Reflux-resisting welded digital electret microphone

An electret microphone and microphone technology, which is applied to electret electrostatic transducers, electrostatic transducer microphones and other directions, can solve problems such as short circuits, and achieve the effects of overcoming short circuits, simple installation and easy layout.

Inactive Publication Date: 2011-04-27
SHANDONG GETTOP ACOUSTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PCB of the reflow-resistant digital electret microphone must have 4 electrodes (mono-channel output digital signal) or 5 electrodes (two-channel output digital signal). 4 or 5 electrodes are arranged in the circle, and the electrode solder joints must be less than Φ0.6mm, and the distance between the solder joints is less than 0.2mm, so that it is easy for customers to cause a short circuit between electrodes when using it, which will affect the use

Method used

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  • Reflux-resisting welded digital electret microphone
  • Reflux-resisting welded digital electret microphone
  • Reflux-resisting welded digital electret microphone

Examples

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Embodiment Construction

[0014] As shown in Figures 1 and 2, the reflow-resistant digital electret microphone includes a microphone housing 1, a sound-to-electricity signal converter installed in the microphone housing, and the analog signal generated by the sound-to-electricity signal converter The A / D converter converted into digital signals, and the microphone printed circuit board 2 forming a closed space for installing microphone electronic components with the microphone housing 1, the outer surface of the microphone printed circuit board 2 is provided with a microphone output Conductive electrodes 31 for digital signals, the printed circuit board 2 is provided with a circuit board additional part 21 extending outward along the plane of the printed circuit board 2, and the printed circuit board 2 and the circuit board additional part 21 are integrated structure, the circuit board attachment part 21 is provided with a lead-out electrode 32 electrically connected to the conductive electrode 31 .

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Abstract

A digitalized electret microphone of reflow welding proof type is prepared as using microphone shell and microphone printed circuit board to form closed space for erecting electronic elements, arranging conductive electrode for outputting digital signal on surface of said circuit board, arranging additional portion of said circuit board along plane of said circuit board and extending additional portion towards outside, unifying said circuit board and said additional portion to be an integral unit and setting a leading-out electrode connected with said conductive electrode on said additional portion.

Description

technical field [0001] The invention relates to a digital microphone. Background technique [0002] Only two electrodes are needed on the printed circuit board (PCB) of the ordinary simulated reflow-resistant electret microphone, so when manufacturing products below Φ4mm, these two electrodes can be directly made in the circle of Φ2.8mm on the PCB, as shown in the figure 4. When the microphone is produced and used by customers, it can effectively isolate the two electrodes without short circuit. The PCB of the reflow-resistant digital electret microphone must have 4 electrodes (mono-channel output digital signal) or 5 electrodes (two-channel output digital signal). 4 or 5 electrodes are arranged in the circle, and the solder joints of the electrodes must be less than Φ0.6mm, and the distance between the solder joints is less than 0.2mm, so that it is easy for customers to cause a short circuit between electrodes when using it, which will affect the use. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R19/01H04R19/04
Inventor 赵笃仁
Owner SHANDONG GETTOP ACOUSTIC
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