Assembled type waterproof power distribution cabinet with automatic temperature control function

Abstract

The invention discloses an assembled type waterproof power distribution cabinet with an automatic temperature control function. The assembled type waterproof power distribution cabinet comprises a base, a cabinet body and a top cover; a concave sliding groove is formed in the base; convex beams and pulleys are arranged on the bottom edges of three cabinet bodies relatively; matched hasp locks are arranged on the adjacent framework vertical columns and cross beams of the first cabinet body and the second cabinet body, and the adjacent framework vertical columns and cross beams of the second cabinet body and the third cabinet body respectively; bent telescopic sleeve pipes are also adopted on the top parts of the adjacent cabinet bodies to form sealed electric wire and cable channels; each cabinet body is also provided with an air inlet, an air outlet, a heat dissipation apparatus and an automatic control apparatus; and the V-shaped top cover can be stably embedded and inserted in clamping grooves formed in the top parts of the first cabinet body, the second cabinet body and the third cabinet body. The power distribution cabinet can be assembled onsite, so that the size of the single cabinet body can be reduced, and the power distribution cabinet is convenient to transport and high in stability after assembling; therefore, integration in form is realized while circuit interconnection is also achieved; and in addition, the power distribution cabinet is excellent in waterproof and heat dissipation functions, and convenient and flexible to use.

Description

technical field [0001] The invention relates to the technical field of power distribution equipment, in particular to an assembled temperature self-control waterproof power distribution cabinet. Background technique [0002] Distribution cabinet, a box in which electrical appliances and their wiring are placed to distribute electrical energy. Collectively referred to as the power distribution center. They are centrally installed in the substation of the enterprise, and distribute the electric energy to the lower-level power distribution equipment in different locations. Its classification is generally divided into first-level power distribution equipment, collectively referred to as power distribution center. They are centrally installed in the substation of the enterprise, and distribute the electric energy to the lower-level power distribution equipment in different locations. This level of equipment only relies on step-down transformers, so the requirements for electri...

AI Technical Summary

Problems solved by technology

[0003] However, it is very troublesome to disassemble the general power distribution cabinet after installation, which is not conducive to replacement and maintenance. Ordinary power distribution cabinets are fastened by screws. In this way, the screws are often easy to rust for a long time, which is even more inconvenient. easy to disassemble

Moreover, due to the many functions and large volume of the existing power distribution cabinets, the components are generally welded together when leaving the factory, so the transportation is extremely inconvenient. After arriving at the installation site, it will also cause inconvenience in installation due to size and weight problems.

[0004] In addition, the power distribution cabinets used in power plants and substations should meet the relevant requirements of the GB3906-1991 "3-35 kV AC metal-enclosed switchgear" standard. In the working state of high current, the contact resistance increases due to factors such as surface oxidation, corrosion, loosening of fastening bolts, and aging of contacts at the junction of dynamic and static contacts and the connection of busbars, which causes the temperature of the contacts or joints to rise. The degree of overheating will continue to increase, which will affect the insulation performance and equipment life. In addition, due to the sealed structure of the power distribution cabinet, the temperature of the electronic components in the power distribution cabinet will gradually rise. When the operating temperature of the components is lower, the electronic components in the power distribution cabinet will fail, which will make the power distribution cabinet unable to operate normally

The heat dissipation effect of the existing power distribution cabinet is not good, and the heat loss cannot be automatically controlled

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