A radio energy and signal transmission system for spacecraft rendezvous and docking and grid-connected power supply

Abstract

The invention discloses a wireless electric power and signal transmission system for spacecraft rendezvous and docking parallel-operated power supply. One or a plurality groups of wireless electric power transmission units are configured on a spacecraft rendezvous and docking mechanism; each group of transmission units consist of electric power transmitting devices and electric power receiving devices. Wireless transmission of electric power and signals can be achieved by using a technique based on electromagnetic induction principles, under same power transmission conditions, the weight and the size of the system are equivalent to those of a wired electric power transmission mode, the electric power transmission efficiency of the system is greater than 85%, that is, the electric power transmission efficiency is higher than that of the wired transmission mode. By adopting the wireless electric power and signal transmission system, the problems that a power supply mode of a conventional electric connector has high abutting precision requirements, abutting interface design is complex, potential hazard of electric sparks can be caused as contact metal is exposed, and the like, can be solved.

Description

technical field [0001] The invention belongs to the technical field of spacecraft power supplies, and relates to a wireless grid-connected power supply device. Background technique [0002] The existing grid-connected power supply for spacecraft rendezvous and docking is realized through a wired power transmission mode of a grid-connected controller and 4 sets of floating electrical connectors. When grid-connected to supply power, the electrical connection between the two spacecraft is firstly realized through 4 circuit floating disconnectors installed around the docking structure. The number of cores of each circuit floating disconnector is 55 cores, and its outer envelope size is 37.5mm ×37.5mm, the rough positioning of the connectors is completed by the docking mechanism, and the precise positioning is completed by the guide structure of the connector itself; then the grid-connected controller works to realize the bus voltage matching and power transmission between the tw...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to overcome the deficiencies of the prior art and provide a wireless energy and signal transmission system for spacecraft rendezvous and docking and grid-connected power supply. The technology based on the principle of electromagnetic induction is used to realize the wireless transmission of electric energy. Under the condition of power, the weight and size of the system are equivalent to the wired power transmission mode, and the efficiency is greater than 85%, which is higher than the wired transmission mode; it can solve the traditional electrical connector power supply mode that requires high docking accuracy, complex docking interface design, and contact Exposed metal, fire hazards, etc.

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