A Judging Microphone Case Leakage and Protection System

A technology of a microphone and a protection system, applied in the direction of automatic disconnection of emergency protection devices, electrical components, circuit devices, etc., can solve the problems of human injury, death, leakage of microphones, etc.

Active Publication Date: 2021-06-04
SHENZHEN ZHIMO TECHNOLOGY CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The microphone is an indispensable tool for people to sing and entertain. When the circuit problem often causes the microphone to leak electricity, because sometimes the leakage current is small, people cannot feel the current at the first time and cannot detect the leakage. When the leakage is detected, the arm has already Paralysis cannot take effective protective measures, thereby causing harm to the human body, and may cause death in severe cases. Therefore, the present invention invents a method of detecting the leakage of the microphone chassis and using the leakage of the microphone chassis to disconnect the power supply of the microphone when the power protection circuit is activated. system

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  • A Judging Microphone Case Leakage and Protection System

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Embodiment Construction

[0019] A leakage protection system for judging a microphone case, including a leakage protection circuit, a processor, an electromagnetic coil, and a power control device connected to the processor through an interface, the leakage protection circuit includes a relay and a voltage sensor; the processor obtains the metal shell of the chassis The voltage on the microphone shell and the voltage on the microphone shell. When the leakage protection circuit starts, the relay is controlled by calculating the length of time and the voltage value. The processor receives the voltage of the microphone shell and judges it. When the voltage value is greater than the set threshold When the power supply of the microphone is controlled by the electromagnetic coil to lose power, the processor judges the voltage on the metal casing and the voltage on the microphone casing, and when the two voltage values ​​reach a certain threshold, the power control device is activated through the interface.

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Abstract

The invention discloses a system for judging the leakage of a microphone case and a protection system, a system for judging a leakage of a microphone case and a protection system, comprising a leakage starting circuit, a processor, an electromagnetic coil and a power control device connected to the processor through an excuse, the leakage starting circuit Including a relay and a voltage sensor, the processor controls the relay by obtaining the voltage on the metal casing of the chassis and the voltage on the microphone casing, and calculates the length of time and the voltage value, and the processor receives the voltage of the microphone casing and makes a judgment, When the voltage value is greater than the set threshold value, the power supply of the microphone is controlled by the electromagnetic coil to lose power, and the processor judges the voltage on the metal casing and the voltage on the microphone casing, and when the two voltage values ​​reach a certain threshold value, the power supply is started through the interface The control device, the system leaks electricity through the metal casing of the chassis when the power supply starts the protection circuit so as to prevent electric shock.

Description

technical field [0001] The invention relates to a protection system, in particular to a system for judging electric leakage of a microphone case and a protection system. Background technique [0002] The microphone is an indispensable tool for people to sing and entertain. When the circuit problem often causes the microphone to leak electricity, because sometimes the leakage current is small, people cannot feel the current at the first time and cannot detect the leakage. When the leakage is detected, the arm has already Paralysis cannot take effective protective measures, thereby causing harm to the human body, and may cause death in severe cases. Therefore, the present invention invents a method of detecting the leakage of the microphone chassis and using the leakage of the microphone chassis to disconnect the power supply of the microphone when the power protection circuit is activated. system. Contents of the invention [0003] The purpose of the present invention is t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00H04R1/08H02H3/32
CPCH02H3/32H04R1/083H04R3/007
Inventor 劳加斌吴伟庭
Owner SHENZHEN ZHIMO TECHNOLOGY CO LTD
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