WO2022110361A1 - 发声装置 - Google Patents

发声装置 Download PDF

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Publication number
WO2022110361A1
WO2022110361A1 PCT/CN2020/136916 CN2020136916W WO2022110361A1 WO 2022110361 A1 WO2022110361 A1 WO 2022110361A1 CN 2020136916 W CN2020136916 W CN 2020136916W WO 2022110361 A1 WO2022110361 A1 WO 2022110361A1
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WO
WIPO (PCT)
Prior art keywords
voice coil
sound
pad
lead
opening
Prior art date
Application number
PCT/CN2020/136916
Other languages
English (en)
French (fr)
Inventor
宋威
金鑫
钟志威
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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Publication date
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 WO2022110361A1 publication Critical patent/WO2022110361A1/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
    • H04R9/04—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 invention relates to the field of sound-electricity conversion, in particular to a sound-generating device.
  • the sound-generating device in the prior art includes a basin frame, a vibration system and a magnetic circuit system fixed to the basin frame, and the vibration system includes a vibrating membrane, a voice coil that drives the vibration membrane to vibrate, and a flexible circuit board that is electrically connected to the voice coil.
  • the diaphragm includes a skeleton provided with a through hole, the voice coil is arranged in the through hole of the skeleton, and the voice coil lead wire is provided on the voice coil, and the voice coil lead wire is pulled out to the outside of the voice coil.
  • the flexible circuit board includes pads welded with the voice coil leads, and the pads are arranged outside the voice coil.
  • the outside of the voice coil needs to preview enough space to accommodate the pads and facilitate the welding operation of the pads and the voice coil leads. Therefore, in the sound device When the size of the voice coil is determined, the size of the voice coil is limited, which affects the sound-producing performance of the sound-producing device.
  • An object of the present invention is to provide a sound generating device that can increase the size of the voice coil.
  • a sound-generating device comprising a basin frame, a vibration system and a magnetic circuit system fixed to the basin frame, the vibration system comprising a vibrating membrane, a voice coil that drives the vibrating membrane to vibrate, and a
  • the flexible circuit board to which the voice coil is electrically connected the voice coil includes a voice coil body with a hollow area, and a voice coil lead connected to the voice coil body, the flexible circuit board includes a voice coil located outside the voice coil a main body part and a pad part extending from the main body part to the hollow area of the voice coil, the projection of the pad part along the vibration direction of the diaphragm is at least partially located in the hollow area, and the voice coil leads connected to the pad portion.
  • the voice coil body includes an upper surface facing the diaphragm and a lower surface opposite to the upper surface, and the pad portion is arranged on a side of the upper surface away from the lower surface.
  • the diaphragm includes a dome, a sound membrane located on the outer periphery of the dome, and a frame supporting the dome and the sound membrane, the frame is provided with a through hole and a frame surrounding the through hole
  • the main body, the outer edge of the dome and the inner edge of the sound membrane are respectively fixed to the frame body, and the outer edge of the sound membrane is fixed to the basin frame.
  • the skeleton further includes a bearing portion and a protruding portion extending from the bearing portion away from the bearing portion, and the protruding portion is disposed opposite to the pad portion.
  • the orthographic projection of the pad portion on the plane where the protruding portion is located is located in the protruding portion.
  • the main body part of the flexible circuit board includes a fixing part connected to the basin frame and a connecting part connecting the fixing part and the pad part, and the sound membrane and the fixing part are respectively fixed to the
  • the frame further includes side walls bent and extended from the frame body in a direction away from the diaphragm, and the connection portion is located between the voice coil and the side walls.
  • the vibration system further includes an elastic support member spaced apart from the sound membrane, and the elastic support member is fixed to a side of the fixing portion of the flexible circuit board away from the basin frame.
  • the voice coil lead includes a first lead and a second lead, the first lead and the second lead respectively extend from the inner surface of the voice coil body, and the pad portion includes a first pad and a second lead. Two pads, the first pad is electrically connected to the first lead, and the second pad is electrically connected to the second lead.
  • the sounding device further includes a pole core disposed in the hollow area, the pole core is provided with an opening, and the first lead wire and the second lead wire pass through the opening.
  • the sounding device further includes a pole core disposed in the hollow area, the pole core is provided with a first opening and a second opening arranged at intervals, and the first lead is passed through the first opening , the second lead is penetrated in the second opening.
  • the beneficial effect of the present invention is that: the voice coil lead wire of the voice coil is arranged on the inner side of the voice coil, the pad part of the flexible circuit board is also correspondingly arranged on the inner side of the voice coil, and the voice coil lead wire and the voice coil lead wire do not need to be arranged on the outside of the voice coil.
  • the connected pad part does not need to reserve the space for the voice coil lead wire and the pad part welding operation on the outside of the voice coil.
  • the size of the voice coil is no longer limited by the welding process, which can achieve a larger voice coil circumference and improve the sound generation device sound performance.
