JPH03267579A - Distributor integrated with ignition coil - Google Patents

Abstract

PURPOSE:To reduce the leakage flux from an ignition coil by determining the shape of a stator so as to cover a pick-up coil and extending the ignition coil side to an upper housing wall, exceeding the upper part of a reluctor, and covering the upper and lower surfaces of the retractor by the stator. CONSTITUTION:The shape of a stator 6 is determined so as to cover a pick-up coil 4 and further cover the upper and lower surfaces of a reluctor 2. Further, the ignition coil side 16 of the stator 6 is spread to an upper housing wall, exceeding the upper part of the reluctor 2. The leak magnetic flux from an ignition coil 8 passes through an extension part 15 on the ignition coil side of the stator 6, and is effectively returned to the ignition coil 8. Since the magnetic resistance between the stator 6 and the reluctor 2 is made smaller than the magnetic resistance between a pick-up coil core 7 and the reluctor 2, the leakage flux supplied from the ignition coil 8 does not pass through the pick-up coil part and passes through the stator 6 and the extension part 16 of the stator. Accordingly, the leakage flux supplied from the ignition coil is effectively bypassed, and the crossing with the pick-up coil is prevented.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an ignition coil-integrated power distribution device, and is particularly applicable to internal combustion engines, which can be installed in a small space, and which reduces the amount of power from the ignition coil to the pickup coil. The present invention relates to an ignition coil integrated power distributor that can effectively reduce the influence of leakage magnetic flux.

[Conventional technology]

A general ignition system conventionally used in automobiles will be explained based on FIGS. 9 to 12. Reference numeral 101 denotes a reluctor attached to a shaft 102 that rotates in proportion to the rotation of the internal combustion engine. It will be arranged as follows. Reluctor 101, stator 104, and permanent magnet 103 form a closed magnetic circuit.

As the reluctor 101 rotates, the distance between the reluctor 101 and the stator 104 changes, causing a change in the magnetic resistance of the magnetic circuit and a change in the magnetic flux density in the magnetic circuit. An ignition control voltage 106 having a waveform as shown in FIG. 10(A) is generated in the pickup coil 105 due to changes in the magnetic flux interlinking with this coil. Reference numeral 107 denotes an ignition signal amplifier, which receives the ignition control voltage 106 and controls the current supplied to the ignition coil 109 using the ignition threshold voltage 108 shown in FIG. 10(A). Specifically, as shown in FIGS. 10(A) and 10(B), when the ignition control voltage 106 is higher than the ignition threshold voltage 108, the ignition current 110 is applied to the primary side of the ignition coil 109, and the ignition is started. 0 ignition coil 10 that cuts off ignition current 110 when control voltage 106 becomes lower than ignition threshold voltage 108
When the ignition current to the primary side of 9 is cut off, the magnetic flux in the ignition coil changes significantly, and a high voltage is induced on the secondary side.
The high voltage generated on the secondary side of the ignition coil 109 is transferred to the power distribution section 1.
11 to the spark plug 112 of each cylinder of the internal combustion engine.
distributed between a and 112b.

Ignition takes place. Note that the rotating shaft of the reluctor 101 and the shaft of the rotating member of the power distribution unit 111 are indicated by a broken line 102a.
They are linked as shown in .

As shown in Figure 11, the ignition coil core has a gap of 1
13a is formed. This gap 113a is necessary to increase the magnetic resistance of the magnetic circuit, reduce the hysteresis characteristic of magnetic permeability in the magnetic circuit during boost operation, and maintain high magnetic permeability. However, the first
As shown in Figure 1, the gap 1 of the ignition coil core 113
13a and the like are locations where irregular leakage magnetic flux 114 is very likely to be radiated. Therefore, in a power distributor in which the ignition coil core 113 and the pickup coil portion are integrated so as to be compact from the viewpoint of installation in a small space, the irregular leakage magnetic flux 114 coming out of the ignition coil core 113 interlinks with the pickup coil 105. As a result, Figure 12 (A)
, (B), the ignition control voltage 106 and the electromagnetic noise 115 due to the irregular leakage magnetic flux overlap, which disturbs the waveform of the ignition control voltage 106 and causes ignition malfunction.

