High-voltage direct-current power supply

Abstract

The invention relates to the technical field of direct-current power supplies, in particular to a high-voltage direct-current power supply which comprises a cabinet body. A cabinet door is rotationally connected to one side of the outer surface of the front end of the cabinet body, a direct-current power supply is fixedly installed at the upper end of the inner wall of the cabinet body, and a fixed base is fixedly connected to the position, close to the lower end, of the outer surface of one side of the direct-current power supply. A sealing plate is fixedly connected to the position, close to the fixing base, of the outer surface of one side of the direct-current power source, a fixing block is fixedly connected to the position, close to the lower end, of the outer surface of one end of the fixing base, and a plurality of grooves are evenly formed in the outer surface of the upper end of the fixing base. According to the invention, a wiring part is covered by an anti-loosening cover, so that the problem of upward movement of a square nut is avoided, and a wire at the power supply wiring part is stabilized; in addition, the anti-loosening cover can also prevent dust from falling at the wiring part, so that the problem of pollution flashover at the contact part is avoided; and meanwhile, the problem of electric spark of the wire at the wiring part is also avoided, and thus, the problem of fire disasters is avoided.

Description

technical field [0001] The invention relates to the technical field of DC power supplies, in particular to a high-voltage DC power supply. Background technique [0002] High-voltage DC power supply, also known as DC high-voltage power supply, is a power supply that is input by AC mains or three-phase power and outputs a DC voltage of more than several thousand volts or tens of thousands of volts. The output power is hundreds of watts to several thousand watts. Steady current, the earlier DC high-voltage power supply is to step up the AC mains or three-phase power by a power frequency high-voltage transformer into AC high-voltage power, and then rectify and filter to obtain DC high-voltage power. [0003] The Chinese patent discloses a high-voltage direct current, the patent application number is CN202010426295.4, a high-voltage direct current power supply, including a box body, and also includes a side plate, a No. 1 air bag and a strap; the side of the box body is provided ...

AI Technical Summary

Problems solved by technology

[0004] The comparative patent has made improvements to the problem that the high-voltage DC power supply in mountainous areas is difficult to transport. However, if the high-voltage DC power supply is installed in a humid environment, such as coastal areas with high humidity, it is easy to increase the creepage distance at the high-voltage DC power supply wiring, and appear Pollution flashover causes the power transmission of the high-voltage DC power supply to be unstable, and it is easy to cause fires caused by electric sparks; Increase the conductivity of the dust, which will lead to pollution flashover at the wiring. In addition, if the wires at the wiring are loose, electric sparks will easily appear when the power is turned on and off, resulting in a fire.

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