KR200355643Y1 - Low Voltage Pin of Ignition Coil for Auto Mobile - Google Patents

Abstract

The present invention is composed of a core, 1,2 primary spool, and primary and secondary coils, which cause a spark discharge on a spark plug to generate a high voltage capable of burning a compressed gas mixed in a combustion chamber. In the LV PIN, which is inserted into the spool and connects LV (Low Voltage) power, ground, and ECU signals, twists any point of the coil attachment portion to which the primary coil is attached. It relates to the Elbi pin of the car ignition coil, characterized in that consisting of.

Conventionally, since the shape of the LV PIN has a coil attachment portion in a straight shape, a bending phenomenon according to the shape of the simple cantilever is easily generated when the coil attachment portion is attached to the primary spool. Breakage occurs, and there is a problem that an intermittent short circuit occurs during vibration.

Therefore, the present invention is to provide a coil attachment portion of the Elpin (LV PIN) in a torsional shape to prevent the short circuit during bending and vibration in advance.

Description

Low Voltage Pin of Ignition Coil for Auto Mobile}

The present invention is composed of a core, 1,2 primary spool, and primary and secondary coils, which cause a spark discharge on a spark plug to generate a high voltage capable of burning a compressed gas mixed in a combustion chamber. In the LV PIN, which is inserted into the spool and connects LV (Low Voltage) power, ground, and ECU signals, twists any point of the coil attachment portion to which the primary coil is attached. It relates to the Elbi pin of the car ignition coil, characterized in that consisting of.

In general, a heat engine is a device that converts thermal energy into mechanical work, and is classified into an internal combustion engine and an external combustion engine according to a method of supplying thermal energy to a working fluid used to convert thermal energy into mechanical work. The internal combustion engine burns inside the engine, and converts the chemical energy held by the fuel mixer itself, which is a mixture of fuel such as gasoline and clean air, into thermal energy by combustion to directly use the work when the combustion gas expands. It is an organ.

These internal combustion engines are classified into four-cycle engines and two-cycle pipes according to the operating method. In the case of four-cycle engines, one cycle of suction, compression, combustion, and exhaust is composed of two rotations of the crankshaft, that is, four strokes of the piston.

At this time, an ignition plug (IGNITIONCOMBUSTION PLUGS) is used as a device for igniting and combusting a fuel mixer with an electrical spark in a combustion stroke after the compression stroke of an electric ignition type internal combustion engine.

1 is a schematic view showing a general ignition coil, Figure 2 is a schematic view showing a cross-sectional view of the ignition coil, the core 1 is located at the center thereof, the secondary spool 2 is fitted to the outer periphery of the core, On the outer circumference of the secondary spool 2, a secondary coil 3 made of enameled wire or the like is wound. Further, the primary spool 5 is fitted to the outside of the secondary spool 2, and the primary coil 6 is wound around the outer circumference of the primary spool 5.

A resin 4 is formed between the secondary coil 3 and the primary spool 5 so that the secondary coil 3 and the primary coil 6 are separated from each other.

The operation of the ignition coil device is as follows.

The ignition control signal from the control device of the internal combustion engine is an input signal of the IGBT that interrupts the base current from the base to the emitter, so that the current flows from the collector to the emitter as the output of the base current, that is, from the battery which is the power source. A magnetic field is generated by passing a current through the primary coil of the coil.

In the ignition of the spark plug, a current of the primary coil is cut off by the ignition signal from the control device to the IGBT to generate a large voltage electromotive force on the primary side by making the magnetic field of the primary coil zero. By generating electromotive force, a higher voltage is generated on the secondary coil of the grounding coil to spark the spark plug.

Figure 3a is a schematic diagram showing the shape of the LV pin (LV PIN) according to the prior art, Figure 3b is a perspective view showing the shape of the LV pin (LV PIN) according to the prior art, the LV PIN (7) It is to be inserted into the primary spool (5) of the ignition device to connect the Vb power supply, ground and ECU signals.

The coil bonding portion 8 of the conventional EL PIN (LV PIN) 7 is formed in a straight shape, and thus has a structural structure of a simple cantilever beam. This is because a bending shape occurs when the primary spool 5 is attached to each other, so that the coil adhesive part 8 of the LV pin 7 is easily damaged.

In addition, an intermittent short circuit occurs when the connector terminal corresponding to the LV PIN 7 is vibrated, and thus, a signal defect from an ECU is unstable, thereby causing a serious defect in driving a vehicle.

Furthermore, Figure 3c is a schematic view showing an insulating layer of the LV pin (LV PIN) according to the prior art, it is filled in the upper portion of the LV PIN (7) because the coil adhesive portion 8 is formed upward. The thickness of the insulating layer is relatively thin, thereby deteriorating the insulating effect.

The present invention is composed of a core, 1,2 primary spool, and primary and secondary coils, which cause a spark discharge on a spark plug to generate a high voltage capable of burning a compressed gas mixed in a combustion chamber. In the LV PIN, which is inserted into the spool and connects LV (Low Voltage) power, ground, and ECU signals, the coil attachment portion to which the primary coil is attached is twisted at any point and twisted. It is to prevent the bending of the EL PIN (LV PIN), and to prevent the intermittent short circuit during vibration to reduce the cost of the ignition coil in the long run.

