CN111641904B - Sound production device - Google Patents
Sound production device Download PDFInfo
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- CN111641904B CN111641904B CN202010464985.9A CN202010464985A CN111641904B CN 111641904 B CN111641904 B CN 111641904B CN 202010464985 A CN202010464985 A CN 202010464985A CN 111641904 B CN111641904 B CN 111641904B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 80
- 239000004033 plastic Substances 0.000 claims abstract description 80
- 229910052751 metal Inorganic materials 0.000 claims abstract description 45
- 239000002184 metal Substances 0.000 claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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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
The invention provides a sounding device, which comprises a basin frame, a vibration system supported on the basin frame and a magnetic circuit system with a magnetic gap, wherein the vibration system comprises: the vibrating diaphragm is fixed on the basin frame; the voice coil is inserted in the magnetic gap and used for driving the vibrating diaphragm to vibrate and sound; the framework component comprises a metal framework and a first plastic connecting part, and the first plastic connecting part is fixedly connected with one end, close to the vibrating diaphragm, of the metal framework; the metal framework comprises an annular framework body and at least two framework supporting parts which are bent inwards from the framework body and extend to the magnetic gap; first plastics connecting portion are located between skeleton body and the vibrating diaphragm to with skeleton body connection to vibrating diaphragm, the skeleton supporting part is connected with the voice coil loudspeaker voice coil and suspends the voice coil loudspeaker voice coil in the magnetic gap. Compared with the related art, the sound production device has better reliability and better acoustic performance.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of electroacoustic conversion, in particular to a sounding device applied to an electronic sound box product.
[ background of the invention ]
And the sound generating device is used for converting the audio signal into sound to be played in the mobile terminal.
The sound production device in the related art comprises a basin frame, a vibration system fixed on the basin frame and a magnetic circuit system with a magnetic gap, wherein the magnetic circuit system drives the vibration system to vibrate and produce sound; the resilient support assembly connects the skeleton to the basin frame to provide lateral support against rocking.
However, in the sound production device of the related art, the skeleton is integrally formed by metal stamping, for example, an aluminum alloy material is usually used for stamping, the skeleton is used as a supporting structure, and the vibrating diaphragm and the voice coil are connected, during assembly, the vibrating diaphragm is limited by the elongation of metal, and the flatness of the gluing of the vibrating diaphragm and the skeleton is poor, and meanwhile, the vibrating diaphragm and the skeleton have a large forming fillet, so that the connecting strength of the vibrating diaphragm and the skeleton is poor, and the reliability and the acoustic performance of the sound production device are affected.
Therefore, there is a need to provide a new sound generation device to solve the above technical problems.
[ summary of the invention ]
The invention aims to provide a sound production device with good reliability and excellent acoustic performance.
In order to achieve the above object, the present invention provides a sound-producing device, including a frame, a vibration system supported on the frame, and a magnetic circuit system for driving the vibration system to vibrate and produce sound, wherein the magnetic circuit system has a magnetic gap, and the vibration system includes:
the vibrating diaphragm is fixed on the basin frame;
the voice coil is inserted into the magnetic gap and used for driving the vibrating diaphragm to vibrate and sound; and the number of the first and second groups,
the framework component comprises a metal framework and a first plastic connecting part, and the first plastic connecting part is fixedly connected with one end, close to the vibrating diaphragm, of the metal framework; the metal framework comprises an annular framework body and at least two framework supporting parts which are bent inwards from the framework body and extend to the magnetic gap; the first plastic connecting portion is located the skeleton body with between the vibrating diaphragm, and will the skeleton body is connected to the vibrating diaphragm, the skeleton supporting portion with the voice coil loudspeaker voice coil is connected and will the voice coil loudspeaker voice coil is suspended in the magnetic gap.
Preferably, the bobbin supporting part is connected to one end of the voice coil, which is far away from the diaphragm.
Preferably, the vibration system further comprises an elastic support component which is fixed on the basin frame and opposite to the vibrating diaphragm and arranged at an interval, the framework component further comprises a second plastic connecting part which is connected with the metal framework and is far away from one end of the vibrating diaphragm, the second plastic connecting part is made of plastic materials, and the second plastic connecting part is connected with the elastic support component.
Preferably, the metal framework further comprises a first reinforcing part and a second reinforcing part, wherein the first reinforcing part is close to the framework body, one end of the vibrating diaphragm is bent outwards and extends, the second reinforcing part is far away from the framework body, one end of the vibrating diaphragm is bent inwards and extends, at least part of the first reinforcing part is embedded in the first plastic connecting part, and at least part of the second reinforcing part is embedded in the second plastic connecting part.
Preferably, the metal framework is respectively integrated with the first plastic connecting part and the second plastic connecting part in an injection molding manner.
Preferably, the second reinforcing part is provided with a plurality of reinforcing holes penetrating through the second reinforcing part, and the second plastic connecting part is partially filled in the reinforcing holes.
Preferably, the bobbin support portion includes a receiving case having a receiving space extending from the second reinforcing portion toward the voice coil, and a support arm extending from the receiving case to a side close to the voice coil, and the voice coil is supported by the support arm; the elastic support component comprises an elastic piece, the elastic piece comprises a first arm fixed on the basin frame, a second arm fixedly connected with the second plastic connecting portion, and a third arm connected with the first arm, the elastic arm of the second arm and the third arm extending towards the voice coil direction from the second arm, and the third arm is contained in the containing space.
Preferably, the elastic component is the flexible line way board, and is the same the skeleton supporting part is including setting up in pairs the support arm, and should set up in pairs the support arm interval set up in order to form with the groove of stepping down of accommodating space intercommunication, the lead wire warp of voice coil loudspeaker voice coil the groove of stepping down extend to in the accommodating space and with the third arm electricity is connected.
Preferably, the elastic support assembly further includes an auxiliary diaphragm located on a side of the elastic member away from the diaphragm, one side of the auxiliary diaphragm is fixed to the first arm, and the other side of the auxiliary diaphragm is fixed to the second arm.
Preferably, magnetic circuit is including being fixed in the yoke of basin frame, being fixed in respectively the main magnet steel unit and the vice magnet steel unit and the lid of yoke are located main magnet steel unit and butt support in the magnetism bowl of vice magnet steel unit, vice magnet steel unit encircles main magnet steel unit interval sets up and forms the magnetic gap, vice magnet steel unit is equipped with the mouth of stepping down that runs through above that, the skeleton supporting part warp the mouth of stepping down extends to in the magnetic gap.
Preferably, the diaphragm includes a first fixing portion fixed to the secondary magnetic steel unit in an annular shape, a second fixing portion fixed to the frame in an annular shape, a first annular folding portion located between the first fixing portion and the second fixing portion in an annular shape, second annular folding portions surrounding the first annular folding portion and spaced from each other, and an annular vibration portion located between the first annular folding portion and the second annular folding portion; the inner side of the vibration part is connected with the first flange part, the outer side of the vibration part is connected with the second flange part, one side of the first flange part, which is far away from the second flange part, is connected with the first fixing part, and one side of the second flange part, which is far away from the first flange part, is connected with the second fixing part;
the magnetic bowl penetrates through the first fixing part and is exposed out of the vibrating diaphragm, the magnetic bowl is pressed on one side, away from the auxiliary magnetic steel unit, of the first fixing part to form sealing fixation, and the first plastic connecting part is connected with the vibrating part.
Compared with the prior art, in the sound production device, the framework component comprises the metal framework and the first plastic connecting part, and the first plastic connecting part is fixedly connected with one end, close to the vibrating diaphragm, of the metal framework; the first plastic connecting part is positioned between the framework body and the vibrating diaphragm, connects the metal framework to the vibrating diaphragm, is connected with the voice coil through the framework supporting part of the metal framework and suspends the voice coil in the magnetic gap; the metal framework and the vibrating diaphragm are fixedly connected through the first plastic connecting part, the first plastic connecting part is made of plastic materials, the plasticity is strong, the flatness of the connecting surface of the vibrating diaphragm and the first plastic connecting part can be effectively guaranteed, the connecting reliability is improved, the first plastic connecting part made of the plastic materials serves as a part of the metal framework made of the metal materials, the overall quality of the framework component can be effectively reduced, the vibration effect is improved, and the acoustic performance of the sound production device is further improved; in addition, in the sound production device, the second plastic connecting part made of plastic materials is arranged in the same way, and the metal framework is connected with the elastic support assembly through the second plastic connecting part, so that the acoustic performance of the sound production device is further improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic perspective view of a sound device according to the present invention;
FIG. 2 is an exploded perspective view of a sound device according to the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 1;
FIG. 4 is an enlarged view of the portion B of FIG. 3;
FIG. 5 is an exploded view of a portion of the skeletal assembly of the sound device of the present invention;
fig. 6 is a schematic structural view of the assembly of the skeleton assembly and the elastic member of the sound production device of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a sound production device 100, which includes a frame 1, a vibration system 2, and a magnetic circuit system 3 having a magnetic gap 30. The vibration system 2 and the magnetic circuit system 3 are respectively supported on the basin frame 1, and the magnetic circuit system 3 drives the vibration system 2 to vibrate and sound.
