Patent ID: 8177485
Filing Date: 2012-05-15
Classification: F04D,F16D

Abstract:
1. A cross flow fan structure, comprising: a) a housing integrally formed by plastic material in an injection molding process, the housing having a first side plate, a second side plate, and an L-shaped air deflector disposed between both side plates, the first side plate having a first mounting hole while the fight second side plate has a second mounting hole with a greater diameter, a flange being formed at the rim of the second mounting hole; b) a first damping/positioning body having a shaft sleeve and a cushioning rubber sleeve, the cushioning rubber sleeve enclosing the shaft sleeve in such a way that a shaft mounting hole is exposed at an internal side of the first damping/positioning body, the cushioning rubber sleeve further having a ring groove for installation of the cushioning rubber sleeve within the first mounting hole; c) a cross flow fan integrally formed by plastic material in an injection molding process, a first side of the cross flow fan having a metal shaft fitting into the shaft mounting hole of the shaft sleeve, a second side of the cross flow fan having a third mounting hole in an axial direction; d) a second damping/positioning body made of rubber and tightly fitting into the third mounting hole of the cross flow fan, a flange being positioned at the external side of the second damping/positioning body while a mounting hole is provided in the axial direction; e) a motor having a shaft holder and a projecting driving shaft at an end face thereof, at least one positioning hole being provided in the end face of the motor and radially displaced from the shaft holder; f) a mounting base having a mounting face disposed at an internal side thereof and corresponding to the flange of the second mounting hole, an external side of the mounting base having a ring seat with an internal diameter for mounting the front part of the motor with a corresponding outer diameter, the mounting face having a mounting hole at the center thereof for mounting the shaft holder of the motor in place, the periphery of the mounting hole having a locking hole corresponding to the at least one positioning hole of the motor, the mounting base and the motor being secured together by inserting a screw through the locking hole into the corresponding positioning hole from the internal side toward the external side whereupon the mounting face of the mounting base is mounted on the flange by inserting a screw from the external side toward the internal side, the driving shaft of the motor being extended into the mounting hole of the second damping/positioning body in a tightly clamping state for driving the cross flow fan in rotational operation, whereby a cross flow fan module made by plastic material is created.