Therefore, in conventional ignition coil-integrated power distributors, the entire ignition coil is generally covered with a magnetic shield plate in order to prevent ignition malfunctions caused by irregular magnetic flux leakage.

Other conventional prevention measures using magnetic shielding include arranging a magnetic shield plate to cover the periphery of the pickup coil (Japanese Patent Application Laid-open No. 59-65571), and installing a magnetic ring on the side of the ignition coil (Japanese Patent Application Laid-open No. 59-65571). Kaisho 63-205
464) was proposed. In addition, other prevention measures include devising the shape and position of the pickup coil to cancel out electromagnetic noise signals (Special Publication No. 61-30
150) was proposed.

[Problem to be solved by the invention]

However, according to the configuration of the conventional ignition coil-integrated power distributor for preventing the influence of leakage magnetic flux from the ignition coil, etc., the following problems are posed.

In the conventional example in which a magnetic shield plate is formed to cover the periphery of the pickup coil, if there is a component that penetrates the magnetic shield in a magnetically shielded space, there is a risk that a large magnetic flux will flow inside that component. There is. In the conventional example where a magnetic ring is installed on the side of the ignition coil, the eddy current generated in the magnetic shield ring becomes small depending on its placement position or shape, and there is a risk that the effect of reducing leakage magnetic flux may not be fully demonstrated. There is. For these reasons, unless the magnetic flux distribution around the ignition coil and in the magnetic shield plate and stator is analyzed and accurately estimated to optimize the position and shape of the magnetic shield plate and magnetic shield ring, the magnetic shielding effect will be reduced. become insufficient. Further, in order to obtain a good shielding effect using such conventional means, there arises a problem that the area of the magnetic shield member must be increased, and furthermore, a problem arises in that the number of man-hours for assembling the magnetic shield portion increases.

In the conventional example in which a plurality of pickup coils are used to cancel electromagnetic noise signals, the number of parts increases and the ignition timing control signal processing circuit from the pickup coil becomes complicated. A problem arises in that costs increase. moreover,
Since the electromagnetic noise signal has an irregular waveform, it is not always possible to cancel out the electromagnetic noise signal accurately.

In order to obtain a high magnetic shielding effect using a magnetic plate, a magnetic plate with high relative magnetic permeability may be used.

However, magnetic plates with high relative magnetic permeability are generally expensive and have a low saturation magnetic flux density, so when exposed to a strong magnetic field, the magnetic flux density in the magnetic plate saturates, making it difficult to obtain a sufficient magnetic shielding effect. do not have.

When magnetic shielding is achieved by completely covering the pickup coil with a magnetic plate, the top and bottom surfaces of the reluctor are covered with a stator. At this time, the reluctor and stator are in constant contact with each other, or when the reluctor is deformed or eccentric, or the power distribution device vibrates, causing problems such as abrasion of the contact surfaces and generation of heat due to friction.

Magnetic shielding is achieved by completely covering the area around the pickup coil with a magnetic plate, so if the top and bottom surfaces of the reluctor are covered with a stator, if the reluctor becomes deformed or eccentric, or the power distribution device vibrates, the reluctor can be removed from the stator. When mechanical force or vibration is applied to the reluctor or stator, there is a problem that the reluctor or stator may be deformed or destroyed due to fatigue.

As mentioned above, magnetic shielding is achieved by completely covering the area around the pickup coil with a magnetic plate, so if the top and bottom surfaces of the reluctor are covered with a stator, if the reluctor is deformed or eccentric, or the power distribution device vibrates. There is a problem in that the distance between the reluctor and the stator changes, the magnetic resistance of the pickup magnetic circuit changes, and the output voltage of the pickup coil changes.

At the top of the pickup section is a power distribution rotor that distributes the high voltage generated by the ignition coil to the spark plugs of each cylinder.

