JPH09320791A - Static electricity eliminating method of movable body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a static electricity eliminating method, capable of easily remove electricity charged with a movable body even where grounding cannot be provided by means of an earth wire or the like and capable of eliminating electricity, even when its movement direction is random. SOLUTION: A portable discharging device ID is used, a potential reference part 13 common to primary and secondary side circuits with respect to its step-up transformer 6 is connected to a movable body M, whereby generation of ions of the charge polarity and reverse polarity of the movable body is restricted from a discharge electrode 12, and the ion of the same polarity is discharged in air from a discharge electrode 11, whereby an aerial electric path reaching the ground from the movable body through the discharge device is formed, and the static electricity of the movable body is leaked to the ground.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static elimination method for neutralizing a charged moving body (including a human body).

[0002]

2. Description of the Related Art Conventionally, when an object or a human body (hereinafter referred to as a moving body) that moves in a charged state is electrically insulated from the ground, it is sometimes difficult to directly ground the moving object. In many cases, the static elimination method includes a static eliminator 50 that simultaneously generates positive and negative ions as shown in FIG.
The static eliminator 50 is opposed to the moving body 51 in a state where the static eliminator 50 is grounded by an earth wire or the like, and the movable body 51 is irradiated with plus / minus ions generated at the discharge electrode of the static eliminator 50, In general, the static electricity is neutralized by ions having a polarity opposite to the charge polarity.

[0003]

However, in this method, since the positive and negative ions are directly irradiated to the moving body regardless of the charging polarity of the moving body, there is a disadvantage that the moving body is charged again to the opposite polarity. there were. Also, since the static eliminator must be grounded, it cannot be applied where the ground cannot be taken.If the moving distance of the moving body is long or the moving direction is random, make the static eliminator follow the moving body. However, it is technically difficult to move the static eliminator together with the moving body while maintaining the static eliminator in a grounded state with a ground wire or the like.

SUMMARY OF THE INVENTION An object of the present invention is to provide a simple and effective method for removing static electricity from a charged moving body even when grounding by a ground wire or the like is not possible, and even when the moving distance of the moving body is long or its moving direction is random. An object of the present invention is to provide a static elimination method capable of eliminating static electricity without any problem.

[0005]

According to the present invention, a discharge electrode is connected to a secondary side of a step-up transformer, and a boosted high voltage is applied to the discharge electrode to generate positive and negative ions. By using a portable discharger and connecting a potential reference part common to the primary circuit and secondary circuit to the booster transformer to the moving body, the generation of ions having the opposite polarity to the charged polarity of the moving body is discharged. By suppressing ions from the electrode and discharging ions of the same polarity from the discharge electrode into the air, an aerial electric path from the moving body to the ground through the discharger is formed, and the static electricity of the moving body is leaked to the ground.

[0006] The discharger is supported by a moving body, and ions can be emitted by discharging from the discharge electrode while moving with the moving body.

In the case of using a discharger which generates plus / minus ions from plus / minus discharge electrodes to which a DC discharge, ie, plus / minus DC high voltage is applied, a primary circuit for the step-up transformer and Since the potential reference section common to the secondary circuit is connected to the moving body, discharge from the discharge electrode having the opposite polarity to the charging polarity of the moving body is suppressed, and the discharge mainly having the same polarity as the charging polarity of the moving body is suppressed. Since there is a tendency to discharge from the electrodes, static electricity of the moving object is eliminated by an aerial circuit of ions of the same polarity.

In the case of using an AC discharge, that is, a discharger that alternately generates positive and negative ions by discharging between a discharge electrode to which an AC high voltage is applied and an earth electrode, the same polarity as the moving body is used. Discharge tends to be larger than the discharge of the opposite polarity, so that the static electricity of the moving body is eliminated by the aerial electric circuit by the ions of the same polarity.

In order to drive the discharger by a battery or the like, a high frequency voltage of an intermittent oscillation circuit which intermittently oscillates with a low DC voltage is applied to the primary side of a step-up transformer to boost the voltage. In this case, the voltage on the secondary side of the step-up transformer is rectified and amplified by positive and negative
By applying to the respective negative discharge electrodes, the static elimination conditions can be made equal to plus and minus.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

First, a discharger used in this embodiment will be described. A discharger 1D shown in FIG. 1 is a DC type, and includes a battery 2 which is a low-voltage DC power supply, a diode 3 for rectifying the current, a capacitor 4 for stabilizing the voltage, and a high-frequency intermittent oscillation circuit 5 , A high frequency step-up transformer 6, a positive side voltage doubler rectifier circuit 7 and a negative side voltage doubler rectifier circuit 8.

