Consumption-reducing security distribution cabinet based on power-on protection circuit

Abstract

The invention discloses a consumption-reducing security distribution cabinet based on a power-on protection circuit to solve the problems that electronic components in a distribution cabinet in the prior art are liable to damage so as to shorten the service life of the distribution cabinet and that a temperature sensor causes a large detection result error because of temperature drift. The consumption-reducing security distribution cabinet comprises a distribution cabinet body, a distribution cabinet door, a ventilation plate, an elliptical vent hole, a draught fan, a temperature sensor, an electromagnetic lock base, a humidity sensor, a temperature compensation circuit, a liquid crystal control screen, a hydraulic hinge, an electromagnetic lock, a microprocessor, a mains interface, a DC power supply port, a power-on protection circuit, a full-bridge rectifier D, a filter circuit and a short-circuit protection circuit. The dust can be prevented from entering the distribution cabinet, thereby effectively ensuring the safety of the electrical components in the distribution cabinet. Further, when temperature or humidity in the distribution cabinet is too high, effective ventilation can be achieved to reduce temperature or humidity. The temperature compensation circuit eliminates the influence of sensor temperature drift and makes measurement results accurate.

Description

technical field [0001] The invention relates to a power-on protection circuit consumption-reducing security power distribution cabinet. Background technique [0002] Power distribution cabinet is assembled in closed or semiclosed metal safe by electrical wiring requirement by switchgear, measuring instrument, protective device and auxiliary equipment or on screen width, forms low-voltage distribution cabinet. A control cabinet (box) for the safety of people and surrounding equipment. During normal operation, the circuit can be connected or disconnected by means of a manual or automatic switch. Cut off the circuit or alarm with the help of protective electrical appliances in case of failure or abnormal operation. Various parameters in operation can be displayed by means of measuring instruments, and certain electrical parameters can also be adjusted to prompt or send out signals for deviations from normal working conditions. Because the internal electronic components of th...

AI Technical Summary

Problems solved by technology

Because the internal electronic components of the security distribution cabinet are in a closed or semi-closed environment, when the temperature in the closed or semi-closed environment is too high, the internal electronic components will be damaged, thereby shortening the service life of the power distribution cabinet; prior art DC power supply cannot be provided independently, and the temperature sensor has a large error in the detection result due to temperature drift

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