A conference microphone for a fixed position operator

Abstract

The utility model provides a kind of fixed conference pickup of seat, it is related to pickup field, comprising: shell, the side of shell is equipped with audio interface and power interface, and the bottom of shell is equipped with support foot, and the top of shell is equipped with sound hole, the inside of shell is equipped with main circuit board, and signal processing module, audio output unit, power management module and microphone unit are equipped on main circuit board, audio output unit is located in the inside of sound hole, the upside of shell is equipped with dustproof assembly, and dustproof assembly includes knob rotationally connected in shell shell wall, the outside of knob is connected with dustproof plate by connecting rod, while dustproof plate is slidably attached on the surface of shell. The utility model has the effect of dustproof and moistureproof when not using, and audio interface and mac array are connected conveniently.

Description

Technical Field

[0001] This utility model relates to the field of microphone technology, specifically to a seated fixed conference microphone. Background Technology

[0002] A microphone, also known as a monitoring microphone, is a device used to collect ambient sound and transmit it to backend equipment. It consists of a microphone and audio amplification circuitry. Microphones are generally divided into digital and analog microphones. A digital microphone is a sound sensing device that uses a digital signal processing system to convert analog audio signals into digital signals and perform corresponding digital signal processing. An analog microphone simply amplifies the sound collected by the microphone using ordinary analog circuitry. Microphones are divided into three-wire and four-wire systems. In a three-wire microphone, red generally represents the positive power supply terminal, white represents the positive audio terminal, and black represents the negative signal and power supply terminal (common ground). In a four-wire microphone, red generally represents the positive power supply terminal, white represents the positive audio terminal, and the negative audio terminal and negative power supply terminal are separate. Microphone products are usually divided into active and passive types; according to performance, there are microphones for vocal guitars and microphones for surveillance cameras.

[0003] In existing digital conference microphones, they are typically fixed to or embedded in the desktop. The audio interface of the microphone is located at the bottom of the microphone, and it is led out from under the desktop to connect to the microphone array, which is inconvenient for plugging in. Secondly, the microphone housing with built-in audio output has sound holes, which allow dust or moisture in the air to easily enter the microphone when it is not in use, causing damage to the internal electronic components. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, a fixed conference microphone for seated workers is provided to solve the problems mentioned in the background.

[0005] To achieve the above objectives, a seated fixed conference microphone is provided, comprising: a housing, wherein an audio interface and a power interface are provided on the side of the housing, a support foot is provided at the bottom of the housing, and a sound hole is provided at the top of the housing; a main circuit board is provided inside the housing, and a signal processing module, an audio output unit, a power management module, and a microphone unit are provided on the main circuit board; the audio output unit is located inside the sound hole; a dustproof component is provided on the upper side of the housing, and the dustproof component includes a knob rotatably connected to the housing wall; a dustproof plate is connected to the outside of the knob via a connecting rod, and the dustproof plate slides against the surface of the housing.

[0006] Furthermore, the power interface is a USB interface, and the power management module is electrically connected to the power interface through the main circuit board.

[0007] Furthermore, the audio interface is set as an EBU interface, and the audio interface is electrically connected to the microphone unit through the main circuit board.

[0008] Furthermore, the support feet are located at the four corners of the bottom of the outer casing, and the support feet are made of rubber.

[0009] Furthermore, the sound hole is designed in a fan shape, and magnetic material is provided near the edge of the outer shell. The sound hole is also symmetrical about the center of the knob.

[0010] Furthermore, the lower end of the knob is connected to a rotating shaft, and the lower end of the rotating shaft is connected to a limiting block. At the same time, the rotating shaft is rotatably connected to the shell wall of the outer casing, and the limiting block is rotatably fitted against the top inner shell wall of the outer casing.

[0011] Furthermore, the dustproof plate is designed with a fan-shaped structure, and the area of ​​the dustproof plate is larger than the sound hole. At the same time, a magnetic block is provided on the lower side of the outer edge of the dustproof plate.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. When in use, after the outer shell is fixed, the array microphone and power supply are connected through the audio interface and power interface on the side of the outer shell, respectively, which facilitates wiring and plugging and unplugging. The microphone unit collects the external sound, which is processed by the signal processing module (filtering noise and amplifying) and then sent to the audio output unit. The sound is then played out through the speaker included in the audio output unit and released through the sound hole.

