Main unit cabinet of compact power supply cabinet, assembly method thereof, and component arrangement method in the cabinet

Abstract

The invention discloses a compact main unit cabinet of a power cabinet, an assembly method thereof and an arrangement method for components therein. The compact main unit cabinet of the power cabinet comprises a main unit cabinet body, a power module unit arranged at the upper part, an electric plate vertically arranged at the middle, a magnetic component system arranged at the lower part, and a cooling air passage system arranged at the rear region; the power module unit comprises an integrated radiator, a power switch apparatus, a direct current support capacitor and a control circuit board stacked in the front and back; the magnetic component system comprises more than two sub-components stacked in the vertical direction. The compact main unit cabinet of the power cabinet is convenient for placing components, the cooling performance is good, the cabinet volume is small, the compact arrangement for the components in the power cabinet and good cooling effect are effectively realized, and moreover, the structure is simple, and the manufacturing and mounting are easy to realize. The cabinet body has advantages that the operation and maintenance are performed from the front, a reliable wall / barrier is arranged at the back side, the cabinet body is compact, and the floor space is small.

Description

technical field [0001] The invention relates to the technical field of power electronic equipment. Background technique [0002] Power cabinet, as a power electronic conversion device, is an industrial achievement of the development of modern power electronics technology. It is generally equipped with power switching devices (IGBT, etc.), magnetic components (transformers, reactors, etc.) and power distribution components (switches, etc.) Components are widely used in many fields such as new energy (solar photovoltaic / wind power, etc.), power grid, etc. The high power density, stable working performance, and convenient operation and maintenance of high-power power supply cabinets are not only the needs of users, but also the goal of the industry. The power density, reliability and operation and maintenance of the power cabinet directly affect the market application competitiveness of the power cabinet, and whether the heat dissipation design and the system structure layout ...

AI Technical Summary

Problems solved by technology

[0006] With the development of the industry, various forms and schemes have emerged in the design of power cabinets. At present, most of the existing power cabinets have problems with large size, heat dissipation and maintenance: some power cabinets have many components, and the unreasonable placement of components leads to The cabinets are large in size and low in power density; some devices are inconvenient to install and maintain due to unreasonable device placement and space layout, and interfere with each other; some have multiple air duct designs, but the structural design is complicated and the cost is high. Even the heat dissipation effect is not good; most of the power cabinets need to reserve a certain operating space and heat dissipation space around the power cabinet when they are used on site, which increases the cost of customers and limits the use of power cabinets

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