WO2022006922A1 - 扬声器 - Google Patents

扬声器 Download PDF

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Publication number
WO2022006922A1
WO2022006922A1 PCT/CN2020/101825 CN2020101825W WO2022006922A1 WO 2022006922 A1 WO2022006922 A1 WO 2022006922A1 CN 2020101825 W CN2020101825 W CN 2020101825W WO 2022006922 A1 WO2022006922 A1 WO 2022006922A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
supporting
edge
fixed
fixing
Prior art date
Application number
PCT/CN2020/101825
Other languages
English (en)
French (fr)
Inventor
肖波
章统
令狐荣林
孔晨亮
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 WO2022006922A1 publication Critical patent/WO2022006922A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the present application relates to the field of electro-acoustics, and in particular, to a loudspeaker.
  • the skeleton acts as a force arm that conducts vibration, which is used to transmit the vibration of the voice coil to the diaphragm, thereby making the speaker sound.
  • the Young's modulus of the skeleton is limited, due to the strength of the skeleton. It is not enough.
  • the skeleton vibrates at high frequency, the vibration characteristics of the elastic body will appear, which will cause the phase difference between the voice coil and the diaphragm vibration, the high frequency frequency response will drop, and the swing will be intensified, resulting in poor acoustic performance of the speaker.
  • the purpose of the present application is to provide a loudspeaker with better acoustic performance.
  • a loudspeaker comprising a housing with a housing space, a vibration system accommodated in the housing, and a magnetic circuit system for driving the vibration system, the vibration system comprising an upper diaphragm, a voice coil for driving the upper diaphragm to vibrate and sound, and a skeleton for transmitting the vibration of the voice coil to the upper diaphragm and for fixing the voice coil, and the upper diaphragm is connected to the skeleton
  • the loudspeaker also includes a number of weight-increasing blocks, which are arranged on the frame.
  • the upper vibrating membrane includes a first vibrating membrane and a second vibrating membrane, the first vibrating membrane and the second vibrating membrane are located on opposite sides of the magnetic circuit system, and the first vibrating membrane
  • the membrane and the second vibrating membrane are respectively fixed between the housing and the magnetic circuit system
  • the frame includes a first holding part for accommodating and holding the voice coil for supporting the first a first support part of the diaphragm, a second support part used to support the second diaphragm, a first connection part used to connect the first support part and the first holding part, and a first connection part used to connect the
  • the second connecting portion between the second supporting portion and the first holding portion, the first supporting portion and the second supporting portion are connected on both sides of the first holding portion, and a plurality of the weight-increasing blocks are arranged on on the first connecting portion and the second connecting portion.
  • the first support portion includes a first support bottom wall and a first annular side wall extending from the periphery of the first support bottom wall perpendicularly to the first support bottom wall, and the first connection portion is connected to The first annular side walls are connected;
  • the second support portion includes a second supporting bottom wall and a second annular side wall extending from the periphery of the second supporting bottom wall perpendicularly to the second supporting bottom wall, so The second connecting portion is connected to the second annular side wall.
  • the first diaphragm includes a first folded ring portion, a first fixed portion formed by extending from the outer periphery of the first folded ring portion, and a first ball formed by extending from the inner periphery of the first folded ring portion the top, the first ball top is connected to the first support part,
  • the first fixed part includes a first fixed edge fixed on the casing and a first fixed edge fixed on the magnetic circuit system and connected with the The two ends of the first fixed edge are respectively connected to the second fixed edge;
  • the second diaphragm includes a second folded ring part, a second fixed part extending from the outer periphery of the second folded ring part and a self- a second spherical top formed by extending from the inner peripheral edge of the second folded ring part, the second spherical top is connected to the second support part, and the second fixed part comprises a third fixed part fixed on the casing A side portion and a fourth fixed side portion fixed on the magnetic circuit system and respectively connected with both ends of the
  • the vibration system further includes a lower vibration membrane opposite to the upper vibration membrane and arranged at intervals, the lower vibration membrane includes a third vibration membrane and a fourth vibration membrane, and the third vibration membrane includes a third vibration membrane a ring portion, a third fixing portion extending from the outer periphery of the third ring portion, and a first fixing edge extending from the inner periphery of the third ring portion, the fourth diaphragm includes a fourth ring part, a fourth fixing part extending from the outer peripheral edge of the fourth folding ring part, and a second fixing edge extending from the inner peripheral edge of the fourth folding ring part, the third fixing part is arranged on the casing , the fourth fixing part is arranged on the casing, the end of the first annular side wall away from the first supporting bottom wall extends toward the direction of the inner side wall of the casing to form a first supporting edge, and the first supporting edge is formed.
  • One end of the second annular side wall facing away from the second supporting bottom wall extends toward the inner side wall of the casing to form a second supporting edge
  • the first fixing edge is disposed on the first supporting edge
  • the first supporting edge is Two fixing edges are arranged on the second supporting edge
  • the third folding ring portion is arranged opposite to the first folding ring portion
  • the fourth folding ring portion is arranged opposite to the second folding ring portion.
  • the speaker further includes a flexible circuit board that elastically supports the vibration system, the flexible circuit board is sandwiched between the upper diaphragm and the lower diaphragm, and the lower diaphragm is disposed on the on the flexible circuit board.
  • first holding portion, the first connecting portion, the second connecting portion, the first supporting portion and the second supporting portion are integrally formed.
  • the casing includes a basin frame and a bottom cover assembled with the basin frame to form a receiving space, the casing further includes an upper cover, and the first fixing edge portion and the third fixing edge portion are respectively fixed On the basin frame; the second fixing edge portion and the fourth fixing edge portion are respectively sandwiched and fixed between the upper cover and the magnetic circuit system.
  • the voice coil is in a rectangular ring shape
  • the housing is in a rectangular ring shape
  • the long side of the voice coil faces the width direction of the housing
  • the first diaphragm and the second diaphragm are in the shape of a rectangular ring.
