JP6456419B2 - Static elimination device - Google Patents

Description

  The present invention relates to the field of a charge removal device for removing charged static electricity.

In automobiles, the reciprocating motion of pistons operating at high speed on the cylinder wall of the engine, rotation of various gears inside the transmission case, air intake, tire rotation, brake friction, body air resistance, oil, exhaust gas, and cooling water Static electricity is always generated everywhere, such as the flow of water. When static electricity is charged on a car, an electric shock is caused by discharge when people get on and off, static electricity becomes noise, current does not flow normally, various sensors cannot be measured accurately, and malfunction occurs. There is a problem that the original performance of the engine, auxiliary equipment, electronic parts, etc. cannot be exhibited.

Therefore, a technique for removing static electricity from a vehicle by introducing a plurality of ground wires from a negative terminal of a vehicle battery to a ground point such as a body or an engine is widely known as earthing.
Further, in Patent Document 1, as a device for removing static electricity charged on a vehicle body, tourmaline ceramic bodies are arranged in a dense state in a case made of a conductive material, and magnets are disposed at opposite side positions of the tourmaline ceramic body. The N pole is arranged at an interval so as to face the tourmaline ceramic body, charged silicon is filled in the case, the tourmaline ceramic body and the magnet are fixed in place, and a lead wire is attached to the magnet side end of the case. A technique is disclosed in which static electricity is removed by wiring each, housing it in the case, exposing the lead, connecting the lead to the negative terminal of the battery, and connecting the other end to the body.

JP 2009-181694 A JP-A-4-21499 JP 2003-246888 A

In Patent Document 1 described above, a ground wire is indispensable for returning static electricity to the battery. Also, since it was necessary to connect a ground wire to the negative terminal of the battery, it could only be installed around the battery.
Furthermore, since “wires” are used, it was impossible to attach to rotating parts such as a propeller shaft and a drive shaft. In addition, it is necessary to change the length of the wiring for each vehicle type, and there is a problem that it cannot be said that it is a complete general-purpose product.

Patent Document 1 does not describe the flow of static electricity charged in the body of the car and the influence of static electricity during the process.
Therefore, there is a demand for an electrification removing device that does not have a wire rod and can be easily attached anywhere, for any vehicle type.

An object of the present invention is to provide a charge removal device that removes charged static electricity that can be easily attached to a user's desired site without requiring any special work, is highly versatile, and inexpensive. To do.

In order to achieve the above-described object, a charge removing device according to the present invention has the following configuration.

The static eliminator according to the present invention is directly joined to a fastener for fixing an electrostatically charged device, and has a discharge protrusion for discharging the static electricity through the fastener. The discharge protrusions are arranged in the air direction .

The present invention can be easily installed without using a “wire” such as a ground wire. Further, since it is fastened, there is no fear of dropping off, and it can be directly installed on a part that itself rotates.
Furthermore, there are few components and it is very cheap. In addition, it can be installed on top of existing fasteners, and can be easily installed anywhere.

For example, by directly installing in an engine or drive system that generates a large amount of static electricity, the static electricity can be removed directly, and the original performance of the engine, auxiliary equipment, drive system, and electrical components can be exhibited.

As shown in FIGS. 1 to 6, the present invention is obtained by joining a discharger having a plurality of protrusions, a screw (including a bolt), a nut, or a washer as a fastener.

The shape of the discharger is preferably one having at least one protrusion. It is preferable that there are many protrusions, and the tip should be sharp.
This is because the electrification removing device removes charged static electricity by corona discharge.

The corona discharge is a discharge having weak light emission generated only in the vicinity of the tip when a grounded conductor with a sharp tip is present near a charged object.

Examples of the fastener include bolts and nuts, washers (washers) used in association therewith. By using standard products (ISO meters, wits, JIS, unified) for these fasteners, general standard products can also be used for the fastening tools.

The screw includes a bolt. Depending on the shape of the head, there are various types and sizes such as hexagons, pans, slabs, hex lobes, squares, etc., but if they can be rotated and fastened and fixed, the types and sizes Does not matter. For example, a tapping screw is included.

There are various shapes and sizes of nuts, such as hexagon nuts, cap nuts, lock nuts, flange nuts, etc., but if they can be turned and fastened and fixed, the shape and size will be It doesn't matter. A plurality may be used in a stacked manner.

There are various types, shapes, and sizes of washers, but there is no particular limitation. A plurality of sheets may be used in an overlapping manner.

The discharger and the nuts, bolts, and washers to be joined to the discharger need only be conductive.
Conductive materials such as metals, conductive resins, conductive rubbers, conductive ceramics, and metal plated resins can be used. Specific examples include silver, copper, gold, aluminum, iron, stainless steel, lead, zinc, and titanium. It is preferably made of metal, but may be conductive resin such as carbon.

The materials of the nut and bolt to which the discharger and the discharger are joined may be different materials or the same material.

