CN113411721A

CN113411721A - Array microphone

Info

Publication number: CN113411721A
Application number: CN202110564575.6A
Authority: CN
Inventors: 许峰明
Original assignee: Shenzhen Feng Jing Sheng Electronics Technology Co ltd
Current assignee: Shenzhen Feng Jing Sheng Electronics Technology Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-09-17

Abstract

The invention provides an array microphone, which comprises a bottom shell, a face shell, a first radio piece, a second radio piece and a circuit board, wherein the bottom shell and the face shell are buckled to form an annular groove and an installation groove which are not communicated with each other; the array microphone provided by the invention is provided with the annular groove and the mounting groove which are not communicated with each other, the first microphone and the second microphone are respectively and fixedly mounted in the annular groove, the loudspeaker is accommodated in the mounting groove, and the sound emitted by the loudspeaker is not directly transmitted to the first microphone and the second microphone, so that the first microphone and the second microphone can clearly receive sound, and the noise and the response in sound reception are greatly reduced.

Description

Array microphone

Technical Field

The invention relates to the field of audio equipment, in particular to an array type microphone.

Background

Current microphone not only has the function of radio reception, in order to satisfy consumer's user demand, still increase loudspeaker and realize audio playback function, current microphone includes the circuit board, the miaow head, loudspeaker and shell, form the installation cavity in the shell, the miaow head is installed on the circuit board, the circuit board is installed in the installation cavity, loudspeaker are also installed in the installation cavity, when loudspeaker broadcast audio frequency, because loudspeaker and miaow head all are located the installation cavity, the sound direct conduction that loudspeaker sent to the miaow head, and the sound that loudspeaker sent can form the echo in the installation cavity, it is unclear to lead to the miaow head to appear the radio reception, the radio reception exists the echo, there are 3 problems of noise in the radio reception.

Disclosure of Invention

In order to solve the above problems, the present invention provides an array microphone.

The invention is realized by the following technical scheme:

the invention provides an array microphone which comprises a bottom shell, a face shell, a first radio piece, a second radio piece and a circuit board, wherein the bottom shell and the face shell are buckled to form an annular groove and an installation groove which are not communicated with each other, the circuit board is positioned between the bottom shell and the face shell, the first radio piece and the second radio piece are respectively and fixedly installed in the annular groove, and the first radio piece and the second radio piece are respectively and electrically connected with the circuit board.

Furthermore, be equipped with a plurality of first miaow heads on the first radio piece, it is a plurality of first miaow head equidistance sets up, a plurality of first miaow head respectively with face-piece fixed connection.

Furthermore, a plurality of first sound through holes are formed in the face shell, the first sound through holes are communicated with the annular groove, and the first sound through holes are in one-to-one correspondence with the first microphones.

Furthermore, a plurality of second microphones are arranged on the second radio piece, the second microphones are arranged at equal intervals, and the second microphones are fixedly connected with the face shell respectively.

Furthermore, a plurality of second sound holes are formed in the face shell, the second sound holes are communicated with the annular groove, and the second sound holes are in one-to-one correspondence with the second microphones.

Furthermore, the first sound receiving piece and the second sound receiving piece are symmetrically arranged.

Furthermore, a first check ring is arranged in the bottom shell, a second check ring is arranged in the face shell, the bottom shell is buckled with the face shell, one side of the circuit board is abutted against the first check ring to form seamless connection, and the other side of the circuit board is abutted against the second check ring to form seamless connection.

Further, the array microphone further comprises a first annular gasket and a second annular gasket, the first annular gasket is located between the first retainer ring and the circuit board, and the second annular gasket is located between the second retainer ring and the circuit board.

Further, array microphone still includes loudspeaker, be equipped with first mounting hole on the circuit board, first mounting hole runs through the circuit board, loudspeaker accept in the mounting groove, loudspeaker run through first mounting hole and with circuit board fixed connection, loudspeaker with circuit board electricity is connected.

