Cooling/Ventillation Arrangement TRIZ Cases
- Dual-Circuit Motor Cooling Housing for Better Heat Capacity Use
A dual-circuit housing uses separate water/glycol and oil channels to cool stator, winding heads, and motor interior with better heat capacity use.
- Coil Head Cooling Channel Layout Without Larger Machine Diameter
A longitudinal channel between the flange and coil-end coating cools stator coil heads efficiently without increasing electric machine diameter.
- Aircraft Propulsion Motor Cooling Channels Around Stator Coils
Segmented coolant channels around stator coils and teeth improve heat dissipation in aircraft propulsion motors while limiting coolant temperature rise.
- Two-Piece End Winding Support for Fracture-Resistant Rotors
A press-fit two-piece end winding support lowers stress concentration, resists fracture, and preserves electrical isolation in electric machine rotors.
- Axial Flux Rotor Cooling Module for Compact Heat Dissipation
A separate axial cooling channel module improves rotor heat dissipation in axial flux machines while fitting tight installation space.
- Vehicle Drive Cooling Circuit Isolation for Short-Circuit Prevention
Separate conductive and non-conductive cooling loops use a heat exchanger and protection cover to prevent motor short circuits.
- Frameless Traction Motor Cooling Layout for Low-Floor Rail Vehicles
Axial cooling elements on a housing-less traction motor improve heat dissipation and power density while keeping rail vehicle floor height low.
- Directly Cooled Windings Using Turbulent Coolant Gaps
Gaps between directly cooled windings drive turbulent coolant flow, raising heat transfer and current density while reducing electric losses.
- Canned Motor Sealing Structure for Chemical Fluid Leakage
Multiple sealing elements and stepped annular profiles block chemical fluid leakage in a canned motor, protecting the stator if the cover lining fails.
- Motor Cooling Oil Passage Layout for Equalized Multi-Port Discharge
Different derived oil passage shapes balance pressure loss across discharge ports, helping motors receive more uniform oil cooling.
- Axial-Tunnel Electric-Machine Housing for Low NVH
Axial tunnels left empty or filled with damping medium weaken stator vibration paths and lower electric-machine housing NVH.
- Cooling device for an electric motor and electric motor with cooling device
Wave-shaped cooling fins expand surface area and create turbulence to improve motor cooling while reducing rotating-tone noise.
- Bar Stator Winding Layout to Reduce Rotary Machine Power Loss
Rectangular U-shaped copper bars improve slot fill and cut skin effect losses, raising rotary machine efficiency, power, and torque.
- Graphene-Coated Rotor Windings for Higher Current and Cooling
Graphene coating on rotor winding conductors improves heat dissipation and lowers I2R losses, enabling higher current without larger generators.
- Flexible Motor Cooling Channel for Multi-Heat-Source Flow Balancing
Modular flexible flow channels redistribute coolant across multiple motor heat sources to improve heat dissipation and avoid clogging.
- End Shield Spray Apertures for Cooling Electric Machine End Coils
Integrated spray apertures in the end shield cool end coils without separate spray rings, cutting complexity, cost, and tolerance demands.
- Encapsulated Electric Machine Cooling With Secondary Airflow
A secondary airflow element adds turbulence to internal cooling channels, improving heat removal and temperature uniformity in encapsulated electric machines.
- Stator Cooling Duct Separator Layout for Uniform Coil Temperature
An oblique stator cooling-duct separator spreads heat across multiple coils, reducing local hot spots and thermal stress.