CN212812018U - Sound production device - Google Patents
Sound production device Download PDFInfo
- Publication number
- CN212812018U CN212812018U CN202021310045.6U CN202021310045U CN212812018U CN 212812018 U CN212812018 U CN 212812018U CN 202021310045 U CN202021310045 U CN 202021310045U CN 212812018 U CN212812018 U CN 212812018U
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- CN
- China
- Prior art keywords
- vibration
- dome
- voice coil
- ball top
- diaphragm
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- Expired - Fee Related
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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
-
- 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)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The utility model provides a sounding device, which comprises a basin frame and a vibration system fixed on the basin frame, wherein the vibration system comprises a vibration diaphragm fixed on the basin frame and a voice coil used for driving the vibration diaphragm to vibrate and sound, the vibration diaphragm comprises a vibration part, a folded ring part extending outwards from the periphery of the vibration part and a fixed part extending from one side of the folded ring part far away from the vibration part and fixed on the basin frame; one side of the vibration part close to the voice coil is sunken to form a first accommodating groove along the vibration direction of the vibration film, the vibration system further comprises a first spherical top fixedly accommodated in the first accommodating groove and a second spherical top fixedly embedded in the vibration part and covered on the first spherical top and close to the voice coil, the second spherical top is partially exposed out of the vibration part, and the voice coil is connected to one side of the second spherical top, far away from the first spherical top. Compared with the prior art, the utility model discloses a sounding device high frequency acoustic performance is excellent.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an acoustoelectric field especially relates to an apply to vocal device of portable electronic 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. A sound generating device for playing sound is widely applied to smart mobile devices such as current mobile phones.
The sound production device comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are respectively fixed on the basin frame; the vibration system comprises a vibrating diaphragm fixed on the basin frame, a ball top fixed on the surface of one side, close to the magnetic circuit system, of the vibrating diaphragm and a voice coil connected to the ball top, wherein the voice coil drives the vibrating diaphragm to vibrate and produce sound through the ball top.
However, in the related art, when the diaphragm vibrates at a high frequency, a high frequency peak and valley easily occurs in the vibration of the diaphragm, thereby causing a distortion phenomenon, and limiting high frequency acoustic performance.
Therefore, there is a need to provide a new sound generation device to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a sound production device that high frequency acoustic performance is excellent.
In order to achieve the above object, the present invention provides a sound generating device, which includes a frame and a vibration system fixed on the frame, wherein the vibration system includes a vibrating diaphragm fixed on the frame and a voice coil for driving the vibrating diaphragm to vibrate and generate sound, the vibrating diaphragm includes a vibrating portion, a folded ring portion extending outward from the periphery of the vibrating portion, and a fixing portion extending from one side of the folded ring portion away from the vibrating portion and fixed on the frame; vibration portion is close to one side edge of voice coil loudspeaker voice coil the sunken first accepting groove that forms of vibration direction of vibrating diaphragm, vibration system still including fixed accept in first ball top in the first accepting groove and fixed inlay locate vibration portion and lid are located first ball top is close to the second ball top of voice coil loudspeaker voice coil, second ball top part expose in vibration portion, the voice coil loudspeaker voice coil connect in the second ball top is kept away from one side of first ball top.
Preferably, one side of the vibrating portion, which is close to the voice coil, is recessed along the vibrating direction to form a second accommodating groove, the second accommodating groove is arranged around the first accommodating groove, and the second ball top is fixedly accommodated in the second accommodating groove.
Preferably, the second ball top completely covers the first accommodating groove.
Preferably, one side of the second dome close to the first dome is recessed along the vibration direction to form a positioning groove opposite to the first accommodating groove; one part of the first ball top is fixedly accommodated in the first accommodating groove, and the other part of the first ball top is inserted into the positioning groove and is fixed with the second ball top.
Preferably, a support wall is disposed on a side of the vibration portion close to the voice coil, the support wall surrounds the second accommodating groove and extends in a direction close to the voice coil, and the support wall abuts against the second ball top.
Preferably, the first dome, the second dome and the diaphragm are of an integrally formed structure.
Preferably, the first dome and the second dome are of an integrally formed structure.
Preferably, the orthographic projection of the first dome to the second dome along the vibration direction is completely located within the range of the second dome.
Preferably, the vibrating diaphragm is made of silica gel or rubber material; the first ball top is made of one of PET, PEN, PI, LCP and MCPET; the second dome is made of one of PET, PEN, PI, LCP and MCPET.
