Battery buffering, heat-insulating and cooling plate, power battery pack and automobile

Abstract

The invention provides a battery buffering, heat-insulating and cooling plate, a power battery pack and an automobile, and aims to reduce the possibility of thermal runaway of a battery, avoid the thermal runaway and improve the mechanical safety of the battery pack when the battery pack is mechanically impacted. According to the invention, the battery buffering and cooling plate is bent for multiple times to form a plurality of U-shaped cavities, and the battery buffering, heat-insulating and cooling plate comprises a heat-insulation layer, a buffer support cooling layer and a bottom layer which are connected in sequence; the buffer support cooling layer comprises: a side surrounding frame which is fixed on the bottom layer, and an upper flat plate which is mounted at the top of the sidesurrounding frame; the side surrounding frame and the upper flat plate form a containing space, a plurality of hollow cylinders arranged in a staggered mode are fixedly arranged in the containing space, and an inlet allowing cooling liquid to flow into the containing space and an outlet allowing the cooling liquid to flow out of the containing space are formed in the side wall of the side surrounding frame.

Description

[0001] Technical field [0002] The invention belongs to the field of power batteries, and in particular relates to a battery buffer heat insulation cooling plate, a power battery pack and an automobile. Background technique [0003] As a new type of energy, lithium batteries are currently being promoted and used in many industries. As the number of lithium batteries used is increasing, as the number of uses increases, the number of faulty lithium batteries will also increase, and the probability of combustion and explosion will increase. Under the conditions of overcharge, overdischarge, extrusion, collision, etc., the battery is prone to safety accidents such as smoke, fire and even explosion, which directly threatens the safety of passengers' lives and property; at the same time, it also causes damage to the environment. Therefore, the safety of the battery system is the key to ensure the safety performance of new energy electric vehicles. [0004] At present, there are m...

AI Technical Summary

Problems solved by technology

[0005] The defect of the above patents is that they fail to reduce the possibility of thermal runaway of the battery when the battery pack is subjected to mechanical impact, or even avoid the occurrence of thermal runaway, improve the mechanical safety of the battery pack, and do not consider the conventional heat loss of the battery. Manage demand to keep batteries operating at normal temperatures

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