Since the stator, which is also a conductor, is placed in close proximity to the distributor rotor, the insulation from the distributor rotor to the stator breaks down and spark discharge occurs, ensuring accurate distribution of ignition voltage to the spark plugs of each cylinder. Or, there is a possibility that it will not be done efficiently.

Furthermore, if the pickup coil part to be covered has a complicated shape, the number of processing steps required to manufacture the stator increases.
There also arises the problem of increased manufacturing costs.

The purpose of the present invention is to effectively bypass the leakage magnetic flux from the ignition coil and prevent it from interlinking with the pickup coil, while using the minimum amount of material and having a compact shape. To achieve a magnetic shielding effect, to reduce wear on the contact surfaces of the stator and reluctor, and to reduce heat generation.Furthermore, to prevent vibration and force from acting on the stator and reluctor, and to reduce the distance between the stator and reluctor. Reduces changes in the way the hiccup coil comes out due to changes,
It is an object of the present invention to provide an ignition coil-integrated power distributor that prevents discharge between a stator and a power distributor rotor and can be manufactured simply and at low cost.

[Means to solve the problem]

In order to achieve the above objects, an ignition coil-integrated power distribution device according to the present invention includes a shaft that rotates in proportion to the rotational speed of a combustion engine, a reluctor attached to the shaft, and a reluctor that rotates as the reluctor rotates. An integrated ignition coil arrangement that includes a pickup coil that detects changes in magnetic flux and generates an ignition timing signal, and an ignition coil in which a primary coil and a secondary coil are wound around an ignition coil core that forms a closed magnetic path with a gap in the middle. In electric appliances, the shape of the stator is such that it surrounds the pickup coil, extends the ignition coil side beyond the top of the reactor to the upper housing wall to increase the area, and furthermore, the stator is designed to surround the top surface of the reluctor. Constructed to cover the bottom surface.

The ignition coil-integrated power distribution device of the present invention has a structure in which a plurality of other magnetic members with high saturation magnetic flux density are arranged on the ignition coil side where the magnetic flux of the magnetic shield plate on the side of the ignition coil of the stator is concentrated. configured.

The ignition coil-integrated power distributor of the present invention is further characterized in that members having low frictional resistance and being hard to wear are disposed on the upper and lower surfaces of the reluctor that may come into contact with the stator.

The ignition coil-integrated power distributor of the present invention is further characterized in that a spring mechanism is provided on the upper and lower surfaces of the reluctor of the stator, which may come into contact with the reluctor.

The ignition coil-integrated power distribution device of the present invention further includes disposing members having a relative magnetic permeability close to 1, low frictional resistance, and hard to wear on the upper and lower surfaces of the reluctor that may come into contact with the reluctor, A feature is that a spring mechanism is provided on the upper and lower surfaces of the reluctor of the stator.

The ignition coil integrated power distributor of the present invention is further characterized in that an insulating layer is formed on the surface of the stator on the ignition coil side.

The ignition coil-integrated power distributor of the present invention is further configured such that the ignition coil side portions and other members of the stator are manufactured separately, and the two are connected to manufacture the stator.

[Effect]

According to the ignition coil integrated power distributor of the present invention, the shape of the stator is such that it surrounds the pickup coil so that leakage magnetic flux from the ignition coil does not interlink with the pickup coil, and The ignition coil side extends beyond the top of the reluctor to the upper housing wall to increase the area so that the ignition coil effectively returns to the ignition coil. Furthermore, the stator covers the top and bottom surfaces of the reluctor to reduce the magnetic resistance of the magnetic circuit of the pick amplifier coil portion and increase the magnetic flux for ignition timing control in the magnetic circuit. Therefore, the number of turns of the pickup coil for obtaining a predetermined ignition timing control voltage can be reduced, and the margin against electromagnetic noise of the pink-up coil is increased.

In the ignition coil-integrated power distribution device having the above-mentioned configuration, magnetic flux concentrates in the stator, saturates the magnetic flux density in the magnetic material, and the ignition coil side is a place where the magnetic shielding effect tends to weaken. A plurality of magnetic members are arranged.

