| 摘要 |
PURPOSE:To make it possible to assemble a variety of fans using common parts by providing a side plate of a fan to which a fan blade is installed and a wind conducting cover in parallel, and making one side of said fan blade in parallel with the side plate of the fan. CONSTITUTION:An angle theta1 between a fan boss 9 and a fan-side plate 10 is equal to an angle theta2 at the cone portion of a wind-conducting cover 2. The fan-side plate 10 and the wind conducting cover 2 are in parallel each other. The shape of a fan blade 11 is formed so that a side 12 which is attached to the fan-side plate is in parallel with a side 13 which opposes the side 12, and the length of a vertical portion 14 is different from the length of a vertical portion 15. Since the angle theta1 is equal to the angle theta2, and the sides 12 and 13 of the fan blade are in parallel, the fan blade 11 can be installed with its top and bottom being inverted upside down or with its position being shifted. Therefore, the fans for different rotary electric machines can be assembled by using common parts. |
