WO2005073549A1

WO2005073549A1 - High frequency noise remover and igniter for engine employing it

Info

Publication number: WO2005073549A1
Application number: PCT/JP2004/000764
Authority: WO
Inventors: Kouichi Osugi; Kazuhiro Shibuya; Fujio Nozue
Original assignee: Kouichi Osugi; Kazuhiro Shibuya; Fujio Nozue
Priority date: 2004-01-28
Filing date: 2004-01-28
Publication date: 2005-08-11
Also published as: JPWO2005073549A1

Abstract

A high frequency noise remover (5) comprising a ferrite core (1) and a pair of conductors (2a, 2b) disposed oppositely to the ferrite core characterized in that the pair of conductors (2a, 2b) are insulated electrically from each other and one end of each of the conductors in connected in parallel with an objected from which noise is removed. A cylindrical ferrite core (1) is preferably employed. The conductors (2a, 2b) may be wound in the axial direction while passing along the outer surface of ferrite core (1) and the inner surface of a central hole, or one conductor may be disposed oppositely to the outer surface of the ferrite core (1) and the other may be disposed oppositely to the inner surface of the central hole.

Description

Specification

High frequency noise removing device and engine ignition device using the same

Technical field

The present invention relates to a high-frequency noise removing device for removing high-frequency noise generated when an alternating current is converted to a direct current, and an ignition device for an engine using the same. Background art

Conventionally, as an apparatus for removing high-frequency noise generated when an alternating current is converted to a direct current or when radiated from a signal line of an electronic device, for example,

As shown in Japanese Patent Publication No. 2003-324, the signal line is arranged so as to penetrate into the hole of a cylindrical soft magnetic material (bead core) with high specific resistance such as ferrite. What was done is known.

Recently, there is a need for more efficient and high-performance removal of high-frequency noise. For example, in order to improve combustion efficiency in engines such as automobiles and obtain higher horsepower, etc., high-frequency noise included in the current sent to the battery, ignition coil, and ignition plug from the AC generator through the rectifier circuit, etc. There is a demand for more efficient and efficient removal of.

However, according to the high-frequency noise removing device, it is difficult to remove high-frequency noise with higher efficiency and higher performance.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a high-frequency noise removing device capable of removing high-frequency noise with high efficiency and high performance. Disclosure of the invention

A high frequency noise elimination device according to a first aspect of the present invention includes: a ferrite core; A pair of conductors facing the light core, wherein the pair of conductors are electrically insulated from each other, and the other end of each of the pair of conductors is a noise removal target. It is characterized by being connected in parallel.

According to the high-frequency noise elimination device of the first invention, high-frequency noise generated from the object of noise elimination can be removed with high efficiency and high performance. A high-frequency noise eliminator according to a second invention is characterized in that, in the first invention, the ferrite core is cylindrical.

According to the high-frequency noise elimination device of the second invention, the high-frequency noise elimination device can be easily manufactured, and high-frequency noise can be more efficiently and efficiently removed.

In the high frequency noise elimination device according to a third aspect, in the second aspect, the two pairs of conductors are wound in the axial direction through the outer peripheral surface of the ferrite core and the inner peripheral surface of the center hole. It is characterized by.

According to the high-frequency noise removing device of the third invention, the conductor can be more easily opposed to the ferrite core, and the high-frequency noise can be more efficiently and efficiently removed.

A high-frequency noise eliminator according to a fourth aspect is the second aspect, wherein one of the two pairs of conductors faces the outer peripheral surface of the ferrite core and the other opposes the inner peripheral surface of the center hole of the ferrite core. It is characterized by the following.

According to the high frequency noise elimination device of the fourth invention, high frequency noise can be eliminated with higher efficiency and higher performance.

An ignition device for an engine according to a fifth aspect of the present invention is an AC ignition device that generates AC electromotive force, a rectifier that converts the AC to DC, and a battery that stores a current converted to DC by the rectifier. An ignition device for boosting the voltage of the battery, and an ignition plug connected to the boosting device. The high frequency noise eliminator is connected to any one of the above.

According to the engine ignition device of the fifth invention, by connecting any one of the high-frequency noise removal devices of the first to fifth inventions in parallel to the battery, the current supplied from the battery or the like can be reduced. Since high quality is obtained by removing the high frequency, a high-quality current can be supplied to the boosting means, and the boosting means can boost the voltage more efficiently. For this reason, a high-quality current can be supplied to the spark plug, and the ignition energy of the spark plug can be further increased. Therefore, the performance of the engine can be further extracted, so that the engine output can be improved and the unburned components of the exhaust gas can be reduced. The ignition device for an engine according to a sixth invention is the ignition device for an engine according to the fifth invention, wherein two or more high-frequency noise elimination devices having different sizes of the ferrite core are connected in parallel to the battery. .

According to the engine ignition device of the sixth invention, high frequency noise of different frequencies can be removed by connecting in parallel high frequency noise removers of frequencies having ferrite cores of different sizes, As a result, high-frequency noise can be more efficiently and efficiently removed, and the horsepower of the engine can be further improved. Brief Description of Drawings

FIG. 1 is a schematic view of an engine ignition device according to a first embodiment. FIG. 2 is a schematic diagram of a high-frequency noise elimination device connected to the engine ignition device of the first embodiment. FIG. 3 is a schematic diagram of a high-frequency noise removing device according to a modification. FIG. 4 is a schematic view of an engine ignition device according to a second embodiment. FIG. 5 shows the ignition device for the engine of the comparative example and the first embodiment. 6 is a graph showing the relationship between the speed and the horsepower of a vehicle equipped with the device. FIG. 6 is a graph showing the relationship between the speed and the horsepower of a vehicle equipped with the engine ignition devices of the comparative example and the second embodiment. FIG. 7 is a graph showing the relationship between the speed and the horsepower of an automobile equipped with the engine ignition devices of the comparative example and the third embodiment. FIG. 8 is a graph showing the relationship between the speed and the horsepower of an automobile equipped with the engine ignition devices of the comparative example and the fourth embodiment. FIG. 9 is a graph showing the relationship between the engine speed and the horsepower increase rate of the engine equipped with the engine ignition device of the first embodiment. FIG. 10 is a graph showing the relationship between the engine speed and the horsepower increase rate of the engine equipped with the engine ignition device of the second embodiment. FIG. 11 is a graph showing the relationship between the engine speed and the horsepower increase rate of an engine equipped with the engine ignition device of the third embodiment. FIG. 12 is a graph showing the relationship between the engine speed and the horsepower increase rate of the engine equipped with the engine ignition device of the fourth embodiment. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, a first embodiment in which the present invention is applied to an ignition device for an automobile engine will be described with reference to FIG. 1 and FIG.

As shown in FIG. 1, an engine ignition device for an automobile according to the present embodiment includes an alternator 6, a regulator 7, a battery 8, an ignition coil 9, and a spark plug 10. In the above, the high-frequency noise removing device according to the present invention is connected in parallel to the battery 8.

The alternator 6 functions as AC power generation means for generating AC current by being rotationally driven by the engine. The regulator 7 is connected to the alternator 6 and functions as a rectifier that converts a current sent from the alternator 6 into a direct current. The above battery 8 is It has a function of storing the electricity sent from the urator 7. This battery 8 is a 12 V battery generally mounted on a car. The above-mentioned ignition coil 6 boosts the voltage supplied from the battery 8 to a high voltage, and the spark plug 7 generates a spark by the electricity sent from the ignition coil 6, and is mixed inside the cylinder of the engine. It has a function of igniting air. The high-frequency noise removing device 5 removes high-frequency noise such that high-frequency noise generated from the regulator 6 and the like does not reach the ignition coil 9. Hereinafter, the high-frequency noise removing device 5 will be described with reference to FIG. The high-frequency noise removing device 5 includes a ferrite core 1 and a pair of conductors 2 a and 2 b opposed to the ferrite core 1. The pair of conductors 2 a and 2 b It is electrically insulated.

The ferrite core 1 has a characteristic of absorbing high-frequency noise, and is formed by molding nickel-based ferrite into a cylindrical shape.

The conductors 2a and 2b are respectively composed of conductors 4a and 4b wound around the ferrite core 1 in the axial direction so as to pass through the center hole and the outer periphery, and each of the conductors 4a and 4b. It consists of a pair of connection terminals 3a and 3b which are connected and molded on both ends of the connection terminal.

Of the pair of connection terminals 3 a and 3 b, the connection terminal 3 b is connected to the negative pole of the battery 8 serving as the ground side of the ignition coil 9, and the connection terminal 3 a is connected to the power supply side of the ignition coil 9. Connected to the positive pole of battery 8

According to the high-frequency noise removing device 5, high-frequency noise is transmitted from the connection terminal 3 a on the power supply side of the induction coil 9 to the ferrite core 1, and high-frequency noise is absorbed by the ferrite core 1. As a result, the voltage transmitted from the alternator 6 and the regulator 7 to the battery 8 is increased. High frequency noise, which is a frequency component, is not transmitted by the high frequency noise removing device.

Further, in the present embodiment, the frequency of the high-frequency noise that can be absorbed can be changed by connecting high-frequency noise elimination device 5 having a different size of ferrite core 1 to battery 8. In particular, when the vehicle is connected to the ignition device for the engine of the vehicle as in the present embodiment, and when the size of the light core 1 is large, the acceleration performance when the vehicle is running in a medium to low speed region is improved. However, when the size of the ferrite core 1 is small, the acceleration performance when the vehicle is running in a high speed range is improved.

In the engine ignition device according to the first embodiment, FIG. 2 shows that the ferrite core 1 has an outer diameter of 16 mm, an axial length of 28 mm, and an inner diameter of 10 mm. The engine ignition device to which the high-frequency noise removing device 5 shown is connected is taken as the first embodiment, and the ferrite core 1 has an outer diameter of 16 mm, an axial length of 28 mm, and an inner diameter of 1 mm. The engine ignition device to which the high-frequency noise elimination device shown in FIG. 2 was connected as a second embodiment was set to 0 mm. It was mounted on a 0cc 5-speed manual mission vehicle, and the horsepower at the 4th speed of the vehicle was measured by chassis dynamot test. In addition, as a comparative example, the same measurement was performed for an engine ignition device to which the high-frequency noise elimination device 5 was not connected. Of the results, a graph of the relationship between speed and horsepower in the first embodiment is shown in FIG. 5, and a graph of the relationship between speed and horsepower in the second embodiment is shown in FIG. In FIGS. 5 and 6, the solid line shows the horsepower when the ignition device for the engine of the first or second embodiment is mounted, and the broken line shows the engine ignition of the comparative example. Horsepower with equipment installed. In addition, the vehicle horsepower (PS) in the first embodiment and the comparative example at the same engine speed were compared. The ratio (PS / PS „) to the horsepower (PS _n ) of the car was calculated as the rate of increase in horsepower, and the engine speed was calculated for each 100 rpm between 300 and 650 rpm. The results are shown in Table 1, the graph of the result of the first example is shown in FIG. 9, and the result of the second example is shown in FIG.

【table 1】

Example of job 1st embodiment 23rd S embodiment 3rd embodiment 4th embodiment

Horsepower horsepower

Horsepower horsepower 增 horsepower 增 horsepower

fe horsepower 5¾power

Addition rate Addition rate

3000 53.2 54.0 1.015 53.8 1.011 54.9 1.032 54.9 1.032

3100 55.0 56.7 1.031 56.6 1.029 57,1 1.038 56.8 1.033

3200 56.0 58.0 1.036 58.7 1.048 58.6 1.046 58.7 1.048

3300 57.7 60.6 1.050 59.7, 1.035 60.5 1.049 60.5 1.049

3400 61.7 62.5 1.013 60.7 0,984 62.5 1.013 63 1.021

3500 64.4 63.9 0.992 63.7 0.989 64.3 0.998 65.3 1.014

3600 65.8 67.2 1.021 67.2 1.021 68.0 1.033 67.2 1.021

3700 67.5 70.3.1.041 69.1 1.024 70.3 1.041 69.3 1.027

3800 71.1 72.3 1.017 72.0 1.013 72.1 1.014 72.1 1.014

3900 73: 1 75.0 1.026 74.2 1.015 74.6 1.021 75.9 1.038

4000 75.0 77.2 1.029 76.0 1,013 77.2 1.029 77.7 1.036

4100 76.9 79.3 1.031 78.4 1.020 79.2 1.030 79.3 1.031

4200 79.4 81.2 1.023 81.1 1.021 82.4 1.038 81.3 1.024

4300 81.5 83.3 1.022 80.9 0.993 83.6 1.026 83.3 1.022

4400 82.7 84.2 1.018 83.7 1.012 84.6 1.023 86.3 1.044

4500 84.5 85.9 ί.017 85.9 1.017 85.5 1.012 86.6 1.025

4600 85.3 87.2 1.022 86.6 1.015 86.2 1.011 87.8 1.029

4700 85.9 87.9 1.023 87.1 1.014 87.1 1.014 87.9 1.023

4800 86.6 89.6 1.035 89.1 1.029 89.1 1.029 88.1 1.017

4900 85.9 92.2 1.073 90.2 1.050 89.7 1.044 90.6 1.055

5000 87.1 92.8 1.065 88.4 1.015 90.3 1.037 91.2 1.047

5100 88.8 91.9 1.035 88.8 1.000 91.9 1.035 91.7 1.033

5200 90.7 92.3 1.018 93.5 1.031 90.5 0.998 92.2 1.017

5300 89.8 94.1 1.048 91.5 1.019 91.7 1.021 93.9 1.046

5400 89.6 92.0 1.027 92.7 1.035 92.3 1.030 94.5 1.055

5500 90.3 93.9 1.040 93.1 1.031 89.9 0.996 93.4 1.034

5600 90.3 93.8 1.039 91.7 1.016 90.8 1.006 94.4 1.045

5700 90.2 93.4 1.035 91.5 1.014 91.8 1.018 93.6 1.038

5800 91.2 93.3 1.023 94.2 1.033 92.8 1.018 93.2 1.022

5900 92.8 95.8 1.032 93.0 1.002 94.5 1.018 96 1.034

6000 90.0 94.9 1.054 92.7 1.030 93.5 1.039 96.4 1.071

6100 89.0 91.0 1.022 92.3 1.037 92.7 1.042 94.5 1.062

6200 90.0 93.9 1.043 91.5 1.017 90.3 1.003 92.1 1.023

6300 87.5 91.1 1.041 89.9 1.027 91.2 1.042 91.4 1.045

6400 85.4 88.8 1.040 87.7 1.027 88.9 1.041 90.7 1.062

6500 77.2 81.6 1.057-1 81.7 1.058 One-

In the first embodiment, as shown in FIG. 5, it can be seen that the horsepower of the first embodiment is larger than that of the comparative example in a wide speed range. As a result, high-frequency noise transmitted to the induction coil 9 is removed with high performance and high efficiency, and it can be seen that high-quality spark is generated from the ignition plug 10. Furthermore, as shown in Table 1 and FIG. 9, it can be seen that the horsepower increase rate is 1 or more over a wide range of engine speeds, that is, the horsepower is greater than that of the comparative example. In particular, when the engine speed is 330 rpm and 490 rpm, it exhibits a characteristic behavior that shows a peak, and when the engine speed is 300 rpm to 340 rpm, The horsepower increase rate can be set to 1.015 to 1.500, and when the rotational speed is 470 to 500 rpm, the horsepower increase rate is 1.023 to 1. 0 7 3 Therefore, it can be seen that the acceleration performance is particularly excellent in the range of these rotation speeds. In particular, the horsepower increase rate at 490 rpm shows a considerably large value of 1.073. Therefore, in the case of the first embodiment, the acceleration performance in the high rotation range used in the high-speed range of the vehicle is excellent, and thus the acceleration performance when the vehicle is running at a high speed is excellent. It turns out that there is.

In the case of the second embodiment, as shown in FIG. 6, it can be seen that the horsepower is larger than that of the comparative example in a wide range of speed. Furthermore, as shown in Table 1 and Fig. 10, the horsepower increase rate is greater than 1 over a wide range of engine speeds, especially when the engine speed is 3200 rpm and 4900 rpm. When the engine speed is between 300 and 300 rpm, the horsepower increase rate should be between 1.01 and 1.48. When 470 000 to 500 000 rj) in, the horsepower increase rate can be set to 1.014 to 1.500. Therefore, it can be seen that the acceleration performance is particularly excellent in the range of these rotation speeds. In the first embodiment, the first peak is located at 330 r, whereas in the second embodiment, the first peak is located at 320 rpm. As a result, the acceleration performance of the engine in the low rotation speed range is superior to that of the first embodiment, and it can be seen that the acceleration performance when the vehicle is running at medium to low speeds is superior.

Next, a modified example of the high-frequency noise removing device 5 will be described with reference to FIG. explain. The high-frequency noise elimination device 5 of the modified example includes a cylindrical ferrite core 1 and conductors 2a and 2b that are electrically insulated from each other. The ferrite core 1 is the same as that used in the first embodiment.

The conductors 2 a and 2 b include an electrode portion 1 la fitted to the center hole at one end of the ferrite core 1, an electrode portion lib fitted to the outer peripheral surface at the other end of the ferrite core 1, and a ferrite core 2. The conductors 4a and 4a connected to the outer ends of the electrodes 11a and 11b are connected to the core 1 and the electrodes 11a and 11b of the conductors 4a and 4b are connected. And connection terminals 3a and 3b connected to the end on the other side.

The connection terminal 3b is connected to the minus side of the battery 8 that is the ground side of the insulation coil 9, and the connection terminal 3a is connected to the plus side of the battery 8 that is the power supply side of the insulation coil 9. ing.

According to the high-frequency noise removing device 5 of this modification, the high-frequency noise is transmitted from the inductance coil 9 to the ferrite core 1 from the connection terminal 3a on the power supply side through the conductor 4a and the electrode portion 11a, and the ferrite core 1 This absorbs high frequency noise. As a result, the high-frequency noise, which is the high-frequency component of the voltage transmitted from the alternator 6 and the regulator 7 to the battery 8, is not transmitted by the high-frequency noise removing device 5.

In the engine ignition device according to the first embodiment, an engine ignition device to which a high-frequency noise removing device 5 shown in FIG. 3 in which the size of the ferrite core 1 is the same as that of the first embodiment is connected. Using the apparatus as a third embodiment, the performance was measured by the same method as in the above first and second embodiments. Figure 7 shows a graph of the relationship between speed and horsepower among the results. In FIG. 7, the solid line shows the horsepower when the engine ignition device of the third embodiment is mounted, and the broken line shows the horsepower when the engine ignition device of the comparative example is mounted. Horsepower. The horsepower increase rate was calculated in the same manner as in the first and second embodiments, and the results are shown in Table 1 and FIG. 11 above.

According to FIG. 7, similarly to the first and second embodiments, it can be seen that the horsepower of the third embodiment is larger than that of the comparative example in a wide speed range. Further, according to Table 1 and FIG. 11, it can be seen that the horsepower increase rate is 1 or more over a wide range of engine speeds, that is, the horsepower is increased as compared with the comparative example. In particular, it exhibits a characteristic behavior showing a peak at the engine speed of 330 rpm, 490 rpm, and 650 rpm, and the engine speed of 300 to 3 rpm. When the rpm is 400 rpm, the horsepower increase rate can be 1.013 to 1.049, and when the rotation speed is 470 to 500 rpm, the horsepower increase rate is 1 0 1 4 to 1.04 4 and when the rotational speed is 6300 to 6500 rpm, the horsepower increase rate is 1.04 1 to 1.058 and You can do it. Therefore, it can be seen that the acceleration performance is particularly excellent in the range of these rotation speeds.

Next, a second embodiment in which two high-frequency noise removing devices 5 are connected to a battery will be described with reference to FIG. An ignition device for an engine of a vehicle according to the second embodiment includes an alternator 6, a regulator 7, a nottery 8, an ignition coil 9, and a spark plug 1 similar to those of the first embodiment. 0, and two high-frequency noise removing devices 5 are connected in parallel to the battery 8.

The two high-frequency noise removing apparatuses 5 have the configuration shown in FIG. 2 or FIG. 3 similarly to the first embodiment, and the sizes of the ferrite cores 1 are different from each other.

The other configuration is the same as that of the first embodiment, and the description is omitted.

According to the present embodiment, as described in the first embodiment, By connecting the high-frequency noise removing device 5 having a different size of the core 1 to the battery 8, the frequency of the high-frequency noise that can be absorbed can be changed. Therefore, by connecting the high frequency noise elimination devices 5 having different sizes of the ferrite cores 1 in parallel, high frequency noises of different frequencies can be eliminated at the same time. In particular, as in this embodiment, when connected to an ignition device for an automobile engine, when the ferrite core 1 is large, the acceleration performance in the medium to low speed region is improved, and when the ferrite core 1 is small, the acceleration in the high speed region is improved. Since the performance is improved, the acceleration performance in both the high-speed region and the medium-low speed region is improved by connecting the high-frequency noise elimination devices 5 having different sizes to the battery 8 in parallel. Therefore, the first embodiment It has better acceleration performance in a wider range of engine speeds, that is, in the running speed range of automobiles.

In the engine ignition device according to the second embodiment, the high-frequency noise elimination device used in the first and second embodiments is connected in parallel to a battery. The performance was measured in the same manner as in the first embodiment. Figure 8 shows a graph of the relationship between speed and horsepower among the results. In FIG. 8, the solid line shows the horsepower when the engine ignition device of the fourth embodiment is mounted, and the broken line shows the horsepower when the engine ignition device of the comparative example is installed. . The horsepower increase rate was calculated in the same manner as in the first and second embodiments, and the results are shown in Tables 1 and 12 above.

According to FIG. 7, also in the fourth embodiment, similarly to the first to third embodiments, the horsepower of the fourth embodiment is larger than that of the comparative example in a wide speed range.

Furthermore, according to Table 1 and FIG. 12, the engine speed is 300000 rp π! The horsepower increase rate exceeds 1 in the whole range of ~ 650 rpm. That is, it can be seen that the horsepower is increased from the comparative example. As a result, it is clear that the acceleration performance is excellent in all the rotation speed ranges, and that the acceleration performance is excellent in almost all driving speed ranges of the vehicle. In particular, when the engine speed is 300 to 340 rpm, the horsepower increase rate can be 1.021 to 1.49, and the engine speed is 470 to 5 At 100 rpm, the horsepower increase rate can be set to 1.017 to 1.055, and when the rotation speed is 590 rpm to 200 rpm, the horsepower increase The rate can be between 1.023 and 1.071. Therefore, it can be seen that the acceleration performance is particularly excellent in the range of these rotation speeds.

The first and second embodiments do not limit the present invention, and various modifications can be made without departing from the scope of the present invention.

For example, in the present embodiment, the high-frequency noise elimination device is used for an ignition device for an engine of an automobile. However, the present invention is not limited to this. It may be connected to the side.

Furthermore, in the present embodiment, the high-frequency noise removing device 5 is connected in parallel to the battery by connecting the connection terminals 3 a and 3 b to the negative pole and the positive pole of the battery 8. The connection terminal 3a may be connected to the power supply side of the induction coil 9, that is, to the positive electrode of the battery 8, and the connection terminal 3b may be connected to the ground side.

In the present embodiment, the shape of ferrite core 1 is cylindrical, but is not limited to a cylindrical shape, and for example, a plate-shaped ferrite core may be used. Furthermore, the size of the ferrite core 1 is not limited to the present embodiment, and can be changed as appropriate depending on the application and the like.

Furthermore, in the present embodiment, nickel-based ferrite is used as the material of the ferrite core 1, but is not limited thereto. Other materials may be used as long as they are made of ferrite, such as fiber. Further, in the first and second embodiments, the winding portions 3a and 3b of the conductor 2 are each formed by covering a copper wire with an insulator. a and 3b are not limited to linear ones, and may be, for example, plate-like ones.

Furthermore, in the present embodiment, the material of the conductors 2a and 2b is not particularly limited as long as it is conductive, and can be appropriately changed depending on the purpose, application, and the like.

Further, in the second embodiment, the combination of the sizes of the ferrite cores 1 is not limited to the present embodiment, and can be appropriately changed depending on the purpose, application, and the like.

Further, in the modification, the electrode portions 11 a and lib have a structure in which a cylindrical member is fitted to the ferrite core 1, but the present invention is not limited to this structure. For example, the electrode portions 11 a and lib A conductive wire may be used as 11b, one of which may be wound around the outer peripheral surface of the ferrite core 1 and the other may be wound around the inner peripheral surface of the center hole. Industrial applicability

INDUSTRIAL APPLICABILITY The high-frequency noise removing device of the present invention is widely used for an ignition device for an engine of a car or the like, an electronic device, and the like.

Claims

The scope of the claims

1. Ferrite core and

A pair of conductors facing the ferrite core,

The high frequency noise eliminator, wherein the pair of conductors are electrically insulated from each other, and the other ends of the pair of conductors are connected in parallel to a noise removal target.

2. In Claim 1,

The high frequency noise eliminator, wherein the ferrite core is cylindrical.

3. In Claim 2,

The high frequency noise eliminator, wherein the pair of conductors are wound in the axial direction through the outer peripheral surface of the ferrite core and the inner peripheral surface of the center hole.

4. In Claim 2,

The high frequency noise eliminator is characterized in that one of the pair of conductors faces the outer peripheral surface of the ferrite core and the other faces the inner peripheral surface of the center hole of the above-mentioned fly core.

5. An AC power generating means for generating an AC electromotive force,

Rectifying means for converting the alternating current to direct current,

A battery that stores the current converted to direct current by the rectifier, a booster that boosts the voltage of the battery,

An ignition device for an engine having an ignition plug connected to the boosting means,

An engine point, wherein the high-frequency noise removing device according to any one of claims 1 to 4 is connected in parallel with the battery. Fire equipment.

6. The engine ignition device according to claim 5, wherein two or more high-frequency noise removing devices having different sizes of the ferrite core are connected in parallel to the battery.