  • the membranes are located on both sides of the long sides of the voice coil.
  • the magnetic circuit system includes a magnetic yoke fixedly connected to the middle of the housing, a main magnetic steel assembled in the center of the magnetic yoke, assembled on the magnetic yoke and surrounding the main magnetic steel
  • a secondary magnetic steel arranged to form a magnetic gap, a main pole core attached to the main magnetic steel, and a secondary pole core attached to the secondary magnetic steel, the voice coil is suspended in the magnetic gap
  • the skeleton further includes a second holding portion with a receiving cavity formed on the first connecting portion and the second connecting portion, the secondary magnetic steel is received in the receiving cavity, and the voice coil is abutted on the receiving cavity. on the second holding part.
  • the beneficial effect of the present application is that: the voice coil is fixed on the skeleton, and the upper diaphragm is connected to the skeleton, so that the vibration of the voice coil can be transmitted to the upper diaphragm through the skeleton, thereby driving the vibration of the upper diaphragm, and the speaker further includes Several weighting blocks are arranged on the skeleton, so that the overall strength of the skeleton can be enhanced, the high-frequency performance of the speaker can be improved, the problem of pure sound caused by swinging is reduced, and the acoustic performance of the speaker can be improved.
  • FIG. 1 is a schematic diagram of the overall structure of a speaker according to an embodiment of the application
  • Fig. 2 is the exploded schematic diagram of the loudspeaker in Fig. 1;
  • Fig. 3 is the sectional view along A-A of Fig. 1;
  • Fig. 4 is the partial structure schematic diagram of the loudspeaker in Fig. 1;
  • Fig. 5 is another partial structural schematic diagram of the loudspeaker in Fig. 1;
  • Figure 6 is a schematic diagram of the assembly structure of the skeleton in Figure 1 and the fast weight gain;
  • FIG. 7 is a schematic structural diagram of the magnetic circuit system in FIG. 1;
  • an embodiment of the present application provides a loudspeaker.
  • the loudspeaker in this embodiment includes a housing 1 with an accommodation space, a vibration system 2 accommodated in the housing 1, and used to drive the vibration system. 2 of the magnetic circuit system 3 and the flexible circuit board 4 supporting the vibration system 2 .
  • the casing 1 in this embodiment includes a basin frame 11 and a bottom cover 12 assembled with the basin frame 11 to form a receiving space, and the casing 1 further includes an upper cover 13 .
  • a cover 13 is provided on the basin frame 11 , preferably the upper cover 13 is adapted to the size of the magnetic circuit system 3 for covering the magnetic circuit system 3 .
  • the vibration system 2 in this embodiment is used for sound production.
  • the vibration system 2 includes an upper vibration film 21 and a lower vibration film 22 opposite to the upper
  • the voice coil 23 that drives the upper diaphragm 21 to vibrate and sound and the skeleton 24 for transmitting the vibration of the voice coil 23 to the upper diaphragm 21.
  • the upper diaphragm 21 is used to vibrate and sound
  • the lower diaphragm 22 is used to strengthen the vibration, and can prevent the polarization of the upper diaphragm 21, which can improve the acoustic performance of the speaker.
  • the voice coil 23 is fixed on the frame 24, and the upper diaphragm 21 is connected to the frame 24, so that the vibration of the voice coil 23 can be transmitted. to the diaphragm.
  • the loudspeaker in this embodiment also includes several weighting blocks 5, preferably metal blocks, several weighting blocks 5 are arranged on the skeleton 24, and several weighting blocks 5 are arranged on the skeleton 24, Therefore, the overall strength of the skeleton 24 can be enhanced, the high-frequency performance of the speaker can be improved, the problem of pure sound caused by swinging can be reduced, and the acoustic performance of the speaker can be improved.
  • weight increasing blocks 5 are regularly arranged around the mass center of the skeleton 24 , so that the mass center of the skeleton 24 does not change after adding the weight increasing blocks 5 .
  • the upper diaphragm 21 in this embodiment includes a first diaphragm 211 and a second diaphragm 212 , and the first diaphragm 211 and the second diaphragm 212 are located on opposite sides of the magnetic circuit system 3 , the first vibrating membrane 211 and the second vibrating membrane 212 are respectively fixed on the magnetic circuit system 3 and the end of the basin frame 11 away from the lower vibrating membrane 22, and the first vibrating membrane 211 and the second vibrating membrane 212 are located in the magnetic circuit system 3 and the basin.
  • the voice coil 23 only occupies part of the space, and the magnetic circuit system 3 and the voice coil 23 are similar in size, so in this embodiment, the voice coil 23 and the magnetic circuit system 3 only occupy Part of the space between the first diaphragm 211 and the second diaphragm 212, and the part of the space opposite to the first diaphragm 211 and the second diaphragm 212 can be used to place the flexible circuit board 4, and there is enough space for design
  • the shape of the flexible circuit board 4 and the area of the lower diaphragm 22 can be appropriately increased to prevent the upper diaphragm 21 from swaying, thereby improving the distortion of the speaker.
  • the flexible circuit board 4 is arranged between the upper diaphragm 21 and the lower diaphragm 22, and the voice coil 23 is energized through the replaceable wires of the flexible circuit board 4.
  • the flexible circuit of The plate 4 includes a first connecting edge 41 connected with the basin frame 11 , a second connecting edge 42 connected with the voice coil 23 , and an elastic arm 43 connecting the first connecting edge 41 and the second connecting edge 42 .
  • the voice coil 23 in this embodiment is in the shape of a rectangular ring
  • the frame 11 is rectangular
  • the long side of the voice coil 23 faces the width direction of the frame 11
  • the first diaphragm 211 and the first diaphragm 211 are in the shape of a rectangular ring.
  • the two diaphragms 212 are located on both sides of the long side of the voice coil 23 , that is, in the longitudinal direction of the basin frame 11
  • the first diaphragm 212 and the second diaphragm 212 are located on both sides of the magnetic circuit system 3 .