Furthermore, it is intended to increase the thickness of the insulating layer in a given space to enhance the insulating effect.

1 is a schematic view showing a general ignition coil.

2 is a schematic view showing a cross-sectional view of a general ignition coil.

Figure 3a is a schematic diagram showing the shape of the elpin (LV PIN) according to the prior art.

Figure 3b is a perspective view showing the shape of the LV pin (LV PIN) according to the prior art

Figure 3c is a schematic diagram showing an insulating layer of the elpin (LV PIN) according to the prior art.

Figure 4a is a schematic diagram showing the shape of the elpin (LV PIN) according to the present invention.

Figure 4b is a perspective view showing the shape of the elpin (LV PIN) according to the present invention.

Figure 4c is a schematic view showing an insulating layer of the Elpin (LV PIN) according to the present invention.

<Description of Symbols for Main Parts of Drawings>

1: core 2: secondary spool

3: secondary coil 4: resin

5: Primary spool 6: Primary coil

7: LV PIN

8: Coil Adhesion Part 9: Spark Coil

10: insulation layer 11: pin

Hereinafter, with reference to the accompanying drawings for the Elbi pin of the automotive ignition coil according to the present invention in more detail as follows.

Figure 4a is a schematic view showing the shape of the LV pin (LV PIN) according to the present invention, Figure 4b is a perspective view showing the shape of the LV pin (LV PIN) according to the present invention. Referring to FIGS. 4A and 4B in addition to FIGS. 1 and 2, the main components of the ignition coil of the vehicle including the Elpin pin (LV PIN) are as follows.

An automobile ignition coil that generates a spark discharge on a spark plug to generate a high voltage capable of burning a compressed gas mixed in a combustion chamber has a core 1 at the center thereof, and a secondary spool 2 at the outer circumference of the core. ), A secondary coil 3 made of enameled wire or the like is wound on the outer circumference of the secondary spool 2, and a primary spool 5 is fitted to the outside of the secondary spool 2. The primary coil 6 is wound around the outer circumference of the primary spool 5. An LV PIN 7 is attached to the upper space of the primary spool 5, which is the ELB. The pin 11 of the pin (LV PIN) 7 is penetrated outward in the space of the primary spool 5, and the space is filled with ordinary resin to form the insulating layer 10. In other words, the insulating layer 10 described above is solidified from a conventional resin filled, which is called Elbipine (LV). This is to prevent the voltage formed in the PIN 7 from being discharged to the outside to adversely affect the electronic circuits of the automobile or to malfunction of the automobile ignition coil 9, and the thicker the insulating layer 10 is, the better the insulation effect is. Elevation is as noted.

In the ignition of the spark plug, the current to the primary coil 6 is cut off by the ignition signal from the control device to the IGBT, so that the magnetic field of the primary coil 6 is zero, and a large voltage electromotive force is applied to the primary side. And generating a higher voltage to the secondary coil 3 of the ignition coil by the generation of the electromotive force to spark the spark plug, and the LV PIN 7 is the primary spool 5. It is attached to Vb power, ground and ECU signal, and the function of the LV pin (LV PIN) shape is to determine whether short circuit and ground fault in transmitting signals to Vb power, ground and ECU It serves as an important configuration.

The present invention is characterized in that any point of the coil bonding part 8 of the LV PIN 7 is formed in a torsional shape with respect to the horizontal. This can minimize the shape that is bent when a certain force is applied when attached to the primary spool (5), it can prevent a short circuit with the primary coil (6) during vibration.

Furthermore, Figure 4c is a schematic diagram showing an insulating layer of the LV pin (LV PIN) according to the present invention, the torsional shape of the coil bonding portion 8 of the pin 11 of the LV pin (LV PIN) 7 The thickness of the insulating layer 10 is formed to be relatively thick by twisting on the same plane as the horizontal plane. As a result, the insulation effect is enhanced as compared with the conventional art.

As described above, the Elbi pin of the automotive ignition coil according to the present invention is conventionally provided with a coil bonding portion provided in a linear shape in a first torsion shape, and is bent when applying a constant force when attaching to the primary spool. It is possible to minimize the shape and to provide an advantage of preventing a short circuit with the primary coil during vibration.

In addition, it is intended to increase the insulation effect by increasing the thickness of the insulation layer by forming the twisting portion of the coil bonding in the same manner as the horizontal plane of the pin.

Claims (1)

Inserted into the primary spool of the car ignition coil, which consists of the core, the primary and secondary spools, and the primary and secondary coils, which generate a spark discharge on the spark plug to generate a high voltage to burn the compressed gas mixed in the combustion chamber. In the LV pin (LV PIN), which serves to connect LV (Low Voltage) power, ground, and ECU signals, the coil attaching portion to which the primary coil is attached is twisted to form a twist shape. Elbi pin of car ignition coil.