Cooling system for a battery system and a method for cooling the battery system

Abstract

A cooling system for a battery system and a method for cooling the battery system are provided. The cooling system includes a housing having first and second enclosed portions, and a first evaporator and a first evaporator fan disposed in the first enclosed portion that recirculates air in a first closed flow path loop within the first enclosed portion. The first evaporator extracts heat energy from the air in the first closed flow path loop to reduce a temperature level of a first battery module in the first enclosed portion. The cooling system further includes a condenser disposed in the second enclosed portion and fluidly coupled to the first evaporator, which receives heat energy in a refrigerant from the first evaporator and dissipates the heat energy. The cooling system further includes a compressor disposed in the second enclosed portion that recirculates the refrigerant through the first evaporator and the condenser.

Description

TECHNICAL FIELD[0001]This application relates to a cooling system for a battery system and a method for cooling the battery system.BACKGROUND OF THE INVENTION[0002]In a typical air-cooled battery pack, ambient air from ambient atmosphere is directed across battery cells in the battery pack and is subsequently exhausted from the battery pack. However, the typical air-cooled battery pack has a major challenge in maintaining a temperature of the battery pack within a desired temperature range.[0003]In particular, a maximum operating temperature of the battery cells can often be less than a temperature of ambient air utilized to cool the batteries. In this situation, it is impossible to maintain the battery cells within a desired temperature range in an air-cooled battery pack.[0004]Accordingly, the inventors herein have recognized a need for an improved battery cell assembly that minimizes and / or eliminates the above-mentioned deficiency.SUMMARY OF THE INVENTION[0005]A cooling system f...

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Benefits of technology

[0005]A cooling system for a battery system in accordance with an exemplary embodiment is provided. The cooling system includes a housing having a first enclosed portion and a second enclosed portion. The first enclosed portion is configured to receive a first battery module therein. The cooling system further includes a first evaporator disposed in the first enclosed portion. The cooling system further includes a first evaporator fan disposed proximate to the first evaporator in the first enclosed portion configured to recirculate air in a first closed flow path loop within the first enclosed portion. The first evaporator is configured to extract heat energy from the air in the first closed flow path loop to reduce a temperature level of the first battery module. The cooling system further includes a condenser disposed in the second enclosed portion and fluidly coupled to the first evaporator. The condenser is configured to receive heat energy in a refrigerant from the first evaporator and to dissipate the heat energy. The cooling system further includes a compressor disposed in the second enclosed portion that recirculates the refrigerant throu

Problems solved by technology

However, the typical air-cooled battery pack has a major challenge in maintaining a temperature of the battery pack within a desired temperat

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