Rotary battery pack thermal management system based on air-cooling uniform temperature control

Abstract

The invention discloses a rotary battery pack thermal management system based on air-cooling uniform temperature control. The rotary battery pack thermal management system comprises a box body and a battery pack rotating module. The battery pack rotating module comprises a low-speed motor, a rigid rib plate, a large inner gear, discs, single batteries and a plurality of small outer gears. The rigid rib plate is composed of a center plate and a plurality of ribs. The low-speed motor is connected with the center plate. The tail end of each rib is connected with one small outer gear in a revolutepair form. The large inner gear and the small outer gears form a planetary gear structure and are meshed with each other. One disc is fixedly installed in the center of each set of small outer gears.A circle of battery pack composed of a plurality of annularly and evenly distributed single batteries is fixedly installed on each disc. A rotary conductive sliding ring is installed at the top of the center of each battery pack. Fans are installed on the box body. According to the invention, the batteries are driven to realize revolution and autorotation motion, and the battery packs are enabledto have the same motion condition and cooling environment under the air cooling condition, so that the batteries are ensured to have good temperature uniformity.

Description

technical field [0001] The invention belongs to the technical field of thermal management devices for power batteries, and in particular relates to a thermal management system for a rotating battery pack based on air cooling and uniform temperature control. Background technique [0002] High-energy-density batteries will generate a lot of heat during rapid charge and discharge or continuous high-intensity work, and the heat will cause the temperature of the battery to rise sharply. [0003] However, the battery has a "comfortable" temperature range when it is working. If the temperature is too high, the aging of the battery will be accelerated, and the service life will be greatly reduced. At the same time, the battery pack has strict requirements on the temperature uniformity among the battery cells, and the temperature uniformity is an important guarantee for the performance and reliability of the battery. Therefore, it is necessary to adopt an effective thermal managemen...

AI Technical Summary

Problems solved by technology

[0004] Due to the difficulty of uniform temperature control technology for battery packs, common battery thermal management research is mainly focused on controlling the maximum temperature of the battery, while ignoring the research on battery uniformity

In addition, the common arrangement of battery packs is mostly a matrix arrangement, and the relative positions of the battery cells are fixed, resulting in a significant temperature difference between the single cells in the battery pack during operation, and the temperature of the battery in the middle of the battery pack is high. Peripheral battery temperature is relatively low

This situation will greatly affect the performance of the battery and reduce the service life of the battery pack

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