Furthermore, the face shell is further provided with a sound cavity and a through hole, the sound cavity is communicated with the mounting groove through the through hole, and the loudspeaker penetrates through the through hole and is partially accommodated in the sound cavity.

Further, the array microphone further comprises a cover plate, the cover plate is fixedly connected with the face shell and shields the sound cavity, and a third sound through hole communicated with the sound cavity is formed in the cover plate.

Further, the array microphone further comprises a battery, the battery is fixedly installed in the annular groove, and the battery is electrically connected with the circuit board.

Furthermore, the circuit board is provided with a Bluetooth module, a first AUX female seat, a second AUX female seat and a USB-C female seat, and the face shell is provided with positioning holes which correspond to the first AUX female seat, the second AUX female seat and the USB-C female seat one to one.

Furthermore, the bottom of the bottom shell is provided with an anti-skid ring, and the anti-skid ring protrudes out of the bottom shell.

The invention has the beneficial effects that:

the array microphone provided by the invention is provided with the annular groove and the mounting groove which are not communicated with each other, the first microphone and the second microphone are respectively and fixedly mounted in the annular groove, the loudspeaker is accommodated in the mounting groove, and the sound emitted by the loudspeaker is not directly transmitted to the first microphone and the second microphone, so that the first microphone and the second microphone can clearly receive sound, and the noise and the response in sound reception are greatly reduced.

Drawings

Fig. 1 is a schematic diagram of an internal structure of an array microphone according to the present invention;

fig. 2 is an exploded view of an array microphone of the present invention;

FIG. 3 is a schematic view of the assembly of the first and second sound receiving parts of the array microphone of the present invention;

fig. 4 is a perspective view of an array microphone of the present invention.

Detailed Description

In order to more clearly and completely explain the technical scheme of the invention, the invention is further explained with reference to the attached drawings.

Referring to fig. 1 to 4, the present invention provides an array microphone, which includes a bottom case 10, a face case 20, a first radio 30, a second radio 50 and a circuit board 40, wherein the bottom case 10 and the face case 20 are fastened to form an annular groove 60 and a mounting groove 70 that are not communicated with each other, the circuit board 40 is located between the bottom case 10 and the face case 20, the first radio 30 and the second radio 50 are respectively and fixedly mounted in the annular groove 60, and the first radio 30 and the second radio 50 are respectively and electrically connected to the circuit board 40.

Further, array microphone still includes loudspeaker 100, be equipped with first mounting hole 41 on the circuit board 40, first mounting hole 41 runs through circuit board 40, loudspeaker 100 is acceptd in mounting groove 70, loudspeaker 100 run through first mounting hole 41 and with circuit board 40 fixed connection, loudspeaker 100 with circuit board 40 electricity is connected.

In this embodiment, the annular groove 60 and the mounting groove 70 are not communicated with each other, the first sound receiving part 30 and the second sound receiving part 50 are respectively and fixedly mounted in the annular groove 60, the speaker 100 is accommodated in the mounting groove 70, the sound emitted by the speaker 100 is not directly transmitted to the first sound receiving part 30 and the second sound receiving part 50, the sound emitted by the speaker 100 is blocked and absorbed and then enters the annular groove 60, so that the volume of the sound emitted by the speaker 100 is greatly reduced when the sound enters the annular groove 60, the sound is further received clearly by the first microphone 31 and the second microphone 51, and the noise and the response in sound reception are greatly reduced.

Further, a plurality of first microphones 31 are disposed on the first sound receiving member 30, the first microphones 31 are equidistantly disposed, and the first microphones 31 are respectively and fixedly connected to the face housing 20.

Further, the front shell 20 is provided with a plurality of first sound holes 21, the first sound holes 21 are communicated with the annular groove 60, and the plurality of first sound holes 21 correspond to the plurality of first microphones 31 one to one.

