CN205142500U - Sounding device - Google Patents
Sounding device Download PDFInfo
- Publication number
- CN205142500U CN205142500U CN201520843664.4U CN201520843664U CN205142500U CN 205142500 U CN205142500 U CN 205142500U CN 201520843664 U CN201520843664 U CN 201520843664U CN 205142500 U CN205142500 U CN 205142500U
- Authority
- CN
- China
- Prior art keywords
- breach
- frame
- magnet steel
- lower plate
- cavity
- 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
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- 239000000178 monomer Substances 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 2
- 230000001755 vocal effect Effects 0.000 abstract 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 210000000481 breast Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a sounding device. Sounding device includes the shell that has the cavity and installs the vocal monomer on the shell, the sound production monomer includes the basin frame, accept magnetic circuit and vibration system in the basin frame, magnetic circuit includes the lower plate, paste and locate the main magnet steel on the lower plate, paste locate on the lower plate around the vice magnet steel of main magnet steel setting with paste the punch holder of locating on pair magnet steel, vibration system includes the vibrating diaphragm of rigid coupling on the basin frame, the basin erects the hole of revealing of intercommunication cavity and vocal monomer inside, vocal monomer further go up and the nethike embrane in hole is revealed in the cover including locating by the basin frame, vice magnet steel is equipped with first breach, first breach with reveal the hole and be linked together, the punch holder is equipped with the second breach in first breach department, reveal the hole, first breach and second breach form the first passageway of revealing, first reveal the passageway with the gas leakage of vibrating diaphragm below to the cavity in. Compared with the prior art, the utility model discloses sounding device has improved the low frequency performance, and stability is good, the reliability is high.
Description
[technical field]
The utility model relates to electroacoustic switch technology field, particularly relates to a kind of microphone device.
[background technology]
In recent years, portable mobile electronic product is more and more liked by people, and the expectation of people to multi-functional product is also more and more higher, for Music Appreciation aspect, mobile product with music pattern becomes the first-selected requirement of a lot of people, for this reason the corresponding matching technique of microphone device also development.
The microphone device of correlation technique, comprises the shell with cavity and is installed on the sounding monomer on described shell, and sounding monomer comprises main magnet steel, produces the secondary magnet steel of magnetic gap with main magnet steel, the voice coil loudspeaker voice coil being placed in magnetic gap, the vibrating diaphragm that is connected with voice coil loudspeaker voice coil.When passing into alternating current in voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil be in magnetic gap can because the effect in magnetic field produces motion, and along with the change of electric current, this motion also can change thereupon, thus drives vibrating diaphragm up-down vibration, causes the generation of sound.
In diaphragm oscillations process, the air in back cavity can be compressed or be expanded, and therefore, frame offers leak so that the circulation of air, and usually needs filling sound absorption powder to increase back cavity volume to reduce resonance in shell.But the microphone device of correlation technique is not good to leak encapsulation process, sound absorption powder is often made to enter sounding monomer; In addition, because of the progress of technique, the body volume of sounding monomer constantly reduces, and impels the gas flow below vibrating diaphragm to be obstructed, and then affects the acoustic efficiency of microphone device.
Therefore, be necessary to provide a kind of new microphone device to solve the problem in fact.
[utility model content]
The purpose of this utility model is to provide that a kind of low frequency performance is good, acoustic efficiency is excellent, good stability and the high microphone device of reliability.
The technical solution of the utility model is as follows: the utility model provides a kind of microphone device, comprise the shell with cavity and the sounding monomer be installed on described shell, described sounding monomer comprises the frame of tool receiving space, be contained in the magnetic circuit system in described frame and vibrational system, described magnetic circuit system comprises the lower plate be arranged at bottom described frame, be attached at the main magnet steel on described lower plate, be attached at secondary magnet steel that described lower plate is arranged around described main magnet steel and be oppositely arranged with described lower plate the train wheel bridge be attached on described secondary magnet steel, between described lower plate and frame, sealing is installed, described vibrational system comprises the vibrating diaphragm be fixed in described frame and the voice coil loudspeaker voice coil driving described diaphragm oscillations, described frame is provided with the leak holes being communicated with described cavity and sounding monomer inside, described microphone device comprises the sound absorption powder be filled in described cavity further, described sounding monomer comprises further and is arranged in described frame and covers the nethike embrane of described leak holes, described nethike embrane is isolated described sound absorption powder and is entered described sounding monomer inside, described secondary magnet steel is provided with the first breach, described first breach is connected with described leak holes, described train wheel bridge is provided with the second breach in described first indentation, there, described leak holes, first breach and the second breach form the first leakage, described first leakage by the Leakage Gas below described vibrating diaphragm in described cavity.
In a kind of preferred embodiment of the microphone device provided at the utility model, described frame is provided with the protuberance of the described train wheel bridge of engaging extended to described magnetic circuit system direction, described protuberance is provided with the notch run through on it, described notch communicates with described leak holes, described notch and described leak holes form the second leakage, described second leakage by the Leakage Gas below described vibrating diaphragm in described cavity.
In a kind of preferred embodiment of the microphone device provided at the utility model, described nethike embrane adopts injection molding manner to be arranged in described frame.
In a kind of preferred embodiment of the microphone device provided at the utility model, adopt between described lower plate and frame and play glue and seal.
Compared with correlation technique, microphone device of the present utility model by arranging described first leakage, the second leakage make below described vibrating diaphragm air flow to described cavity faster, coordinate described sound absorption powder energy active balance air pressure; Described nethike embrane adopts injection molding manner to be arranged in described frame, adopt between described lower plate and frame simultaneously and play glue sealing, when making microphone device, conveniently in described shell, insert sound absorption powder, prevent sound absorption powder from entering in sounding monomer, sound absorption powder can fill body of having one's bosom filled with, and improves the efficiency of described microphone device further, improves its acoustical behavior.
[accompanying drawing explanation]
Fig. 1 is the cross-sectional view of the microphone device that the utility model provides.
The decomposing schematic representation of the sounding monomer that Fig. 2 is microphone device shown in Fig. 1.
The schematic top plan view of the sounding monomer that Fig. 3 is microphone device shown in Fig. 1.
The side schematic view of the sounding monomer that Fig. 4 is microphone device shown in Fig. 1.
Fig. 5 is for the monomer of sounding shown in Fig. 3 is along the partial cutaway schematic view of A-A line.
Fig. 6 is for the monomer of sounding shown in Fig. 3 is along the partial cutaway schematic view of B-B line.
[embodiment]
Below in conjunction with drawings and embodiments, the invention will be further described.
Referring to Fig. 1, is the cross-sectional view of the microphone device that the utility model provides.Described microphone device 1 comprises the shell 11 with cavity 10, the sound absorption powder 13 being installed on the sounding monomer 12 on described shell 11 and being filled in described cavity 10.
See also Fig. 2, Fig. 3, Fig. 4 and Fig. 5, wherein, the decomposing schematic representation of the sounding monomer that Fig. 2 is microphone device shown in Fig. 1; The schematic top plan view of the sounding monomer that Fig. 3 is microphone device shown in Fig. 1; The side schematic view of the sounding monomer that Fig. 4 is microphone device shown in Fig. 1; Fig. 5 is for the monomer of sounding shown in Fig. 3 is along the partial cutaway schematic view of A-A line.The frame 121 that described sounding monomer 12 comprises tool receiving space, the nethike embrane 124 being contained in magnetic circuit system 122 in described frame 121 and vibrational system 123 and being attached in frame 121.Described nethike embrane 124 adopts injection molding manner to be arranged in described frame 121, isolates described sound absorption powder 13 and enters described sounding monomer 12 inside.
Described magnetic circuit system 122 comprises and is arranged at the lower plate 1221 bottom described frame 121, the main magnet steel 1222 be attached on described lower plate 1221, is attached at secondary magnet steel 1223 that described lower plate 1221 is arranged around described main magnet steel 1222 and is oppositely arranged with described lower plate 1221 train wheel bridge 1224 be attached on described secondary magnet steel 1223.Between described lower plate 1221 and described frame 121, sealing is installed, and in the present embodiment, preferably beats glue mode and seals.
Described vibrational system 123 comprises the vibrating diaphragm 1231 be fixed in described frame 121 and the voice coil loudspeaker voice coil 1232 driving described vibrating diaphragm 1231 to vibrate.
Described frame 121 is provided with the protuberance 1212 of the leak holes 1211 being communicated with described cavity 10 and sounding monomer 12 inside, the described train wheel bridge 1224 of engaging extended to described magnetic circuit system 122 direction, and described leak holes 1211 is covered by described nethike embrane 124.
Described secondary magnet steel 1223 is provided with the first breach 12231, described first breach 12231 is connected with described leak holes 1211, described train wheel bridge 1224 is provided with the second breach 12241 at described first breach 12231 place, described leak holes 1211, first breach 12231 and the second breach 12241 form the first leakage, described first leakage by the Leakage Gas below described vibrating diaphragm 1231 in described cavity 10.
Described protuberance 1212 is provided with the notch 12121 run through on it, described notch 12121 communicates with described leak holes 1211, described notch 12121 and described leak holes 1211 form the second leakage, described second leakage by the Leakage Gas below described vibrating diaphragm 1231 in described cavity 10.
When described voice coil loudspeaker voice coil 1232 passes into electric current, the described voice coil loudspeaker voice coil 1232 be between described main magnet steel 1222 and described secondary magnet steel 1223 because the effect in magnetic field produces can move, thus drive described vibrating diaphragm 1231 up-down vibration, and then produces sound.The air of described vibrating diaphragm 1231 when vibration processes in described cavity 10 can be compressed or be expanded, atmospheric molecular concentration in described cavity 10 increases or reduces, now described sound absorption powder 13 can adsorb or discharge air molecule, changes to balance described cavity 10 internal gas pressure.
Please again consult Fig. 5, for the monomer of sounding shown in Fig. 3 is along the partial cutaway schematic view of A-A line, when described vibrating diaphragm 1231 vibrates, the gas below described vibrating diaphragm 1231 will be leaked in described cavity 10 by described first leakage.
Refer to Fig. 6, for the monomer of sounding shown in Fig. 3 is along the partial cutaway schematic view of B-B line, when described vibrating diaphragm 1231 vibrates, the gas below described vibrating diaphragm 1231 is leaked in described cavity 10 by described second leakage.
Compared with correlation technique, microphone device 1 of the present utility model by arranging described first leakage, the second leakage make below described vibrating diaphragm 1231 air flow to described cavity 10 faster, coordinate described sound absorption powder 13 can active balance air pressure; Described nethike embrane 124 adopts injection molding manner to be arranged in described frame 121, adopt between described lower plate 1221 and frame 121 simultaneously and beat glue encapsulation process, when making microphone device 1, in described shell 11, conveniently insert sound absorption powder 13, prevent sound absorption powder 13 from entering in sounding monomer 12, sound absorption powder 13 can fill body 10 of having one's bosom filled with, and improves the efficiency of described microphone device 1 further, improves its acoustical behavior.
Above-described is only embodiments of the present invention, it should be pointed out that for the person of ordinary skill of the art at this, without departing from the concept of the premise of the invention, can also make improvement, but these all belongs to protection scope of the present invention.
Claims (4)
1. a microphone device, comprise the shell with cavity and the sounding monomer be installed on described shell, it is characterized in that: described sounding monomer comprises the frame of tool receiving space, be contained in the magnetic circuit system in described frame and vibrational system, described magnetic circuit system comprises the lower plate be arranged at bottom described frame, be attached at the main magnet steel on described lower plate, be attached at secondary magnet steel that described lower plate is arranged around described main magnet steel and be oppositely arranged with described lower plate the train wheel bridge be attached on described secondary magnet steel, between described lower plate and frame, sealing is installed, described vibrational system comprises the vibrating diaphragm be fixed in described frame and the voice coil loudspeaker voice coil driving described diaphragm oscillations, described frame is provided with the leak holes being communicated with described cavity and sounding monomer inside, described microphone device comprises the sound absorption powder be filled in described cavity further, described sounding monomer comprises further and is arranged in described frame and covers the nethike embrane of described leak holes, described nethike embrane is isolated described sound absorption powder and is entered described sounding monomer inside, described secondary magnet steel is provided with the first breach, described first breach is connected with described leak holes, described train wheel bridge is provided with the second breach in described first indentation, there, described leak holes, first breach and the second breach form the first leakage, described first leakage by the Leakage Gas below described vibrating diaphragm in described cavity.
2. microphone device according to claim 1, it is characterized in that: described frame is provided with the protuberance of the described train wheel bridge of engaging extended to described magnetic circuit system direction, described protuberance is provided with the notch run through on it, described notch communicates with described leak holes, described notch and described leak holes form the second leakage, described second leakage by the Leakage Gas below described vibrating diaphragm in described cavity.
3. microphone device according to claim 1, is characterized in that: described nethike embrane adopts injection molding manner to be arranged in described frame.
4. microphone device according to claim 1, is characterized in that: adopt between described lower plate and frame and play glue sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843664.4U CN205142500U (en) | 2015-10-28 | 2015-10-28 | Sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843664.4U CN205142500U (en) | 2015-10-28 | 2015-10-28 | Sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205142500U true CN205142500U (en) | 2016-04-06 |
Family
ID=55628246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520843664.4U Expired - Fee Related CN205142500U (en) | 2015-10-28 | 2015-10-28 | Sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205142500U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101956A (en) * | 2016-07-20 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure and there is the electronic equipment of this loudspeaker enclosure |
| CN107426656A (en) * | 2017-09-08 | 2017-12-01 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN107426657A (en) * | 2017-09-08 | 2017-12-01 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN107623886A (en) * | 2017-09-08 | 2018-01-23 | 广东欧珀移动通信有限公司 | Electroacoustic device and mobile terminal |
| CN108551639A (en) * | 2018-06-12 | 2018-09-18 | 歌尔股份有限公司 | Loud speaker module and portable terminal |
| WO2019047669A1 (en) * | 2017-09-08 | 2019-03-14 | Oppo广东移动通信有限公司 | Electroacoustic assembly, electroacoustic device and mobile terminal |
| WO2020258259A1 (en) * | 2019-06-28 | 2020-12-30 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2021000194A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2021174577A1 (en) * | 2020-03-05 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Sound generating device |
-
2015
- 2015-10-28 CN CN201520843664.4U patent/CN205142500U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101956A (en) * | 2016-07-20 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure and there is the electronic equipment of this loudspeaker enclosure |
| CN106101956B (en) * | 2016-07-20 | 2019-04-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure and electronic equipment with the loudspeaker enclosure |
| CN107426656A (en) * | 2017-09-08 | 2017-12-01 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN107426657A (en) * | 2017-09-08 | 2017-12-01 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN107623886A (en) * | 2017-09-08 | 2018-01-23 | 广东欧珀移动通信有限公司 | Electroacoustic device and mobile terminal |
| WO2019047669A1 (en) * | 2017-09-08 | 2019-03-14 | Oppo广东移动通信有限公司 | Electroacoustic assembly, electroacoustic device and mobile terminal |
| CN107426656B (en) * | 2017-09-08 | 2020-01-14 | Oppo广东移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN108551639A (en) * | 2018-06-12 | 2018-09-18 | 歌尔股份有限公司 | Loud speaker module and portable terminal |
| WO2020258259A1 (en) * | 2019-06-28 | 2020-12-30 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2021000194A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2021174577A1 (en) * | 2020-03-05 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Sound generating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 |