When the power switch 9 is turned on, a DC voltage is applied to the high-frequency intermittent oscillation circuit 5 to turn on the starting transistor 10, and the high-frequency intermittent oscillation circuit 5 intermittently oscillates at a high frequency by self-excited oscillation. That is, in the high-frequency intermittent oscillation circuit 5, the value of the resistor R1 is increased in order to reduce the base current of the transistor 10 and perform intermittent oscillation, and when a certain amount of electric charge is charged in the capacitor C1, the oscillator oscillates. Oscillation stops when the charge is discharged.
By repeating this, intermittent oscillation occurs, and a high AC voltage is intermittently obtained on the secondary side of the high-frequency step-up transformer 6.

On the secondary side of the high frequency step-up transformer 6, a plus side voltage doubler rectifier circuit 7 and a minus side voltage doubler rectifier circuit 8 are connected in parallel. These voltage doubler rectifier circuits 7 and 8
By connecting the diode D and the capacitor C so as to be stacked in series, respectively,
A high voltage DC voltage that is a multiple of the transformer secondary voltage is obtained.
In order to make the positive and negative static elimination conditions the same, the positive side voltage doubler rectifier 7 is more than the negative side voltage doubler rectifier 8.
Are increased in the number of amplification stages. In the example of the figure, the positive side voltage doubler rectifier circuit 5 has five stages, and the negative side voltage doubler rectifier circuit 8 has four stages.
It is tiered. The output terminals of the positive and negative voltage doubler rectifier circuits 7 and 8 are respectively resistance-coupled to the positive and negative needle-like discharge electrodes 11 and 12, respectively.・ 12
It is connected to the.

Further, the negative tap on the primary side and the negative tap on the secondary side of the high-frequency step-up transformer 6 are connected to form a common potential reference portion 13 on the primary side and the secondary side. The potential reference portion 13 is a reference for a common potential between the primary side circuit and the secondary side circuit with respect to the high frequency step-up transformer 6, and the potential reference portion 13 is used as a reference inside the circuit of the discharger 1D. And the polarity and magnitude of the potential are determined. The common terminal 14 is provided on the potential reference portion 13.

Therefore, when the power switch 9 is turned on,
When a positive voltage based on the potential reference portion 13 is applied to the positive side voltage doubler rectifier circuit 7, the positive side discharge electrode 11 is discharged, and the negative side voltage doubler rectifier circuit 8 is based on the potential reference portion 13. When a negative voltage is applied, discharge is performed from the discharge electrode 12 on the negative side.

The discharger 1D is electrically configured as described above, and its circuit, including the battery 2, is housed in a case that can be held and carried by one hand.
The positive and negative discharge electrodes 11 and 12 face each other at a predetermined interval, and a common terminal 14 is provided to electrically connect the potential reference portion 13 to a moving object to be neutralized.
The connection wire (electric wire) 15 connected to is drawn out.

In this embodiment, a moving body is neutralized by using such a discharger 1D. For example, as shown in the schematic diagram of FIG. 2, an insulator IN (wheel) electrically connects to the ground E. When the insulated movable body (vehicle) M is to be neutralized, the potential reference portion 13 of the discharger 1D is connected to the movable body M via the connection line 14, and the discharger 1D is mounted on the movable body M and is connected together. Then, the plus side discharge electrode 11 or the minus side discharge electrode 12 is discharged, and ions due to the discharge are emitted into the air without irradiating the moving body M. The release is preferably directed to the ground E as much as possible.

In the electric discharger 1D, the potential reference portion 13 is connected to the moving body M, and thus has the same potential as the moving body M. Therefore, when the moving body M is positively charged,
The potential of the minus side discharge electrode 12 of the discharger 1D has a smaller potential difference with the ground, and the potential of the plus side discharge electrode 11 has a larger potential difference with the ground, so that the discharge is performed only from the plus side discharge electrode 11 toward the ground. . As a result, when the positive ions from the plus side discharge electrode 11 reach the ground E, a positive aerial circuit from the moving body M to the ground E through the discharger 1D is formed, and the positive static electricity of the moving body M is discharged to the ground E.
And the charge is removed.

On the other hand, when the movable body M is negatively charged, the potential of the plus side discharge electrode 11 of the discharger 1D becomes smaller than the potential difference with the ground, and the potential of the minus side discharge electrode 12 becomes the potential difference with the ground. Is increased, and the discharge is caused from only the minus side discharge electrode 12 toward the ground. As a result,
The negative ions from the negative side discharge electrode 12 are ground E
, A negative aerial electrical path from the moving body M to the ground E through the discharger 1D is formed, and the negative static electricity of the moving body M leaks to the ground E and is discharged.

Generally, when the same positive and negative voltages are applied to the discharge electrodes, more negative ions are generated than positive ions, but the positive and negative voltage doubler rectifier circuits 7 and 8 have As described above, since the number of stages on the plus side is larger than that on the minus side, static electricity can be removed equally to plus or minus.

