Circuit-Breaking Switches For Excess Currents TRIZ Cases
- MEMS HVAC Switching With Arc Suppression for Fast Fault Isolation
MEMS switches and arc suppression cut HVAC fault response time, reduce arc-flash energy, and replace slower breakers and contactors.
- Rotor Radial Duct Ribs for Better Heat Transfer in Dynamoelectric Machines
Ribs formed inside rotor radial cooling ducts boost gas turbulence and surface area, improving winding heat removal in large dynamoelectric machines.
- U-Shaped Slot Motor Structure to Prevent Circuit Breaker Contact Chatter
A U-shaped slot motor boosts magnetic closing force to keep circuit breaker secondary contacts closed and reduce chatter and welding.
- Grooved Contact Carrier Structure to Limit Solder Rise
A roughened contact area and surrounding groove direct solder flow, limiting side rise and improving joint reliability in low-voltage switch contacts.
- Moving Contact Spring Mechanism to Prevent Breaker Rebound
A rotating contact spring uses electric repulsion to hold a temporary break position, preventing rebound and secondary switching-on in circuit breakers.
- Knife Switch Nozzle Layout for Proximal Arc Cooling
A fixed nozzle directs compressed cooling gas at the arcing contact to suppress arcs while steering hot gas away from main contacts.
- U-Shaped Current Path Switching for High-Current DC Arc Extinguishing
A U-shaped current path and magnetic arc guidance help compact DC switches interrupt high and short-circuit currents without arc short circuits.
- Bidirectional Double-Pole Contactor With Reversed Fields for Arc Separation
Opposed magnetic fields push arcs diagonally apart in adjacent interrupter chambers, reducing short-circuit risk and improving airflow for arc extinction.
- MEMS Circuit Breaker Isolation Circuit for High-Voltage Switching
An isolated activation circuit and stress-limiting stopper help a teeter-totter MEMS switch handle large voltage differences with longer life.
- Asymmetric MEMS Switch Structure for High-Voltage Durability
An asymmetrically anchored beam and mechanical stopper help a MEMS switch handle high voltage and current with lower hinge stress and arcing.
- Sensor-Integrated MEMS Circuit Breaker for High-Voltage Switching Stress
Integrated sensors and a microcontroller manage a teeter-totter MEMS switch to limit stress, prevent arcing, and extend high-voltage breaker life.