WO2021103075A1 - 屏幕发声器及应用该屏幕发声器的电子设备 - Google Patents

屏幕发声器及应用该屏幕发声器的电子设备 Download PDF

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Publication number
WO2021103075A1
WO2021103075A1 PCT/CN2019/123046 CN2019123046W WO2021103075A1 WO 2021103075 A1 WO2021103075 A1 WO 2021103075A1 CN 2019123046 W CN2019123046 W CN 2019123046W WO 2021103075 A1 WO2021103075 A1 WO 2021103075A1
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WO
WIPO (PCT)
Prior art keywords
upper cover
magnetic steel
magnetic
lower cover
screen
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PCT/CN2019/123046
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English (en)
French (fr)
Inventor
周科勇
严绪东
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
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Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2021103075A1 publication Critical patent/WO2021103075A1/zh

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Classifications

    • 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the invention belongs to the technical field of sound emitting devices, and particularly relates to a screen sounder and an electronic device using the screen sounder.
  • the exciter is a key component to achieve screen sound.
  • high-performance exciters have become more and more important, and direct-drive exciters have become an important way to achieve high-efficiency magnetic circuit design.
  • the volume left for the exciter is getting smaller and smaller.
  • the magnetic circuit efficiency of the direct drive exciter is still not high, and it cannot be used in a small volume. In the case of meeting the screen sounding speaker function.
  • the purpose of the present invention is to provide a screen sounder and an electronic device using the screen sounder, which has better integrity, can balance suction and ensure magnetic gap, so as to meet the needs of screen sound in a small volume.
  • a screen sounder including a first functional component, a second functional component connected to the first functional component, the first functional component including an upper cover and fixedly connected to the upper
  • the coil of the cover, the second functional assembly includes a lower cover arranged at a distance from the upper cover and a magnetic steel assembly fixedly connected to the lower cover on a side close to the upper cover, the first functional assembly and the upper cover
  • the second functional components are connected by an elastic structure
  • the upper cover includes an upper cover plate located in an intermediate position and a peripheral wall extending from the periphery of the upper cover plate toward the lower cover.
  • the elastic structure includes a connection The first elastic piece of the lower cover and the peripheral wall, and one end connected to the upper cover plate and the other end fixed to the second elastic piece on the side of the magnetic steel assembly close to the upper cover plate.
  • the first elastic piece is ring-shaped, the lower cover has a boss structure extending from its edge toward the upper cover, and the first elastic piece includes an assembling part fixed to the boss structure and a self-supporting The assembling part extends and is fixed to the elastic part of the peripheral wall.
  • the elastic structure further includes a connecting block fixedly connected between the elastic portion and the peripheral wall.
  • the width of the assembling part is greater than the width of the elastic part.
  • the magnetic steel assembly includes a magnetic steel group fixed to the lower cover and arranged on the peripheral side of the coil, and a magnetic conductive member fixed to the magnetic steel group, the magnetic conductive member and the upper cover
  • the plates are arranged oppositely and fixedly connected with the second elastic sheet.
  • the magnetic steel assembly includes two magnetic steel groups, the upper cover plate is provided with four second elastic pieces, and each of the magnetic steel groups corresponds to two second elastic pieces.
  • the magnetic conductive member includes a first magnetic conductive member disposed opposite to the upper cover plate and fixedly connected to the second elastic piece, and a first magnetic conductive member bent and extended from an edge of the first magnetic conductive member toward the lower cover
  • the second magnetically conductive member is fixed to the magnetic steel group and is spaced apart from the peripheral wall.
  • each of the magnetic steel groups includes a first magnetic steel, a second magnetic steel, and a third magnetic steel that are sequentially and fixedly connected from the lower cover toward the upper cover, and the magnetic steel groups in the same group
  • the magnetic poles of the first magnet and the third magnet are opposite and parallel to the winding direction of the coil.
  • the magnetic pole direction of the second magnet is perpendicular to the winding direction of the coil.
  • the magnetic pole directions of the corresponding second magnets in the magnetic steel group are opposite, and the magnetic pole directions of the corresponding first magnets in the magnetic steel groups of different groups are the same.
  • the magnetic pole directions of the third magnets are the same.
  • the first functional component further includes an iron core surrounded and fixed by the coil, the winding direction of the coil is parallel to the surface of the upper cover plate, and the two axial end surfaces of the coil are respectively connected to the The peripheral wall is enclosed to form an assembly interval, and the magnetic steel component is accommodated in the assembly interval.
  • the first functional component further includes a fixing sleeve arranged on the outside of the coil and fixed to the upper cover plate, and a backing plate fixed between the upper cover plate and the coil, the fixing sleeve Openings matched with the iron core are respectively opened on both sides of the iron core, and both ends of the iron core are respectively embedded in the corresponding openings.
  • an electronic device which includes a screen and any one of the above-mentioned screen sounders connected to the screen.
