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CN-115022785-B - Bone conduction microphone

CN115022785BCN 115022785 BCN115022785 BCN 115022785BCN-115022785-B

Abstract

The invention provides a bone conduction microphone which comprises a shell, a dielectric material sheet, a conductive plate, a conductive ring, an insulating ring and a circuit board, wherein a first conductive ring is arranged on the circuit board, the dielectric material sheet is arranged at the bottom of the shell, the insulating ring is arranged above the dielectric material sheet along the inner wall of the shell, the bottom of the insulating ring is abutted with the dielectric material sheet, the conductive plate is arranged above the dielectric material sheet along the inner wall of the insulating ring and is electrically connected with the positive electrode of the dielectric material sheet, the conductive ring is arranged above the conductive plate along the inner wall of the insulating ring, the bottom of the conductive ring is abutted with the conductive plate and is electrically connected with the conductive ring, the circuit board is arranged at the top of the insulating ring and is fixedly connected with the shell, and the first conductive ring is abutted with the top end face of the conductive ring. The dielectric material sheet and the circuit board of the bone conduction microphone are not connected through wires, so that the bone conduction microphone is convenient to assemble, and conductive silica gel is arranged in the bone conduction microphone, so that the sensitivity of the bone conduction microphone can be adjusted.

Inventors

  • LIN YUTING
  • LU HAOHUA

Assignees

  • 深圳市奥多格科技有限公司

Dates

Publication Date
20260505
Application Date
20220630

Claims (7)

  1. 1. The bone conduction microphone is characterized by comprising a shell, a dielectric material sheet, a conductive plate, a conductive ring, an insulating ring and a circuit board, wherein a first conductive ring is arranged on the circuit board; the dielectric material sheet is arranged at the bottom of the shell, the insulating ring is arranged above the dielectric material sheet along the inner wall of the shell, the bottom of the insulating ring is abutted against the dielectric material sheet, the conducting plate is arranged above the dielectric material sheet along the inner wall of the insulating ring and is electrically connected with the positive electrode of the dielectric material sheet, the conducting ring is arranged above the conducting plate along the inner wall of the insulating ring, the bottom of the conducting ring is abutted against the conducting plate and is electrically connected with the conducting plate, the circuit board is arranged at the top of the insulating ring and is fixedly connected with the shell, and the first conducting ring is abutted against the top end face of the conducting ring; The bone conduction microphone further comprises one or more conductive silicone disposed between the conductive ring and the sheet of dielectric material; The number of the conductive silica gel sets is 2, and the bone conduction microphone comprises a first conductive silica gel, wherein the first conductive silica gel is arranged between the dielectric material sheet and the conductive plate; the bone conduction microphone further comprises a second conductive silicone disposed between the conductive plate and the conductive ring.
  2. 2. The bone conduction microphone of claim 1, wherein the outer diameters of the insulating ring and the sheet of dielectric material are equal.
  3. 3. The bone conduction microphone of claim 1, wherein the outer diameters of the conductive ring and the conductive plate are equal.
  4. 4. The bone conduction microphone according to claim 1, wherein a second conductive ring is further provided on the circuit board, and when the dielectric material sheet is mounted on the bottom of the housing, the negative electrode of the dielectric material sheet is electrically connected to the housing, and the circuit board is fixedly connected to the housing such that the second conductive ring and the housing form an electrical connection.
  5. 5. The bone conduction microphone of claim 1, wherein the circuit board is further provided with wire pads for soldering wires.
  6. 6. The bone conduction microphone of claim 1, wherein the first conductive silicone and the sheet of dielectric material have equal diameters, one face of the first conductive silicone being electrically connected to the positive electrode of the sheet of dielectric material, and the other face of the first conductive silicone being electrically connected to the conductive plate.
  7. 7. The bone conduction microphone of claim 1, wherein the second conductive silicone and the conductive plate are equal in diameter.

Description

Bone conduction microphone Technical Field The invention relates to the technical field of bone conduction, in particular to a bone conduction microphone. Background In the prior art, most microphones use gas as a conducting medium to achieve sound transmission. However, the microphone of the principle can not solve the interference of the external background sound source, can not filter the noise in the external environment in the noisy environment, and seriously affects the use effect in the noisy environment. With the progress of technology, a microphone for realizing sound transmission by utilizing a bone conduction mode well solves the problem of external interference, but the microphone has the following defects that a dielectric material sheet inside the existing bone conduction microphone is connected with a circuit board through wires, wires are required to be welded when the microphone is assembled, two ends of the wires are respectively fixedly connected with the circuit board and the dielectric material sheet, the electric connection is realized through the welding wires, the phenomenon of off-welding is easy to occur, the microphone is out of order, the welding circuit is time and labor-consuming, the assembly difficulty is increased, and the sensitivity of the existing bone conduction microphone cannot be adjusted. Disclosure of Invention The main object of the present invention is to propose a bone conduction microphone which can electrically connect the internal dielectric material sheet to the circuit board without using conductive wires and which can also adjust the sensitivity. In order to achieve the above purpose, the present invention is realized by the following technical scheme: The invention provides a bone conduction microphone, which comprises a shell, a dielectric material sheet, a conducting plate, a conducting ring, an insulating ring and a circuit board, wherein a first conducting ring is arranged on the circuit board; the dielectric material piece is installed the bottom of shell, the insulating ring is located along the inner wall of shell the dielectric material piece top, the bottom of insulating ring with dielectric material piece butt, the conducting plate is located along the inner wall of insulating ring the top of dielectric material piece and with the anodal formation electric connection of dielectric material piece, the conducting ring is located along the inner wall of insulating ring the top of conducting plate, the bottom of conducting ring with conducting plate butt and formation electric connection, the circuit board is located the top of insulating ring and with shell fixed connection, first conducting ring with the top terminal surface butt of conducting ring. Further, the outer diameters of the insulating ring and the dielectric material sheet are equal. Further, the outer diameters of the conductive ring and the conductive plate are equal. Further, a second conductive ring is further arranged on the circuit board, when the dielectric material sheet is installed at the bottom of the shell, the negative electrode of the dielectric material sheet is electrically connected with the shell, and the circuit board is fixedly connected with the shell and enables the second conductive ring to be electrically connected with the shell. Furthermore, the circuit board is also provided with a wire welding spot, and the wire welding spot is used for welding wires. Further, the bone conduction microphone may further comprise one or more conductive silicone disposed between the conductive ring and the sheet of dielectric material. Further, the number of the conductive silicone sets is 2, and the bone conduction microphone includes a first conductive silicone, which is disposed between the dielectric material sheet and the conductive plate. Further, the diameters of the first conductive silica gel and the dielectric material sheet are equal, one surface of the first conductive silica gel is electrically connected with the positive electrode of the dielectric material sheet, and the other surface of the first conductive silica gel is electrically connected with the conductive plate. Further, the bone conduction microphone further comprises a second conductive silicone disposed between the conductive plate and the conductive ring. Further, the diameters of the second conductive silica gel and the conductive plate are equal. The invention has the beneficial effects that: according to the bone conduction microphone, the first conductive ring is arranged on the circuit board and is abutted against the end face of the conductive ring, and then the conductive ring, the conductive plate and the dielectric material sheet are electrically connected, so that the circuit board and the dielectric material sheet are electrically connected, electric wires do not need to be welded, the bone conduction microphone is assembled only by being installed according to the process in sequence, time