Rotor Cooling Structure for Thermal Stability in Electromagnetic Retarders

The patent converts the harmful high-temperature environment into a beneficial cooling opportunity by designing cooling channels that utilize the temperature differential. The inclined edge and cooling fins transform the heat problem into an efficient heat dissipation system, where the same high temperatures that cause deformation are now actively managed through controlled thermal pathways.

The patent introduces cooling channels and cooling fins as intermediary structures between the cylindrical body and the external environment. These intermediaries facilitate heat transfer from the hot cylindrical body to the cooling air, acting as a mediator that protects the cylindrical body from thermal damage while maintaining electromagnetic performance.

The patent transitions from conventional planar cooling surfaces to a three-dimensional cooling structure by adding inclined edges and cooling fins. The inclined edge at a specific angle creates a volumetric air flow path, while cooling fins extend into the air flow, significantly increasing the effective cooling surface area and heat dissipation capacity without proportionally increasing structural complexity.

The patent employs curved cooling fins with optimized geometry instead of straight rigid structures. The curved shape of the cooling fins better conforms to the air flow patterns and thermal fields, enhancing heat transfer efficiency while maintaining structural integrity. The curvature allows for more effective utilization of the available space around the cylindrical body.