CN219046531U

CN219046531U - Bone-conduction microphone device

Info

Publication number: CN219046531U
Application number: CN202222027774.6U
Authority: CN
Inventors: 符文剑
Original assignee: Zhongshan Articom Electronic Technology Co ltd
Current assignee: Zhongshan Articom Electronic Technology Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2023-05-19
Anticipated expiration: 2032-08-02

Abstract

The utility model relates to the technical field of audio signal transmission and discloses a bone conduction microphone device which comprises a top cover, a shell copper pipe, a vibration sheet weighting block, a vibration sheet, a main circuit board PCBA and a signal output lead, wherein the top cover is positioned at one end of the shell copper pipe, the vibration sheet is positioned in the main circuit board PCBA, the vibration sheet weighting block is positioned on the outer wall of one side of the vibration sheet, the main circuit board PCBA is positioned on the outer wall of one side of the vibration sheet far away from the vibration sheet weighting block, the signal output lead is positioned on the outer wall of one side of the main circuit board PCBA, the main circuit board PCBA is electrically connected with the signal output lead, the shell copper pipe of the whole device is not sealed, air can circulate through a cavity in the shell copper pipe, a signal inlet end on the right side of the shell copper pipe is a loudspeaker sound inlet, loudspeaker sound enters a cavity pipeline in the shell copper pipe through the sound inlet, then is output from a sound outlet on the top cover, and finally the inner ear listens sound, so that the voice definition can be improved, and the cost can be reduced.

Description

Bone-conduction microphone device

Technical Field

The utility model relates to the technical field of audio signal transmission, in particular to a bone conduction microphone device.

Background

As is known, there are two general ways of propagating acoustic speech signals: the first is by non-contact air propagation; the second is propagation by vibration contact propagation. The bone conduction microphone belongs to the second contact type vibration transmission voice mode transmission. The bone conduction is adopted to transmit sound voice, so that parasitic interference of noise in the surrounding environment to voice signals can be greatly reduced, and the bone conduction device is particularly suitable for being used in a noisy environment. Such as subway, airplane, downtown, job site, KTV, etc. The disadvantage is that speech intelligibility is slightly worse than with airborne condenser and moving coil microphones. But is particularly used in special occasions.

There are also similar bone conduction microphones in the market at present, but there are few, but there are generally insufficient speech definitions, too complex process and high cost, so a bone conduction microphone device is needed.

Disclosure of Invention

The utility model aims to provide a bone conduction microphone device so as to solve the problems of insufficient definition, too complex process and higher cost in the voice definition in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bone leads microphone device, includes top cap, shell copper pipe, shake piece weighting piece, shake piece, main circuit board PCBA and signal output lead wire, the top cap is located the one end of shell copper pipe, shake piece is located the inside of main circuit board PCBA, shake the piece weighting piece and be located on one side outer wall of shake piece, main circuit board PCBA is located shake the piece and keep away from shake on one side outer wall of piece weighting piece, signal output lead wire is located on one side outer wall of main circuit board PCBA, just main circuit board PCBA and signal output lead wire electric connection.

Preferably, the top cover is respectively provided with a sound outlet.

Preferably, the vibration piece and the main circuit board PCBA are welded and fixed, and the welding surface of the vibration piece and the welding surface of the main circuit board PCBA are in the same horizontal plane.

Preferably, the signal output lead comprises an anode and a cathode, the anode wire is connected to the middle position of the main circuit board PCBA, and the cathode wire is welded to the outlet of the shell copper pipe and connected with the ground wire of the main circuit board PCBA.

Preferably, the copper pipe and the top cover are in adhesive connection with the copper pipe of the shell through glue.

The utility model has the technical effects and advantages that:

1. the shell copper pipe of whole device is not sealed, and the air can circulate through the cavity of shell copper pipe the inside, and the signal inlet on shell copper pipe right is loudspeaker sound inlet, and loudspeaker sound is through the interior cavity pipeline of inlet entering shell copper pipe the inside, then follow the sound hole output on the top cap again, and the sound is listened to the eardrum inner ear at last to can enough improve pronunciation definition, can reduce cost again.

2. The outlet end of the shell copper pipe is fixedly connected with the earplug front cover, and one end of the top cover is directly sleeved with the sponge earplug or the silica gel earplug, so that the in-ear earplug can be directly sleeved on the shell copper pipe of the bone conduction microphone to serve as a bone conduction sound signal transmission tie.

Drawings

FIG. 1 is a schematic diagram of the complete structure of the present utility model.

Fig. 2 is a schematic exploded view of the present utility model.

FIG. 3 is a schematic cross-sectional view of the vibration plate of the present utility model.

Figure 4 is a schematic cross-sectional view of the copper tube of the present utility model.

Fig. 5 is a schematic elevational view of the present utility model.

Fig. 6 is a schematic rear view of the present utility model.

Fig. 7 is a schematic cross-sectional view of the present utility model.