  • Fig. 1 is the structural representation of the sounding device provided by the present invention
  • Fig. 2 is the exploded structure schematic diagram of the sounding device shown in Fig. 1;
  • Fig. 3 is the A-A sectional schematic diagram of the sounding device shown in Fig. 1;
  • FIG. 4 is a schematic structural diagram of a voice coil and a flexible circuit board in the sounding device shown in FIG. 1;
  • Fig. 5 is another perspective structural schematic diagram of the voice coil and the flexible circuit board in the sounding device shown in Fig. 1;
  • FIG. 6 is a schematic structural diagram of a voice coil, a flexible circuit board, a pole core and a skeleton in the sounding device shown in FIG. 1;
  • Fig. 7 is another angular structural schematic diagram of the voice coil, the flexible circuit board, the pole core and the skeleton in the sounding device shown in Fig. 6;
  • Fig. 8 is another angular structural schematic diagram of the voice coil, the flexible circuit board, the pole core and the skeleton in the sounding device shown in Fig. 6;
  • FIG. 9 is a schematic structural diagram of the skeleton in the sounding device shown in FIG. 1 .
  • FIG. 1 is a schematic structural diagram of a sounding device provided by the present invention
  • FIG. 2 is a schematic diagram of an explosion structure of the sounding device shown in FIG. 1
  • the present invention provides a sound generating device 100, which includes a basin frame 1, a vibration system 2 and a magnetic circuit system 3 fixed to the basin frame 1, and the basin frame 1 can provide support for the vibration system 2 and the magnetic circuit system 3.
  • the road system 3 can drive the vibration system 2 to vibrate and sound.
  • Figure 4 is a schematic structural diagram of the voice coil and the flexible circuit board in the sounding device shown in Figure 1;
  • Figure 5 is another perspective structural schematic diagram of the voice coil and the flexible circuit board in the sounding device shown in Figure 1.
  • the vibration system 2 includes a diaphragm 21 , a voice coil 22 that drives the diaphragm 21 to vibrate, and a flexible circuit board 23 that is electrically connected to the voice coil 22 .
  • the voice coil 22 includes a voice coil body 221 with a hollow area, and a voice coil lead 222 connected to the voice coil body 221 .
  • the voice coil body 221 may be annular, and the voice coil body 221 may include an inner surface 2211 surrounding the hollow area 227 , and the outer surface 2212 opposite to the inner surface 2211 , the voice coil lead 222 can be arranged on the side of the inner surface 2211 away from the outer surface 2212 , that is, the voice coil lead 222 can be arranged on the inner side of the voice coil 22 .
  • the flexible circuit board 23 includes a main body portion 231 located outside the voice coil 22 and a pad portion 232 extending from the main body portion 231 to the hollow area 227 of the voice coil 22.
  • the projection of the pad portion 232 along the vibration direction of the diaphragm 21 is at least Part of it is located in the hollow area 227 , that is, the pad portion 232 is also provided inside the voice coil 22 .
  • the voice coil lead 222 is connected to the pad part 232 to realize the electrical connection between the voice coil 22 and the flexible circuit board 23 .
  • the pad portion may be provided with pads that are electrically connected to the voice coil leads, and the voice coil leads are connected to the pads on the pad portion by welding.
  • the voice coil lead 222 of the voice coil 22 is arranged on the inner side of the voice coil 22, and the pad portion 232 of the flexible circuit board 23 is also at least partially arranged on the inner side of the voice coil 22.
  • the voice coil lead 222 and the pad portion 232 The position of the welding connection is also located inside the voice coil 22, the voice coil lead 222 and the pad portion 232 welded to the voice coil lead 222 do not need to be set on the outside of the voice coil 22, and the voice coil lead 222 does not need to be reserved on the outside of the voice coil 22.
  • the gap between the outer surface 2212 of the voice coil 22 and the adjacent structures can be set very small, the size of the voice coil 22 is no longer limited by the welding process, and a larger sound can be realized
  • the perimeter of the ring 22 increases the equivalent magnetic induction intensity of the magnetic circuit system 3 and improves the sound-producing performance of the sound-producing device 100 .
  • the voice coil body 221 includes an upper surface 2213 facing the diaphragm 21 and a lower surface 2214 opposite to the upper surface 2213 .
  • the end of the voice coil lead 222 connected to the pad portion 232 can extend beyond the upper surface 2213 of the voice coil body 221, and there is no structure around the surrounding that affects the welding operation, and there is no need to perform a gap between the inner surface of the voice coil body 221 and other components.
  • the welding operation is convenient, and the pad portion 232 can be welded with the voice coil lead 222 on the side of the upper surface 2213 of the voice coil body 221 away from the lower surface 2214 .
  • the pad portion and the voice coil body may be arranged at intervals, and the pad portion may also be adjacent to the upper surface of the voice coil body, and the upper surface of the voice coil body supports the pad portion.
  • Figure 6 is a schematic diagram of the structure of the voice coil, flexible circuit board, pole core and skeleton in the sounding device shown in Figure 1;
  • Figure 7 is the voice coil, flexible circuit board, Another angular structural schematic diagram of the pole core and the skeleton;
  • FIG. 8 is another angular structural schematic diagram of the voice coil, the flexible circuit board, the pole core and the skeleton in the sounding device shown in FIG. 6 ;
  • FIG. 9 is the skeleton in the sounding device shown in FIG. 1 .
