Disconnection protection structure of a rotary transformer-type resolver

摘要

An insulating tube covers a crossover (60) in a state the outermost ends of the insulating tube are secured to the crossover. Spaces between insulating tube units (611,612,613) are formed to absorb the difference of thermal coefficients of crossover and insulating tube to prevent disconnection of the crossover from rotary transformer output winding (65) and resolver excitation windings (64). The insulating tube is configured from the insulating tube units. The rotary transformer output winding is wound to an inner core (62), and the resolver excitation windings are wound to a resolver rotor (63).