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Method for reducing electric shock injuries, circuit and device

A grid power supply and mobile device technology, applied in the electrical field, can solve the problems of easy to cause electric shock, unable to protect the human body from contacting the neutral wire and live wire at the same time, so as to reduce electric shock damage, reduce current damage, and prevent internal burns.

Active Publication Date: 2017-05-03
南通齐创电气自动化工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current power grid generally uses AC higher than 36V for power supply. This method is easy to cause electric shock. Although there are protective facilities such as circuit breakers and leakage protectors, they cannot protect the human body from being in contact with the neutral wire and the live wire at the same time. There are many accidents where human beings come into contact with the neutral wire and the live wire at the same time, especially children often have electric accidents to children because of their playfulness and ignorance of relevant knowledge.

Method used

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  • Method for reducing electric shock injuries, circuit and device
  • Method for reducing electric shock injuries, circuit and device
  • Method for reducing electric shock injuries, circuit and device

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Embodiment 1, as figure 1 Embodiment 1, a design method of a power supply product, using a circuit to convert smooth AC power into a pulsed composite AC power supply with periodic power supply gaps, the period of the power supply gap is shorter than the period of AC. The output node OUT is connected to electrical appliances. S1 is a conversion device. There is a switch K1 in the conversion device. The on-off condition of K1 is controlled by the control terminal PK. When the PK terminal is high, S1 is disconnected. When the PK terminal is low, S1 is connected. The level of PK It is a periodic PWM signal, and the AC input node INT is connected to the composite AC output node OUT via S1. After conversion by the conversion device S1, the smooth AC becomes a composite AC with periodic power supply gaps, because the periodic power supply gap exists. The skin effect is increased, the current in the human skin is reduced, and the damage of AC to the human body is reduced.

Embodiment 2

[0053] Embodiment 2. On the basis of Embodiment 1, K1 is realized by using a semiconductor device, such as an IGBT.

Embodiment 3

[0054] Embodiment 3, as figure 2 , 3 , A kind of power supply system shown in 4, comprises accompanying drawing number description: No. 1 resistance (R2); No. 2 resistance (R42); No. 3 resistance (R5); No. 1 capacitor (C1); No. 2 Capacitor (C2); No. 1 optocoupler (U1); No. 2 optocoupler (U2); Time base chip (U3); No. 1 triode (Q4); No. 2 triode (Q41); No. 1 diode (D4); No. 2 diode (D6); No. 3 diode (D41); No. 4 diode (D61); Light bulb (L1); No. 1 potentiometer (RV4); No. 2 potentiometer (RV5) ; No. 1 AC power supply (mains).

[0055] The third pin of the first potentiometer is connected to the DC pin of the time base chip, the second pin of the second potentiometer is connected to the DC pin of the time base chip, and the first pin of the first potentiometer is connected to the DC pin of the time base chip. The DC pin is connected, the K pin of the second optocoupler is connected with the Q pin of the time base chip, the K pin of the first optocoupler is connected with the...

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Abstract

The invention relates to a method for reducing electric shock injuries, which is characterized in that pulse composite alternating current with a periodic power supply gap is adopted to perform electric energy supply, and the period of the power supply gap is less than the period of the alternating current. The invention further discloses a circuit and a device which have the above-mentioned technical scheme. Electric shock injuries can be reduced according to the method, and a new way of thinking is provided.

Description

technical field [0001] The invention relates to the electrical field, in particular to a method, circuit and device for reducing electric shock damage. [0002] technical background [0003] The current power grid generally uses AC higher than 36V for power supply. This method is easy to cause electric shock. Although there are protective facilities such as circuit breakers and leakage protectors, they cannot protect the human body from being in contact with the neutral wire and the live wire at the same time. There are many accidents where human beings come into contact with the neutral wire and the live wire at the same time, especially children often have accidents of electric shock to children because of their playfulness and ignorance of relevant knowledge. Contents of the invention [0004] The invention relates to a method, a circuit and a device for reducing electric shock injury, and provides a new design idea. [0005] 1.1, a kind of method for reducing electric ...

Claims

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Application Information

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IPC IPC(8): H02M5/22H03K4/92
CPCH02M5/22H03K4/92
Inventor 刘伟
Owner 南通齐创电气自动化工程有限公司