Active equalization module of lithium battery

Abstract

The invention discloses an active equalization module of a lithium battery in the field of new energy automobiles. The active equalization module comprises a mounting base, wherein one side of the mounting base is hinged to a movable connecting clamp, the interior of the movable connecting clamp is hinged to a limiting pressing frame, and a top end of the interior of the movable connecting clamp is hinged to an upper fixing frame; and operation grooves are formed in the limiting pressing frame and the mounting base; through the limiting pressing frame and the upper fixing frame, after a worker fixes the active balancing plate in the mounting base, a battery pack can be mounted on the active balancing plate, the battery pack can be operated through an operation groove, the operation space of the worker is enlarged, after installation is completed, the limiting pressing frame and the upper fixing frame can be stacked together in sequence and then are fixed together through a locking screw rod to form a box body, so not only can the whole internal module be protected, but also operation of the worker is facilitated, and when a certain battery element in the battery pack needs to be replaced, and the worker can quickly open the device and replace the device.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to an active equalization module of a lithium battery. Background technique [0002] At present, the electric vehicle market can be roughly divided into high-end electric bus, high-end electric car market, special-purpose vehicle market, and relatively middle and low-end economical electric car, small and micro car and low-speed electric vehicle market. In the high-end market, due to the requirements of national quality standards and the pursuit of quality by the company itself, in order to ensure that the vehicle capacity does not rapidly decay, high-priced and high-quality batteries from domestic first-line battery manufacturers and imported brands are strictly used, but performance is also urgently required. Better BMS products further guarantee the quality; the economical market hopes to use the products of the second-tier cell factory to reduce costs, but suffers from the per...

AI Technical Summary

Problems solved by technology

In the high-end market, due to the requirements of national quality standards and the pursuit of quality by the company itself, in order to ensure that the vehicle capacity does not rapidly decay, high-priced and high-quality batteries from domestic first-line battery manufacturers and imported brands are strictly used, but performance is also urgently needed. Better BMS products further guarantee the quality; the economical market hopes to use the products of the second-tier cell factory to reduce costs, but suffers from the performance of the finished product not meeting the national standard, and hopes to have a more powerful balanced product to solve this problem; low-speed The electric vehicle market currently uses lead-acid batteries, but the country has forced them to replace lithium batteries. Due to cost pressures, the low-speed electric vehicle market prefers to use low-cost batteries with relaxed consistency. At the same time, it also proposes high-performance active balancing products. a lot of demand

[0003] At present, due to the complexity of the power supply circuit of the existing active equalization module and the large number of battery packs inside, when the staff needs to replace or overhaul it, the entire equalization board needs to be disassembled, which is not only time-consuming and laborious, but also difficult to reinstall. During the process, it is easy to cause the equalization plate to be worn

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