  • the long side of the voice coil 23 faces the width direction of the basin frame 11 , more space is reserved on both sides of the long side of the voice coil 23 for placing the first diaphragm 211 , the second diaphragm 212 and the elastic arm 43 .
  • the frame 24 in this embodiment includes a first holding portion 241 for accommodating and holding the voice coil 23 , a first supporting portion 242 for supporting the first diaphragm 211 , and a second diaphragm for supporting 212, the second supporting portion 243, the first connecting portion 244 for connecting the first supporting portion 242 and the first holding portion 241, and the second connecting portion 245 for connecting the second supporting portion 243 and the first holding portion 241,
  • the first support portion 242 and the second support portion 243 are connected on both sides of the first holding portion 241, the first connecting edge 41 is sandwiched and fixed between the basin frame 11 and the lower diaphragm 22, and the second connecting edge 42 is fixed on the first connecting edge 41. on a connecting portion 244 and a second connecting portion 245 .
  • several weighting blocks 5 are arranged on the first connecting part 244 and the second connecting part 245 .
  • the first supporting portion 242 in this embodiment includes a first supporting bottom wall 2421 and a first annular side wall 2422 extending from the periphery of the first supporting bottom wall 2421 perpendicular to the first supporting bottom wall 2421 .
  • the support bottom wall 2421 and the first annular side wall 2422 are enclosed to form a first avoidance cavity 2423 ;
  • the second support portion 243 includes a second support bottom wall 2431 and the second support bottom wall 2431 is perpendicular to the second support bottom wall 2431 from the periphery of the second support bottom wall 2431
  • the extended second annular side wall 2432, the second supporting bottom wall 2431 and the second annular side wall 2432 enclose a second avoidance cavity 2433; preferably, the elastic arm 43 is located in the first avoidance cavity 2423 and the second avoidance cavity 2433, the lower diaphragm 22 is located between the annular side wall and the inner wall of the basin frame 11, so that the vibration of the lower diaphragm 22 will not be interfered by the elastic arm 43.
  • the elastic arm 43 Since the elastic arm 43 is arranged in the first avoidance cavity 2423 and the second avoidance cavity 2433, the elastic arm 43 can be prevented from moving between the inner wall of the basin frame 11 and the frame 24 during the vibration process, thereby ensuring the stability of the acoustic performance of the speaker sex.
  • the length of the elastic arm 43 in this embodiment can be appropriately increased, so that the stress received during the vibration process is reduced, and the phenomenon of wire breakage due to the short elastic arm 43 is avoided.
  • the first connecting portion 244 has a first mounting groove 2441 for accommodating and constraining the weighted block 5
  • the second connecting portion 245 has a first mounting groove 2441 for accommodating and constraining the weighted block 5
  • Two installation grooves 2451 preferably two first installation grooves 2441 , two second installation grooves 2451 , two first installation grooves 2441 and two second installation grooves 2451 are distributed around the mass center of the frame 24 on the frame 24 On the upper side, and at the four corners of the rectangle formed by them, the weighting blocks 5 are detachably installed in the first installation groove 2441 and the second installation groove 2451 5.
  • the first holding portion 241 , the first connecting portion 244 , the second connecting portion 245 , the first supporting portion 242 and the second supporting portion 243 are integrally formed. Therefore, the strength of the frame 24 can be ensured, and it is not easily damaged during the vibration process.
  • the first diaphragm 211 in this embodiment includes a first folded ring portion 2111 , a first fixed portion 2112 extending from the outer periphery of the first folded ring portion 2111 , and an inner periphery of the first folded ring portion 2111
  • the first ball top 2113 formed by extension, the first ball top 2113 is connected to the first support part 242, specifically, the first ball top is arranged on the first support bottom wall 2421, and the first ball top and the first support bottom
  • the walls 2421 are similar in size and shape
  • the first fixing portion 2112 includes a first fixing edge portion 2112a fixed on the housing 1 and a second fixing edge portion 2112a fixed on the magnetic circuit system 3 and connected to both ends of the first fixing edge portion 2112a respectively.
  • the second fixing portion 2122 extending from the outer peripheral edge and the second spherical top portion 2123 extending from the inner peripheral edge of the second folded ring portion 2121 are connected to the second supporting portion 243.
  • the second spherical top portion 2123 is It is arranged on the second supporting bottom wall 2431, and the size and shape of the second spherical top and the second supporting bottom wall 2431 are similar.
  • the second fixing portion 2122 includes a third fixing edge portion 2122a fixed on the The fourth fixed edge portion 2122b on the magnetic circuit system 3 is connected to both ends of the third fixed edge portion 2122a respectively, so that the second ring portion 2121 is located between the second annular side wall 2432 and the inner wall of the basin frame 11 .
  • the first ball top 2113 in this embodiment includes a first support inner edge 2113a and a first clamping plate 2113b.
  • the inner periphery of the first support inner edge 2113a forms a first center hole 2113c
  • the first clamping plate 2113b abuts on the first supporting inner edge 2113a to cover the first center hole 2113c.
  • the first clamping plate 2113b is disposed on the first supporting bottom wall 2421, and the first supporting inner edge 2113a abuts on the first supporting bottom wall 2113a.
  • the second ball top 2123 includes a second supporting inner edge 2123a and a second clamping plate 2123b.
  • the second clamping plate 2123b abuts on the second supporting inner edge 2123a to cover the second centering hole 2123c.
  • the second clamping plate 2123b is arranged on the second supporting bottom wall 2431, and the second supporting inner edge 2123a abuts on the second clamping plate 2123b on the edge.
  • the lower diaphragm 22 in this embodiment includes a third diaphragm 221 and a fourth diaphragm 222
  • the third diaphragm 221 includes a third folded ring portion 2211 and a third folded ring portion 2211
  • the fourth diaphragm 222 includes a fourth ring portion 2221 and a fourth fixing portion 2222 extending from the outer periphery of the fourth ring portion 2221.
