| 摘要 |
PURPOSE:To prevent a winding from being injured, by a method wherein material to surround a core and a winding includes rock wool in place of glass fiber. CONSTITUTION:A molding body 46 to constitute a housing of a motor is formed in that a core 44 with a winding 42 applied thereto is arranged within a metal mold, and a fused molding material is injected into the mold and the molding is performed integrally. The molding body 46 is constituted of resin, inert material, filler and reinforcing agent. Rock wool having diameter 5mum and length 250mum and subjected to silane treatment is used as the reinforcing agent to constitute the molding body 46. Since the rock wool is soft, the winding is scarcely injured during the injection of the molding material.
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