In the figure: 1. a top cover; 2. a copper tube of the shell; 3. a vibration plate weighting block; 4. a vibrating plate; 5. a main circuit board PCBA; 6. and a signal output lead.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a bone conduction microphone device as shown in figures 1-7, which comprises a top cover 1, a shell copper pipe 2, a vibration piece weighting block 3, a vibration piece 4, a main circuit board PCBA5 and a signal output lead 6, wherein the top cover 1 is positioned at one end of the shell copper pipe 2, sound signals conducted by earplugs are transmitted to the vibration piece 4 through the shell copper pipe 2, sound outlet holes are respectively formed in the top cover 1, loudspeaker sound enters a cavity pipeline of the shell copper pipe 2 through the sound inlet, then sound in the cavity pipeline is output from the sound outlet holes in the top cover 1, so that the voice definition is improved, the vibration piece 4 is positioned in the main circuit board PCBA5, the vibration piece 4 can be subjected to weak deformation according to the amplitude and the frequency of signal waves synchronously and can transmit the deformed signal waves to the internal circuit of the main circuit board PCBA5, the main circuit board PCBA5 is positioned on the outer wall of one side of the vibration piece 4, which is far away from the vibration piece weighting block 3, the signal output 6 is positioned on the outer wall of the main circuit board PCBA5, and finally the signal output lead 6 is connected with the main circuit board PCBA5 through the signal output lead 6, and the signal is electrically connected with the main circuit board PCBA5 through the analog lead 5.

In this embodiment, welded fastening between vibration piece 4 and the main circuit board PCBA5, and the welded surface of vibration piece 4 and the welded surface of main circuit board PCBA5 are at same horizontal plane, through carrying out the welding with vibration piece 4 and main circuit board PCBA5 to be favorable to guaranteeing that vibration piece 4 can be accurate and stable with deformation signal wave transmission for main circuit board PCBA5, and then conveniently carry out signal transmission.

In this embodiment, the signal output lead 6 includes an anode and a cathode, and the anode wire is connected to the middle position of the main circuit board PCBA5, the cathode wire is welded at the outlet of the copper tube 2 of the housing and connected to the ground wire of the main circuit board PCBA5, and the signal output lead 6 is beneficial to conveying the analog signal wave converted by the main circuit board PCBA5 to communication devices such as a mobile phone and a computer.

In this embodiment, copper pipe top cap 1 is pasted through glue and shell copper pipe 2 and is connected, makes top cap 1 can be fast and convenient be connected with shell copper pipe 2 through glue, and shell copper pipe 2 adopts the metallic copper preparation, is favorable to guaranteeing the output quality of signal.

The working principle of the utility model is as follows: when a person speaks, voice vibration signal waves are transmitted to inner ear cartilage of the person through bone vibration, weak voice signals are transmitted to a shell copper pipe 2 of the device through a silica gel ear plug sleeve or a sponge plug connected with the bone conduction microphone, the shell copper pipe 2 is transmitted to a vibration sheet 4, the vibration sheet 4 synchronously deforms slightly according to the amplitude and the frequency of the signal waves, the deformation signal waves are transmitted to an internal circuit of a PCBA5 of a main circuit board, the circuit is converted into analog electric signal waves, and finally the analog voice signal waves transmit signals to external connection equipment such as communication equipment of a mobile phone, an interphone, a computer and the like through a signal output lead 6, and the equipment further transmits voice.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.

Claims

1. A bone conduction microphone apparatus, characterized in that: including top cap (1), shell copper pipe (2), shake piece and weigh piece (3), shake piece (4), main circuit board PCBA (5) and signal output lead wire (6), top cap (1) are located the one end of shell copper pipe (2), shake piece (4) are located the inside of main circuit board PCBA (5), shake piece and weigh piece (3) are located on the outer wall of one side of shake piece (4), main circuit board PCBA (5) are located shake piece (4) keep away from shake piece and weigh on the outer wall of one side of piece (3), signal output lead wire (6) are located on the outer wall of one side of main circuit board PCBA (5), just main circuit board PCBA (5) and signal output lead wire (6) electric connection.

2. A bone conduction microphone apparatus as in claim 1 wherein: and the top cover (1) is respectively provided with a sound outlet.

3. A bone conduction microphone apparatus as in claim 1 wherein: the vibrating piece (4) and the main circuit board PCBA (5) are welded and fixed, and the welding surface of the vibrating piece (4) and the welding surface of the main circuit board PCBA (5) are in the same horizontal plane.

4. A bone conduction microphone apparatus as in claim 1 wherein: the signal output lead (6) comprises an anode and a cathode, the anode wire is connected to the middle position of the main circuit board PCBA (5), and the cathode wire is welded to the outlet of the shell copper tube (2) and connected with the ground wire of the main circuit board PCBA (5).

5. A bone conduction microphone apparatus as in claim 1 wherein: the copper pipe and the top cover (1) are connected with the shell copper pipe (2) in a pasting mode through glue.