  • the electronic device further includes a first fixing plate fixed to a side of the upper cover plate away from the lower cover, and a circuit board electrically connected to the coil.
  • the electronic device further includes a buffer plate fixedly connected to the side of the lower cover away from the upper cover, a second fixing plate fixed to the side of the buffer plate away from the lower cover, And an adhesive layer disposed on a side of the second fixing plate away from the lower cover, two sides of the lower cover are fixedly connected to a fixing seat, and the fixing seat is fixedly connected to the second fixing plate by screws.
  • the first functional component and the second functional component can be stably connected through the connection of the first elastic piece and the second elastic piece.
  • the first elastic piece can ensure the relative position between the first functional component and the second functional component, thereby ensuring the magnetic gap and balance The suction force and the integrity of the device.
  • the first functional component and the second functional component will vibrate relative to each other along the direction perpendicular to the upper cover plate surface, so it can better meet the small volume situation The demand for sound on the screen.
  • Figure 1 is a schematic diagram of the overall structure of the screen sounder of the present invention.
  • Fig. 2 is a cut-away schematic diagram of the screen sounder in Fig. 1 along the A-A direction;
  • FIG. 3 is a schematic diagram of the three-dimensional exploded structure of the screen sounder of the present invention.
  • FIG. 4 is a schematic diagram of a three-dimensional exploded structure of the screen sounder in FIG. 2;
  • Fig. 5 is a schematic diagram of the magnetic pole direction of each magnet in the magnet assembly of the screen sounder in Fig. 1 along the A-A viewing angle.
  • an electronic device which includes a screen and a screen sounder connected to the screen, where, as shown in Figures 1-5, the screen sounder includes a first functional component 1, connected to the first functional component 1.
  • the second functional component 3 of the electronic device can be a mobile phone, a tablet, etc.
  • the mobile phone and the tablet include a middle frame and a screen arranged on the middle frame, the screen sounder is arranged between the middle frame and the screen, and the first functional component 1 can Fixed on the middle frame, the second functional component 3 can be fixed on the screen, of course, it can also be a configuration in which the first functional component 1 is fixed to the screen and the second functional component 3 is fixed to the middle frame.
  • the first functional component 1 includes The upper cover 11 and the coil 12 fixedly connected to the upper cover 11, the first functional assembly 1 includes an upper cover 11 and the coil 12 fixedly connected to the upper cover 11, and the second functional assembly 3 includes a lower cover arranged opposite to the upper cover 11 31 and the magnetic steel assembly 002 fixedly connected to the lower cover 31 on the side close to the upper cover 11, the first functional assembly 1 and the second functional assembly 3 are connected by an elastic structure 2, and the upper cover 11 includes an upper cover plate located in the middle position 111 and a peripheral wall 112 extending from the peripheral edge of the upper cover 111 toward the lower cover 31.
  • the elastic structure 2 includes a first elastic piece 21 connecting the lower cover 31 and the peripheral wall 112, and one end connected to the upper cover 111 and the other end fixed to the magnetic
  • the steel component 002 is close to the second elastic piece 23 on the upper cover 111 side.
  • the first functional component 1 and the second functional component 3 can be stably connected by the connection of the first elastic piece 21 and the second elastic piece 23, and the first elastic piece 21 can ensure the relative position between the first functional component 1 and the second functional component 3 , So as to ensure the magnetic gap, balanced attraction and the integrity of the device.
  • the coil 12 is energized by alternating current to generate a changing magnetic field, under the interaction with the magnetic steel component 002, the first functional component 1 and the second functional component 3 will Relatively vibrate along the direction perpendicular to the surface of the upper cover 111, so that it can better meet the needs of screen sound in the case of small volume.
  • the first elastic piece 21 is ring-shaped, and the lower cover 31 has a boss structure 311 extending from its edge toward the upper cover 11.
  • the first elastic piece 21 includes an assembling part fixed to the boss structure 311 and an assembling part extending from the assembling part and fixed to the peripheral wall 112
  • the elastic portion 212; the width of the assembly portion is greater than the width of the elastic portion 212; the elastic structure 2 also includes a connecting block 22 fixedly connected between the elastic portion 212 and the peripheral wall 112.
  • the first elastic piece 21 has a frame shape.
  • the first elastic piece 21 surrounds the outer side of the magnetic steel assembly 002 and is located between the end surface of the peripheral wall 112 of the upper cover 11 and the lower cover 31.
  • the first elastic piece 21 is located between the end surface of the peripheral wall 112 of the upper cover 11 and the lower cover 31.
  • the contour projection in the direction perpendicular to the upper cover plate 111 corresponds to the peripheral wall 112 of the upper cover 11.
  • the lower cover 31 has two boss structures 311.
