面积，提高声波传出时的振幅，并提高声音的响度。
但是，受电子设备整机结构的限制，振动片的面积或厚度无法进一步被增大，使得声波传出时的振幅无法进一步增大，导致用户在嘈杂的环境中使用时仍然存在声音过小的问题。
为了解决上述技术问题，本申请实施例提供一种电子设备，电子设备可以是手机、平板电脑、桌面型计算机、膝上型计算机、手持计算机、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本，以及蜂窝电话、个人数字助理(personal digital assistant，PDA)、增强现实(augmented reality，AR)设备、虚拟现实(virtual reality，VR)设备、人工智能(artificial intelligence,AI)设备、可穿戴式设备、车载设备、智能家居设备和/或智慧城市设备，本申请实施例对该电子设备的具体类型不作特殊限制。
其中，电子设备可以包括屏幕2、电路板、电池、音频模块、扬声器、受话器、麦克风等部件。其中，屏幕2用于显示图像，视频等。在一些实施例中， 电子设备可以包括1个或N个屏幕2，N为大于1的正整数。电子设备可以通过音频模块，扬声器，受话器等部件实现音频功能。例如音乐播放，录音等。其中，音频模块用于将数字音频信息转换成模拟音频信号输出，也用于将模拟音频输入转换为数字音频信号。音频模块还可以用于对音频信号编码和解码。在一些实施例中，音频模块可以设置于处理器中，或将音频模块的部分功能模块设置于处理器中。
扬声器也称“喇叭”，用于将音频电信号转换为声音信号。电子设备可以通过扬声器收听音乐，或收听免提通话。受话器也称“听筒”，用于将音频电信号转换成声音信号。当电子设备接听电话或语音信息时，可以通过将受话器靠近人耳接听语音。
另外，电子设备的上述各部件中，至少部分安装于电子设备的壳体。同时，该电子设备还包括用于发出声音的振动组件1，如图1所示，该振动组件1安装于电子设备的屏幕2，当振动组件1振动时，能够带动屏幕2振动，产生音频信号，并经扬声器将音频信号转换为声音信号。
其中，该振动组件1可以粘贴于屏幕2，还可以卡接于屏幕2。更具体地，振动组件1与屏幕2中的一者可以设置有卡扣，另一者可以设置有卡槽，该卡扣与卡槽配合时，能够将振动组件1卡接于屏幕2。具体地，如图1～6所示，该振动组件1包括振动片11和振子12，其中，该振动片11用于与电子设备的屏幕2连接。具体可以将振动片11粘贴于屏幕2的表面；或者还可以将振动片11卡接于屏幕2，其中，该振动片11与屏幕2中的一者设置有卡扣，另一者设置有卡槽，卡扣与卡槽配合时，能够将振动片11卡接于屏幕2。同时，振子12与振动片11连接。具体可以将振子12粘贴于振动片11的表面；或者可以将振子12卡接于振动片11，其中，该振子12与振动片11中的一者设置有卡扣，另一者设置有卡槽，当卡扣与卡槽配合时，能够将振子12卡接于振动片11；又或者可以将振子12通过螺钉等部件连接于振动片11。
因此，如图6所示，沿屏幕2的厚度方向Z(垂直于屏幕2的表面的方向)， 振子12和屏幕2位于振动片11的两端。该电子设备中，振子12为振动组件1的振源，其能够按一定规律振动(例如简谐振动)，且当该振子12振动时，能够带动与其连接的振动片11振动，从而通过振动片11带动屏幕2振动，发出声音。其中，如图1～6所示，该振动片11设置有凸起部111，且该凸起部111沿电子设备的厚度方向Z凸出于振动片11，即该凸起部111沿垂直于振动片11的表面的方向延伸。
本实施例中，该振动片11设置凸起部111后，振动片11的刚度能够增大，从而增大振动片11本身的自振频率，当振子12的振动频率达到或接近振动片11的自振频率时，振子12与振动片11发生共振，使得振动片11的振动大大加强，从而提高屏幕2的振动强度，增大电子设备的发声响度。同时，由于振动片11的自振频率增大，振子12与振动片11发生共振的频率增大，因此，该振动组件1能够增大中高频的声学频响，从而增大通话响度，改善电子设备的用户体验。例如，相同测试条件下，该振动组件1能够增大频率为2.5kHz-4kHz的声学频响，且在频率为4kHz时，与不设置凸起部的方案相比，能够提升2.5dB。
本领域技术人员可以通过增大振动片的厚度来增大振动片的振动强度，当振动片的厚度增大时，其重量增大，惯性增大，从而增大振动片的振动强度。但是，目前电子设备的发展趋势是逐渐轻薄化，厚度较大的振动片不利于电子设备各部件的空间布置，也不利于电子设备的轻薄化。
本申请实施例中的电子设备无需增加振动片11的整体厚度，而是通过在振动片11设置凸起部111来增大振动片11的刚度，从而提高振动片11的振动强度。且该凸起部111可以设置于不与电子设备的其他部件干涉的位置。因此，设置凸起部111的振动片11安装于电子设备时能够降低与电子设备的其他部件干涉的风险，从而便于各部件的空间布置，且不会明显增大电子设备的厚度，有助于实现电子设备的轻薄化。
