Electric vehicle with battery free of disassembly and maintenance and battery maintenance system

Abstract

The invention provides an electric vehicle with a battery free of disassembly and maintenance and a battery maintenance system. Positive electrodes and negative electrodes of all battery units in theelectric vehicle are concentrated into a conversion plate through a battery connecting plate; the conversion plate comprises a plug bush, a movable connecting rod, a fixed connecting rod, a control rod, a pull rod, a turntable, a series pull wire and a parallel pull wire; tension is applied to the series stay wire and the parallel stay wire; the battery pack can be converted between series connection and parallel connection; an electric door lock, a control module, a manual switch and a charger charging head are used for controlling a series stay wire or a parallel stay wire, the battery packrealizes the balance of battery voltage and current through the conversion between series connection and parallel connection; the maintenance mode of the battery can be selected according to the vehicle using habit, the charger has a common charging mode and a maintenance charging mode, the delayed charging time can be adjusted, the scheme is easy to implement and low in cost, no energy loss is generated in the maintenance process, and the service life of the battery is greatly prolonged through daily maintenance.

Description

technical field [0001] This patent relates to the field of electric vehicles, and mainly relates to the maintenance-free maintenance of electric vehicle batteries. Background technique [0002] During the use of electric vehicle batteries, the individual differences in capacity and voltage differences generated by self-discharge rate will cause the performance imbalance between the batteries in the equipment, which will directly affect the service life of the batteries, and the batteries are installed in the equipment. It is very troublesome to remove the battery for maintenance. For example, for a two-wheeled electric vehicle with a lead-acid battery, a set of brand new batteries is worth 600-1000 yuan, and it needs to be maintained every six months at a cost of 100-200 yuan. The value of the battery itself is not directly proportional. 99% of the batteries have not been balanced and maintained from new to scrapped. When charging, the battery with poor performance will be f...

AI Technical Summary

Problems solved by technology

[0002] During the use of electric vehicle batteries, the individual differences in capacity and voltage differences generated by self-discharge rate will cause the performance imbalance between the batteries in the equipment, which will directly affect the service life of the batteries, and the batteries are installed in the equipment. It is very troublesome to remove the battery for maintenance. For example, for a two-wheeled electric vehicle with a lead-acid battery, a set of brand new batteries is worth 600-1000 yuan, and it needs to be maintained every six months at a cost of 100-200 yuan. The value of the battery itself is not directly proportional. 99% of the batteries have not been balanced and maintained from new to scrapped. When charging, the battery with poor performance will be fully charged in advance. The normal battery is not fully charged, and the charger will continue to charge. The battery with poor performance Overcharge is formed. When the electric vehicle is riding (discharging), the battery with poor performance will run out of power in advance. The normal battery still has power, and the electric vehicle can still ride for a certain distance. The battery with poor performance will form over-discharge. The overcharge and overdischarge of the overcharge and overdischarge lead to the accelerated decay of the battery performance with poor performance, which eventually leads to the useless function of the battery and affects the performance of the entire battery pack. More than 80% of the lead-acid battery packs have been used for about one and a half years, because one, Two batteries are damaged and the whole group is scrapped, which wastes social resources and affects the environment; lithium batteries used in electric vehicles are protected and balanced by installing protective plates and a large number of electronic components in the battery board, which is costly. The design is difficult, and the electronic components generate energy loss in the process of balancing maintenance. At the same time, the protection board and electronic components are installed in the battery board with the lithium battery, which is inconvenient to repair and replace. Because the protection board and electronic components are damaged, the lithium battery may catch fire. there are many things

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