Further, a plurality of second microphones 51 are disposed on the second sound receiving member 50, the plurality of second microphones 51 are disposed at equal intervals, and the plurality of second microphones 51 are respectively fixedly connected to the face housing 20.

Further, a plurality of second sound holes 22 are formed in the front shell 20, the second sound holes 22 are communicated with the annular groove 60, and the plurality of second sound holes 22 correspond to the plurality of second microphones 51 one to one.

Further, the first sound receiving member 30 and the second sound receiving member 50 are symmetrically disposed.

In this embodiment, the number of the first microphone 31 and the second microphone 51 is 3, the first microphone 31 and the second microphone 51 are all omnidirectional microphones, and the first sound receiving component 30 and the second sound receiving component 50 are symmetrically arranged to enable the first microphone 31 and the second microphone 51 to achieve sound receiving coverage of 360 degrees, so that the array microphone can receive sound at 360 degrees, and the sound receiving distance is greater than 3 meters.

In this embodiment, the annular groove 60 is not communicated with the mounting groove 70, the first microphone 31 and the second microphone 51 are respectively and fixedly mounted in the annular groove 60, the speaker 100 is accommodated in the mounting groove 70, the sound emitted by the speaker 100 is not directly transmitted to the first microphone 31 and the second microphone 51, the sound emitted by the speaker 100 is blocked and absorbed before entering the annular groove 60, so that the sound volume of the sound emitted by the speaker 100 is greatly reduced when entering the annular groove 60, the sound reception of the first microphone 31 and the second microphone 51 is clear, and the noise and the response during the sound reception are greatly reduced.

Further, be equipped with first retaining ring 11 in the drain pan 10, be equipped with second retaining ring 23 in the face-piece 20, drain pan 10 with face-piece 20 lock, circuit board 40 one side with first retaining ring 11 butt and form seamless connection, circuit board 40 opposite side with second retaining ring 23 butt and form seamless connection.

Further, the array microphone further includes a first annular gasket 80 and a second annular gasket 90, the first annular gasket 80 is located between the first retainer ring 11 and the circuit board 40, and the second annular gasket 90 is located between the second retainer ring 23 and the circuit board 40.

In the present embodiment, the first annular gasket 80 and the second annular gasket 90 are both made of EVA (ethylene vinyl acetate), and have a good sound absorption effect; the drain pan 10 with the lock of face-piece 20 forms fixed connection, the sound that loudspeaker 100 sent is by first retaining ring 11 with second retaining ring 23 shelters from, the sound that loudspeaker 100 sent is by first annular packing ring 80 with second annular packing ring 90 absorbs, just at last gets into annular groove 60 makes the sound that loudspeaker 100 sent gets into volume greatly reduces when annular groove 60.

In the present embodiment, the first annular gasket 80 eliminates a gap between the first retainer ring 11 and the circuit board 40, and the second annular gasket 90 eliminates a gap between the second retainer ring 23 and the circuit board 40.

Furthermore, the face shell 20 is further provided with a sound cavity 24 and a through hole 25, the sound cavity 24 is communicated with the mounting groove 70 through the through hole 25, and the loudspeaker 100 is partially accommodated in the sound cavity 24 through the through hole 25.

Further, the array microphone further includes a cover plate 110, the cover plate 110 is fixedly connected to the face shell 20 and shields the sound cavity 24, and a third sound through hole 111 communicated with the sound cavity 24 is formed in the cover plate 110.

In this embodiment, the sound emitted from the speaker 100 passes through the sound cavity 24 and the third sound through hole 111 in sequence, and is finally transmitted to the outside of the array microphone.

Further, the array microphone further includes a battery 120, the battery 120 is fixedly installed in the annular groove 60, and the battery 120 is electrically connected to the circuit board 40.

In this embodiment, the battery 120 is a rechargeable lithium battery, and when the array microphone is disconnected from an external power source, the array microphone can be powered by the battery 120.

