Distribution system and distribution unit

Abstract

The invention discloses a distribution system and a distribution unit. The distribution system comprises a cable module, an electrical device and a distribution unit. The distribution unit comprises a first input end, a second input end, a first output end, a second output end, a fourth connector, a controlled switch and a first sensing module. The first sensing module senses whether a second connector plugged into the fourth connector is pulled out, if so, generates a second driving signal to the driving end of the controlled switch, and if not, generates a first driving signal to the driving end of the controlled switch. According to the disclosed contents, the technical scheme disclosed by the invention can effectively prevent high-voltage DC load arcs from spraying out when a connector plugged in a distribution unit side and / or an electrical device side is pulled out under the conditions that the electrical device and the cable module for connection in a conventional network are not substantially reconstructed, the size of the distribution unit is not increased, and the cost is only increased by a small amount, thus the personal safety of operators is protected.

Description

technical field [0001] The present invention relates to the first technical field, in particular to a power distribution system and a power distribution unit. Background technique [0002] In the current data center computer room, under the background of energy saving and emission reduction, the data center has evolved from the traditional AC UPS (Uninterruptible Power System, uninterruptible power supply) power supply and distribution architecture to 240V HVDC (high-voltage direct current, high-voltage DC ) power supply architecture has gradually become a trend. At present, most of the first input connectors of commercial IT equipment use IEC (International Electro Technical Commission, International Electrotechnical Commission) standard C13 / C19 connectors. 240V HVDC power supply is popularized in a large number of old computer rooms, and the input connector C13 / C19 of electrical equipment will not be changed during power supply and distribution transformation. Considering ...

AI Technical Summary

Problems solved by technology

[0005] Among them, using the connector 702 of 240V DC or higher DC voltage level as the output interface can effectively suppress the high-voltage arc blowout caused by the pull-out operation on the PDU 70 side. The connector 7041 on the side is still the original AC connector, so when the connector 705 is pulled out due to a malfunction on the server 704 side, it will still cause the cut-off high-voltage DC load arc to spray out, endangering the safety of the operator, and there are extreme high security risk

[0006] In addition, the cost and volume of the dedicated high-voltage DC connectors used in the PDU 70 are much higher than those of general-purpose AC connectors, resulting in a substantial increase in the volume and cost of the PDU 70 compared with common AC PDUs.

[0007] In addition, the cable connector 703 used to connect the server 704 and the PDU 70 also needs to use a dedicated high-voltage DC connector, which increases the cost

[0008] Furthermore, the high-voltage DC arc will cause damage to the contacts of the connector when the high-voltage DC current is hot-swapped, which limits the life of the hot-swappable connector. The current high-voltage DC connector in the industry Hot plug life is generally about 50 times

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