The discharger may be bonded not only to the upper surface of the screw head but also to the lower surface or side surface of the head. One or more may be joined to all of the upper surface, the lower surface, and the side surface of the screw head, or one or more may be joined to each surface or a combination of surfaces. The same applies to the nut. For nuts,
A structure in which a plurality of nuts are stacked and a discharger is bonded may be used, or a structure in which a plurality of nuts are bonded to a discharger may be stacked.
That is, it is only necessary that the discharger is joined to any place of a fastener such as a nut, a bolt, or a washer.

Examples of the method for joining the discharger to the upper surface or the side surface of the fastener include welding and adhesion. The welding may be arc welding or spot welding.
For the adhesion, a conductive adhesive may be used. As long as the electrical conductivity to the discharger is ensured, the joining method is not particularly limited.
The joining method to the lower surface can be either welding or adhesion, but for example, it may be fixed by fastening a screw from above the discharger. The joining method is not particularly limited as long as the conductivity to the discharger is ensured.

Here, the characteristics of static electricity transfer will be described. The static electricity moves from a place where there are relatively many electrons (a place where the electron density is high) to a place where there are relatively few electrons (a place where the electron density is low). That is,
It has the characteristic of moving toward a place with a potential difference.

In an automobile, since the tread surface of the tire is in contact with the ground surface, it is the place with the lowest electron density in the entire automobile.
The tire is a conductive rubber because carbon black, which is a conductive resin, is kneaded. (Patent Document 3)

  The outline of the flow of static electricity in an automobile is as follows.

A large amount of static electricity is generated around the engine due to the movement of the piston driven at high speed inside the cylinder of the engine. The static electricity moves toward the tire to dissipate to the ground through the tire tread as described above.
Most static electricity travels to the body through engine mounts, ground wires, missions, and so on. From the body through the suspension, it moves to various arms, from the arms to the wheel hub, from the hub to the wheel, from the wheel to the tire, and finally to the ground surface through the tread surface of the tire.
Note that the flow of static electricity is the same in a motorcycle.

Static electricity adversely affects these various paths. However, there is no place where static electricity is discharged in the process up to the tire.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a charge removing device according to the present invention will be described in detail with reference to the drawings.

In this embodiment, two bolts that fasten an oil pan at the bottom of the engine are removed and replaced with a charge removal device 10.

As shown in FIG. 1, the electrification removing device 10 is obtained by welding a discharger having 12 protrusions to an M10 bolt.

As described above, the engine is a place where various parts slide and rotate to generate a large amount of static electricity.

A large amount of charged static electricity causes noise in the engine and sensors near the mission, impeding correct control.

Further, the static electricity moves to the tire and has no discharge place. Therefore, the two bolts holding the oil pan at the bottom of the engine were removed, and the antistatic device 10 was installed to discharge static electricity.

[Test Example 1]
The model used is 1994 Honda Today Pochette JA4 5MT running 14
The one with 2156 kg was used.
After the vehicle has been warmed in advance at idle at 950 rpm for 45 minutes, the vehicle is lifted with a hydraulic jack and the oil pan voltage at the bottom of the engine is measured using FMX-002 made by Simco Japan did. The measuring point is the center of the oil pan and the measuring distance is 1
cm.

The voltage before installation of the charge removing device 10 was 0.03 kv. In addition, the voltage after 1 hour from the installation of the present application was 0.01 kv. Furthermore, the voltage after 2 hours was 0.00 kv.

In this way, when the charge removing device 10 is attached, the voltage of the oil pan decreases with the lapse of time, so that it can be understood that the charge removing device 10 removes the static electricity charged in the oil pan.
In addition, when running, the engine itself started to rotate smoothly, probably because the noise caused by static electricity was eliminated.

In this embodiment, the static electricity generated is removed by continuously contracting a single-cylinder shock absorber (high-pressure gas-filled type), which is a rear suspension of a motorcycle, using the charge removing device 20.

As shown in FIG. 4, the electrification removing device 20 is obtained by welding a discharger having 12 protrusions to an M12 nut.
The shock absorber is fixed with the piston rod side as the upper surface and the outer cylinder as the lower surface, and the mounting portion of the vehicle body and the suspension is fixed to the upper surface of the piston rod, and two M12 bolts are welded to the side surface of the mounting portion. The piston rod was shrunk continuously 15 times using a hydraulic press.

For measurement, FMX-002 manufactured by Simco Japan Co., Ltd. was used. The measurement point is 2 cm above the upper part of the outer cylinder and the center point of the piston rod. The measurement distance was 1 cm. The hydraulic press machine was Amada's hydraulic press machine SPH-60, and the piston rod was contracted 15 times at a constant speed. The result is the average value.

The measurement was carried out in the company headquarters of NGC Japan under the conditions of a temperature of 19 degrees and a humidity of 20%.

The results are shown below.
The average value of the first time before installation of the charge removing device is 0.2 kv, the average value of the second time is 0.6 kv, 3
The average value of the second time was 0.4 kv.