The vibration system 2 includes: a diaphragm 21, a bobbin assembly 22, a voice coil 23, and a resilient support assembly 24.
The vibrating diaphragm 21 is fixed on the basin frame 1 and used for vibrating and sounding.
The voice coil 23 is inserted in the magnetic gap 30 to drive the diaphragm 21 to vibrate and generate sound.
The frame assembly 22 includes a metal frame 221 and a first plastic connecting portion 222, for example, the metal frame 221 is made of aluminum alloy material.
The first plastic connecting portion 222 is fixedly connected to one end of the metal framework 221 close to the diaphragm 21. Because of first plastic connecting portion 222 is made for plastic materials, and the plasticity is strong, it can be effectual guarantee the vibrating diaphragm 21 with the roughness of the connection face of first plastic connecting portion 222 increases the connection reliability, and plastic materials's first plastic connecting portion 222 acts as a part of metal material's metal skeleton 221 moreover, still can effectively reduce skeleton subassembly overall quality to vibration effect has been increased, the acoustic performance of sound production device 100 has further been improved. In addition, when the first plastic connecting portion 222 is made of a plastic material, a molding fillet can be more easily realized, and the molding difficulty is reduced.
In this embodiment, specifically, the metal bobbin 221 includes a ring-shaped bobbin body 2211 and at least two bobbin supports 2212 bent inward from the bobbin body 2211 and extending to the magnetic gap 30. The first plastic connecting portion 222 is located between the bobbin body 2211 and the diaphragm 21, and connects the bobbin body 2211 to the diaphragm 21, and the bobbin supporting portion 2212 is connected to the voice coil 23 and suspends the voice coil 23 in the magnetic gap 30.
In this embodiment, the bobbin support 2212 is connected to one end of the voice coil 23 far from the diaphragm 21. The structure can relieve the space limitation between the voice coil 23 and the diaphragm 21 and further utilize the degree of freedom of structural design.
And the bobbin support 2212 includes at least two supporting balancies that can be better to the voice coil 23, and more preferably two bobbin support 2212 are just to setting up to improve the vibration stability.
In this embodiment, specifically, the bobbin support 2212 includes a housing 22121 having a housing space 20 extending from the bobbin 2211 in the direction of the voice coil 23, and a support arm 22122 extending from the housing 22121 in a protruding manner on a side close to the voice coil 23, and the voice coil 23 is supported by the support arm 22122.
In order to further improve the vibration stability of the voice coil 23, the occurrence of lateral vibration when the voice coil 23 vibrates is prevented. In this embodiment, the vibration system 2 further includes the elastic support component 24 fixed to the frame 1 and opposite to the diaphragm 21, and the elastic support component 24 is connected to the metal framework 221.
In order to achieve the flatness of the connection surface between the elastic supporting component 24 and the metal framework 221 so as to improve the connection reliability, in this embodiment, the framework component 22 further includes a second plastic connection portion 223 connected to one end of the metal framework 221 far from the vibrating diaphragm 21. The second plastic connecting portion 223 is made of a plastic material, and the second plastic connecting portion 223 is connected with the elastic support member 24. Similarly to the arrangement of the first plastic connecting portion 222, the metal framework 221 is connected to the elastic support assembly 24 through the second plastic connecting portion 223, which also further improves the acoustic performance of the sound generating device 100.