  • the two boss structures 311 are respectively located on the side away from the coil 12 of the two magnetic steel groups 32, corresponding to The corresponding position of the first elastic piece 21 has two assembling parts, and the first elastic piece 21 is fixed to the two boss structures 311 through the two assembling parts respectively. Therefore, the first elastic piece 21 can maintain the relative position with the lower cover 31 and restrain the upper cover 11. Shake left and right, the rest of the first elastic piece 21 except the assembling part is the elastic part 212. Since the boss structure 311 protrudes from the plate surface of the lower cover 31, there will be a gap between the elastic part 212 and the plate surface of the lower cover 31. The interval is equivalent to that the elastic portion 212 is suspended. Therefore, the elastic portion 212 can realize the elastic function.
  • the elastic portion 212 is fixedly connected to the peripheral wall 112 of the upper cover 11 through the connecting block 22, so that the end surface of the peripheral wall 112 and the elastic portion 212 are spaced apart , So as to realize the elastic connection between the upper cover 11 and the lower cover 31, and can maintain the position of the upper cover 11 and the lower cover 31 in the direction parallel to the surface of the upper cover plate 111, that is, the upper cover 11 can be opposed to the lower cover 31 Moving in a direction perpendicular to the surface of the upper cover plate 111, the first elastic sheet can restrain the upper cover 11 from swinging left and right relative to the lower cover 31, thereby ensuring the integrity of the sound generating device.
  • the first elastic piece 21 may not be frame-shaped, as long as it is a structure capable of movably connecting the upper cover 11 with respect to the lower cover 31 in a direction perpendicular to the surface of the upper cover plate 111, and it is not made here.
  • the first elastic piece 21 may be strip-shaped.
  • the lower cover 31 has two boss structures 311, which are respectively located on the side away from the coil 12 of the two magnetic steel groups 32.
  • the middle part of the elastic piece 21 is the assembling part, the two ends of the first elastic piece 21 are elastic parts 212, the first elastic piece 21 is provided with two pieces and is fixedly assembled on the corresponding boss structure 311 by the assembling parts, and the ends of the elastic part 212 pass
  • the connecting block 22 is fixedly connected to the peripheral wall 112 of the upper cover 11; in other embodiments, the boss structure 311 can also be arranged at other positions on the periphery of the lower cover 31, and the number of the boss structure 311 can also be set according to the situation, for example, three , Four, five, six, etc.
  • the magnetic steel assembly 002 includes a magnetic steel group 32 fixed to the lower cover 31 and arranged on the circumference side of the coil 12, and a magnetic conductive member 324 fixed to the magnetic steel group 32.
  • the magnetic conductive member 324 is arranged opposite to the upper cover plate 111 and is connected to the second The shrapnel 23 is fixedly connected.
  • the magnetic conductive member 324 includes a first magnetic conductive member 3241 disposed opposite to the upper cover 111 and fixedly connected to the second elastic piece 23, and a second magnetic conductive member 3242 bent and extended from the edge of the first magnetic conductive member 3241 toward the lower cover 31 ,
  • the second magnetic conductive member 3242 is fixed to the magnetic steel group 32 and is spaced apart from the peripheral wall 112.
  • the first functional component 1 also includes an iron core 13 surrounded and fixed by the coil 12, the winding direction of the coil 12 is parallel to the surface of the upper cover 111, and the two axial end surfaces of the coil 12 are respectively enclosed with the peripheral wall 112 to form an assembly interval 001 ,
  • the magnetic steel component 002 is contained in the assembly compartment 001.
  • the magnet group 32 includes a first magnet 321, a second magnet 322, and a third magnet 323 that are fixedly connected in sequence from the lower cover 31 to the upper cover 11.
  • the first magnet 321 and the third magnet 323 in the same magnet group 32 The magnetic pole direction of the third magnet 323 is opposite and parallel to the winding direction of the coil 12, the magnetic pole direction of the second magnet 322 is perpendicular to the winding direction of the coil 12, and the corresponding second magnets in the magnet groups 32 of different groups
  • the magnetic pole direction of the steel 322 is opposite, the magnetic pole direction of the corresponding first magnet 321 in the magnetic steel group 32 of different groups is the same, and the magnetic pole direction of the third magnet 323 corresponding to the magnetic steel group 32 of different groups is the same.
  • the magnetic steel assembly 002 includes two magnetic steel groups 32, the second elastic pieces 23 are provided with four and all are integrally formed with the upper cover 111, and each group of magnetic steel corresponds to two second elastic pieces 23.
  • 23 extends obliquely from the upper cover 111 toward the corresponding magnetic steel group 32 and abuts against the top side of the corresponding magnetic steel group 32 (the side of the magnetic steel group 32 close to the upper cover 111), specifically against the magnetically conductive
  • the top side of the piece 324 (the side of the magnetic conductive piece 324 close to the upper cover 111), and the two second elastic pieces 23 of the corresponding group are symmetrical with respect to the center line of the corresponding magnetic steel group 32, so that the elastic force is evenly distributed.
