| 摘要 |
The rectifier includes a support (50, 51, 51') for diodes (66) forming part of the rear bearing for the rotor of the machine. A cooling system operates by creating a forced axial flow of cooling fluid across a series of radial cooling fins, enabling the rectifier and hence alternator to operate at high power. The arrangement for rectifying current from a rotating electrical machine includes a support (50, 51, 51') for a number of positive diodes (66), and a support for a number of negative diodes forming part of the rear bearing for the rotor of the machine. A cooling system operates by creating a forced axial flow of cooling fluid across the rectifying diode assembly. The positive diode support has a series of radial cooling fins (60) on its front surface, orientated towards the axis of the machine. The support is made from at least one moulded component (50, 51, 51') with the internally directed face carrying the set of cooling fins. The structure may be attached to the rear bearing at three points, one of which (54) is the junction between two parts of the support, whilst the other points are the two remote ends of the two parts (55).
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