  • the diaphragm 21 includes a dome 212, a sound film 211 located on the outer periphery of the dome 212, and a skeleton 213 supporting the dome 212 and the sound film 211.
  • the skeleton 213 is provided with a through hole 2132 and a skeleton body 2131 surrounding the through hole.
  • the outer edge and the inner edge of the sound membrane 211 are respectively fixed to the frame body 2131 , and the outer edge of the sound membrane 211 is fixed to the basin frame 1 .
  • the inner edge of the sound membrane 211 is fixed to the frame body 2131
  • the outer edge of the sound membrane 211 is fixed to the basin frame 1
  • the inner and outer edges of the sound membrane 211 can be well fixed by the frame body 2131 and the basin frame 1 .
  • the outer edge of the dome 212 and the inner edge of the sound membrane 211 can be well fixed by the frame 213 .
  • the through holes of the skeleton 213 can be used to accommodate the magnet system.
  • the frame 213 also includes a bearing portion 2133 for bearing the sound membrane 211 and the dome 212, and a protruding portion 2134 extending from the bearing portion 2133 to away from the bearing portion 2133.
  • the bearing portion 2133 is annular, and there is a through hole in the middle of the bearing portion 2133.
  • One end of the 2134 is connected to the bearing portion 2133 and the other end is disposed in the through hole, and the protruding portion 2134 is disposed opposite the pad portion 232 .
  • the protruding portion 2134 of the skeleton 213 shields and protects the pad portion 232 in the spatial direction.
  • the orthographic projection of the pad portion 232 on the plane where the protruding portion 2134 is located is located in the protruding portion 2134 . It can also be understood that the size of the protruding portion 2134 is greater than or equal to the size of the pad portion 232, and the protruding portion 2134 can completely cover the pad portion 232, thereby better shielding and protecting the pad portion 232.
  • the main body portion 231 of the flexible circuit board 23 may include a fixing portion 2311 connected to the pot frame 1 and a connecting portion 2312 connecting the fixing portion 2311 and the pad portion 232.
  • the fixing portion 2311 and the sound film 211 are located on both sides of the pot frame 1, and the sound film 211 and the fixing parts 2311 are respectively fixed on both sides of the basin frame 1 .
  • the frame 213 of the diaphragm 211 further includes a side wall 2135 bent and extended from the frame body 2131 to the direction away from the diaphragm 211 .
  • the flexible circuit board 23 is connected to the pad portion 232 through the connecting portion 2312 wound between the voice coil 22 and the side wall 2135 .
  • the connecting portion 2312 may be a curved structure.
  • the connecting portion 2312 may include a first sub-portion parallel to the upper surface of the voice coil 22 and a second sub-portion parallel to the outer surface of the voice coil 22, the first sub-portion is connected to the voice coil lead 222, and the fixing portion 2311 passes through the second sub-portion Connect with the first subsection.
  • the vibration system 2 further includes an elastic support member 24 spaced from the sound membrane 211 , and the elastic support member 24 is fixed to the side of the fixing portion 2311 of the flexible circuit board 23 away from the basin frame 1 .
  • the voice coil 22 is connected with the diaphragm 21 and the elastic support member 24 through the skeleton 213 , and the elastic support member 24 can effectively restrain the voice coil 22 from swinging and improve the reliability and stability of the sound generating device 100 .
  • the voice coil lead 222 includes a first lead 2221 and a second lead 2222.
  • the first lead 2221 extends from the inner surface of the voice coil body 221.
  • the pad portion 232 includes a first pad 2321 and a second pad 2322.
  • the first pad The 2321 is electrically connected to the first lead 2221
  • the second pad 2322 is electrically connected to the second lead 2222 .
  • the first pad 2321 and the second pad 2322 may be provided on the pad part 232 and insulated from each other.
  • the first lead 2221 may extend from the lower surface of the voice coil body 221
  • the second lead 2222 may extend from the upper surface of the voice coil body 221
  • both the first lead 2221 and the second lead 2222 extend toward the accommodating space of the voice coil body 221 .
  • the first pad 2321 and the second pad 2322 are arranged on the side of the pad portion 232 facing the voice coil body 221.
  • the first pad 2321 and the first pad 2321 The lead 2221 is connected by soldering, and the second pad 2322 and the second lead 2222 are connected by soldering.
  • the first lead includes a first lead body and a first end connected to the first pad, the first end can be arranged in a first direction, such as can be arranged in a direction substantially parallel to the first pad, the first lead body It can be arranged along the second direction, for example, it can be arranged along the direction substantially perpendicular to the first pad, the first end portion increases the area for welding with the first pad, and increases the firmness of the welding and the stability of the electrical connection.
  • the second lead may also include a second lead body and a second end connected to the second pad, and the second end may be disposed along the first direction, for example, may be disposed in a direction substantially parallel to the second pad , the second lead body may be disposed along the second direction, for example, may be disposed along the direction substantially perpendicular to the second pad.
