ELECTRICALLY INSULATING RESIN SHEET FOR MOTORS AND PROCESS FOR PRODUCTION THEREOF
    1.
    发明申请
    ELECTRICALLY INSULATING RESIN SHEET FOR MOTORS AND PROCESS FOR PRODUCTION THEREOF 审中-公开
    电动机电绝缘树脂片及其生产工艺

    公开(公告)号:US20130309481A1

    公开(公告)日:2013-11-21

    申请号:US13982521

    申请日:2012-02-02

    IPC分类号: H02K3/34

    摘要: Provided are: an electrically insulating resin sheet for motors, which is used for achieving the insulation between coil wires or between a coil wire and an iron core in a motor, and which has high heat resistance, high electrical insulation performance and a high insulation breakdown voltage; and a process for producing the electrically insulating resin sheet. The electrically insulating resin sheet for motors, which is provided with a porous resin layer comprising a thermoplastic resin, is characterized in that the resin sheet has a relative permittivity of 2.0 or less at 1 GHz. It is preferred that the porous resin layer has an average cell diameter of 5.0 μm or less and contains cells in such an amount that the porosity is 30% or more.

    摘要翻译: 提供:电动机用电绝缘树脂片,其用于实现电动机中线圈线之间或线圈线和铁芯之间的绝缘,并且具有高耐热性,高绝缘性能和高绝缘击穿 电压; 以及电绝缘性树脂片的制造方法。 具有热塑性树脂的多孔树脂层的电动机用电绝缘树脂片的特征在于,1GHz时的树脂片的相对介电常数为2.0以下。 优选多孔树脂层的平均泡孔直径为5.0μm以下,并且含有孔隙率为30%以上的孔数。