CN117915249A - Sounding device - Google Patents
Sounding device Download PDFInfo
- Publication number
- CN117915249A CN117915249A CN202410320282.7A CN202410320282A CN117915249A CN 117915249 A CN117915249 A CN 117915249A CN 202410320282 A CN202410320282 A CN 202410320282A CN 117915249 A CN117915249 A CN 117915249A
- Authority
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- China
- Prior art keywords
- fixed
- magnetic steel
- basin frame
- clamping plate
- magnetic
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 110
- 239000010959 steel Substances 0.000 claims abstract description 110
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 230000005415 magnetization Effects 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 6
- 239000003292 glue Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- 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
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Landscapes
- 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 sound generating device which comprises a first basin frame, a first vibration system, a second basin frame, a second vibration system and a magnetic circuit system, wherein the first vibration system and the second basin frame are fixed on the first basin frame; the magnetic circuit system comprises a lower clamping plate fixed on the first basin frame, a main magnetic steel overlapped and fixed on the lower clamping plate, an auxiliary magnetic steel overlapped and fixed on the lower clamping plate, an upper clamping plate overlapped and fixed on the auxiliary magnetic steel, a main pole core overlapped and fixed on the main magnetic steel and a center auxiliary magnetic steel overlapped and fixed on the main pole core; the magnetic circuit system further comprises a center magnetic steel which is overlapped and fixed on the center auxiliary magnetic steel, and an auxiliary pole core which is overlapped and fixed on the center magnetic steel. The thickness of the central magnetic steel can be increased by the sound generating device, namely, the magnetic flux of the magnetic circuit system is improved, and the magnetic flux of the magnetic circuit system is maximized.
Description
Technical Field
The invention relates to the technical field of acoustics, in particular to a sound generating device.
Background
The sounding device is a device for converting electric signal energy into sound energy and comprises a single-vibration system sounding device and a double-vibration system sounding device according to structural distinction.
In the related art, the sounding device of the dual vibration system comprises a first basin frame, a first vibration system fixed on the first basin frame, a second vibration system fixed on the second basin frame and a magnetic circuit system for respectively driving the first vibration system and the second vibration system to vibrate and sound.
The magnetic circuit system comprises a lower clamping plate fixed on a first basin frame, a main magnetic steel which is overlapped and fixed on the lower clamping plate, a first auxiliary magnetic steel which surrounds the main magnetic steel, a main pole core which is flat-plate-shaped and overlapped and fixed on the main magnetic steel, a main pole core which is overlapped and fixed on the main magnetic steel, a central auxiliary magnetic steel which is overlapped and fixed on the main pole core, and a central magnetic steel which is overlapped and fixed on one side of the central auxiliary magnetic steel, which is close to the main pole core.
In the magnetic circuit system, the central magnetic steel is required to be overlapped on the main pole core in a flat plate shape, so that the thickness of the central magnetic steel is limited, namely the magnetic flux of the magnetic circuit system is limited, and the magnetic flux cannot be maximized.
Disclosure of Invention
The invention aims to provide a novel sounding device, which aims to solve the problem that the magnetic flux of a magnetic circuit system of the sounding device in the related art is limited and cannot be maximized.
The invention provides a sound generating device which comprises a first basin frame, a first vibration system, a second basin frame, a second vibration system and a magnetic circuit system, wherein the first vibration system and the second basin frame are fixed on the first basin frame; the first vibration system comprises a first vibrating diaphragm fixed on the first basin frame and a first voice coil driving the first vibrating diaphragm to vibrate, and the second vibration system comprises a second vibrating diaphragm fixed on the second basin frame and a second voice coil driving the second vibrating diaphragm to vibrate; the two opposite sides of the magnetic circuit system are respectively provided with a first magnetic gap and a second magnetic gap, and the first voice coil and the second voice coil are respectively inserted into the first magnetic gap and the second magnetic gap;
The magnetic circuit system comprises a lower clamping plate fixed on the first basin frame, main magnetic steel which is overlapped and fixed on one side of the lower clamping plate far away from the first vibration system, auxiliary magnetic steel which is overlapped and fixed on the lower clamping plate and surrounds the main magnetic steel and is arranged at intervals with the main magnetic steel, an upper clamping plate which is annular and overlapped and fixed on one side of the auxiliary magnetic steel far away from the lower clamping plate and fixed on the second basin frame, a main pole core which is overlapped and fixed on one side of the main magnetic steel far away from the lower clamping plate, and a central auxiliary magnetic steel which is overlapped and fixed on one side of the main pole core far away from the main magnetic steel; the upper clamping plate and the main pole core are spaced to form a second magnetic gap; the main pole core is provided with a first through hole penetrating through the main pole core along the vibration direction of the first vibrating diaphragm, the main magnetic steel is provided with a second through hole penetrating through the main magnetic steel along the vibration direction, the lower clamping plate is provided with a third through hole penetrating through the lower clamping plate along the vibration direction, and the first through hole, the second through hole and the third through hole are coaxially and oppositely arranged;
The magnetic circuit system further comprises a central magnetic steel which is fixedly overlapped on one side of the central auxiliary magnetic steel, close to the main pole core, and an auxiliary pole core which is fixedly overlapped on one side of the central magnetic steel, far away from the central auxiliary magnetic steel, and located in the third through hole, wherein the central magnetic steel sequentially penetrates through the first through hole and the second through hole and is respectively arranged at intervals with the main pole core and the main magnetic steel, and the auxiliary pole core and the lower clamping plate are arranged at intervals to form a first magnetic gap.
Preferably, one side of the upper clamping plate, which is far away from the auxiliary magnetic steel, is fixed on the second basin frame.
Preferably, the first vibration system further comprises a first elastic member fixed to the first frame and the first voice coil, respectively, at a side of the first voice coil, which is close to the first diaphragm; the first vibrating diaphragm is fixed on one side of the first elastic piece, which is far away from the second voice coil.
Preferably, the second vibration system further comprises an elastic support assembly and a ring-shaped framework; one end of the elastic supporting component is fixed on the second basin frame, the other end of the elastic supporting component is fixed on the outer periphery of the framework, and the inner periphery of the framework is fixed on one side, close to the second vibrating diaphragm, of the second voice coil.
Preferably, the elastic support assembly comprises a second elastic piece and an auxiliary vibrating diaphragm; one end of the second elastic piece is fixed on the second basin frame, the other end of the second elastic piece is fixed on the outer periphery of the framework, and the auxiliary vibrating diaphragm is fixed on one side, far away from the second basin frame, of the second elastic piece.
Preferably, the second vibrating diaphragm comprises an outer folding ring and an inner folding ring which are arranged at intervals and are respectively annular, and a fixing part formed by extending the inner periphery of the inner folding ring; the outer periphery of the outer folding ring is fixed on the second basin frame, the inner periphery of the outer folding ring and the outer periphery of the inner folding ring are respectively fixed on the framework, and one side of the fixing part, which is close to the magnetic circuit, is fixed on one side of the center auxiliary magnetic steel, which is far away from the main pole core.
Preferably, the magnetizing direction of the main magnetic steel is parallel to the vibrating direction of the first vibrating diaphragm; the magnetizing directions of the auxiliary magnetic steel, the center auxiliary magnetic steel and the center magnetic steel are respectively parallel and opposite to the magnetizing direction of the main magnetic steel.
Compared with the prior art, the sounding device has the advantages that the first through hole is formed in the main pole core, so that the center magnetic steel stack can penetrate through the first through hole and is fixedly stacked on the center auxiliary magnetic steel, the thickness of the center magnetic steel is increased, namely, the magnetic flux of the magnetic circuit system is improved, and the magnetic flux of the magnetic circuit system is maximized. In addition, the central auxiliary magnetic steel is designed into a flat plate shape and can be used for sealing a rear cavity; the interval between the central magnetic steel and the main pole core can be used for glue overflow treatment during magnetic steel glue so as to increase the reliability allowance; the first through hole is arranged on the main pole core, so that the bass sound effect of the sounding device can be improved; the receiver function part is arranged at one side of the magnetic circuit system far away from the loudspeaker part, namely, the back surface makes sound, so that the high-pitched sound effect can be improved or the receiver function can be realized; the high-pitch part and the low-pitch part form a coaxial full-frequency band loudspeaker, so that the sound effect of the quality can be improved; during voice communication, the receiver function part faces the receiver, and the loudspeaker part can be used as an anti-phase silencing device.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
Fig. 1 is a schematic perspective view of a sound generating device according to an embodiment of the present invention;
fig. 2 is a schematic structural grading diagram of a sound generating device according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is a schematic diagram of magnetizing directions of a magnetic circuit system in a sound generating device according to an embodiment of the present invention.
