A busbar adaptive current distribution and overload protection device

Abstract

This utility model discloses a busbar trunking adaptive current distribution and overload protection device, belonging to the field of busbar trunking technology. Its key technical features include a busbar trunking body, a triggering mechanism fixedly connected to the top of the busbar trunking body, and an alarm mechanism fixedly connected to the top of the triggering mechanism. The heat-absorbing ring in the triggering mechanism allows the heat from the busbar trunking body to be quickly transferred to the metal tube. The acetone-filled metal tube utilizes the low boiling point of acetone to rapidly vaporize when the busbar trunking experiences overload and temperature rise, generating gas pressure to push the push rod, achieving triggering without power supply. This method offers superior reliability compared to electronic sensors that rely on external power, making it particularly suitable for explosion-proof or power outage scenarios. The contact sensor in the alarm mechanism moves the top ring upwards via the push rod, triggering the contact sensor. The contact sensor transmits a signal to the PLC controller, which then controls a buzzer alarm to alert personnel to maintain the busbar trunking body.

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