A kind of unmanned delivery car of heat medium heat preservation, including lower part travel component and upper box;Upper box is erected on the lower part travel component upper end;Upper box includes
food storage box and spare box;
Food storage box is provided with support tray;
Food storage box inside opposite two ends inner wall is provided with installation site for setting up installation support tray;Support tray is plate-shaped box, is installed after parallel to
food storage box bottom;Support tray is hollow, and upper and lower surfaces are respectively provided with water inlet hole and water outlet hole;
Food storage box side surface is hingedly provided with box door;Spare box is set up in
food storage box one side, and is provided with heating water tank and water pump in the inside;Heating water tank is provided with water outlet
pipe and water inlet
pipe, water outlet
pipe is connected after water pump again, and then pass through food storage box wall and be connected with water inlet hole, water outlet pipe passes through food storage box wall and be connected with water outlet hole.Heated
liquid medium is introduced into support tray to the surface of its placed catering is kept warm.