Wherein, 100, the sounding device; 1. a first basin stand; 2. a first vibration system; 21. a first diaphragm; 22. a first voice coil; 23. a first elastic member; 24. a front cover; 241. a sound outlet hole; 3. a second basin stand; 4. a second vibration system; 41. a second diaphragm; 411. an outer fold ring; 412. an inner folding ring; 413. a fixing part; 42. a second voice coil; 43. an elastic support assembly; 431. a second elastic member; 432. an auxiliary vibrating diaphragm; 44. a skeleton; 5. a magnetic circuit system; 51. a lower clamping plate; 511. a third through hole; 52. main magnetic steel; 521. a second through hole; 53. auxiliary magnetic steel; 54. a main pole core; 541. a first through hole; 55. a center auxiliary magnetic steel; 56. a center magnetic steel; 57. a secondary pole piece; 58. an upper clamping plate; 10. a first magnetic gap; 20. a second magnetic gap; 30. a front cavity.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a sounding device 100, which is shown in fig. 1 to 3, and comprises a first basin frame 1, a first vibration system 2 fixed on the first basin frame 1, a second basin frame 3, a second vibration system 4 fixed on the second basin frame 3, and a magnetic circuit system 5 for driving the first vibration system 2 and the second vibration system 4 to vibrate and sound respectively, wherein the first vibration system 2 and the second vibration system 4 are coaxially arranged and supported on two opposite sides of the magnetic circuit system 5 through the first basin frame 1 and the second basin frame 3 respectively.
Wherein, the first basin frame 1, the first vibration system 2 and the magnetic circuit system 5 together form a receiver function part or a high pitch part of the sound generating device 100; the second frame 3, the second vibration system 4 and the magnetic circuit system 5 together form a speaker part or a bass part of the sound emitting device 100.
The first vibration system 2 includes a first diaphragm 21 fixed to the first frame 1 and a first voice coil 22 driving the first diaphragm 21 to vibrate. The sound generating device 100 further includes a front cover 24 covering the basin frame and spaced apart from the first diaphragm 21 to form a front cavity 30, and the front cover 24 is provided with a sound emitting hole 241 penetrating therethrough along the vibration direction of the first diaphragm 21.
The first vibration system 2 further comprises a first elastic member 23 fixed to the first frame 1 and a side of the first voice coil 22, which is close to the first diaphragm 21, respectively; the first diaphragm 21 is fixed to a side of the first elastic member 23 remote from the second voice coil 42.
The second basin frame 3, the second vibration system 4 and the magnetic circuit system 5 are enclosed together to form a sounding cavity.
The second vibration system 4 includes a second diaphragm 41 fixed to the second frame 3 and a second voice coil 42 driving the second diaphragm 41 to vibrate.
The second vibration system 4 further includes an elastic support member 43 and a ring-shaped skeleton 44; one end of the elastic supporting component 43 is fixed on the second basin frame 3, the other end is fixed on the outer periphery of the framework 44, and the inner periphery of the framework 44 is fixed on one side of the second voice coil 42 close to the second vibrating diaphragm 41.
The elastic support assembly 43 includes a second elastic member 431 and an auxiliary diaphragm 432; one end of the second elastic member 431 is fixed to the second frame 3, and the other end is fixed to the outer periphery of the frame 44, and the auxiliary diaphragm 432 is fixed to a side of the second elastic member 431 away from the second frame 3. The second elastic member 431 and the auxiliary diaphragm 432 respectively include two, one auxiliary diaphragm 432 is fixed to one second elastic member 431, and the two second elastic members 431 are respectively fixed to opposite sides of the second frame 3.
The second diaphragm 41 includes an outer ring 411 and an inner ring 412 which are disposed at intervals and are respectively annular, and a fixing portion 413 formed by extending the inner periphery of the inner ring 412; the outer periphery of the outer folding ring 411 is fixed to the second frame 3, and the inner periphery of the outer folding ring 411 and the outer periphery of the inner folding ring 412 are respectively fixed to the frame 44.
The magnetic circuit system 5 comprises a lower clamping plate 51 fixed on the first basin frame 1, a main magnetic steel 52 overlapped and fixed on one side of the lower clamping plate 51 far away from the first vibration system 2, an auxiliary magnetic steel 53 overlapped and fixed on the lower clamping plate 51 and surrounding the main magnetic steel 52 and arranged at intervals with the main magnetic steel 52, a main pole core 54 overlapped and fixed on one side of the main magnetic steel 52 far away from the lower clamping plate 51, and a center auxiliary magnetic steel 55 overlapped and fixed on one side of the main pole core 54 far away from the main magnetic steel 52; the main pole core 54 is provided with a first through hole 541 penetrating therethrough along the vibration direction of the first vibration system 2, the main magnetic steel 52 is provided with a second through hole 521 penetrating therethrough along the vibration direction, the lower clamping plate 51 is provided with a third through hole 511 penetrating therethrough along the vibration direction, and the first through hole 541, the second through hole 521 and the third through hole 511 are coaxially and oppositely arranged.
The magnetic circuit system 5 further includes a central magnetic steel 56 stacked and fixed on one side of the central auxiliary magnetic steel 55 near the main pole core 54, and the central magnetic steel 56 sequentially passes through the first through hole 541 and the second through hole 521 and is respectively spaced apart from the main pole core 54 and the main magnetic steel 52.
The magnetizing direction of the main magnetic steel 52 is parallel to the vibrating direction of the first diaphragm 21; the magnetizing directions of the auxiliary magnetic steel 53, the center auxiliary magnetic steel 55 and the center magnetic steel 56 are respectively parallel and opposite to the magnetizing direction of the main magnetic steel 52. As shown in fig. 4, in the present embodiment, the magnetizing direction of the main magnet steel 52 is that the side of the main magnet steel 52 away from the lower clamping plate 51 faces the side of the main magnet steel 52 close to the lower clamping plate 51.
The secondary magnetic steels 53 include four, and four first secondary magnetic steels 53 are respectively disposed at four peripheral sides of the primary magnetic steel 52 and are respectively spaced from the primary magnetic steel 52.
The magnetic circuit system 5 further comprises a secondary pole core 57 which is overlapped and fixed on one side of the central magnetic steel 56 far away from the central secondary magnetic steel 55 and is positioned in the third through hole 511, and the secondary pole core 57 and the lower clamping plate 51 are arranged at intervals to form a first magnetic gap 10; the first voice coil 22 is inserted through the third through hole 511 to be suspended from the first magnetic gap 10.
The magnetic circuit system 5 further comprises an upper clamping plate 58 which is annular and is overlapped and fixed on one side of the auxiliary magnetic steel 53 far away from the lower clamping plate 51 and fixed on the second basin frame 3; the upper clamping plate 58 is fixed to the second frame 3 at a side portion away from the auxiliary magnetic steel 53.
The upper clamping plate 58 and the main pole core 54 are spaced to form a second magnetic gap 20, and the second voice coil 42 is inserted and suspended in the second magnetic gap 20.
The side of the fixing portion 413 close to the magnetic circuit system 5 is fixed to the side of the auxiliary magnetic steel 53 away from the main pole core 54.
