The generating set and the electronic equipment which uses that, the electronic control type clock and board thickness setting method of the magnetic circuit in the generating set

摘要

Generating set 20 rotor 21 and the stator (the magnetic core) when it has with 22 and coil 23, hysteresis loss coefficient k _h and eddy loss factor k _e, electrical resistivity ( m), frequency f (Hz), maximum amplitude flux density B _m (T) the formula which consists of applies (1) to board thickness setting of stator 22. Board thickness d of stator 22 (m) by the fact that it sets to the board thickness d of the smallest iron loss which is given with formula (1), iron loss of the magnetic circuit of the generating set is decreased, high improvement of efficiency of the generating set is assured.