Battery module with PTC heating function and liquid cooling function

Abstract

The invention provides a battery module with a PTC heating function and a liquid cooling function. The battery module comprises a battery module, a PTC heating core is arranged on the battery module,a wiring terminal is arranged at one end of the battery module, the PTC heating core is connected to the wiring terminal and is connected with a support supply through the wiring terminal for supplying power for the PTC heating core, a water inlet is formed in one end of the shell of the battery module, a water outlet is formed in the other end of the shell of the battery module, the water inlet and the water outlet are connected through a cold plate with an inner flow channel, and cooling water enters the cold plate with the inner flow channel through the water inlet to cool the battery module and flows out through the water outlet. The temperature of the battery module is adjusted, it is guaranteed that the battery module works in the optimal temperature environment, temperature adjusting work is automatically completed, errors caused by manual control are avoided, the wiring terminals are isolated and protected through the insulation isolation pads, and safety is improved.

Description

technical field [0001] The invention relates to the field of automobile batteries, in particular to a battery module with a PTC heating function and a liquid cooling function. Background technique [0002] As the main energy storage element of the battery pack on the electric vehicle, the battery pack is a key component of the electric vehicle and directly affects the performance of the electric vehicle. Lithium-ion power batteries are currently used in electric vehicle battery packs due to their excellent power output characteristics and long life. However, the performance of lithium-ion power batteries is sensitive to temperature changes, especially the large-capacity, high-power lithium-ion batteries used in vehicles. The loading space on the vehicle is limited, and the number of batteries required by the vehicle is relatively large, and the batteries are all closely arranged and connected. When the vehicle is running under different driving conditions such as high spee...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the object of the present invention is to provide a battery module with PTC heating function and liquid cooling function, the battery module is heated by the PTC heating core, and the belt on the battery module Cooling water is passed into the cold plate of the inner runner, and then the temperature of the battery module is adjusted to ensure that the battery module works in an optimal temperature environment, which solves the problem that the battery module temperature is too high or too low to affect its service life question

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