Fanuc Corporation

Fuyuki Ueno

Takeshi Sawada

Provided is a printed circuit board for degradation detection, the printed circuit board having an insulator substrate and a wiring pattern for degradation detection, the wiring pattern being formed on an outer surface of the insulator substrate, and the printed circuit board for degradation detection being attached to a main printed circuit board for which degradation is to be detected. The wiring pattern is formed on, of the outer surfaces of the insulator substrate, a back surface positioned on the main printed circuit board side. The insulator substrate has a penetrating part (through hole, notch part) penetrating from the back surface to a front surface positioned on the side opposite from the back surface.

Printed circuit board for degradation detection

A cooling device includes a fan for blowing air to a control board arranged on the downstream side by rotation of a rotator. The cooling device further includes a bypass structure provided so as to avoid the rotator and configured to oil liquid to flow, at least, from the upstream side of the fan to the downstream side of the fan, and a gutter provided on the upstream side of the fan to lead the oil liquid to the bypass structure.

Cooling device

An object is to provide a deterioration detection sensor of a printed wiring board in which the accuracy of detection is enhanced. A deterioration detection sensor of a printed wiring board is a circuit board which is vertically provided on a printed wiring board, and is soldered to the printed wiring board with a soldering portion at a lower end. The deterioration detection sensor includes a detection surface for detecting a foreign material. The detection surface forms an intersection surface which intersects the planar direction of the printed wiring board. In the deterioration detection sensor as described above, a wiring in the detection surface is broken, and thus the foreign material is detected.

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Yamanashi, Japan

Fuyuki Ueno