Fastening device of stator coil heads at high voltage of an alternator

This device within a body 1 includes insulating spacers 13 mounted on the outer surfaces of the bars 16 of the coil heads, auxiliary spacers 18 mounted between the bars 16, a body 1, the elastic abutments 15 and plate 14. The body 1 is formed by two coaxial truncated cones 2 and 3 and a connecting core portion 4. Each plate 14 is housed between two insulating spacers 13 and these latter are placed between the bars 16 of the coil ends and the elastic stoppers 15. the spacers 13 parts, the plates 14, the elastic stoppers 15 and the side surface of the body 1 define cooling channels