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Delay protection charger of electric vehicle

A time-delay protection and charger technology, which is applied in the direction of electric vehicles, current collectors, battery circuit devices, etc., can solve the problems of ineffective protection, scrapping, overcharging, etc.

Inactive Publication Date: 2013-01-30
兰州科能机电设备制造有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, due to the cost of electric vehicle battery chargers, all manufacturers have adopted voltage monitoring and protection circuits, and what is monitored is the total voltage of the battery pack. Protection, which in turn causes the battery pack to be overcharged and scrapped
According to the daily maintenance experience of electric vehicle batteries, a completely dead battery can be fully charged with the original charger for about 10 hours. If the electrode is not disconnected in time at this time, it will easily cause overcharging

Method used

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  • Delay protection charger of electric vehicle

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Effect test

Embodiment Construction

[0006] There is an adjustment knob on the shell of the delay protection charger, and the indication of the adjustment knob corresponds to a scale of 1-10 hours. The user can specifically adjust the time for delay protection according to the battery power loss. During the delay protection time, if the battery has been fully charged and the voltage monitoring protection works normally, the charger will automatically switch to trickle floating charge until the delay protection works and completely shut down the charging; when the delay protection If the battery has been fully charged within a certain period of time, but the voltage monitoring protection fails to function normally, after the battery pack has been overcharged for a short period of time, the charging current will be completely turned off when the delay protection works, so that the battery pack can be absolutely protected. .

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Abstract

The invention discloses a delay protection charger of an electric vehicle. Because of the cost of an electric vehicle battery charger, a voltage monitoring protection circuit is adopted by all manufacturers; when parameters of single batteries of a battery pack have relatively large difference, the voltage monitoring protection circuit cannot take the effective protection, thereby causing overcharge and bulge of the battery pack, as a result, the battery pack is discarded as useless. Through summing up daily maintenance experience of an electric vehicle battery, the battery without any electricity can be charged fully for about 10 hours by the original charger in general; at this moment, if the battery is not disconnected, the overcharge occurs easily. The delay protection charger of the electric vehicle is characterized in that a delay protection circuit is additionally arranged in a charger circuit; and when the voltage monitoring protection of the charger is in failure, the delay protection circuit can take a good secondary protection effect.

Description

technical field [0001] The invention relates to a delayed protection charger for an electric vehicle, in particular to a battery charger with secondary protection. technical background [0002] At present, due to the cost of electric vehicle battery chargers, all manufacturers have adopted voltage monitoring and protection circuits, and what is monitored is the total voltage of the battery pack. protection, which in turn causes the battery pack to be overcharged and scrapped. According to the daily maintenance experience of electric vehicle batteries, it can be known that a completely dead battery can be fully charged in about 10 hours with the original charger. . Contents of the invention [0003] The electric vehicle delay protection charger is equipped with a 10-hour delay protection circuit and a relay controlled by the delay protection circuit at the output of the charging circuit. The charging current generated by the charging circuit is output to the battery pack ...

Claims

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Application Information

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IPC IPC(8): H02J7/00
Inventor 赵延斌
Owner 兰州科能机电设备制造有限责任公司
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