The sound generating device 100 of this embodiment is provided with the first through hole 541 on the main pole core 54, so that the center magnetic steel 56 can be stacked and fixed on the center auxiliary magnetic steel 55 through the first through hole 541, so as to increase the thickness of the center magnetic steel 56, that is, the magnetic flux of the magnetic circuit 5 is lifted, so that the magnetic flux is maximized, and the space of the first through hole 541 can be increased, so that the strength of the magnetic circuit 5 is increased, the depth of the first magnetic gap 10 is deeper, that is, the vibration space of the first voice coil 22 is larger, and the designability is better. In addition, the center auxiliary magnetic steel 55 is designed into a flat plate shape and can be used for sealing a rear cavity; the spacing between the center magnetic steel 56 and the main pole core 54 can be used for glue overflow treatment during magnetic steel gluing so as to increase the reliability allowance; by providing the first through hole 541 in the main pole core 54, the bass sound effect of the sound emitting device 100 can also be improved; the receiver function part is arranged on one side of the magnetic circuit system 5 away from the loudspeaker part, namely the back surface makes sound, so that the high-pitched sound effect can be improved or the receiver function can be realized; the high-pitch part and the low-pitch part form a coaxial full-frequency band loudspeaker, so that the sound effect of the quality can be improved; during voice communication, the receiver function part faces the receiver, and the loudspeaker part can be used as an anti-phase silencing device.
While the invention has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the invention.
Claims (7)
1. The sound generating device comprises a first basin frame, a first vibration system, a second basin frame, a second vibration system and a magnetic circuit system, wherein the first vibration system and the second basin frame are fixed on the first basin frame, the second vibration system is fixed on the second basin frame, the magnetic circuit system is used for driving the first vibration system and the second vibration system to vibrate and generate sound respectively, and the first vibration system and the second vibration system are coaxially arranged and are supported on two opposite sides of the magnetic circuit system respectively through the first basin frame and the second basin frame; the first vibration system comprises a first vibrating diaphragm fixed on the first basin frame and a first voice coil driving the first vibrating diaphragm to vibrate, and the second vibration system comprises a second vibrating diaphragm fixed on the second basin frame and a second voice coil driving the second vibrating diaphragm to vibrate; the two opposite sides of the magnetic circuit system are respectively provided with a first magnetic gap and a second magnetic gap, and the first voice coil and the second voice coil are respectively inserted into the first magnetic gap and the second magnetic gap; it is characterized in that the method comprises the steps of,
The magnetic circuit system comprises a lower clamping plate fixed on the first basin frame, main magnetic steel which is overlapped and fixed on one side of the lower clamping plate far away from the first vibration system, auxiliary magnetic steel which is overlapped and fixed on the lower clamping plate and surrounds the main magnetic steel and is arranged at intervals with the main magnetic steel, an upper clamping plate which is annular and overlapped and fixed on one side of the auxiliary magnetic steel far away from the lower clamping plate and fixed on the second basin frame, a main pole core which is overlapped and fixed on one side of the main magnetic steel far away from the lower clamping plate, and a central auxiliary magnetic steel which is overlapped and fixed on one side of the main pole core far away from the main magnetic steel; the upper clamping plate and the main pole core are spaced to form a second magnetic gap; the main pole core is provided with a first through hole penetrating through the main pole core along the vibration direction of the first vibrating diaphragm, the main magnetic steel is provided with a second through hole penetrating through the main magnetic steel along the vibration direction, the lower clamping plate is provided with a third through hole penetrating through the lower clamping plate along the vibration direction, and the first through hole, the second through hole and the third through hole are coaxially and oppositely arranged;
The magnetic circuit system further comprises a central magnetic steel which is fixedly overlapped on one side of the central auxiliary magnetic steel, close to the main pole core, and an auxiliary pole core which is fixedly overlapped on one side of the central magnetic steel, far away from the central auxiliary magnetic steel, and located in the third through hole, wherein the central magnetic steel sequentially penetrates through the first through hole and the second through hole and is respectively arranged at intervals with the main pole core and the main magnetic steel, and the auxiliary pole core and the lower clamping plate are arranged at intervals to form a first magnetic gap.
2. The sound generating device as claimed in claim 1, wherein a side of the upper clamping plate remote from the secondary magnetic steel is fixed to the second frame.
3. The sound generating device as claimed in claim 1, wherein the first vibration system further comprises a first elastic member fixed to the first frame and a side of the first voice coil adjacent to the first diaphragm, respectively; the first vibrating diaphragm is fixed on one side of the first elastic piece, which is far away from the second voice coil.