  • the sound device can have better integrity and stability.
  • a magnetic circuit is formed between the corresponding first magnet 321 and the third magnet 323 in the two sets of magnets 32.
  • the arrangement of the second magnet 322 can enhance the magnetic circuit, and the structure of the six magnets makes the magnetic circuit more efficient.
  • the coil 12 will be affected by the magnetic field when the alternating current is applied to produce the first driving force.
  • the iron core 13 forms an electromagnet with the same polarity as the axial direction of the coil 12, and the iron core 13 is subjected to The influence of the magnetic field will produce a second driving force. Under the superposition of the two driving forces in the same direction, a higher driving force can be obtained, so that relative vibration between the first functional component 1 and the second functional component 3 can be generated to meet the requirements of small The need for screen sound in the case of volume.
  • the first functional assembly 1 further includes a fixing sleeve 14 arranged outside the coil 12 and fixed to the upper cover 111. Both sides of the fixing sleeve 14 are respectively provided with openings matching the iron core 13, and the iron core 13 The two ends are respectively embedded in the corresponding openings.
  • the fixing sleeve 14 is U-shaped, and both ends of the fixing sleeve 14 have assembly edges extending outward.
  • the fixing sleeve 14 surrounds the side of the coil 12 away from the upper cover 111 and the two end faces of the coil 12 in the axial direction. The assembling edge is fixed to the upper cover plate 111, so the coil 12 can be fixedly connected to the upper cover plate 111 through the fixing sleeve 14.
  • the fixing sleeve 14 can also wrap the entire coil 12; the length of the iron core 13 is greater than that of the coil With the axial thickness of 12, the two end faces of the iron core 13 are flush with the corresponding side faces of the fixing sleeve 14, so that the integrity of the coil 12, the iron core 13 and the fixing sleeve 14 is better.
  • the first functional component 1 also includes a backing plate 15 fixed between the upper cover 111 and the coil 12.
  • the backing plate 15 is also located in the fixing sleeve 14.
  • the backing plate 15 can isolate the coil 12 from the upper cover 111 to avoid the coil 12. It is directly in contact with the upper cover 111 to protect the coil 12, and the backing plate 15 can be made of elastic material, such as foam, silica gel, etc.