Further, the metal bobbin 221 further includes a first reinforcing portion 2213 extending from one end of the bobbin body 2211 close to the diaphragm 21 and bending outwards, and a second reinforcing portion 2214 extending from one end of the bobbin body 2211 far from the diaphragm 21 and bending inwards, and the accommodating shell 22121 is formed by the second reinforcing portion 2214 extending towards the voice coil 23. The first reinforcement portion 2213 is at least partially embedded in the first plastic connecting portion 222, and the second reinforcement portion 2214 is at least partially embedded in the second plastic connecting portion 223. Due to the arrangement, the metal framework 221 is connected with the first plastic connecting part 222 and the second plastic connecting part 223 more tightly, and the reliability is better.
In this embodiment, the metal frame 221 is integrally injection-molded with the first plastic connecting portion 222 and the second plastic connecting portion 223, so that the number of workpieces is reduced, and the assembly efficiency is improved.
Since the second plastic connecting portion 223 needs to be connected to the elastic supporting member 24, and the elastic supporting member 24 provides synchronous vibration assistance at this position, the joint between the two is easily loosened, which causes poor vibration, therefore, the second reinforcing portion 2214 is provided with a plurality of reinforcing holes 2215 penetrating through the second plastic connecting portion 2214, and when the second plastic connecting portion 223 wraps and connects the second reinforcing portion 2214, part of the second plastic connecting portion is filled in the reinforcing holes 2215, so as to form a limiting and reinforcing effect.
The elastic support assembly 24 includes an elastic member 241, and the elastic member 241 includes a first arm 2411 fixed to the basin stand 1, a second arm 2412 fixedly connected to the second plastic connecting portion 223, and a resilient arm 2413 connecting the first arm 2411 and the second arm 2412.
The first arm 2411, the second arm 2412 and the elastic arm 2413 jointly support the metal framework 221, and support the voice coil 23 through the metal framework 221, so that on one hand, the vibration performance of the diaphragm 21 is effectively improved, on the other hand, the voice coil 23 is prevented from transversely swinging in the vibration process, and the stability is improved.
In this embodiment, the elastic member 241 is a flexible circuit board, which not only realizes the above functions of the elastic member 241, but also can be used to electrically connect with the voice coil 23, so as to introduce an external electrical signal into the voice coil 23, prevent the voice coil 23 from breaking due to a too long lead, and improve reliability.
Specifically, it is preferable that the elastic member 241 further includes a third arm 2414 extending from the second arm 2412 in the direction of the voice coil 23, and the third arm 2414 is accommodated in the accommodating space 20 of the accommodating case 22121 of the bobbin support 2212. It is same skeleton supporting part 2212 includes the setting in pairs the support arm 22122, and this sets up in pairs the support arm 22122 interval sets up in order to form with the groove 201 of stepping down of accommodating space 20 intercommunication, the lead wire 231 of voice coil 23 warp the groove 201 of stepping down extend to in the accommodating space 20 and with the third arm 2414 electricity is connected.
The elastic support assembly 24 further includes an auxiliary diaphragm 242 located on a side of the elastic member 241 away from the diaphragm 21, wherein one side of the auxiliary diaphragm 241 is fixed to the first arm 2411, and the other side is fixed to the second arm 2412. The auxiliary diaphragm 241 further improves the vibration performance and vibration stability of the diaphragm 21.
In the present embodiment, in order to increase the volume of the magnetic circuit system 3 and increase the driving force, the magnetic circuit system 3 is configured to be exposed to the diaphragm 21.
Specifically, the magnetic circuit system 3 includes a magnetic yoke 31 fixed to the frame 1, a main magnetic steel unit 32 and an auxiliary magnetic steel unit 33 fixed to the magnetic yoke 31, respectively, and a magnetic bowl 34 covering the main magnetic steel unit 32 and supported by the auxiliary magnetic steel unit 33 in an abutting manner. The auxiliary magnetic steel units 33 are arranged around the main magnetic steel unit 32 at intervals to form the magnetic gap 30, the auxiliary magnetic steel units 33 are provided with the position-giving openings 331 penetrating through the auxiliary magnetic steel units 33, and the framework support portion 2212 extends into the magnetic gap 30 through the position-giving openings 331.
The vibrating diaphragm 21 is including being cyclic annular and being fixed in the first fixed part 211 of vice magnet steel unit 33, being cyclic annular and being fixed in the second fixed part 212 of basin frame 1, being located first fixed part 211 with just be annular first dog-ear portion 213 between the second fixed part 212, encircle first dog-ear portion 213 and the second of mutual interval dog-ear portion 214 and be located first dog-ear portion 213 with the second dog-ear portion 214 between be annular vibration portion 215.
The first folded ring part 213 and the second folded ring part 214 are used for providing elastic support and amplitude for the vibration part 215 when vibrating.
The vibration portion 215 radiates sound waves to generate sound when vibrating. In the present embodiment, the first plastic connecting portion 222 is connected to the vibrating portion 215.
The inner side of the vibration part 215 is connected with the first flange part 213, the outer side of the vibration part 215 is connected with the second flange part 214, one side of the first flange part 213, which is far away from the second flange part 214, is connected with the first fixing part 211, and one side of the second flange part 214, which is far away from the first flange part 213, is connected with the second fixing part 212.
The magnetic bowl 34 penetrates through the first fixing portion 211, is exposed out of the diaphragm 21, and is pressed on one side of the first fixing portion 211, which is far away from the auxiliary magnetic steel unit 33, to form sealing fixation.
Compared with the prior art, the sounding device comprises a metal framework and a first plastic connecting part, wherein the first plastic connecting part is fixedly connected with one end, close to the vibrating diaphragm, of the metal framework; the first plastic connecting part is positioned between the framework body and the vibrating diaphragm, connects the metal framework to the vibrating diaphragm, is connected with the voice coil through the framework supporting part of the metal framework and suspends the voice coil in the magnetic gap; the metal framework and the vibrating diaphragm are fixedly connected through the first plastic connecting part, the first plastic connecting part is made of plastic materials, the plasticity is strong, the flatness of the connecting surface of the vibrating diaphragm and the first plastic connecting part can be effectively guaranteed, the connecting reliability is improved, the first plastic connecting part made of the plastic materials serves as a part of the metal framework made of the metal materials, the overall quality of the framework component can be effectively reduced, the vibration effect is improved, and the acoustic performance of the sound production device is further improved; in addition, in the sound production device, the second plastic connecting part made of plastic materials is arranged in the same way, and the metal framework is connected with the elastic support assembly through the second plastic connecting part, so that the acoustic performance of the sound production device is further improved.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (8)
1. A sounder which comprises a frame, a vibration system supported on the frame, and a magnetic circuit system for driving the vibration system to vibrate and sound, wherein the magnetic circuit system has a magnetic gap, the vibration system comprises:
the vibrating diaphragm is fixed on the basin frame;
the voice coil is inserted into the magnetic gap and used for driving the vibrating diaphragm to vibrate and sound;
the framework component comprises a metal framework, a first plastic connecting part and a second plastic connecting part, the first plastic connecting part is fixedly connected with one end, close to the vibrating diaphragm, of the metal framework, and the second plastic connecting part is connected to one end, far away from the vibrating diaphragm, of the metal framework; the metal framework comprises an annular framework body and at least two framework supporting parts which are bent inwards from the framework body and extend to the magnetic gap; the first plastic connecting part is positioned between the framework body and the vibrating diaphragm and connects the framework body to the vibrating diaphragm, and the framework supporting part is connected with the voice coil and suspends the voice coil in the magnetic gap; and the number of the first and second groups,
the elastic supporting component is fixed on the basin frame, is opposite to the vibrating diaphragm and is arranged at intervals; the second plastic connecting part is connected with the elastic supporting component;
the metal framework further comprises a second reinforcing part which is bent inwards and extends from one end, far away from the vibrating diaphragm, of the framework body, and at least part of the second reinforcing part is embedded in the second plastic connecting part;
the framework supporting part comprises a containing shell which is provided with a containing space and extends towards the voice coil direction from the second reinforcing part, and a supporting arm which is extended from one side of the containing shell close to the voice coil in a protruding mode, and the voice coil is supported on the supporting arm; the elastic support component comprises an elastic piece, the elastic piece comprises a first arm fixed on the basin frame, a second arm fixedly connected with the second plastic connecting portion, and a third arm connected with the first arm, the elastic arm of the second arm and the third arm extending towards the voice coil direction from the second arm, and the third arm is contained in the containing space.
2. The sounding device according to claim 1, wherein the bobbin support portion is connected to an end of the voice coil remote from the diaphragm.
3. The sound production device of claim 1, wherein the metal skeleton is injection molded integrally with the first and second plastic connecting portions, respectively.
4. The sounder device according to claim 1, wherein the second reinforcement portion has a plurality of reinforcement holes extending therethrough, the second plastic connector portion partially filling the reinforcement holes.
5. The sounding device according to claim 1, wherein the elastic member is a flexible printed circuit board, the same bobbin support portion includes paired support arms, the paired support arms are spaced apart from each other to form a recess communicating with the receiving space, and a lead of the voice coil extends into the receiving space through the recess and is electrically connected to the third arm.
6. The sounder device according to claim 1, wherein the resilient support assembly further comprises an auxiliary diaphragm located on a side of the resilient member remote from the diaphragm, one side of the auxiliary diaphragm being secured to the first arm and the other side being secured to the second arm.
7. The sounding device according to claim 1, wherein the magnetic circuit system comprises a magnetic yoke fixed to the basin frame, a main magnetic steel unit and an auxiliary magnetic steel unit respectively fixed to the magnetic yoke, and a magnetic bowl covered on the main magnetic steel unit and supported by the auxiliary magnetic steel unit in an abutting manner, the auxiliary magnetic steel unit is spaced around the main magnetic steel unit and forms the magnetic gap, the auxiliary magnetic steel unit is provided with a relief opening penetrating through the auxiliary magnetic steel unit, and the framework supporting portion extends into the magnetic gap through the relief opening.
8. The sound production device according to claim 7, wherein the diaphragm comprises a first fixing portion which is annular and fixed on the secondary magnetic steel unit, a second fixing portion which is annular and fixed on the basin frame, a first annular folding portion which is located between the first fixing portion and the second fixing portion and is annular, a second annular folding portion which surrounds the first annular folding portion and is spaced from the first annular folding portion, and an annular vibration portion which is located between the first annular folding portion and the second annular folding portion; the inner side of the vibration part is connected with the first flange part, the outer side of the vibration part is connected with the second flange part, one side of the first flange part, which is far away from the second flange part, is connected with the first fixing part, and one side of the second flange part, which is far away from the first flange part, is connected with the second fixing part;
the magnetic bowl penetrates through the first fixing part and is exposed out of the vibrating diaphragm, the magnetic bowl is pressed on one side, away from the auxiliary magnetic steel unit, of the first fixing part to form sealing fixation, and the first plastic connecting part is connected with the vibrating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010464985.9A CN111641904B (en) | 2020-05-28 | 2020-05-28 | Sound production device |
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| CN202010464985.9A CN111641904B (en) | 2020-05-28 | 2020-05-28 | Sound production device |
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| CN111641904A CN111641904A (en) | 2020-09-08 |
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| CN112261542A (en) * | 2020-09-27 | 2021-01-22 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| CN112261555B (en) * | 2020-09-30 | 2022-05-03 | 瑞声新能源发展(常州)有限公司科教城分公司 | sound device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201947436U (en) * | 2011-01-05 | 2011-08-24 | 瑞声光电科技(常州)有限公司 | Sounder |
| CN110996226A (en) * | 2019-11-21 | 2020-04-10 | 瑞声科技(新加坡)有限公司 | Sound production device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20060046263A (en) * | 2004-08-04 | 2006-05-17 | 도쿄파츠고교 가부시키가이샤 | Electroacoustic transducer with flat vibration motor |
| CN201114754Y (en) * | 2007-07-20 | 2008-09-10 | 海特音响股份有限公司 | Horn elastic wave fixing structure |
| CN203590452U (en) * | 2013-12-14 | 2014-05-07 | 惠州超声音响有限公司 | Ultrathin loudspeaker |
| CN205283802U (en) * | 2015-12-29 | 2016-06-01 | 歌尔声学股份有限公司 | Speaker and electronic equipment |
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| CN201947436U (en) * | 2011-01-05 | 2011-08-24 | 瑞声光电科技(常州)有限公司 | Sounder |
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