WO2021109560A1 - 一种用于电子产品的振动发声装置及电子产品 - Google Patents

一种用于电子产品的振动发声装置及电子产品 Download PDF

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Publication number
WO2021109560A1
WO2021109560A1 PCT/CN2020/099535 CN2020099535W WO2021109560A1 WO 2021109560 A1 WO2021109560 A1 WO 2021109560A1 CN 2020099535 W CN2020099535 W CN 2020099535W WO 2021109560 A1 WO2021109560 A1 WO 2021109560A1
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WIPO (PCT)
Prior art keywords
magnet
housing
magnetic
magnetic component
vibration
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PCT/CN2020/099535
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English (en)
French (fr)
Inventor
朱跃光
毛东升
史德璋
王永强
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歌尔股份有限公司
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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Priority to US17/781,802 priority Critical patent/US11979725B2/en
Publication of WO2021109560A1 publication Critical patent/WO2021109560A1/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the present invention relates to the technical field of sound generating devices, in particular, the present invention relates to a vibration and sound generating device used for electronic products and electronic products.
  • the traditional realization of the earpiece function under the condition of no opening on the screen mainly relies on an exciter to complete.
  • the existing exciter usually includes a basin frame, a magnet, and a coil.
  • the structure is simple, easy to produce, and has high development prospects and practical value.
  • traditional exciters need to consider the consistency of the resonant frequency of the exciter itself and the resonant frequency of the electronic product, resulting in low sensitivity and poor listening experience.
  • An object of the present invention is to provide a vibration and sound device for electronic products and electronic products.
  • a vibration and sound device for electronic products including:
  • a first housing the first housing has an opening on one side to form a cavity
  • the magnetic component includes a first magnetic component and a second magnetic component, the first magnetic component includes a first magnet and a third magnet, and the second magnetic component includes a second magnet and a fourth magnet.
  • the first magnetic component and the second magnetic component are respectively arranged on opposite side walls in the first housing, the magnetizing direction of the first magnet and the second magnet are the same and along the arrangement direction, the third magnet and The magnetization direction of the fourth magnet is the same and along its arrangement direction, the magnetization direction of the first magnet is opposite to the magnetization direction of the third magnet, and the first magnet, the second magnet, the third magnet and the first magnet Four magnets form a closed magnetic circuit;
  • a coil assembly and a second housing the coil assembly is connected to the second housing and penetrates into the first channel along its radial direction;
  • the second housing is movably connected with the magnetic component.
  • the second housing further includes a plurality of elastic pieces, and the plurality of elastic pieces are arranged corresponding to the magnetic component and connected to the magnetic component.
  • the elastic piece is disposed obliquely on the second housing, and one end of the elastic piece close to the second housing is connected to the second housing, and the elastic piece is away from the second housing.
  • One end is set as a plane parallel to the second housing, and the plane is connected to the magnetic component.
  • a boss supporting the coil assembly is provided on the second housing.
  • the elastic sheet and the second shell are welded or integrally formed.
  • the first magnet, the second magnet, the third magnet, and the fourth magnet of the magnetic assembly are symmetrically arranged along the coil assembly.
  • the distance between the third magnet and the first magnet is greater than the distance between the third magnet or the first magnet and the coil assembly.
  • the magnetization directions of the first magnet and the second magnet are perpendicular to the radial direction of the coil assembly.
  • the vibration and sound device further includes a washer, the washer is disposed between the first housing and the magnetic component, and between the magnetic components on the same side wall of the first housing Connect through the washer.
  • an electronic product including:
  • a first surface and a second surface, the first surface is connected to the electronic product in a vibrable form
  • the first housing is arranged on the first surface, and the second housing is arranged on the second surface;
  • the first housing is provided on the second surface, and the second housing is provided on the first surface;
  • the vibration and sound device is configured to drive the first surface to vibrate and sound relative to the second surface.
  • the invention discloses a vibration and sound device for electronic products and an electronic product.
  • the vibration and sound device includes a first casing, a magnetic component, a coil component and a second casing.
  • the invention combines the magnetic component and the coil
  • the nested form of component composition reduces the overall height of the vibration and sound device, improves space utilization and assembly accuracy, and provides sufficient space for use of electronic equipment.
  • Figure 1 is an exploded view of a vibrating and sounding device of the present invention
  • Figure 2 is a schematic structural diagram of a vibrating and sounding device of the present invention (excluding the first housing);
  • Figure 3 is a side view of a vibrating and sounding device of the present invention.
  • Figure 4 is a schematic cross-sectional view of a vibrating and sounding device of the present invention.
  • Figure 5 is a schematic cross-sectional view of another vibrating and sounding device of the present invention.