  • the first pad and the second pad may also be disposed on the side of the pad portion away from the voice coil body.
  • the magnetic circuit system 3 further includes a pole core 31 disposed in the hollow area of the voice coil body 221 .
  • the pole core 31 may be provided with an opening 312 , and the first lead 2221 and the second lead 2222 pass through the opening 312 .
  • the pole core 31 is disposed in the hollow area of the voice coil body 221 , and the pole core 31 may be provided with an opening 312 for avoiding the first lead 2221 and the second lead 2222 .
  • the size of the opening 312 of the pole core 31 may be larger than the size of the protruding portion and the pad portion 232, so that the first pad and the second pad on the pad portion can be respectively connected with the first lead and the second lead of the voice coil.
  • the pole core is installed into the hollow area within the voice coil body.
  • the influence of the protruding part, the pad part 232 , the first lead 2221 and the second lead 2222 is avoided through the opening 282 .
  • One end of the pole core 31 close to the pad portion 232 is provided with an opening 312, and one end of the pole core 31 away from the pad portion 232 can also be provided with another opening, that is, the pole core 31 is provided with two symmetrical openings, and the pole core 31 is installed directly
  • the reverse installation can be installed into the hollow area of the voice coil 22 to facilitate the installation of the pole core 31 .
  • the end of the pole core 31 away from the pad portion 232 may not be provided with an opening.
  • the pole core 31 may also be provided with a first opening 313 and a second opening 314 arranged at intervals, the first lead 2221 is passed through the first opening 313 , and the second lead 2222 is passed through the second opening 314 .
  • the first opening 313 and the second opening 314 of the pole core 31 are spaced apart, the first lead 2221 and the second lead 2222 pass through different openings in the pole core 31 , and the first lead 2221 and the second lead 2222 are also spaced apart.
  • the positions of the first opening 313 , the second opening 314 , the first lead 2221 and the second lead 2222 can be set as required.
  • the magnetic circuit system 3 further includes an upper clamp plate 38 surrounding the outer side of the voice coil 22 , and the upper clamp plate 38 is disposed between the voice coil 22 and the skeleton 213 .
  • the upper clamping plate 38 and the pole core 31 may be located in the same plane.
  • the voice coil lead 222 is arranged on the inner side of the voice coil 22, and the pad portion 232 of the flexible circuit board 23 is also correspondingly arranged on the inner side of the voice coil 22. It is not necessary to reduce the width of the upper clamp plate 38 to accommodate the voice coil lead 222. The structural strength of the upper clamping plate 38 can be improved.
  • the magnetic circuit system 3 may further include a main magnetic steel 32 , a first auxiliary magnetic steel 33 , a second auxiliary magnetic steel 34 , a third auxiliary magnetic steel 35 , a fourth auxiliary magnetic steel 36 , and a magnetic yoke 37 .
  • the first auxiliary magnetic steel 33, the second auxiliary magnetic steel 34, the third auxiliary magnetic steel 35 and the fourth auxiliary magnetic steel 36 are arranged around the periphery of the main magnetic steel 32, and the first auxiliary magnetic steel 33 and the second auxiliary magnetic steel 34.
  • the yoke 37 is arranged on the side of the main magnet 32 away from the vibrating film 21.
  • the main magnet 32, the first auxiliary magnet 33, the second auxiliary magnet 34, the third auxiliary magnet 35, and the fourth auxiliary magnet 36 can be fixed. They are provided on the yoke 37 and are spaced apart from each other.
  • the yoke 37 and the upper clamping plate 38 can clamp and fix the first secondary magnet 33 , the second secondary magnet 34 , the third secondary magnet 35 and the fourth secondary magnet 36 from both sides.
  • the main magnetic steel 32 can be a regular structure, for example, the main magnetic steel 32 can be a cuboid structure, the first auxiliary magnetic steel 33 and the first side of the main magnetic steel 32 are spaced apart from each other to form a first gap, and the second auxiliary magnetic steel 34 and The second side surfaces of the main magnetic steel 32 are spaced apart from each other to form a second gap, the third auxiliary magnetic steel 35 and the third side surface of the main magnetic steel 32 are spaced apart from each other to form a third gap, and the fourth auxiliary magnetic steel 36 and the main magnetic steel 36 are spaced apart from each other to form a third gap.
  • the fourth sides of the steel 32 are spaced apart from each other to form a fourth gap, and the fourth gap, the third gap, the second gap, and the first gap communicate with each other to form a magnetic gap.
  • the first side, the second side, the third side and the fourth side of the main magnet 32 are connected in sequence.
  • the structure of the first auxiliary magnetic steel 33 may be different from that of the second auxiliary magnetic steel 34.
  • the first auxiliary magnetic steel 33 may be a regular cuboid structure
  • the second auxiliary magnetic steel 34 may include a first part and a second part. The second part is provided on the side of the first part.
  • the structure of the third secondary magnetic steel 35 may be the same as that of the first secondary magnetic steel 33
  • the structure of the fourth secondary magnetic steel 36 may be the same as that of the second secondary magnetic steel 34 .
