Unmanned helicopter lithium battery isolation charging system based on VICOR power supply module
A technology for unmanned helicopters and power modules, applied in battery overcharge protection, battery disconnect circuit, battery circuit device, etc., can solve problems such as danger, poor safety performance, battery overcharge, etc., and achieve weight reduction and light weight , The effect of reducing the probability of battery overcharging
Pending Publication Date: 2022-03-04
辽宁轨道交通职业学院
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Problems solved by technology
However, the non-isolated charging method has poor safety performance, especially when the key components (MOS tubes, etc.) inside the power supply are damaged, it will overcharge the battery and cause danger.
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[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
[0021] An isolated lithium battery pack charging system for unmanned helicopters based on the VICOR power module, which can safely charge the lithium batteries of unmanned helicopters with a constant current of 10A and a voltage limit of 28.2V. Such as figure 1 As shown, the system includes an isolated power supply unit 11 and an output protection unit 12 . ...
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The invention discloses an unmanned helicopter lithium battery charging system based on a VICOR power supply module, relates to the field of unmanned helicopters, and mainly aims at adopting the high-efficiency and small-size VICOR power supply module to charge a battery on a helicopter and greatly reducing the weight of the charging system on the premise of ensuring the safety. The system comprises an isolation power supply unit and an output protection unit, the isolation power supply unit selects a VICOR-DCM power supply module, adopts voltage and current double closed loop isolation feedback, controls a voltage control pin of the power supply module after PI operation, and realizes constant-current voltage-limiting charging for a battery; and the output protection unit is used for protecting the charging process by adopting a triple protection mode of output control, hardware voltage protection and power supply enabling, so that the battery can be effectively prevented from being overcharged.
Description
technical field [0001] The invention relates to the technical field of unmanned helicopters, in particular to an isolated charging system for lithium batteries of unmanned helicopters based on a VICOR power supply module. [0002] technical background [0003] Unmanned helicopters have flight characteristics such as vertical take-off and landing and air hovering, and play an important role in agriculture, electricity, transportation, etc. Especially in recent years, with the development of power storage systems, sensors, and flight control technologies, unmanned helicopters have developed rapidly. Unlike small unmanned aerial vehicles driven by pure batteries, large unmanned helicopters are still fuel-driven and use lithium batteries as emergency power sources. During the flight, when the main power supply system fails to work normally, the emergency power supply must be relied on to supply power to key electrical equipment such as the flight control system and measurement a...
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Patent Timeline
Login to View More IPC IPC(8): H02J7/00H02H7/18H02M3/28H02M1/44H02M1/14H02M1/32
CPCH02J7/00712H02J7/0031H02J7/00302H02J7/0034H02H7/18H02M3/28H02M1/44H02M1/14H02M1/32H02J2207/20
Inventor 汤宪宇
Owner 辽宁轨道交通职业学院