CN212085432U

CN212085432U - Ignition coil assembly for gasoline engine and engine

Info

Publication number: CN212085432U
Application number: CN202021213587.1U
Authority: CN
Inventors: 李红星; 付强; 夏勇刚; 王杰
Original assignee: Chongqing Hecheng Electric Appliance Co ltd
Current assignee: Chongqing Hecheng Electric Appliance Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2020-12-04
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses an ignition coil assembly for a gasoline engine, which comprises an ignition coil assembly body, a high-voltage wire, an output terminal and a spark plug cap, wherein the ignition coil assembly body comprises a shell, a primary coil and a secondary coil, and one end of the shell, which is close to the secondary coil, is provided with a high-voltage nozzle; a conductive needle is arranged in the high-voltage nozzle along the axial direction of the high-voltage nozzle, one end of the conductive needle extends into the shell and is communicated with one end of the secondary coil, and the other end of the conductive needle is positioned at the inner side of the high-voltage nozzle; at least three guide ribs are uniformly distributed on the inner side wall of the high-pressure nozzle around the circumference of the inner side wall, and the guide ribs are parallel to the guide needles; one end of the high-voltage wire is inserted into the high-voltage nozzle and is tightly matched with the guide rib, so that a gap is reserved between the inner side wall of the high-voltage nozzle and the outer side wall of the high-voltage wire, and the conductive needle is inserted into the high-voltage wire and is electrically connected with the high-voltage wire. The utility model discloses can realize that the fast and stable between high-voltage line and the ignition coil is connected, reduce the assembly degree of difficulty, improve the life of high-voltage line.

Description

Ignition coil assembly for gasoline engine and engine

Technical Field

The utility model relates to the technical field of engines, concretely relates to ignition coil assembly and engine for gasoline engine.

Background

The ignition coil is a basic element for converting a low voltage of a power supply into a high voltage. An ignition coil device is generally provided in a gasoline engine of a motorcycle or an automobile, and combustion of a mixed gas in an engine cylinder is realized by the ignition coil device.

However, the conventional gasoline engine has the following problems: 1. after a terminal is usually crimped on an existing ignition coil high-voltage wire, the terminal is connected with a secondary side (output side) of the ignition coil, a tapping screw is required to be screwed into the high-voltage wire, a sharp edge of the tapping screw is easy to cut off a conductor, connection is complex, and cost is correspondingly increased. 2. When the secondary side of the ignition coil is connected to the spark plug cap through a non-damped high-voltage wire, a resistor must be added in the circuit in order to shield interference signals, and a resistor installation gap must be eliminated by using a spring and other materials. The undamped high-voltage wire and the resistor are formed by connecting two parts in series, so that the fault probability of the whole ignition coil is increased, the requirement on an assembly process is high, and the durability is more difficult to achieve. 3. The spark plug cap connected with the spark plug side is usually formed by combining a plurality of parts such as resin materials, rubber materials, conductive caps, springs, resistors, self-tapping screws and the like, the failure probability is increased, the self-tapping screw assembling process is used, the requirement on the dimensional accuracy of the self-tapping screws is high, and the preparation and use cost is improved invisibly.

SUMMERY OF THE UTILITY MODEL

The aforesaid that exists to prior art is not enough, the utility model discloses an among the aim at solution current ignition coil assembly, the high-voltage line need crimping terminal earlier after be connected with ignition coil, connect complicacy and use self-tapping screw between high-voltage line and ignition coil, the edge that easily leads to self-tapping screw to sharpen cuts off the problem of conductor and assembly difficulty, an ignition coil assembly and engine for gasoline engine are provided, can realize that the fast and stable between high-voltage line and the ignition coil is connected, reduce the assembly degree of difficulty, improve the life of high-voltage line.

In order to solve the technical problem, the utility model discloses a following technical scheme:

an ignition coil assembly for a gasoline engine comprises an ignition coil assembly body, a high-voltage wire, an output terminal and a spark plug cap, wherein the ignition coil assembly body comprises a shell, a primary coil and a secondary coil, and one end of the shell, which is close to the secondary coil, is provided with a high-voltage nozzle; a conductive needle is arranged in the high-voltage nozzle along the axial direction of the high-voltage nozzle, one end of the conductive needle extends into the shell and is communicated with one end of the secondary coil, and the other end of the conductive needle is positioned at the inner side of the high-voltage nozzle; at least three guide ribs are uniformly distributed on the inner side wall of the high-pressure nozzle around the circumference of the inner side wall, and the guide ribs are parallel to the guide needles; one end of the high-voltage wire is inserted into the high-voltage nozzle and is tightly matched with the guide rib, so that a gap is reserved between the inner side wall of the high-voltage nozzle and the outer side wall of the high-voltage wire, and the conductive needle is inserted into the high-voltage wire and is electrically connected with the high-voltage wire.

The conductive needle is arranged in the high-voltage nozzle, and the at least three guide ribs are arranged on the inner side wall of the high-voltage nozzle, so that when a high-voltage wire is contacted with the high-voltage nozzle, one end of the high-voltage wire is inserted into the high-voltage nozzle and is tightly matched with the guide ribs, and the conductive needle is inserted into the high-voltage wire and is electrically connected with the high-voltage wire, so that the high-voltage wire can be easily pressed into the high-voltage nozzle; the high-voltage nozzle is of an iron triangular structure formed by the guide ribs, so that the high-voltage wire is stabilized in a designated area, the high-voltage wire is easy and simple to assemble, and the special requirements on assembly equipment or personnel are reduced; need not at ignition coil secondary side connecting terminal and use self-tapping screw in high-voltage line, reduce material cost and cost of manufacture to need to use materials such as spring to eliminate resistance installation clearance, the assembly is simple, increases the stability and the durability of whole ignition coil assembly, has improved the life of high-voltage line.

Further, the high-voltage line is the damping high-voltage line, like this, need not to increase resistance in the circuit, has reduced the assembly degree of difficulty to the stability and the life of whole ignition coil assembly have been improved.

Furthermore, the gap between the inner side wall of the high-pressure nozzle and the outer side wall of the high-voltage wire is filled with the adhesive, so that the high-pressure nozzle and the high-voltage wire are firmly connected.

Furthermore, the adhesive is epoxy resin adhesive, so that the connecting performance is good and the cost is low.

Furthermore, the other end of the high-voltage wire is connected with an output terminal, and the output terminal is connected with a spark plug cap, so that the design is reasonable.

Further, the spark plug cap is integrally in an inverted L shape; the high-voltage wire and the output terminal are connected into a whole and then positioned in one supporting arm of the spark plug cap, and the spark plug cap is communicated with the output terminal and then positioned in the other supporting arm. Thus, the inverted L-shaped spark plug cap replaces the existing spark plug cap formed by a plurality of components such as resin materials, rubber materials, conductive caps, springs, resistors, tapping screws and the like, reduces the probability of failure, and is convenient to install and replace.

The utility model discloses still disclose an engine, the engine include gasoline engine use ignition coil assembly.

Compared with the prior art, the utility model has the advantages of as follows:

1. through set up electrically conductive needle in high-pressure nozzle to set up three at least direction muscle on high-pressure nozzle's inside wall, when high-voltage line and high-pressure nozzle contact, the one end of high-voltage line is inserted in the high-pressure nozzle and is in the same place with the tight fit of direction muscle, electrically conductive needle inserts in the high-voltage line to link with the high-voltage line electricity, like this, the high-voltage line can impress the high-pressure nozzle easily, when using electrically conductive needle to be connected with the high-voltage line, need not rotatory assembly, impress can, can not cause the damage to the conductor.

2. The high-voltage nozzle is of an iron triangular structure formed by the guide ribs, so that the high-voltage wire is stabilized in a designated area, the high-voltage wire is easy and simple to assemble, and the special requirements on assembly equipment or personnel are reduced; need not at ignition coil secondary side connecting terminal and use self-tapping screw in high-voltage line, reduce material cost and cost of manufacture to need to use materials such as spring to eliminate resistance installation clearance, the assembly is simple, increases the stability and the durability of whole ignition coil assembly, has improved the life of high-voltage line.

Drawings

Fig. 1 is a schematic diagram of an ignition coil assembly for a gasoline engine of the present invention.

Fig. 2 is a schematic diagram of an ignition coil assembly in an ignition coil assembly for a gasoline engine according to the present invention.

Fig. 3 is a schematic diagram of the casing and the high pressure nozzle of the ignition coil assembly in the ignition coil assembly for the gasoline engine of the present invention.

In the figure: ignition coil assembly 1, shell 11, primary coil 12, secondary coil 13, high-voltage nozzle 14, current conducting pin 141, guide rib 142, high-voltage wire 2, output terminal 3, spark plug cap 4.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b):

referring to fig. 1, an ignition coil assembly for a gasoline engine includes an ignition coil assembly body 1, a high voltage wire 2, an output terminal 3, and a plug cap 4. The ignition coil assembly 1 includes a housing 11, a primary coil 12, and a secondary coil 13, and the housing 11 has a high pressure nozzle 14 at an end adjacent to the secondary coil 13. In particular, referring to fig. 2, the primary coil 12 and the secondary coil 13 have two terminals, respectively. One of the terminals of the primary coil 12 is connected to a low-voltage power supply (+) and the other terminal is connected to a switching device (breaker). The secondary coil 13 is disposed coaxially with the primary coil 12, wherein one terminal of the secondary coil 13 is connected in parallel with one terminal of the primary coil 12 connected to a switching device (breaker), and the other terminal is an output terminal for outputting high voltage electricity.

