Chargeable cell energy feedback detection device being capable of series connection and parallel connection

Abstract

The invention provides a chargeable cell energy feedback detection device being capable of series connection and parallel connection, and aims to provide a voltage and current detection circuit used for an energy feedback chargeable cell being capable of series connection and parallel connection. The technical scheme is as follows: the detection device comprises a monitoring host, a one-chip microcomputer, a PWM rectification / inversion circuit and a series-parallel control module. The monitoring host is connected with the one-chip microcomputer through an RS485 communication module. The series-parallel control module is connected with the one-chip microcomputer through a D / A conversion module and a series-parallel controller. Current and voltage signals collected by the series-parallel control module are sent to the one-chip microcomputer via an A / D conversion module. The series-parallel control module is connected with the power grid through the PWM rectification / inversion circuit. The device has beneficial effects that a chargeable cell detection circuit system can be simplified, the system stability is raised, an impact current to charging and discharging of the chargeable cell is eliminated, and the system is controlled by an upper host and the one-chip microcomputer.

Description

technical field [0001] The invention relates to a detection device which is used for series and parallel connection of rechargeable battery detection circuits and can realize energy feedback. Background technique [0002] At present, with the increasing shortage of renewable energy in the world, rechargeable batteries are attracting more and more attention as a kind of clean energy. Growing. Strict regulations on carbon emissions by the governments of countries and regions such as Europe, North America, and China are also driving the market. The development of the rechargeable battery industry further drives the development of rechargeable battery testing equipment, and promotes the improvement of matching testing methods, standards and equipment development. [0003] The traditional rechargeable battery detection circuit system is complex and bulky, which increases the cost virtually, and has poor stability and large inrush current, which can cause incalculable damage...

AI Technical Summary

Problems solved by technology

[0003] The traditional rechargeable battery detection circuit system is complex and bulky, which increases the cost virtually, and has poor stability and large inrush current, which can cause incalculable damage to the battery

And the equipment is highly targeted, and there is also a huge waste of energy during the discharge process. For example: 5V3A equipment can only detect a single rechargeable battery below this voltage and current range. If you need a 20V10A charging current, you must buy a new one. Large-range equipment is likely to cause idleness and waste of equipment during the application process

During the discharge process of traditional equipment, due to the use of resistance energy consumption, it will cause a huge waste of energy. For example, based on the production capacity of 5000 20V20A rechargeable battery packs of the manufacturer per day, it takes 1 hour in the discharge detection process, that is, 2000W The power per hour is wasted in vain in this process, which is not only a waste of energy but also a huge loss to the manufacturer

Images