Power management module and method for unmanned aerial vehicle

Abstract

The invention relates to a power management module and method for an unmanned aerial vehicle, and the module comprises a power input end, a mechanical switch, an electronic switch module, an auxiliary source module, an auxiliary module, a load power distribution module and a power output end, the mechanical switch is disposed at the power input end, and the auxiliary source module comprises an auxiliary source voltage conversion module. The auxiliary module comprises a filter circuit, a triode and an optocoupler, when the mechanical switch is closed, the rear end voltage of the mechanical switch is connected to the input positive end of the auxiliary source to supply power to the auxiliary source module, and when the auxiliary source module is powered on, the output voltage of the auxiliary source module is loaded between the grid electrode and the source electrode of the electronic switch to enable the electronic switch to be closed and input and output to be connected to achieve power distribution. The beneficial effects are that the power distribution function is realized by combining the mechanical switch and the electronic switch, the extremely low discharge rate can be realized in the standby storage state, the filter circuit can eliminate the high-frequency jitter at the moment when the mechanical switch is powered on, and the optical coupler and the triode can realize the rapid cut-off of the input and output of the power supply.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to a power management module and method for unmanned aerial vehicles. Background technique [0002] As a weapon and equipment, drones have the advantages of long-term air travel, intelligent controllability, and no threat of casualties. They are favored by all parties, and all parties are stepping up investment. Considering the use of maintenance performance, weapons and equipment must have a certain storage capacity, usually more than 5 years. However, drones powered by lithium batteries face two major problems in long-term storage: one is self-discharge of lithium batteries, and the other is external discharge. With the development of lithium battery technology, the self-discharge rate of lithium batteries has been reduced. Taking lithium fluoride primary batteries as an example, the power loss can generally be controlled within 2% per year. External...

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Problems solved by technology

[0003] In order to solve the deficiencies of the existing technology, and aiming at the problem that the existing power management module can hardly meet the requirement of long-term storage and low discharge rate in the standby state, the low power consumption operation, the purpose of the present invention is to provide a power management module and method for unmanned aerial vehicles, The power distribution function is realized by using an external mechanical switch plus an electronic switch. In the standby storage state, the external mechanical switch is turned off, and the electronic switch based on the MOS tube is turned off. The entire module only has the leakage current of the MOS tube, and the discharge rate can be controlled at Within 1% per year, solve the long-term storage problem of drones

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