Lithium-Ion Power Supply for Mobile X-Ray Apparatus
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Solution Overview
Problem
Conventional X-ray apparatuses using lead-acid batteries are cumbersome, have a short lifespan, and pose environmental hazards, making them inconvenient for mobile X-ray imaging, especially for patients with mobility issues.
Innovation Solution
A mobile X-ray apparatus equipped with a lithium-ion battery power supply system that includes a battery management system (BMS) for controlling overcurrent, overcharge, and temperature, along with a discharge and charge FET to manage power efficiently, and a charger that communicates with the controller via a CAN protocol, ensuring safe and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If lead-acid batteries are used in mobile X-ray apparatus, then the apparatus can be powered, but the apparatus becomes bulky and heavy
Solution Approach 1:
The patent changes the chemical composition and electrical parameters of the battery system by using lithium-ion batteries with higher energy density compared to lead-acid batteries. This parameter change enables the power supply to provide the same operating power with significantly reduced weight and increased lifespan, directly resolving the contradiction between weight and reliability
2Ease of operation
If lead-acid batteries are used in mobile X-ray apparatus, then the apparatus can be powered, but the apparatus becomes cumbersome and difficult to move
Solution Approach 1:
The patent changes the physical parameters of the power supply by adopting lithium-ion battery technology which offers higher energy density. This parameter change reduces the weight of the power supply while maintaining adequate operating power, thereby improving the mobility and ease of operation of the mobile X-ray apparatus
3Ease of manufacture
If lead-acid batteries are used in mobile X-ray apparatus, then the apparatus can be powered, but hazardous materials are released into the environment
Solution Approach 1:
The patent changes the chemical composition parameters of the battery system by replacing lead-acid chemistry with lithium-ion chemistry. This parameter change eliminates the release of hazardous lead and sulfuric acid materials into the environment, resolving the contradiction between manufacturing cost and environmental harm while lithium-ion batteries provide more eco-friendly operation
Data Source
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AI summary
A mobile X-ray apparatus includes: an X-ray radiation device; a controller configured to control the X-ray radiation device; a power supply configured to supply operating power to the X-ray radiation device and the controller via a lithium ion battery and control overcurrent occurring during X-ray emission by the X-ray radiation device; and a charger configured to charge the power supply. Each of the controller, the power supply, and the charger is embodied in a physically separate module, and each of the power supply and the charger is encased in a metal case.