Vehicle seat

1. A vehicle seat comprising:

a seat back frame constituting a framework of a seat back;

a blower disposed in the seat back;

a bracket to which the blower is fixed; and

a duct connected to an inlet or an outlet of the blower,

wherein the duct has a first opening provided at one side thereof to which the blower is connected, a second opening provided at another side of the blower, and a flange provided around the first opening,

wherein the blower includes a flat surface portion around the inlet or the outlet, and

wherein the flange is disposed between the flat surface portion and the bracket and held between the flat surface portion and the bracket when the blower is fixed to the bracket.

2. The vehicle seat according to claim 1 , wherein the duct has flexibility or elasticity.

3. The vehicle seat according to claim 1 , wherein the duct has a tubular portion at an edge of the first opening, the tubular portion being disposed in the inlet or the outlet.

4. The vehicle seat according to claim 3 , wherein the tubular portion is spaced apart from a blade member of the blower by a predetermined distance.

5. The vehicle seat according to claim 1 , wherein the duct includes:

a first portion connected to the blower and positioned at one side of the bracket;

a second portion extending from the first portion and positioned at another side of the bracket; and

a third portion extending from the second portion and positioned at the one side of the bracket.

6. The vehicle seat according to claim 1 , wherein the first opening and the second opening open in the same direction.

7. The vehicle seat according to claim 1 , wherein the first opening and the second opening are offset in an upper-lower direction.