CN112584285A - Sound production device - Google Patents
Sound production device Download PDFInfo
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- CN112584285A CN112584285A CN202011374870.7A CN202011374870A CN112584285A CN 112584285 A CN112584285 A CN 112584285A CN 202011374870 A CN202011374870 A CN 202011374870A CN 112584285 A CN112584285 A CN 112584285A
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- frame
- magnetic bowl
- magnetic
- basin frame
- bowl
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- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 230000005389 magnetism Effects 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 8
- 238000003466 welding Methods 0.000 description 7
- 230000004927 fusion Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 101150114468 TUB1 gene Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Classifications
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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
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
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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
- H04R7/16—Mounting or tensioning of diaphragms or cones
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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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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention provides a sounding device, which comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system comprises a vibrating diaphragm and a voice coil, the magnetic circuit system comprises a magnetic bowl and magnetic steel, the basin frame comprises a basin frame top wall and a basin frame bottom wall, the basin frame top wall and the basin frame bottom wall are used for supporting and fixing the vibrating diaphragm, the basin frame bottom wall comprises a basin frame fixing part formed by sinking from the basin frame bottom wall to the direction close to the vibrating diaphragm, and a basin frame positioning part extending from the basin frame bottom wall to the direction close to the magnetic bowl; the magnetic bowl comprises a magnetic bowl body, a magnetic bowl side wall bent and extended from the magnetic bowl body, a magnetic bowl extending part bent and extended from the magnetic bowl side wall and a magnetic bowl fixing part protruding and extending from the magnetic bowl extending part; the magnetic steel is fixed in the magnetic bowl body, the magnetic bowl side wall is fixed in the basin frame, the magnetic bowl extension part is matched with the basin frame positioning part to position the magnetic bowl in the vibration direction perpendicular to the vibration film, and the magnetic bowl fixing part is fixedly connected with the basin frame fixing part. Compared with the prior art, the sounding device has the advantages of simple structure, high strength, easiness in assembly and positioning and high reliability.
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 ]
With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, the functions of mobile phones are very diverse, one of them is a high-quality music function, and therefore, a sound generating device for playing sound is widely applied to the current smart mobile devices.
In the related art, the sound production device comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system is respectively fixed on the basin frame, the magnetic circuit system drives the vibration system to vibrate and produce sound, the magnetic circuit system comprises a magnetic bowl fixed on the basin frame and magnetic steel contained in the magnetic bowl, and the magnetic bowl is glued and fixed with the basin frame.
However, the frame of the sound device of the related art is generally made of plastic, and the strength of the plastic is not so strong as to easily cause the sound device to deform. In addition, because the magnetic bowl is glued and fixed with the basin frame, the magnetic bowl and the basin frame are easy to move when the glue is fixed, the magnetic circuit system is difficult to position, and the reliability of the sounding device is low.
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 which is simple in structure, high in strength, easy to assemble and position and high in reliability.
In order to achieve the above object, the present invention provides a sound generating device, which includes a frame, a vibration system fixed on the frame, and a magnetic circuit system for driving the vibration system to vibrate and generate sound, wherein the vibration system includes a vibration diaphragm fixed on the frame and a voice coil for driving the vibration diaphragm to vibrate, the magnetic circuit system includes a magnetic bowl fixed on the frame and a magnetic steel accommodated in the magnetic bowl, the magnetic bowl includes a magnetic bowl body and a magnetic bowl side wall bent and extended from the periphery of the magnetic bowl body toward the vibration diaphragm direction, the magnetic steel is fixed on the magnetic bowl body and spaced from the magnetic bowl side wall to form a magnetic gap, the magnetic bowl side wall is fixed on the frame, the voice coil is inserted in the magnetic gap, the frame includes a frame top wall for supporting and fixing the vibration diaphragm and a frame bottom wall arranged opposite to the frame top wall, the bottom wall of the basin frame comprises a basin frame fixing part formed by sinking from the bottom wall of the basin frame to the direction close to the vibrating diaphragm and a basin frame positioning part extending from the bottom wall of the basin frame to the direction close to the magnetic bowl; the magnetic bowl also comprises a magnetic bowl extending part which is bent and extends from the side wall of the magnetic bowl to the direction of the basin frame and a magnetic bowl fixing part which is protruded and extends from the magnetic bowl extending part to the direction of the basin frame fixing part; the magnetic bowl extending part is matched with the basin frame positioning part to position the magnetic bowl in the vibration direction perpendicular to the vibrating diaphragm, and the magnetic bowl fixing part is fixedly connected with the basin frame fixing part.
