Abstract: A vehicle air conditioner to be installed in a passenger compartment S includes a casing, a piping component, and a seal 60. The casing accommodates a heat exchanger. The piping component supplies a heating medium to the heat exchanger or exhausts the heating medium from the heat exchanger. The seal 60 seals a portion between the casing and a periphery of an opening P of a dash panel P of a vehicle. The dash panel P separates the passenger compartment S from an outside of the passenger compartment S. The piping component is inserted into the opening. The seal 60 has a surface facing the dash panel P and including a notch 60d. The notch 60d is positioned outside the periphery of opening P1.

Abstract: A drainage member disclosed herein includes a drainpipe made of an elastic material and an engaging bevel engaged with a circumferential edge of a through hole of a floor panel from outside a vehicle cabin. The drainpipe includes, as its integral parts, front, rear, and lower engaging stops engaged with the circumferential edge of the through hole from inside the vehicle cabin. The front, rear, and lower engaging stops are discontinuous with each other. The sum of the areas covered by the front, rear, and lower engaging stops is smaller than the area covered by the engaging bevel.

Abstract: A vehicle air conditioner to be installed in a passenger compartment S includes a casing, a piping component, and a seal 60. The casing accommodates a heat exchanger. The piping component supplies a heating medium to the heat exchanger or exhausts the heating medium from the heat exchanger. The seal 60 seals a portion between the casing and a periphery of an opening P of a dash panel P of a vehicle. The dash panel P separates the passenger compartment S from an outside of the passenger compartment S. The piping component is inserted into the opening. The seal 60 has a surface facing the dash panel P and including a notch 60d. The notch 60d is positioned outside the periphery of opening P1.