CN110166910B - speaker - Google Patents

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Publication number
CN110166910B
CN110166910B CN201910488209.XA CN201910488209A CN110166910B CN 110166910 B CN110166910 B CN 110166910B CN 201910488209 A CN201910488209 A CN 201910488209A CN 110166910 B CN110166910 B CN 110166910B
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CN
China
Prior art keywords
annular
plate
magnetic
voice coil
vibration
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Expired - Fee Related
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CN201910488209.XA
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Chinese (zh)
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CN110166910A (en
Inventor
宋威
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AAC Technologies Holdings Shenzhen Co Ltd
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AAC Acoustic Technologies Shenzhen Co Ltd
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Publication of CN110166910A publication Critical patent/CN110166910A/en
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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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
    • 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
    • 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

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

Abstract

The invention provides a loudspeaker, which comprises a basin frame, a vibration system and a magnetic circuit system, wherein the basin frame comprises a bottom frame used for accommodating the magnetic circuit system and a top cover fixed on the magnetic circuit system, the vibration system comprises a first annular vibration film, a second annular vibration film, an annular dome, a voice coil, an annular framework and a connecting framework, the outer side of the first annular vibration film is connected with the bottom frame, the inner side of the first annular vibration film is connected with the annular bottom of the annular framework, the annular top of the annular framework is connected with the outer side of the annular dome, the outer side of the second annular vibration film is connected with the inner side of the annular dome, the inner side of the second annular vibration film is connected with the top cover, one end of the connecting framework is connected with the voice coil, and. The loudspeaker provided by the invention has the advantages that the vibration system is arranged and adopts a double-vibrating-diaphragm structure of the first annular vibrating diaphragm and the second annular vibrating diaphragm, so that the vibration of the vibration system is more balanced, noise caused by vibration unbalance is effectively reduced, and the tone quality is effectively improved.

Description

Loudspeaker
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of acoustic design, in particular to a loudspeaker.
[ background of the invention ]
With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among many mobile devices, a mobile phone is undoubtedly the most common mobile terminal device. At present, mobile phones have various functions, one of which is a high-quality music function, and a speaker in the mobile phone is one of the necessary conditions for realizing the high-quality function.
The existing loudspeaker comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are installed on the basin frame, the vibration system comprises a vibrating diaphragm, an annular ball top, a framework and a voice coil, the annular ball top is connected with the vibrating diaphragm, and the voice coil is connected with the annular ball top through the framework in the vibration direction so as to drive the vibrating diaphragm to vibrate and produce sound. The structure of the existing loudspeaker adopts the design mode of a single diaphragm, so that the vibration of a vibration system is unbalanced, and more noise exists.
Therefore, it is necessary to develop a new speaker to solve the above problems.
[ summary of the invention ]
The invention aims to provide a loudspeaker, which can enable the vibration of a vibration system to be more balanced, effectively reduce noise caused by vibration imbalance and effectively improve the tone quality.
The purpose of the invention is realized by adopting the following technical scheme:
a loudspeaker comprises a vibration system, a magnetic circuit system used for driving the vibration system to generate sound through vibration and a basin frame used for supplying the vibration system and the magnetic circuit system to be installed, wherein the basin frame comprises a bottom frame used for accommodating the magnetic circuit system and a top cover fixed on the magnetic circuit system, the vibration system comprises a first annular vibrating diaphragm, a second annular vibrating diaphragm, an annular dome, a voice coil, an annular framework and a connecting framework, the outer side of the first annular vibrating diaphragm is connected with the bottom frame, the inner side of the first annular vibrating diaphragm is connected with the annular bottom of the annular framework, the annular top of the annular framework is connected with the outer side of the annular dome, the outer side of the second annular vibrating diaphragm is connected with the inner side of the annular dome, the inner side of the second annular vibrating diaphragm is connected with the top cover, one end of the connecting framework is connected with the voice coil, The other end is connected with the annular dome.