In the ignition coil-integrated power distribution device having the above-mentioned configuration, a member that has low frictional resistance and is hard to wear is used to prevent wear and heat generation on the top and bottom surfaces of the reluctor that may come into contact with the stator. has been set up.

In the ignition coil-integrated power distribution device having the above-mentioned configuration, the upper and lower surfaces of the reluctor that may come into contact with the reluctor are designed to prevent mechanical force or vibration from being applied from the reluctor to the stator due to deformation or vibration of the reluctor. A spring mechanism is configured at the stator contact portion.

In the ignition coil-integrated power distributor having the above-mentioned configuration, there is a possibility of contact with the reluctor so that the distance between the reluctor and the stator does not change due to deformation or vibration of the reluctor and the magnetic resistance of the magnetic circuit in the pickup section changes. A member with a relative magnetic permeability close to 1, low frictional resistance, and hard to wear is arranged on the upper and lower surfaces of a reluctor, and a spring mechanism is configured at the contact portion of the stator with the upper and lower surfaces of the reluctor. There is.

In the ignition coil integrated power distributor configured as described above, an insulating layer is formed on the ignition coil side of the stator so as to ensure insulation between the power distributor rotor and the stator.

In the ignition coil-integrated power distribution device with the above-mentioned configuration, manufacturing man-hours can be reduced even if the stator has a complicated shape.
In order to suppress the increase in manufacturing costs, the ignition coil side of the stator and other members are manufactured separately, and the two are connected to manufacture the stator.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 show a first embodiment of the ignition coil-type power distributor according to the present invention.
The figure is a sectional view taken along the line AA' in FIG.

In Fig. 1, reference numeral 1 denotes a housing of a power distribution device, and a base 1a of the housing 1 rotatably supports a shaft 3 to which a reluctor 2 is fixed. Pickup coil core 7 around which coil 4 is wound, permanent magnet 5 and stator 6
are arranged in a predetermined structure so that they together with the reluctor 2 form a magnetic circuit. The shaft 3 transmits the rotational force of a crankshaft of an internal combustion engine (not shown), and rotates at a speed proportional to the rotational speed of the internal combustion engine.

When the shaft 3 rotates, the reluctor 2 having the reluctor protrusion 2a also rotates, and the distance between it and the pickup coil core 7 changes, changing the magnetic resistance of the magnetic circuit, thereby changing the magnetic flux in the magnetic circuit. , an ignition control voltage signal is generated.

The ignition coil 8 is placed at a position approximately 3 to 4aIl above the reluctor 2.
is arranged, and the ignition coil 8 is fixed to the supporting inner wall member 1b of the power distributor housing 1.
is a partial coil, 10 is a secondary coil, 11 is a coil core, and - secondary coil 9 and secondary coil 10 are coil core 1.
1 and coaxially wound around the core central portion 11a of the core.

As shown in FIG. 1, the coil core 1o is arranged in a substantially horizontal position. Reference numeral 12 denotes an ignition coil output electrode that is arranged to protrude downward in the figure from the lower part of the ignition coil 8, and the lower end of the coil output electrode 12 is in contact with the rotor head electrode 13b of the rotor head 13. The rotor head 13 is attached to the tip of the rotating shaft 3 and rotates in conjunction with the rotation of the internal combustion engine. The rotor head electrode 13b is formed from the center to the tip of the rotor head 13. Side electrodes 14 equal in number to the number of cylinders of the internal combustion engine are disposed around the rotor head 13, and their tips 13a come into contact with the side electrodes 14 as the rotor head 13 rotates. With this configuration, the ignition voltage boosted by the ignition coil 8 is transferred to the coil output electrode 2. The fuel is distributed and supplied to the spark plugs of each cylinder through the rotor head electrode 13b and the side electrode 14 by the rotation of the rotor head 13.

