Contact Mechanisms TRIZ Cases
- Cooling appliance
See how a magnetic conductive element enables cabinet-mounted sensors to detect multi-door open
- Switch with accidental shut off alarm
See how an emergency switch uses LED and speaker indicators to alert users when HVAC or applian
- Mailbox Delivery Notification Using Reed Switch Door Detection
See how a reed switch and control circuit detect mailbox door opening to send real-time deliver
- Two-Wire Door Lock Circuit for Closing and Lock Detection
A two-contact door lock circuit detects both closing and locking states, cutting wiring, size, and assembly cost in household appliances.