[0014] 2. When the microphone is in use, rotate the knob to open the dust cover and release the sound hole. When the microphone is not in use, rotate the knob to rotate the dust cover to the area of ​​the sound hole, covering the sound hole area. At the same time, the magnetic stick and magnetic material attract each other to fix the position of the dust cover, thereby preventing dust and moisture from the sound hole and protecting the main circuit board inside the microphone. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the lower structure of the pickup in an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the upper structure of the pickup in an embodiment of the present utility model.

[0017] Figure 3 This is a schematic cross-sectional view of the pickup structure according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the pickup principle structure according to an embodiment of the present utility model.

[0019] In the diagram: 1. Housing; 11. Audio interface; 12. Power interface; 13. Support foot; 14. Sound hole; 15. Main circuit board; 16. Signal processing module; 17. Audio output unit; 18. Power management module; 19. Microphone unit; 2. Dustproof component; 21. Knob; 22. Dustproof plate; 23. Connecting rod; 24. Magnetic block; 25. Rotating shaft; 26. Limiting block. Detailed Implementation

[0020] Reference Figures 1 to 4 As shown, this utility model provides a seated fixed conference microphone, including: a housing 1, an audio interface 11 and a power interface 12 on the side of the housing 1, a support foot 13 at the bottom of the housing 1, and a sound hole 14 at the top of the housing 1. The housing 1 has a main circuit board 15 inside, and a signal processing module 16, an audio output unit 17, a power management module 18 and a microphone unit 19 are provided on the main circuit board 15. The audio output unit 17 is located inside the sound hole 14. The upper side of the housing 1 has a dustproof component 2, and the dustproof component 2 includes a knob 21 rotatably connected to the housing wall of the housing 1. The outer side of the knob 21 is connected to a dustproof plate 22 through a connecting rod 23, and the dustproof plate 22 slides against the surface of the housing 1.

[0021] In this embodiment, the outer shell 1, along with the inner and outer structures and the dustproof component 2, constitute the main structure of the seated fixed conference microphone involved in this application.

[0022] Specifically, the signal processing module 16, audio output unit 17, power management module 18, and microphone unit 19 on the main circuit board 15 are consistent with the functions and principles of the relevant components involved in digital microphones in the prior art.

[0023] The outer shell 1 is a hollow rectangular box structure made of ABS material and silicone.

[0024] The audio interface 11 can be configured with multiple sets as needed to connect to the microphone array.

[0025] The audio output unit 17 is electrically connected to a speaker built into the housing 1, and the speaker is located below the sound hole 14.

[0026] like Figure 1 , Figure 2 and Figure 3In the middle, the power interface 12 is set as a USB interface, and the power management module 18 is electrically connected to the power interface 12 through the main circuit board 15. The audio interface 11 is set as an EBU interface, and the audio interface 11 is electrically connected to the microphone unit 19 through the main circuit board 15. The support feet 13 are located at the four corners of the bottom of the shell 1, and the support feet 13 are made of rubber. The sound hole 14 is set as a fan-shaped structure, and the sound hole 14 is provided with magnetic material near the edge of the shell 1. At the same time, the sound hole 14 is symmetrical about the center of the knob 21.

[0027] Specifically, the microphone unit 19 receives external sounds (sounds collected by the microphone array) and then transmits them to the signal processing module 16 for noise filtering and amplification.

[0028] Specifically, the outer shell 1 achieves shock absorption and anti-slip effect through the support feet 13 at the bottom. At the same time, the outer shell 1 can also be directly fixed to the conference room table by adhesive or screws.

[0029] Specifically, the magnetic material is made of iron and is embedded inside the shell wall of the outer shell 1.

