Turbofan and method of manufacturing the same

A method of manufacturing a turbofan including a rotating plate coupled at a center thereof to a shaft of a drive motor, a plurality of blades radially arranged on a peripheral area of a front face of the rotating plate, and a ring-shaped shroud coupled to front ends of the plurality of blades, comprising:

• forming the ring-shaped shroud and the plurality of blades integrally, in which ends of the plurality of blades have plane surfaces corresponding to the front face of the rotating plate;
• and
• joining the ends of the plurality of blades to the front face of the rotating plate by fusion bonding, wherein:
• the blades and rotating plate are made of a resin material;
• the front face of the rotating plate is bonded directly to the blades;
• and
• the fusion bonding is one of heat fusion and ultrasonic fusion.

A turbofan with a drive motor, comprising:

• a shroud;
• a rotating plate coupled to the drive motor to rotate the rotating plate;
• and
• a plurality of blades radially arranged on a front face of the rotating plate, each of the plurality of blades comprises:
• front and rear ends such that the rear end of each of the plurality of blades has a plane surface corresponding to the front face of the rotating plate and is joined to the front face of the rotating plate and the front end of each of the plurality of blades is integrally formed with the shroud, wherein:
• the blades and rotating plate are made of a resin material;
• the front face of the rotating plate is bonded directly to the blades;
• and
• the fusion bonding is one of heat fusion and ultrasonic fusion.

A method of making a turbofan including a shroud, a rotating plate, and a plurality of blades radially arranged on a front face of the rotating plate, the shroud being coupled to front ends of the plurality of blades, comprising:

• integrally molding the shroud and the plurality of blades, the front ends of the plurality of blades having plane surfaces corresponding to the front face of the rotating plate;
• and
• joining the front ends of the plurality of blades to the front face of the rotating plate, wherein:
• the blades and rotating plate are made of a resin material;
• the front face of the rotating plate is bonded directly to the blades;
• and
• the fusion bonding is one of heat fusion and ultrasonic fusion.