Rotary connection unit, connection channel selection device, and charging equipment

Abstract

The invention provides a rotary connection unit, a connection channel selection device and charging equipment. The rotary connection unit comprises a pedestal assembly which comprises a bottom plate,a pedestal side wall and a first contact element group, an upper cover assembly which comprises an upper cover plate, an upper cover side wall, a second contact element group and a telescopic contactelement group, a rotating mechanism which is arranged between the base assembly and the upper cover assembly and is used for controlling the upper cover assembly to rotate relative to the base assembly, and a telescopic control mechanism which is arranged in a cavity formed after the pedestal assembly and the upper cover assembly are matched and is used for controlling the telescopic contact element group to extend out of a side wall of the upper cover or retract into the side wall of the upper cover, wherein the pedestal side wall is provided with a wire inlet, and the second contact elementgroup is respectively connected with the first contact element group and the telescopic contact element group. The rotary connection unit is simple in structure and easy to control, the efficiency, flexibility and stability of the electrical connection between a power supply device and a power receiving device can be improved, and the cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of charging devices, in particular to a rotary connection unit, a connection channel selection device and a charging device. Background technique [0002] As the country's support for the new energy field increases year by year, the popularity of electric vehicles is also increasing, and more and more charging equipment as electric vehicle charging and supplementary facilities appear in people's daily life. [0003] Existing charging equipment is mainly divided into AC piles and DC piles, among which DC piles can meet the urgent needs of emergency power replenishment for electric vehicles due to their relatively high power. However, in actual station use scenarios, it is rare that charging piles need to be fully loaded, and at the same time, short-term high power fluctuations will affect the power supply network. In order to avoid this situation, it is very important for the charging pile to intelligently a...

AI Technical Summary

Problems solved by technology

This distribution method technology is relatively mature, but due to its own circuit design, a large number of electronic switches are required to perform repeated on-off according to complex requirements, and the stability will also decrease.

On the other hand, a large number of electronic switches also directly increase the cost of equipment and later maintenance costs

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