Core center portion 11 of coil core 11 arranged in a horizontal position
a is formed, for example, in the shape of a rectangular parallelepiped, and a gap 15 is provided at both ends of the core central portion 11a in FIG. 1, so that a gap is formed in a part of the magnetic path formed by the coil core 11. . In Figure 1, the central part of the core 1
The coil 1a is disposed with its longitudinal direction facing sideways, and a closed magnetic path is formed by the coil core 11 on both sides of the coil 1a in a horizontal plane.

In this embodiment, the stator 6 is shaped to surround the pickup coil 4 and cover the top and bottom surfaces of the reluctor 2. Furthermore, the ignition coil side 16 of the stator 6 is widened beyond the top of the reluctor 2 to the upper housing wall. Here, the leakage magnetic flux from the ignition coil 8 is
effectively returns to the ignition coil 8 through an extension 15 on the ignition coil side of the ignition coil 8 . In addition, the stator 6 surrounds the pickup coil 4 and further covers the upper and lower surfaces of the reluctor 2, so that the magnetic resistance between the stator 6 and 95952 is made smaller than the magnetic resistance between the pickup coil core 7 and 95952. . Therefore, the leakage magnetic flux from the ignition coil 8 passes through the stator 6 and the stator extension 16 without passing through the pickup coil section. Furthermore, since the magnetic resistance of the magnetic circuit of the pickup coil section is made smaller than the magnetic resistance of a conventional pickup coil section, the magnetic flux for ignition timing control in the magnetic circuit increases. The number of turns of the pickup coil 4 required to obtain a predetermined ignition timing control voltage can be reduced, and the margin against electromagnetic noise of the pickup coil can be increased.

FIG. 3 shows a magnetic plate 1 with low relative permeability and high saturation magnetic flux density on the ignition coil side of the stator extension 16 of the first embodiment.
This is a second embodiment of the present invention in which 7 are installed with a gap between them. In order to enhance the magnetic shielding effect, the stator 6 may be constructed using a magnetic material with high relative magnetic permeability.

However, a magnetic plate with a high relative permeability generally has a low saturation magnetic flux density and loses its magnetic shielding effect when exposed to a strong magnetic field. Therefore, in this embodiment, the ignition coil 8
The magnetic flux leaking from the ? Shielding takes place. Therefore, according to the configuration of this embodiment, the magnetic shielding effect is not lost even when exposed to a strong magnetic field, and a gap is formed between the stator 6 and the magnetic material of the stator extension 15. Therefore, the magnetic flux in the outer magnetic body does not enter the inner magnetic body and saturate the magnetic flux density of the inner magnetic body.

FIG. 4 shows a third embodiment of the present invention in which members 18 with low frictional resistance and hard to wear are installed on the upper and lower surfaces of the reluctor 2 of the first embodiment. In order to reduce the magnetic resistance between the reluctor 6 and the reluctor 2, the stator 6 covers the upper and lower surfaces of the reluctor 2. Here, the stator 6 is in contact with the reluctor 2 or is facing the reluctor 2 with a small gap maintained therebetween. Therefore, the reluctor 2 and the stator 6 rub against each other at all times or when the reluctor 2 is deformed or eccentric or the power distributor vibrates. In this embodiment, the reluctor 2
Even if the reluctor 2 and the stator 6 rub against each other, the frictional resistance between the reluctor 2 and the stator 6 is small, so no heat is generated or wear occurs.

FIG. 5 shows a fourth embodiment of the present invention in which a spring mechanism 19 such as a bellows is formed on the stator near the upper and lower surfaces of the reluctor 2 of the first embodiment. As described in the third embodiment, the stator 6 is in contact with the reluctor 2 or faces the reluctor 2 with a small distance therebetween.
Reluctor 2 may become deformed or eccentric, or the power distributor may vibrate.
Even if mechanical force or vibration is applied to the reluctor 2 or the stator 6, the reluctor 2 or the stator 6 will not be deformed or destroyed due to fatigue, and the reliability of the power distributor will not be impaired.