  • the structures of the first auxiliary magnetic steel 33 , the second auxiliary magnetic steel 34 , the third auxiliary magnetic steel 35 and the fourth auxiliary magnetic steel 36 may also be the same.
  • the structure of the main magnetic steel 32 is not limited to this.
  • the main magnetic steel 32 may also have other regular structures, or the main magnetic steel 32 may also have an irregular structure.

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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

本发明提供了一种发声装置，发声装置，包括盆架以及固接于所述盆架的振动系统和磁路系统，所述振动系统包括振膜、驱动所述振膜振动的音圈和与所述音圈电连接的柔性电路板，所述音圈包括设有中空区域的音圈本体、以及与所述音圈本体连接的音圈引线，其特征在于，所述柔性电路板包括位于所述音圈外侧的主体部和自所述主体部向所述音圈的中空区域延伸的焊盘部，所述焊盘部沿振膜的振动方向上的投影至少部分位于所述中空区域，所述音圈引线与所述焊盘部连接。音圈外侧不需要设置音圈引线和焊盘部，音圈外侧也不需要预留音圈引线和焊盘部焊接操作的空间，音圈尺寸不再受限于焊接工序，可实现更大的音圈周长，提高发声装置的发声性能。

Description

发声装置
本发明要求于2020年11月30日提交中国专利局、申请号为202022840011.4、发明名称为“发声装置”的中国专利申请的优先权，其全部内容通过引用结合在本发明中。
技术领域
本发明涉及声电转换领域，尤其涉及一种发声装置。
 背景技术
现有技术的发声装置包括盆架以及固接于盆架的振动系统和磁路系统，振动系统包括振膜、驱动振膜振动的音圈和与音圈电连接的柔性电路板。其中，振膜包括设有通孔的骨架，音圈设置在骨架的通孔内，音圈上设有音圈引线，音圈引线向音圈外侧拉出。柔性电路板包括与音圈引线焊接的焊盘，焊盘设置于音圈外侧，音圈外侧需要预览足够的空间以容纳焊盘，以及方便焊盘和音圈引线的焊接操作，因此，在发声装置的尺寸确定的情况下，音圈的尺寸受限，影响发声装置的发声性能。
因此，有必要提供一种改进的发声装置来解决上述问题。
 技术问题
本发明的目的在于提供一种可以增大音圈尺寸的发声装置。
 技术解决方案
本发明的技术方案如下：一种发声装置，包括盆架以及固接于所述盆架的振动系统和磁路系统，所述振动系统包括振膜、驱动所述振膜振动的音圈和与所述音圈电连接的柔性电路板，所述音圈包括设有中空区域的音圈本体、以及与所述音圈本体连接的音圈引线，所述柔性电路板包括位于所述音圈外侧的主体部和自所述主体部向所述音圈的中空区域延伸的焊盘部，所述焊盘部沿振膜的振动方向上的投影至少部分位于所述中空区域，所述音圈引线与所述焊盘部连接。
优选的，所述音圈本体包括朝向所述振膜的上表面和与所述上表面相对设置的下表面，所述焊盘部设置于上表面背离所述下表面一侧。
优选的，所述振膜包括球顶、位于所述球顶外周的音膜以及支撑所述球顶和所述音膜的骨架，所述骨架设有通孔以及围绕形成所述通孔的骨架主体，所述球顶的外边缘和所述音膜的内边缘分别固定于所述骨架主体，所述音膜的外边缘固定于所述盆架。
优选的，所述骨架还包括承载部和自所述承载部向远离所述承载部延伸的凸出部，所述凸出部相对所述焊盘部设置。
优选的，所述焊盘部在所述凸出部所在平面的正投影位于所述凸出部内。
优选的，所述柔性线路板的主体部包括与所述盆架连接的固定部和连接所述固定部和所述焊盘部的连接部，所述音膜和所述固定部分别固定于所述盆架的两侧，所述骨架还包括自所述骨架主体向远离所述振膜的方向弯折延伸的侧壁，所述连接部位于所述音圈和所述侧壁之间。
优选的，所述振动系统还包括与所述音膜间隔设置的弹性支撑件，所述弹性支撑件固定于所述柔性线路板的固定部的远离所述盆架的一侧。
优选的，所述音圈引线包括第一引线和第二引线，所述第一引线和第二引线分别自所述音圈本体的内表面延伸，所述焊盘部包括第一焊盘和第二焊盘，所述第一焊盘与所述第一引线电性连接，所述第二焊盘与所述第二引线电性连接。
优选的，所述发声装置还包括设置于所述中空区域的极芯，所述极芯设有开口，所述第一引线和第二引线穿设于所述开口。
