Centrifugal fan
一种离心式风扇、壳体的技术,应用在非变容式泵、非容积式泵、液体燃料发动机等方向,能够解决检查电路基板132钎焊状态等问题
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[0023] [1] Structure of Centrifugal Fan
[0024] figure 1 is a perspective view of a centrifugal fan 100 according to an embodiment of the present invention, figure 2 is a top view, image 3 It is a cross-sectional view including the center of the shaft 125 as the rotation axis. The centrifugal fan 100 includes a substantially disk-shaped casing 150 composed of an upper casing (first casing) 110 and a lower casing (second casing) 130 . In addition, in the description of the embodiment, descriptions of "upper" and "lower" added to constituent elements indicate image 3 The directions in the middle do not specify the posture of the centrifugal fan 100 in an actual device.
[0025] The upper case 110 is made of resin, and a suction port 111 is formed at the center thereof. In addition, substantially triangular-shaped flanges 112 protruding radially outward are formed at four places on the outer periphery of the upper case 110 . like figure 1 As shown, on the upper surface...
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