Movable Nozzle Cam Mechanism for IPM Motor Coolant Distribution

The patent applies the dynamics principle by making the nozzle movable rather than fixed. The nozzle is connected to a cam mechanism that allows it to change position dynamically. During vehicle operation, as the vehicle tilts or accelerates, the cam mechanism causes the nozzle to move and redirect the coolant flow, ensuring that coolant is always directed toward the stator windings regardless of vehicle orientation. This dynamic adjustment resolves the contradiction by maintaining reliable coolant distribution without requiring a completely complex active control system.

The patent applies preliminary anti-action by designing the cam mechanism to anticipate and counteract the effects of vehicle tilt and acceleration before they cause coolant maldistribution. The cam profile is specifically designed to move the nozzle in opposition to the expected direction of coolant flow deviation due to gravity and inertia during vehicle maneuvers. This preliminary counter-action ensures that coolant distribution remains uniform even during dynamic vehicle operation.

The movable nozzle connected to the cam mechanism dynamically adjusts coolant distribution to prevent hot spots. As the vehicle tilts or accelerates, the cam mechanism moves the nozzle to maintain proper coolant flow direction toward the stator windings, ensuring uniform temperature distribution across the motor. This mechanical dynamic adjustment prevents localized overheating without requiring complex electronic sensors or active control systems.

The cam mechanism is designed to automatically adjust the nozzle position based on vehicle motion without external control input. The mechanical linkage between the cam and nozzle creates a self-regulating system where the nozzle automatically redirects coolant flow in response to vehicle tilt and acceleration, preventing hot spots through self-service rather than requiring external temperature sensors and active control.

The patent implements a movable nozzle connected to a cam mechanism that dynamically adjusts coolant flow direction in response to vehicle motion. The cam profile is designed to move the nozzle in a specific pattern that compensates for vehicle tilt and acceleration, maintaining consistent coolant distribution to the stator windings regardless of vehicle orientation. This dynamic mechanical solution improves reliability while keeping manufacturing relatively simple.

The coolant distribution system is segmented into multiple components: a fixed cam mechanism, a movable nozzle, and a coolant supply line. This segmentation allows the cam and nozzle to be manufactured and assembled separately, with the cam profile pre-designed to provide the necessary motion compensation. The segmented approach maintains ease of manufacture while enabling the dynamic adjustment needed for consistent coolant distribution during vehicle operation.