CN216357228U - Microphone, bone conduction microphone and bone conduction earphone - Google Patents
Microphone, bone conduction microphone and bone conduction earphone Download PDFInfo
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- CN216357228U CN216357228U CN202122704445.6U CN202122704445U CN216357228U CN 216357228 U CN216357228 U CN 216357228U CN 202122704445 U CN202122704445 U CN 202122704445U CN 216357228 U CN216357228 U CN 216357228U
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- circuit board
- printed circuit
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- bone conduction
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Abstract
The utility model provides a microphone, a bone conduction microphone and a bone conduction earphone, wherein the microphone comprises a shell, the bottom of the shell is provided with a printed circuit board, the printed circuit board is provided with a sound hole, an MEMS (micro electro mechanical System) membrane covers the sound hole, the printed circuit board is provided with an ASIC (application specific integrated circuit) chip, and the ASIC chip is electrically connected with the MEMS membrane; the shell, the printed circuit board and the MEMS membrane form a rear cavity, at least one through hole is formed in the printed circuit board, and the rear cavity is communicated with the space outside the printed circuit board through the through hole. Bone conduction microphone, including the rubber sleeve, the rubber sleeve cover is in the above a printed circuit board's of microphone below, MEMS membrane, printed circuit board, rubber sleeve constitute the front chamber, the through-hole is with back chamber and front chamber intercommunication. The bone conduction microphone is provided with the through hole, the rear cavity is communicated with the front cavity through the through hole, and when compressed air in the rubber sleeve is vibrated, the definition of pronunciation is improved, and the surge noise is reduced. The utility model has simple structure, reduces the influence of noise and has excellent popularization and application values.
Description
Technical Field
The utility model relates to the field of microphones, in particular to a microphone, a bone conduction microphone and a bone conduction earphone.
Background
In the prior art, a general microphone is conducted by air and is open, and although good sound quality can be obtained, the most defects are that an external background sound source cannot be isolated, and environmental noise cannot be filtered in a conversation in a noisy environment, so that inconvenience is brought to a user. Compared with a microphone which utilizes air conduction to detect, the bone conduction microphone is attached to the head of a user, detects the vibration of the skull when the user produces the sound through the bone conduction, and has stronger anti-noise capability. However, the existing bone conduction microphone still has the problems of low pronunciation definition, wheezy flow sound and the like.
SUMMERY OF THE UTILITY MODEL
A first object of the present invention is to provide a microphone.
The utility model adopts the following technical scheme:
a microphone comprises a shell, wherein a printed circuit board is arranged at the bottom of the shell, a sound hole is formed in the printed circuit board, an MEMS membrane covers the sound hole, an ASIC chip is arranged on the printed circuit board, and the ASIC chip is electrically connected with the MEMS membrane; the shell, the printed circuit board and the MEMS membrane form a rear cavity, at least one through hole is formed in the printed circuit board, and the rear cavity is communicated with the space outside the printed circuit board through the through hole.
Aiming at the problems of low pronunciation definition, wheezy flow and the like of the conventional bone conduction microphone, the utility model provides a bone conduction microphone.
A bone conduction microphone comprises a rubber sleeve, wherein the rubber sleeve covers the lower portion of a printed circuit board of the microphone, an MEMS membrane, the printed circuit board and the rubber sleeve form a front cavity, and a rear cavity is communicated with the front cavity through a through hole.
A third object of the present invention is to provide a bone conduction headset.
A bone conduction earphone is provided with the bone conduction microphone.
The utility model has the beneficial effects that:
according to the microphone, the bone conduction microphone and the bone conduction earphone, the bone conduction microphone is provided with the through hole, the rear cavity is communicated with the front cavity through the through hole, and when compressed air in the rubber sleeve is vibrated, the definition of pronunciation is improved, and the surge noise is reduced. The utility model has simple structure, reduces the influence of noise and has excellent popularization and application values.
Drawings
Fig. 1 is a schematic structural diagram of a microphone according to the present invention.
Fig. 2 is a schematic structural diagram of a bone conduction microphone according to the present invention.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings:
example 1
Referring to fig. 1, a microphone includes a housing 1, a printed circuit board 2 disposed at the bottom of the housing, a sound hole 3 formed on the printed circuit board, and a MEMS membrane 4 covering the sound hole.
An ASIC chip 5 is arranged on the printed circuit board, and the ASIC chip 5 is electrically connected with the MEMS membrane 4.
The housing, printed circuit board and MEMS membrane form a back cavity 6.
At least one through-hole 7 is provided in the printed circuit board.
The position, the number and the size of the through holes 7 are adjusted according to actual needs so as to achieve good sounding effect.
The through hole communicates the rear cavity with a space outside the printed circuit board.
Example 2
Referring to fig. 2, a bone conduction microphone includes a rubber sleeve 8 covering a lower portion of a printed circuit board 2 of the microphone according to embodiment 1, and a front cavity 9 is formed by a MEMS film 4, the printed circuit board 2, and the rubber sleeve 8.
The rear cavity 6 is communicated with the front cavity 9 by a through hole formed in the printed circuit board.
When the compressed air in the rubber sleeve is vibrated, the arrangement of the through holes improves the definition of sound and reduces the surge noise.
Example 3
A bone conduction headset, wherein the bone conduction microphone of embodiment 2 is arranged on the bone conduction headset.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (3)
1. A microphone is characterized by comprising a shell, wherein the bottom of the shell is provided with a printed circuit board, the printed circuit board is provided with a sound hole, an MEMS membrane covers the sound hole, the printed circuit board is provided with an ASIC chip, and the ASIC chip is electrically connected with the MEMS membrane; the shell, the printed circuit board and the MEMS membrane form a rear cavity, at least one through hole is formed in the printed circuit board, and the rear cavity is communicated with the space outside the printed circuit board through the through hole.
2. A bone conduction microphone comprising a rubber boot covering under the printed circuit board of a microphone according to claim 1, the MEMS membrane, the printed circuit board, and the rubber boot forming a front chamber, the through hole communicating the rear chamber with the front chamber.
3. A bone conduction headset, characterized in that a bone conduction microphone as claimed in claim 2 is provided on the bone conduction headset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122704445.6U CN216357228U (en) | 2021-11-05 | 2021-11-05 | Microphone, bone conduction microphone and bone conduction earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122704445.6U CN216357228U (en) | 2021-11-05 | 2021-11-05 | Microphone, bone conduction microphone and bone conduction earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216357228U true CN216357228U (en) | 2022-04-19 |
Family
ID=81133883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122704445.6U Active CN216357228U (en) | 2021-11-05 | 2021-11-05 | Microphone, bone conduction microphone and bone conduction earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216357228U (en) |
-
2021
- 2021-11-05 CN CN202122704445.6U patent/CN216357228U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |