JPS59226277A - Distributor for restraining noise electromagnetic wave of internal-combustion engine - Google Patents

Abstract

PURPOSE:To reduce an electric discharge starting voltage and obtain the effect of restraining noise electro-magnetic wave by a method wherein the material of electrode, coated previously with the layers of varnish, whose principal constituent is silicon, is punched to the shape of electrode for the distributor and the punched electrode is fixed to the distributor. CONSTITUTION:A sheet member, which is the material of electrode for the distributor, is coated previously with the layers of varnish consisting principally of silicon and the sheet member is punched to the shape of electrode for the distributor, whereby the electrode 2 of a desired shape as well as the layers of varnish consisting principally of silicon on the surface of the electrode 2 are obtained. The electrode 2, having varnish layers 4, is fixed to the distributor 1. According to this method, the varnish layer 4, consisting principally of silicon, increases electrons, emitted from the electrode 2 in case of electric discharge between the electrode 2 and a terminal electrode at the side thereof, thereby reducing the electric discharge beginning voltage and restraining the noise electromagnetic waves generated in accompanied with the electric discharge.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for suppressing noise radio waves generated from an ignition device of an internal combustion engine, and in particular to a device for suppressing noise radio waves generated from a power distribution device of an ignition device and a side terminal electrode. This relates to a noise radio wave suppression power distribution device that suppresses radio waves.

The electrical distribution structure of a conventional power distributor of this type is shown in FIG. In FIG. 1, a distribution electrode Q) is fixed to the distribution electrode (1) of the distribution device, and silicon is applied to the discharge end of the distribution electrode Q) opposite to the side terminal electrode (not shown). It is coated with Fes C3), which is the main component.

That is, in this conventional configuration, the discharge starting voltage at the discharge end of the distribution electrode Q) is lowered by the interposition of the silicon-based face (2) applied to the discharge end, thereby reducing the noise. This is intended to suppress the generation of radio waves, but in other words, in this configuration,
Due to the presence of a dielectric material mainly composed of silicon on the entire surface of the discharge end, many intermittent discharges occur due to the charge accumulated in this dielectric material during fat conduction discharge, resulting in insufficient There was a disadvantage that the effect of suppressing radio noise could not be obtained.

In view of the drawbacks of the prior art, this invention reduces the amount of dielectric material at the discharge end of the distribution electrode to reduce intermittent discharge, thereby obtaining a sufficient rudder noise and radio wave suppression effect, and It also provides a noise radio wave suppression structure suitable for mass production.

Hereinafter, one embodiment of the power distribution structure according to the present invention will be described in detail with reference to FIG.

The embodiment in FIG. 2 is a sectional view corresponding to the conventional example in FIG. 1. In each of these figures, the same reference numerals indicate the same or Buddhist parts. In this example, a layer of varnish containing silicon as the main component was applied and fixed in advance to the plate material that will be the material for the distribution electrode. By punching this plate material into the shape of the electron distribution electrode, a desired shape of the electron distribution electrode (2) is obtained, and at the same time, a varnish layer (4) mainly composed of silicon is obtained on the surface of the electron distribution electrode (2). , the electron distribution electrode Q) having this varnish layer (4) is fixedly attached to the electron distribution electrode (1) in the same manner as in the prior art.

Therefore, in the electron distribution according to the configuration of this embodiment, the varnish layer (4) containing silicon as a main component formed on the surface of the electron distribution electrode (2) prevents the electron distribution electrode (2) from discharging between the side terminal electrodes. 2) increases the number of electrons emitted from the varnish layer (4), which reduces the discharge starting voltage and suppresses the noise radio waves generated due to the discharge;
Since the dielectric material, which is mainly composed of silicon, is not larger than necessary, the amount of charge accumulated in this part is small.
Intermittent discharge that occurs during rust conduction discharge is also sufficiently suppressed, and noise radio waves accompanying this intermittent discharge can also be suppressed.

In the above embodiment, a case was described in which only a varnish layer containing silicon as a main component was applied and fixed on the plate material serving as the distribution electrode material, but in order to prevent deterioration of the varnish layer due to discharge, It is also effective to further provide a protective resin layer on the varnish layer.

As detailed above, according to the present invention, as a noise radio wave suppressing structure for a power distribution device, a layered varnish containing silicon as a main component is applied and fixed in advance to a plate material serving as a material for a power distribution electrode. By punching this into the shape of a distribution electrode to obtain a distribution electrode with a varnish layer, it is possible to reduce the discharge starting voltage in the discharge gap and obtain an effective noise radio wave suppressing effect. Unlike the case where a varnish layer is applied to the distribution electrode, the thickness of the varnish layer itself can be effectively controlled, and it is suitable for mass production and can be manufactured at low cost. It has certain characteristics.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of a power distribution device equipped with a noise radio wave suppression structure according to a conventional example, and FIG. 2 is a longitudinal sectional side view of a power distribution device equipped with a noise radio wave suppression structure according to an embodiment of the present invention. (1)・Fist・・Electronic distribution electrode, (2)・・・Electric distribution electrode, (
4) Varnish layer whose main component is silicon. Agent Masuo Oiwa Figure 1

Claims (1)

[Claims] In a distribution configuration in which a distribution electrode is arranged opposite to a side terminal electrode through a discharge gap, and a face containing silicon as the main component is applied to the discharge end of the distribution electrode, silicon is the main component. Using an electrode material on which a layer of FE, which is a component, is applied in advance, this electrode material is punched into the shape of a distribution electrode to form a distribution electrode with a FE layer.
A power distribution device for suppressing noise radio waves of an internal combustion engine, characterized in that this is fixed to a power distribution device.