  • the electronic device further includes a first fixing plate 16 fixed on the side of the upper cover 111 away from the lower cover 31, and a circuit board 17 electrically connected to the coil 12.
  • the upper cover 11 can be fixedly connected to the corresponding structure of the electronic device through the first fixing plate 16, and the circuit board 17 can electrically connect the coil 12 to the electronic device to transmit electrical signals, so that the screen sound device generates a corresponding vibration signal.
  • the electronic device also includes a buffer plate 33 fixedly connected to the side of the lower cover 31 away from the upper cover 11, a second fixing plate 34 fixed to the side of the buffer plate 33 away from the lower cover 31, and a second fixing plate disposed on the second fixing plate.
  • the buffer plate 33 can be made of flexible materials such as foam, silica gel, etc., which can buffer the lower cover 31.
  • the second fixing plate 34 can be fixed to the electronic device by an adhesive layer 35.
  • the adhesive layer 35 can be double-sided adhesive, and the adhesive layer 35 can also be used. This is achieved by gluing. Both sides of the lower cover 31 are fixedly connected to the fixing base 312, and the fixing base 312 is fixedly connected to the second fixing plate 34 by screws 313, so that the lower cover 31 and the second fixing plate 34 are connected stably.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本发明提供了屏幕发声器及应用该屏幕发声器的电子设备。提供一种电子设备，包括屏幕及屏幕发声器，其中，屏幕发声器包括第一功能组件和第二功能组件，第一功能组件包括上盖和线圈，第二功能组件包括下盖和磁钢组件，第一功能组件和第二功能组件之间由弹性结构相连，上盖包括位于中间位置的上盖板及自上盖板的周缘朝向下盖方向延伸形成的周壁，弹性结构包括连接下盖与周壁的第一弹片以及一端连接于上盖板且另一端固定于磁钢组件靠近上盖板侧的第二弹片。本方案能保证磁间隙、平衡吸力及器件的整体性，更能满足小体积情况下屏幕发声需求。

Description

屏幕发声器及应用该屏幕发声器的电子设备 技术领域
本发明属于发声器件技术领域，尤其涉及屏幕发声器及应用该屏幕发声器的电子设备。
 背景技术
激励器是实现屏幕发声的关键组成部分，随着屏幕发声技术的快速应用，高性能的激励器也变得越来越重要，而直驱式的激励器成为实现高效磁路设计的重要方式。然而随着电子设备的设计对体积小的要求越来越高，留给激励器的体积越来越小，在相关技术中，直驱式激励器的磁路效率仍然不高，无法在小体积的情况下满足屏幕发声扬声器功能。
 技术问题
本发明的目的在于提供一种屏幕发声器及应用该屏幕发声器的电子设备，整体性更好，能够平衡吸力及保证磁间隙，从而满足小体积情况下屏幕发声的需求。
 技术解决方案
本发明的技术方案如下：提供一种屏幕发声器，包括第一功能组件、连接于所述第一功能组件的第二功能组件，所述第一功能组件包括上盖和固定连接于所述上盖的线圈，所述第二功能组件包括与所述上盖相对间隔设置的下盖和固定连接于所述下盖靠近所述上盖一侧的磁钢组件，所述第一功能组件和所述第二功能组件之间由弹性结构相连，所述上盖包括位于中间位置的上盖板及自所述上盖板的周缘朝向所述下盖方向延伸形成的周壁，所述弹性结构包括连接所述下盖与所述周壁的第一弹片以及一端连接于所述上盖板且另一端固定于所述磁钢组件靠近所述上盖板侧的第二弹片。