Preferably, the frame is made of metal materials, and the part of one side of the magnetic bowl fixing part, which is far away from the side wall of the magnetic bowl, in contact with the frame fixing part is welded by laser.
Preferably, the two frame fixing parts are respectively positioned at two opposite sides of the long shaft of the frame, the two frame positioning parts are respectively positioned at the same side of the long shaft of the frame as each adjacent frame positioning part; the magnetic bowl is of a rectangular structure, the magnetic bowl fixing portions comprise two magnetic bowl fixing portions, the two magnetic bowl fixing portions are located on two opposite sides of a long axis of the magnetic bowl respectively, and the magnetic bowl fixing portions correspond to the basin stand fixing portions one to one.
Preferably, the vibrating diaphragm includes vibration portion, by the outer peripheral edges of vibration portion buckle the ring portion that extends and by the ring portion that rolls over to the basin frame is buckled the connecting portion that extends, the voice coil loudspeaker voice coil is fixed in vibration portion, connecting portion are fixed in the basin frame roof, ring portion that rolls over is to being close to the sunken arc structure that forms of magnetism bowl direction and with the basin frame fixed part is just to setting up, ring portion that rolls over with the distance of basin frame fixed part is greater than roll over the maximum vibration range of ring portion.
Preferably, the diaphragm further includes an annular reinforcing portion extending from the outer periphery of the connecting portion in a bending manner along the extending direction of the top wall of the basin stand, and the reinforcing portion is fixed to the top wall of the basin stand.
Preferably, the vibration system further comprises two elastic support assemblies and a framework fixed on one side of the vibration part close to the magnetic circuit system, the two elastic support assemblies are respectively located on two opposite sides of the short axis of the magnetic bowl, one end of each elastic support assembly is fixed on the top wall of the basin stand, and the other end of each elastic support assembly is fixed on the framework; the voice coil is connected to the diaphragm through the framework.
Preferably, the skeleton is including being fixed in vibrating portion be annular skeleton body, by the outer peripheral edges of skeleton body to the first skeleton fixed part that the magnetic gap extends and by the inner peripheral edges of skeleton body to the second skeleton fixed part that the voice coil loudspeaker voice coil extends, the elastic support subassembly connect in first skeleton fixed part is kept away from the one end of skeleton body, the voice coil loudspeaker voice coil is connected to second skeleton fixed part.
Compared with the prior art, the sounder provided by the invention has the advantages that the frame structure is divided into the frame top wall and the frame bottom wall which are oppositely arranged, the frame bottom wall is provided with the frame fixing part which is formed by sinking from the frame bottom wall to the direction close to the vibrating diaphragm and the frame positioning part which extends from the frame bottom wall to the direction close to the magnetic bowl, the magnetic bowl is provided with the magnetic bowl extending part which is bent and extended from the side wall of the magnetic bowl to the direction of the frame and the magnetic bowl fixing part which is extended from the magnetic bowl extending part to the direction of the frame fixing part, then the magnetic bowl is positioned in the vibration direction vertical to the vibrating diaphragm by matching the magnetic bowl extending part and the frame positioning part, the magnetic bowl fixing part is fixedly connected with the frame fixing part, and the position of the magnetic bowl fixing part is used as the height positioning surface of the magnetic bowl, the magnetic circuit system and the basin frame are accurately assembled and positioned, and meanwhile, a sufficient vibration space of the vibration system is reserved; meanwhile, the magnetic bowl extension part is matched with the basin frame positioning part, and the magnetic circuit system is positioned along the vibration direction perpendicular to the vibrating diaphragm by the aid of the basin frame positioning part, namely the positioning of two dimensions, namely a long axis and a short axis, of the basin frame is accurate. In addition, the magnetic bowl and the basin frame form fixed connection, so that the structure is simple, the basin frame and the magnetic bowl are not easy to move, the stability of the fixation of the basin frame and the magnetic bowl is effectively guaranteed, and the reliability of the sounding device is 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 a schematic assembled view of the magnetic bowl and the basin stand of the sound device of the present invention;
FIG. 5 is a schematic assembled view of a magnetic bowl and a basin stand of the sound generating device of the present invention in a three-dimensional structure at another angle;
fig. 6 is a schematic perspective view of the frame 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 to 6, the present invention provides a sound-producing device 100, wherein the sound-producing device 100 includes a basin frame 1, a vibration system 2 fixed on the basin frame 1, and a magnetic circuit system 3 for driving the vibration system 2 to vibrate and produce sound. Wherein the vibration system 2 comprises a diaphragm 21 for sound production.
