Cabinet type device door lock system and control method thereof

Abstract

The invention discloses a cabinet type device door lock system and a control method of the cabinet type device door lock system. The system comprises a logic unit, and a connecting rod type mechanical door lock, an electromagnetic lock and a sensor A, which are arranged on a cabinet type device door, wherein the electromagnetic lock, the sensor and voltage signals of a device in a cabinet are respectively in signal connection with the logic unit; a lock piece of the electromagnetic lock is matched with a fixing piece of a locking structure on a lock rod of the mechanical door lock, and the locking piece and the locking structure are matched to realize the locking to the mechanical door lock due to the electromagnetic lock at the position where the mechanical lock locks the cabinet type device door; the method is realized based on the cabinet type device door lock system, and the logic unit receives locking signals of the mechanical lock of the sensor A, sends electrifying signals to the device in the cabinet after receiving all door-closing signals and controls the locking of the electromagnetic lock; and when the device in the cabinet is in power down, the voltage signals of the device in the cabinet are transmitted to the logic unit, and the logic unit controls the unlocking of the electromagnetic lock. According to the invention, the power down of the device in the cabinet after the cabinet door is unlocked is ensured, and the safety of the maintenance personnel can be ensured.

Description

technical field [0001] The invention relates to a door lock system for locking an equipment door of a cabinet type equipment, and also relates to a control method of the door lock system. Background technique [0002] The door lock performance of cabinet-type equipment is crucial to the safety of cabinet-type equipment. For example, with the increase of power and voltage levels of inverters and other equipment, the electrical lockability of cabinet doors where these high-voltage equipment are installed has increasingly become a concern for manufacturers. The increase of the voltage level not only needs to better ensure the working environment of the equipment in the cabinet, but also needs to take strict safety measures to protect the personal safety of the operation and maintenance personnel. [0003] At present, many high-voltage cabinet doors mainly use traditional mechanical interlocking to realize the locking control of the cabinet door. Due to the defect that the mech...

AI Technical Summary

Problems solved by technology

[0008] The second technical problem to be solved by the present invention is to provide a control method for the door lock system of cabinet-type equipment, which overcomes the defect in the prior art that the cabinet door is opened by mistake when the equipment in the cabinet is in the power-on state, which brings safety hazards to maintenance personnel

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