Compared with the prior art, in the sounding device of the present invention, the vibrating diaphragm includes a vibrating portion, a corrugated portion extending outward from the periphery of the vibrating portion, and a fixing portion extending from the corrugated portion to a side away from the vibrating portion and fixed to the frame; one side of the vibration part, which is close to the voice coil, is sunken along the vibration direction of the vibration film to form a first accommodating groove, the vibration system further comprises a first spherical top fixedly accommodated in the first accommodating groove and a second spherical top fixedly embedded in the spherical top and covering the first spherical top and close to the voice coil, the second spherical top is partially exposed out of the vibration part, and the voice coil is connected to one side, which is far away from the first spherical top, of the second spherical top; in the structure, the first spherical top and the second spherical top are matched, so that the overall rigidity of the vibrating diaphragm is effectively improved, the vibration of the vibrating diaphragm is more gentle during high-frequency vibration, the appearance of high-frequency peak valleys is effectively avoided, the distortion phenomenon is reduced, and the high-frequency acoustic performance of the sound production device is further optimized.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic perspective view of a first embodiment of the sound device according to the present invention;
fig. 2 is an exploded view of a part of a three-dimensional structure of a first embodiment of the sound device of the present invention;
fig. 3 is an exploded view of a partial perspective structure of another angle of the sound device according to the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 5 is a partial enlarged view of the portion indicated by B in FIG. 4;
fig. 6 is an exploded view of a part of a three-dimensional structure of a second embodiment of the sound device according to the present invention;
fig. 7 is a schematic cross-sectional view of a part of the structure of a second embodiment of the sound device according to the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Implementation mode one
Referring to fig. 1-5, the present invention provides a sound generating device 100, which includes a frame 1, a vibration system 2 fixed on the frame 1, and a magnetic circuit system 3; the magnetic circuit 3 has a magnetic gap 30.
The vibration system 2 comprises a vibrating diaphragm 21 fixed on the basin stand 1, a voice coil 22 used for driving the vibrating diaphragm 21 to vibrate and sound, and a first ball top 23 and a second ball top 24 which are respectively attached and fixed on the vibrating diaphragm 21.
In the first embodiment, the diaphragm 21 is recessed along the vibration direction thereof to form a first receiving groove 2101, the first ball top 23 is fixedly received in the first receiving groove 2101, the second ball top 24 is fixedly embedded in the diaphragm 21 and is covered on the first ball top 23 close to the voice coil 22, and the voice coil 22 is connected to one side of the second ball top 24 away from the first ball top 23 and is inserted in the magnetic gap 30.
Preferably, one side of the vibrating diaphragm 21 close to the second ball top 24 is recessed along the vibration direction thereof to form a second accommodating groove 2102, the second accommodating groove 2102 is arranged around the first accommodating groove 2101, the second ball top 24 is fixedly accommodated in the second accommodating groove 2102, and through the arrangement of the second accommodating groove 2102, the second ball top 24 can be effectively and fixedly accommodated in the inner space of the vibrating diaphragm 21, so that the space utilization rate of the vibrating diaphragm 21 is improved, and the arrangement of the second ball top 24 is prevented from occupying the vibration space.
Further, the vibrating diaphragm 21 includes a vibrating portion 211, a folded ring portion 212 extending outward from the periphery of the vibrating portion 211, and a fixing portion 213 extending from the folded ring portion 212 away from the vibrating portion 211 and fixed to the frame 1.
The first receiving groove 2101 is formed by the vibration portion 211 being close to the voice coil 22 and being recessed along the vibration direction of the diaphragm 21, the second receiving groove 2102 is formed by the vibration portion 211 being close to the voice coil 22 and being recessed along the vibration direction of the diaphragm 21, the first ball top 23 and the second ball top 24 are respectively attached to and fixed to the vibration portion 211, the second ball top 24 is partially exposed to the vibration portion 211, and the voice coil 22 is connected to the second ball top 24 at a side away from the diaphragm 21.
The second ball top 24 completely covers the first accommodating groove 2101; more specifically, the end surface of the diaphragm 21 close to the second dome 24 and the end surface of the first dome 23 close to the second dome 24 are located on the same plane, and the end surface of the first dome 23 close to the second dome 24 abuts against the second dome 24.
It is worth mentioning that the orthographic projection of the first spherical vertex 23 to the second spherical vertex 24 along the vibration direction of the diaphragm 21 is completely located within the range of the second spherical vertex 24.