优选的，所述发声装置还包括设置于所述中空区域的极芯，所述极芯设有间隔设置的第一开口和第二开口，所述第一引线穿设于所述第一开口内，所述第二引线穿设于所述第二开口内。
 有益效果
本发明的有益效果在于：音圈的音圈引线设置在音圈的内侧，柔性电路板的焊盘部也对应设置在音圈的内侧，音圈外侧不需要设置音圈引线和与音圈引线连接的焊盘部，音圈外侧也不需要预留音圈引线和焊盘部焊接操作的空间，音圈尺寸不再受限于焊接工序，可实现更大的音圈周长，提高发声装置的发声性能。
 附图说明
图1为本发明提供的发声装置的结构示意图；
图2为图1所示发声装置的爆炸结构示意图；
图3为图1所示发声装置的A-A剖面示意图；
图4为图1所示发声装置中音圈和柔性电路板的结构示意图；
图5为图1所示发声装置中音圈和柔性电路板的另一角度结构示意图；
图6为图1所示发声装置中音圈、柔性电路板、极芯和骨架的结构示意图；
图7为图6所示发声装置中音圈、柔性电路板、极芯和骨架的另一角度结构示意图；
图8为图6所示发声装置中音圈、柔性电路板、极芯和骨架的另一角度结构示意图；
图9为图1所示发声装置中骨架的结构示意图。
 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。
请参阅图1至图3，图1为本发明提供的发声装置的结构示意图；图2为图1所示发声装置的爆炸结构示意图；图3为图1所示发声装置的A-A剖面示意图。本发明提供了一种发声装置100，其包括盆架1、以及固接于盆架1的振动系统2和磁路系统3，盆架1可以为振动系统2和磁路系统3提供支撑，磁路系统3可以驱动振动系统2振动发声。
请结合图4和图5，图4为图1所示发声装置中音圈和柔性电路板的结构示意图；图5为图1所示发声装置中音圈和柔性电路板的另一角度结构示意图。振动系统2包括振膜21、驱动振膜21振动的音圈22和与音圈22电连接的柔性电路板23。音圈22包括设有中空区域的音圈本体221、以及与音圈本体221连接的音圈引线222，音圈本体221可以为环形，音圈本体221可以包括围绕形成中空区域227的内表面2211、以及与内表面2211相对设置的外表面2212，音圈引线222可以设置于内表面2211背离外表面2212一侧，即音圈引线222可以设置于音圈22的内侧。柔性电路板23包括位于音圈22外侧的主体部231和自主体部231向音圈22的中空区227域延伸的焊盘部232，焊盘部232沿振膜21的振动方向上的投影至少部分位于中空区域227，即焊盘部232也设置于音圈22内侧。音圈引线222与焊盘部232连接，以实现音圈22和柔性电路板23的电连接。例如，焊盘部上可以设有与音圈引线电连接的焊盘，音圈引线与焊盘部上的焊盘焊接连接。
可以理解的，音圈22的音圈引线222设置在音圈22的内侧，柔性电路板23的焊盘部232也至少部分对应设置在音圈22的内侧，音圈引线222和焊盘部232焊接连接的位置也位于音圈22的内侧，音圈22外侧不需要设置音圈引线222和与音圈引线222焊接连接的焊盘部232，音圈22的外侧不需要预留音圈引线222和焊盘部232焊接操作的空间，音圈22的外表面2212和相邻的结构之间的间隙可以设置的很小，音圈22尺寸不再受限于焊接工序，可实现更大的音圈22周长，提高磁路系统3的等效磁感应强度，提高发声装置100的发声性能。
其中，音圈本体221包括朝向振膜21的上表面2213和与上表面2213相对设置的下表面2214，焊盘部232设置于上表面2213背离下表面2214一侧。音圈引线222与焊盘部232连接的端部可以超出音圈本体221的上表面2213，周边没有影响焊接操作的结构，不需要在音圈本体221的内表面和其他部件的间隙之间进行焊接操作，方便焊盘部232可以在音圈本体221的上表面2213背离下表面2214一侧与音圈引线222焊接操作。
其中，焊盘部与音圈本体可以间隔设置，焊盘部也可以邻接音圈本体的上表面，音圈本体的上表面承载焊盘部。
请结合图6至图9，图6为图1所示发声装置中音圈、柔性电路板、极芯和骨架的结构示意图；图7为图6所示发声装置中音圈、柔性电路板、极芯和骨架的另一角度结构示意图；图8为图6所示发声装置中音圈、柔性电路板、极芯和骨架的另一角度结构示意图；图9为图1所示发声装置中骨架的结构示意图。振膜21包括球顶212、位于球顶212外周的音膜211以及支撑球顶212和音膜211的骨架213，骨架213设有通孔2132以及围绕形成通孔的骨架主体2131，球顶212的外边缘和音膜211的内边缘分别固定于骨架主体2131，音膜211的外边缘固定于盆架1。音膜211的内边缘固定于骨架主体2131，音膜211的外边缘固定于盆架1，音膜211内外边缘通过骨架主体2131和盆架1可以好的固定。球顶212外边缘和音膜211内边缘通过骨架213可以很好固定。骨架213的通孔可以用于容纳磁体系统。