  • Figure 6 is a schematic diagram of a vibration and sound device of the present invention applied to an electronic product
  • Fig. 7 is an enlarged view of A in Fig. 6 of the present invention.
  • 100-vibration and sound device 100-vibration and sound device; 1-first housing; 2-magnetic component; 21-first magnet; 22-second magnet; 23-third magnet; 24-fourth magnet; 3-coil assembly; 4 -Second housing; 41- shrapnel; 42- boss; 5- washer; 6- first through hole; 200- first surface; 300- second surface.
  • the present invention discloses a vibration and sound device 100 for electronic products, including:
  • the first magnetic component includes a first magnet 21 and a third magnet 23, the second magnetic component includes a second magnet 22 and a fourth magnet 24, and the first magnetic component and the second magnetic component are respectively disposed on the
  • the magnetization directions of the first magnet 21 and the second magnet 22 are the same and along their arrangement direction, and the magnetization directions of the third magnet 23 and the fourth magnet 24 are the same
  • the magnetizing direction of the first magnet 21 is opposite to the magnetizing direction of the third magnet 23, and the first magnet 21, the second magnet 22, the third magnet 23, and the fourth magnet 24
  • a closed magnetic circuit is formed; a first channel is left between the first magnetic component and the second magnetic component; the coil component 3 is connected to the second housing 4 and penetrates the first magnetic component along its radial direction. In a channel; the second housing
  • the magnetization directions of the first magnet 21 and the second magnet 22 are the same and are along the arrangement direction, that is, the magnetic field lines of the first magnet 21 and the second magnet 22 will pass through the coil in the first channel Component 3, at this time, the magnetic component 2 and the coil component 3 will generate an interaction force.
  • the magnetization direction of the third magnet 23 and the fourth magnet 24 are the same and along the arrangement direction,
  • the magnetizing direction of the first magnet 21 is opposite to the magnetizing direction of the third magnet 23, so that the first magnet 21, the second magnet 22, the third magnet 23 and the fourth magnet 24 form a closed
  • the magnetic circuit jointly drives the electronic products connected to the vibration and sound device 100 to emit sound.
  • the magnetic component 2 and the coil component 3 are formed into a nested form, which reduces the overall height of the vibrating and sounding device 100, has a high space utilization rate, and provides sufficient utilization space for electronic equipment.
  • the second housing 4 and the magnetic assembly 2 can be movably connected, which composes the vibration and sound device 100 into an integrated vibration and sound device.
  • the integrated mechanism reduces the difficulty of the assembly process.
  • the relative position between the first housing 1 covered with the magnetic assembly 2 and the second housing 4 fixedly connected with the coil assembly 3 is ensured, which improves the assembly accuracy of the entire vibrating and sounding device 100.
  • the first magnet 21 and the second magnet 22 are symmetrically arranged on both sides of the coil assembly 3.
  • the magnetization of the first magnet 21 and the second magnet 22 The directions are horizontal to the right, the left is the N pole, and the right is the S pole.
  • the third magnet 23 and the fourth magnet 24 are symmetrically arranged on both sides of the coil assembly 3.
  • the third magnet 23 and the second magnet The magnetizing directions of the four magnets 24 are horizontal to the left, on the left are S poles, and on the right are N poles; after the coil assembly 3 is energized, the coil assembly 3 will be vertically downward or vertical.
  • the upward force, whether the direction of the force is downward or upward, needs to be determined according to the current direction of the coil assembly 3. This can directly drive the electronic product to produce sound through the coil assembly 3, and adjust the vibration according to the magnitude and direction of the current In terms of size and direction, the utilization efficiency of magnetic lines in this mode is high, the power is strong, and it provides better sound quality of electronic products.
  • the present invention uses four magnets to form four magnetic circuits.
  • the four magnets are all magnetized along their arrangement direction, and the magnetization directions of the third magnet 23 and the fourth magnet 24 are the same as those of the first magnet 21 and the second magnet.
  • the magnetizing directions of the two magnets 22 are opposite, so that the four magnetic circuits form a closed loop through the magnetic conductive material, forming a strong force between the magnetic assembly 2 and the coil assembly 3, and the magnetic circuit structure is simple.
  • the assembly difficulty is relatively low.
  • the coil assembly 3 may be a vertical coil, the vertical coil is glued to the surface of the second housing 4, and the coil assembly 3 penetrates the first magnet 21 And the second magnet 22 in the first passage.
  • the second housing 4 further includes a plurality of elastic pieces 41, and the plurality of elastic pieces 41 are arranged corresponding to the magnetic component 2 and connected to the magnetic component 2.
  • the number of the elastic pieces 41 can be two, three, four or more, as long as they can play a role in connecting the magnetic component 2 well.
