| 摘要 |
PURPOSE:To use a one discharge wire for the connector, make position alignment easy and achieve prevention of connection defects by connecting an impedance element between grid wires and a conductive shield plate and integrating this to the discharger. CONSTITUTION:A casing 3 which is formed in U-form by a back plate 1 and a side plate 2 to become a conductive shield plate is provided. Insulating brackets 4, 5 are provided near both ends thereof and a plurality of grid wires 6 are spanned between the brackets by means of springs 7. A constant voltage element 11 being an impedance element is provided to one end of the casing 3 and this element 11 is connected at one end to one end of the grid wires 6 and at the other to the side plate 2. On the other hand, a connector 12 which is connected with one end of a corona-discharge wire 8 is protrusive by provided to the other end of the casing 3. As a result, the connector may be made only one wire for corona discharge, whereby position alignment is made easy and connection defects prevented.
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