X-ray imaging apparatus and X-ray imaging system

An X-ray imaging apparatus comprising:

• a rail assembly;
• a strut assembly mounted to the rail assembly and configured to be extendable and movable along the rail assembly;
• an X-ray imaging assembly mounted on the strut assembly, wherein the X-ray imaging assembly comprises an X-ray tube for generating X-rays;
• a power supply apparatus mounted on the strut assembly to supply power to the X-ray imaging assembly to generate X-rays via the X-ray tube, the power supply apparatus being rechargeable, wherein the power supply apparatus is configured to move with the strut assembly along the rail assembly and to supply power to the X-ray assembly to enable the X-ray tube to generate X-rays at any position along the rail assembly;
• and
• a charging apparatus provided on the rail assembly to charge the power supply apparatus, the charging apparatus comprising at least one charging station provided at a predetermined position on the rail assembly and electrically connected to the power supply apparatus to charge the power supply apparatus when the strut assembly moves to the predetermined position along the rail assembly, wherein the charging apparatus is configured to stop charging the power supply apparatus when the strut assembly moves away from the predetermined position.