Integrated type cooling and temperature preservation battery system and control method thereof

Abstract

The present invention relates to an integrated type cooling and temperature preservation battery system and a control method thereof. The system comprises a battery box body, and the battery box bodyis provided with a lower box body. The lower box body is successively provided with a lower box cover, a heat insulation layer and a heat conducting plate from bottom to top. The lower box cover is provided with a groove body, the groove body is matched with the heat insulation layer and the heat conducting plate to form a closed flow channel, and an outlet of the flow channel and an inlet of theflow channel are separately arranged on the side of the lower box body. The heat conducting plate is provided with battery module blocks. The lower box body outside of the battery module blocks is provided with an upper box body, and the lower box body is matched with the upper box body. The battery module blocks are provided with a plurality of temperature sensors, the battery module blocks are matched with the temperature sensors, and the temperature sensors are separately connected to a controller. The controller is connected with an external temperature control mechanism, and both ends ofthe external temperature control mechanism are separately connected to the outlet of the flow channel and the inlet of the flow channel via pipeline(s). According to the system, by using the establishing / barrier technology of heat conduction path(s) and taking a coolant liquid and a vacuum as media, the contradiction among temperature preservation, natural cooling and liquid cooling is easily reconciled; a heat management subsystem can freely switch among the three heat management modes, so that under the premise of ensuring good heat management, the energy consumption of heat management is maximally reduced, and when the system is applied to vehicles, the whole vehicle endurance is improved.

Description

technical field [0001] The present invention relates to a method or device for directly converting chemical energy into electrical energy, such as the technical field of battery packs, in particular to an integrated cooling and heat preservation battery system and a control method thereof. Background technique [0002] At present, with the support of the state and the favorable market conditions, the power lithium battery industry is developing very rapidly, and its application has been extended to the fields of electric buses, electric cars, micro-buses and energy storage. [0003] Since the power lithium battery needs to be charged and discharged frequently in the process of use, in addition to cooling the battery to ensure its better work, technicians are also concerned about tracking the real-time performance of the power lithium battery. This is the power lithium battery. The key to a battery performing its full function. [0004] However, in the prior art, the way to ...

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Problems solved by technology

[0004] However, in the prior art, the way to cool down the battery is mostly to operate on the body of the battery module. Although the effect of cooling can be guaranteed, the control is weak, and the heat dissipation and temperature acquisition are carried out on the battery module at the same time. , leading to poor overall heat dissipation effect and low heat dissipation efficiency, and if external intervention is used for heat dissipation and cooling, the effect is relatively good, but there are still problems of large structure and difficult maintenance

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