骨架213还包括承载音膜211和球顶212的承载部2133和自承载部2133向远离承载部2133延伸的凸出部2134，承载部2133为环形，承载部2133中间具有通孔，凸出部2134一端与承载部2133连接另一端设置于通孔内，凸出部2134相对焊盘部232设置。骨架213的凸出部2134在空间方向上遮挡和保护焊盘部232。
焊盘部232在凸出部2134所在平面的正投影位于凸出部2134内。也可以理解为，凸出部2134的尺寸大于或等于焊盘部232的尺寸，凸出部2134可以完全覆盖焊盘部232，从而更好的遮挡和保护焊盘部232。
柔性线路板23的主体部231可以包括与盆架1连接的固定部2311和连接固定部2311和焊盘部232的连接部2312，固定部2311和音膜211位于盆架1两侧，音膜211和固定部2311分别固定于盆架1的两侧。振膜211的骨架213还包括自骨架主体2131向远离振膜211的方向弯折延伸的侧壁2135，侧壁2135围绕音圈本体设置，连接部2312位于音圈22和侧壁2135之间。柔性线路板23通过绕设于音圈22和侧壁2135之间连接部2312与焊盘部232连接。其中，连接部2312可以为弯曲结构。连接部2312可以包括与音圈22上表面平行的第一子部和与音圈22外表面平行的第二子部，第一子部与音圈引线222连接，固定部2311通过第二子部与第一子部连接。
振动系统2还包括与音膜211间隔设置的弹性支撑件24，弹性支撑件24固定于柔性线路板23的固定部2311的远离盆架1的一侧。音圈22通过骨架213与振膜21、弹性支撑件24连接在一起，弹性支撑件24可以有效抑制音圈22摆动，提高发声器件100的可靠性和稳定性。
音圈引线222包括第一引线2221和第二引线2222，第一引线2221自音圈本体221的内表面延伸，焊盘部232包括第一焊盘2321和第二焊盘2322，第一焊盘2321与第一引线2221电性连接，第二焊盘2322与第二引线2222电性连接。第一焊盘2321和第二焊盘2322可以设置在焊盘部232上，且相互之间绝缘。第一引线2221可以自音圈本体221的下表面延伸，第二引线2222可以自音圈本体221的上表面延伸，第一引线2221和第二引线2222均朝向音圈本体221的容纳空间方向延伸，并且都延伸到音圈本体221上表面背离下表面一侧，第一焊盘2321和第二焊盘2322设置于焊盘部232朝向音圈本体221一侧，第一焊盘2321和第一引线2221焊接连接，第二焊盘2322和第二引线2222焊接连接。
第一引线包括第一引线本体和与第一焊盘连接的第一端部，第一端部可以沿第一方向设置，如可以沿大致平行于第一焊盘的方向设置，第一引线本体可以沿第二方向设置，如可以沿大致垂直于第一焊盘的方向设置，第一端部增大了与第一焊盘焊接的区域，增加了焊接的牢固度以及电连接的稳定性。同样的，第二引线也可以包括第二引线本体和与第二焊盘连接的第二端部，第二端部可以沿第一方向设置，如可以沿大致平行于第二焊盘的方向设置，第二引线本体可以沿第二方向设置，如可以沿大致垂直于第二焊盘的方向设置。
在其他一些实施例中，第一焊盘和第二焊盘也可以设置于焊盘部背离音圈本体一侧。
磁路系统3还包括设置于音圈本体221的中空区域内的极芯31，极芯31可以设有开口312，第一引线2221和第二引线2222穿设于开口312。极芯31设置在音圈本体221的中空区域内，极芯31可以设有避让第一引线2221和第二引线2222的开口312。极芯31的开口312的尺寸可以大于凸出部和焊盘部232的尺寸，从而可以先将焊盘部上的第一焊盘和第二焊盘分别与音圈的第一引线和第二引线焊接后，再将极芯安装进音圈本体内的中空区域。安装极芯的过程中，通过开口282避开凸出部、焊盘部232、第一引线2221和第二引线2222的影响。
其中，极芯31靠近焊盘部232的一端设置有开口312，极芯31远离焊盘部232的一端也可以设置另一开口，即极芯31设置有对称的两个开口，极芯31正装反装都可以安装进音圈22的中空区域内，方便安装极芯31。当然，极芯31远离焊盘部232的一端也可以不设置开口。
可选的，极芯31也可以设有间隔设置的第一开口313和第二开口314，第一引线2221穿设于第一开口313内，第二引线2222穿设于第二开口314内。
极芯31的第一开口313和第二开口314间隔设置，第一引线2221和第二引线2222穿设于在极芯31不同的开口内，第一引线2221和第二引线2222也间隔设置。可以根据需要设置第一开口313、第二开口314、第一引线2221和第二引线2222的位置。