  • the third fixing portion 2212 is disposed in the basin On the frame 11, the fourth fixing portion 2222 is arranged on the basin frame 11.
  • the third fixing portion 2212 is arranged on the first connecting edge 41, and the fourth fixing portion 2222 is arranged on the first connecting edge 41. More specifically , the first connecting edge 41 is bonded to the basin frame 11, the third fixing portion 2212 is bonded to the first connecting edge 41, and the fourth fixing portion 2222 is bonded to the first connecting edge 41.
  • the three-folding ring portion 2211 is arranged opposite to the first folding-ring portion 2111 , and the fourth folding-ring portion 2221 is arranged opposite to the second folding-ring portion 2121 .
  • the third diaphragm 221 and the fourth diaphragm 222 are respectively disposed on both sides of the long side of the voice coil 23 .
  • the third diaphragm 221 in this embodiment further includes a first fixing edge 2213 extending from the inner periphery of the third folded ring portion 2211
  • the fourth diaphragm 222 further includes a first fixed edge 2213 from the fourth folded ring portion
  • a second fixed edge 2223 formed by extending from the inner periphery of 2221, one end of the first annular side wall 2422 facing away from the first supporting bottom wall 2421 extending towards the direction of the basin frame 11 to form a first supporting edge 2424, and the second annular side wall 2432 facing away from the second supporting
  • One end of the bottom wall 2431 extends toward the basin frame 11 to form a second supporting edge 2434 .
  • the vibration of the voice coil 23 can be simultaneously transmitted to the first diaphragm 211 and the second diaphragm 212 of the upper diaphragm 21 and the third diaphragm 221 and the fourth diaphragm 222 of the lower diaphragm 22 through the frame 24, so that the speaker is better acoustic performance.
  • the magnetic circuit system 3 in this embodiment includes a magnetic yoke 31 fixedly connected to the middle of the bottom cover 12 , a main magnetic steel 32 assembled in the center of the magnetic yoke 31 , and assembled in the On the yoke 31 and around the main magnet 32 to form a secondary magnet 33 to form a magnetic gap, the main pole core 34 attached to the main magnet 32 and the secondary pole core 35 attached to the secondary magnet 33, the voice coil 23 is suspended in the magnetic gap. Specifically, the voice coil 23 is sleeved on the main magnetic steel 32 and the side wall of the voice coil 23 is located between the main magnetic steel 32 and the auxiliary magnetic steel 33.
  • the skeleton 24 also includes a The second holding portion 246 on the first connecting portion 244 and the second connecting portion 245 has a receiving cavity 2461, the secondary magnet 33 is received in the receiving cavity 2461, and the voice coil 23 abuts on the receiving cavity 2461. on the second holding portion 246 .