进一步地，所述第一弹片为环形，所述下盖具有自其边缘朝向所述上盖延伸形成的凸台结构，所述第一弹片包括固定于所述凸台结构的装配部及自所述装配部延伸并固定于所述周壁的弹性部。
进一步地，所述弹性结构还包括固定连接于所述弹性部和周壁之间的连接块。
进一步地，所述装配部的宽度大于所述弹性部的宽度。
进一步地，所述磁钢组件包括固定于所述下盖且设于所述线圈周侧的磁钢组以及固定于所述磁钢组的导磁件，所述导磁件与所述上盖板相对设置并与所述第二弹片固定连接。
进一步地，所述磁钢组件包括两磁钢组，所述上盖板设置四个所述第二弹片，每个所述磁钢组对应两所述第二弹片。
进一步地，所述导磁件包括与所述上盖板相对设置且与所述第二弹片固定连接的第一导磁件以及自所述第一导磁件边缘朝向所述下盖弯折延伸的第二导磁件，所述第二导磁件固定于所述磁钢组并与所述周壁间隔设置。
进一步地，所述磁钢组均包括自所述下盖朝向所述上盖依次固定连接的第一磁钢、第二磁钢和第三磁钢，同组所述磁钢组中的所述第一磁钢和所述第三磁钢的磁极方向相反且均平行于所述线圈的绕线方向，所述第二磁钢的磁极方向垂直于所述线圈的绕线方向，不同组的所述磁钢组中对应的所述第二磁钢的磁极方向相反，不同组的所述磁钢组中对应的所述第一磁钢的磁极方向相同，不同组的所述磁钢组中对应的所述第三磁钢的磁极方向相同。
进一步地，所述第一功能组件还包括由所述线圈环绕固定的铁芯，所述线圈的绕线方向平行于所述上盖板的板面，所述线圈的两轴向端面分别与所述周壁围合形成装配间隔，所述磁钢组件容置于所述装配间隔内。
进一步地，所述第一功能组件还包括设置于所述线圈外侧且固定于所述上盖板的固定套及固定于所述上盖板和所述线圈之间的垫板，所述固定套的两侧分别开设与所述铁芯匹配的开口，所述铁芯的两端分别嵌设于对应的所述开口内。
进一步地，提供一种电子设备，包括屏幕及与所述屏幕相连的、如上任意一种所述的屏幕发声器。
进一步地，所述电子设备还包括固定于所述上盖板远离所述下盖的一侧的第一固定板、以及与所述线圈电连接的线路板。
进一步地，所述电子设备还包括固定连接于所述下盖的远离所述上盖的一侧的缓冲板、固定于所述缓冲板的远离所述下盖的一侧的第二固定板、以及设置于所述第二固定板的远离所述下盖的一侧的胶层，所述下盖的两侧固定连接固定座，所述固定座通过螺钉固定连接于所述第二固定板。
 有益效果
本发明的有益效果在于：
第一功能组件和第二功能组件通过第一弹片和第二弹片的连接作用可以稳定连接，第一弹片可以保证第一功能组件和第二功能组件之间的相对位置，从而保证磁间隙、平衡吸力及器件的整体性，在与磁钢组件的相互作用下，第一功能组件和第二功能组件之间会沿着垂直于上盖板板面的方向相对振动，因此更能满足小体积情况下屏幕发声的需求。
 附图说明
图1为本发明屏幕发声器的整体结构示意图；
图2为图1中屏幕发声器沿A-A方向的剖开示意图；
图3为本发明屏幕发声器的立体分解结构示意图；
图4为图2中屏幕发声器的立体分解结构示意图；
图5为图1中屏幕发声器沿A-A视角的磁钢组件中各磁钢的磁极方向示意图。
 本发明的实施方式
下面结合附图和实施方式对本发明作进一步说明。
实施例：
在本实施例中，提供一种电子设备，包括屏幕及与屏幕相连的屏幕发声器，其中，如图1-5所示，屏幕发声器包括第一功能组件1、连接于第一功能组件1的第二功能组件3，电子设备可以是手机、平板等，手机和平板包括中框和盖设于中框上的屏幕，屏幕发声器设置于中框和屏幕之间，第一功能组件1可以固定在中框上，第二功能组件3可以固定在屏幕上，当然，也可以是第一功能组件1固定于屏幕，第二功能组件3固定于中框的设置方式，第一功能组件1包括上盖11和固定连接于上盖11的线圈12，第一功能组件1包括上盖11和固定连接于上盖11的线圈12，第二功能组件3包括与上盖11相对间隔设置的下盖31和固定连接于下盖31靠近上盖11一侧的磁钢组件002，第一功能组件1和第二功能组件3之间由弹性结构2相连，上盖11包括位于中间位置的上盖板111及自上盖板111的周缘朝向下盖31方向延伸形成的周壁112，弹性结构2包括连接下盖31与周壁112的第一弹片21以及一端连接于上盖板111且另一端固定于磁钢组件002靠近上盖板111侧的第二弹片23。
第一功能组件1和第二功能组件3通过第一弹片21和第二弹片23的连接作用可以稳定连接，第一弹片21可以保证第一功能组件1和第二功能组件3之间的相对位置，从而保证磁间隙、平衡吸力及器件的整体性，当线圈12通交流电产生变化的磁场时，在与磁钢组件002的相互作用下，第一功能组件1和第二功能组件3之间会沿着垂直于上盖板111板面的方向相对振动，因此更能满足小体积情况下屏幕发声的需求。
第一弹片21为环形，下盖31具有自其边缘朝向上盖11延伸形成的凸台结构311，第一弹片21包括固定于凸台结构311的装配部及自装配部延伸并固定于周壁112的弹性部212；装配部的宽度大于弹性部212的宽度；弹性结构2还包括固定连接于弹性部212和周壁112之间的连接块22。
具体的，在本实施例中，第一弹片21呈框型，第一弹片21环绕在磁钢组件002的外侧且位于上盖11的周壁112端面和下盖31之间，第一弹片21在垂直于上盖板111方向上的轮廓投影与上盖11的周壁112对应，下盖31具有两凸台结构311，两凸台结构311分别位于两组磁钢组32的远离线圈12侧，对应的，第一弹片21的对应位置具有两装配部，第一弹片21通过两装配部分别与两凸台结构311固定，因此，第一弹片21能跟下盖31保持相对位置，抑制上盖11左右摇晃，第一弹片21的除装配部之外的其余部分即为弹性部212，由于凸台结构311凸出于下盖31的板面，弹性部212与下盖31的板面之间会形成间隔，即相当于弹性部212悬空，因此弹性部212能实现弹性功能，弹性部212通过连接块22与上盖11的周壁112固定连接，使得周壁112的端面与弹性部212之间具有间隔，从而实现上盖11与下盖31之间的弹性连接，且能保持上盖11与下盖31在平行于上盖板111的板面方向上的位置，即上盖11能相对下盖31在垂直于上盖板111的板面的方向上活动，第一弹性片能抑制上盖11相对下盖31左右摇摆，从而保证发声器件的整体性。在其他实施例中，第一弹片21可以不是框型，只要是能实现上盖11相对下盖31在垂直于上盖板111的板面的方向上活动连接的结构即可，在此并不作限制，例如，第一弹片21可以是条状，在这种情况下，下盖31具有两凸台结构311，两凸台结构311分别位于两组磁钢组32的远离线圈12侧，第一弹片21的中部为装配部，第一弹片21的两端为弹性部212，第一弹片21设置两片且分别通过装配部固定装配在对应的凸台结构311上，弹性部212的端部通过连接块22与上盖11的周壁112固定连接；在其他实施例中，凸台结构311也可以设置在下盖31周缘的其他位置，凸台结构311的数量也可以根据情况设置，例如设置三个、四个、五个、六个等。
磁钢组件002包括固定于下盖31且设于线圈12周侧的磁钢组32以及固定于磁钢组32的导磁件324，导磁件324与上盖板111相对设置并与第二弹片23固定连接。
导磁件324包括与上盖板111相对设置且与第二弹片23固定连接的第一导磁件3241以及自第一导磁件3241边缘朝向下盖31弯折延伸的第二导磁件3242，第二导磁件3242固定于磁钢组32并与周壁112间隔设置。
第一功能组件1还包括由线圈12环绕固定的铁芯13，线圈12的绕线方向平行于上盖板111的板面，线圈12的两轴向端面分别与周壁112围合形成装配间隔001，磁钢组件002容置于装配间隔001内。磁钢组32均包括自下盖31朝向上盖11依次固定连接的第一磁钢321、第二磁钢322和第三磁钢323，同组磁钢组32中的第一磁钢321和第三磁钢323的磁极方向相反且均平行于线圈12的绕线方向，第二磁钢322的磁极方向垂直于线圈12的绕线方向，不同组的磁钢组32中对应的第二磁钢322的磁极方向相反，不同组的磁钢组32中对应的第一磁钢321的磁极方向相同，不同组的磁钢组32中对应的第三磁钢323的磁极方向相同。
在本实施例中，磁钢组件002包括两磁钢组32，第二弹片23设置有四个且均与上盖板111一体成型，每组磁钢对应两个第二弹片23，第二弹片23自上盖板111倾斜地朝对应的磁钢组32延伸并抵顶在对应的磁钢组32的顶侧（磁钢组32的靠近上盖板111侧），具体为抵顶于导磁件324的顶侧（导磁件324的靠近上盖板111侧），且对应组的两第二弹片23相对于对应磁钢组32的中线对称，使弹力分布均匀，在第一弹片21结构和第二弹片23结构的配合下，可以使发声器件具有较好的整体性和稳定性。
两组磁钢组32中对应的第一磁钢321之间和第三磁钢323之间形成磁路，第二磁钢322的设置可以增强磁路，六磁钢的结构使得磁路更加高效，线圈12在通交变电流时会受到磁场的影响而产生第一驱动力，与此同时，线圈12通电后铁芯13形成极性与线圈12轴向方向相同的电磁铁，铁芯13受到磁场的影响会产生第二驱动力，在两驱动力的同向叠加作用下，能获得更高的驱动力，使第一功能组件1和第二功能组件3之间产生相对振动，从而满足小体积情况下屏幕发声的需求。
结合图1-4，第一功能组件1还包括设置于线圈12外侧且固定于上盖板111的固定套14，固定套14的两侧分别开设与铁芯13匹配的开口，铁芯13的两端分别嵌设于对应的开口内。具体的，固定套14呈U型，固定套14的两端具有朝外延伸的装配沿，固定套14包绕线圈12的远离上盖板111侧、及线圈12轴向的两个端面侧，装配沿固定于上盖板111，因此，线圈12能通过固定套14与上盖板111固定连接，在其他实施例中，固定套14也可以将线圈12整个包裹；铁芯13的长度大于线圈12的轴向厚度，铁芯13的两端面与固定套14的对应侧面平齐，从而使线圈12、铁芯13及固定套14的整体性更好。第一功能组件1还包括固定于上盖板111和线圈12之间的垫板15，垫板15也位于固定套14内，垫板15可以将线圈12和上盖板111隔离，避免线圈12直接与上盖板111接触，以对线圈12进行保护，垫板15可以采用弹性材料制成，例如泡棉、硅胶等。
电子设备还包括固定于上盖板111远离下盖31的一侧的第一固定板16、以及与线圈12电连接的线路板17。上盖11可以通过第一固定板16与电子设备的对应结构固定连接，线路板17可以使线圈12与电子设备电连接以传输电信号，从而使屏幕发声器件产生对应的震动信号。
电子设备还包括固定连接于下盖31的远离上盖11的一侧的缓冲板33、固定于缓冲板33的远离下盖31的一侧的第二固定板34、以及设置于第二固定板34的远离下盖31的一侧的胶层35。缓冲板33可以采用泡棉、硅胶等柔性材料，可以对下盖31进行缓冲，第二固定板34可以通过胶层35与电子设备固定，胶层35可以采用双面胶，胶层35也可以通过涂胶的方式实现。下盖31的两侧固定连接固定座312，固定座312通过螺钉313固定连接于第二固定板34，从而使下盖31与第二固定板34连接稳定。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (13)

  1. 一种屏幕发声器，包括第一功能组件、连接于所述第一功能组件的第二功能组件，所述第一功能组件包括上盖和固定连接于所述上盖的线圈，所述第二功能组件包括与所述上盖相对间隔设置的下盖和固定连接于所述下盖靠近所述上盖一侧的磁钢组件，其特征在于，所述第一功能组件和所述第二功能组件之间由弹性结构相连，所述上盖包括位于中间位置的上盖板及自所述上盖板的周缘朝向所述下盖方向延伸形成的周壁，所述弹性结构包括连接所述下盖与所述周壁的第一弹片以及一端连接于所述上盖板且另一端固定于所述磁钢组件靠近所述上盖板侧的第二弹片。