需要说明的是，本申请实施例中的凸起部111可以根据电子设备各部件的 安装位置布置，从而使得凸起部111沿厚度方向Z(垂直于屏幕2的表面的方向)避开电子设备的各部件，避免与电子设备的各部件干涉，从而在增大发声强度的同时，减小电子设备的整体厚度。
另外，本申请实施例中的凸起部111的大小、形状、个数和位置可以不做限定，即该振动片11可以设置一个凸起部111，也可以设置多个凸起部111。当设置多个凸起部111时，各凸起部111的形状和大小可以相同，也可以不同，各凸起部111可以均匀分布，也可以随机分布。另外，凸起部111的形状可以相同，也可以不同，可以为规则形状，也可以为不规则形状，只要能够提高振动片11的刚度即可。
在一种具体实施例中，如图1和图2所示，该振动片11可以设置有多个凸起部111，且各凸起部111呈间隔分布，即相邻凸起部111之间具有间隙112，其中，各凸起部111之间的间隙112可以相同，也可以不同。
本实施例中，间隔分布的多个凸起部111能够根据电子设备内部各部件的分布情况布置，从而能够合理利用电子设备的内部空间。同时，振动片11设置多个间隔分布的凸起部111后，使得振动片11各处的刚度不同，即振动片11设置凸起部111的位置刚度较大，且该位置的自振频率较高，该位置与振子12发生共振的频率较高，因此，该位置能够增大频率较高的频段的响度；同时，振动片11未设置凸起部111的位置刚度较小，且该位置振动片11的自振频率较低，该位置与振子12发生振动时的频率较低，因此，该位置能够增大频率较低的频段的响。综上所述，本实施例中，多个凸起部11间隔分布时，该振动组件1响度较高的频段较宽。
具体地，如图1所示，多个凸起部111可以根据电子设备其他部件的位置布置，从而避免凸起部111与电子设备的各部件发生干涉。
如图2所示，各凸起部111也可以均匀分布于振动片11，并包围振子12，如图2所述的实施例中，相邻凸起部111之间的间隙112相同。
本实施例中，当凸起部111包围振子12时，该凸起部111使得该振动片11 的刚度进一步增大，从而进一步增大振动组件1振动的强度，提高屏幕出声的声音响度。另外，凸起部111均匀分布时，能够提高振动组件1的振动片11振动的均匀性，从而提高屏幕出声的均匀性，改善电子设备的发声性能。
其中，如图2所示，多个凸起部111可以围成圆形结构，也可以围成方形结构，或者围成其他形状，本申请对凸起部111的具体形状不做限定。
在另一种具体实施例中，如图3～5所示，该振动片11中，多个凸起部111连接形成环形结构。
本实施例中，多个凸起部111连接形成环形结构时，该振动片11的整体刚度较高，且其各位置的刚度大致相同，即该振动片11在设置凸起部111位置的刚度大致相同，从而使得振动片11设置凸起部111的位置各处的自振频率大致相同。振动片11设置凸起部111后，该振动片11的刚度较大，自振频率较高，因此，该振动片11与振子12发生共振时，能够增大频率较高的频段的响度。
另外，多个凸起部111连接形成环形结构时，能够便于加工，且能够提高该振动片11的强度，从而提高振动组件1和电子设备的使用寿命。
具体地，如图3～5所示的实施例中，多个凸起部111连接形成环形结构时，该环形结构能够包围振子12，且该振子12设置于环形结构的中心。如图2所示的实施例中，多个间隔分布的凸起部111包围振子12时，该振子12位于多个凸起部111围成的结构的中心。
本实施例中，振子12位于多个凸起部111围成的结构的中心，使得振子12与各位置的凸起部111之间的距离相同。具体地，如图3～5所示，多个凸起部111连接形成环形结构，使得振动片11设置凸起部111后各位置的刚度大致相同，从而使得振动组件1各方向的发声响度大致相同，提高电子设备各方向出声的响度，并提高屏幕出声的均匀性。如图2所示，多个间隔分布的凸起部111包围振子12，能够提高屏幕出声的均匀性。
在另一种具体实施例中，如图1所示，该振动组件1中，设置于振动片11的凸起部111也可不包围振子12，即本申请实施例中的凸起部111可以设置于 振动片11的任意位置，只要能够增大振动片11的刚度即可。
更具体地，如图6所示，该振动组件1中，沿垂直于屏幕2的表面的方向，凸起部111垂直于屏幕2的表面延伸的高度h1小于或等于振子12的高度，即凸起部111远离振动片11的边缘不超出振子12。因此，本实施例中，该振动组件1中凸起部111的高度h1不应过大，从而更加便于电子设备中振动组件1的布局，降低凸起部111与电子设备其他部件干涉的风险。
以上各实施例中，该振动组件1中，凸起部111的形状可以为圆形、方形、锥形等规则形状，也可以为不规则形状，本申请对凸起部111的具体形状不做限定。
如图3所示，该凸起部111的形状为圆形。如图4所示，该凸起部111的形状为方形。
另一方面，以上各实施例中，该振动组件1中，振动片11的形状可以为圆形、方形或多边形，本申请对振动片11的具体形状不做限定。
如图1～4所示的实施例中，该振动片11的形状为圆形。如图5所示，该振动片11的形状为方形。当然，该振动片11还可为锥形等其他形状。