Further, the circuit board 40 is provided with a bluetooth module 42, a first AUX female seat 43, a second AUX female seat 44 and a USB-C female seat 45, and the face shell 20 is provided with positioning holes 26 corresponding to the first AUX female seat 43, the second AUX female seat 44 and the USB-C female seat 45 one to one.

In this embodiment, the first AUX female seat 43 serves as an audio input port, and the second AUX female seat 44 serves as an audio output port; the battery 120 can be charged by connecting the USB-C female socket 45 with an external power source; the array microphone can form a wired connection with an external electronic device through the USB-C female socket 45, and the array microphone can form a Bluetooth wireless connection with the external electronic device through the Bluetooth module 42.

Further, the bottom of the bottom shell 10 is provided with an anti-slip ring 12, and the anti-slip ring 12 protrudes out of the bottom shell 10.

In this embodiment, the anti-slip ring 12 is made of a silica gel material, and the anti-slip ring 12 prevents slipping and reduces the influence of desktop vibration on the reception of the first microphone 31 and the second microphone 51.

Of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.

Claims

1. The utility model provides an array microphone, its characterized in that, array microphone includes drain pan, face-piece, first radio piece, second radio piece and circuit board, the drain pan with face-piece lock forms the ring channel and the mounting groove that do not communicate each other, the circuit board is located the drain pan with between the face-piece, first radio piece with second radio piece respectively fixed mounting in the ring channel, first radio piece with second radio piece respectively with the circuit board electricity is connected.

2. The array microphone of claim 1, wherein the first sound receiving member has a plurality of first microphones, the plurality of first microphones are equidistantly disposed, the plurality of first microphones are respectively fixedly connected to the front housing, the front housing has a plurality of first sound holes, the first sound holes are communicated with the annular groove, and the plurality of first sound holes are in one-to-one correspondence with the plurality of first microphones.

3. The array microphone of claim 1, wherein the second sound receiving member has a plurality of second microphones, the plurality of second microphones are equidistantly disposed, the plurality of second microphones are respectively fixedly connected to the front housing, the front housing has a plurality of second sound holes, the second sound holes are communicated with the annular groove, and the plurality of second sound holes are in one-to-one correspondence with the plurality of second microphones.

4. The array microphone of claim 1, wherein a first retaining ring is disposed in the bottom housing, a second retaining ring is disposed in the face housing, the bottom housing is fastened to the face housing, one side of the circuit board abuts against the first retaining ring and forms a seamless connection, and the other side of the circuit board abuts against the second retaining ring and forms a seamless connection.

5. The array microphone of claim 4, further comprising a first annular gasket and a second annular gasket, the first annular gasket being positioned between the first retainer ring and the circuit board, the second annular gasket being positioned between the second retainer ring and the circuit board.

6. The array microphone of claim 1, further comprising a speaker, wherein the circuit board is provided with a first mounting hole, the first mounting hole penetrates through the circuit board, the speaker is received in the mounting groove, the speaker penetrates through the first mounting hole and is fixedly connected to the circuit board, and the speaker is electrically connected to the circuit board.

7. The array microphone of claim 6, wherein the face housing further comprises a sound cavity and a through hole, the sound cavity is communicated with the mounting groove through the through hole, and the speaker is partially received in the sound cavity through the through hole.

8. The array microphone of claim 7, further comprising a cover plate fixedly connected to the front housing and covering the sound cavity, wherein the cover plate is provided with a third sound through hole communicating with the sound cavity.

9. The array microphone of claim 1, wherein the circuit board is provided with a bluetooth module, a first AUX female socket, a second AUX female socket, and a USB-C female socket, and the face housing is provided with positioning holes corresponding to the first AUX female socket, the second AUX female socket, and the USB-C female socket one to one.

10. The array microphone of claim 1, wherein the bottom of the bottom housing is provided with an anti-slip ring, and the anti-slip ring protrudes out of the bottom housing.