On the other hand, the average value for the first time after installation of the charge removing device is 0.1 kv, and the average value for the second time is 0.4 k.
v The average value for the third time was 0.2 kv.

From the above results, the numerical value of the one where the charge removing device 20 is installed is low. Therefore, it seems that the charge removing device 20 is removing the charge.

In this embodiment, a charge removing device 30 is installed on a front fork of a motorcycle.

In this embodiment, a bolt for fixing a front fork bottom case and a front fender, which has been conventionally installed, is removed, and an electrification removing device 30 having one discharger having 12 protrusions on the upper surface of the bolt is installed. did.

By doing in this way, before the static electricity which generate | occur | produced with the engine etc. moves to a tire from a body, it is made to discharge by the electrification removal apparatus 30. FIG. In this way, static electricity is prevented from moving to the bottom of the bottom case related to the damping pressure.

Oil is sealed inside the front fork. Various fine particles are added to the oil. For example, an antifoaming agent, an antioxidant and the like are blended, that is, conductive oil is enclosed.

Here, the conductive oil refers to an electrorheological fluid. (Patent Document 2) The electrorheological fluid is a suspension in which fine particles are dispersed in an insulating solvent (oil), and is characterized in that the oil viscosity increases when an external electric field is applied.

Thus, the static electricity flowing from the body is considered to increase the oil viscosity inside the front fork.

Therefore, if the charge removal device 30 is installed in the front fork that is a passage through which static electricity passes in the process of flowing from the body to the tire, the static electricity is discharged before it moves to the bottom of the bottom case for adjusting the damping pressure.
As a result, the oil viscosity in the bottom case does not increase, so that the suspension can move well, and there is an effect of providing a high-quality riding comfort.

[Test Example 3]
Since it is difficult to accurately measure the static electricity flowing through the front fork while the motorcycle is actually moving, the amount of movement of the right front fork was measured using a nylon 20cm cable tie.

Use car model is HONDA CB400SF HYPER VTEC SPEC1 type NC39, 2000 type running 24454 km Front tire is made in 2011 Dunlop SPORTMAX GPR-200F (120 / 70ZR17) Air pressure is cold 2
50kpa, rear tire made in 2011 Michelin PILOT POWER PURE
2CT (160 / 60ZR17) air pressure was 290kpa when cold, exhaust pipe of Honda Motorcycle Japan Limited Edition Exhaust System (Akrapovic) was made of stainless steel, silencer was made of titanium, others were non-modified vehicles.
In the test, a specific driver was used as an occupant and no luggage was loaded.

As shown in FIG. 1, an electrification removing device 3 in which a discharger having 12 protrusions on a bolt is welded.
0 was used as a bolt for fixing the left and right front fork bottom cases and the front fender.

A nylon binding band was installed at the bottom of the right front fork inner tube, and the distance traveled by the binding band after running was measured. The measurement was performed by measuring the distance from the upper surface of the dust seal to the lower side of the binding band that moved the inner tube.
The data is a temperature of 2 degrees and a humidity of 35%. A straight line 200m in the Okawara Industrial Park, Hanno City, Saitama Prefecture was run at a speed of 40km / h using a genuine meter.

The average movement amount before installation of the charge removing device 30 was 50 mm. On the other hand, the charge removing device 3
The average amount of movement after installation of 0 was 55 mm.

From the above test results, it can be confirmed that the front fork moved better when the antistatic device 30 was installed.

That is, it is considered that the charge removing device 30 can discharge the static electricity charged on the vehicle body without depending on the tire.

The charge removal device of the present application can be installed in various other places. For example, when installed on the upper part of the engine, there are various effects such as reducing vibration, reducing operating noise, stabilizing idling.

In the present application, an automobile has been described as an example, but not only automobiles but also motorcycles, ships and the like are included. If it is a machine with a power device such as an internal combustion engine or a motor, static electricity is generated and charged. For example, it is used not only for vehicles but also for backpack type granule spraying devices used for spraying agricultural chemicals. Can do.

It is a front view which shows the structure of the static elimination apparatus (bolt) of this application. It is a top view which shows the structure of the static elimination apparatus (bolt) of this application. It is a front view which shows the modification of the electrification removal apparatus (bolt) of this application. It is a front view which shows the structure of the static elimination apparatus (nut) of this application. It is AA sectional drawing of the electrification removal apparatus (nut) of this application. It is a top view which shows the structure of the static elimination apparatus (nut) of this application.

1 Discharger 2 Fastener 3 Fastener

Claims (3)

Are directly joined with fasteners for securing the device which has static electricity, the static electricity have a discharge projection for discharge through the fastener, the protrusions toward the air direction for the discharge Installed on the surface. 2. The charge removing device according to claim 1, wherein the fastener is a screw, and at least one discharge protrusion is joined to an upper portion, a lower portion, or a side surface of the screw. The charge removal device according to claim 1, wherein the fastener is a nut, and at least one discharge protrusion is joined to an upper portion, a lower portion, or a side surface of the nut.

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