Dual-battery switching structure of portable general life support system adapted to field environment

Abstract

The invention discloses a dual-battery switching structure of a portable general life support system adapted to a field environment, and the structure comprises a buck-boost module electrically connected with an external adapter, and a charging module A and a charging module B for charging a fixed battery A and a detachable battery B. The output ends of the fixed battery A and the detachable battery B are connected with a switching circuit; the output end of the switching circuit and the output end of the buck-boost module are connected with the input end of the main power supply branch and the input end of the single-chip microcomputer power supply branch, and the output end of the main power supply branch is connected with a mainboard of the portable general life support system to supply power to the portable general life support system. The output end of the single-chip microcomputer power supply branch circuit is connected with a power management module used for controlling the charging module A, the charging module B, the switching circuit and the main power power supply branch circuit to work coordinately. According to the invention, dynamic distribution of system power can be realized, power is provided to the system to supply power to the maximum, and charging power does not need to be reserved, so continuous work of the portable general life support system in a field environment is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a power supply device for a portable universal life support system adapted to field environments. Background technique [0002] The extracorporeal life support system can keep the organs alive until the organs recover when treating critically ill patients, and provide time for further diagnosis and treatment or transfer to a professional medical center for treatment. Starting from the actual rescue situation, when the wounded appear, the rescue time is very precious, and sometimes it is necessary to carry out timely rescue on the spot, so the portable universal life support system is very necessary. However, it is difficult to obtain electricity in the field environment, and the types of injuries of the wounded are various. Therefore, the portable general life support system needs to have a certain endurance. [0003] With the continuous development of medical devices, m...

AI Technical Summary

Problems solved by technology

However, this switching method has the following defects: 1) the dual batteries are connected in parallel, and there will be inconsistent output voltages, which will cause some functions of the portable general life support system to be degraded; 2) the priority use of the removable battery cannot be realized, resulting in fixed The service life of the battery is reduced; 3) When the portable life support system is not in use, the battery cannot be automatically shut down, the power consumption is large, and the battery is prone to over-discharge for long-term storage

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