Low-noise and efficient cooling axial flow fan of central air conditioner outdoor unit
A central air-conditioning and outdoor unit technology, applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of high noise and reduced fan efficiency, and achieve the goals of reducing airflow noise, improving fan efficiency, and increasing the annular area Effect
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[0015] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:
[0016] see Figure 1 to Figure 4 , the present invention provides a low-noise and high-efficiency central air-conditioning outdoor unit cooling axial flow fan, comprising an air cylinder (1), a motor bracket (2) arranged above the air cylinder (1), and a motor bracket (2) installed at the center of the motor bracket (2). The motor (3), the hub (5) connected with the motor rotating shaft (4) and several blades (6) fixed on the hub (5), the hub (5) includes the hub inner liner (7), welded A shaft sleeve (8) connected to the center position of the hub inner liner (7); the shaft sleeve (8) matches the rotating shaft (4) of the motor; The hub connecting plate (9) is uniformly distributed in the center of the shaft sleeve; several screw holes (10) are arranged on the hub connecting plate (9); the initial The edges on both sides of the part (20)...
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