CN210781333U - Sound production device - Google Patents
Sound production device Download PDFInfo
- Publication number
- CN210781333U CN210781333U CN201922057160.0U CN201922057160U CN210781333U CN 210781333 U CN210781333 U CN 210781333U CN 201922057160 U CN201922057160 U CN 201922057160U CN 210781333 U CN210781333 U CN 210781333U
- Authority
- CN
- China
- Prior art keywords
- basin frame
- diaphragm
- cover plate
- lower cover
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000005476 soldering Methods 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 238000000034 method Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000001755 vocal effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
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
- H04R9/02—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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a sounding device, which 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 sound, the vibration system comprises a vibration diaphragm which is fixed on the basin frame and used for vibrating and sound, the magnetic circuit system comprises a magnetic bowl which is fixed on the basin frame and is arranged opposite to the vibration diaphragm, and the vibration diaphragm, the magnetic bowl and the basin frame are enclosed to form an inner cavity; the sounding device further comprises a lower cover plate fixed on one side of the basin frame far away from the vibration system, the lower cover plate comprises a bottom wall opposite to the basin frame at a spacing and a peripheral wall bent and extended from the periphery of the bottom wall to the direction close to the basin frame, and the peripheral wall is abutted and fixed on one side of the basin frame far away from the vibration system; the lower cover plate, the magnetic bowl and the basin frame jointly enclose a rear cavity communicated with the inner cavity. Compared with the prior art, the utility model discloses a sounding device, the reliability is better.
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 internet era, the number of mobile terminal devices has increased. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. Sound generating devices for playing sounds such as music are widely used in mobile terminal devices such as cellular phones.
Related art's vocal device, including the basin frame, be fixed in vibration system, drive on the basin frame the magnetic circuit of vibration system vibration sound production, be fixed in the basin frame is kept away from the steel ring and the lid of vibration system one side are located the steel ring is kept away from the lower apron of basin frame one end, lower apron the steel ring and magnetic circuit encloses into the back chamber jointly.
However, in the related art, the lower cover plate and the steel ring are of a split structure, the assembly process is complicated, the steel ring and the basin frame are bonded through glue, the lower cover plate and the steel ring are bonded through glue, and when the lower cover plate falls, the steel ring and the lower cover plate are easy to fall off, so that the reliability is poor.
Therefore, there is a need to provide a new sound generation device to solve the above problems.
[ Utility model ] content
An object of the utility model is to provide a better vocal device of reliability.
In order to achieve the above object, the present invention provides a sound production 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 produce sound, wherein the vibration system includes a vibration diaphragm fixed on the frame and used for vibrating and producing sound, the magnetic circuit system includes a magnetic bowl fixed on the frame and arranged opposite to the vibration diaphragm, and the vibration diaphragm, the magnetic bowl and the frame enclose to form an inner cavity; the sounding device further comprises a lower cover plate fixed on one side of the basin frame far away from the vibration system, the lower cover plate comprises a bottom wall opposite to the basin frame at a spacing and a peripheral wall bent and extended from the periphery of the bottom wall to the direction close to the basin frame, and the peripheral wall is abutted and fixed on one side of the basin frame far away from the vibration system; the lower cover plate, the magnetic bowl and the basin frame jointly enclose a rear cavity communicated with the inner cavity.
Preferably, the lower cover plate further comprises a flange bent and extended from one end of the peripheral wall far away from the bottom wall, the sounding device further comprises a soldering lug embedded in the basin frame, the soldering lug is located on one side of the basin frame close to the lower cover plate, and the flange is welded and fixed with the soldering lug.
Preferably, the basin frame comprises a main body part for fixing the vibrating diaphragm and supporting legs extending from one side, far away from the vibrating diaphragm, of the main body part towards the direction of the lower cover plate, and at least part of the soldering lug is exposed on one side, close to the lower cover plate, of the supporting legs.
Preferably, the magnetic bowl comprises a support wall arranged opposite to the vibrating diaphragm and a side wall bent and extended from the edge of the support wall towards the vibrating diaphragm, the support wall is arranged between two adjacent support legs, and the support wall correspondingly forms a notch avoiding the support legs.
Preferably, the supporting wall and the supporting leg are arranged at intervals, and the inner cavity is communicated with the rear cavity through the gap.
Preferably, the magnetic circuit system is provided with a communicating part in a penetrating way, and the inner cavity is communicated with the rear cavity through the communicating part.
Preferably, the sounding device further comprises a ventilation spacer attached to the magnetic circuit system, and the ventilation spacer covers the communication portion.
Preferably, the magnetic circuit system further includes a main magnetic steel fixed on one side of the support wall close to the diaphragm and opposite to the diaphragm, the communicating portion sequentially penetrates through the support wall and the main magnetic steel, and the ventilation isolating piece is fixed on one side of the main magnetic steel close to the diaphragm.
Preferably, the basin stand further comprises a blocking wall protruding from one side of the support leg away from the diaphragm, and the blocking wall extends along the outer periphery of the flange.
Preferably, the flanging comprises a plurality of flanges which are arranged at intervals, and the number of the soldering lugs corresponds to the number of the flanging one by one.
Preferably, the lower cover plate is perforated with a leakage hole.
Compared with the prior art, the lower cover plate of the sounding device of the utility model is of an integrated structure, the forming and assembling process is simple and the reliability is better; the lower cover plate extends to form a flanging, a soldering lug is embedded into the basin frame, and laser electric welding is carried out on the soldering lug and the flanging, so that the lower cover plate is fixed on the basin frame to form a rear cavity in a surrounding manner, the fixing strength is high, and the reliability of the sounding device is improved.
[ 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 the sound device of the present invention;
FIG. 2 is an exploded view of the sound device according to the present invention;
FIG. 3 is a partially exploded view of another three-dimensional structure of the sound device of the present invention;
fig. 4 is a cross-sectional view along B-B of fig. 1.
[ 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.
Referring to fig. 1-4, the present invention provides a sound-producing device 100, which comprises a frame 5, a vibration system 2 fixed on the frame 5, a magnetic circuit system 3 for driving the vibration system 2 to vibrate and produce sound, a lower cover plate 4 fixed on one side of the frame 5 far from the vibration system 2, an upper cover plate 1 covering one side of the lower cover plate 4 far from the vibration system 2, a soldering lug 6, and a breathable isolation member 7.
The upper cover plate 1, the basin frame 5 and the lower cover plate 4 together enclose an accommodating space (not shown), and the vibration system 2 and the magnetic circuit system 3 are accommodated in the accommodating space.
The vibration system 2 is used for vibrating and sounding and comprises a vibrating diaphragm 21 and an audio coil 22, and the vibrating diaphragm 21 is clamped between the upper cover plate 1 and the basin stand 5.
The magnetic circuit system 3 is used for driving the vibration system 2 to vibrate and sound, and the magnetic circuit system 3 includes a magnetic bowl 31 arranged opposite to the diaphragm 21, a main magnetic steel 32, and a communicating part 33 penetrating through the magnetic circuit system 3.
The magnetic bowl 31 comprises a support wall 311 arranged opposite to the diaphragm and a side wall 312 bent and extended from the edge of the support wall 311 toward the diaphragm; the supporting wall 311 includes a notch 3110 for avoiding the frame 5, and the communicating portion 33 sequentially penetrates through the main magnet steel 32 and the supporting wall 311 along the vibration direction of the diaphragm.
The lower cover plate 4, the basin frame 5 and the magnetic bowl 3 jointly enclose a rear cavity 8 for improving the low-frequency acoustic performance of the sound production device 100.
The vibrating diaphragm 21, the magnetic bowl 31 and the basin frame 5 jointly enclose to form an inner cavity 9, and the inner cavity 9 is communicated with the rear cavity 8 through the communicating part 33.
The main magnetic steel 32 is fixed on one side of the support wall 311 close to the diaphragm 21, and is arranged opposite to the diaphragm 21.
Lower apron 4 is integrated into one piece structure, in this embodiment, for stainless steel material integrated into one piece, and shaping and assembly process are simple and the reliability is better.
The lower cover plate 4 comprises a bottom wall 41 arranged at an interval with the frame 5, a peripheral wall 42 bent and extended from the periphery of the bottom wall 41 to the direction close to the frame 5, a plurality of flanges 43 bent and extended from one end of the peripheral wall 42 far away from the bottom wall 41 and spaced from each other, and a leakage hole 40 penetrating through the bottom wall 41, wherein the leakage hole 40 communicates the rear cavity 8 with the outside; as shown in fig. 3, the turned-up edges 43 are provided at the corners of the square annular peripheral wall 42, and of course, the number of the turned-up edges 43 corresponds to the number of the soldering lugs 6; the peripheral wall 42 is fixed in abutment with the side of the frame 5 remote from the vibration system 2.
The basin frame 5 plays a role in supporting and fixing, and comprises a main body part 51 for fixing the vibrating diaphragm 21, supporting legs 52 extending from one side of the vibrating diaphragm 21 towards the direction of the lower cover plate 4 and blocking walls 53 protruding from the supporting legs 52 away from one side of the vibrating diaphragm 21.
In this embodiment, the number of the supporting legs 52 is 4, the supporting legs are spaced from the supporting wall 311, and four notches 3110 are formed for avoiding the supporting legs 52 corresponding to the supporting wall 311 of the magnetic bowl 31; certainly, the number of the supporting legs 52 is not limited to four, and the number of the soldering lugs 6 corresponds to one; the blocking wall 53 is formed to extend toward the lower cover plate 4 along the outer circumference of the burring 43 to protect the burring 43.
In this embodiment, there are 4 soldering lugs 6, which are respectively embedded in the supporting legs 52 and at least partially exposed on one side of the supporting legs 52 close to the lower cover plate 4. The flanging 43 is welded and fixed with the soldering lug 6, and the blocking wall 53 protects the flanging 43 and the soldering lug 6. The lower cover plate 4, the basin frame 5 and the magnetic circuit system 3 are enclosed into the rear cavity together through the welding sheet 6 and the laser spot welding of the flanging 43, so that the structure is more stable, and the reliability is higher.
The ventilation spacer 7 is attached to one side of the main magnet steel 32 close to the diaphragm 21, and covers one end of the communication part 33 close to the diaphragm 21.
Compared with the prior art, the lower cover plate of the sounding device of the utility model is of an integrated structure, the forming and assembling process is simple and the reliability is better; the lower cover plate extends to form a flanging, a soldering lug is embedded into the basin frame, and laser electric welding is carried out on the soldering lug and the flanging, so that the lower cover plate is fixed on the basin frame to form a rear cavity in a surrounding manner, the fixing strength is high, and the reliability of the sounding device is improved.
The utility model provides an above only do the embodiment of the utility model not consequently the restriction the patent scope of the utility model, all utilize the utility model discloses equivalent structure or equivalent flow transform that the content of description and drawing was done, or direct or indirect application is in other relevant technical field, all the same reason is included the utility model discloses an in the patent protection scope.
Claims (11)
1. A sounding 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 sound, the vibration system comprises a vibration diaphragm which is fixed on the basin frame and used for vibrating and sounding, the magnetic circuit system comprises a magnetic bowl which is fixed on the basin frame and arranged opposite to the vibration diaphragm, and the vibration diaphragm, the magnetic bowl and the basin frame enclose to form an inner cavity; the sounding device further comprises a lower cover plate fixed on one side of the basin frame far away from the vibration system, the lower cover plate comprises a bottom wall opposite to the basin frame at a spacing and a peripheral wall bent and extended from the periphery of the bottom wall to the direction close to the basin frame, and the peripheral wall is abutted and fixed on one side of the basin frame far away from the vibration system; the lower cover plate, the magnetic bowl and the basin frame jointly enclose a rear cavity communicated with the inner cavity.
2. The sounding device according to claim 1, wherein the lower cover plate further comprises a flange bent and extended from one end of the peripheral wall away from the bottom wall, the sounding device further comprises a soldering lug embedded in the basin frame, the soldering lug is located on one side of the basin frame close to the lower cover plate, and the flange is welded and fixed with the soldering lug.
3. The sounding device according to claim 2, wherein the frame comprises a main body portion for fixing the diaphragm, and a supporting leg extending from a side of the main body portion away from the diaphragm toward the lower cover plate, and the soldering tab is at least partially exposed from a side of the supporting leg close to the lower cover plate.
4. The sounding device according to claim 3, wherein the magnetic bowl includes a support wall disposed opposite to the diaphragm, and a sidewall extending from an edge of the support wall to the diaphragm, the support wall is disposed between two adjacent support legs, and the support wall correspondingly forms a notch avoiding the support legs.
5. The sounder device according to claim 4, wherein the support wall is spaced from the support foot, and the interior cavity communicates with the rear cavity via the gap.
6. The sounding device according to claim 4, wherein a communication portion is formed through the magnetic circuit system, and the inner cavity is communicated with the rear cavity through the communication portion.
7. The sounder device according to claim 6, further comprising a gas permeable spacer affixed to the magnetic circuit system, the gas permeable spacer covering the communication portion.
8. The sound production device as claimed in claim 7, wherein the magnetic circuit system further comprises a main magnetic steel fixed on one side of the support wall close to the diaphragm and facing the diaphragm, the communication portion sequentially penetrates through the support wall and the main magnetic steel, and the air-permeable spacer is fixed on one side of the main magnetic steel close to the diaphragm.
9. The sounding device according to claim 3, wherein the frame further comprises a blocking wall protruding from the supporting leg on a side away from the diaphragm, and the blocking wall extends along an outer periphery of the flange.
10. The sounding device according to claim 2, wherein the flanging comprises a plurality of flanges which are arranged at intervals, and the number of the soldering lugs corresponds to the number of the flanging one by one.
11. The sounder device according to claim 1, wherein the lower cover plate has a leak hole formed therethrough.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922057160.0U CN210781333U (en) | 2019-11-25 | 2019-11-25 | Sound production device |
| PCT/CN2019/123902 WO2021103124A1 (en) | 2019-11-25 | 2019-12-09 | Sound producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922057160.0U CN210781333U (en) | 2019-11-25 | 2019-11-25 | Sound production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210781333U true CN210781333U (en) | 2020-06-16 |
Family
ID=71040408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922057160.0U Expired - Fee Related CN210781333U (en) | 2019-11-25 | 2019-11-25 | Sound production device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210781333U (en) |
| WO (1) | WO2021103124A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153503A (en) * | 2020-08-27 | 2020-12-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| CN112312246A (en) * | 2020-11-30 | 2021-02-02 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| WO2022099804A1 (en) * | 2020-11-12 | 2022-05-19 | 瑞声声学科技(深圳)有限公司 | Sound production device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201114750Y (en) * | 2007-09-03 | 2008-09-10 | 瑞声声学科技(深圳)有限公司 | Miniature speaker box |
| TWI387426B (en) * | 2009-01-09 | 2013-02-21 | Asustek Comp Inc | Electronic device |
| CN202103832U (en) * | 2011-05-31 | 2012-01-04 | 常州美欧电子有限公司 | Sounding device |
| CN104883648B (en) * | 2015-05-13 | 2019-05-17 | 歌尔股份有限公司 | Vibrating speaker |
-
2019
- 2019-11-25 CN CN201922057160.0U patent/CN210781333U/en not_active Expired - Fee Related
- 2019-12-09 WO PCT/CN2019/123902 patent/WO2021103124A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153503A (en) * | 2020-08-27 | 2020-12-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| CN112153503B (en) * | 2020-08-27 | 2022-03-25 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| WO2022099804A1 (en) * | 2020-11-12 | 2022-05-19 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| CN112312246A (en) * | 2020-11-30 | 2021-02-02 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| CN112312246B (en) * | 2020-11-30 | 2022-03-01 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| WO2022110463A1 (en) * | 2020-11-30 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Sound producing device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021103124A1 (en) | 2021-06-03 |
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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: 20200616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |