Ventilation box for battery module

Abstract

The invention discloses a ventilation box for a battery module. The ventilation box comprises a box body. A damping hanging frame capable of moving vertically is arranged on the upper portion in the box body, and a plurality of cooling fins distributed in parallel are arranged at the top of the damping hanging frame and are rotationally connected with the damping hanging frame. A horizontal sliding groove is formed in the inner wall of the box body, sliding blocks are arranged at the two ends of the sliding groove in a sliding fit mode, damping springs distributed in the sliding groove direction are arranged at the two ends of each sliding block, and a supporting frame capable of pushing the sliding blocks to move along the sliding groove is arranged on the damping hanging frame. A driven frame rotationally connected with the cooling fins is arranged above the damping hanging frame, a shifting fork is arranged in the box body and used for driving the driven frame to move in the horizontal direction when the driven frame moves vertically, and the shifting fork is rotationally connected with the inner wall of the box body. Vertical guide pillars are arranged on the damping hanging frame, and guide sleeves in sliding fit with the guide pillars are arranged at the inner bottom of the box body. According to the ventilation box for the battery module, vibration is reduced, and cooling capacity is improved.

Description

technical field [0001] The invention belongs to the field of battery heat dissipation, and in particular relates to a battery assembly air circulation box. Background technique [0002] At present, in the battery manufacturing process, in order to meet the use environment, it is often necessary to use multiple battery slices or battery cells to be connected in series and parallel to meet the appropriate power and power design requirements. When the battery is in the outdoor environment and is in the process of moving, such as the battery of a car, the battery will also bump due to the uneven road surface, which increases the probability of battery damage and shortens the service life of the power supply. During the normal use and discharge process of the battery, even when it is not in use, such as storage and transportation, the battery will slowly discharge and generate a certain amount of heat due to the internal resistance. When the battery is discharging, the heat gene...

AI Technical Summary

Problems solved by technology

When the battery is being discharged, the heat generated is dissipated outward through the outer casing of the battery, and when the current of the circuit increases and the power consumption increases, the heat generated by the battery rises sharply, which easily exceeds the heat dissipation performance of the outer casing, resulting in overheating of the battery and the safety of the battery. The performance is reduced, and the service life is greatly shortened

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