In this embodiment, the frame 1 is made of metal. The metal tub 1 has high hardness and is not easily deformed during use and assembly, thereby improving the reliability of the sound generating device 100.
Specifically, the frame 1 comprises a frame top wall 11 and a frame bottom wall 12 arranged opposite to the frame top wall 11.
The basin stand 1 is in a rectangular structure. The frame top wall 11 is used for fixing the vibration system 2. Specifically, the frame top wall 11 is used for supporting and fixing the diaphragm 21.
The frame bottom wall 12 includes a frame fixing portion 121 formed by sinking from the frame bottom wall 12 toward a direction close to the diaphragm 21, and a frame positioning portion 122 extending from the frame bottom wall 12 toward a direction close to the magnetic bowl 31.
In the present embodiment, the frame fixing part 121 is fixed to the magnetic circuit system 3 by laser welding.
In this embodiment, the frame fixing part 121 includes two parts. The two frame fixing parts 121 are respectively positioned at two opposite sides of the long axis of the frame 1.
The vibration system 2 includes the diaphragm 21, the voice coil 22, the elastic support member 23, and the bobbin 24.
The vibrating diaphragm 21 is fixed on the side of the top wall 11 of the basin stand far away from the magnetic bowl 31.
The vibrating diaphragm 21 includes a vibrating portion 211, a bent portion 212 bent and extended from an outer peripheral edge of the vibrating portion 211, and a connecting portion 213 bent and extended from the bent portion 212 toward the frame 1.
The connecting portion 213 is fixed to the frame top wall 11.
The bending ring part 212 is an arc structure formed by sinking towards the direction close to the magnetic bowl 31 and is arranged opposite to the basin stand fixing part 121. The distance between the folded ring part 212 and the frame fixing part 121 is larger than the maximum vibration amplitude of the folded ring part 212.
In this embodiment, in order to enhance the fixing strength between the diaphragm 21 and the frame top wall 11, the diaphragm 21 further includes an annular reinforcing portion 214 bent and extended from the outer peripheral edge of the connecting portion 213 along the extending direction of the frame top wall 11. The reinforcement 214 is fixed to the frame top wall 11. When the vibrating diaphragm 21 vibrates to produce sound, the structure avoids the vibrating diaphragm 21 and the basin frame top wall 11 from falling off to cause the poor acoustic effect of the sound production device 100, so that the sound production device 100 is high in reliability.
The voice coil 22 is used for driving the diaphragm 21 to vibrate and generate sound. The voice coil 22 is fixed to the vibration portion 211. Specifically, the voice coil 22 is connected to the diaphragm 21 through the bobbin 24.
The elastic supporting component 23 is fixed on the basin stand 1. Specifically, one end of the elastic support component 23 is fixed on the top wall 11 of the basin frame, and the other end thereof is fixed on the framework 24. The elastic supporting component 23 is used for balancing the vibration of the voice coil 22, and the elastic supporting component 23 supports the voice coil 22 more stably and has better vibration reliability.