  2. 根据权利要求1所述的屏幕发声器，其特征在于，所述第一弹片为环形，所述下盖具有自其边缘朝向所述上盖延伸形成的凸台结构，所述第一弹片包括固定于所述凸台结构的装配部及自所述装配部延伸并固定于所述周壁的弹性部。
  3. 根据权利要求2所述的屏幕发声器，其特征在于，所述弹性结构还包括固定连接于所述弹性部和周壁之间的连接块。
  4. 根据权利要求2所述的屏幕发声器，其特征在于，所述装配部的宽度大于所述弹性部的宽度。
  5. 根据权利要求1所述的屏幕发声器，其特征在于，所述磁钢组件包括固定于所述下盖且设于所述线圈周侧的磁钢组以及固定于所述磁钢组的导磁件，所述导磁件与所述上盖板相对设置并与所述第二弹片固定连接。
  6. 根据权利要求5所述的屏幕发声器，其特征在于，所述磁钢组件包括两磁钢组，所述上盖板设置四个所述第二弹片，每个所述磁钢组对应两所述第二弹片。
  7. 根据权利要求5所述的屏幕发声器，其特征在于，所述导磁件包括与所述上盖板相对设置且与所述第二弹片固定连接的第一导磁件以及自所述第一导磁件边缘朝向所述下盖弯折延伸的第二导磁件，所述第二导磁件固定于所述磁钢组并与所述周壁间隔设置。
  8. 根据权利要求5所述的屏幕发声器，其特征在于，所述磁钢组均包括自所述下盖朝向所述上盖依次固定连接的第一磁钢、第二磁钢和第三磁钢，同组所述磁钢组中的所述第一磁钢和所述第三磁钢的磁极方向相反且均平行于所述线圈的绕线方向，所述第二磁钢的磁极方向垂直于所述线圈的绕线方向，不同组的所述磁钢组中对应的所述第二磁钢的磁极方向相反，不同组的所述磁钢组中对应的所述第一磁钢的磁极方向相同，不同组的所述磁钢组中对应的所述第三磁钢的磁极方向相同。
  9. 根据权利要求1所述的屏幕发声器，其特征在于，所述第一功能组件还包括由所述线圈环绕固定的铁芯，所述线圈的绕线方向平行于所述上盖板的板面，所述线圈的两轴向端面分别与所述周壁围合形成装配间隔，所述磁钢组件容置于所述装配间隔内。
  10. 根据权利要求9所述的屏幕发声器，其特征在于，所述第一功能组件还包括设置于所述线圈外侧且固定于所述上盖板的固定套及固定于所述上盖板和所述线圈之间的垫板，所述固定套的两侧分别开设与所述铁芯匹配的开口，所述铁芯的两端分别嵌设于对应的所述开口内。
  11. 一种电子设备，其特征在于，包括屏幕及与所述屏幕相连的、如权利要求1-10中任意一项所述的屏幕发声器。
  12. 根据权利要求11所述的电子设备，其特征在于，所述电子设备还包括固定于所述上盖板远离所述下盖的一侧的第一固定板、以及与所述线圈电连接的线路板。
  13. 根据权利要求11所述的电子设备，其特征在于，所述电子设备还包括固定连接于所述下盖的远离所述上盖的一侧的缓冲板、固定于所述缓冲板的远离所述下盖的一侧的第二固定板、以及设置于所述第二固定板的远离所述下盖的一侧的胶层，所述下盖的两侧固定连接固定座，所述固定座通过螺钉固定连接于所述第二固定板。
PCT/CN2019/123046 2019-11-25 2019-12-04 屏幕发声器及应用该屏幕发声器的电子设备 WO2021103075A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100103778A1 (en) * 2007-03-14 2010-04-29 Yun Gyu Kang Sensory signal output apparatus
CN109068244A (zh) * 2018-07-17 2018-12-21 歌尔股份有限公司 电磁激励器以及屏幕发声装置
CN109842701A (zh) * 2018-12-24 2019-06-04 歌尔股份有限公司 屏幕振动发声装置和电子产品
CN110177322A (zh) * 2019-05-15 2019-08-27 瑞声光电科技(常州)有限公司 屏幕发声激励器及电子设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4086823B2 (ja) * 2004-09-03 2008-05-14 Ｎｅｃアクセステクニカ株式会社 パネル型スピーカ、スピーカ一体型ディスプレイ及び電子装置
CN205491101U (zh) * 2015-12-31 2016-08-17 歌尔声学股份有限公司 具有振动功能和发声功能的多功能装置
CN108966093B (zh) * 2018-07-02 2022-01-07 歌尔股份有限公司 用于激励器的弹片、激励器以及屏幕发声装置
CN110049416B (zh) * 2019-04-23 2021-02-19 歌尔股份有限公司 振动发声装置以及电子产品
CN110166907B (zh) * 2019-05-15 2021-02-12 瑞声光电科技(常州)有限公司 发声装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100103778A1 (en) * 2007-03-14 2010-04-29 Yun Gyu Kang Sensory signal output apparatus
CN109068244A (zh) * 2018-07-17 2018-12-21 歌尔股份有限公司 电磁激励器以及屏幕发声装置
CN109842701A (zh) * 2018-12-24 2019-06-04 歌尔股份有限公司 屏幕振动发声装置和电子产品
CN110177322A (zh) * 2019-05-15 2019-08-27 瑞声光电科技(常州)有限公司 屏幕发声激励器及电子设备

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