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    • 4. 发明公开
    • 전동 공구 및 그 절연 방법
    • 电动工具及其绝缘方法
    • KR1020030047665A
    • 2003-06-18
    • KR1020020023402
    • 2002-04-29
    • 히다치 고키 가부시키 가이샤
    • 이케다토모야호소카와노부히토요코야마요시카즈
    • B25F5/00
    • H02K1/185H02K5/08H02K5/148H02K15/12
    • PURPOSE: An electric tool and an insulating method thereof are provided to secure thermal resistance and physical durability of an outer casing by mounting an insulating unit extended from a rotor supporting part to the inside of the outer casing, to have excellent safety against a leakage of electricity, and to compact the external form of the outer casing. CONSTITUTION: An electric tool is composed of a motor(2) including a stator(2a) and a rotor(2b) mounted in an outer casing(1); a bearing(3) rotatively supporting the rotor of the motor; a rotor supporting part(1a) formed in the outer casing to support the bearing; and an insulating part(11) arranged from the rotor supporting part along the inner surface of the outer casing. The insulating part is an insulating layer formed by injection-molding insulating resin material.
    • 目的:提供一种电动工具及其绝缘方法,通过将从转子支撑部延伸的绝缘单元安装到外壳的内部来确保外壳的热阻和物理耐久性,以具有优异的安全性,防止泄漏 电,并且压缩外壳的外部形式。 构成:电动工具由安装在外壳(1)中的定子(2a)和转子(2b)的电机(2)构成。 轴承(3)可旋转地支撑电动机的转子; 形成在所述外壳中以支撑所述轴承的转子支撑部分(1a) 以及沿着外壳的内表面从转子支撑部分布置的绝缘部分(11)。 绝缘部是通过注塑成型绝缘树脂材料形成的绝缘层。