The bobbin 24 is fixed to the vibrating portion 211 on the side closer to the magnetic circuit system 3. The bobbin 24 includes a bobbin body 241 fixed to the vibrating portion 211 and a bobbin fixing portion 242 extending from an outer peripheral edge of the bobbin body 241 to the voice coil 22 and a second bobbin fixing portion 243 extending from an inner peripheral edge of the bobbin body 241 to the voice coil 22. The elastic supporting member 23 is connected to one end of the first bobbin fixing portion 242 away from the bobbin body 241, and the voice coil 22 is connected to the second bobbin fixing portion 243. This structure makes the voice coil 22 drive the diaphragm 21 to vibrate and generate sound through the framework 24, and simultaneously connects the elastic support component 23 so that the balance and feasibility of vibration are high.
The magnetic circuit system 3 comprises a magnetic bowl 31 and magnetic steel 32 accommodated in the magnetic bowl 31.
The magnetic bowl 31 is fixed on the basin stand 1. Specifically, the magnetic bowl 31 includes a magnetic bowl body 311, a magnetic bowl sidewall 312 extending from the periphery of the magnetic bowl body 311 to the direction of the diaphragm 21 in a bending manner, a magnetic bowl extending portion 313 extending from the magnetic bowl sidewall 312 to the direction of the frame 1 in a bending manner, and a magnetic bowl fixing portion 314 extending from the magnetic bowl extending portion 313 to the direction of the frame fixing portion 121 in a protruding manner.
The magnetic bowl body 311 is used for fixing the magnetic steel 32. The magnetic bowl body 311 and the diaphragm 21 are respectively located on two opposite sides of the sound production device 100.
The magnetic bowl side wall 312 is fixed on the basin stand 1.
The magnetic bowl extension 313 is used for assembling and positioning the magnetic circuit system 3, and simultaneously ensures that a sufficient vibration space of the vibration system 2 is reserved.
In this embodiment, the frame positioning portions 122 include two, and each frame positioning portion 122 and the adjacent frame fixing portion 12 are located on the same side of the long axis of the frame 1. The two frame positioning parts 122 are arranged to facilitate the assembly and positioning of the magnetic circuit system 3 and the frame 1.
In this embodiment, a portion of the magnetic bowl fixing portion 314, which is away from the magnetic bowl side wall 312 and in contact with the frame fixing portion 121, is welded by laser. Through laser welding fixation, on one hand, the basin stand fixing part 121 and the magnetic bowl fixing part 314 can be welded more firmly, and reliability is improved; on the other hand makes laser welding can be through in the outside of basin frame 1 with the outside of magnetism bowl 31 is operated, and laser slant welding easy operation is favorable to the production equipment of sound production device 100 to be favorable to the volume production.
The side of the magnetic bowl fixing part 314 far away from the magnetic bowl side wall 312 and the side of the magnetic bowl fixing part 314 close to the frame fixing part 121 are both provided with a fusion protrusion 4. The fusion protrusion 4 is formed by fusing the metal material of the frame fixing part 121 and the material of the magnetic bowl fixing part 314 by laser welding. The magnetic bowl fixing part 314 and the frame fixing part 121 are welded and fixed through the fusion protrusion 4. The fusion bulge 4 is located at the connection position of the magnetic bowl fixing part 314 and the frame fixing part 121.
In this embodiment, the fusing protrusion 4 includes a plurality of fusing protrusions 4, which are spaced from each other and symmetrically distributed on the magnetic bowl fixing portion 314 and the frame fixing portion 312. The plurality of fusion protrusions 4 are formed by spot welding which is symmetrically distributed, the assembly process is simple due to the structure, the basin frame fixing part 121 and the magnetic bowl fixing part 314 are welded firmly, and the reliability of the sound production device 100 is improved.
In this embodiment, the fusing protrusion 4 includes a first fusing protrusion 41 located on the frame fixing portion 121 and a second fusing protrusion 42 located on the magnetic bowl extending portion 313. The first fusing protrusion 41 and the second fusing protrusion 42 are connected to form an integral structure. This structure on the one hand make full use of laser slant welding simple operation is favorable to the production equipment of sound production device 100 to be favorable to the volume production, on the other hand, can make basin frame fixed part 121 with magnetism bowl fixed part 314 welds more firmly, has improved the reliability.
The magnetic steel 32 is fixed on the magnetic bowl body 311 and is arranged at an interval with the magnetic bowl side wall 312 to form a magnetic gap 30. The voice coil 22 is inserted into the magnetic gap 30. The first bobbin fixing portion 242 extends from an outer peripheral edge of the bobbin body 241 to the magnetic gap 30.
In this embodiment, the magnetic bowl 31 has a rectangular structure. The magnetic bowl fixing portions 314 include two magnetic bowl fixing portions 314, and the two magnetic bowl fixing portions 314 are respectively located on two opposite sides of a long axis of the magnetic bowl 31. The magnetic bowl fixing parts 314 which are symmetrically arranged enable the basin frame 1 and the magnetic bowl 31 to be combined more firmly, reliability of the sounding device 100 is improved, meanwhile, assembly and positioning of the magnetic circuit system 3 and the basin frame 1 are enabled to be more accurate, and reliability of the folded ring part 312 under the condition of maximum vibration is guaranteed. Preferably, the magnetic bowl fixing parts 314 correspond to the frame fixing parts 121 one to one. The symmetrically arranged frame fixing parts 121 enable the frame fixing parts 121 and the magnetic bowl fixing parts 314 to be welded and combined more firmly, and the reliability of the sound production device 100 is improved.
The two elastic support assemblies 23 are respectively located at two opposite sides of a short axis of the magnetic bowl 31, and the two elastic support assemblies 23 which are symmetrically distributed support the voice coil 22 more stably, so that the vibration reliability is better.
Compared with the prior art, the sounder provided by the invention has the advantages that the frame structure is divided into the frame top wall and the frame bottom wall which are oppositely arranged, the frame bottom wall is provided with the frame fixing part which is formed by sinking from the frame bottom wall to the direction close to the vibrating diaphragm and the frame positioning part which extends from the frame bottom wall to the direction close to the magnetic bowl, the magnetic bowl is provided with the magnetic bowl extending part which is bent and extended from the side wall of the magnetic bowl to the direction of the frame and the magnetic bowl fixing part which is extended from the magnetic bowl extending part to the direction of the frame fixing part, then the magnetic bowl is positioned in the vibration direction vertical to the vibrating diaphragm by matching the magnetic bowl extending part and the frame positioning part, the magnetic bowl fixing part is fixedly connected with the frame fixing part, and the position of the magnetic bowl fixing part is used as the height positioning surface of the magnetic bowl, the magnetic circuit system and the basin frame are accurately assembled and positioned, and meanwhile, a sufficient vibration space of the vibration system is reserved; meanwhile, the magnetic bowl extension part is matched with the basin frame positioning part, and the magnetic circuit system is positioned along the vibration direction perpendicular to the vibrating diaphragm by the aid of the basin frame positioning part, namely the positioning of two dimensions, namely a long axis and a short axis, of the basin frame is accurate. In addition, the magnetic bowl and the basin frame form fixed connection, so that the structure is simple, the basin frame and the magnetic bowl are not easy to move, the stability of the fixation of the basin frame and the magnetic bowl is effectively guaranteed, and the reliability of the sounding device is improved.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a sounder spare, it includes the basin frame, is fixed in the vibration system and the drive of basin frame the magnetic circuit of vibration system vibration sound production, vibration system is including being fixed in the vibrating diaphragm and the drive of basin frame the voice coil loudspeaker voice coil of vibrating diaphragm vibration, magnetic circuit is including being fixed in the magnetism bowl of basin frame with accept in magnet steel in the magnetism bowl, the magnetism bowl include magnetism bowl body and by the periphery of magnetism bowl body to the magnetism bowl lateral wall that the vibrating diaphragm direction is buckled and is extended, the magnet steel is fixed in magnetism bowl body and with magnetism bowl lateral wall interval sets up and forms the magnetism clearance, magnetism bowl lateral wall is fixed in the basin frame, the voice coil loudspeaker voice coil is inserted and is located the magnetism clearance, a serial communication port, the basin frame is including being used for supporting fixedly the basin frame roof of vibrating diaphragm and with the relative basin frame diapire that sets up of basin frame roof, the basin frame diapire includes certainly the basin frame diapire is to being close to the sunken basin frame fixed part that forms of direction The bottom wall of the basin stand is close to the basin stand positioning part extending from the magnetic bowl; the magnetic bowl also comprises a magnetic bowl extending part which is bent and extends from the side wall of the magnetic bowl to the direction of the basin frame and a magnetic bowl fixing part which is protruded and extends from the magnetic bowl extending part to the direction of the basin frame fixing part; the magnetic bowl extending part is matched with the basin frame positioning part to position the magnetic bowl in the vibration direction perpendicular to the vibrating diaphragm, and the magnetic bowl fixing part is fixedly connected with the basin frame fixing part.
2. The sound production device as claimed in claim 1, wherein the frame is made of a metal material, and a portion of the side of the magnetic bowl fixing part away from the side wall of the magnetic bowl, which is in contact with the frame fixing part, is welded by laser.
3. The sounder device according to claim 1, wherein the frame fixing portions comprise two, the two frame fixing portions are located on opposite sides of the long axis of the frame, the frame positioning portions comprise two, and each frame positioning portion and an adjacent one of the frame fixing portions are located on the same side of the long axis of the frame; the magnetic bowl is of a rectangular structure, the magnetic bowl fixing portions comprise two magnetic bowl fixing portions, the two magnetic bowl fixing portions are located on two opposite sides of a long axis of the magnetic bowl respectively, and the magnetic bowl fixing portions correspond to the basin stand fixing portions one to one.
4. The sounding device according to claim 3, wherein the diaphragm includes a vibrating portion, a folded ring portion extending from the outer periphery of the vibrating portion in a bent manner, and a connecting portion extending from the folded ring portion to the frame in a bent manner, the voice coil is fixed to the vibrating portion, the connecting portion is fixed to the top wall of the frame, the folded ring portion is of an arc-shaped structure formed by being recessed towards the direction of the magnetic bowl and is arranged opposite to the frame fixing portion, and the distance between the folded ring portion and the frame fixing portion is greater than the maximum vibration amplitude of the folded ring portion.
5. The sounding device according to claim 4, wherein the diaphragm further comprises an annular reinforcing portion extending from an outer periphery of the connecting portion along a direction in which the top wall of the basin frame extends, and the reinforcing portion is fixed to the top wall of the basin frame.
6. The sounding device according to claim 5, wherein the vibration system further comprises two elastic support assemblies and a skeleton fixed to one side of the vibration portion close to the magnetic circuit system, the two elastic support assemblies are respectively located on two opposite sides of the short axis of the magnetic bowl, one end of each elastic support assembly is fixed to the top wall of the basin frame, and the other end of each elastic support assembly is fixed to the skeleton; the voice coil is connected to the diaphragm through the framework.
7. The sounding device according to claim 6, wherein the bobbin comprises a ring-shaped bobbin body fixed to the vibrating portion, a first bobbin fixing portion extending from an outer periphery of the bobbin body to the magnetic gap, and a second bobbin fixing portion extending from an inner periphery of the bobbin body to the voice coil, the elastic support assembly is connected to an end of the first bobbin fixing portion away from the bobbin body, and the voice coil is connected to the second bobbin fixing portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011374870.7A CN112584285A (en) | 2020-11-30 | 2020-11-30 | Sound production device |
| PCT/CN2020/142284 WO2022110505A1 (en) | 2020-11-30 | 2020-12-31 | Sound generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011374870.7A CN112584285A (en) | 2020-11-30 | 2020-11-30 | Sound production device |
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| Publication Number | Publication Date |
|---|---|
| CN112584285A true CN112584285A (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011374870.7A Pending CN112584285A (en) | 2020-11-30 | 2020-11-30 | Sound production device |
Country Status (2)
| Country | Link |
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| CN (1) | CN112584285A (en) |
| WO (1) | WO2022110505A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218998271U (en) * | 2022-10-28 | 2023-05-09 | 瑞声光电科技(常州)有限公司 | Multifunctional sounding device |
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- 2020-11-30 CN CN202011374870.7A patent/CN112584285A/en active Pending
- 2020-12-31 WO PCT/CN2020/142284 patent/WO2022110505A1/en active Application Filing
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| WO2022110505A1 (en) | 2022-06-02 |
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