在一种具体实施例中，该振动组件1的振动片11与凸起部111为一体式结构，例如，即该振动片11与凸起部111可以通过冲压、铸造或3D打印的方式将二者连接为一体。或者，振动片11与凸起部111也可以固定连接，例如，凸起部111可以焊接于振动片11，或者，凸起部111也可以通过螺钉等连接件固定于振动片11。因此，本申请对振动片11与凸起部111的成型方式不做限定。
具体地，该振动片11的材质可以为金属，也可以为其他杨氏模量大、密度较小的材质，凸起部111的材质也为金属，且该振动片11与凸起部111的材质可以相同，也可以不同。
例如，该振动片11和凸起部111的材质均可以为铝合金、镁合金等。
需要指出的是，本专利申请文件的一部分包含受著作权保护的内容。除了对专利局的专利文件或记录的专利文档内容制作副本以外，著作权人保留 著作权。

Claims (12)

  1. 一种电子设备的振动组件，其特征在于，所述振动组件包括：
    振动片，所述振动片用于与所述电子设备的屏幕连接；
    振子，所述振子与所述振动片连接，并能够振动；
    其中，所述振动片设置有凸起部，且所述凸起部沿垂直于所述振动片的表面的方向延伸。
  2. 根据权利要求1所述的振动组件，其特征在于，所述凸起部有多个，并呈间隔分布。
  3. 根据权利要求2所述的振动组件，其特征在于，多个所述凸起部均匀分布，并包围所述振子。
  4. 根据权利要求1所述的振动组件，其特征在于，多个所述凸起部连接形成环形结构。
  5. 根据权利要求4所述的振动组件，其特征在于，所述环形结构包围所述振子，且所述振子位于所述环形结构的中心。
  6. 根据权利要求1～5中任一项所述的振动组件，其特征在于，沿垂直于所述振动片的表面的方向，所述凸起部延伸的高度h1小于或等于所述振子的高度h2。
  7. 根据权利要求1～5中任一项所述的振动组件，其特征在于，所述凸起部的形状为圆形、方形、锥形或不规则形。
  8. 根据权利要求1～5中任一项所述的振动组件，其特征在于，所述振动片的形状为圆形、方形或多边形。
  9. 根据权利要求1～5中任一项所述的振动组件，其特征在于，所述振动片与所述凸起部为一体式结构，或者，所述振动片与所述凸起部固定连接。
  10. 根据权利要求1～5中任一项所述的振动组件，其特征在于，所述振动 片的材质为金属，所述凸起部的材质为金属。
  11. 一种电子设备，其特征在于，所述电子设备包括：
    壳体；
    屏幕，所述屏幕安装于所述壳体；
    振动组件，所述振动组件为权利要求1～10中任一项所述的振动组件；
    其中，所述振动组件安装于所述屏幕的表面。
  12. 根据权利要求11所述的电子设备，其特征在于，所述振动片粘贴于所述屏幕的表面；或者，
    所述振动片与所述屏幕中的一者设置有卡扣，另一者设置有卡槽，所述卡扣能够与所述卡槽配合。
PCT/CN2020/128320 2020-02-25 2020-11-12 一种电子设备的振动组件和电子设备 WO2021169410A1 (zh)

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CN203675319U (zh) * 2013-12-06 2014-06-25 瑞声科技（南京）有限公司 电子装置
CN204681585U (zh) * 2015-06-12 2015-09-30 西安康弘新材料科技有限公司 一种用于骨传导受话器听觉装置的压电振子
US20160219372A1 (en) * 2015-01-26 2016-07-28 AAC Technologies Pte. Ltd. Vibration speaker
CN206402446U (zh) * 2017-01-20 2017-08-11 苏州攀特电陶科技股份有限公司 压电式屏幕发声装置
CN206442520U (zh) * 2017-02-16 2017-08-25 苏州攀特电陶科技股份有限公司 压电式屏幕发声器件
CN207460497U (zh) * 2017-11-07 2018-06-05 苏州攀特电陶科技股份有限公司 压电式平板发声器件

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CN203675319U (zh) * 2013-12-06 2014-06-25 瑞声科技（南京）有限公司 电子装置
US20160219372A1 (en) * 2015-01-26 2016-07-28 AAC Technologies Pte. Ltd. Vibration speaker
CN204681585U (zh) * 2015-06-12 2015-09-30 西安康弘新材料科技有限公司 一种用于骨传导受话器听觉装置的压电振子
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