4. The sound emitting device of claim 1, wherein the second vibration system further comprises an elastic support assembly and a skeleton in the shape of a ring; one end of the elastic supporting component is fixed on the second basin frame, the other end of the elastic supporting component is fixed on the outer periphery of the framework, and the inner periphery of the framework is fixed on one side, close to the second vibrating diaphragm, of the second voice coil.
5. The sound emitting device of claim 4, wherein the resilient support assembly comprises a second resilient member and an auxiliary diaphragm; one end of the second elastic piece is fixed on the second basin frame, the other end of the second elastic piece is fixed on the outer periphery of the framework, and the auxiliary vibrating diaphragm is fixed on one side, far away from the second basin frame, of the second elastic piece.
6. The sound generating device as claimed in claim 5, wherein the second diaphragm includes an outer folded ring and an inner folded ring which are disposed at intervals and are respectively annular, and a fixing portion formed by extending an inner periphery of the inner folded ring; the outer periphery of the outer folding ring is fixed on the second basin frame, the inner periphery of the outer folding ring and the outer periphery of the inner folding ring are respectively fixed on the framework, and one side of the fixing part, which is close to the magnetic circuit, is fixed on one side of the center auxiliary magnetic steel, which is far away from the main pole core.
7. The sound generating device of claim 1, wherein the magnetization direction of the primary magnetic steel is parallel to the vibration direction of the first diaphragm; the magnetizing directions of the auxiliary magnetic steel, the center auxiliary magnetic steel and the center magnetic steel are respectively parallel and opposite to the magnetizing direction of the main magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410320282.7A CN117915249B (en) | 2024-03-20 | 2024-03-20 | Sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410320282.7A CN117915249B (en) | 2024-03-20 | 2024-03-20 | Sounding device |
Publications (2)
| Publication Number | Publication Date |
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| CN117915249A true CN117915249A (en) | 2024-04-19 |
| CN117915249B CN117915249B (en) | 2024-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410320282.7A Active CN117915249B (en) | 2024-03-20 | 2024-03-20 | Sounding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118317235A (en) * | 2024-06-07 | 2024-07-09 | 瑞声光电科技(常州)有限公司 | Loudspeaker and loudspeaker box |
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|---|---|---|---|---|
| US10694279B1 (en) * | 2018-12-21 | 2020-06-23 | Alpine Electronics, Inc. | Compact coaxial loudspeaker |
| CN117082416A (en) * | 2023-10-12 | 2023-11-17 | 瑞声光电科技(常州)有限公司 | Sounding device |
| CN117098049A (en) * | 2023-10-19 | 2023-11-21 | 瑞声光电科技(常州)有限公司 | Speaker box and handwriting pen |
| CN117119360A (en) * | 2023-10-23 | 2023-11-24 | 瑞声光电科技(常州)有限公司 | Sounding device |
| CN117395573A (en) * | 2023-10-19 | 2024-01-12 | 瑞声光电科技(常州)有限公司 | Sounding device |
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2024
- 2024-03-20 CN CN202410320282.7A patent/CN117915249B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10694279B1 (en) * | 2018-12-21 | 2020-06-23 | Alpine Electronics, Inc. | Compact coaxial loudspeaker |
| CN117082416A (en) * | 2023-10-12 | 2023-11-17 | 瑞声光电科技(常州)有限公司 | Sounding device |
| CN117098049A (en) * | 2023-10-19 | 2023-11-21 | 瑞声光电科技(常州)有限公司 | Speaker box and handwriting pen |
| CN117395573A (en) * | 2023-10-19 | 2024-01-12 | 瑞声光电科技(常州)有限公司 | Sounding device |
| CN117119360A (en) * | 2023-10-23 | 2023-11-24 | 瑞声光电科技(常州)有限公司 | Sounding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118317235A (en) * | 2024-06-07 | 2024-07-09 | 瑞声光电科技(常州)有限公司 | Loudspeaker and loudspeaker box |
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| CN117915249B (en) | 2024-08-09 |
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