[0030] like Figure 2 and Figure 3 In the middle, the lower end of the knob 21 is connected to the rotating shaft 25, and the lower end of the rotating shaft 25 is connected to the limiting block 26. At the same time, the rotating shaft 25 is rotatably connected to the shell wall of the outer shell 1, and the limiting block 26 is rotatably attached to the top inner shell wall of the outer shell 1. The dustproof plate 22 is designed as a fan-shaped structure, and the area of ​​the dustproof plate 22 is larger than the sound hole 14. At the same time, a magnetic block 24 is provided on the lower side of the outer edge of the dustproof plate 22.

[0031] Specifically, the dustproof plate 22 also has two sets of symmetrical knobs 21, and the bottom edge of the dustproof plate 22 is provided with a rubber sealing strip to further prevent dust and moisture.

[0032] Specifically, the magnetic block 24 is a magnet embedded in the underside of the dustproof plate 22. When the dustproof plate 22 rotates to the area of ​​the sound hole 14 and completely covers it, the magnetic block 24 is attracted to the magnetic material.

[0033] In use, after the outer casing is fixed, the audio interface and power interface on the side of the casing are used to connect the array microphone and power supply respectively, which is convenient for wiring and plugging and unplugging. The microphone unit collects the external sound, which is processed by the signal processing module (filtering noise and amplifying) and then sent to the audio output unit. The sound is then played out through the speaker in the audio output unit and released through the sound hole. When the pickup is in use, the dust cover is rotated open by turning the knob to release the sound hole. When the pickup is not in use, the dust cover is rotated to the area of ​​the sound hole by turning the knob to cover the sound hole area. At the same time, the magnetic stick and magnetic material attract each other to fix the position of the dust cover, thereby protecting the sound hole from dust and moisture and protecting the main circuit board inside the pickup.

[0034] The present invention provides a seated fixed conference microphone that effectively solves the problems mentioned in the background technology. It achieves a feature that facilitates connection of the audio interface to the microphone array and provides dust and moisture protection when not in use, based on the existing seated fixed conference microphone technology.

Claims

1. A seated fixed conference microphone, comprising: The outer casing (1) is characterized in that: the side of the outer casing (1) is provided with an audio interface (11) and a power interface (12), and the bottom of the outer casing (1) is provided with a support foot (13), and the top of the outer casing (1) is provided with a sound hole (14). The interior of the outer casing (1) is provided with a main circuit board (15), and the main circuit board (15) is provided with a signal processing module (16), an audio output unit (17), a power management module (18) and a microphone unit (19). The audio output unit (17) is located inside the sound hole (14). The upper side of the outer casing (1) is provided with a dustproof component (2), and the dustproof component (2) includes a knob (21) rotatably connected to the shell wall of the outer casing (1). The outer side of the knob (21) is connected to a dustproof plate (22) through a connecting rod (23), and the dustproof plate (22) slides against the surface of the outer casing (1).

2. The fixed conference microphone according to claim 1, characterized in that, The power interface (12) is configured as a USB interface, and the power management module (18) is electrically connected to the power interface (12) through the main circuit board (15).

3. A seated fixed conference microphone according to claim 1, characterized in that, The audio interface (11) is set as an EBU interface, and the audio interface (11) is electrically connected to the microphone unit (19) through the main circuit board (15).

4. A seated fixed conference microphone according to claim 1, characterized in that, The support feet (13) are located at the four corners of the bottom of the outer shell (1), and the support feet (13) are made of rubber.

5. A seated fixed conference microphone according to claim 1, characterized in that, The sound hole (14) is designed as a fan-shaped structure, and magnetic material is provided at the edge of the sound hole (14) near the outer shell (1). At the same time, the sound hole (14) is symmetrical about the center of the knob (21).

6. A seated fixed conference microphone according to claim 1, characterized in that, The lower end of the knob (21) is connected to a rotating shaft (25), and the lower end of the rotating shaft (25) is connected to a limiting block (26). At the same time, the rotating shaft (25) is rotatably connected to the shell wall of the outer shell (1), and the limiting block (26) is rotatably attached to the top inner shell wall of the outer shell (1).

7. A seated fixed conference microphone according to claim 1, characterized in that, The dustproof plate (22) is designed in a fan shape, and the area of ​​the dustproof plate (22) is larger than the sound hole (14). At the same time, a magnetic block (24) is provided on the lower side of the outer edge of the dustproof plate (22).

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