| CPC B60L 53/302 (2019.02) [B60L 53/11 (2019.02); B60L 53/16 (2019.02); B60L 53/18 (2019.02); H05K 7/20254 (2013.01); H05K 7/20263 (2013.01); H05K 7/20272 (2013.01); H05K 7/20281 (2013.01); H05K 7/20927 (2013.01)] | 18 Claims |
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1. A charging station for electric vehicles, comprising:
a plurality of charge terminals located above ground;
a plurality of charging pods located below ground, wherein each charging pod is connected to one of the plurality of charge terminals, wherein each charging pod includes:
an electric vehicle charger including a plurality of electronic charging components;
a plurality of heat exchange plates located in the electric vehicle charger over the electronic charging components, wherein each heat exchange plate includes a coolant inlet and a coolant outlet, wherein the coolant inlet and the coolant outlet are connected to an inlet end and an outlet end respectively of a serpentine coolant coil located on the heat exchange plate;
a coolant input line connected to the coolant inlet of each heat exchange plate;
a coolant output line connected to the coolant outlet of each heat exchange plate;
a cooling system including:
a coolant supply tank, wherein the coolant supply tank is configured to hold a coolant, and
a coolant pump;
a plurality of geothermal coils fluidly connected between the coolant output line and the coolant pump, wherein the plurality of geothermal coils are buried at a below ground depth in a range of about 15 m to about 20 m;
a reversible motor connected to the coolant pump;
a variable flow device connected to a coolant pump input pipe;
an ultrasonic flow meter connected to a coolant pump output pipe, wherein the ultrasonic flow meter is configured to generate pressure measurement signals of a coolant flow in the coolant pump output pipe;
a power supply connected through a relay to the reversible motor;
a plurality of temperature sensors, wherein each temperature sensor is configured to perform temperature measurements and generate temperature measurement signals; and
a computing device located within each charging pod, wherein the computing device is operatively connected to the reversible motor, the variable flow device, the ultrasonic flow meter and the power supply, wherein the computing device includes an electrical circuitry, a memory configured to store program instructions and at least one processor configured to execute the program instructions, wherein the computing device is configured to:
receive power from the power supply,
receive the temperature measurement signals from the plurality of temperature sensors,
receive pressure measurement signals from the ultrasonic flow meter,
receive flow measurement signals from the variable flow device,
compare the temperature measurement signals to a temperature threshold, and
actuate the reversible motor to pump coolant to the coolant inlet to lower the temperature of the heat exchange plates when the temperature measurement signals exceed the temperature threshold.
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