  • the two secondary magnets 33 are symmetrically arranged with respect to the long sides of the main magnet 32 , and the two long sides of the voice coil 23 are respectively inserted into two in the magnetic gap formed by the secondary magnetic steel 33 and the main magnetic steel 32 .
  • the upper cover 13 is covered on the basin frame 11 , and the upper cover 13 includes a first pressing portion 131 and a second pressing portion 132 .
  • the first pressing portion The 131 is pressed against the first diaphragm 211
  • the second pressing portion 132 is pressed against the second diaphragm 212 .
  • the first fixing side portion 2112a and the third fixing side portion 2122a are respectively fixed on the basin frame 11;
  • the second fixed side portion 2112 b and the fourth fixed side portion 2122 b are respectively sandwiched and fixed between the upper cover 13 and the secondary pole core 35 .
  • the basin frame 11 has a matching portion 111 that is matched with the upper cover 13 , the upper cover 13 is covered on the matching portion 111 , and the first fixing portion 2112 and the second fixing portion 2122 respectively have at least parts located at the matching portion 111 and the upper cover. 13, the stability of fixing the first diaphragm 211 and the second diaphragm 212 is further enhanced.

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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

本申请提供了扬声器，其特征在于：包括具有收容空间的壳体以及收容于壳体内的振动系统和用于驱动振动系统的磁路系统，振动系统包括上振膜、用于驱动上振膜振动发声的音圈以及用于将音圈振动传递至上振膜的骨架，音圈固持于骨架上，上振膜连接在骨架上，扬声器还包括若干增重块，若干增重块设置在所述骨架上。音圈固持于所述骨架上，上振膜连接在骨架上，从而能够通过骨架将音圈的振动传导至上振膜上，进而带动上振膜的振动，扬声器还包括若干增重块，将若干所述增重块设置在骨架上，从而可以增强骨架整体强度，提升扬声器的高频性能，同时减少了摇摆引起的纯音问题，改善了扬声器的声学性能。

Description

扬声器 技术领域
本申请涉及电声领域，尤其涉及一种扬声器。
 背景技术
在现如今的移动互联网时代，智能移动终端设备的数量不断上升，对移动终端的要求也越来越高，其中之一便是要求高品质的音质功能。
 技术问题
相关技术中的扬声器，骨架作为一种传导振动的力臂，用于将音圈的振动传递至振膜，进而使扬声器发声，但是在骨架杨氏模量受限的情况下，由于骨架的强度不够，骨架高频振动时会出现弹性体的振动特征，使得音圈和振膜振动出现相位差，高频频响跌落，摇摆加剧，造成扬声器的声学性能不佳。
因此，有必要提供一种新型的扬声器来解决上述问题。
 技术解决方案
本申请的目的在于提供一种扬声器，该扬声器声学性能更佳。
本申请的技术方案如下：一种扬声器，包括具有收容空间的壳体以及收容于所述壳体内的振动系统和用于驱动所述振动系统的磁路系统，所述振动系统包括上振膜、用于驱动所述上振膜振动发声的音圈以及用于将音圈的振动传递至所述上振膜并用于固定所述音圈的骨架，所述上振膜连接在所述骨架上，所述扬声器还包括若干增重块，若干所述增重块设置在所述骨架上。
作为进一步地，所述上振膜包括第一振膜和第二振膜，所述第一振膜和所述第二振膜位于所述磁路系统相对的两侧，且所述第一振膜和所述第二振膜分别固定于所述壳体和所述磁路系统之间，所述骨架包括用于收容并固持所述音圈的第一固持部、用于支撑所述第一振膜的第一支撑部、用于支撑所述第二振膜的第二支撑部、用于连接所述第一支撑部与所述第一固持部的第一连接部以及用于连接所述第二支撑部与所述第一固持部的第二连接部，所述第一支撑部与所述第二支撑部连接在所述第一固持部的两侧，若干所述增重块设置在所述第一连接部与所述第二连接部上。
作为进一步地，所述第一支撑部包括第一支撑底壁以及自所述第一支撑底壁周缘垂直所述第一支撑底壁延伸形成的第一环形侧壁，所述第一连接部与所述第一环形侧壁连接；所述第二支撑部包括第二支撑底壁以及自所述第二支撑支撑底壁周缘垂直所述第二支撑底壁延伸形成的第二环形侧壁，所述第二连接部与所述第二环形侧壁连接。
作为进一步地，所述第一振膜包括第一折环部、自所述第一折环部外周缘延伸形成的第一固定部及自所述第一折环部内周缘延伸形成的第一球顶部，所述第一球顶部连接在所述第一支撑部上，所述第一固定部包括固定于所述壳体上的第一固定边部以及固定于所述磁路系统上并与所述第一固定边部的两端分别连接的第二固定边部；所述第二振膜包括第二折环部、自所述第二折环部外周缘延伸形成的第二固定部及自所述第二折环部内周缘延伸形成的第二球顶部，所述第二球顶部连接在所述第二支撑部上，所述第二固定部包括固定于所述壳体上的第三固定边部以及固定于所述磁路系统上并与所述第三固定边部的两端分别连接的第四固定边部。
