Polarity correcting plug-in assembly for bipolar DC power supply and method of operation thereof

Abstract

The invention provides a polarity correcting plugging assembly for a bipolar DC power supply and an operation method of the polarity correcting plugging assembly. The assembly comprises a plug wire panel at a DC power supply side, and an electric plug located at a DC electric appliance side and matched with the plug wire panel for use, wherein the plug wire panel is connected to a DC power line by using a DC voltage polarity correcting unit. The polarity correcting plugging assembly is suitable for an electricity obtaining mode of orienting to a plug wire surface of the DC power supply; the form is simple; the polarity correcting plugging assembly is convenient to reserve, not easy to soil, not prone to fall off and easy to maintain; meanwhile, the polarity correcting plugging assembly is not compatible with an existing national standard AC plug port at all; incorrect mixed plugging of AC equipment and DC equipment is effectively avoided; the distance between two poles is safe and reasonable; the air insulation requirements of DC voltage of 400V (+ / -200V) can be met; the conditions that the polarity sequence of DC output is not affected by DC polarity reversal of a system and the polarity of each connected wire does not need to be checked again during DC access can be ensured; the design is easy to implement; and the technical cost and the material cost can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of power distribution and utilization, in particular to a polarity correction plug-in assembly for a two-pole DC power supply and an operation method thereof. Background technique [0002] In recent years, the scale and capacity of photovoltaic power generation, electric vehicles and other DC power generation equipment connected to the grid are gradually increasing. The rapid increase of the DC link of the distribution network reflects the vigorous development of new energy on the one hand, and also reflects the society. An urgent desire to reduce environmental pollution. With the increase in the number and capacity of these DC devices, DC power distribution will play an increasingly important role. In the future, DC households will become inevitable. In addition to electric vehicles, DC household appliances (rectifier circuits are omitted and the cost is lower) will also appear. And it is directly connecte...

AI Technical Summary

Problems solved by technology

[0003] DC access means that in the future, users will use DC power equipment to reliably obtain power from special sockets or power strips in family rooms or offices as they currently use AC appliances. AC plugs and sockets are completely incompatible to avoid danger caused by misconnection, but there is currently no corresponding plugging method and design

At the same time, for DC electrical equipment—especially DC equipment including DC motors and batteries, they are very sensitive to the polarity of DC voltage. Once the polarity is reversed, they will not work normally, causing the motor to reverse and the battery to fail to charge. and potentially destructive results

[0004] In order to solve the problem of reliable and safe access to electrical equipment through the DC power supply panel after the DC enters the home, and to avoid the problem of mixed connection between AC and DC plug-in devices, it is urgent to propose a two-pole DC power supply plug with polarity correction function. connection unit or method

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