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Method and device for preventing reverse insertion of power line

A power line and current technology, which is applied in the electric power field, can solve problems such as logo peeling off, and achieve the effect of improving safety performance

Inactive Publication Date: 2019-10-25
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for preventing power cords from being inserted backwards, so as to at least solve the problem in the related art that prevents the power cords from being inserted backwards by means of labeling, resulting in unpreventable problems caused by the sign falling off

Method used

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  • Method and device for preventing reverse insertion of power line
  • Method and device for preventing reverse insertion of power line
  • Method and device for preventing reverse insertion of power line

Examples

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Embodiment 1

[0016] In this embodiment, a method to prevent the power cord from being inserted backward is provided. figure 1 It is a flowchart of a method for preventing the power cord from being inserted backwards according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0017] Step S102: Obtain current and voltage values ​​for the power line of the electric equipment;

[0018] Step S104, sampling the current and voltage values ​​to obtain the corresponding modulus AD value;

[0019] Step S106: Determine whether the power cord is reversed according to the AD value.

[0020] Through the above steps S102 to S106, obtain the current and voltage values ​​for the power line of the electric equipment, and then sample the current and voltage values ​​to obtain the corresponding modulus AD value, and determine whether the power line is reversed according to the AD value ; Thereby solving the problem of preventing the power cord from being...

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Abstract

The invention provides a method and a device for preventing reverse insertion of a power line. The method comprises the following steps of obtaining current and voltage values of the power line of electric equipment; sampling the current and voltage values to obtain a corresponding modulus AD value; and determining whether the power line is reversely connected according to the AD value. The methodand the device are used to solve a problem that an identifier falls off and prevention can not be performed when a mode of pasting the identifier is used to prevent the reverse insertion of the powerline in the related technology, and an effect of increasing safety performance is reached.

Description

Technical field [0001] The present invention relates to the field of electric power, and in particular, to a method and device for preventing reverse insertion of a power cord. Background technique [0002] At present, the commonly used method to prevent the power cord from being inserted backwards is through the labeling method, which has the risk of incorrect labeling or the label falling off during use. For AC equipment, all the live wires are cut off under the action of the air switch. Once the power cord is connected reversely, the air switch will cut off the neutral wire. If the live wire is touched, there is a risk of electric shock. For DC equipment, if the power cord is connected reversely, the electrical equipment will be damaged. [0003] In view of the above-mentioned problems in related technologies, there is currently no effective solution. Summary of the invention [0004] The embodiment of the present invention provides a method and a device for preventing reverse ...

Claims

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Application Information

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IPC IPC(8): G01R31/02G01R19/25
CPCG01R19/25G01R31/50
Inventor 廖冠尧吴文豪叶王建唐麒麟
Owner GREE ELECTRIC APPLIANCES INC