作为进一步地，所述振动系统还包括与所述上振膜相对且间隔设置的下振膜，所述下振膜包括第三振膜和第四振膜，所述第三振膜包括第三折环部、自所述第三折环部外周缘延伸形成的第三固定部以及自所述第三折环部内周缘延伸形成的第一固定边，所述第四振膜包括第四折环部、自所述第四折环部外周缘延伸形成的第四固定部以及自所述第四折环部内周缘延伸形成的第二固定边，所述第三固定部设置在所述壳体上，所述第四固定部设置在所述壳体上，所述第一环形侧壁背离所述第一支撑底壁的一端向所述壳体内侧壁的方向延伸形成第一支撑边，所述第二环形侧壁背离所述第二支撑底壁的一端向所述壳体内侧壁的方向延伸形成第二支撑边，所述第一固定边设置在所述第一支撑边上，所述第二固定边设置在所述第二支撑边上，所述第三折环部与所述第一折环部相对设置，所述第四折环部与所述第二折环部相对设置。
作为进一步地，所述扬声器还包括弹性支撑所述振动系统的柔性电路板，所述柔性电路板夹设于所述上振膜和所述下振膜之间，且所述下振膜设置在所述柔性电路板上。
作为进一步地，所述第一固持部、所述第一连接部、所述第二连接部、所述第一支撑部以及所述第二支撑部一体成型设置。
作为进一步地，所述壳体包括盆架以及与所述盆架组配形成收容空间的底盖，壳体还包括上盖，所述第一固定边部和所述第三固定边部分别固定在所述盆架上；所述第二固定边部和所述第四固定边部分别夹设固定于所述上盖和所述磁路系统之间。
作为进一步地，所述音圈呈矩形环状，所述壳体呈矩形环状，所述音圈的长边朝向所述壳体的宽度方向，所述第一振膜和所述第二振膜位于所述音圈的长边的两侧。
作为进一步地，所述磁路系统包括固定连接在所述壳体中部的磁轭、组配于所述磁轭中央的主磁钢、组配于所述磁轭上并环绕所述主磁钢设置以形成磁间隙的副磁钢、贴附于所述主磁钢上方的主极芯以及贴附于所述副磁钢的副极芯，所述音圈悬置于所述磁间隙内，所述骨架还包括形成于所述第一连接部和第二连接部上的具有一收容腔的第二固持部，所述副磁钢收容于所述收容腔内，所述音圈抵接在所述第二固持部上。
 有益效果
本申请的有益效果在于：音圈固持于所述骨架上，上振膜连接在骨架上，从而能够通过骨架将音圈的振动传导至上振膜上，进而带动上振膜的振动，扬声器还包括若干增重块，将若干增重块设置在骨架上，从而可以增强骨架整体强度，提升扬声器的高频性能，同时减少了摇摆引起的纯音问题，改善了扬声器的声学性能。
 附图说明
图1为本申请一实施例的扬声器的整体结构示意图；
图2为图1中的扬声器的分解示意图；
图3为图1沿A-A处的剖视图；
图4为图1中的扬声器的部分结构示意图；
图5为图1中的扬声器的另一部分结构示意图；
图6为图1中的骨架和增重快的装配结构示意图；
图7为图1中的磁路系统的结构示意图；
图中：1、壳体；11、盆架；111、配合部；12、底盖；13、上盖；131、第一抵压部；132、第二抵压部；2、振动系统；21、上振膜；211、第一振膜；2111、第一折环部；2112、第一固定部；2112a、第一固定边部；2112b、第一固定边部；2113、第一球顶部；2113a、第一支撑内边；2113b、第一夹板；2113c、第一切中孔；212、第二振膜；2121、第二折环部；2122、第二固定部；2122a、第三固定边部；2122b、第四固定边部；2123、第二球顶部；2123a、第二支撑内边；2123b、第二夹板；2123c、第二切中孔；22、下振膜；221、第三振膜；2211、第三折环部；2212、第三固定部；2213、第一固定边；222、第四振膜；2221、第四折环部；2222、第四固定部；2223、第二固定边；23、音圈；24、骨架；241、第一固持部；242、第一支撑部；2421、第一支撑底壁；2422、第一环形侧壁；2423、第一避让腔；2424、第一支撑边；243、第二支撑部；2431、第二支撑底壁；2432、第二环形侧壁；2433、第二避让腔；2434、第二支撑边；244、第一连接部；2441、第一安装槽；245、第二连接部；2451第二安装槽；246、第二固持部；2461、收容腔；3、磁路系统；31、磁轭；32、主磁钢；33、副磁钢；34、主极芯；35、副极芯；4、柔性电路板；41、第一连接边；42、第二连接边；43、弹力臂；5、增重块。
 本发明的实施方式
为进一步说明各实施例，本申请提供有附图。这些附图为本申请揭露内容的一部分，其主要用以说明实施例，并可配合说明书的相关描述来解释实施例的运作原理。配合参考这些内容，本领域普通技术人员应能理解其他可能的实施方式以及本申请的优点。图中的组件并未按比例绘制，而类似的组件符号通常用来表示类似的组件。
下面结合附图和实施方式对本申请作进一步说明。
请参照图1-图7，本申请一实施例提供了一种扬声器，本实施例中的扬声器包括具有收容空间的壳体1、收容于壳体1内的振动系统2、用于驱动振动系统2的磁路系统3和支撑振动系统2的柔性电路板4。
请参照图1以及图7，本实施例中的壳体1包括盆架11以及与所述盆架11组配形成收容空间的底盖12，壳体1还包括上盖13，所述上盖13盖设在盆架11上，优选为上盖13与磁路系统3的大小适配，用于覆盖磁路系统3。
请参照图2-图4，本实施例中的振动系统2是用于发声，具体地，振动系统2包括上振膜21、与上振膜21相对且间隔设置的下振膜22、用于驱动上振膜21振动发声的音圈23以及用于将音圈23的振动传递至上振膜21的骨架24，上振膜21用于振动发声，下振膜22用于加强上振膜21的振动，且能够防止上振膜21的偏振，能够改善扬声器的声学性能，具体地，音圈23固持于骨架24上，上振膜21连接在骨架24上，进而可以使音圈23的振动传递至振膜。
在相关技术中，在骨架24杨氏模量受限的情况下，由于骨架24的强度不够，骨架24高频振动时会出现弹性体的振动特征，使得音圈23和振膜振动出现相位差，高频频响跌落，摇摆加剧，造成扬声器的声学性能不佳。请参照图2以及图5，本实施例中的扬声器还包括若干增重块5，优选为金属块，若干增重块5设置在骨架24上，将若干增重块5设置在骨架24上，从而可以增强骨架24整体的强度，提升扬声器的高频性能，同时减少了摇摆引起的纯音问题，改善了扬声器的声学性能。
优选地，若干增重块5围绕骨架24的质量中心规则排布，以使增设增重块5之后的骨架24的质量中心未发生改变。
请参照图2-图5，本实施例中的上振膜21包括第一振膜211和第二振膜212，第一振膜211和第二振膜212位于磁路系统3相对的两侧，第一振膜211和第二振膜212分别固定于磁路系统3和盆架11远离下振膜22的一端上，第一振膜211和第二振膜212位于磁路系统3和盆架11之间，在壳体1的收容空间内，音圈23只占据部分空间，磁路系统3与音圈23大小相近，从而在本实施例中，音圈23和磁路系统3只占据第一振膜211和第二振膜212中间的部分空间，而与第一振膜211和第二振膜212相对的部分空间可以用于放置柔性电路板4，且具有足够的空间用于设计柔性电路板4的形状，而且可以适当增大下振膜22的面积以防止上振膜21的摇摆，从而改善扬声器的失真。