  • the number of the elastic pieces 41 is two, which are respectively disposed under the magnetic components 2 on both sides of the first housing 1, and the elastic pieces 41 are obliquely arranged on the second housing.
  • the end of the elastic piece 41 close to the second housing 4 is connected to the second housing 4, and the end of the elastic piece 41 away from the second housing 4 is arranged to be connected to the second housing 4
  • the plane of the body 4 is parallel, and the plane is connected to the magnetic component 2.
  • the second housing 4 is provided with a boss 42 for supporting the coil assembly 3.
  • the boss 42 may be in the shape of a figure or an I-shape, as long as it can support the coil assembly 3. The effect can be. Since a plurality of elastic pieces 41 are provided on the second housing 4, the elastic pieces 41 have a certain height, so that the magnetic assembly 2 and the second housing are separated by a certain distance.
  • the second housing 4 is provided with a boss 42 supporting the coil component 3, and the height of the boss 42 can be relatively close to the height of the elastic piece 41, It can also be the same. In this way, it can be ensured that the coil assembly 3 and the magnetic assembly 2 are at the same or close to the same level, and the efficiency of the interaction between the coil assembly 3 and the magnetic assembly 2 is improved.
  • both the elastic sheet 41 and the second housing 4 are welded or integrally formed.
  • both the elastic sheet 41 and the second housing 4 can be made of a metal material with higher strength, and the materials of the two can be similar or the same. In this way, the elastic sheet 41 and the second housing 4 can be connected by welding, which ensures the structural strength and improves the reliability of the connection.
  • the material of the elastic sheet 41 and the second housing 4 are the same, they can be the same metal or the same plastic, or a mixture of multiple metal materials or multiple plastics. Material, as long as the material of the elastic piece 41 and the second housing 4 are the same, the two can be formed integrally, which can not only improve the gap between the elastic piece 41 and the second housing 4 The connection strength can also simplify the production and assembly process of the vibration and sound device 100.
  • the elastic sheet 41 may be made of a metal material with higher strength, so that the elastic sheet 41 can be welded to the elastic sheet 41 by welding.
  • the magnetic components 2 are connected to ensure the structural strength and improve the reliability of the connection.
  • the elastic piece 41 is made of plastic material or a metal material that cannot be welded to the magnetic component 2, and the elastic piece 41 is connected to the magnetic component 2.
  • the components 2 can be connected by bonding, which is simple to operate and low in cost.
  • the first magnet 21, the second magnet 22, the third magnet 23 and the fourth magnet 24 of the magnetic assembly 2 are arranged symmetrically along the coil assembly 3.
  • the first magnet 21 and the third magnet 23 and the second magnet 22 and the fourth magnet 24 are arranged symmetrically along the radial direction of the coil assembly 3, and the first magnet 21 and the second magnet 22 are arranged symmetrically with each other.
  • the third magnet 23 and the fourth magnet 24 are arranged symmetrically along the axis of the coil assembly 3, so that two long magnets are symmetrical up and down, and left and right. They not only form a complete magnetic circuit, but also under symmetrical conditions, the magnetic lines of force and the The coil assembly 3 is vertical, the utilization rate of the magnetic lines of induction is high, and the force between the magnetic assembly 2 and the coil assembly 3 is stronger.
  • the distance a between the third magnet 23 and the first magnet 21 is greater than the distance between the third magnet 23 or the first magnet 21 and the coil assembly 3 b. Since a complete magnetic circuit is formed between the first magnet 21 and the second magnet 22 and the third magnet 23 and the fourth magnet 24, when a is greater than b, the first magnet 21 is taken as an example.
  • the force between a magnet 21 and the coil assembly 3 is greater than the force between the first magnet 21 and the third magnet 23, and the lines of magnetic force generated by the first magnet 21 are easier to penetrate. Through the coil assembly 3, a strong interaction force is generated with the coil assembly 3, which ensures the integrity and stability of the magnetic circuit.
  • the magnetizing directions of the first magnet 21 and the second magnet 22 are perpendicular to the radial direction of the coil assembly 3.
  • the first magnet 21 and the second magnet 22 are arranged on both sides of the coil assembly 3 and have the same magnetizing direction, so that the magnetic lines of induction generated by the first magnet 21 and the second magnet 22 will pass through The coil assembly 3.
  • the first magnet 21 and the second magnet 22 are arranged one above the other, the magnetic lines of induction of the first magnet 21 and the second magnet 22 will pass through the coil assembly along their arrangement direction. 3.
  • the material of the first housing 1 may be a magnetically conductive material or a non-magnetically conductive material.
  • the material of the first housing 1 is a magnetically permeable material, and the arrangement of the magnetically permeable material can connect the magnetic components 2 on the same side, and the coil component 3 is formed in the middle. Complete circuit.
  • the material of the first housing 1 is a non-magnetic material
  • the vibration and sound device 100 further includes a washer 5, and the washer 5 is disposed on the first housing 1. Between the magnetic component 2 and the magnetic component 2 on the same side wall of the first housing 1, the washer 5 is connected to each other. If the magnetic components 2 on the same side are connected by the washer 5, it is possible to avoid setting the entire first housing 1 as a magnetically conductive material, and prevent the first housing 1 from interacting with the vibration and sound device.
  • the 100 is closed to ensure that the magnetic circuit is not interfered by excess magnetic materials, and the stability of the magnetic circuit is improved.
  • a first through hole 6 is provided on the side of the first housing 1 away from the second housing 4, and the first through hole 6 is arranged opposite to the coil assembly 3. Since the magnetic component 2 and the coil component 3 are nested inside the first housing 1, but a sufficient magnetic gap must be maintained between the two at all times, the setting of the first through hole 6 can be very convenient Check the magnetic gap between the magnetic component 2 and the coil component 3 in time, and find the gap problem in time and adjust it in time, which improves the efficiency and service life of the vibrating and sounding device 100.
  • the present invention also discloses an electronic product, including:
  • a first surface 200 and a second surface 300, the first surface 200 is connected to the electronic product in a vibrable form;
  • the first housing 1 of the vibration and sound device 100 is arranged on the first surface 200, and the second housing 4 of the vibration and sound device 100 is arranged on the second surface 300 on;
  • the first housing 1 of the vibration and sound device 100 is arranged on the second surface 300, and the second housing 4 of the vibration and sound device 100 is arranged on the first surface 200;
  • the vibration and sound device 100 is configured to drive the first surface 200 to vibrate and generate sound relative to the second surface 300, thereby providing the electronic product with good sound quality.
  • the first housing 1 may be adhered to the surface of the first surface 200, or embedded in the first surface 200, as long as sufficient connection strength can be ensured.
  • the first surface 200 may be a screen of the electronic product
  • the second surface 300 may be a middle frame or a PCB board of the electronic product.
  • the electronic product includes one of a mobile phone, a tablet computer, an e-book reader, an MP3 player, an MP4 player, a computer, a set-top box, a smart TV, and a wearable device.
  • the vibrating and sounding device 100 is applied to an electronic product, and the first housing 1 of the vibrating and sounding device 100 is disposed on the second surface 300, so The second housing 4 of the vibrating and sounding device 100 is arranged on the first surface 200, and the magnetic assembly 2 in the first housing 1 and the coil assembly 3 in the second housing 4 produce powerful The interaction force directly drives the first surface 200 to vibrate and produce sound through the second shell 4.

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

Abstract

本发明公开了一种用于电子产品的振动发声装置及电子产品，该振动发声装置包括第一壳体、磁性组件、线圈组件和第二壳体，所述第一壳体一侧开口形成空腔，所述第一壳体内的磁性组件和所述第二壳体上的线圈组件之间产生相互作用力来带动所述振动发声装置振动发声，本发明将所述磁性组件和所述线圈组件组成嵌套的形式，降低了振动发声装置整体的高度，提高了空间利用率和装配精度，给电子设备提供了足够的利用空间。

Description

一种用于电子产品的振动发声装置及电子产品 技术领域
本发明涉及发声装置技术领域，具体地，本发明涉及一种用于电子产品的振动发声装置及电子产品。
背景技术
随着5G时代的来临，人们在追求极致网络体验的同时，对电子设备真正全面屏的期待也愈发高涨。而如何在屏幕无开孔情况下实现听筒的功能，同时具备更好的听感体验，是当前面临的技术难题。
目前传统的在屏幕无开孔情况下实现听筒功能主要依靠激励器来完成，现有的激励器通常包括盆架、磁铁和线圈。结构简单，易于生产，具有很高的发展前景及实用价值，但传统的激励器需要考虑激励器本身的谐振频率和电子产品谐振频率的一致性，导致灵敏度不高，听感体验较差。
发明内容
本发明的一个目的是提供一种用于电子产品的振动发声装置及电子产品。
根据本发明的第一方面，提供了一种用于电子产品的振动发声装置，包括：
第一壳体，所述第一壳体一侧开口形成空腔；
磁性组件，所述磁性组件包括第一磁性组件和第二磁性组件，所述第一磁性组件包括第一磁铁和第三磁铁，所述第二磁性组件包括第二磁铁和第四磁铁，所述第一磁性组件和第二磁性组件分别设置于所述第一壳体内相对的侧壁上，所述第一磁铁和第二磁铁的充磁方向相同且沿其排列方向，所述第三磁铁和第四磁铁的充磁方向相同且沿其排列方向，所述第一磁铁的充磁方向与所述第三磁铁的充磁方向相反，所述第一磁铁、第二磁铁、 第三磁铁和第四磁铁组成闭合磁回路；
所述第一磁性组件和所述第二磁性组件之间留出第一通道；
线圈组件和第二壳体，所述线圈组件与所述第二壳体连接并沿其径向穿入所述第一通道内；
所述第二壳体与所述磁性组件可活动连接。
可选地，所述第二壳体还包括多个弹片，多个所述弹片与所述磁性组件对应设置并连接至所述磁性组件。
可选地，所述弹片倾斜设置在所述第二壳体上，所述弹片靠近所述第二壳体的一端与所述第二壳体连接，所述弹片远离所述第二壳体的一端设置为与所述第二壳体平行的平面，所述平面与所述磁性组件连接。
可选地，所述第二壳体上设置有支撑所述线圈组件的凸台。
可选地，所述弹片与所述第二壳体之间采用焊接或者一体成型。
可选地，所述磁性组件的第一磁铁、第二磁铁、第三磁铁和第四磁铁沿所述线圈组件对称布置。
可选地，所述第三磁铁和所述第一磁铁之间的距离大于所述第三磁铁或所述第一磁铁与所述线圈组件之间的距离。
可选地，所述第一磁铁和第二磁铁的充磁方向与所述线圈组件的径向垂直。
可选地，所述振动发声装置还包括华司，所述华司设置于所述第一壳体和所述磁性组件之间，所述第一壳体同一侧壁上的的磁性组件之间通过所述华司连接。
根据本发明的第二方面，提供了一种电子产品，包括：
第一表面和第二表面，所述第一表面以可振动的形式连接在所述电子产品上；
所述的振动发声装置，所述第一壳体设置在所述第一表面上，所述第二壳体设置在所述第二表面上；
或者，所述第一壳体设置在所述第二表面上，所述第二壳体设置在所述第一表面上；
所述振动发声装置被配置为驱动所述第一表面相对于所述第二表面振动发声。
与现有技术相比，本发明的技术效果在于：
本发明公开了一种用于电子产品的振动发声装置及电子产品，该振动发声装置包括第一壳体、磁性组件、线圈组件和第二壳体，本发明将所述磁性组件和所述线圈组件组成嵌套的形式，降低了振动发声装置整体的高度，提高了空间利用率和装配精度，给电子设备提供了足够的利用空间。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。
图1为本发明一种振动发声装置的爆炸图；
图2为本发明一种振动发声装置的结构示意图(不包括第一壳体)；
图3为本发明一种振动发声装置的侧视图；
图4为本发明一种振动发声装置的剖面示意图；
图5为本发明另一种振动发声装置的剖面示意图；
图6为本发明一种振动发声装置应用在电子产品上的示意图；
图7为本发明图6中A处的放大图。
其中：100-振动发声装置；1-第一壳体；2-磁性组件；21-第一磁铁；22-第二磁铁；23-第三磁铁；24-第四磁铁；3-线圈组件；4-第二壳体；41-弹片；42-凸台；5-华司；6-第一通孔；200-第一表面；300-第二表面。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作 为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
参照图1和图2，本发明公开了一种用于电子产品的振动发声装置100，包括：
第一壳体1、磁性组件2、线圈组件3和第二壳体4，所述第一壳体1一侧开口形成空腔，所述磁性组件2包括第一磁性组件和第二磁性组件，所述第一磁性组件包括第一磁铁21和第三磁铁23，所述第二磁性组件包括第二磁铁22和第四磁铁24，所述第一磁性组件和第二磁性组件分别设置于所述第一壳体1内相对的侧壁上，所述第一磁铁21和第二磁铁22的充磁方向相同且沿其排列方向，所述第三磁铁23和第四磁铁24的充磁方向相同且沿其排列方向，所述第一磁铁21的充磁方向与所述第三磁铁23的充磁方向相反，所述第一磁铁21、第二磁铁22、第三磁铁23和第四磁铁24组成闭合磁回路；所述第一磁性组件和所述第二磁性组件之间留出第一通道；所述线圈组件3与所述第二壳体4连接并沿其径向穿入所述第一通道内；所述第二壳体4与所述磁性组件2可活动连接。
所述第一磁铁21和第二磁铁22的充磁方向相同且均沿其排列方向，也就是所述第一磁铁21和第二磁铁22的磁力线均会穿过所述第一通道中的线圈组件3，这时所述磁性组件2和所述线圈组件3之间就会产生相互作用力，同样地，所述第三磁铁23和第四磁铁24的充磁方向相同且沿其排列方向，所述第一磁铁21的充磁方向与所述第三磁铁23的充磁方向相反，这样所述第一磁铁21、第二磁铁22、第三磁铁23和第四磁铁24就组成了一个闭合磁回路，共同带动与所述振动发声装置100连接的电子产品 发声。本发明将所述磁性组件2和所述线圈组件3组成嵌套的形式，降低了振动发声装置100整体的高度，空间利用率高，给电子设备提供了足够的利用空间。
更重要的是，所述第二壳体4与所述磁性组件2可活动连接，这就将所述振动发声装置100组成了一体式振动发声装置，一体式的机构降低了装配工艺的难度，包覆有磁性组件2的第一壳体1和固定连接有线圈组件3的第二壳体4之间的相对位置得以保证，提高了整个振动发声装置100的装配精度。
在一种具体的实施方式中，参见图4，所述第一磁铁21和第二磁铁22对称布置在所述线圈组件3的两侧，所述第一磁铁21和第二磁铁22的充磁方向均为水平向右，左边均为N极，右边均为S极，所述第三磁铁23和第四磁铁24对称布置在所述线圈组件3的两侧，所述第三磁铁23和第四磁铁24的充磁方向均为水平向左，左边均为S极，右边均为N极；在所述线圈组件3通入电流后，所述线圈组件3就会受到竖直向下或者竖直向上的作用力，具体受力方向向下还是向上需要根据线圈组件3的电流方向确定，这就可以通过线圈组件3直接驱动电子产品的发生部位发声，而且根据电流的大小和方向调节振动的大小和方向，该方式下磁感线的利用效率高，动力强，提供了电子产品更好的发声品质。
本发明采用四个磁铁组成四个磁路的方式，四个磁铁均沿其排列方向充磁，而且所述第三磁铁23和第四磁铁24的充磁方向与所述第一磁铁21和第二磁铁22的充磁方向相反，这样通过导磁材料就使得四个磁路构成闭合回路，形成所述磁性组件2和所述线圈组件3之间强有力的作用力，而且磁路结构简单，装配难度较低。
在一种具体的实施方式中，所述线圈组件3可以为立式线圈，所述立式线圈胶粘于所述第二壳体4表面，所述线圈组件3穿入所述第一磁铁21和第二磁铁22之间的第一通道内。
可选地，参见图1和图3，所述第二壳体4还包括多个弹片41，多个所述弹片41与所述磁性组件2对应设置并连接至所述磁性组件2。所述弹片41的数量可以为两个、三个、四个或者更多，只要能够起到很好地连接 所述磁性组件2的作用即可。
