WO2022082854A1 - 发声单体及扬声器 - Google Patents

发声单体及扬声器 Download PDF

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Publication number
WO2022082854A1
WO2022082854A1 PCT/CN2020/125883 CN2020125883W WO2022082854A1 WO 2022082854 A1 WO2022082854 A1 WO 2022082854A1 CN 2020125883 W CN2020125883 W CN 2020125883W WO 2022082854 A1 WO2022082854 A1 WO 2022082854A1
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WO
WIPO (PCT)
Prior art keywords
matching
frame
sound
fixed
walls
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PCT/CN2020/125883
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English (en)
French (fr)
Inventor
肖波
令狐荣林
孔晨亮
章统
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(常州)有限公司
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Application filed by 瑞声声学科技(深圳)有限公司, 瑞声光电科技(常州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022082854A1 publication Critical patent/WO2022082854A1/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
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • 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

Definitions

  • the present invention relates to the technical field of sound-generating devices, and in particular, to a sound-generating unit and a speaker.
  • the sounding unit includes a vibration system and a magnetic circuit system.
  • the vibration system includes a voice membrane and a voice coil, and the voice coil is connected to the voice membrane;
  • the magnetic circuit system is formed with a magnetic gap, and the voice coil on the voice membrane extends into the interior of the magnetic gap.
  • the concentricity between the sound film and the magnetic circuit system is poor, which affects the sound-generating performance of the sound-generating unit, and further affects the working performance of the entire speaker.
  • the purpose of the present invention is to provide a sound-generating unit and a loudspeaker; in the sound-generating unit, the concentricity of the sound film and the magnetic circuit system is high; the speaker includes the aforementioned sound-generating unit, due to the concentricity of the sound film and the magnetic circuit system high, the product performance is better.
  • One embodiment provides a sound-generating unit, comprising:
  • the basin frame includes an upper cover and a lower cover, the upper cover and the lower cover cooperate to form a accommodating space, and the outer periphery of the upper cover is provided with a first matching wall;
  • the magnetic circuit system is fixed with the lower cover and located in the accommodating space, the magnetic circuit system is formed with a magnetic gap;
  • a vibration system includes a first frame, a second frame, a sound film and a voice coil, the first frame is arranged in a ring shape, and the first frame is provided with a second matching wall, the second matching wall and The first matching walls are correspondingly arranged, so that the first frame is matched with the outer circumference of the upper cover, the inner ring of the sound film is fixed with the outer ring of the first frame, and the outer ring of the sound film is fixed. It is fixed with the lower cover, the second skeleton is arranged in a ring shape, the second skeleton is fixed with the sound membrane and is located on the side of the sound membrane facing the magnetic circuit system, and the voice coil is connected to the sound membrane.
  • the second frame is fixed, and the voice coil extends into the interior of the magnetic gap.
  • the first matching wall and the second matching wall are arranged correspondingly, so that the first frame and the upper cover have higher matching and positioning accuracy; at the same time, the sound film is matched with the first frame, and the second frame is arranged on the sound film , the voice coil is arranged on the second skeleton, and the voice coil corresponds to the magnetic gap of the magnetic circuit system. Therefore, in the overall sounding unit, the concentricity of the sound film and the magnetic circuit system is guaranteed.
  • the inner ring of the sound membrane is provided with a third matching wall, and the third matching wall is arranged corresponding to the second matching wall.
  • At least two of the first matching walls are provided, and at least two of the first matching walls are provided at intervals on the outer circumference of the upper cover;
  • the second matching walls There are at least two of the second matching walls, at least two of the second matching walls are arranged at intervals on the outer circumference of the first frame, and the second matching walls are in one-to-one correspondence with the first matching walls ;
  • the third matching wall is provided with at least two, at least two of the third matching walls are arranged at intervals on the inner ring of the sound membrane, and the third matching wall and the second matching wall are in one-to-one correspondence .
  • the sound membrane includes a middle membrane, an outer membrane and a connecting ring
  • the third matching wall is provided on the inner ring of the middle membrane
  • the outer ring of the outer membrane is fixed to the lower cover
  • the outer ring of the middle membrane and the inner ring of the outer membrane are both fixed with the connecting ring
  • the second skeleton is fixed with the connecting ring.
  • the basin frame further includes a middle frame, the middle frame is fixed to the lower cover and is located on the side of the lower cover facing the upper cover, and the outer ring of the outer membrane is connected to the upper cover.
  • the middle frame is fixed.
  • the vibration system further includes a centering support piece, the centering support piece is fixed with the second frame, and the centering support piece is located on the second frame and faces the lower cover side.
  • the vibration system further includes an elastic support member and an installation frame, the installation frame is fixed to the middle frame or the installation frame is fixed to the lower cover, and the elastic support member is fixed to the lower cover.
  • the sound membranes are arranged at intervals, the outer ring of the elastic support is fixed to the mounting frame, the inner ring of the elastic support is fixed to the second frame, and the centering support is located on the elastic support and the sound membrane.