FIG. 6 shows a first embodiment in which a spring mechanism 19 such as a bellows is formed on the stator near the upper and lower surfaces of the reluctor 2, so that the upper and lower surfaces of the reluctor 2 have low frictional resistance and are hard to wear.
This is a fifth embodiment of the present invention in which a member 20 whose relative magnetic permeability is close to 1 is installed. In order to obtain a stable and reliable ignition timing control signal from the pickup coil 4, it is necessary that the magnetic resistance of the portion of the magnetic circuit other than between the reluctor 2 and the pickup coil core 7 does not change. As described in the third embodiment, the stator 6 is in contact with the reluctor 2 or faces the reluctor 2 at a small distance. Since the distance between the reluctor 2 and the stator 6 does not change and the magnetic resistance of this part does not change, a stable and reliable ignition timing control signal can be obtained.
The figure shows a sixth embodiment of the present invention in which an insulating layer 21 is formed on the ignition coil side of the stator extension 15 of the first embodiment. A power distributor rotor head 13 for distributing ignition current to the spark plugs of each cylinder is arranged closely between the pickup coil 4 and the ignition coil 8. The stator 6 is both a magnetic material and a conductor, but since the insulating layer 21 is formed on the surface of the stator 6, the insulation between the power distributor rotor head 13 and the stator 6 may be broken and spark discharge may occur. There is no.

FIG. 8 shows the seventh manufacturing method in which the stator 6 of the first embodiment is manufactured by dividing it into simple shapes, and the stator 6 is manufactured as a unit when assembling the ignition coil integrated power distributor. This is an example.

According to this embodiment, even if the stator 6 has a complicated shape, it is possible to reduce the number of manufacturing steps and reduce the manufacturing cost.

〔Effect of the invention〕

Since the present invention is configured as described below, it has the effects described below.

The shape of the stator surrounds the pickup coil, and
The ignition coil side is extended beyond the reluctor to near the upper housing to increase the area. Furthermore, by covering the top and bottom surfaces of the reluctor with the stator, the magnetic resistance of the magnetic circuit of the pickup coil section is reduced, and the magnetic flux for ignition timing control in the magnetic circuit is increased, thereby obtaining a predetermined ignition timing control voltage. The number of turns of the pickup coil is reduced. Therefore, the influence of leakage magnetic flux from the ignition coil to the pickup coil is reduced.

Multiple other magnetic members with low relative magnetic permeability and high saturation magnetic flux density are placed on the ignition coil side of the stator at a location where magnetic flux tends to concentrate and saturate the magnetic flux density in the magnetic material, weakening the magnetic shielding effect. Therefore, even if strong leakage magnetic flux leaks from the ignition coil, the magnetic shielding effect on the pickup coil will not disappear.

Since members with low frictional resistance and hard to wear are disposed on the upper and lower surfaces of the reluctor that may come into contact with the stator, the stator and reluctor do not wear out or generate heat.

Since a spring mechanism such as a bellows is constructed at the contact area of the stator near the upper and lower surfaces of the reluctor that may come into contact with the reluctor, deformation or eccentricity of the reluctor or vibration of the power distributor may cause mechanical damage from the reluctor to the stator. Even if force or vibration is applied, the reluctor and stator will not be deformed or destroyed due to fatigue, and the reliability of the power distribution device will not be impaired.

A spring mechanism such as a bellows is constructed at the contact part of the stator near the upper and lower surfaces of the reluctor that may come into contact with the reluctor, and the upper and lower surfaces of the reluctor have low frictional resistance and are resistant to wear, and have a relative magnetic permeability. Since the members with a value close to 1 are arranged, a stable ignition timing signal can be obtained even if the reluctor is deformed or eccentric, or the power distributor vibrates.

Since an insulating layer is formed on the ignition coil side of the stator,
The insulation between the distributor rotor and stator will not be lost.

