Grounding device for outdoor switching power supply filter

Abstract

The invention discloses a grounding device for an outdoor switching power supply filter; the device comprises a ground cylinder, a grounding rod is rotatably connected in the ground cylinder in a sealed manner, a grounding metal ring is embedded in the side wall of the grounding rod, a grounding wire electrically connected with the grounding metal ring is arranged on the grounding rod, and a scraping ring is embedded in the ground cylinder. A threaded cylinder is fixedly connected to the center of the lower end of the grounding rod, a threaded rod is in threaded connection with the interior of the threaded cylinder, the threaded rod is fixedly connected to the inner bottom of a ground cylinder, two memory springs are fixedly connected to the inner bottom of the ground cylinder, a top plate is fixedly connected to the upper ends of the memory springs, and a containing groove is formed in the side wall of the grounding rod. Sunlight irradiates on the memory springs through the condensation convex lens, the memory springs are heated to push the grounding rod to move up and down and move relative to the scraping ring, so that a rusted oxide layer is scraped, a good grounding effect of the power supply filter is kept, and the filtering function of the power supply filter is guaranteed.

Description

technical field [0001] The invention relates to the technical field of accessories related to power supply filters, in particular to a grounding device for an outdoor switching power supply filter. Background technique [0002] The power filter is generally installed inside the chassis of the load equipment to suppress the EMI noise generated by the power equipment and prevent them from entering the AC power grid to interfere with other electronic equipment. [0003] When the power filter is installed, the ground wire of the power filter is generally connected to the chassis of the load equipment for grounding. However, for outdoor switching power supplies, in order to prevent the chassis of the switching power supply from being corroded, it is necessary to use a special grounding device for grounding, but the traditional After the grounding device is inserted into the ground for a long time, a layer of rust and oxide layer will be formed on the metal surface, which greatly ...

AI Technical Summary

Problems solved by technology

[0003] When the power filter is installed, the ground wire of the power filter is generally connected to the chassis of the load equipment for grounding. However, for outdoor switching power supplies, in order to prevent the chassis of the switching power supply from being corroded, it is necessary to use a special grounding device for grounding, but the traditional After the grounding device is inserted into the ground for a long time, a layer of rust and oxide layer will be formed on the metal surface, which greatly increases the grounding impedance of the power filter. When the power filter is working, only a part of the interference signal can pass through the power filter, reducing the filter performance

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