New energy automobile battery cooling system

Abstract

The invention provides a new energy automobile battery cooling system, which comprises a battery, a cooling liquid and a cooling liquid storage box, and is characterized in that the internal space of the cooling liquid storage box is larger than the volume of the battery, the cooling liquid is filled in the cooling liquid storage box, and the battery comprises a battery body and a sealing shell; the battery body is wrapped and sealed by the sealing shell, and the sealing shell is insulated and heat-conducting; the battery is soaked in a cooling liquid, the cooling liquid storage box is fixedly mounted on an automobile chassis, and the cooling liquid storage box is made of a heat-conducting material; and the system further comprises a heat-conducting fin, the first end part of the heat-conducting fin is soaked in the cooling liquid or is connected with the cooling liquid storage box body, and the second end part of the heat-conducting fin is connected with a radiator of an automobile or is connected with the outer wall of a cooling pipe of an automobile engine.

Description

technical field [0001] The invention belongs to the field of new energy vehicles, and in particular relates to a battery cooling system for new energy vehicles. Background technique [0002] With the development and promotion of new energy technologies, lithium batteries are widely used due to their high energy density, long cycle life, and environmental protection. Lithium Ion Battery It is a power source commonly used in existing new energy vehicles. Generally, a certain number of small lithium-ion batteries are combined in series and parallel to form a lithium battery module group to provide power for vehicles. However, lithium batteries are sensitive to temperature and are prone to overheating. Loss of control raises safety concerns and usually requires a battery cooling system. With the expansion of the application of lithium battery packs in large industries such as electric vehicles, the heat dissipation problem of lithium batteries has gradually become prominent, an...

AI Technical Summary

Problems solved by technology

[0005] In this technical solution, the cooling system includes a cooling cavity and a water storage tank. The space between the inner and outer shells of the battery body forms a cooling cavity. The battery body is installed inside the inner shell of the battery, and the outer surface of the battery body and the cooling cavity The inner shell of the body is bonded together, and then the outer surface of the inner shell of the cooling cavity is in contact with the cooling water to exchange heat, and then the water pump and the water inlet and outlet pipes are connected to the water storage tank to circulate the cooling water to achieve the purpose of cooling, the technical link Many, and through the surface-to-face contact between the outer surface of the battery body and the cooling cavity to dissipate heat, the heat exchange efficiency is low, the cooling of each part of the battery body is uneven, and there are many devices included, the space occupied is large, and the weight is also large, which is not conducive to Weight reduction and effective use of space in automobiles

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