In the structure, the first spherical top 23 and the second spherical top 24 are matched to effectively improve the overall rigidity of the vibrating diaphragm 21, so that the vibrating diaphragm 21 vibrates more smoothly at high frequency, the occurrence of high-frequency peak and valley is avoided more effectively, the distortion phenomenon is reduced, and the high-frequency acoustic performance of the sound production device 100 is optimized.
Preferably, in order to improve the fixing reliability between the second dome 24 and the diaphragm 21, a support wall 2111 is disposed on a side of the vibration portion 211 close to the voice coil 22, the support wall 2111 surrounds the second receiving cavity 2102 and extends in a direction close to the voice coil 22, the support wall 2111 abuts against the second dome 24, and the support wall 2111 provides support for the bottom of the second dome 24, so that the second dome 24 is not easily separated from the diaphragm 21, thereby improving the fixing reliability between the two, and improving the reliability of the sound generating device 100.
In order to further improve the fixing reliability among the first spherical cap 23, the second spherical cap 24 and the diaphragm 21, the first spherical cap 23, the second spherical cap 24 and the diaphragm 21 are formed as an integral structure.
Furthermore, the first dome 23 and the second dome 24 are integrally formed, which not only improves the reliability of the fixation between the first dome 23 and the second dome 24, but also effectively simplifies the assembling process.
It should be mentioned that the diaphragm 21 is made of silica gel or rubber material; the first dome 23 is made of one of PET (Polyethylene Terephthalate), PEN (Polyethylene Terephthalate) for a polyester resin, PI (Polyimide), LCP (Liquid Crystal Polymer) and MCPET (Micro Cellular PET) for a carbon fiber sandwich dome, the second dome 24 is made of one of PET (Polyethylene Terephthalate), PI (polyester Terephthalate) for a polyester resin, and MCPET (polyester resin) for a polyester resin, wherein the first dome 23 is made of one of a material selected from an aluminum foil sandwich dome or a carbon fiber sandwich dome, the second dome 24 is made of one of PET (Polyethylene Terephthalate), Polyethylene Terephthalate for a polyester resin, and a material selected from a polyester resin, Polyethylene Terephthalate, the structural form of the second ball top 24 can be one of an aluminum foil sandwich structure ball top, a carbon fiber sandwich structure ball top and a carbon fiber unidirectional tape prepreg sandwich structure ball top.
It should be noted that specific materials or structural forms of the diaphragm 21, the first dome 23 and the second dome 24 may be specifically set according to actual situations, and the above materials or structural forms are conventional materials for manufacturing the diaphragm, the first dome and the second dome.
Second embodiment
Please refer to fig. 6-7, which illustrate a sound device 100a of the second embodiment, fig. 6 is a schematic diagram of another embodiment of the structure shown in fig. 3, and fig. 7 is a schematic diagram of another embodiment of the structure shown in fig. 5, it can be known that the sound device 100a of the second embodiment is a derivative embodiment of the sound device of the first embodiment, and the structures of the two are substantially the same, and the description of the same parts is not repeated, and the main difference of the sound device 100a of the second embodiment is:
the second dome 24a is recessed along the vibration direction of the diaphragm 21a to form a positioning groove 240a opposite to the first accommodating groove 2101 a; one part of the first ball top 23a is fixedly accommodated in the first accommodating groove 2101a, and the other part is inserted into the positioning groove 240a and fixed with the second ball top 24 a.
Through the arrangement of the positioning groove 240a, the first spherical top 23a and the second spherical top 24a are mutually inserted and fixed, so that the fixing reliability between the two is effectively improved, and the rigidity of the structure formed by the two together is better improved.