在一种具体的实施方式中，所述弹片41的数量为两个，分别对应设置于所述第一壳体1两侧的磁性组件2下方，所述弹片41倾斜设置在所述第二壳体4上，所述弹片41靠近所述第二壳体4的一端与所述第二壳体4连接，所述弹片41远离所述第二壳体4的一端设置为与所述第二壳体4平行的平面，所述平面与所述磁性组件2连接。
可选地，所述第二壳体4上设置有支撑所述线圈组件3的凸台42，所述凸台42可以为几字形或者工字型，只要能够起到支撑所述线圈组件3的作用即可。由于在所述第二壳体4上设置了多个弹片41，所述弹片41具有一定高度，使得所述磁性组件2和第二壳体之间相隔一定距离，为了保证所述线圈组件3与所述磁性组件2之间相对设置，在所述第二壳体4上设置有支撑所述线圈组件3的凸台42，所述凸台42的高度与所述弹片41的高度可以比较接近，也可以相同，这样就可以保证所述线圈组件3与所述磁性组件2处在相同或者接近相同的水平高度，提高了所述线圈组件3与所述磁性组件2之间的作用效率。
可选地，所述弹片41与所述第二壳体4之间采用焊接或者一体成型。在一种具体的实施方式中，为了保证所述振动发声装置100的结构强度，所述弹片41与所述第二壳体4均可以使用强度较高的金属材质，两者材质可以接近或者相同，这样就可以采用焊接的方式将所述弹片41与所述第二壳体4连接起来，保证了结构强度的同时提高了连接的可靠性。
在另一种具体的实施方式中，如果所述弹片41与所述第二壳体4的材质相同，可以都是同一种金属或同一种塑料，或者为多种金属混合材料或者多种塑料混合材料，只要所述弹片41与所述第二壳体4的材质一致，两者之间就可以采用一体成型的方式，这样不仅可以提高所述弹片41与所述第二壳体4之间的连接强度，还可以简化所述振动发声装置100的生产和装配工艺。
可选地，所述弹片41与所述磁性组件2之间采用焊接或者粘接。在一种具体的实施方式中，为了保证所述振动发声装置100的一体式结构强度，所述弹片41可以使用强度较高的金属材质，这样就可以采用焊接的方 式将所述弹片41与所述磁性组件2连接起来，保证了结构强度的同时提高了连接的可靠性。
另外，如果所述弹片41与所述磁性组件2之间不便于焊接，比如所述弹片41为塑料材质或者不能与所述磁性组件2焊接在一起的金属材质，所述弹片41与所述磁性组件2之间便可以采用粘接的连接方式，粘接的方式操作简单，成本较低。
可选地，所述磁性组件2的第一磁铁21、第二磁铁22、第三磁铁23和第四磁铁24沿所述线圈组件3对称布置。具体为，所述第一磁铁21和第三磁铁23与所述第二磁铁22和第四磁铁24沿所述线圈组件3径向对称布置，所述第一磁铁21和第二磁铁22与所述第三磁铁23和第四磁铁24沿所述线圈组件3轴向对称布置，这样上下左右对称各两块长条状磁铁，不仅组成了完整的磁回路，而且在对称的条件下磁力线与所述线圈组件3垂直，磁感线的利用率高，所述磁性组件2与所述线圈组件3之间的作用力更强。
可选地，参见图5，所述第三磁铁23和所述第一磁铁21之间的距离a大于所述第三磁铁23或所述第一磁铁21与所述线圈组件3之间的距离b。由于所述第一磁铁21和第二磁铁22与所述第三磁铁23和第四磁铁24之间构成了完整的磁回路，在a大于b时，以第一磁铁21为例，所述第一磁铁21与所述线圈组件3之间的作用力就会大于所述第一磁铁21与所述第三磁铁23之间的作用力，所述第一磁铁21产生的磁力线也就更容易穿过所述线圈组件3，与所述线圈组件3之间产生强有力的相互作用力，保证了所述磁回路的完整性和稳定性。
可选地，所述第一磁铁21和第二磁铁22的充磁方向与所述线圈组件3的径向垂直。所述第一磁铁21和第二磁铁22布置在所述述线圈组件3的两侧而且充磁方向相同，这样，所述第一磁铁21和第二磁铁22产生的磁感线就会穿过所述线圈组件3。在一种情况下，如果所述第一磁铁21和第二磁铁22一上一下布置，所述第一磁铁21和第二磁铁22的磁感线沿其排列方向虽然会穿过所述线圈组件3，但仅仅是相交，而达不到垂直，这样磁感线的利用率就会下降；而如果所述第一磁铁21和第二磁铁22布置 在同一水平面上，即所述第一磁铁21和第二磁铁22的充磁方向沿其排列方向与所述线圈组件3径向垂直，这时所述第一磁铁21和第二磁铁22的磁感线就会垂直穿过所述线圈组件3，给所述磁性组件2和所述线圈组件3提供更有效的磁力和相互作用。
可选地，所述第一壳体1的材质可以为导磁材料也可以为非导磁材料。在一种具体实施方式中，所述第一壳体1的材质为导磁材料，导磁材料的设置就可以将同一侧的磁性组件2之间连接起来，中间再通过所述线圈组件3形成完整的回路。
在另一种具体实施方式中，所述第一壳体1的材质为非导磁材料，所述振动发声装置100还包括华司5，所述华司5设置于所述第一壳体1和所述磁性组件2之间，所述第一壳体1同一侧壁上的磁性组件2之间通过所述华司5连接。所述同一侧的磁性组件2之间通过所述华司5连接就可以避免将整个所述第一壳体1设置为导磁材料，避免了所述第一壳体1对所述振动发声装置100形成封闭，保证了磁回路不受多余导磁材料的干扰，提高了磁回路的稳定性。
可选地，所述第一壳体1上远离所述第二壳体4的一侧设置有第一通孔6，所述第一通孔6与所述线圈组件3相对设置。由于所述磁性组件2和所述线圈组件3嵌套于所述第一壳体1内部，但两者之间时刻要保持足够的磁间隙，所述第一通孔6的设置就可以很方便地查看所述磁性组件2和所述线圈组件3之间的磁间隙，及时发现间隙问题并及时调整，这就提高了所述振动发声装置100的效率和使用寿命。
