Capacitor bank assembly for devices used in an aftertreatment system

A capacitor bank assembly comprising:

• a housing assembly comprising:
• an upper cover defining a cavity, and
• a lower cover below the upper cover in a first direction, the lower cover comprising:
• a base plate removably coupled to the upper cover,
• a first protrusion extending from the base plate in the first direction towards the upper cover, the first protrusion having a first protrusion upper surface, and
• a second protrusion extending from the base plate in the first direction towards the upper cover, the second protrusion having a second protrusion upper surface;
• an internal assembly disposed between the upper cover and the lower cover, the internal assembly comprising:
• a circuit board removably coupled to the upper cover and extending over the first protrusion and the second protrusion, and
• a plurality of capacitors electrically connected to the circuit board in parallel, each of the capacitors extending from the circuit board in the first direction, at least a portion of each of the capacitors extending within the cavity;
• a first thermally conductive layer disposed between the circuit board and the first protrusion upper surface;
• and
• a second thermally conductive layer disposed between the circuit board and the second protrusion upper surface.