  • two elastic support members are provided, and the two elastic support members are arranged around the outer circumference of the second frame at intervals.
  • the magnetic circuit system includes a main magnet and a sub-magnet, both of which are fixed to the lower cover, and at least two of the sub-magnets are provided, and at least two of the sub-magnets are provided.
  • the auxiliary magnet surrounds the outer circumference of the main magnet at intervals, and the auxiliary magnet and the main magnet are arranged at intervals to form the magnetic gap.
  • the upper cover is provided with four first matching walls, and the four first matching walls are arranged at intervals on the outer circumference of the upper cover; the second matching walls are provided with four, The four second matching walls are in one-to-one correspondence with the first matching walls; there are four third matching walls, and the four third matching walls are in one-to-one correspondence with the second matching walls.
  • the upper cover is provided with a fourth matching wall
  • the fourth matching wall is fixed with the edge of the first matching wall and extends along the horizontal direction
  • the auxiliary magnets are provided with four
  • the auxiliary magnets are in one-to-one correspondence with the fourth matching walls, the opposite sides of the auxiliary magnets are respectively connected with the lower cover and the fourth matching walls, and the adjacent fourth matching walls are formed between the adjacent fourth matching walls. avoid the gap;
  • the inner ring of the second frame is provided with a fifth matching wall, and the fifth matching wall is provided with four.
  • the fifth matching wall is in one-to-one correspondence with the avoidance gap.
  • the fifth mating wall is fixed.
  • Another embodiment also provides a loudspeaker, including the sound-generating unit described in any one of the above technical solutions.
  • the above-mentioned loudspeaker includes the sound-generating unit described in any one of the foregoing technical solutions, and the concentricity of the sound membrane and the magnetic circuit system is higher, which improves the product performance of the sound-generating unit.
  • FIG. 1 is an exploded view of the overall structure of a sounding monomer in an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the overall structure of a sound-generating unit in an embodiment of the present invention
  • FIG. 3 is a top view of the overall structure of a sounding unit in an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the overall structure of the middle membrane of the middle sound membrane according to the embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the overall structure of the first skeleton in the embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the overall structure of the second skeleton in the embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the overall structure of the upper cover of the basin frame according to the embodiment of the present invention.
  • the sound-generating unit includes a basin frame 100 , a magnetic circuit system 200 and a vibration system 300 .
  • the magnetic circuit system 200 and the vibration system 300 are both disposed on the basin frame 100 , and the magnetic circuit system 200 makes the vibration system 300 vibrate to emit sound.
  • the basin frame 100 includes an upper cover 110 and a lower cover 120 , the upper cover 110 and the lower cover 120 cooperate to form a accommodating space 101 , and the upper cover 110 is provided with a first Matching wall 111 .
  • the magnetic circuit system 200 is fixed to the lower cover 120 and located in the accommodating space 101 , and a magnetic gap 230 is formed in the magnetic circuit system 200 .
  • the vibration system 300 includes a first frame 310 , a second frame 320 , a sound film 330 and a voice coil 340 , the first frame 310 is annularly arranged, and the first frame 310 is provided with The second matching wall 311 is disposed correspondingly to the first matching wall 111 , so that the first frame 310 is engaged with the outer circumference of the upper cover 110 and the inner ring of the sound membrane 330 It is fixed with the outer ring of the first frame 310 , the outer ring of the sound film 330 is fixed with the lower cover 120 , the second frame 320 is arranged in a ring shape, and the second frame 320 is connected with the sound film
  • the voice coil 340 is fixed and located on the side of the sound film 330 facing the magnetic circuit system 200 , the voice coil 340 is fixed with the second frame 320 , and the voice coil 340 extends into the interior of the magnetic gap 230 .
  • the first matching wall 111 and the second matching wall 311 are arranged correspondingly, so that the first frame 310 and the upper cover 110 have higher matching and positioning accuracy; at the same time, the sound membrane 330 is matched with the first frame 310, and the second frame 320 is arranged on the On the membrane 330, the voice coil 340 is arranged on the second bobbin 320, and the voice coil 340 corresponds to the magnetic gap 230 of the magnetic circuit system 200. Therefore, in the overall sound-generating unit, the voice coil 330 and the magnetic circuit system 200 are separated from each other. Concentricity is guaranteed.
  • the upper cover 110 is located above the lower cover 120 , the sound membrane 330 is located on the periphery of the upper cover 110 , and a first frame 310 is arranged between the sound membrane 330 and the upper cover 110 , A frame 310 is annularly arranged, therefore, when the first matching wall 111 and the second matching wall 311 are matched, the positional accuracy of the sound membrane 330 relative to the first frame 310 and the upper cover 110 is ensured.
  • the second frame 320 is disposed below the sound film 330 , the voice coil 340 is fixed to the second frame 320 , the voice coil 340 corresponds to the magnetic gap 230 of the magnetic circuit system 200 , and the magnetic circuit system 200 is connected to the lower cover 120 Therefore, in the overall structure, the concentricity between the sound membrane 330 and the magnetic circuit system 200 is also guaranteed.
  • the first frame 310 is equivalent to the installation support structure of the sound film 330.
  • the first matching wall 111 and the second matching wall 311 are assembled through surface contact, which not only ensures the installation accuracy of the sound film 330 and the upper cover 110, but also ensures the installation accuracy of the sound film 330 and the upper cover 110. It ensures the concentricity of the sound film 330 and the magnetic circuit system 200 in the overall structure, and also reduces the side width of the sound film 330 gluing surface, reduces the gluing process, improves the assembly efficiency, and effectively increases the effective radiation area of the sound film 330. product performance.
  • the inner ring of the sound membrane 330 is provided with a third matching wall 3311 , and the third matching wall 3311 and the second matching wall 311 are disposed correspondingly.
  • first matching walls 111 there are at least two first matching walls 111 , and at least two of the first matching walls 111 are disposed on the outer circumference of the upper cover 110 at intervals.
  • the second matching walls 311 there are at least two second matching walls 311 , at least two second matching walls 311 are disposed at intervals on the outer circumference of the first frame 310 , and the second matching walls 311 are connected to the outer circumference of the first frame 310 .
  • the first matching walls 111 are in one-to-one correspondence.
  • FIG. 4 there are at least two third matching walls 3311 , at least two of the third matching walls 3311 are disposed at intervals on the inner ring of the sound membrane 330 , and the third matching walls 3311 and The second matching walls 311 are in one-to-one correspondence.
  • first matching walls 111 there are four first matching walls 111 , second matching walls 311 and third matching walls 3311 .
  • the first frame 310 is buckled on the periphery of the upper cover 110, and the sound membrane 330 is buckled at the periphery of the first frame 310, forming an interlocking matching structure, so that the positioning accuracy of the matching is achieved. higher, the concentricity between the sound film 330 and the magnetic circuit system 200 is finally improved.
  • the sound membrane 330 includes a middle membrane 331 , an outer membrane 332 and a connecting ring 333 , the third matching wall 3311 is disposed on the inner ring of the middle membrane 331 , and the outer membrane 332
  • the outer ring is fixed to the lower cover 120
  • the outer ring of the middle membrane 331 and the inner ring of the outer membrane 332 are both fixed to the connecting ring 333
  • the second frame 320 is fixed to the connecting ring 333 .
  • the middle film 331 is further provided with a first folding ring protruding toward the upper cover 110
  • the outer film 332 is further provided with a second folding ring protruding toward the lower cover 120 .
  • the basin frame 100 further includes a middle frame 130, the middle frame 130 is fixed with the lower cover 120 and is located on the side of the lower cover 120 facing the upper cover 110, so The outer ring of the outer membrane 332 is fixed to the middle frame 130 .
  • the lower end of the middle frame 130 is fixed to the upper part of the lower cover 120 , the upper cover 110 , the middle frame 130 and the lower cover 120 cooperate together to form an accommodating space 101 , and the magnetic circuit system 200 is arranged in the accommodating space 101 , and the outer edge of the outer membrane 332 is fixed with the middle frame 130 .
  • the vibration system 300 further includes a centering support piece 350 , the centering support piece 350 is fixed with the second frame 320 , and the centering support piece 350 is located in the second frame 320 .
  • the frame 320 faces the side of the lower cover 120 .
  • the magnetic circuit system 200 During operation, the magnetic circuit system 200 generates a magnetic field, and the voice coil 340 moves in the magnetic gap 230, thereby driving the second frame 320 to move.
  • the vibration system 300 further includes an elastic support member 360 and an installation frame 370, the installation frame 370 is fixed to the middle frame 130 or the installation frame 370 is fixed to the lower cover 120,
  • the elastic support member 360 and the sound membrane 330 are spaced apart, and the outer ring of the elastic support member 360 is fixed to the mounting frame 370 , and the inner ring of the elastic support member 360 is connected to the second frame 320 Fixed, the centering support piece 350 is located between the elastic support member 360 and the sound membrane 330 .
  • the lower cover 120 is formed with a plurality of annular steps
  • the mounting frame 370 is matched with the uppermost step surface of the lower cover 120
  • the edge of the centering support piece 350 is located between the lower cover 120 and the lower cover 120 .
  • the inner edge of the elastic support member 360 is fixed to the second frame 320
  • the outer edge of the elastic support member 360 is fixed to the installation frame 370 .
  • the elastic support member 360 may be a diaphragm structure.
  • two elastic support members 360 are provided, and the two elastic support members 360 are arranged around the outer circumference of the second frame 320 at intervals.
  • two elastic support members 360 are provided, which are located on the left and right sides of the magnetic circuit system 200 respectively.
  • the magnetic circuit system 200 includes a main magnet 210 and a secondary magnet 220 . Both the main magnet 210 and the secondary magnet 220 are fixed to the lower cover 120 , and the secondary magnet 220 is provided with At least two, at least two of the auxiliary magnets 220 surround the outer circumference of the main magnet 210 at intervals, and the auxiliary magnets 220 and the main magnet 210 are arranged at intervals to form the magnetic gap 230 .
  • the main magnet 210 may include an upper magnetic block, a lower magnetic block and a main pole core, the main pole core is provided between the upper magnetic block and the lower magnetic block, and the secondary magnet 220 is provided in On the outer periphery of the main magnet 210 , the auxiliary magnet 220 and the main magnet 210 are both fixed on the inner bottom wall of the lower cover 120 , and the auxiliary magnet 220 and the main magnet 210 are arranged at intervals, so that the main magnet 210 and the auxiliary magnet 220 are formed In the magnetic gap 230 , the lower end of the voice coil 340 extends into the magnetic gap 230 .
  • the upper cover 110 is provided with four first matching walls 111 , and the four first matching walls 111 are disposed on the outer circumference of the upper cover 110 at intervals.
  • the four second matching walls 311 are in one-to-one correspondence with the first matching walls 111 .
  • the four third matching walls 3311 are in one-to-one correspondence with the second matching walls 311 .
  • the upper cover 110 is provided with a fourth matching wall 112
  • the fourth matching wall 112 is fixed to the edge of the first matching wall 111 and extends along the horizontal direction
  • the auxiliary magnet 220 is provided with Four
  • the auxiliary magnets 220 are in one-to-one correspondence with the fourth matching wall 112
  • the opposite sides of the auxiliary magnet 220 are respectively connected with the lower cover 120 and the fourth matching wall 112
  • the adjacent An avoidance gap is formed between the fourth matching walls 112 .
  • the first matching wall 111 , the second matching wall 311 and the third matching wall 3311 are all in one-to-one correspondence. Therefore, the adjacent first matching wall 111 / the adjacent second matching wall 311 / The gaps between the adjacent third matching walls 3311 are avoidance gaps, and there are four avoidance gaps, and the four fifth matching walls 321 of the second frame 320 pass through the avoidance gaps, so that the voice coil 340 passes through the fifth matching walls 321 and The second frame 320 is connected, and when the voice coil 340 moves inside the magnetic gap 230 , it drives the second frame 320 to move, thereby finally driving the sound membrane 330 to vibrate, which is not repeated here.
  • the inner ring of the second frame 320 is provided with fifth matching walls 321, the fifth matching walls 321 are provided with four, and the fifth matching walls 321 are in one-to-one correspondence with the avoidance gaps,
  • the voice coil 340 is fixed with the four fifth matching walls 321 .
  • the lower end edge of the first matching wall 111 extends outward to form a horizontal fourth matching wall 112 ; in the embodiment shown in FIG. 2 , the lower wall surface of the fourth matching wall 112 and the auxiliary The upper surface of the magnet 220 is matched; with reference to FIGS. 1 and 2 , the fifth matching wall 321 is close to the voice coil 340 through the avoidance gap, so that the voice coil 340 is connected with the second skeleton 320 through the fifth matching wall 321, and the avoidance gap provides The effective avoidance space for the connection between the second frame 320 and the voice coil 340 is ensured, and the vibration space is also ensured.
  • Another embodiment also provides a loudspeaker, comprising the sound-generating unit according to any one of the above embodiments.
  • the loudspeaker includes the aforementioned sound-generating unit, and the concentricity of the sound membrane 330 and the magnetic circuit system 200 is higher, which improves the product performance of the sound-generating unit.
  • the loudspeaker includes a casing, the casing is provided with a sound outlet, and the sound generating unit is fixed inside the casing.
  • the sound generating unit emits sound during operation, and the sound is transmitted to the outside of the casing through the sound outlet, which will not be repeated here.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plurality means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.
  • a first feature "on” or “under” a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch.
