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A method and system for environmental control of an overhead electrical cabinet

A control method and technology of electrical cabinets, applied in the field of electrical cabinets, can solve problems such as hidden dangers in the environmental parameters of electrical cabinets, and achieve the effect of reducing risks and having strong applicability

Active Publication Date: 2022-04-01
CHANGZHOU CHANGFA REFRIGERATION TECH CO LTD
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of unreasonable environmental parameters of electrical cabinets in the prior art and hidden dangers, the present invention provides a top-mounted electrical cabinet environmental control method and system that realizes reasonable environmental parameters

Method used

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  • A method and system for environmental control of an overhead electrical cabinet
  • A method and system for environmental control of an overhead electrical cabinet
  • A method and system for environmental control of an overhead electrical cabinet

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Embodiment Construction

[0045] A method for controlling the environment of a top-mounted electrical cabinet, including a cooling mode, comprising the following steps:

[0046] S01: Set the set temperature in the cabinet, then detect the actual temperature in the cabinet, ambient temperature and ambient humidity, and calculate the ambient dew point temperature according to the ambient temperature and ambient humidity;

[0047] S02: Compare the set temperature in the cabinet with the ambient dew point temperature, and calculate the target temperature in the cabinet according to the comparison result:

[0048] S21: If the ambient dew point temperature + the first set difference value > the set temperature in the cabinet, then the target temperature in the cabinet = the ambient dew point temperature + the first set difference value;

[0049] S22: If the ambient dew point temperature + the first set difference ≤ the set temperature inside the cabinet, then the target temperature inside the cabinet = the s...

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Abstract

The invention relates to the technical field of electrical cabinets, in particular to a method and system for controlling the environment of a top-mounted electrical cabinet. The control methods include refrigeration mode, dehumidification mode and standby mode. The system includes an installation cabinet on which a compressor, an evaporator and a condenser are installed. The working fluid outlet of the condenser is connected to the working fluid inlet of the evaporator, and the working fluid outlet of the evaporator It is connected to the working medium inlet of the compressor, and the working medium outlet of the compressor is connected to the working medium inlet of the condenser. The installation cabinet is provided with an air inlet and an air outlet communicating with the inside of the electrical cabinet. There is an internal fan at the air inlet and / or air outlet, and the evaporator is placed in the cooling air duct. Both cooling and dehumidification are completed by a refrigeration module composed of a compressor, an evaporator, and a condenser. The dehumidification is done through the electrical cabinet The hot air is condensed on the evaporator, and the invention adjusts the environment inside the electric cabinet to ensure that the environmental parameters of the electric cabinet are within a reasonable range.

Description

technical field [0001] The invention relates to the technical field of electrical cabinets, in particular to a method and system for controlling the environment of a top-mounted electrical cabinet. Background technique [0002] There are a large number of electrical components inside the high and low voltage electrical cabinet, the voltage is high and the current is large. Due to the load loss, heat will continue to be generated inside, and the temperature will rise, especially in summer. Therefore, it is necessary to control the temperature inside the cabinet to prevent the influence of excessive temperature rise. The normal operation of electrical components may even affect the safety of electricity consumption and cause accidents; in addition, if the inside of the electrical cabinet does not maintain reasonable environmental parameters (temperature, humidity, etc.), the electrical cabinet also has great potential safety hazards. Contents of the invention [0003] In ord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K7/20G05D27/02
CPCH05K7/20309H05K7/20318H05K7/20354H05K7/20145H05K7/20172G05D27/02
Inventor 李刚孙太尉张智谢庆黄国尧陈广兵
Owner CHANGZHOU CHANGFA REFRIGERATION TECH CO LTD
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