FIG. 3 shows an AC discharger 1A.
The discharger 1A connects the positive and negative taps on the secondary side of the high-frequency step-up transformer 6 to a positive and negative common discharge electrode 16, and the discharge electrode 16 and the ground electrode 17 are connected.
Are arranged at predetermined intervals on the outside of the case so that a discharge is generated alternately between positive and negative between these electrodes. The circuit on the primary side of the high-frequency step-up transformer 6 is the same as that in FIG.

When the AC type discharger 1A is used, when the moving body M is positively charged, the discharge between the discharge electrode 16 and the ground electrode 17 is more positive than negative. growing. Therefore, the discharge electrode 16
From the mobile unit M, a positive aerial electric path from the mobile unit M to the ground E through the discharger 1A is formed, and the positive static electricity of the mobile unit M leaks to the ground E and is discharged.

On the other hand, when the moving body M is negatively charged, the discharge between the discharge electrode 16 and the ground electrode 17 becomes larger in the negative direction than in the positive direction. Therefore, negative ions are mainly emitted from the discharge electrode 16, a negative aerial electric circuit is formed from the moving body M to the ground E through the discharger 1A, and the negative static electricity of the moving body M leaks to the ground E. Static electricity is removed.

Regardless of whether the DC type discharger 1D shown in FIG. 1 or the AC type discharger 1A shown in FIG. 3 is used, it is mounted on the moving body M (or carried when the moving body M is a human body). In addition, while moving with the moving body M, even if the charging polarity of the moving body M is plus or minus, the charge can be efficiently removed.

[0025]

As described above, according to the static elimination method of the present invention, discharge is performed in a state where the potential reference portion of the discharger is connected to the moving body, thereby generating ions having a polarity opposite to the charged polarity of the moving body. The discharge electrode discharges ions of the same polarity from the discharge electrode into the air, thereby forming an aerial electrical path from the moving body to the ground through the discharger and causing the static electricity of the moving body to leak to the ground. Even in a place where grounding by a wire or the like cannot be taken, static electricity can be easily removed from the charged moving body, and even if the moving distance of the moving body is long or the moving direction is random, the static electricity can be removed without any trouble.

[Brief description of drawings]

FIG. 1 is a circuit diagram of an example of a DC discharger used in a static elimination method of the present invention.

FIG. 2 is a schematic diagram illustrating an example of a static elimination method of the present invention.

FIG. 3 is a circuit diagram of an example of an AC type discharger used in the static elimination method of the present invention.

FIG. 4 is a schematic view showing a conventional static elimination method.

[Explanation of symbols]

 1D DC type discharger 1A AC type discharger 5 High frequency intermittent oscillation circuit 6 High frequency step-up transformer 7 Positive side voltage doubler rectifier circuit 8 Negative side voltage doubler rectifier circuit 11 Positive side discharge electrode 12 Negative side discharge electrode 13 Potential reference part 16 Discharge electrode 17 Earth electrode

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kojiro Nishimura 2-3-3 Nakaso, 2-3-23 Nakamachi, Hoya-shi, Tokyo (72) Inventor Teruo Suzuki 6-1-7-905 Oshima, Koto-ku, Tokyo

Claims (6)

[Claims] 1. A discharger connected to the secondary side of a step-up transformer, and using a portable discharger capable of generating a plus / minus ion by applying a boosted high voltage to the discharge electrode. By connecting the potential reference part common to the primary side circuit and the secondary side circuit to the moving body to the transformer, the generation of ions of the opposite polarity to the charged polarity of the moving body is suppressed from the discharge electrode, and the ions of the same polarity are discharged. A method for discharging static electricity from a moving object, comprising forming an aerial electric path from the moving object to the ground through a discharger by discharging the static electricity from the moving object to the ground by discharging the electrode into the air. 2. The static elimination method according to claim 1, wherein the discharger is supported by a moving body, and ions are discharged by discharging from the discharge electrode while moving with the moving body. 3. The method of claim 1, wherein the positive and negative discharge electrodes to which a high DC voltage is applied respectively suppress the discharge of a discharge electrode having a polarity opposite to the charging polarity of the moving body.
The discharging method for a moving body according to claim 1, wherein discharge electrodes having the same polarity are mainly discharged. 4. A discharge between a discharge electrode to which an AC high voltage is applied and an earth electrode to generate a large number of positive and negative ions having the same polarity as the moving body. 2. The method for removing electricity from a moving object according to claim 1. 5. The method according to claim 1, wherein a high-frequency voltage of an intermittent oscillation circuit that intermittently oscillates with a low DC voltage is applied to the primary side of a step-up transformer to boost the voltage. 6. A high frequency voltage of an intermittent oscillation circuit which intermittently oscillates by a low DC voltage is added to the primary side of a step-up transformer to boost the voltage, and the secondary side voltage is rectified by positive and negative voltage doubler rectifier circuits. 4. Amplification and application to positive and negative discharge electrodes.
The method for static elimination of a moving object according to the above.