  • the first feature being “above”, “over” and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

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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)

Abstract

本发明提供了一种发声单体及扬声器，发声单体包括盆架、磁路系统和振动系统，盆架包括上盖和下盖，上盖的外周设有第一配合壁；磁路系统形成有磁间隙；振动系统包括第一骨架、第二骨架、音膜和音圈，第一骨架呈环状设置，第一骨架设有第二配合壁，音膜的内环与第一骨架的外环固定，音膜的外环与下盖固定，第二骨架呈环状设置，第二骨架与音膜固定，音圈与第二骨架固定，音圈伸入磁间隙的内部。第一配合壁与第二配合壁对应设置，使第一骨架和上盖具有更高的配合定位精度；同时，音膜与第一骨架配合，第二骨架设在音膜上，音圈又设在第二骨架上，而音圈与磁路系统的磁间隙对应，因而，在整体的发声单体中，音膜与磁路系统的同心度得到了保证。

Description

发声单体及扬声器 技术领域
本发明涉及发声装置技术领域，特别是涉及一种发声单体及扬声器。
 背景技术
发声单体包括振动系统和磁路系统。其中，振动系统包括音膜和音圈，音圈连接在音膜上；磁路系统形成有磁间隙，音膜上的音圈伸入磁间隙的内部。
然而，传统的发声单体中，音膜与磁路系统的同心度较差，从而影响到发声单体的发声性能，进而影响到整个扬声器的工作性能。
 技术问题 技术解决方案 有益效果
本发明的目的在于提供一种发声单体及扬声器；该发声单体中，音膜和磁路系统的同心度高；该扬声器包括前述的发声单体，由于音膜和磁路系统的同心度高，产品性能更好。
一个实施例提供了一种发声单体，包括：
盆架，所述盆架包括上盖和下盖，所述上盖和所述下盖配合形成容纳空间，所述上盖的外周设有第一配合壁；
磁路系统，所述磁路系统与所述下盖固定并位于所述容纳空间，所述磁路系统形成有磁间隙；及
振动系统，所述振动系统包括第一骨架、第二骨架、音膜和音圈，所述第一骨架呈环状设置，所述第一骨架设有第二配合壁，所述第二配合壁与所述第一配合壁对应设置，以使所述第一骨架配合于所述上盖的外周，所述音膜的内环与所述第一骨架的外环固定，所述音膜的外环与所述下盖固定，所述第二骨架呈环状设置，所述第二骨架与所述音膜固定并位于所述音膜的朝向所述磁路系统的一侧，所述音圈与所述第二骨架固定，所述音圈伸入所述磁间隙的内部。
上述发声单体，第一配合壁与第二配合壁对应设置，使第一骨架和上盖具有更高的配合定位精度；同时，音膜与第一骨架配合，第二骨架设在音膜上，音圈又设在第二骨架上，而音圈与磁路系统的磁间隙对应，因而，在整体的发声单体中，音膜与磁路系统的同心度得到了保证。
下面进一步对技术方案进行说明：
在其中一个实施例中，所述音膜的内环设有第三配合壁，所述第三配合壁与所述第二配合壁对应设置。
在其中一个实施例中，所述第一配合壁设有至少两个，至少两个所述第一配合壁呈间隔设在所述上盖的外周；
所述第二配合壁设有至少两个，至少两个所述第二配合壁呈间隔设在所述第一骨架的外周，且所述第二配合壁与所述第一配合壁一一对应；
所述第三配合壁设有至少两个，至少两个所述第三配合壁呈间隔设在所述音膜的内环，且所述第三配合壁与所述第二配合壁一一对应。
在其中一个实施例中，所述音膜包括中膜、外膜和连接环，所述第三配合壁设在所述中膜的内环，所述外膜的外环与所述下盖固定，所述中膜的外环和所述外膜的内环均与所述连接环固定，所述第二骨架与所述连接环固定。
在其中一个实施例中，所述盆架还包括中框，所述中框与所述下盖固定并位于所述下盖的朝向所述上盖的一侧，所述外膜的外环与所述中框固定。
在其中一个实施例中，所述振动系统还包括定心支片，所述定心支片与所述第二骨架固定，且所述定心支片位于所述第二骨架朝向所述下盖的一侧。
在其中一个实施例中，所述振动系统还包括弹性支撑件和安装框，所述安装框与所述中框固定或所述安装框与所述下盖固定，所述弹性支撑件与所述音膜呈间隔设置，且所述弹性支撑件的外环与所述安装框固定，所述弹性支撑件的内环与所述第二骨架固定，所述定心支片位于所述弹性支撑件和所述音膜之间。
在其中一个实施例中，所述弹性支撑件设有两个，两个所述弹性支撑件呈间隔环绕设在所述第二骨架的外周。
在其中一个实施例中，所述磁路系统包括主磁体和副磁体，所述主磁体和所述副磁体均与所述下盖固定，所述副磁体设有至少两个，至少两个所述副磁体呈间隔环绕在所述主磁体的外周，且所述副磁体和所述主磁体之间呈间隔设置并形成所述磁间隙。
在其中一个实施例中，所述上盖设有四个第一配合壁，四个所述第一配合壁呈间隔设在所述上盖的外周；所述第二配合壁设有四个，四个所述第二配合壁与所述第一配合壁一一对应；所述第三配合壁设有四个，四个所述第三配合壁与所述第二配合壁一一对应。
在其中一个实施例中，所述上盖设有第四配合壁，所述第四配合壁与所述第一配合壁的边缘固定并沿水平方向延伸设置，所述副磁体设有四个，所述副磁体与所述第四配合壁一一对应，所述副磁体的相对两侧分别与所述下盖和所述第四配合壁连接，相邻的所述第四配合壁之间形成避让间隙；
所述第二骨架的内环设有第五配合壁，所述第五配合壁设有四个，所述第五配合壁与所述避让间隙一一对应，所述音圈与四个所述第五配合壁固定。
另一个实施例还提供了一种扬声器，包括如上述任一个技术方案所述的发声单体。
上述扬声器，包括前述任一个技术方案所述的发声单体，音膜和磁路系统的同心度更高，提高了发声单体的产品性能。
 附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
此外，附图并不是以1:1的比例绘制，并且各个元件的相对尺寸在附图中仅示例地绘制，而不一定按照真实比例绘制。
图1为本发明实施例中发声单体的整体结构爆炸图；
图2为本发明实施例中发声单体的整体结构截面图；
图3为本发明实施例中发声单体的整体结构俯视图；
图4为本发明实施例中音膜的中膜整体结构示意图；
图5为本发明实施例中第一骨架的整体结构示意图；
图6为本发明实施例中第二骨架的整体结构示意图；
图7为本发明实施例中盆架的上盖整体结构示意图。
附图标注说明：
100、盆架；101、容纳空间；110、上盖；111、第一配合壁；112、第四配合壁；120、下盖；130、中框；200、磁路系统；210、主磁体；220、副磁体；230、磁间隙；300、振动系统；310、第一骨架；311、第二配合壁；320、第二骨架；321、第五配合壁；330、音膜；331、中膜；3311、第三配合壁；332、外膜；333、连接环；340、音圈；350、定心支片；360、弹性支撑件；370、安装框。
 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：
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
一个实施例提供了一种发声单体，请参照图1至图5、图7，该发声单体包括盆架100、磁路系统200和振动系统300。
磁路系统200和振动系统300均设在盆架100上，磁路系统200使振动系统300进行振动，以发出声音。
请参照图1和图2，所述盆架100包括上盖110和下盖120，所述上盖110和所述下盖120配合形成容纳空间101，所述上盖110的外周设有第一配合壁111。
请参照图1和图2，所述磁路系统200与所述下盖120固定并位于所述容纳空间101，所述磁路系统200形成有磁间隙230。
请参照图1和图2，所述振动系统300包括第一骨架310、第二骨架320、音膜330和音圈340，所述第一骨架310呈环状设置，所述第一骨架310设有第二配合壁311，所述第二配合壁311与所述第一配合壁111对应设置，以使所述第一骨架310配合于所述上盖110的外周，所述音膜330的内环与所述第一骨架310的外环固定，所述音膜330的外环与所述下盖120固定，所述第二骨架320呈环状设置，所述第二骨架320与所述音膜330固定并位于所述音膜330的朝向所述磁路系统200的一侧，所述音圈340与所述第二骨架320固定，所述音圈340伸入所述磁间隙230的内部。
第一配合壁111与第二配合壁311对应设置，使第一骨架310和上盖110具有更高的配合定位精度；同时，音膜330与第一骨架310配合，第二骨架320设在音膜330上，音圈340又设在第二骨架320上，而音圈340与磁路系统200的磁间隙230对应，因而，在整体的发声单体中，音膜330与磁路系统200的同心度得到了保证。
如图1和图2所示的实施例中，上盖110位于下盖120的上方，音膜330位于上盖110的外围，音膜330和上盖110之间设有第一骨架310，第一骨架310呈环状设置，因此，第一配合壁111和第二配合壁311在配合时，保证了音膜330相对第一骨架310和上盖110的位置精度。同时，第二骨架320设在音膜330的下方，而音圈340与第二骨架320固定，音圈340又与磁路系统200的磁间隙230对应，而磁路系统200又与下盖120固定，从而在整体结构中，音膜330与磁路系统200的同心度也得到了保证。
该发声单体，第一骨架310相当于音膜330的安装支撑结构，第一配合壁111与第二配合壁311通过面接触装配，不仅保证了音膜330与上盖110的安装精度，进而保证整体结构中音膜330和磁路系统200的同心度，而且还减少音膜330胶合面边宽，减少胶合工序，提高装配效率，并有效增加音膜330的有效辐射面积，提高发声单体的产品性能。
请参照图1、图2、图4和图5，所述音膜330的内环设有第三配合壁3311，所述第三配合壁3311与所述第二配合壁311对应设置。
请参照图7，所述第一配合壁111设有至少两个，至少两个所述第一配合壁111呈间隔设在所述上盖110的外周。
请参照图5，所述第二配合壁311设有至少两个，至少两个所述第二配合壁311呈间隔设在所述第一骨架310的外周，且所述第二配合壁311与所述第一配合壁111一一对应。