Because the ignition coil side and other parts of the stator are manufactured separately and the two are connected to manufacture the stator,
Even if the stator has a complicated shape, the number of manufacturing steps will not increase and the manufacturing cost will not increase.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of a first embodiment of an ignition coil integrated power distributor according to the present invention, FIG. 2 is a cross-sectional view taken along line A-A' in FIG. 1, and FIGS. FIG. 9 is a system diagram of the ignition coil integrated power distributor;
Figure 1o is a waveform diagram showing the ignition control voltage and ignition current.
FIG. 1 is a perspective view for explaining the leakage magnetic flux from the ignition coil, and FIG. 12 is a waveform diagram when the leakage magnetic flux is added as noise. DESCRIPTION OF SYMBOLS 1...Distributor housing, 1a...Distributor housing base, 1b...Distributor housing support inner wall member, 2
゜101... Reluctor, 3,102... Shaft,
102a...Dotted line showing interlocking of the reluctor and the shaft of the power distributor, 4.105...Pickup coil, 5,1
03... Permanent magnet, 6,104... Stator, 7.
...Pickup coil core, 8,109...Ignition coil, 99. . - Secondary coil, 10... Secondary coil, 11... Coil core, lla... Coil core center portion, 12... Ignition coil output electrode, 13... Rotor head, 13a...
・Rotor head electrode tip, 13b...Rotor head electrode, 14...Side electrode, 15...Gap, 16...
・Extension of stator, 17...Magnetic plate with low relative magnetic permeability and high saturation magnetic flux density, 18...Plate made of material with low coefficient of friction and excellent wear resistance, 19...Spring such as bellows Mechanism, 20... Member with a small coefficient of friction, excellent wear resistance, and relative permeability close to 1, 21... Insulating layer, 106...
- Ignition control voltage, 107...Ignition signal amplifier, 108
...Ignition threshold voltage, 110...Ignition current, 111
...Power distribution section, 112a to 112d...Ignition flag,
113... Ignition coil core, 113a... Ignition coil core gap, 141... Irregular leakage magnetic flux, 115
...An electromagnetic thing? No. / Concave Urazu No. Fist S Figure No. 7o" 1・-, Shakuko 1 Le Kenme Bōkubo 0 Wa No. 1 1￥J

Claims (1)

[Claims] 1. A shaft that rotates in proportion to the rotational speed of the internal combustion engine, a reluctor attached to the shaft, and a pickup coil that detects changes in magnetic flux accompanying the rotation of the reluctor and generates an ignition timing signal. a stator that forms a closed magnetic path together with the shaft and the pickup coil; and an ignition coil that has a primary coil and a secondary coil wound around the core of the ignition coil that forms a closed magnetic path with a gap in between. In the coil-integrated power distributor, the stator is shaped to surround the pickup coil, and the ignition coil side extends beyond the top of the reluctor to the upper housing wall to increase the area, and the stator covers the reluctor. An ignition coil-integrated power distribution device characterized by being configured to cover the top and bottom surfaces of the ignition coil. 2. In claim 1, a plurality of other magnetic members having high saturation magnetic flux density are disposed at intervals on the side of the ignition coil of the stator where magnetic flux is concentrated. The configured ignition coil integrated power distribution device. 3. The ignition coil-integrated power distributor according to claim 1 or 2, wherein members having low frictional resistance and being hard to wear are disposed on the upper and lower surfaces of the reluctor that may come into contact with the stator. 4. The ignition coil-integrated power distributor according to claim 1, wherein a spring mechanism is provided on an upper surface and a lower surface of the reluctor of the stator that may come into contact with the reluctor. 5. In claim 1 or 2, members having a relative magnetic permeability close to 1, low frictional resistance, and hard to wear are disposed on the upper and lower surfaces of the reluctor that may come into contact with the reluctor, and A power distributor with an integrated ignition coil that has a spring mechanism on the top and bottom of the reluctor. 6. The ignition coil integrated power distributor according to claim 1, wherein an insulating layer is formed on a surface of the stator on the ignition coil side. 7. The integrated ignition coil power distributor according to any one of claims 1 to 6, wherein the ignition coil side portions and other parts of the stator are manufactured separately and the two are connected to manufacture the stator.