参见图6，本发明还公开了一种电子产品，包括：
第一表面200和第二表面300，所述第一表面200以可振动的形式连接在所述电子产品上；
所述的振动发声装置100，所述振动发声装置100的第一壳体1设置在所述第一表面200上，所述振动发声装置100的第二壳体4设置在所述第二表面300上；
或者，所述振动发声装置100的第一壳体1设置在所述第二表面300上，所述振动发声装置100的第二壳体4设置在所述第一表面200上；
所述振动发声装置100被配置为驱动所述第一表面200相对于所述第二表面300振动发声，给所述电子产品提供了良好的发声品质。
具体地，所述第一壳体1可以粘接于所述第一表面200表面，或者镶嵌于第一表面200内部，只要能够保证足够的连接强度即可。
具体地，所述第一表面200可以为所述电子产品的屏幕，所述第二表面300可以为所述电子产品的中框或者PCB板。
可选地，所述电子产品包括手机、平板电脑、电子书阅读器、MP3播放器、MP4播放器、计算机、机顶盒、智能电视和可穿戴设备中的一种。
参见图7，在本发明一种实施例中，所述振动发声装置100应用于一种电子产品上，所述振动发声装置100的第一壳体1设置在所述第二表面300上，所述振动发声装置100的第二壳体4设置在所述第一表面200上，所述第一壳体1内的磁性组件2与所述第二壳体4内的线圈组件3产生强有力的相互作用力，直接通过所述第二壳体4带动所述第一表面200振动发声。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (10)

  1. 一种用于电子产品的振动发声装置(100)，其特征在于，包括：
    第一壳体(1)，所述第一壳体(1)一侧开口形成空腔；
    磁性组件(2)，所述磁性组件(2)包括第一磁性组件和第二磁性组件，所述第一磁性组件包括第一磁铁(21)和第三磁铁(23)，所述第二磁性组件包括第二磁铁(22)和第四磁铁(24)，所述第一磁性组件和第二磁性组件分别设置于所述第一壳体(1)内相对的侧壁上，所述第一磁铁(21)和第二磁铁(22)的充磁方向相同且沿其排列方向，所述第三磁铁(23)和第四磁铁(24)的充磁方向相同且沿其排列方向，所述第一磁铁(21)的充磁方向与所述第三磁铁(23)的充磁方向相反，所述第一磁铁(21)、第二磁铁(22)、第三磁铁(23)和第四磁铁(24)组成闭合磁回路；
    所述第一磁性组件和所述第二磁性组件之间留出第一通道；
    线圈组件(3)和第二壳体(4)，所述线圈组件(3)与所述第二壳体(4)连接并沿其径向穿入所述第一通道内；
    所述第二壳体(4)与所述磁性组件(2)可活动连接。
  2. 根据权利要求1所述的一种振动发声装置(100)，其特征在于，所述第二壳体(4)还包括多个弹片(41)，多个所述弹片(41)与所述磁性组件(2)对应设置并连接至所述磁性组件(2)。
  3. 根据权利要求2所述的一种振动发声装置(100)，其特征在于，所述弹片(41)倾斜设置在所述第二壳体(4)上，所述弹片(41)靠近所述第二壳体(4)的一端与所述第二壳体(4)连接，所述弹片(41)远离所述第二壳体(4)的一端设置为与所述第二壳体(4)平行的平面，所述平面与所述磁性组件(2)连接。
  4. 根据权利要求2所述的一种振动发声装置(100)，其特征在于，所述第二壳体(4)上设置有支撑所述线圈组件(3)的凸台(42)。
  5. 根据权利要求2或3所述的一种振动发声装置(100)，其特征在于，所述弹片(41)与所述第二壳体(4)之间采用焊接或者一体成型。
  6. 根据权利要求1所述的一种振动发声装置(100)，其特征在于，所述磁性组件(2)的第一磁铁(21)、第二磁铁(22)、第三磁铁(23)和第四磁铁(24)沿所述线圈组件(3)对称布置。
  7. 根据权利要求6所述的一种振动发声装置(100)，其特征在于，所述第三磁铁(23)和所述第一磁铁(21)之间的距离大于所述第三磁铁(23)或所述第一磁铁(21)与所述线圈组件(3)之间的距离。
  8. 根据权利要求1所述的一种振动发声装置(100)，其特征在于，所述第一磁铁(21)和第二磁铁(22)的充磁方向与所述线圈组件(3)的径向垂直。
  9. 根据权利要求1所述的一种振动发声装置(100)，其特征在于，所述振动发声装置(100)还包括华司(5)，所述华司(5)设置于所述第一壳体(1)和所述磁性组件(2)之间，所述第一壳体(1)同一侧壁上的的磁性组件(2)之间通过所述华司(5)连接。
  10. 一种电子产品，其特征在于，包括：
    第一表面(200)和第二表面(300)，所述第一表面(200)以可振动的形式连接在所述电子产品上；
    权利要求1-9任意之一所述的振动发声装置(100)，所述第一壳体(1)设置在所述第一表面(200)上，所述第二壳体(4)设置在所述第二表面(300)上；
    或者，所述第一壳体(1)设置在所述第二表面(300)上，所述第二壳体(4)设置在所述第一表面(200)上；
    所述振动发声装置(100)被配置为驱动所述第一表面(200)相对于所述第二表面(300)振动发声。
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