Semiconductor refrigeration air supply heat radiation type high-voltage switch cabinet

Abstract

Provided is a semiconductor refrigeration air supply heat radiation type high-voltage switch cabinet. The semiconductor refrigeration air supply heat radiation type high-voltage switch cabinet comprises a cabinet body in a cuboid shape, the cabinet body is formed by a left side plate, a right side plate, a top board, a base plate, a rear side plate, and a cabinet door, a separating plate is arranged between the left side plate and the right side plate in a horizontal manner, the left side plate and the right side plate are respectively provided with shutters, a left vertical plate and a right vertical plate are arranged between the top board and the base plate, the left vertical plate is parallel and adjacent to the left side plate, the right vertical plate is parallel and adjacent to the right side plate, the left vertical plate and the right vertical plate are uniformly provided with air vents, electrical elements are respectively arranged at the right side of the left vertical plate and the left side of the right vertical plate, an air quantity rotation adjusting mechanism is arranged between the center of the top board and the center of the base plate, and the upper surface of the top board is provided with a refrigeration air supply device communicated with the air quantity rotation adjusting mechanism. According to the semiconductor refrigeration air supply heat radiation type high-voltage switch cabinet, the structure is simple, the operation is easy, the heat radiation effect is good, the energy consumption is low, the reliability is high, the dustproof effect is good, the electrical elements in the cabinet body can maintain the temperature for good work state via a structure for adjusting the air supply amount in multiple ways, and the service lifetime of the electrical elements is extended.

Description

technical field [0001] The invention relates to an electric device, in particular to a high-voltage switchgear of semiconductor refrigeration, air supply and heat dissipation. Background technique [0002] High-voltage switchgear refers to the role of on-off, control or protection in power system power generation, transmission, distribution, power conversion and consumption. High-voltage switchgear is used as electrical products with a voltage level of 3.6kV~550kV, and high-voltage isolating switches And grounding switch, high-voltage load switch, high-voltage automatic recloser and sectionalizer, high-voltage operating mechanism, high-voltage explosion-proof power distribution device and high-voltage switchgear and other major categories. [0003] The heat generated by the electrical components installed in the high-voltage switchgear needs to be discharged continuously to ensure the normal operation of the electrical components. At present, the method and structure adopte...

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Problems solved by technology

At present, the method and structure adopted for heat dissipation of electrical components in the switchgear have the following defects: 1. Since the switchgear is generally high in height, vertical ventilation is adopted, the air path is long, and the cold air at the end of the air path has been heated. Therefore, the temperature in the switch cabinet is still high, and the heat dissipation effect is poor, which leads to shortened service life of electrical components; 2. There is more dust at the air inlet of the air duct, so that the wind entering the switch cabinet carries more dust; 3. The electrical components are long-term After use, dust is easy to accumulate in the depressions and irregular protrusions of electrical components, which reduces the service life of electrical components and creates potential safety hazards (possibly causing short circuits); Larger, low cooling efficiency

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