Support device and air conditioning system for vehicle

A support device for securing a set of first tubes and a set of second tubes to an external member, the support device being outside an air conditioning case of a vehicle air conditioning system, the support device comprising:

• a first bracket separated from the air conditioning case and including a first bracket support supporting the set of first tubes that extends outward from the air conditioning case;
• a second bracket separated from the air conditioning case and including a second bracket support supporting the set of second tubes that extends outward from the air conditioning case;
• and
• a common bracket separated from the air conditioning case and coupled to both the first bracket and the second bracket, wherein
• the common bracket includes a first tube support and a second tube support,
• the first tube support supports the set of first tubes and faces the first bracket support across the set of first tubes such that the set of first tubes is held by the first tube support and the first bracket support,
• the second tube support supports the set of second tubes and faces the second bracket support across the set of second tubes such that the set of second tubes is held by the second tube support and the second bracket support,
• the second tube support is placed within a range, in a tube alignment direction of the set of first tubes, between opposite ends of the first tube support,
• the second bracket and the common bracket coupled together each have a mating surface mated with each other, and
• the mating surface includes:
• first surfaces extending in an alignment direction of the set of second tubes on opposite sides of the set of second tubes;
• and
• a second surface extending continuously from an end of one of the first surfaces between the set of first tubes and the set of second tubes, the second surface extending in a direction that is tilted toward the set of first tubes from a direction orthogonal to the first surface.