US 12,419,015 B2
Secondary cooling system for control modules
Gurhari Preet Singh, Toronto (CA); Karl Bo Albert Mikkelsen, Peachland (CA); and Rolf B. Karlsson, Grand Blanc, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on May 5, 2023, as Appl. No. 18/312,698.
Prior Publication US 2024/0373597 A1, Nov. 7, 2024
Int. Cl. H05K 7/20 (2006.01); B60R 21/26 (2011.01)
CPC H05K 7/20881 (2013.01) [B60R 21/26 (2013.01); B60R 2021/26017 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cooling system comprising:
a reactant material;
a reactive material spaced apart from the reactant material;
a thermally managed control module configured to receive coolant from a coolant supply reservoir via a coolant supply channel;
a plunger movable between a retracted position and an extended position; and
an actuator configured to, when a temperature of the thermally managed control module is greater than a predetermined temperature, transition the plunger from the retracted position to the extended position and cause the reactive material to mix with the reactant material to create a second coolant via an endothermic reaction, and the second coolant enters the thermally managed control module via the coolant supply channel.