| 摘要 |
<p>The present invention relates to a blowing fan of an air conditioner for a vehicle. The purpose of the present invention is to provide a blowing fan of an air conditioner for a vehicle, wherein the blowing fan has an improved structure for increasing an air suction rate and the static pressure of discharge air so that the volume, the velocity, and the pressure of the discharge air can be largely improved. A multi-blade type blowing fan of an air conditioner for a vehicle according to the present invention for the purpose has a conical hub at the center thereof and multiple blades which are installed along the periphery of the hub at regular distances and discharge air to the outside of a radial direction after sucking the air from the upper side of the hub, and further has multiple inner blades which are installed to protrude from the upper side of the hub to the suction direction of the air so that the inner blades are capable of discharging the air to the blades outside the radial direction after sucking the air to the side of the hub, wherein the inner blade has a leading edge which is formed at the top there of and is curved in a certain direction so that the flowing direction of the air can be guided in an axial direction when the blowing fan rotates. In addition, the inner blades are radially extended from the central portion of the conical hub toward the blades outside the radial direction, and have widths which become wider gradually toward the blade tips thereof. Furthermore, each of the inner blades has a backward curved and backward inclined shape of which the blade tip is curved with a certain curvature toward the opposite direction of a rotating direction.</p> |