Compared with the prior art, in the sounding device of the present invention, the vibrating diaphragm includes a vibrating portion, a corrugated portion extending outward from the periphery of the vibrating portion, and a fixing portion extending from the corrugated portion to a side away from the vibrating portion and fixed to the frame; one side of the vibration part, which is close to the voice coil, is sunken along the vibration direction of the vibration film to form a first accommodating groove, the vibration system further comprises a first spherical top fixedly accommodated in the first accommodating groove and a second spherical top fixedly embedded in the spherical top and covering the first spherical top and close to the voice coil, the second spherical top is partially exposed out of the vibration part, and the voice coil is connected to one side, which is far away from the first spherical top, of the second spherical top; in the structure, the first spherical top and the second spherical top are matched, so that the overall rigidity of the vibrating diaphragm is effectively improved, the vibration of the vibrating diaphragm is more gentle during high-frequency vibration, the appearance of high-frequency peak valleys is effectively avoided, the distortion phenomenon is reduced, and the high-frequency acoustic performance of the sound production device is further optimized.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (9)
1. A sound production device comprises a basin frame and a vibration system fixed on the basin frame, wherein the vibration system comprises a vibrating diaphragm fixed on the basin frame and a voice coil used for driving the vibrating diaphragm to vibrate and produce sound, the vibrating diaphragm comprises a vibrating part, a folded ring part extending outwards from the periphery of the vibrating part and a fixing part extending from one side of the folded ring part far away from the vibrating part and fixed on the basin stand, it is characterized in that one side of the vibration part close to the voice coil is recessed along the vibration direction of the vibrating diaphragm to form a first containing groove, the vibration system also comprises a first ball top fixedly accommodated in the first accommodating groove and a second ball top fixedly embedded in the vibration part and covered on the first ball top and close to the voice coil, the second dome part is exposed out of the vibration part, and the voice coil is connected to one side, far away from the first dome, of the second dome.
2. The sounding device according to claim 1, wherein a side of the vibrating portion adjacent to the voice coil is recessed along the vibration direction to form a second receiving groove, the second receiving groove is disposed around the first receiving groove, and the second ball-top is fixedly received in the second receiving groove.
3. The sounder device according to claim 2, wherein the second dome completely covers the first receiving cavity.
4. The sound production device as claimed in claim 2, wherein one side of the second dome close to the first dome is recessed along the vibration direction to form a positioning groove opposite to the first receiving groove; one part of the first ball top is fixedly accommodated in the first accommodating groove, and the other part of the first ball top is inserted into the positioning groove and is fixed with the second ball top.
5. The sounding device according to claim 2, wherein a supporting wall is disposed on a side of the vibrating portion close to the voice coil, the supporting wall surrounds the second receiving cavity and extends in a direction close to the voice coil, and the supporting wall abuts against the second ball top.
6. The sounding device according to any of claims 1-5, wherein the first dome, the second dome and the diaphragm are of an integrally formed structure.
7. The sounder device according to any one of claims 1-5, wherein the first dome and the second dome are of unitary construction.
8. The sounder device according to claim 7, wherein a forward projection of the first dome to the second dome in the vibration direction lies entirely within the second dome.
9. The sounding device according to claim 7, wherein the diaphragm is made of silica gel or rubber material; the first ball top is made of one of PET, PEN, PI, LCP and MCPET; the second dome is made of one of PET, PEN, PI, LCP and MCPET.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310045.6U CN212812018U (en) | 2020-07-06 | 2020-07-06 | Sound production device |
| PCT/CN2020/114316 WO2022007173A1 (en) | 2020-07-06 | 2020-09-10 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310045.6U CN212812018U (en) | 2020-07-06 | 2020-07-06 | Sound production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212812018U true CN212812018U (en) | 2021-03-26 |
Family
ID=75101421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021310045.6U Expired - Fee Related CN212812018U (en) | 2020-07-06 | 2020-07-06 | Sound production device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN212812018U (en) |
| WO (1) | WO2022007173A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201611945U (en) * | 2009-12-07 | 2010-10-20 | 瑞声声学科技(深圳)有限公司 | Electromagnetic loudspeaker |
| CN205847561U (en) * | 2016-06-07 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Vibrational system and the speaker of this vibrational system of application |
| CN106817658A (en) * | 2017-01-12 | 2017-06-09 | 瑞声科技(沭阳)有限公司 | Vibrating diaphragm and microphone device |
| CN208462044U (en) * | 2018-12-25 | 2019-02-01 | 瑞声光电科技(常州)有限公司 | A kind of loudspeaker |
| CN109889964B (en) * | 2018-12-30 | 2021-02-26 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN109862490B (en) * | 2018-12-30 | 2021-07-09 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN109819382A (en) * | 2018-12-30 | 2019-05-28 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN209897256U (en) * | 2019-04-19 | 2020-01-03 | 瑞声科技(新加坡)有限公司 | Vibrating diaphragm and sound production device |
-
2020
- 2020-07-06 CN CN202021310045.6U patent/CN212812018U/en not_active Expired - Fee Related
- 2020-09-10 WO PCT/CN2020/114316 patent/WO2022007173A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022007173A1 (en) | 2022-01-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210326 Termination date: 20210706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |