CN202799113U - Bone conduction microphone - Google Patents
Bone conduction microphone Download PDFInfo
- Publication number
- CN202799113U CN202799113U CN 201220368886 CN201220368886U CN202799113U CN 202799113 U CN202799113 U CN 202799113U CN 201220368886 CN201220368886 CN 201220368886 CN 201220368886 U CN201220368886 U CN 201220368886U CN 202799113 U CN202799113 U CN 202799113U
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- Prior art keywords
- coil
- bone
- conduction microphone
- yoke
- boss
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Abstract
The utility model discloses a bone conduction microphone, comprising a magnet yoke, a magnetic steel and an elastic sheet assembled on the magnet yoke, and a mass block hanging over the magnet yoke through the elastic sheet. A boss is formed by the extension of mass block toward one side of the magnet yoke; the bone conduction microphone also comprises a coil; and the coil is arranged surrounding the boss. According to the bone conduction microphone provided in the utility model, the coil is arranged surrounding the boss formed by the extension of mass block, when the coil is powered on, the boss plays the role of an iron core in the coil, the intensity of the dynamic magnetic field generated by the coil is reinforced, simultaneously, leakage of the dynamic magnetic field is reduced, the mass block fully utilizes the dynamic magnetic field generated by the coil, the intensity of the magnetic field on the mass block is reinforced, and thereby the sensitivity of the bone conduction microphone is enhanced.
Description
[technical field]
The utility model relates to a kind of transducer, relates in particular to the bone-conduction microphone in a kind of transducer.
[background technology]
The bone-conduction microphone of correlation technique, it comprises yoke, assembly coil, magnet steel and the shell fragment on yoke and the mass that is suspended in the yoke top by shell fragment, deriving on the yoke has a projection, and described coil is sheathed to be immobilizated in described projection, and described magnet steel is arranged at all sides of coil.
Under operating state not, magnet steel attracts mass, is issued to standing balance in the effect of shell fragment, and coil produces dynamic magnetic field after coil electricity, and when this dynamic magnetic field acted on mass under the standing balance, mass can vibrate thereupon.The dynamic magnetic field that the coil of the bone-conduction microphone of correlation technique produces is owing to air leak, and mass can't take full advantage of the dynamic magnetic field that coil produces, and the magnetic field intensity on the mass is restricted, and has restricted the sensitivity of bone-conduction microphone.
Therefore, be necessary to provide a kind of new technical scheme to overcome defects in fact.
[utility model content]
The purpose of this utility model provides the better bone-conduction microphone of a kind of sensitivity.
The purpose of this utility model is achieved in that
A kind of bone-conduction microphone, described bone-conduction microphone comprises yoke, assembly magnet steel and shell fragment and the mass that is suspended in described yoke top by described shell fragment on described yoke, described mass derives boss in its side towards yoke, described bone-conduction microphone also comprises coil, the described boss setting of described coil encircling.
Preferably, described coil is immobilizated on the described yoke, and described boss extend in the described coil.
Preferably, described coil is immobilizated on the described mass, and described coil is sheathed on the described boss.
Preferably, described yoke comprises diapire and the sidewall that extends upward from described diapire, and described shell fragment comprises body and from the downward extended weld tabs of described body, described weld tabs fixing is at least part of outer surface that is overlapped in described sidewall also.
Preferably, described magnet steel is arranged on all sides of described coil.
Preferably, described magnet steel is arranged on the below of described coil.
Preferably, described bone-conduction microphone also comprises the circuit board that is positioned at described yoke below, described coil is electrically connected with extraneous by this circuit board, the second weld part that described circuit board is provided with the first weld part and arranges and be electrically connected with described the first weld part interval, described the first weld part and the second weld part are used for respectively welding coil lead and outer lead, and described bone-conduction microphone comprises that also glue layer covers described the first weld part and the second weld part.
The utlity model has following advantage: the boss setting that the coil encircling mass of the bone-conduction microphone that the utility model provides is derived, described boss is equivalent to the iron core in the coil after coil electricity, strengthened the intensity by the dynamic magnetic field of coil generation, reduced simultaneously the leakage of dynamic magnetic field, mass takes full advantage of the dynamic magnetic field that coil produces, thereby the magnetic field intensity on the mass is strengthened and strengthened the sensitivity of bone-conduction microphone.
[description of drawings]
The three-dimensional exploded view of the first embodiment of the bone-conduction microphone that Fig. 1 provides for the utility model;
Stereogram behind the first embodiment separation gel water layer of the bone-conduction microphone that Fig. 2 provides for the utility model;
The stereogram of the first embodiment of the bone-conduction microphone that Fig. 3 provides for the utility model;
Fig. 4 is along the cutaway view of A-A line among Fig. 3;
The stereogram of the second embodiment of the bone-conduction microphone that Fig. 5 provides for the utility model;
Fig. 6 is along the cutaway view of B-B line among Fig. 5;
The stereogram of the 3rd embodiment of the bone-conduction microphone that Fig. 7 provides for the utility model;
Fig. 8 is along the cutaway view of C-C line among Fig. 7.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is elaborated.
As shown in Figures 1 to 4, the bone-conduction microphone 100 of the first embodiment that provides for the utility model, it comprises yoke 15, magnet steel 14 and the shell fragment 12 of assembly on described yoke 15, and the mass 11 that is suspended in described yoke top by described shell fragment 12, described mass 11 derives boss 110 in its side towards yoke 15, described bone-conduction microphone 100 also comprises coil 13, described coil 13 arranges around described boss 110, described yoke 15 comprises diapire 150 and the sidewall 151 that extends upward from described diapire 150, described shell fragment 12 comprises body 120 and from described body 120 downward extended weld tabs 121, described weld tabs 121 fixings and at least part of outer surface that is overlapped in described sidewall 151, described coil 13 is immobilizated on the described mass 11, described coil 13 is sheathed on the described boss 110, and described magnet steel 14 is arranged on the diapire 150 of yoke 15 and places the below of described coil 13.Described bone-conduction microphone 100 also comprises the circuit board 16 that is positioned at described yoke 15 belows, described coil 13 is electrically connected with extraneous by this circuit board 16, the second weld part 162 that described circuit board 16 is provided with the first weld part 161 and arranges and be electrically connected with described the first weld part 161 intervals, described the first weld part 161 and the second weld part 162 are used for respectively welding coil lead and outer lead, and described bone-conduction microphone 100 comprises that also glue layer 17 covers described the first weld part 161 and the second weld part 162.
As shown in Figure 5 and Figure 6, the bone-conduction microphone 200 of the second embodiment that provides for the utility model, the places different from the bone-conduction microphone 100 of the first embodiment are: the bone-conduction microphone 200 of the second embodiment comprises yoke 25, magnet steel 24 and the shell fragment 22 of assembly on described yoke 25, and the mass 21 that is suspended in described yoke 25 tops by described shell fragment 22, described mass 21 derives boss 210 in its side towards yoke 25, described bone-conduction microphone 200 also comprises coil 23, described coil 23 arranges around described boss 210, described yoke 25 comprises diapire 250 and the sidewall 251 that extends upward from described diapire 250, described shell fragment 22 comprises body 220 and from described body 220 downward extended weld tabs 221, described weld tabs 221 fixings and at least part of outer surface that is overlapped in described sidewall 251, described coil 23 is immobilizated on the diapire 250 of described yoke 25, described boss 210 extend in the described coil 23, and described magnet steel 24 assembly are on the diapire 250 of yoke 25 and place all sides of described coil 23.
As shown in Figure 7 and Figure 8, the bone-conduction microphone 300 of the 3rd embodiment that provides for the utility model, the places different from the bone-conduction microphone 100 of the first embodiment are: the bone-conduction microphone 300 of the 3rd embodiment comprises yoke 35, magnet steel 34 and the shell fragment 32 of assembly on described yoke 35, and the mass 31 that is suspended in described yoke 35 tops by described shell fragment 32, described mass 31 derives boss 310 in its side towards yoke 35, described bone-conduction microphone 300 also comprises coil 33, described coil 33 arranges around described boss 310, described yoke 35 comprises diapire 350 and the sidewall 351 that extends upward from described diapire 350, described shell fragment 32 comprises body 320 and from described body 320 downward extended weld tabs 321, described weld tabs 321 fixings and at least part of outer surface that is overlapped in described sidewall 351, described coil 33 is immobilizated on the described mass 31, described coil 33 is sheathed on the described boss 310, and described magnet steel 34 assembly are on the diapire 350 of yoke 35 and place all sides of described coil 33.
The bone-conduction microphone that the utility model provides is under operating state not, magnet steel attracts mass, effect at shell fragment is issued to standing balance, coil produces dynamic magnetic field after coil electricity, when this dynamic magnetic field acts on mass under the standing balance, mass can vibrate thereupon, thereby realizes that the signal of telecommunication is transaudient to the transformation realization of vibration signal.
The bone-conduction microphone that the utility model provides is compared to correlation technique, the boss setting that the coil encircling mass is derived, described boss is equivalent to the iron core in the coil after coil electricity, strengthened the intensity by the dynamic magnetic field of coil generation, reduced simultaneously the leakage of dynamic magnetic field, mass takes full advantage of the dynamic magnetic field that coil produces, strengthened the sensitivity of bone-conduction microphone thereby the magnetic field intensity on the mass strengthens, the bone-conduction microphone that while the utility model provides can also reduce resonance frequency.
The shape of the bone-conduction microphone that the utility model provides is not limited to the square bone-conduction microphone that discloses such as accompanying drawing, can also for such as other shapes of circular bone-conduction microphone etc.The welding manner that discloses as in three kinds of execution modes that provide also is provided the group mode of shell fragment and yoke, can also adopt other feasible methods.
Above-described only is execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (7)
1. bone-conduction microphone, it is characterized in that: described bone-conduction microphone comprises yoke, assembly magnet steel and shell fragment and the mass that is suspended in described yoke top by described shell fragment on described yoke, described mass derives boss in its side towards yoke, described bone-conduction microphone also comprises coil, the described boss setting of described coil encircling.
2. bone-conduction microphone according to claim 1, it is characterized in that: described coil is immobilizated on the described yoke, and described boss extend in the described coil.
3. bone-conduction microphone according to claim 1, it is characterized in that: described coil is immobilizated on the described mass, and described coil is sheathed on the described boss.
4. bone-conduction microphone according to claim 1, it is characterized in that: described yoke comprises diapire and the sidewall that extends upward from described diapire, described shell fragment comprises body and from the downward extended weld tabs of described body, described weld tabs fixing is at least part of outer surface that is overlapped in described sidewall also.
5. according to claim 2 or 3 described bone-conduction microphones, it is characterized in that: described magnet steel is arranged on all sides of described coil.
6. bone-conduction microphone according to claim 3, it is characterized in that: described magnet steel is arranged on the below of described coil.
7. bone-conduction microphone according to claim 1, it is characterized in that: described bone-conduction microphone also comprises the circuit board that is positioned at described yoke below, described coil is electrically connected with extraneous by this circuit board, the second weld part that described circuit board is provided with the first weld part and arranges and be electrically connected with described the first weld part interval, described the first weld part and the second weld part are used for respectively welding coil lead and outer lead, and described bone-conduction microphone comprises that also glue layer covers described the first weld part and the second weld part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220368886 CN202799113U (en) | 2012-07-27 | 2012-07-27 | Bone conduction microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220368886 CN202799113U (en) | 2012-07-27 | 2012-07-27 | Bone conduction microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202799113U true CN202799113U (en) | 2013-03-13 |
Family
ID=47826279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220368886 Expired - Fee Related CN202799113U (en) | 2012-07-27 | 2012-07-27 | Bone conduction microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202799113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172544A (en) * | 2017-05-02 | 2017-09-15 | 瑞声科技（南京）有限公司 | Vibrator and electronic installation |
-
2012
- 2012-07-27 CN CN 201220368886 patent/CN202799113U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172544A (en) * | 2017-05-02 | 2017-09-15 | 瑞声科技（南京）有限公司 | Vibrator and electronic installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170504 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Patentee after: AAC TECHNOLOGIES Pte. Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Co-patentee before: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181031 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Patentee after: AAC TECHNOLOGIES Pte. Ltd. Address before: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Patentee before: AAC TECHNOLOGIES Pte. Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |