CN212034341U - Loudspeaker - Google Patents

Loudspeaker Download PDF

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Publication number
CN212034341U
CN212034341U CN202020856702.0U CN202020856702U CN212034341U CN 212034341 U CN212034341 U CN 212034341U CN 202020856702 U CN202020856702 U CN 202020856702U CN 212034341 U CN212034341 U CN 212034341U
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CN
China
Prior art keywords
voice coil
annular
diaphragm
vibrating diaphragm
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202020856702.0U
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Chinese (zh)
Inventor
肖波
令狐荣林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Optoelectronic Changzhou Co Ltd
Original Assignee
AAC Optoelectronic Changzhou Co Ltd
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Publication date
Application filed by AAC Optoelectronic Changzhou Co Ltd filed Critical AAC Optoelectronic Changzhou Co Ltd
Priority to CN202020856702.0U priority Critical patent/CN212034341U/en
Priority to PCT/CN2020/093207 priority patent/WO2021232475A1/en
Application granted granted Critical
Publication of CN212034341U publication Critical patent/CN212034341U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

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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

The utility model provides a loudspeaker. This speaker includes the basin frame, magnetic circuit and vibration system, vibration system includes the voice coil loudspeaker voice coil, the skeleton, first vibrating diaphragm, second vibrating diaphragm and third vibrating diaphragm, the skeleton includes second annular skeleton and first annular skeleton, second annular skeleton include with second vibrating diaphragm fixed connection's first annular skeleton main part, extend from second annular skeleton main part towards the voice coil loudspeaker voice coil and with the fixed connecting plate of voice coil loudspeaker voice coil and extend the second turn-ups that forms from one side of connecting plate towards the direction that is close to first vibrating diaphragm, first annular skeleton includes first annular skeleton main part, the limiting plate that sets up between first annular skeleton main part and connecting plate reaches the first turn-ups of formation towards first vibrating diaphragm extension from one side of limiting plate, first turn-ups supports with the second turn-ups and leans on, the connecting plate, the limiting plate, second turn-ups and first turn-ups enclose to close and form the glue groove, fill glue in the glue groove. This scheme can improve speaker vibration system's whole vibration stability to improve the sound generating performance of speaker.

Description

Loudspeaker
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of the sounding device, especially, relate to a loudspeaker.
[ background of the invention ]
With the advent of the mobile internet era, the number of smart mobile devices has been increasing, and smart mobile devices have various functions, one of which is a high-quality music function, and a speaker is an essential component for realizing the high-quality music function.
In order to make the sound production scope of speaker cover more extensively and the effect is more three-dimensional, can adopt the speaker, the speaker includes the basin frame usually, install vibration system and the magnetic circuit on the basin frame, vibration system includes the voice coil loudspeaker voice coil, the skeleton, vibrating diaphragm and dome, magnetic circuit drive voice coil loudspeaker voice coil vibration, the both sides of voice coil loudspeaker voice coil set up a set of vibrating diaphragm and dome respectively, with organizing the dome and being connected with the vibrating diaphragm, the voice coil loudspeaker voice coil is connected in order to drive the vibrating diaphragm sound production that corresponds through skeleton and two sets of domes on its vibration direction, but the vibrating diaphragm of voice coil loudspeaker voice coil both sides is synchronous and vibrate steadily to the mode that sets up of single skeleton texture in the correlation.
[ Utility model ] content
An object of the utility model is to provide a loudspeaker, vibration stability is higher, and the sound production effect is better.
The technical scheme of the utility model as follows: providing a loudspeaker, which comprises a basin frame with an accommodating space, a magnetic circuit system accommodated in the accommodating space and provided with a magnetic gap, and a vibration system accommodated in the accommodating space and driven by the magnetic circuit system to vibrate, wherein the vibration system comprises a first vibrating diaphragm arranged between the basin frame and the magnetic circuit system, a second vibrating diaphragm arranged opposite to the first vibrating diaphragm at an interval, a third vibrating diaphragm arranged between the first vibrating diaphragm and the second vibrating diaphragm, a voice coil inserted into the magnetic gap, a first annular framework arranged between the first vibrating diaphragm and the third vibrating diaphragm, and a second annular framework arranged between the second vibrating diaphragm and the third vibrating diaphragm; the first annular framework is erected on the second annular framework; the second annular framework comprises a second annular framework main body which vibrates along the vibration direction of the voice coil and a connecting plate which is connected between the second annular framework main body and the voice coil; the first annular framework comprises a first annular framework main body which vibrates along the vibration direction of the voice coil and a limiting plate arranged between the first annular framework main body and the connecting plate; the connecting plate with limiting plate fixed connection, one side of connecting plate is towards being close to the direction of first vibrating diaphragm extends and forms first turn-ups, one side of limiting plate is towards being close to the direction of first vibrating diaphragm extends and forms the second turn-ups, first turn-ups one end with the turn-ups one end of second supports and leans on, the connecting plate the limiting plate first turn-ups with the second turn-ups encloses to close and forms the glue groove.
Furthermore, the end of the first annular framework main body, which is close to the second annular framework, extends towards the voice coil to form a first connecting edge, the limiting plate comprises a first connecting sheet and a fixed connecting sheet, the first connecting sheet extends from the side, which is close to the voice coil, of the first connecting edge towards the direction close to the second annular framework, the fixed connecting sheet extends from the end, which is close to the second annular framework, of the first connecting sheet towards the voice coil, the second flanging extends from the fixed connecting sheet, and the other end of the second flanging abuts against the first connecting sheet; the second ring-shaped framework main body is close to the second vibrating diaphragm end and extends towards the voice coil to form a second connecting edge, the second connecting edge is close to the voice coil side and extends towards the direction close to the first ring-shaped framework to form a second connecting sheet, and the connecting sheet is close to the second connecting sheet and extends towards the first ring-shaped framework end to form the second connecting sheet.
Furthermore, the vibration system further comprises a flexible circuit board arranged between the second connecting edge and the second vibrating diaphragm and electrically connected with the voice coil, the connecting plate is provided with an avoiding hole, and a lead of the voice coil is electrically connected with the flexible circuit board through the avoiding hole.
Furthermore, the second annular framework main body is close to the first annular framework end and extends towards the direction far away from the voice coil to form a second extension edge, and one end of the third diaphragm is fixed between the second extension edge and the first connecting edge.
Further, the vibration system further comprises a gasket disposed between the second extending edge and the first connecting edge, and the third diaphragm is sandwiched between the gasket and the first connecting edge.
Furthermore, the second flanging comprises a substrate close to the voice coil and an extension piece connected to the substrate close to the first flanging side, and the height of the substrate in the voice coil vibration direction is larger than that of the extension piece in the voice coil vibration direction.
Furthermore, the connecting plate is far away from the end of the second annular framework body and extends to form a connecting pin fixedly connected with the voice coil.
Further, the first diaphragm comprises a first inward-folding ring, a first dome and a first outward-folding ring, wherein one end of the first inward-folding ring is fixedly connected with the magnetic circuit system, the other end of the first inward-folding ring is fixed on the first annular framework, one end of the first dome is fixedly connected with the first inward-folding ring, one end of the first outward-folding ring is fixedly connected with the first dome, the first inward-folding ring is far away from the first dome, and the other end of the first outward-folding ring is fixedly connected with the basin stand.
Furthermore, the second diaphragm comprises a second dome with one end fixedly connected to the second annular framework and a second folding ring with one end fixedly connected to the second spherical dome and the other end fixedly connected to the basin stand, wherein the one end of the second folding ring is far away from the second annular framework.
Further, the basin stand comprises a support frame connected with the third diaphragm, a bottom cover covering one side of the support frame close to the second diaphragm, and a top cover covering one side of the support frame close to the first diaphragm, the first diaphragm is arranged between the top cover and the support frame, the magnetic circuit system is fixedly connected with the top cover, the first diaphragm and the magnetic circuit system surround to form a first front cavity, one side of the top cover is provided with a first sound outlet communicated with the first front cavity, the second diaphragm is arranged between the bottom cover and the support frame, the second diaphragm, the second annular framework main body and the third diaphragm surround to form a second front cavity, one side of the support frame is provided with a second sound outlet communicated with the second front cavity, the first annular framework main body is provided with an air vent, the bottom cover, the second diaphragm, the second annular framework main body, the third diaphragm, the support frame, the first diaphragm and the magnetic circuit system surround to form a rear cavity.
The beneficial effects of the utility model reside in that:
first vibrating diaphragm, second vibrating diaphragm and third vibrating diaphragm link to each other with the voice coil loudspeaker voice coil through first annular skeleton and second annular skeleton, the connecting plate, the limiting plate, second turn-ups and first turn-ups enclose to close and form the glue groove, thereby pack glue in the glue groove and make between connecting plate and the limiting plate, it is fixed to seal glue between second turn-ups and the first turn-ups, make second annular skeleton and first annular skeleton connect more stably, and then promote the second vibrating diaphragm, first vibrating diaphragm, the third vibrating diaphragm, the voice coil loudspeaker voice coil, the whole vibration stability of second annular skeleton and first annular skeleton, the acoustic performance of speaker has been improved.
[ description of the drawings ]
Fig. 1 is a schematic view of the overall structure of the speaker of the present invention;
fig. 2 is a schematic sectional view of the speaker of the present invention in the direction of a-a in fig. 1;
fig. 3 is a schematic perspective exploded view of the speaker of the present invention;
fig. 4 is an assembly diagram of the first annular frame, the second annular frame and the flexible circuit board according to the present invention;
fig. 5 is an enlarged schematic view of detail B in fig. 4.
[ detailed description ] embodiments
The present invention will be further described with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 5, the speaker includes a frame 1 having an accommodating space, a magnetic circuit system 2 accommodated in the accommodating space and having a magnetic gap 100, and a vibration system 3 accommodated in the accommodating space and driven by the magnetic circuit system 2 to vibrate, where the vibration system 3 includes a first diaphragm 34 disposed between the frame 1 and the magnetic circuit system 2, a second diaphragm 33 disposed opposite to the first diaphragm 34 at an interval, a third diaphragm 35 disposed between the first diaphragm 34 and the second diaphragm 33, a voice coil 31 inserted into the magnetic gap 100, a first annular frame 322 disposed between the first diaphragm 34 and the third diaphragm 35, and a second annular frame 321 disposed between the second diaphragm 33 and the third diaphragm 35; the first ring frame 322 is mounted on the second ring frame 321; the second annular bobbin 321 includes a second annular bobbin body 3211 that vibrates in a vibration direction of the voice coil 31 and a connection plate 3212 that is connected between the second annular bobbin body 3211 and the voice coil 31; the first annular bobbin 322 includes a first annular bobbin body 3221 vibrating in the vibration direction of the voice coil 31 and a limit plate 3222 disposed between the first annular bobbin body 3221 and the connection plate 3212; the connecting plate 3212 is fixedly connected to the limiting plate 3222, one side of the connecting plate 3212 extends in a direction close to the first diaphragm 34 to form a first flange 3223, one side of the limiting plate 3222 extends in a direction close to the first diaphragm 34 to form a second flange 3213, one end of the first flange 3223 abuts against one end of the second flange 3213, and the connecting plate 3212, the limiting plate 3222, the first flange 3223, and the second flange 3213 enclose to form the glue groove 200.
First vibrating diaphragm 34, second vibrating diaphragm 33 and third vibrating diaphragm 35 link to each other with voice coil 31 through second annular skeleton 321 and first annular skeleton 322, second annular skeleton main part 3211 of second annular skeleton 321 and first annular skeleton main part 3221 fixed connection of first annular skeleton 322, connecting plate 3212, limiting plate 3222, second turn-ups 3213 and first turn-ups 3223 enclose and close and form glue groove 200, thereby pack glue in glue groove 200 and make between connecting plate 3212 and limiting plate 3222, it is fixed to seal glue between second turn-ups 3213 and the first turn-ups 3223, make second annular skeleton 321 and first annular skeleton 322 connect more stably, and then promote second vibrating diaphragm 33, first vibrating diaphragm 34, third vibrating diaphragm 35, voice coil 31, the whole vibration stability of second annular skeleton 321 and first annular skeleton 322, the sound production performance of speaker has been improved.
The basin frame 1 comprises a support frame 11 connected with a third vibrating diaphragm 35, a bottom cover 12 covering one side of the support frame 11 close to a second vibrating diaphragm 33, and a top cover 13 covering one side of the support frame 11 close to a first vibrating diaphragm 34, wherein the first vibrating diaphragm 34 is arranged between the top cover 13 and the support frame 11, a magnetic circuit system 2 is fixedly connected with the top cover 13, the first vibrating diaphragm 34 and the magnetic circuit system 2 surround to form a first front cavity 600, one side of the top cover 13 is provided with a first sound outlet 121 communicated with the first front cavity 600, the second vibrating diaphragm 33 is arranged between the bottom cover 12 and the support frame 11, the second vibrating diaphragm 33, a framework 32 and the third vibrating diaphragm 35 surround to form a second front cavity 500, one side of the support frame 11 is provided with a second sound outlet 111 communicated with the second front cavity 500, the first annular framework body 3221 is provided with a vent hole 32212, the bottom cover 12, the second vibrating diaphragm 33, a second annular framework body, The third diaphragm 35, the supporting frame 11, the first diaphragm 34 and the magnetic circuit system 2 surround to form a back cavity 700.
The magnetic circuit system 2 includes a second magnetic yoke 21 fixedly connected to the top cover 13, a second magnetic steel group 22 fixedly connected to the second magnetic yoke 21, a first magnetic yoke 24 fixed to the second magnetic steel group 22 and away from the second magnetic yoke 21, and a first magnetic steel group 23 fixed between the second magnetic yoke 21 and the first magnetic yoke 24 and disposed around the second magnetic steel group 22, the magnetic gap 100 is formed by the second magnetic steel group 22 and the first magnetic steel group 23 at intervals, and the voice coil 31 is sleeved outside the second magnetic steel group 22 and accommodated in the magnetic gap 100.
A second connecting edge 3214 is formed by extending the end of the second annular bobbin body 3211 close to the second diaphragm 33 toward the voice coil 31, a second connecting piece 3215 is formed by extending the side of the second connecting edge 3214 close to the voice coil 31 toward the direction close to the first annular bobbin 322, and a connecting plate 3212 is formed by extending the end of the second connecting piece 3215 close to the first annular bobbin 322; the end of the first annular bobbin main body 3221 close to the second annular bobbin 321 extends towards the voice coil 31 to form a first connecting edge 3224, the position-limiting plate 3222 includes a first connecting piece 32221 formed by extending from the side of the first connecting edge 3224 close to the voice coil 31 towards the direction close to the second annular bobbin 321 and a fixing piece 32222 formed by extending from the end of the first connecting piece 32221 close to the second annular bobbin 321 towards the voice coil 31, the second flange 3213 extends from the fixing piece 32222, and the other end of the second flange 3213 abuts against the first connecting piece 32221. Specifically, in this embodiment, the second annular bobbin main body 3211 and the first annular bobbin main body 3221 are annular structures surrounding the voice coil 31, and correspondingly, the second connection edge 3214 and the first connection edge 3224 are also annular structures, so that on one hand, the structural strength of the second annular bobbin 321 and the first annular bobbin 322 can be improved, and on the other hand, the connection area can be increased, so as to improve the connection reliability with the structure of the second connection edge 3214 or the first connection edge 3224, the connection plates 3212 and the limit plates 3222 are both provided with four, the connection plates 3212 and the limit plates 3222 are in one-to-one correspondence, the first magnetic steel set 23 has a gap for the connection plates 3212 to extend into to connect with the voice coil 31, the end of the connection plate 3212 far from the second annular bobbin main body 3211 extends to form a connection leg 32112 fixedly connected with the voice coil 31, the connection leg 32112 is a structure adapted to the voice coil 31, in this embodiment, the connection legs 32112 located at both ends of the voice coil, that is, the connection pins 32112 at the same end of the voice coil 31 in the length direction are connected together, so that the connection between the connection pins 32112 and the voice coil 31 is more stable and reliable, the second flange 3213 includes a base 32131 adjacent to the voice coil 31 and an extension 32132 connected to the base 32131 adjacent to the first flange 3223, and the height of the base 32131 in the vibration direction of the voice coil 31 is greater than the height of the extension 32132 in the vibration direction of the voice coil 31. In some embodiments, the connection plate 3212 and the limiting plate 3222 may be respectively provided with two, three, five, six, etc. groups, as long as the connection between the second ring-shaped bobbin 321 and the voice coil 31 is stable. In some embodiments, the adjacent connection legs 32112 may be integrally connected, so that the connection legs 32112 are combined into an annular structure adapted to the voice coil 31, thereby further improving the connection reliability of the connection legs 32112 and the voice coil 31.
The vibration system 3 further includes a flexible circuit board 36 disposed between the second connection edge 3214 and the second diaphragm 33 and electrically connected to the voice coil 31, the connection plate 3212 is provided with an avoiding hole 32121, and a lead of the voice coil 31 is electrically connected to the flexible circuit board 36 through the avoiding hole 32121. On one hand, when the glue tank 200 is filled with glue, the glue can flow into the first bonding gap 400 from the avoiding hole 32121, and after the glue is cured, the flexible circuit board 36 and the connecting plate 3212 can be bonded stably; on the other hand, the lead of the voice coil 31 is electrically connected with the pad on the flexible circuit board 36 through the avoiding hole 32121, and the second flange 3213 and the first flange 3223 can guide the lead of the voice coil 31, that is, in the vibration process of the voice coil 31, the lead of the voice coil 31 can be effectively protected, and the hidden trouble of wire breakage failure caused by the swinging of the lead of the voice coil 31 in the vibration process is reduced. The other end of the flexible circuit board 36 is fixed between the support bracket 11 and the bottom cover 12.
The end of the second annular bobbin body 3211 close to the first annular bobbin 322 extends in a direction away from the voice coil 31 to form a second extending edge 32111, and one end of the third diaphragm 35 is fixed between the second extending edge 32111 and the first connecting edge 3224. The vibration system 3 further includes a spacer 37 disposed between the second extending edge 32111 and the first connecting edge 3224, and the third diaphragm 35 is sandwiched between the spacer 37 and the first connecting edge 3224.
The first diaphragm 34 includes a first inward-folded ring 341 with one end fixedly connected to the magnetic circuit system 2 and the other end fixed to the first annular frame 322, a first dome 342 with one end fixedly connected to the first inward-folded ring 341, and a first outward-folded ring 343 with one end fixedly connected to the first dome 342 and the other end fixedly connected to the frame 1, the first inward-folded ring 341 being far away from the first dome 342. Specifically, in this embodiment, an end of the first annular bobbin body 3221 far from the second annular bobbin body 3211 extends towards a direction far from the voice coil 31 to form a first extending edge 32211, an end of the first inward-folding ring 341 is fixed between the second magnetic yoke 21 and the first magnetic steel set 23, another end of the first inward-folding ring 341 is fixed to the first extending edge 32211, and an end of the first outward-folding ring 343 is fixed to a covering position of the supporting frame 11 and the top cover 13. In some embodiments, the first diaphragm 34 may also be a sound film and a dome structure as in the second diaphragm 33, and any structure may be used as long as it can achieve a sound effect, and is not limited herein.
The second diaphragm 33 includes a second dome 331 having one end fixedly connected to the second annular frame 321, and a second corrugated rim 332 having one end fixedly connected to the second dome 331 and the other end fixedly connected to the basin stand 1. Specifically, in the present embodiment, the second spherical cap 331 is fixed to the side of the flexible circuit board 36 away from the second annular skeleton body 3211, and the second flange 332 is fixed to the side of the flexible circuit board 36 away from the second spherical cap 331 between the flexible circuit board 36 and the bottom cover 12. In some embodiments, the second diaphragm 33 may not be in the form of a sound film plus a dome, but may also be in the form of two sound films plus a dome, as long as the structure can achieve a sound effect, and the structure is not limited herein.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims (10)

1. A loudspeaker comprises a basin frame with an accommodating space, a magnetic circuit system which is accommodated in the accommodating space and provided with a magnetic gap, and a vibration system which is accommodated in the accommodating space and driven by the magnetic circuit system to vibrate, wherein the vibration system comprises a first vibrating diaphragm arranged between the basin frame and the magnetic circuit system, a second vibrating diaphragm arranged opposite to the first vibrating diaphragm at an interval, a third vibrating diaphragm arranged between the first vibrating diaphragm and the second vibrating diaphragm, a voice coil inserted into the magnetic gap, a first annular framework arranged between the first vibrating diaphragm and the third vibrating diaphragm, and a second annular framework arranged between the second vibrating diaphragm and the third vibrating diaphragm; the first annular framework is erected on the second annular framework; the second annular framework comprises a second annular framework main body which vibrates along the vibration direction of the voice coil and a connecting plate which is connected between the second annular framework main body and the voice coil; the first annular framework comprises a first annular framework main body which vibrates along the vibration direction of the voice coil and a limiting plate arranged between the first annular framework main body and the connecting plate; the connecting plate with limiting plate fixed connection, its characterized in that:
one side of the connecting plate extends towards the direction close to the first vibrating diaphragm to form a first flanging, one side of the limiting plate extends towards the direction close to the first vibrating diaphragm to form a second flanging, one end of the first flanging is abutted against one end of the second flanging, and the connecting plate, the limiting plate, the first flanging and the second flanging are enclosed to form a glue groove.
2. The speaker of claim 1, wherein the first annular bobbin main body extends toward the voice coil near the second annular bobbin to form a first connecting edge, the limiting plate includes a first connecting tab extending from the first connecting edge near the voice coil toward the second annular bobbin and a fixing tab extending from the first connecting tab near the second annular bobbin toward the voice coil, the second flange extends from the fixing tab and the other end of the second flange abuts against the first connecting tab;
the second ring-shaped framework main body is close to the second vibrating diaphragm end and extends towards the voice coil to form a second connecting edge, the second connecting edge is close to the voice coil side and extends towards the direction close to the first ring-shaped framework to form a second connecting sheet, and the connecting sheet is close to the second connecting sheet and extends towards the first ring-shaped framework end to form the second connecting sheet.
3. The loudspeaker of claim 2, wherein the vibration system further comprises a flexible circuit board disposed between the second connecting edge and the second diaphragm and electrically connected to the voice coil, the connecting plate is provided with an avoiding hole, and a lead of the voice coil is electrically connected to the flexible circuit board through the avoiding hole.
4. The loudspeaker of claim 2, wherein the second annular bobbin body extends away from the voice coil to form a second extension rim near the first annular bobbin end, and an end of the third diaphragm is fixed between the second extension rim and the first connection rim.
5. The loudspeaker of claim 4, wherein the vibration system further comprises a spacer disposed between the second extending edge and the first connecting edge, the third diaphragm being sandwiched between the spacer and the first connecting edge.
6. The speaker of claim 1, wherein the second flange includes a base adjacent to the voice coil and an extension piece connected to the base adjacent to the first flange side, and a height of the base in the voice coil vibration direction is greater than a height of the extension piece in the voice coil vibration direction.
7. The speaker of claim 1, wherein the connection plate extends away from the second annular former body end to form a connection leg fixedly connected to the voice coil.
8. The loudspeaker of claim 1, wherein the first diaphragm comprises a first inward-folded ring having one end fixedly connected to the magnetic circuit system and the other end fixed to the first annular frame, a first dome having one end fixedly connected to the first inward-folded ring, and a first outward-folded ring having one end fixedly connected to the first dome far from the first inward-folded ring and the other end fixedly connected to the frame.
9. The loudspeaker of claim 1, wherein the second diaphragm comprises a second dome having one end fixedly connected to the second annular frame and a second corrugated rim having one end fixedly connected to the second dome, the other end fixedly connected to the frame, and the other end fixedly connected to the second annular frame.
10. The loudspeaker of claim 1, wherein the frame comprises a supporting frame connected to the third diaphragm, a bottom cover covering a side of the supporting frame near the second diaphragm, and a top cover covering a side of the supporting frame near the first diaphragm, the first diaphragm is disposed between the top cover and the supporting frame, the magnetic circuit system is fixedly connected to the top cover, the first diaphragm and the magnetic circuit system surround to form a first front cavity, a first sound outlet communicated with the first front cavity is formed in one side of the top cover, the second diaphragm is disposed between the bottom cover and the supporting frame, the second diaphragm, the second annular frame body and the third diaphragm surround to form a second front cavity, a second sound outlet communicated with the second front cavity is formed in one side of the supporting frame, the first annular framework main body is provided with an air vent, and the bottom cover, the second vibrating diaphragm, the second annular framework main body, the third vibrating diaphragm, the support frame, the first vibrating diaphragm and the magnetic circuit system surround to form a rear cavity.
CN202020856702.0U 2020-05-20 2020-05-20 Loudspeaker Expired - Fee Related CN212034341U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202020856702.0U CN212034341U (en) 2020-05-20 2020-05-20 Loudspeaker
PCT/CN2020/093207 WO2021232475A1 (en) 2020-05-20 2020-05-29 Loudspeaker

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Application Number Priority Date Filing Date Title
CN202020856702.0U CN212034341U (en) 2020-05-20 2020-05-20 Loudspeaker

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Publication Number Publication Date
CN212034341U true CN212034341U (en) 2020-11-27

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WO (1) WO2021232475A1 (en)

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WO2022000783A1 (en) * 2020-07-02 2022-01-06 瑞声声学科技(深圳)有限公司 Framework and sound production device
WO2022110472A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
WO2023273751A1 (en) * 2021-06-30 2023-01-05 歌尔股份有限公司 Vibrating diaphragm for sound generating device and sound generating device
WO2024119342A1 (en) * 2022-12-06 2024-06-13 瑞声光电科技(常州)有限公司 Loudspeaker

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WO2020227956A1 (en) * 2019-05-10 2020-11-19 瑞声声学科技(深圳)有限公司 Magnetic circuit system and a loudspeaker using same
CN111131976B (en) * 2020-03-05 2021-02-26 瑞声科技(新加坡)有限公司 Loudspeaker

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WO2022000783A1 (en) * 2020-07-02 2022-01-06 瑞声声学科技(深圳)有限公司 Framework and sound production device
WO2022110472A1 (en) * 2020-11-30 2022-06-02 瑞声声学科技(深圳)有限公司 Sound production device
CN112533109A (en) * 2020-12-18 2021-03-19 瑞声新能源发展(常州)有限公司科教城分公司 Sound production device
WO2023273751A1 (en) * 2021-06-30 2023-01-05 歌尔股份有限公司 Vibrating diaphragm for sound generating device and sound generating device
WO2024119342A1 (en) * 2022-12-06 2024-06-13 瑞声光电科技(常州)有限公司 Loudspeaker

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