JPH0130855Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a power generation coil device to be attached to an internal combustion engine, and is intended to facilitate the installation and assembly of an ignition device including the power generation coil.

The power generating coil device, which is a component of the ignition system of an internal combustion engine, is designed to facilitate its assembly work.
The iron core is divided into a base core and a pole piece core, and after fitting and fixing the resin-molded winding to the base core, the pole piece core is assembled and fixed to the base core to assemble the power generation coil. had been achieved.

When assembling this base core and pole piece core, an assembly hole is cut across both the base core and pole piece core, and a tapping screw is inserted into this assembly hole. One core and assembly are maintained.

Further, with the development of semiconductor technology, non-contact ignition circuits for internal combustion engines have become extremely compact and unitized, and there are almost no restrictions on where they can be installed.

However, it is preferable to install the ignition circuit unit in a location that is more easily cooled and convenient for wiring.For this reason, conventionally, the ignition circuit unit was installed on the inner surface of the flywheel cover or on the outer plate of the crankcase. It formed a dedicated section.

For this reason, conventionally, the assembly of the generator coil device that makes up the ignition system and the assembly with the ignition circuit unit were performed completely separately, which made the assembly and installation work of the ignition system extremely efficient. I couldn't say that.

The present invention was devised in order to eliminate the dissatisfaction with the above-mentioned conventional example, and has a structure in which an ignition coil unit is integrally assembled with a generator coil device.

An embodiment of the present invention will be described below with reference to the drawings.

The power generating coil device according to the present invention includes a base core 2 of a laminated core in which a cylindrical winding 11 is fitted and fixed, and an assembly protrusion formed at the tip of the base core 2 protruding from the winding 11. A split core 1 is composed of a pole piece core 5 of a laminated core that is firmly fitted and assembled into a part 3 at an assembly notch 6, and an end edge of the assembly protrusion 3 of the base core 2 and the pole Single core 5
The base core 2 is inserted into the assembly hole 8 cut across both the edge of the assembly notch 6 and the base core 2.
A tapping screw 9 holds the pole piece core 5 together, and the tapping screw 9 allows the split core 1 to be assembled with the pole piece core 5.
The ignition circuit unit 10 is screwed and fixed to the ignition circuit unit 10.

The winding 11 is generally wound and assembled into a cylindrical shape in a synthetic resin coil case, and then molded by filling and fixing the case with mold resin.

The base core 2, which is the main part of the split core 1 into which the winding 11 is fitted, can have various structures, but in the illustrated embodiment, the split core 1 having a U-shape is formed. The base core 2 is L from the pole piece part and the part where the winding 11 is assembled.
It is shaped like a letter.

The tip of the part of the base core 2 that protrudes from the winding 11 of the part where the winding 11 is fitted and assembled is made such that it does not protrude from the imaginary extension surface of the outer surface of the part where the winding 11 is fitted and assembled. An assembly protrusion 3 is integrally formed with the assembly protrusion 3.

The pole piece core 5 is configured to form the other pole piece of the split core 1 with respect to the base core 2, and the assembly protrusion 5 is provided at a location corresponding to the assembly protrusion 3 of the base core 2. An assembly notch 6 is formed in which the portion 3 is firmly fitted and assembled.

The base core 2 and pole piece core 5 are assembled by fitting the assembly protrusion 3 into the assembly notch 6 along the protruding direction of the assembly protrusion 3. An assembly hole 8 formed across the protrusion 3 and the assembly notch 6 is formed along the displacement direction for fitting the assembly protrusion 3 into the assembly notch 6. It is cut into the end face.

Therefore, when the tapping screw 9 is inserted into the assembly hole 8 with the base core 2 and pole piece core 5 assembled, the tapping screw 9 inserted into the assembly hole 8 will cause the assembly protrusion 3 to and the assembly notch 6 are no longer able to slide in the direction of separation from each other, thereby maintaining the assembly between the base core 2 and the pole piece core 5.

The mounting holes 7 formed in the pole piece portion of the base core 2 and the pole piece core 5 are used for fixing the split core 1 to the engine case.

The ignition circuit unit 10 is assembled to the split core 1 by inserting the tapping screws 9 into the mounting holes drilled in the mounting plate, and by inserting the tapping screws 9 into the mounting holes 8. Ru.

Since the present invention is constructed as described above, the pole piece core 5 is assembled to the base core 2 to which the winding 11 is fitted and assembled, and then the tapping screw 9 assembled to the ignition circuit unit 10 is inserted into the assembly hole. By inserting and assembling the ignition circuit unit 10 into the generator coil 8, the assembly of the generator coil is completed and at the same time, the ignition circuit unit 10 is assembled with the generator coil.

In this manner, the generating coil device according to the present invention can assemble the ignition circuit unit 10 at the same time as assembling the generating coil.
can be assembled and fixed to this generating coil, so the assembly of the ignition device in the internal combustion engine is simplified, and the ignition circuit unit 10
Since the ignition device is assembled to the generating coil, the ignition device can be easily assembled to the engine case.

Furthermore, since the ignition circuit unit 10 is attached to the split core 1 together with the winding 11, wiring between the ignition circuit unit 10 and the winding 11 is not only facilitated, but also Since the winding 11 and the ignition circuit unit 10 can be manufactured integrally, the manufacturing work of the electrical components of the ignition system can be done all at once, which reduces the manufacturing and assembly work of the ignition system. will be greatly simplified.

As is clear from the above description, the present invention allows the ignition circuit unit to be integrally assembled to the generator coil at the same time as the generator coil is assembled, thereby greatly simplifying the assembly and installation of the ignition system. In addition, since the ignition circuit unit is attached to the split core together with the winding, it is not only easy to connect the winding and the ignition circuit unit, but also it is possible to connect the winding and the ignition circuit unit together. Since the ignition device can be easily manufactured, it has many excellent effects such as simplifying the electrical wiring work and structure of the ignition device.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an assembly arrangement of each component mainly consisting of a split core structure, showing an embodiment of the present invention. FIG. 2 is a longitudinal sectional view of the main part of the embodiment shown in FIG. 1. Explanation of symbols, 1...Split core, 2...Base core, 3...Assembling protrusion, 4, 7...Mounting hole, 5...
... Pole piece core, 6 ... Assembly missing part, 8 ... Assembly hole, 9 ... Tapping screw, 10 ... Ignition circuit unit, 11 ... Winding wire.

Claims (1)

[Scope of utility model registration request] A division consisting of a base core into which a winding is fitted and fixed, and a pole piece core which is firmly fitted and assembled at an assembly notch to an assembly protrusion formed at the tip of the base core protruding from the winding. a core, a tapping screw that is inserted into an assembly hole cut across both the assembly protrusion and the assembly notch to maintain the assembly between the base core and the pole piece core; and the tapping screw. and an ignition circuit unit screwed to the split core.