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An improved internal environment control device and method for power cabinets

A control device and internal environment technology, applied in the direction of computer control, general control system, program control, etc., can solve problems such as fire, malfunction, and damage to cabinet operating equipment, and achieve the effect of ensuring effectiveness and improving reliability

Active Publication Date: 2019-06-11
南京瑞吾电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the temperature and humidity transmitted by the temperature and humidity sensor is inaccurate, it will cause malfunction
After the temperature and humidity controller crashes, its relay output may remain in the state at the time of the crash. If the heater is turned on at this time, the ambient temperature will continue to rise, which may cause damage to the operating equipment in the cabinet, or even cause a fire.

Method used

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  • An improved internal environment control device and method for power cabinets
  • An improved internal environment control device and method for power cabinets

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0020] figure 1 It is the topological structure diagram of the traditional power cabinet temperature and humidity control scheme. The problem with the traditional scheme is that once any link fails, the entire environmental control system will fail, and there will even be a risk of fire. At the same time, the fault detection may not be correctly judged and transmitted to the monitoring background.

[0021] figure 2 It is the circuit connection structure diagram of the present invention. The present invention proposes an improved internal environment control device for a power cabinet, which is characterized by comprising a first sensor 1, a second sensor 2, a first controller 3, a second contro...

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PUM

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Abstract

The invention discloses an improved internal environment control device for a power cabinet. The improved internal environment control device comprises a first sensor, a second sensor, a first controller, a second controller, a first watchdog circuit, a second watchdog circuit, a first and-gate circuit, a second and-gate circuit, an or gate circuit and a controlled device. The invention further provides an improved internal environment control method for the power cabinet. A controller fault is detected through the watchdog circuits, the output of a faulted device is shielded, meanwhile all of control rights are obtained by another controller, and the technical problem that a started device cannot be possibly switched off during device shutdown by adopting a traditional topology control scheme is solved.

Description

Technical field [0001] The invention relates to an improved internal environment control device and method for power cabinets, and belongs to the technical field of internal environment control of power cabinets. Background technique [0002] According to GB / T4798.5 "Requirements for Application Environmental Conditions of Electrical and Electronic Products", any electronic product must work in a certain temperature and humidity range. With the vigorous advancement of smart grids in recent years, there are more and more types of power cabinets, and the selection of electronic components and components in the cabinets is becoming more and more sophisticated, and some components have high requirements for the application climate environment. The normal and reliable operation of the power grid depends on the stable operation of the power equipment in the power grid. The reliable operation of the protection and communication equipment in the power cabinet is inseparable from a certa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
CPCG05B19/042G05B2219/2642
Inventor 程文峰
Owner 南京瑞吾电气有限公司