Uninflammable dynamoelectric machine having coil windings and core
encapsulated with unsaturated polyester resin-filler composition
    6.
    发明授权
    Uninflammable dynamoelectric machine having coil windings and core encapsulated with unsaturated polyester resin-filler composition 失效
    具有线圈绕组和不饱和聚酯树脂 - 填料组成的不可燃电动机

    公开(公告)号:US4387311A

    公开(公告)日:1983-06-07

    申请号:US247269

    申请日:1981-03-25

    CPC classification number: H02K5/08 Y10S428/921 Y10T428/31794

    Abstract: In a dynamoelectric machine having a stator assembly of coil windings and a core, a heat-dissipating, uninflammable, electro-insulative housing encapsulates the coil windings and the core. The housing is made of a cured molded article or material formed of a resin-filler composition which comprises a liquid unsaturated polyester resin, a finely divided calcium carbonate powder, an inorganic mineral particulate having a particle size larger than that of the calcium carbonate powder, a chopped glass fiber and an aluminum hydroxide powder, wherein the ratio by weight of the calcium carbonate to the mineral particulate is 0.3 to 4, the ratio of the weight of glass fiber to the total weight of the composition is 0.05 to 0.25, the ratio of the weight of the polyester resin to the total weight of the composition is 0.1 to 0.4, the weight ratio of the calcium carbonate powder, the mineral particulate and the glass fiber to the total weight of the composition is 0.15 to 0.80, and the weight ratio of the aluminum hydroxide powder to the total weight of the composition is 0.1 to 0.6.

    Abstract translation: 在具有线圈绕组和铁心的定子组件的电动机中,散热不可燃的电绝缘壳体封装线圈绕组和芯。 壳体由固化的模制品或由树脂填料组合物形成的材料制成,该组合物包括液体不饱和聚酯树脂,细碎碳酸钙粉末,粒径大于碳酸钙粉末的无机矿物颗粒, 短切玻璃纤维和氢氧化铝粉末,其中碳酸钙与矿物颗粒的重量比为0.3〜4,玻璃纤维重量与组合物总重量的比例为0.05〜0.25,比例 聚酯树脂的重量相对于组合物的总重量为0.1〜0.4,碳酸钙粉末,矿物颗粒和玻璃纤维的重量比相对于组合物的总重量为0.15〜0.80,重量 氢氧化铝粉末与组合物总重量的比例为0.1〜0.6。

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