Electric control cabinet with intelligent heat radiating ventilation function

Abstract

The invention discloses an electric control cabinet with an intelligent heat radiating ventilation function. The electric control cabinet consists of a control cabinet frame, a base, an upper cover, a cabinet door, an exhaust fan, a control cabinet humiture detecting element and a control loop. The lower part of a rear door and the lower part of a side door are provided with ventilating windows; the side face of the upper cover is also provided with a ventilating window; simultaneously the bottom of the upper cover is provided with the exhaust fan; and the control cabinet is internally provided with the humiture detecting element and an exhaust fan automatic control system. When the temperature in the control cabinet is lower and the humidity in the control cabinet is less, the exhaust fan stops working, the heat radiation and ventilation are realized through the natural convection of the upper ventilating window and the lower ventilating window; when the temperature or the humidity in the control cabinet increases to reach the set upper limit of the working temperature or humidity of the control cabinet, the detecting element in the electrical control cabinet transmits detected temperature and humidity signals to a microcomputer controller, the microcomputer controller automatically controls the exhaust fan to start working so as to carry out forcible heat radiation and ventilation; and when both the temperature and the humidity reach normal ranges, the exhaust fan stops working so as to return to the natural convection, heat radiataion and ventilation states.

Description

1. Technical field [0001] The invention relates to an electric control cabinet, in particular to an electric control cabinet with intelligent heat dissipation and ventilation functions. 2. Background technology [0002] With the improvement of social automation, the application of electrical control cabinets is becoming more and more extensive, especially in the field of automation control, almost all automation control is finally implemented by electrical control cabinets. [0003] However, traditional electrical control cabinets are generally composed of cabinet shells and cabinet doors. There are usually two modes of heat dissipation and ventilation: one is that some electrical control cabinets have upper and lower ventilation windows on the cabinet shell and cabinet doors, which are realized by natural convection. Heat dissipation and ventilation. Second, some electrical control cabinets are equipped with exhaust fans on the cabinet shell or cabinet door, and the forced...

AI Technical Summary

Problems solved by technology

The former, because the heat dissipation is achieved through natural convection, the heat dissipation is relatively slow, especially in summer when the outside temperature is high and the humidity is high, the heat dissipation effect is worse, and frequency conversion often occurs due to poor heat dissipation of the control cabinet and high humidity. Faults such as device alarm or microcomputer crash, and will greatly shorten the service life of electrical components

And the latter, although the exhaust fan is installed, usually does not have a separate control system. As long as the control system is charged, the exhaust fan will always work, which will greatly shorten the life of the exhaust fan in addition to causing energy waste.

[0004] For the electrical control cabinets in the above two cases, the unreliable cooling and ventilation system brings great hidden dangers to the reliability and life of the control system, especially in summer when the temperature is high, the failure rate of the electrical control cabinets increases significantly

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