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

Abstract

The invention discloses a dual-battery switching structure of a portable universal life support system adapted to the field environment, including a buck-boost module electrically connected to an external adapter, and A charging modules and B charging modules for charging the fixed battery A and the detachable battery B respectively module, the output terminals of the fixed battery A and the removable battery B are connected with a switching circuit, and the output terminals of the switching circuit and the buck-boost module are connected with the input terminals of the main power supply branch and the single-chip microcomputer power supply branch, and the main power supply branch The output end of the circuit is connected to the main board of the portable general life support system to supply power for it, and the output end of the single-chip microcomputer power supply branch is connected to the power management module for controlling the A charging module, the B charging module, the switching circuit and the coordinated operation of the main power supply branch. The present invention can realize the dynamic allocation of system power, maximize the power supply to the system, and does not need to reserve charging power, thereby effectively ensuring the continuous work of the portable general life support system in the field environment.

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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