Novel filtering assembly

Abstract

The present invention provides a novel filtering assembly comprising a shielding shell and a power supply filter. The shielding shell comprises a base and an upper cover. The shape of the upper cover is a single side opening cylindrical cavity structure. One end of the opening side is an inserting terminal. An external diameter of the inserting terminal is smaller than that of the cylindrical cavity structure. The shape of the base is a round pie-shaped structure. One face of the base is provided with a ring of a round notch of which the size matches the size of the inserting terminal, and a plurality of installation grooves are circularly distributed in an edge of the other face of the base. The installation grooves are of U shape, and vertical segment ends of U-shaped opening sides communicate with the edge of the base. Installation holes running through the base are included in U-shaped installation groove regions and close to the outside of the round notch. The power supply filter includes a lightning protection module used for short-circuiting an instantaneously appeared large voltage at a connection terminal to a discharging ground terminal, and the power supply filter is overall coated with a heat conductive insulating casting glue. The novel filtering assembly is suitable for outdoor application, and it is convenient to detect the validity of lightning protection elements.

Description

technical field [0001] The invention relates to the field of electromagnetic compatibility, in particular to a novel filtering component applied to power filtering. Background technique [0002] The power filter is a device connected between the power supply and the electrical equipment to filter out clutter. The existing power filter is mostly used in the indoor environment and does not have the function of outdoor application; in addition to being inconvenient for outdoor installation and use, due to It needs to be used in the rain, snow and lightning environment, and must have lightning protection and waterproof measures, and ensure good grounding performance and filtering effect; the performance of the lightning protection module will be adversely affected by the increase in the number of effective protection or the impact of lightning strike intensity Changes, or even loss of protection, and for filter components that have been shielded and sealed, it is troublesome to ...

AI Technical Summary

Problems solved by technology

[0002] The power filter is a device connected between the power supply and the electrical equipment to filter out clutter. The existing power filter is mostly used in the indoor environment and does not have the function of outdoor application; in addition to being inconvenient for outdoor installation and use, due to It needs to be used in the rain, snow and lightning environment, and must have lightning protection and waterproof measures, and ensure good grounding performance and filtering effect; the performance of the lightning protection module will be adversely affected by the increase in the number of effective protection or the impact of lightning strike intensity Changes, or even loss of protection, and for filter components that have been shielded and sealed, it is troublesome to detect the effectiveness of the components of the lightning protection part, and it is difficult to find out whether effective lightning protection has occurred through traditional lightning protection measures. To solve these problems, it is necessary to design a new filter component

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