| 摘要 |
PURPOSE: An insulator for a coil heater is provided to firmly fix a heater coil to the insulator by forming inner and outer guides to the insulator. CONSTITUTION: An insulator for a coil heater comprises a body part(110) made of an insulator material and fixed to a fixing plate; fixing parts formed to the central ends of the body to fix the body part to the fixing plates; coil-seating parts(130) to which windings of a heater coil are seated. The coil-seating part is formed to the longitudinal end of the body part. The coil-seating part includes inner and outer guide grooves(131b,132b,131c,132c) having curvature corresponding to the caliber of the heater coil to support the windings of the heater coil from the upper and lower sides.
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