SYSTEMS, METHODS, AND MECHANICAL DESIGNS FOR INVERTERS FOR EVTOL AIRCRAFT

Smart overview of the Invention

The patent application describes an electrical propulsion system specifically designed for vertical take-off and landing (VTOL) aircraft. The system includes an electrical motor assembly and an inverter assembly, which are crucial for the aircraft's operation. The inverter assembly is composed of a housing, a capacitor assembly, at least one printed circuit board assembly (PCBA), and multiple positioning pins. This configuration is intended to optimize the performance of the VTOL aircraft by reducing noise, vibration, and heat generation during frequent short-distance flights.

Technical Field

The technology pertains to powered aerial vehicles, focusing on electric propulsion systems for non-conventional aircraft like tilt-rotor models. These aircraft are designed for frequent flights over densely populated areas, carrying 4-6 passengers with minimal noise and vibration. The design emphasizes durability, heat management, and safety features such as distributed propulsion systems to avoid single points of failure.

Innovative Configurations

The disclosed embodiments introduce new configurations for aircraft components that differ from traditional designs. These configurations aim to enhance energy efficiency, safety, and compliance with aviation regulations. The system includes mechanisms for DC to AC power conversion, weight reduction, and space optimization. Safety improvements include system redundancy and compliance with fire protection standards to ensure passenger safety.

Propulsion System Design

The distributed electric propulsion system may feature up to twelve electric engines mounted on booms around the wings. Forward engines can tilt between horizontal and vertical positions for different flight phases, while aft engines remain fixed for vertical lift. Propeller rotation directions can vary to optimize thrust and minimize drag during different flight modes.

Inverter Assembly Details

The inverter assembly plays a crucial role in converting DC power to AC power for the propulsion system. It includes a housing with a capacitor assembly featuring a center hole, busbar, and through holes for positioning pins. These components are designed to fit compactly within the housing, contributing to the overall efficiency and performance of the VTOL aircraft.