JP4246533B2 - Earthing system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to Earthing system for use in an automobile engine.
[0002]
[Prior art and problems to be solved by the invention]
In general, the electrical system such as the CPU, ignition system, and light of the automobile is wired separately for each device on the plus side, but the minus side as the return path is simplified for wiring and cost reduction. For this reason, the entire body is regarded as a zero-potential conductor (body earth) and is uniformly wired to this body.
[0003]
However, this body grounding is called grounding where the negative terminal does not become a completely zero potential because the resistance is mainly due to deterioration of the body such as distortion and dirt depending on the part, and the current is blocked by this resistance. Cause a phenomenon.
[0004]
When this floating of the earth occurs, the potential difference between the plus and minus of the battery becomes small (the voltage drops), the current flowing through the circuit is lowered, and the electrical system such as the CPU, ignition system, light, etc. This is not preferable because the original performance cannot be exhibited and the efficiency of the entire automobile is reduced.
[0005]
Therefore, there has been proposed an earthing system for the purpose of eliminating the above-mentioned ground floating and demonstrating the original performance of the equipment by newly leading the ground wire directly from the negative terminal of the car battery to each electrical equipment. Yes.
[0006]
Specifically, this earthing system collects the negative side of each electrical equipment to make a ground block, and uses a conductor such as a very thick copper wire having a very large conductivity for earthing as a ground wire. And the negative terminal of the battery.
[0007]
It has been confirmed that the earthing executed by the earthing system can actually improve the operability of the CPU, improve the efficiency of lights, audio, etc., and improve the fuel efficiency.
[0008]
However, regarding the efficiency improvement of the ignition system, which is expected to improve the startability of the engine and the torque at low and medium speeds, no remarkable effect has yet been confirmed by earthing.
[0009]
In view of the present situation as described above, the present invention has been generated in the conventional ignition system by connecting the ignition system of the engine and the negative terminal of the battery with a ground wire composed of a complex line formed of a plurality of thin wires. since it is possible to eliminate the earth float was, enough to be able to pull out the exhibit has been not the original performance of the ignition system, intended to provide a very practical earthing system that can reliably realize the power up by Earthing is there.
[0010]
[Means for solving the problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0011]
A negative terminal of a battery for supplying a voltage to an electric system of the automobile, an ignition coil for generating a high voltage for igniting the engine of the automobile, and a breaker section for inducing a high voltage in the ignition coil Without using the body earth of the automobile , the cathode part of the ignition plug, the ignition coil, and the vicinity of the distributor of the ignition system comprising a distributor and an ignition plug that performs spark discharge with a high voltage generated by the ignition coil The earthing system is characterized by being connected using a ground wire 1 composed of complex wires 2 and 3 formed by a plurality of thin wires.
[0012]
Also, a negative terminal of a battery for supplying a voltage to the electric system of the automobile, an ignition coil for generating a high voltage for igniting the engine of the automobile, and a full transistor for inducing a high voltage in the ignition coil The cathode part of the ignition plug, the ignition coil and the full transistor type breaker part of an ignition system comprising an electric type breaker part and an ignition plug which performs spark discharge by a high voltage generated by the ignition coil, The present invention relates to an earthing system characterized in that a ground wire 1 composed of complex wires 2 and 3 formed by a plurality of thin wires is used without using a body ground .
[0013]
The grounding wire 1 is a hybrid cable composed of a plurality of complex wires 2 and 3 having different frequency transmission characteristics. The earthing system according to any one of claims 1 and 2, Is.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention (how to carry out the invention) considered to be suitable will be briefly described with reference to the drawings, showing its effects.
[0015]
Earthing is performed by connecting an electrical system such as a CPU, an ignition system, and a light of an automobile to the negative terminal of the battery with a ground wire 1.
[0016]
In general, an ignition system is induced by an ignition coil in which two coils are overlapped, a distributor having a breaker section that cuts off current in order to induce a secondary electromotive force in the ignition coil, and a secondary coil. And a spark plug that performs a spark discharge by a high-voltage secondary electromotive force.
[0017]
Therefore, the current flowing through the ignition system is an induced electromotive force determined by the rate of change of the magnetic flux generated by the current flowing through the primary coil across the secondary coil and the turn ratio between the primary coil and the secondary coil. Depending on the flow.
[0018]
In other words, it is not a direct current in which a constant current always flows, but an alternating current whose magnitude changes with time, and is affected by time, so Ohm's law cannot be applied.
[0019]
In particular, when generating a high voltage that causes spark discharge, it is necessary to increase the rate of change of the magnetic flux when crossing the secondary coil described above. It becomes.
[0020]
Therefore, even if a conventional single-conductor ground wire is used and the wiring is such that the resistance appears to be zero according to Ohm's law, the high-frequency current flows through the ignition system. The resistance of the ground wire does not become zero due to the skin (ferrant) effect that flows biased toward the surface of the conductor, and the ground floating occurs, so that a sufficient earthing effect cannot be obtained.
[0021]
In this case, the present invention connects the ignition system and the negative terminal of the battery with the ground wire 1 composed of the complex wires 2 and 3 formed by a plurality of thin wires, so that the conductivity is not easily lowered due to the skin effect. A high-frequency current can be flowed with high conductivity, and a plurality of complex wires 2 and 3 having different frequency characteristics may be used. In this case, ground floating can be prevented more effectively. Can bring out the original performance of the ignition system that has not been fully demonstrated.
[0022]
Specifically, the ground wire 1 prevents floating of the cathode portion of the spark plug, so that the required voltage (discharge start voltage) for starting the engine is reduced and the discharge time is extended. Therefore, it is possible to obtain a certain spark even under severe conditions for engines such as in winter when the temperature is low, and since the spark after the piston compression top dead center is extended, it can always be operated with high combustion efficiency. The torque at the medium speed will be improved, and the power-up due to earthing, which has been difficult to realize in the past, can be surely realized.
[0023]
Furthermore, since the floating of the ignition coil is prevented, the energy stored in the ignition coil increases, a higher secondary electromotive force can be obtained, and the engine can be started more easily.
[0024]
In addition, by preventing the distributor from floating on the ground, the ignition waveform rises faster and the accelerator response is improved.
[0025]
In particular, for example, in the case of having a full-transistor type breaker instead of a distributor, the acceleration response can be accelerated by grounding the power transistor of the full-transistor type breaker part to further accelerate the ignition waveform. Further improvement.
[0026]
Therefore, according to the present invention, by connecting the engine ignition system and the negative terminal of the battery with a ground wire made of a complex wire formed by a thin wire, it is possible to eliminate the ground floating that has conventionally occurred in the ignition system. from, it is possible to bring out the original performance of had not been fully exhibited ignition system, an extremely practical earthing systems that can feel certainly the power-up by earthing.
[0027]
【Example】
Specific examples of the present invention will be described.
[0028]
In this embodiment, a negative terminal of a battery for supplying a voltage to an automobile electrical system, an ignition coil for generating a high voltage, and a distributor having a full transistor type breaker section for inducing a high voltage in the ignition coil, An ignition system including an ignition plug that performs a spark discharge with a high voltage generated by the ignition coil is connected by a ground wire 1 including complex wires 2 and 3 formed by a plurality of thin wires.
[0029]
Further, in the present embodiment, the existing ground wire previously connected to the engine is removed so that a current flows preferentially to the connected ground wire 1.
[0030]
The outline of the ground wire 1 is as shown in FIG. 1, and a plurality of complex wires having different frequency characteristics, such as a complex line 2 excellent in high-frequency transmission characteristics and a complex line 3 excellent in low-frequency transmission characteristics. It is a hybrid cable consisting of In the figure, reference numeral 4 denotes a sheath.
[0031]
In the present embodiment, the ground wire 1 is used to connect the cathode portion of the spark plug, the vicinity of the ignition coil and the distributor, and the negative terminal of the battery of the automobile.
[0032]
In the present embodiment, it was possible to obtain a very good earthing effect can be configured to connect the ground wire 1 in the near vicinity of the distributor versus the ground wire 1 of the engine head portion Even if connected to the corners (both sides), a sufficient earthing effect can be obtained. The same applies to the case where the full transistor breaker portion is connected to a power transistor that serves to cut off current.
[0033]
When there are a plurality of cathode portions of the spark plug, a better earthing effect can be obtained by connecting the ground wire 1 to each of the cathode portions.
[0034]
In this embodiment, the connection terminal with the battery is provided with a connection portion by a crimping portion, thereby reducing troubles caused by loosening of screws.
[0035]
In addition, in order to prevent the voltage distribution from being abnormally increased due to the capacitor effect due to the generation of capacitance capacitance between the wires by routing a large number of wires, the number of wires branching from the negative terminal of the battery is minimized. It is configured.
[0036]
Specifically, in order to minimize the branching from the minus terminal, the ground wire 1 is formed thick and branched from the minus terminal by a very small number. It is configured to branch.
[0037]
Since the body ground is the same as a single conductor when viewed from the ignition system, the connection to the ignition coil, spark plug, and distributor of the ignition system is configured so that the single conductor section is as short as possible.
[0038]
Since the present embodiment is configured as described above, when the electrical system such as the CPU, ignition system, and light of the automobile and the negative terminal of the battery are connected by the ground wire 1, the ignition system and the negative terminal of the battery are connected. Since the ground wire 1 composed of the complex wires 2 and 3 formed by a thin wire is connected, the high-frequency current flowing through the ignition system of the engine can be passed through the ground wire 1 with high conductivity without resistance. In addition, due to the skin effect, the cross-sectional area of the single conductor cannot be effectively used, and the floating of the ground does not occur, and the original performance of the ignition system that has not been sufficiently exhibited can be brought out.
[0039]
Specifically, the cathode portion of the ignition plug that is the ignition system is a ground electrode, but the more the earth is not lifted, the easier it is to apply a predetermined voltage and the easier it is to discharge between the anode portion. The required voltage will be reduced, the engine startability will be improved, and the ignition time will be extended, so that the discharge state can be maintained for a long time, so the combustion efficiency will be improved and the torque at low and medium speeds will be improved. Therefore, it is possible to surely realize the power-up due to earthing, which was difficult to realize in the past.
[0040]
Further, by earthing the ignition coil, the energy stored in the ignition coil is increased, a higher secondary electromotive force can be obtained, and the engine can be started more easily.
[0041]
Also, by grounding in the vicinity of the distributor, the ignition waveform rises faster and the accelerator response is improved.
[0042]
In addition, since the ground wire 1 branched from the negative terminal of the battery is thickened and thinly branched at the connection destination of the ground wire 1, not only the wiring is simplified, but also the capacitance capacitance between the wires. Since the capacitor effect does not occur, the abnormal increase in voltage can be prevented and it can be used safely.
[0043]
In addition, since the ground wire 1 is not a single conductor but a hybrid cable composed of complex wires 2 and 3 having different frequency characteristics, the skin effect hardly occurs even when a high-frequency current flows, and maintains high conductivity and no resistance. It can flow.
[0044]
Therefore, in this embodiment, the original performance of the ignition system can be brought out by earthing, so that it is practical and epoch-making that can surely realize the power-up by earthing.
[0045]
【The invention's effect】
Since the present invention is configured as described above, the engine floating system and the negative terminal of the battery are connected by a ground wire composed of a complex wire formed by a thin wire, so that the ground floating that has conventionally occurred in the ignition system is connected. Therefore, it is possible to draw out the original performance of the ignition system that has not been fully demonstrated , the rise of the ignition waveform is quickened, the accelerator response can be improved, and the power-up by earthing can be improved. It will be an extremely practical earthing system that you can feel for sure.
[0046]
In the invention according to claim 3, the skin effect of the high-frequency current can be prevented more reliably and becomes more practical.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory diagram of a configuration of a ground wire according to the present embodiment.
[Explanation of symbols]
1 Ground line 2 Complex line 3 Complex line

Claims (3)

A negative terminal of a battery for supplying a voltage to an electric system of the automobile, an ignition coil for generating a high voltage for igniting the engine of the automobile, and a breaker section for inducing a high voltage in the ignition coil Without using the body earth of the automobile , the cathode part of the ignition plug, the ignition coil, and the vicinity of the distributor of the ignition system comprising a distributor and an ignition plug that performs spark discharge with a high voltage generated by the ignition coil An earthing system characterized in that it is connected using a ground wire composed of complex wires formed by a plurality of thin wires. The negative terminal of the battery that supplies the voltage to the electric system of the automobile, the ignition coil for generating a high voltage for igniting the engine of the automobile, and the full transistor type for inducing the high voltage in the ignition coil The cathode part of the ignition plug, the ignition coil and the full-transistor type breaker part of an ignition system comprising a breaker part and an ignition plug that performs spark discharge by a high voltage generated by the ignition coil are connected to the body earth of the automobile. An earthing system which is connected using a ground wire composed of a complex wire formed of a plurality of thin wires without using a wire. The earthing system according to claim 1, wherein the ground wire is a hybrid cable configured by a plurality of complex wires having different frequency transmission characteristics.

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