请参照图4，所述第三配合壁3311设有至少两个，至少两个所述第三配合壁3311呈间隔设在所述音膜330的内环，且所述第三配合壁3311与所述第二配合壁311一一对应。
请参照图1、图2、图4和图5，第一配合壁111、第二配合壁311和第三配合壁3311均设有四个。如此设置，在整个结构安装之后，相当于第一骨架310环扣在上盖110的外围，音膜330环扣在第一骨架310的外围，形成环环相扣的配合结构，使得配合定位精度更高，最终提高音膜330与磁路系统200的同心度。
请参照图1和图2，所述音膜330包括中膜331、外膜332和连接环333，所述第三配合壁3311设在所述中膜331的内环，所述外膜332的外环与所述下盖120固定，所述中膜331的外环和所述外膜332的内环均与所述连接环333固定，所述第二骨架320与所述连接环333固定。
请参照图1和图2，中膜331还设有朝上盖110一侧凸设的第一折环，外膜332还设有朝下盖120一侧凸设的第二折环。
请参照图1和图2，所述盆架100还包括中框130，所述中框130与所述下盖120固定并位于所述下盖120的朝向所述上盖110的一侧，所述外膜332的外环与所述中框130固定。
如图2所示的实施例中，中框130的下端与下盖120的上方固定，上盖110、中框130和下盖120共同配合形成容纳空间101，磁路系统200设在容纳空间101，而外膜332的外边缘与中框130固定。
请参照图1和图2，所述振动系统300还包括定心支片350，所述定心支片350与所述第二骨架320固定，且所述定心支片350位于所述第二骨架320朝向所述下盖120的一侧。
工作时，磁路系统200产生磁场，音圈340在磁间隙230内活动，从而带动第二骨架320活动，定心支片350的设置保证音圈340只在上下方向移动，这里不再赘述。
请参照图1和图2，所述振动系统300还包括弹性支撑件360和安装框370，所述安装框370与所述中框130固定或所述安装框370与所述下盖120固定，所述弹性支撑件360与所述音膜330呈间隔设置，且所述弹性支撑件360的外环与所述安装框370固定，所述弹性支撑件360的内环与所述第二骨架320固定，所述定心支片350位于所述弹性支撑件360和所述音膜330之间。
如图1和图2所示的实施例中，下盖120形成有多个环形台阶，安装框370与下盖120最上方的台阶面配合，而定心支片350的边缘位于下盖120和安装框370之间，弹性支撑件360的内边缘与第二骨架320固定，弹性支撑件360的外边缘与安装框370固定。
进一步地，如图1和图2所示的实施例中，弹性支撑件360可以是振膜结构。
请参照图1和图2，所述弹性支撑件360设有两个，两个所述弹性支撑件360呈间隔环绕设在所述第二骨架320的外周。
如图1和图2所示的实施例中，弹性支撑件360设有两个，分别位于磁路系统200的左侧和右侧。
请参照图1和图2，所述磁路系统200包括主磁体210和副磁体220，所述主磁体210和所述副磁体220均与所述下盖120固定，所述副磁体220设有至少两个，至少两个所述副磁体220呈间隔环绕在所述主磁体210的外周，且所述副磁体220和所述主磁体210之间呈间隔设置并形成所述磁间隙230。
如图1和图2所示的实施例中，主磁体210可以包括上磁块、下磁块和主极芯，主极芯设在上磁块和下磁块之间，副磁体220设在主磁体210的外周，副磁体220和主磁体210均固定在下盖120的内侧底壁上，且副磁体220与主磁体210之间呈间隔设置，从而使主磁体210和副磁体220之间形成磁间隙230，音圈340的下端伸入磁间隙230的内部。
请参照图7，所述上盖110设有四个第一配合壁111，四个所述第一配合壁111呈间隔设在所述上盖110的外周。
请参照图5，所述第二配合壁311设有四个，四个所述第二配合壁311与所述第一配合壁111一一对应。
请参照图4，所述第三配合壁3311设有四个，四个所述第三配合壁3311与所述第二配合壁311一一对应。
请参照图7，所述上盖110设有第四配合壁112，所述第四配合壁112与所述第一配合壁111的边缘固定并沿水平方向延伸设置，所述副磁体220设有四个，所述副磁体220与所述第四配合壁112一一对应，所述副磁体220的相对两侧分别与所述下盖120和所述第四配合壁112连接，相邻的所述第四配合壁112之间形成避让间隙。
如图1所示的实施例中，第一配合壁111、第二配合壁311和第三配合壁3311均一一对应，因此，相邻第一配合壁111/相邻第二配合壁311/相邻第三配合壁3311之间的间隙为避让间隙，且避让间隙有四个，而第二骨架320的四个第五配合壁321通过避让间隙，使得音圈340通过第五配合壁321与第二骨架320连接，当音圈340在磁间隙230的内部运动时，带动第二骨架320运动，从而最终带动音膜330振动，不再赘述。
请参照图6，所述第二骨架320的内环设有第五配合壁321，所述第五配合壁321设有四个，所述第五配合壁321与所述避让间隙一一对应，所述音圈340与四个所述第五配合壁321固定。