本发明中，磁路系统3还包括围设在音圈22外侧的上夹板38，上夹板38设置在音圈22和骨架213之间。发声器件100组装后，上夹板38和极芯31可以位于同一平面内。可以理解的，音圈引线222设置在音圈22内侧，柔性线路板23的焊盘部232也对应设置在音圈22内侧，不需要减小上夹板38的的宽度以容纳音圈引线222，可以提高上夹板38的结构强度。
磁路系统3还可以包括主磁钢32、第一副磁钢33、第二副磁钢34、第三副磁钢35、第四副磁钢36、磁轭37。第一副磁钢33、第二副磁钢34、第三副磁钢35和第四副磁钢36围设在主磁钢32的周缘，且第一副磁钢33、第二副磁钢34、第三副磁钢35均与主磁钢32之间具有磁间隙，音圈23的一部分插入至磁间隙内。磁轭37设置在主磁钢32远离振膜21一侧，主磁钢32、第一副磁钢33、第二副磁钢34、第三副磁钢35、第四副磁钢36可以固设在磁轭37上，且相互之间间隔设置。磁轭37可以和上夹板38从两侧夹持固定第一副磁钢33、第二副磁钢34、第三副磁钢35、第四副磁钢36。
主磁钢32可以为规则结构，比如主磁钢32可以为长方体结构，第一副磁钢33与主磁钢32的第一侧面相互间隔设置以形成第一间隙，第二副磁钢34与主磁钢32的第二侧面相互间隔设置以形成第二间隙，第三副磁钢35与主磁钢32的第三侧面相互间隔设置以形成第三间隙，第四副磁钢36与主磁钢32的第四侧面相互间隔设置以形成第四间隙，第四间隙、第三间隙、第二间隙和第一间隙相互连通以形成磁间隙。其中，主磁钢32的第一侧面、第二侧面、第三侧面和第四侧面顺次连接。第一副磁钢33的结构与第二副磁钢34的结构可以不同，比如第一副磁钢33可以为规则的长方体结构，第二副磁钢34可以包括第一部和第二部，第二部设置在第一部的侧面上。第三副磁钢35的结构可以与第一副磁钢33的结构相同，第四副磁钢36的结构可以与第二副磁钢34的结构相同。在其他一些实施例中，第一副磁钢33、第二副磁钢34、第三副磁钢35和第四副磁钢36的结构也可以均相同。
需要说明的是，主磁钢32的结构并不限于此，比如主磁钢32也可以为其他规则结构，或者主磁钢32也可以不规则结构。
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 (10)

  1. 一种发声装置，包括盆架以及固接于所述盆架的振动系统和磁路系统，所述振动系统包括振膜、驱动所述振膜振动的音圈和与所述音圈电连接的柔性电路板，所述音圈包括设有中空区域的音圈本体、以及与所述音圈本体连接的音圈引线，其特征在于，所述柔性电路板包括位于所述音圈外侧的主体部和自所述主体部向所述音圈的中空区域延伸的焊盘部，所述焊盘部沿振膜的振动方向上的投影至少部分位于所述中空区域，所述音圈引线与所述焊盘部连接。
  2. 根据权利要求1所述的发声装置，其特征在于：所述音圈本体包括朝向所述振膜的上表面和与所述上表面相对设置的下表面，所述焊盘部设置于上表面背离所述下表面一侧。
  3. 根据权利要求2所述的发声装置，其特征在于：所述振膜包括球顶、位于所述球顶外周的音膜以及支撑所述球顶和所述音膜的骨架，所述骨架设有通孔以及围绕形成所述通孔的骨架主体，所述球顶的外边缘和所述音膜的内边缘分别固定于所述骨架主体，所述音膜的外边缘固定于所述盆架。
  4. 根据权利要求3所述的发声装置，其特征在于：所述骨架还包括承载所述球顶的承载部和自所述承载部向远离所述承载部延伸的凸出部，所述凸出部相对所述焊盘部设置。
  5. 根据权利要求4所述的发声装置，其特征在于：所述焊盘部在所述凸出部所在平面的正投影位于所述凸出部内。
  6. 根据权利要求3所述的发声装置，其特征在于：所述柔性线路板的主体部包括与所述盆架连接的固定部和连接所述固定部和所述焊盘部的连接部，所述音膜和所述固定部分别固定于所述盆架的两侧，所述骨架还包括自所述骨架主体向远离所述振膜的方向弯折延伸的侧壁，所述连接部位于所述音圈和所述侧壁之间。
  7. 根据权利要求6所述的发声装置，其特征在于：所述振动系统还包括与所述音膜间隔设置的弹性支撑件，所述弹性支撑件固定于所述柔性线路板的固定部的远离所述盆架的一侧。
  8. 根据权利要求1所述的发声装置，其特征在于：所述音圈引线包括第一引线和第二引线，所述第一引线自所述音圈本体的内表面延伸，所述焊盘部包括第一焊盘和第二焊盘，所述第一焊盘与所述第一引线电性连接，所述第二焊盘与所述第二引线电性连接。
  9. 根据权利要求8所述的发声装置，其特征在于：所述发声装置还包括设置于所述中空区域的极芯，所述极芯设有开口，所述第一引线和第二引线穿设于所述开口。
  10. 根据权利要求8所述的发声装置，其特征在于：所述发声装置还包括设置于所述中空区域的极芯，所述极芯设有间隔设置的第一开口和第二开口，所述第一引线穿设于所述第一开口内，所述第二引线穿设于所述第二开口内。
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