| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor armature where an inexpensive resin forming insulator having heat resistance is installed. SOLUTION: The resin forming insulators 60 and 70 installed in the motor armature 10 have shaft insulating parts 62 and 72 arranged between a rotary shaft 20 and a winding wire 50, core end face insulating parts 64 and 74 arranged between the shaft direction end faces 42 and 44 of a core 40 and the winding wire 50, and slot insulating parts 66 and 76 arranged between the slot 41 of the core 40 and the winding wire 50. The outer diameter faces 64a and 74a of the core end face insulating parts 64 and 74 are bent to outer sides where widthwise direction center parts are set to be apexes in projecting forms. End face clearances 68 and 78 where the outer diameter sides are opened are formed between the shaft direction end faces 24 and 44 of the core end face insulating parts 64 and 74.
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