如图7所示的实施例中，第一配合壁111的下端边缘朝外侧延伸形成水平的第四配合壁112；如图2所示的实施例中，第四配合壁112的下壁面与副磁体220的上表面配合；参考如图1和图2可知，第五配合壁321通过避让间隙靠近音圈340，以使音圈340通过第五配合壁321与第二骨架320连接，避让间隙提供了第二骨架320与音圈340连接的有效避让空间，同时也保证了振动空间。
另一个实施例还提供了一种扬声器，包括如上述任一个实施例所述的发声单体。
该扬声器，包括前述的发声单体，音膜330和磁路系统200的同心度更高，提高了发声单体的产品性能。
进一步地，扬声器包括壳体，壳体开设有出声口，发声单体固定在壳体的内部。
发声单体在工作时发出声音，声音通过出声口传播至壳体的外部，这里不再赘述。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (12)

  1. 一种发声单体，其特征在于，包括：
    盆架，所述盆架包括上盖和下盖，所述上盖和所述下盖配合形成容纳空间，所述上盖的外周设有第一配合壁；
    磁路系统，所述磁路系统与所述下盖固定并位于所述容纳空间，所述磁路系统形成有磁间隙；及
    振动系统，所述振动系统包括第一骨架、第二骨架、音膜和音圈，所述第一骨架呈环状设置，所述第一骨架设有第二配合壁，所述第二配合壁与所述第一配合壁对应设置，以使所述第一骨架配合于所述上盖的外周，所述音膜的内环与所述第一骨架的外环固定，所述音膜的外环与所述下盖固定，所述第二骨架呈环状设置，所述第二骨架与所述音膜固定并位于所述音膜的朝向所述磁路系统的一侧，所述音圈与所述第二骨架固定，所述音圈伸入所述磁间隙的内部。
  2. 根据权利要求1所述的发声单体，其特征在于，所述音膜的内环设有第三配合壁，所述第三配合壁与所述第二配合壁对应设置。
  3. 根据权利要求2所述的发声单体，其特征在于，所述第一配合壁设有至少两个，至少两个所述第一配合壁呈间隔设在所述上盖的外周；
    所述第二配合壁设有至少两个，至少两个所述第二配合壁呈间隔设在所述第一骨架的外周，且所述第二配合壁与所述第一配合壁一一对应；
    所述第三配合壁设有至少两个，至少两个所述第三配合壁呈间隔设在所述音膜的内环，且所述第三配合壁与所述第二配合壁一一对应。
  4. 根据权利要求2所述的发声单体，其特征在于，所述音膜包括中膜、外膜和连接环，所述第三配合壁设在所述中膜的内环，所述外膜的外环与所述下盖固定，所述中膜的外环和所述外膜的内环均与所述连接环固定，所述第二骨架与所述连接环固定。
  5. 根据权利要求4所述的发声单体，其特征在于，所述盆架还包括中框，所述中框与所述下盖固定并位于所述下盖的朝向所述上盖的一侧，所述外膜的外环与所述中框固定。
  6. 根据权利要求5所述的发声单体，其特征在于，所述振动系统还包括定心支片，所述定心支片与所述第二骨架固定，且所述定心支片位于所述第二骨架朝向所述下盖的一侧。
  7. 根据权利要求6所述的发声单体，其特征在于，所述振动系统还包括弹性支撑件和安装框，所述安装框与所述中框固定或所述安装框与所述下盖固定，所述弹性支撑件与所述音膜呈间隔设置，且所述弹性支撑件的外环与所述安装框固定，所述弹性支撑件的内环与所述第二骨架固定，所述定心支片位于所述弹性支撑件和所述音膜之间。
  8. 根据权利要求7所述的发声单体，其特征在于，所述弹性支撑件设有两个，两个所述弹性支撑件呈间隔环绕设在所述第二骨架的外周。
  9. 根据权利要求1-8任一项所述的发声单体，其特征在于，所述磁路系统包括主磁体和副磁体，所述主磁体和所述副磁体均与所述下盖固定，所述副磁体设有至少两个，至少两个所述副磁体呈间隔环绕在所述主磁体的外周，且所述副磁体和所述主磁体之间呈间隔设置并形成所述磁间隙。
  10. 根据权利要求9所述的发声单体，其特征在于，所述上盖设有四个第一配合壁，四个所述第一配合壁呈间隔设在所述上盖的外周；所述第二配合壁设有四个，四个所述第二配合壁与所述第一配合壁一一对应；所述第三配合壁设有四个，四个所述第三配合壁与所述第二配合壁一一对应。
  11. 根据权利要求10所述的发声单体，其特征在于，所述上盖设有第四配合壁，所述第四配合壁与所述第一配合壁的边缘固定并沿水平方向延伸设置，所述副磁体设有四个，所述副磁体与所述第四配合壁一一对应，所述副磁体的相对两侧分别与所述下盖和所述第四配合壁连接，相邻的所述第四配合壁之间形成避让间隙；
    所述第二骨架的内环设有第五配合壁，所述第五配合壁设有四个，所述第五配合壁与所述避让间隙一一对应，所述音圈与四个所述第五配合壁固定。
  12. 一种扬声器，其特征在于，包括如权利要求1-9任一项所述的发声单体。
     
     
PCT/CN2020/125883 2020-10-22 2020-11-02 发声单体及扬声器 WO2022082854A1 (zh)

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