Heat dissipation arrangement unit of electrical cabinet and control method

Abstract

The invention discloses a heat dissipation arrangement unit of an electrical cabinet. Two adjacent electrical cabinets are included; each electrical cabinet is divided into multiple independent power distribution rooms; each power distribution room is provided with an air inlet and a temperature probe; a heat dissipation apparatus is arranged between the two electrical cabinets; the heat dissipation apparatus consists of an air extraction apparatus positioned in the middle and air extraction frames positioned on the two sides; the air extraction apparatus comprises a base, an air cavity and a cover plate; each air extraction frame comprises a bottom plate, a rectangular frame, a weight balancing block and an air cover; a gap is formed between the base and the bottom plate; a gap is formed among the cover plate, the air extraction frame and the adjacent electrical cabinet; the temperature probe signals in all the power distribution rooms are input to a controller; and the controller controls the operation of a motor of a fan. The heat dissipation arrangement unit has the beneficial effects that a gap is formed between the adjacent two electrical cabinets, so that the heat dissipation area is enlarged; the heat dissipation apparatus can be used for heat dissipation; and meanwhile, influence of fan vibration to the electrical cabinets can be reduced. The invention also discloses an electrical cabinet heat dissipation arrangement control method.

Description

technical field [0001] The invention relates to an electric cabinet, in particular to a heat dissipation arrangement unit and a control method of the electric cabinet. Background technique [0002] Electrical cabinets are commonly used electrical equipment, which are used to install electrical components and are usually placed in power distribution rooms. The existing electrical cabinet has the following technical problems: [0003] First, due to the difference in operating current and power, the heat generation of various electrical components is not the same. These electrical components are placed in the same working environment, and the components with large heat generation are easy to affect the components with small heat generation. Therefore, advanced ones The electrical cabinet usually divides the electrical cabinet into multiple spaces, so that the ones with high heat generation are together, and the ones with small heat generation are together to avoid mutual inter...

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Problems solved by technology

[0004] Second, when the electrical cabinets are arranged in the power distribution room, they are usually arranged in one or more rows. Two adjacent electrical cabinets are close together, which reduces the area for heat dissipation. In addition, some cabinets have high temperature. Some have a low temperature, and they are easy to interact with each other when they are close together;

[0005] Third, in the existing electrical cabinets, fans are usually installed on the outer wall of the cabinet or on the cabinet door, or on the top. The problem is that it is easy to generate vibration during use. The fan with higher power will vibrate more. Especially after long-term use, the fan will vibrate greatly when dust accumulates inside the fan. Once these tiny vibrations are transmitted to electrical components, it is easy to produce three The problem is that one is that the terminals of the electrical components are easy to go off-line, resulting in failure, and the other is that the components inside the electrical components (such as resistors, capacitors, etc. on the circuit board) are easy to loosen, which affects the service life of the electrical components. Yes, it is easy to misuse due to vibration

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