Technological development and manufacturing technology of four-phase common-mode inductor

Abstract

The invention discloses a technological development and manufacturing technology of a four-phase common-mode inductor. An annular magnetic core is arranged, the lower end of the annular magnetic coreis provided with a common-mode inductor base, an No.1 pin penetrates the lower end of the common-mode inductor base, an No.2 pin penetrates one side of the No.1 pin at the lower end of the common-modeinductor base, an No.1 enamelled round copper wire coil is wound and arranged at the outer surface of the annular magnetic core, a ribbon is arranged at one side of the No.1 enamelled round copper wire coil at the outer surface of the annular magnetic core, an No.2 enamelled round copper wire coil is wound and arranged at one side of the ribbon at the outer surface of the annular magnetic core, and the upper end of the No.2 pin at the lower end of the No.1 enamelled round copper wire coil is provided with an No.1 coil lead. The technological development and manufacturing technology of the four-phase common-mode inductor can reduce and even eliminate interference, can improve the efficiency of the whole machine, can increase isolation and can improve the safe operation of a system.

Description

technical field [0001] The invention relates to the field of electronic components, in particular to a technical development and manufacturing technology of a four-phase common-mode inductor. Background technique [0002] The function of the charging pile is similar to the fuel dispenser in the gas station. It can be fixed on the ground or wall, and installed in the parking lot or charging station of public buildings and residential areas. It can charge various types of electric vehicles according to different voltage levels. The charging pile The input end of the power grid is directly connected to the AC power grid, and the output end is equipped with charging plugs for charging electric vehicles. There are many and scattered points, wide coverage, short communication distance, and with the development of the city, the network topology requires a flexible and scalable structure, so the reliability of communication is particularly important, and the reliability of communica...

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Problems solved by technology

[0002] The function of the charging pile is similar to the fuel dispenser in the gas station. It can be fixed on the ground or wall, and installed in the parking lot or charging station of public buildings and residential areas. It can charge various types of electric vehicles according to different voltage levels. The charging pile The input end of the power grid is directly connected to the AC power grid, and the output end is equipped with charging plugs for charging electric vehicles. There are many and scattered points, wide coverage, short communication distance, and with the development of the city, the network topology requires a flexible and scalable structure, so the reliability of communication is particularly important, and the reliability of communication refers to That is, the communication system has to withstand the test of harsh environment and strong electromagnetic interference or noise interference for a long time, and keep the communication smooth. On the AC input side, the normal three-phase circuit has a large harmonic, and the harmonic is not only in the communication There will be audio interference in the system, which will affect the charging efficiency, and even threaten the normal operation of the equipment in serious cases. Therefore, it is necessary to add filters at the input and output ends of the charging pile to minimize interference and improve efficiency. It is an important part of the filter. When the existing three-phase common-mode inductors are used, due to the existence of the neutral line N, they cannot meet the requirements and bring certain adverse effects to the actual use. Therefore, we propose a Technology development and manufacturing technology of four-phase common mode inductor

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