Electric tool charging control device for astronaut

Abstract

The electric tool charging control device for the astronaut comprises an acquisition module; the charging power module is connected with a bus in a spacecraft cabin through a charging start button and charges a storage battery pack of the electric tool for the astronaut; the charging power adjusting module is respectively connected with the charging power module and the acquisition module, and controls the charging power module to charge the storage battery pack from constant current to constant voltage according to the parameters acquired by the acquisition module; the indication control module is connected with the acquisition module and is used for displaying the state of the charging control device; the charging control module is connected with the acquisition module, judges whether voltage abnormity exists in the single batteries, whether temperature abnormity exists in the storage battery pack and whether over-current charging exists according to the parameters acquired by the acquisition module, and performs charging stop control operation on the storage battery pack based on the judgment result; and the monomer equalization module is connected with the acquisition module, judges whether equalization between the battery monomers is needed or not according to the parameters acquired by the acquisition module, and controls to realize voltage equalization between the battery monomers if the equalization is needed.

Description

technical field [0001] The invention relates to the technical field of battery charging, in particular to a charging control device for electric tools used by astronauts. Background technique [0002] Lithium-ion batteries have been widely used in the aerospace field due to their high specific energy, high working voltage, low self-discharge rate, long cycle life, and good safety. [0003] During the use of lithium-ion batteries, it is necessary to strictly control the charge and discharge rate to prevent undercharging and overcharging. Undercharging of lithium-ion batteries will affect the power supply capacity and service life. Overcharging will not only affect the service life, but also cause safety hazards in severe cases. Therefore, a reasonable, safe and reliable charging control method suitable for 18650 lithium-ion batteries is needed. Contents of the invention [0004] The object of the present invention is to provide a charging control device for an electric too...

AI Technical Summary

Problems solved by technology

[0003] During the use of lithium-ion batteries, it is necessary to strictly control the charge and discharge rate to prevent undercharging and overcharging. Undercharging of lithium-ion batteries will affect the power supply capacity and service life. Overcharging will not only affect the service life, but also cause safety hazards in severe cases. Therefore, a reasonable, safe and reliable charging control method suitable for 18650 lithium-ion batteries is needed.

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