请参照图2-图4，本实施例中柔性电路板4设置在上振膜21与下振膜22之间，通过柔性电路板4可替换导线将音圈23通电，具体地，的柔性电路板4包括与盆架11连接的第一连接边41、与音圈23连接的第二连接边42以及连接第一连接边41和第二连接边42的弹力臂43。
请参照图2-图4，本实施例中的音圈23呈矩形环状，盆架11呈矩形环状，音圈23的长边朝向盆架11的宽度方向，第一振膜211和第二振膜212位于音圈23的长边的两侧,即，在盆架11的长度方向上，第一振膜和第二振膜212位于磁路系统3的两侧。由于音圈23的长边朝向盆架11的宽度方向，从而使音圈23的长边的两侧预留更多的空间以放置第一振膜211、第二振膜212以及弹力臂43。
请参照图6，本实施例中的骨架24包括用于收容并固持音圈23的第一固持部241、用于支撑第一振膜211的第一支撑部242、用于支撑第二振膜212的第二支撑部243、用于连接第一支撑部242与第一固持部241的第一连接部244以及用于连接第二支撑部243与第一固持部241的第二连接部245，第一支撑部242与第二支撑部243连接在第一固持部241的两侧,第一连接边41夹设固定于盆架11与下振膜22之间，第二连接边42固定于第一连接部244和第二连接部245上。优选地，若干增重块5设置在第一连接部244与第二连接部245上。
请参照图5，本实施例中的第一支撑部242包括第一支撑底壁2421以及自第一支撑底壁2421周缘垂直第一支撑底壁2421延伸形成的第一环形侧壁2422，第一支撑底壁2421与第一环形侧壁2422围合形成第一避让腔2423；第二支撑部243包括第二支撑底壁2431以及自第二支撑底壁2431周缘垂直所述第二支撑底壁2431延伸形成的第二环形侧壁2432，第二支撑底壁2431与第二环形侧壁2432围合形成第二避让腔2433；优选地，弹力臂43位于第一避让腔2423内和第二避让腔2433内，下振膜22位于环形侧壁与所述盆架11的内壁之间，从而下振膜22的振动不会受到弹力臂43的干涉。由于弹力臂43设置在第一避让腔2423内和第二避让腔2433内，从而可以避免弹力臂43在振动过程中移动至盆架11的内壁与骨架24之间，进而可以保证扬声器声学性能的稳定性。另外，本实施例中的弹力臂43的长度设计时可适当增长，则在振动过程中所受的应力减小，避免了因弹力臂43较短而断线的现象。
请参照图2以及图6，本实施例中的第一连接部244上具有收容并限制增重块5的第一安装槽2441，第二连接部245上具有收容并限制增重块5的第二安装槽2451，优选为第一安装槽2441具有两个，第二安装槽2451具有两个，两个第一安装槽2441和两个第二安装槽2451环绕骨架24的质量中心分布在骨架24上，且分别在由其组成的矩形的的四个角部，增重块5可拆卸地安装第一安装槽2441内和第二安装槽2451内5。
本实施例中的第一固持部241、第一连接部244、第二连接部245、第一支撑部242以及第二支撑部243一体成型设置。从而可以保证骨架24的强度，在振动过程中也不易损坏。
请参照图2，本实施例中的第一振膜211包括第一折环部2111、自第一折环部2111外周缘延伸形成的第一固定部2112及自第一折环部2111内周缘延伸形成的第一球顶部2113，第一球顶部2113连接在第一支撑部242上，具体地，第一球顶设置在第一支撑底壁2421上，并且第一球顶与第一支撑底壁2421的大小和形状相近，第一固定部2112包括固定于壳体1上的第一固定边部2112a以及固定于磁路系统3上并与第一固定边部2112a的两端分别连接的第二固定边部2112b，从而使第一折环部2111位于第一环形侧壁2422与盆架11的内壁之间；第二振膜212包括第二折环部2121、自第二折环部2121外周缘延伸形成的第二固定部2122及自第二折环部2121内周缘延伸形成的第二球顶部2123，第二球顶部2123连接在第二支撑部243上，具体地，第二球顶设置在第二支撑底壁2431上，并且第二球顶与第二支撑底壁2431的大小和形状相近，第二固定部2122包括固定于壳体1上的第三固定边部2122a以及固定于磁路系统3上并与第三固定边部2122a的两端分别连接的第四固定边部2122b，从而使第二折环部2121位于第二环形侧壁2432与盆架11的内壁之间。
请参照图2，本实施例中的第一球顶部2113包括第一支撑内边2113a以及第一夹板2113b，具体地，第一支撑内边2113a的内周缘围合形成第一切中孔2113c，第一夹板2113b抵在第一支撑内边2113a上以将第一切中孔2113c封盖，具体地，第一夹板2113b设置在第一支撑底壁2421上，第一支撑内边2113a抵接在第一夹板2113b的边缘上；第二球顶部2123包括第二支撑内边2123a以及第二夹板2123b，具体地，第二支撑内边2123a的内周缘围合形成第二切中孔2123c，第二夹板2123b抵在第二支撑内边2123a上以将第二切中孔2123c封盖，具体地，第二夹板2123b设置在第二支撑底壁2431上，第二支撑内边2123a抵接在第二夹板2123b的边缘上。
请参照图2-图4，本实施例中的下振膜22包括第三振膜221和第四振膜222，第三振膜221包括第三折环部2211以及自第三折环部2211外周缘延伸形成的第三固定部2212，第四振膜222包括第四折环部2221以及自第四折环部2221外周缘延伸形成的第四固定部2222，第三固定部2212设置在盆架11上，第四固定部2222设置在盆架11上，具体地，第三固定部2212设置在第一连接边41上，第四固定部2222设置在第一连接边41上，进一步具体地，第一连接边41粘接在盆架11上，第三固定部2212粘接在第一连接边41上，第四固定部2222粘接在第一连接边41上，在Z方向上，第三折环部2211与第一折环部2111相对设置，第四折环部2221与第二折环部2121相对设置。优选地，第三振膜221和第四振膜222分别设置在音圈23的长边的两侧。
请参照图2-图4，本实施例中的第三振膜221还包括自第三折环部2211内周缘延伸的第一固定边2213，第四振膜222还包括自第四折环部2221内周缘延伸形成的第二固定边2223，第一环形侧壁2422背离第一支撑底壁2421的一端向盆架11方向延伸形成第一支撑边2424，第二环形侧壁2432背离第二支撑底壁2431的一端向盆架11方向延伸形成第二支撑边2434，第一固定边2213设置在第一支撑边2424上，第二固定边2223设置在第二支撑边2434上。从而通过骨架24能将音圈23的振动同时传递至上振膜21的第一振膜211和第二振膜212以及下振膜22的第三振膜221和第四振膜222，从而使扬声器的声学性能更佳。
请参照图2以及图7，本实施例中的所述磁路系统3包括固定连接在所述底盖12中部的磁轭31、组配于磁轭31中央的主磁钢32、组配于磁轭31上并环绕主磁钢32设置以形成磁间隙的副磁钢33、贴附于主磁钢32上方的主极芯34以及贴附于副磁钢33的副极芯35，音圈23悬置于磁间隙内，具体地，音圈23套设在主磁钢32上且音圈23的侧壁位于主磁钢32和副磁钢33之间，所述骨架24还包括形成于所述第一连接部244和第二连接部245上的具有一收容腔2461的第二固持部246，所述副磁钢33收容于所述收容腔2461内，所述音圈23抵接在所述第二固持部246上。
请参照图2以及图6，本实施例中的副磁钢33具有两个，两个副磁钢33关于主磁钢32的长边对称设置，音圈23的两长边分别对应插入两个副磁钢33与主磁钢32形成的磁间隙中。
请参照图2、图4以及图6，本实施例中的上盖13盖设在盆架11上，上盖13包括第一抵压部131和第二抵压部132，第一抵压部131抵压在第一振膜211上，第二抵压部132抵压在第二振膜212上。具体地，第一固定边部2112a和第三固定边部2122a分别固定在盆架11上；第二固定边部2112b和第四固定边部2122b分别夹设固定于所述上盖13和所述磁路系统3之间，进一步具体地，第二固定边部2112b和第四固定边部2122b分别夹设固定于所述上盖13和所述副极芯35之间。优选地，盆架11具有与上盖13配合的配合部111，上盖13盖设在配合部111上，第一固定部2112和第二固定部2122分别至少具有部分位于配合部111与上盖13之间，进一步增强第一振膜211和第二振膜212固定的稳定性。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。

Claims (10)

  1. 一种扬声器，其特征在于：包括具有收容空间的壳体以及收容于所述壳体内的振动系统和用于驱动所述振动系统的磁路系统，所述振动系统包括上振膜、用于驱动所述上振膜振动发声的音圈以及用于将音圈的振动传递至所述上振膜并用于固定所述音圈的骨架，所述上振膜连接在所述骨架上，所述扬声器还包括若干增重块，若干所述增重块设置在所述骨架上。
  2. 根据权利要求1所述的扬声器，其特征在于：所述上振膜包括第一振膜和第二振膜，所述第一振膜和所述第二振膜位于所述磁路系统相对的两侧，且所述第一振膜和所述第二振膜分别固定于所述壳体和所述磁路系统之间，所述骨架包括用于收容并固持所述音圈的第一固持部、用于支撑所述第一振膜的第一支撑部、用于支撑所述第二振膜的第二支撑部、用于连接所述第一支撑部与所述第一固持部的第一连接部以及用于连接所述第二支撑部与所述第一固持部的第二连接部，所述第一支撑部与所述第二支撑部连接在所述第一固持部的两侧，若干所述增重块设置在所述第一连接部与所述第二连接部上。
  3. 根据权利要求2所述的扬声器，其特征在于：所述第一支撑部包括第一支撑底壁以及自所述第一支撑底壁周缘垂直所述第一支撑底壁延伸形成的第一环形侧壁，所述第一连接部与所述第一环形侧壁连接；所述第二支撑部包括第二支撑底壁以及自所述第二支撑支撑底壁周缘垂直所述第二支撑底壁延伸形成的第二环形侧壁，所述第二连接部与所述第二环形侧壁连接。
  4. 根据权利要求3所述的扬声器，其特征在于：所述第一振膜包括第一折环部、自所述第一折环部外周缘延伸形成的第一固定部及自所述第一折环部内周缘延伸形成的第一球顶部，所述第一球顶部连接在所述第一支撑部上，所述第一固定部包括固定于所述壳体上的第一固定边部以及固定于所述磁路系统上并与所述第一固定边部的两端分别连接的第二固定边部；所述第二振膜包括第二折环部、自所述第二折环部外周缘延伸形成的第二固定部及自所述第二折环部内周缘延伸形成的第二球顶部，所述第二球顶部连接在所述第二支撑部上，所述第二固定部包括固定于所述壳体上的第三固定边部以及固定于所述磁路系统上并与所述第三固定边部的两端分别连接的第四固定边部。
  5. 根据权利要求4所述的扬声器，其特征在于：所述振动系统还包括与所述上振膜相对且间隔设置的下振膜，所述下振膜包括第三振膜和第四振膜，所述第三振膜包括第三折环部、自所述第三折环部外周缘延伸形成的第三固定部以及自所述第三折环部内周缘延伸形成的第一固定边，所述第四振膜包括第四折环部、自所述第四折环部外周缘延伸形成的第四固定部以及自所述第四折环部内周缘延伸形成的第二固定边，所述第三固定部设置在所述壳体上，所述第四固定部设置在所述壳体上，所述第一环形侧壁背离所述第一支撑底壁的一端向所述壳体内侧壁的方向延伸形成第一支撑边，所述第二环形侧壁背离所述第二支撑底壁的一端向所述壳体内侧壁的方向延伸形成第二支撑边，所述第一固定边设置在所述第一支撑边上，所述第二固定边设置在所述第二支撑边上，所述第三折环部与所述第一折环部相对设置，所述第四折环部与所述第二折环部相对设置。
  6. 根据权利要求5所述的扬声器，其特征在于：所述扬声器还包括弹性支撑所述振动系统的柔性电路板，所述柔性电路板夹设于所述上振膜和所述下振膜之间，且所述下振膜设置在所述柔性电路板上。
  7. 根据权利要求1-6中任一项所述的扬声器，其特征在于：所述第一固持部、所述第一连接部、所述第二连接部、所述第一支撑部以及所述第二支撑部一体成型设置。
  8. 根据权利要求4所述的扬声器，其特征在于：所述壳体包括盆架以及与所述盆架组配形成收容空间的底盖，壳体还包括上盖，所述第一固定边部和所述第三固定边部分别固定在所述盆架上；所述第二固定边部和所述第四固定边部分别夹设固定于所述上盖和所述磁路系统之间。
  9. 根据权利要求1-6中任一项所述的扬声器，其特征在于：所述音圈呈矩形环状，所述壳体呈矩形环状，所述音圈的长边朝向所述壳体的宽度方向，所述第一振膜和所述第二振膜位于所述音圈的长边的两侧。
  10. 根据权利要求2所述的扬声器，其特征在于：所述磁路系统包括固定连接在所述壳体中部的磁轭、组配于所述磁轭中央的主磁钢、组配于所述磁轭上并环绕所述主磁钢设置以形成磁间隙的副磁钢、贴附于所述主磁钢上方的主极芯以及贴附于所述副磁钢的副极芯，所述音圈悬置于所述磁间隙内，所述骨架还包括形成于所述第一连接部和第二连接部上的具有一收容腔的第二固持部，所述副磁钢收容于所述收容腔内，所述音圈抵接在所述第二固持部上。
PCT/CN2020/101825 2020-07-06 2020-07-14 扬声器 WO2022006922A1 (zh)

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