| 摘要 |
PROBLEM TO BE SOLVED: To provide a high voltage generator incorporated in a spray gun which is made small-sized and lightweight, since the spray gun has to be made small-sized and the operability in use has to be improved under the consideration for the use of higher voltage and the danger therefor in the case of external charging electrostatic coating. SOLUTION: The direct current high voltage generator used for an external charging electrostatic coating gun is provided with an atomizer and a charging electrode which is separated from the path of coating material supplied to the atomizer and is disposed outside the atomizer. Therein, a step-up transformer and a multi-stage voltage doubler rectifier circuit are arranged in piles and a plurality of resistors are bundled in the longitudinal direction and are connected in series to constitute a limiting resistance of 100∼400MΩ. Further, the step-up transformer, the multi-stage voltage doubler rectifier circuit and the resistors are molded into one body by using an insulating resin. COPYRIGHT: (C)2004,JPO
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