Referring to fig. 3, the high pressure nozzle 14 is a tubular structure. A conductive pin 141 is arranged in the high-pressure nozzle 14 along the axial direction thereof, one end of the conductive pin 141 extends into the housing and is communicated with the output end of the secondary coil 13, and the other end is positioned inside the high-pressure nozzle 14. At least three guide ribs 142 are uniformly distributed on the inner side wall of the high pressure nozzle 14 around the circumference of the inner side wall, and the guide ribs 142 are parallel to the guide needles. High-voltage line 2 is damping high-voltage line 2, like this, need not to increase resistance in the circuit, has reduced the assembly degree of difficulty to the stability and the life of whole ignition coil assembly have been improved. During assembly, one end of the high-voltage wire 2 is inserted into the high-voltage nozzle 14 and is tightly matched with the guide rib 142, so that a gap is formed between the inner side wall of the high-voltage nozzle 14 and the outer side wall of the high-voltage wire 2, and the conductive pin 141 is inserted into the high-voltage wire 2 and is electrically connected with the high-voltage wire 2. And the gap between the inner side wall of the high-pressure nozzle 14 and the outer side wall of the high-voltage wire 2 is filled with adhesive, so that the high-pressure nozzle and the high-voltage wire are firmly connected. The adhesive is preferably epoxy resin adhesive, and has good connection performance and low cost.

Referring to fig. 1 again, the other end of the high voltage wire 2 is connected with an output terminal 3, and the output terminal 3 is connected with a spark plug cap 4, so that the design is reasonable. Specifically, the spark plug cap 4 is formed in an inverted L shape as a whole. The high-voltage wire 2 and the output terminal 3 are connected into a whole and then positioned in one support arm of the spark plug cap 4, and the spark plug cap 4 is communicated with the output terminal 3 and then positioned in the other support arm. Thus, the inverted-L-shaped spark plug cap 4 replaces the existing spark plug cap 4 formed by a plurality of components such as resin materials, rubber materials, conductive caps, springs, resistors, tapping screws and the like, thereby reducing the probability of failure, facilitating installation and replacement, and having reasonable design.

The utility model discloses still disclose an engine, the engine include gasoline engine use ignition coil assembly. Because of having above-mentioned ignition coil assembly for gasoline engine, this engine has easy to assemble and change, stability is high, long service life's advantage.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.

Claims

1. An ignition coil assembly for a gasoline engine comprises an ignition coil assembly body, a high-voltage wire, an output terminal and a spark plug cap, wherein the ignition coil assembly body comprises a shell, a primary coil and a secondary coil, and one end of the shell, which is close to the secondary coil, is provided with a high-voltage nozzle; the method is characterized in that: a conductive needle is arranged in the high-voltage nozzle along the axial direction of the high-voltage nozzle, one end of the conductive needle extends into the shell and is communicated with one end of the secondary coil, and the other end of the conductive needle is positioned at the inner side of the high-voltage nozzle; at least three guide ribs are uniformly distributed on the inner side wall of the high-pressure nozzle around the circumference of the inner side wall, and the guide ribs are parallel to the guide needles; one end of the high-voltage wire is inserted into the high-voltage nozzle and is tightly matched with the guide rib, so that a gap is reserved between the inner side wall of the high-voltage nozzle and the outer side wall of the high-voltage wire, and the conductive needle is inserted into the high-voltage wire and is electrically connected with the high-voltage wire.

2. The ignition coil assembly for a gasoline engine according to claim 1, wherein said high-voltage wire is a damping high-voltage wire.

3. The ignition coil assembly for a gasoline engine according to claim 1, wherein a gap between the inner side wall of the high pressure nozzle and the outer side wall of the high pressure line is filled with an adhesive.

4. The ignition coil assembly for a gasoline engine according to claim 3, wherein said adhesive is an epoxy resin type adhesive.

5. The ignition coil assembly for a gasoline engine according to claim 1, wherein the other end of said high voltage wire is connected to an output terminal, said output terminal being connected to a plug cap.

6. The ignition coil assembly for a gasoline engine according to claim 5, wherein said plug cap is formed in an inverted L-shape as a whole; the high-voltage wire and the output terminal are connected into a whole and then positioned in one supporting arm of the spark plug cap, and the spark plug cap is communicated with the output terminal and then positioned in the other supporting arm.

7. An engine comprising an ignition coil assembly for a gasoline engine according to any one of claims 1 to 6.