As a modification, the magnetic circuit system is located inside the second annular diaphragm.
As an improvement, the magnetic circuit system includes a magnetic conduction plate installed in the middle of the bottom frame, a main magnetic steel arranged in the middle of the magnetic conduction plate, four auxiliary magnetic steels arranged on the magnetic conduction plate and surrounding the main magnetic steel, a main pole core attached to one side of the main magnetic steel far away from the magnetic conduction plate, and four auxiliary pole cores attached to one side of the four auxiliary magnetic steels far away from the magnetic conduction plate, respectively, the main magnetic steel and the auxiliary magnetic steels are arranged at intervals, and the voice coil is movably sleeved outside the main magnetic steel.
As an improvement mode, the underframe comprises a bottom plate and a first side plate convexly arranged at the edge of the bottom plate, the outer side of the first annular vibrating diaphragm is connected with the first side plate, a through hole is formed in the middle of the bottom plate, and the magnetic conducting plate is embedded in the through hole.
As an improvement, the top cover includes a top plate, a protrusion protruding from the middle of the top plate, and a second side plate protruding from the edge of the top plate, one side of the protrusion away from the top plate is connected to the magnetic circuit system, the inner side of the second annular diaphragm is connected to the second side plate, and the voice coil is movably sleeved outside the protrusion.
As an improvement, the number of the connecting skeletons is two, and the two connecting skeletons extend from two opposite sides of the voice coil to be connected with the annular dome respectively.
As an improved mode, an avoiding notch for avoiding the second side plate is concavely arranged on one side of each connecting framework facing the second side plate.
As an improvement, each of the connection skeletons includes a first extension portion, a second extension portion and a third extension portion, the first extension portion is disposed at the side of the voice coil at an interval, the second extension portion and the third extension portion are respectively connected to the outer side wall of the voice coil from two ends of the first extension portion along a direction perpendicular to the vibration direction of the voice coil, the first extension portion is connected to the annular dome, and the avoidance gap is disposed in the second extension portion and the third extension portion.
As an improvement, the first annular diaphragm includes a first folding ring, a first fixing portion located inside the first folding ring, and a second fixing portion located outside the first folding ring, the first fixing portion is connected to the outside of the annular dome, and the second fixing portion is connected to the bottom frame; the second annular vibrating diaphragm comprises a second folding ring, a third fixing part and a fourth fixing part, the third fixing part is located on the inner side of the second folding ring, the fourth fixing part is located on the outer side of the second folding ring, the third fixing part is connected with the top cover, and the fourth fixing part is connected with the inner side of the annular ball top.
As an improvement, the first folding ring is an arc-shaped structure with two ends respectively bending and protruding from the first fixing part and the second fixing part towards the direction of the bottom frame; the second folding ring is of an arc-shaped structure with two ends respectively bent and convexly arranged from the third fixing part and the fourth fixing part towards the direction far away from the bottom frame.
Compared with the prior art, the vibration system comprises the double-vibration-membrane structure of the first annular vibration membrane and the second annular vibration membrane, so that the vibration of the vibration system is more balanced, noise caused by unbalanced vibration is effectively reduced, and the tone quality is effectively improved; in addition, through foretell connected mode, first annular vibrating diaphragm, second annular vibrating diaphragm, annular dome, annular skeleton, underframe and top cap are whole can enclose and close a formation sealed space, guarantee the leakproofness.
[ description of the drawings ]
Fig. 1 is a schematic top view of a speaker according to an embodiment of the present invention;
FIG. 2 is a schematic partial cross-sectional view of section A-A of FIG. 1;
fig. 3 is an exploded view of a speaker according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a top cover according to an embodiment of the present invention;
FIG. 5 is an exploded view of a vibration system provided by an embodiment of the present invention;
fig. 6 is an exploded view of a magnetic circuit system according to an embodiment of the present invention;
fig. 7 is a schematic connection diagram of a voice coil and a connection bobbin according to an embodiment of the present invention.
[ detailed description ] embodiments
The invention is further described with reference to the following figures and embodiments.
It should be noted that all directional indicators (such as upper, lower, left, right, front, back, inner, outer, top, bottom … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Referring to fig. 1 to 7, a speaker 100 according to an embodiment of the present invention includes a frame 10, a vibration system 20 mounted on the frame 10, and a magnetic circuit system 30 mounted on the frame 10 for driving the vibration system 20 to vibrate and generate sound.
The basin stand 10 comprises a bottom frame 11 for accommodating the magnetic circuit system 30 and a top cover 12 fixed on the magnetic circuit system 30, wherein the bottom frame 11 comprises a bottom plate 111 and a first side plate 112 protruding from the edge of the bottom plate 111, the top cover 12 comprises a top plate 121, a second side plate 122 protruding from the edge of the top plate, and a projection 123 protruding from the middle of the top plate 121, and one side of the projection 123 far away from the top plate 121 is connected with the magnetic circuit system 30. Preferably, the bottom plate 111 and the top plate 121 are arranged in parallel, the first side plate 112 extends from an edge of the bottom plate 111 toward a side of the top plate 121, and the second side plate 122 extends from an edge of the top plate 121 toward the side of the bottom plate 111.
Vibration system 20 includes first annular vibrating diaphragm 21, second annular vibrating diaphragm 22, annular dome 23, voice coil 24, annular skeleton 25 and connection skeleton 26, the outside and the underframe 11 of first annular vibrating diaphragm 21 are connected, specifically be connected with first curb plate 112, the inboard of first annular vibrating diaphragm 21 is connected with the annular bottom of annular skeleton 25, the annular top and the outside of annular dome 23 of annular skeleton 25 are connected, the outside and the inboard of annular dome 23 of second annular vibrating diaphragm 22 are connected, the inboard and the top cap 12 of second annular vibrating diaphragm 22 are connected, specifically be connected with second curb plate 122, the one end of connecting skeleton 26 is connected with voice coil 24, the other end is connected with annular dome 23. By arranging the vibration system 20 to have a double-diaphragm structure including the first annular diaphragm 21 and the second annular diaphragm 22, the vibration of the vibration system 20 can be more balanced, noise caused by vibration imbalance can be effectively reduced, and the tone quality can be effectively improved; in addition, through the above connection manner, the first annular diaphragm 21, the second annular diaphragm 22, the annular dome 23, the annular framework 25, the bottom frame 11 and the top cover 12 can be integrally enclosed to form a sealed space, so that the sealing performance is ensured.
The first annular diaphragm 21 includes a first folding ring 211, a first fixing portion 212 located inside the first folding ring 211, and a second fixing portion 213 located outside the first folding ring 211, the first fixing portion 212 is connected to the outside of the annular dome 23, and the second fixing portion 213 is connected to the bottom frame 11, specifically to the first side plate 112; the second annular diaphragm 22 includes a second folding ring 221, a third fixing portion 222 located inside the second folding ring 221, and a fourth fixing portion 223 located outside the second folding ring 221, the third fixing portion 222 is connected to the top cover 12, specifically, connected to the second side plate 122, and the fourth fixing portion 223 is connected to the inside of the annular dome 23.
The first folding ring 211 is an arc-shaped structure with two ends respectively bending and protruding from the first fixing part 212 and the second fixing part 213 towards the bottom frame 11; the second folding ring 221 has an arc structure with two ends respectively bending and protruding from the third fixing portion 222 and the fourth fixing portion 223 toward a direction away from the bottom frame 11.
The voice coil 24 is movably sleeved outside the protrusion 123.
The connection ribs 26 are provided in two, and the two connection ribs 26 extend from two opposite sides of the voice coil 24 to connect the annular domes 23, respectively. By providing two connection skeletons 26 extending from two opposite sides of the voice coil 24 to be connected to the annular dome 23, the voice coil 24 can transmit vibration to the annular dome 23 in a balanced manner through the two connection skeletons 26, so that the vibration system 20 vibrates in a balanced manner, and the tone quality is improved. It should be understood that the number of the connecting skeletons 26 is not limited to two, and any number of the connecting skeletons 26 including one, three, or four may be provided, as long as the voice coil 24 can drive the first annular diaphragm 21 and the second annular diaphragm 22 to vibrate through the connecting skeletons 26.
An escape notch 27 for escaping the second side plate 122 is concavely provided on one side of each connecting framework 26 facing the second side plate 122. The vibration stroke of the voice coil 24 can be effectively increased by providing the escape notch 27, thereby increasing the power of the speaker 100.
Each of the connection skeletons 26 includes a first extension portion 261, a second extension portion 262 and a third extension portion 263, the first extension portion 261 is disposed at the side of the voice coil 24 at intervals, the second extension portion 262 and the third extension portion 263 are respectively connected to the outer side wall of the voice coil 24 from the two ends of the first extension portion 261 along the direction perpendicular to the vibration direction of the voice coil 24, the first extension portion 261 is connected to the annular dome 23, and the avoidance gap 27 is disposed between the second extension portion 262 and the third extension portion 263. With this arrangement, the first extension portion 261 and the annular dome 23 have a larger connecting area, and the connection between the connection bobbin 26 and the annular dome 23 is more stable, so that when the voice coil 24 drives the annular dome 23 to vibrate at high frequency or at large amplitude through the connection bobbin 26, the joint between the connection bobbin 26 and the annular dome 23 is not easily broken.
The magnetic circuit system 30 is located inside the second annular diaphragm 122. By setting magnetic circuit 30 to be located inside second annular diaphragm 122, vibration system 20 does not cause an obstruction to voice coil 24 in the vibration direction of voice coil 24, can greatly improve the effective vibration space of voice coil 24, promote the power of loudspeaker 100, and be convenient for magnetic circuit 30's optimal design.
The magnetic circuit system 30 includes a magnetic conduction plate 31 installed in the middle of the bottom frame 111, a main magnetic steel 32 installed in the middle of the magnetic conduction plate 31, four auxiliary magnetic steels 33 installed on the magnetic conduction plate 31 and surrounding the main magnetic steel 32, a main pole core 34 attached to one side of the main magnetic steel 32 away from the magnetic conduction plate 31, and four auxiliary pole cores 35 attached to one sides of the four auxiliary magnetic steels 33 away from the magnetic conduction plate 31, the main magnetic steel 32 and the auxiliary magnetic steels 33 are arranged at intervals, and the voice coil 24 is movably sleeved outside the main magnetic steel 32. It is understood that the number of the secondary magnetic steels 33 is not limited to four, for example, two secondary magnetic steels 33 are provided, and it is also possible that two secondary magnetic steels 33 are respectively provided on two opposite sides of the primary magnetic steel 32.
The middle of the bottom plate 111 is provided with a through hole 113, and the magnetic conduction plate 31 is embedded in the through hole 113. Due to the limitation of the size of the loudspeaker 100, the distance from the bottom plate 111 to the annular dome 23 is limited, and the through hole 113 is formed in the bottom plate 111, so that the magnetic conduction plate 31 is embedded in the through hole 113, the distance from the bottom plate 111 to the annular dome 23 occupied by the magnetic conduction plate 31 can be reduced, the effective vibration space of the voice coil 24 can be enlarged, and the power of the loudspeaker 100 is improved.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.

Claims (10)

1.一种扬声器，包括振动系统、用于驱动所述振动系统振动发声的磁路系统以及用于供所述振动系统和所述磁路系统安装的盆架，其特征在于，所述盆架包括用于收容所述磁路系统的底框和固定于所述磁路系统上的顶盖，所述振动系统包括第一环形振膜、第二环形振膜、环形球顶、音圈、环形骨架以及连接骨架,所述第一环形振膜的外侧与所述底框连接，所述第一环形振膜的内侧与所述环形骨架的环形底部连接，所述环形骨架的环形顶部与所述环形球顶的外侧连接，所述第二环形振膜的外侧与所述环形球顶的内侧连接，所述第二环形振膜的内侧与所述顶盖连接，所述连接骨架的一端与所述音圈连接、另一端与所述环形球顶连接。1. A loudspeaker comprising a vibration system, a magnetic circuit system for driving the vibration system to vibrate and sound, and a basin frame for the installation of the vibration system and the magnetic circuit system, wherein the basin frame It includes a bottom frame for accommodating the magnetic circuit system and a top cover fixed on the magnetic circuit system. The vibration system includes a first annular diaphragm, a second annular diaphragm, an annular dome, a voice coil, a ring A frame and a connecting frame, the outer side of the first annular diaphragm is connected to the bottom frame, the inner side of the first annular diaphragm is connected to the annular bottom of the annular frame, and the annular top of the annular frame is connected to the The outer side of the annular dome is connected, the outer side of the second annular diaphragm is connected with the inner side of the annular dome, the inner side of the second annular diaphragm is connected with the top cover, and one end of the connecting skeleton is connected to the inner side of the annular dome. The voice coil is connected, and the other end is connected with the annular dome. 2.根据权利要求1所述的扬声器，其特征在于，所述磁路系统位于所述第二环形振膜的内侧。2 . The loudspeaker according to claim 1 , wherein the magnetic circuit system is located inside the second annular diaphragm. 3 . 3.根据权利要求2所述的扬声器，其特征在于，所述磁路系统包括安装于所述底框中间的导磁板、设置于所述导磁板中间的主磁钢、四个设置于所述导磁板上并环绕所述主磁钢设置的副磁钢、贴附于所述主磁钢之远离所述导磁板一侧的主极芯和四个分别贴附于四个所述副磁钢之远离所述导磁板一侧的副极芯，所述主磁钢和所述副磁钢间隔设置，所述音圈可活动套设于所述主磁钢外。3 . The loudspeaker according to claim 2 , wherein the magnetic circuit system comprises a magnetic conductive plate installed in the middle of the bottom frame, a main magnetic steel disposed in the middle of the magnetic conductive plate, four The secondary magnetic steel on the magnetic conductive plate and surrounding the main magnetic steel, the main pole core attached to the main magnetic steel on the side away from the magnetic conductive plate, and the four main pole cores attached to the four magnetic steels respectively. The secondary pole core on the side of the secondary magnetic steel away from the magnetic conducting plate, the primary magnetic steel and the secondary magnetic steel are arranged at intervals, and the voice coil is movably sleeved outside the primary magnetic steel. 4.根据权利要求3所述的扬声器，其特征在于，所述底框包括底板和凸设于所述底板边缘的第一侧板，所述第一环形振膜的外侧与所述第一侧板连接，所述底板的中间开设有通孔，所述导磁板嵌设于所述通孔中。4 . The loudspeaker according to claim 3 , wherein the bottom frame comprises a bottom plate and a first side plate protruding from the edge of the bottom plate, and the outer side of the first annular diaphragm is connected to the first side. 5 . The board is connected, a through hole is formed in the middle of the bottom plate, and the magnetic conductive plate is embedded in the through hole. 5.根据权利要求1所述的扬声器，其特征在于，所述顶盖包括顶板、凸设于所述顶板中间的凸块和凸设于所述顶板边缘的第二侧板，所述凸块之远离所述顶板的一侧与所述磁路系统连接，所述第二环形振膜的内侧与所述第二侧板连接，所述音圈可活动套设于所述凸块外。5 . The loudspeaker according to claim 1 , wherein the top cover comprises a top plate, a convex block protruding from the middle of the top plate, and a second side plate protruding from the edge of the top plate, the convex block is 5 . The side away from the top plate is connected to the magnetic circuit system, the inner side of the second annular diaphragm is connected to the second side plate, and the voice coil is movably sleeved outside the bump. 6.根据权利要求5所述的扬声器，其特征在于，所述连接骨架设有两个，两个所述连接骨架分别从所述音圈的两相对侧延伸连接所述环形球顶。6 . The loudspeaker according to claim 5 , wherein there are two connecting frames, and the two connecting frames extend from two opposite sides of the voice coil to connect to the annular dome. 7 . 7.根据权利要求6所述的扬声器，其特征在于，每个所述连接骨架之朝向所述第二侧板的一侧凹设有用于避让所述第二侧板的避让缺口。7 . The loudspeaker according to claim 6 , wherein a side of each of the connecting frames facing the second side plate is recessed with an escape notch for avoiding the second side plate. 8 . 8.根据权利要求7所述的扬声器，其特征在于，每个所述连接骨架都包括第一延伸部、第二延伸部和第三延伸部，所述第一延伸部间隔设置于所述音圈的旁侧，所述第二延伸部和所述第三延伸部分别从所述第一延伸部的两端沿垂直所述音圈之振动方向的方向连接所述音圈的外侧壁，所述第一延伸部连接所述环形球顶，所述避让缺口设置于所述第二延伸部和所述第三延伸部。8 . The speaker according to claim 7 , wherein each of the connecting frames comprises a first extension part, a second extension part and a third extension part, and the first extension parts are arranged at intervals between the speaker and the speaker. 9 . On the side of the coil, the second extension part and the third extension part are respectively connected to the outer side wall of the voice coil from both ends of the first extension part in a direction perpendicular to the vibration direction of the voice coil, so The first extension part is connected to the annular dome, and the avoidance gap is provided in the second extension part and the third extension part. 9.根据权利要求1-8任一项所述的扬声器，其特征在于，所述第一环形振膜包括第一折环、位于所述第一折环内侧的第一固定部和位于所述第一折环外侧的第二固定部，所述第一固定部与所述环形球顶的外侧连接，所述第二固定部与所述底框连接；所述第二环形振膜包括第二折环、位于所述第二折环内侧的第三固定部和位于所述第二折环外侧的第四固定部，所述第三固定部与所述顶盖连接，所述第四固定部与所述环形球顶的内侧连接。9. The loudspeaker according to any one of claims 1-8, wherein the first annular diaphragm comprises a first folded ring, a first fixed portion located inside the first folded ring, and a first fixed portion located on the inner side of the first a second fixing part on the outer side of the first folding ring, the first fixing part is connected with the outer side of the annular dome, and the second fixing part is connected with the bottom frame; the second annular diaphragm includes a second a folding ring, a third fixing part located inside the second folding ring, and a fourth fixing part located outside the second folding ring, the third fixing part is connected with the top cover, and the fourth fixing part is connected to the inner side of the annular dome. 10.根据权利要求9所述的扬声器，其特征在于，所述第一折环为两端分别从所述第一固定部和所述第二固定部朝向所述底框的方向弯曲凸出设置的弧形结构；所述第二折环为两端分别从所述第三固定部和所述第四固定部朝远离所述底框的方向弯曲凸出设置的弧形结构。10 . The loudspeaker according to claim 9 , wherein both ends of the first ring are bent and protruded from the first fixing portion and the second fixing portion toward the bottom frame. 11 . The second folding ring is an arc-shaped structure with both ends bent and protruding from the third fixing part and the fourth fixing part respectively towards the direction away from the bottom frame.
CN201910488209.XA 2019-05-10 2019-06-05 speaker Expired - Fee Related CN110166910B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910387728 2019-05-10
CN2019103877287 2019-05-10

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CN110166910A CN110166910A (en) 2019-08-23
CN110166910B true CN110166910B (en) 2021-01-08

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