Cooling and heating box and vehicle

The utility model discloses a cooling and heating box and a vehicle, and the cooling and heating box comprises a semiconductor, a first fan and an air duct. The semiconductor comprises at least one of a heating end and a cooling end, and cooling fins are arranged on the semiconductor. The first fan is arranged in the side direction of the semiconductor and used for blowing air to the cooling fins. The air duct is arranged on the side, away from the first fan, of the semiconductor, one end of the air duct comprises an air inlet, the other end of the air duct comprises an air outlet, the air inlet is used for receiving air blown through the cooling fins by the first fan, and the end, provided with the air outlet, of the air duct extends to the position below a seat of the vehicle or outside the vehicle. According to the cold and warm box, by arranging the air channel, heat generated by the semiconductor can be guided to the proper space outside the cold and warm box for rapid and efficient heat dissipation, meanwhile, the body parts of passengers can be prevented from being grilled, and the comfort level of the passengers is improved.