Electronic Merchandise Lock Using Shape Memory Actuation

The patent replaces the mechanical key lock system with an electronic lock mechanism that uses electronic keys (such as RFID cards or key fobs) and electronic locks. This substitution eliminates the physical mechanical components that are prone to tampering and breaking, while providing enhanced security features like unique electronic authentication codes and the ability to programmably control access. The electronic system maintains ease of manufacture through standardized electronic components while dramatically improving security reliability.

The patent implements a universal electronic key system where a single electronic key (such as an RFID card or key fob) can operate multiple lock mechanisms across different security devices. This multi-functionality reduces overall system complexity by using standardized electronic authentication protocols and components throughout the system, rather than requiring separate unique mechanisms for each lock. The electronic keys store authentication data that can be programmably configured for different access levels and devices, providing enhanced security without proportionally increasing complexity.

The patent extracts the power source from the lock mechanism itself and relocates it to the electronic key or external power system. The shape memory material in the lock mechanism responds to electrical power applied through conductors, but the actual power generation and storage components (batteries, power management circuits) are removed from the lock device and placed in the electronic key or external infrastructure. This extraction simplifies the lock mechanism design while the energy requirement is satisfied through the electronic key's power supply or external power sources.