Fuel cell vehicle including a protected component

A fuel cell vehicle comprising:

• a protected component comprising one or more of a battery, a fuel cell, and a hydrogen supply component;
• and
• a hydrogen tank unit comprising hydrogen tanks configured to store hydrogen gas used for power generation of the fuel cell, and a coupler coupling the hydrogen tanks to one another, the hydrogen tank unit being disposed so as to cover at least a vertically lower side of the protected component,
• wherein the hydrogen tank unit further comprises a hydrogen tank case accommodating the hydrogen tanks, the hydrogen tank case having a cross-section with at least one recess, and the protected component is disposed in the recess, and
• wherein the hydrogen tank case has a plurality of recesses in an upper portion thereof, and a plurality of batteries are respectively disposed in the plurality of recesses.