| 摘要 |
<p>PURPOSE:To obtain a manufacture of a casting coil excellent in reliability free of peeling due to action of the residual stress of compression over the whole insulating spacer upon resin casting by chamfering the tip of the insulating spacer and a coil conductor support when using. CONSTITUTION:The tip of a cylindrical insulating spacer 7 is chamfered, and this insulating spacer 7 is used to mold so as to envelop with a casting resin 2. This way of chamfering impresses a minus residual stress, e.g. compression to the whole from the spacer tip A to the center A' with the result that the adhesion of the insulating spacer 7 and the casting resin 2 becomes stronger.</p> |
