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Static electricity eliminator

A technology of static eliminator and circuit, applied in the direction of static electricity, electrical components, tents/canopies, etc., can solve problems such as difficulty in changing frequency and duty cycle

Inactive Publication Date: 2012-07-25
KEYENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this system, the frequency of supplying positive and negative high voltages to the discharge electrodes is determined by the frequency of the AC power source, posing a problem that it is difficult to change the frequency and duty ratio of the positive and negative high voltages to be applied to the discharge electrodes

Method used

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  • Static electricity eliminator
  • Static electricity eliminator
  • Static electricity eliminator

Examples

Experimental program
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Embodiment approach

[0078] Implementation method ( Figure 5 and 6 ) :

[0079] Figure 5 The pulse AC type static eliminator of the first embodiment of the present invention is shown. refer to Figure 5 , the static eliminator 300 has a high-voltage power supply circuit 302, and the high voltages of positive and negative polarities generated in the high-voltage power supply circuit 302 are alternately applied to the shared discharge electrode 304, thereby alternately generating positive ions and negative ions.

[0080] The high-voltage power supply circuit 302 has a high-voltage generating circuit 306 of positive polarity and a high-voltage generating circuit 308 of negative polarity, and the two high-voltage generating circuits 306 and 308 respectively include primary step-up circuits 310 and 312 composed of winding transformers and cokero Cockcroft-Walton (Cockcroft-Walton) circuit (voltage doubler rectification circuit) constitutes the secondary step-up rectification circuits 314 and ...

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PUM

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Abstract

The invention provides a pulse AC static electricity eliminator, wherein generally a primary booster circuit formed by a transformer does not need better insulating property. In a static electricity eliminator, an output line of a positive polarity high pressure generating circuit is in connection with a negative polarity high pressure generating circuit to alternately apply positive and negative polarity high pressure to shared discharge electrodes. A grounding terminal of a second winding of a negative polarity transformer is grounding and the grounding terminal is not in connection with a negative polarity secondary boosting rectifier circuit.

Description

technical field [0001] The invention relates to a static eliminator which emits positive and negative ions alternately from a shared discharge electrode to decharge a charged body (workpiece). Background technique [0002] Static eliminators have been used to fill the surroundings of workpieces with an ion atmosphere in order to neutralize charged workpieces. Static eliminators can be divided into AC type and DC type. The AC type applies positive and negative high voltages alternately to the shared discharge electrodes, and the DC type applies positive high voltages to one of the two discharge electrodes and to the other discharge electrode. Apply a high voltage of negative polarity. It is generally believed that when the distance between the discharge electrode and the charged body is relatively large, the ions generated in the discharge electrode need time to reach the charged body, and therefore DC type static eliminators that generate ions of the same polarity in each d...

Claims

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Application Information

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IPC IPC(8): H05F3/04
CPCE04H15/34E04H15/60
Inventor 藤田司
Owner KEYENCE
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