Dual-power-supply circuit board capable of preventing wrong insertion and reverse insertion

Abstract

The invention discloses a dual-power-supply circuit board capable of preventing wrong insertion and reverse insertion. The circuit board comprises a power supply termination connector, a power supply1- terminal, a power supply terminal empty terminal, a power supply 1+ terminal, a power supply 2+ terminal, a power supply 2- terminal, a circuit board 1- terminal, a circuit board terminal empty terminal, a circuit board 1+ terminal, a circuit board 2+ terminal, a circuit board 2- terminal, and a circuit board termination connector. The power supply 1- terminal, the power supply terminal empty terminal, the power supply 1+ terminal, the power supply 2+ terminal and the power supply 2- terminal are all installed on the power supply termination connector in the above order. The circuit board 1- terminal, the circuit board terminal empty terminal, the circuit board 1+ terminal, the circuit board 2+ terminal, and the circuit board 2- terminal are mounted on the circuit board termination connector in the above order. According to the invention, under the premise of not occupying the circuit board on a large scale, the empty terminals are arranged at appropriate positions of the connectors, and power supply terminals of different specifications are reasonably placed to ensure that the circuit board is not burnt out even if wrong insertion and reverse insertion occurs.

Description

technical field [0001] The invention relates to the field of dual power supply for circuit boards, and is especially suitable for the field where the power plug of the circuit board itself cannot prevent wrong insertion or reverse insertion, and the wrong insertion of the power supply has a great influence on the performance of the circuit board. Background technique [0002] Existing circuit boards usually require power supplies of various specifications, and for convenience, no matter how many kinds of power supplies are used, only one connector at a specific position on the circuit board is needed to realize this function, so that it can be used in production, assembly, and maintenance. During the process, it is not uncommon for workers to insert wrongly. In this way, for chips with strict power supply requirements, it is easy to burn out or fail to work normally. The connectors can't be completely anti-mistakes and anti-reversed insertion, so it is necessary to prevent e...

AI Technical Summary

Problems solved by technology

[0002] Existing circuit boards usually require power supplies of various specifications, and for convenience, no matter how many kinds of power supplies are used, only one connector at a specific position on the circuit board is needed to realize this function, so that it can be used in production, assembly, and maintenance. During the process, it is not uncommon for workers to insert wrongly. In this way, for chips with strict power supply requirements, it is easy to burn out or fail to work normally. The connectors can not be fully anti-mistakes, anti-reverse insertion, so it is necessary to prevent errors and anti-reverse insertion in the circuit of the power supply design and the arrangement sequence of the plugs.

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