Improved injection molding ignition coil

Abstract

The utility model relates to the technical field of ignition coils, in particular to an improved injection molding ignition coil which comprises an ignition coil and a coil part, a wiring part is machined on the right portion of the upper end of the ignition coil, a cable is connected into the wiring part, and a protection assembly is arranged above the wiring part. Through cooperation of the insertion block, the cable, the sleeve, the spring, the bolt and the wiring portion, after insertion of the insertion block is completed, the sleeve is pulled upwards by a certain distance, the spring is stretched, then the bolt is tightened to achieve fixation between the insertion block and the sleeve, and therefore the spring can exert pressing force which is always downward on the insertion block, and it is guaranteed that the insertion block and the wiring portion are connected firmly; the problems that in the specific plugging process, due to the fact that the distance between the wiring part and the coil is usually small, the coil is prone to being collided when the plug is installed, and connection is prone to being loosened after long-term use only depending on suction force limiting at the contact face during plugging are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition coils, in particular to an improved injection-molded ignition coil. Background Art

[0002] The ignition coil is one of the key parts of the engine ignition device, providing sufficient energy for the spark plug to generate sufficient electric sparks. For example, a low-pressure head secondary injection molded ignition coil with application number 201820598166.1 includes a shell device, in which a coil device is clamped. Although the comparative document can improve the assembly efficiency.

[0003] However, in traditional technologies or comparative documents, the wiring process of the ignition coil is mostly to directly plug it into the wiring slot for assembly, relying only on the suction limit at the contact surface during plugging. However, in the specific plugging process, since the distance between the wiring part and the coil is usually close, the plug is prone to collision with the coil during installation. In addition, relying only on the suction limit at the contact surface during plugging is prone to loose connection problems after long-term use. Utility Model Content

[0004] The purpose of the utility model is to solve the problems that in the specific plugging process, since the distance between the wiring part and the coil is usually close, the plug is easy to cause collision with the coil when installing, and the connection is easy to become loose after long-term use by relying solely on the suction limit at the contact surface during plugging, and an improved injection molded ignition coil is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An improved injection-molded ignition coil is designed, comprising an ignition coil and a coil portion. A wiring portion is processed on the upper right portion of the ignition coil, a cable is connected inside the wiring portion, and a protective component is arranged above the wiring portion.

[0007] Preferably, the protection assembly includes a bracket, a sleeve, an insert, a bolt, a spring and a vertical cylinder;

[0008] The vertical cylinder is fixedly connected to the right side of the upper end of the outer wall of the ignition coil, the interior of the vertical cylinder is slidably connected to the lower end of the bracket, a spring is provided on the lower outer wall of the bracket, the two sides of the spring are respectively fixedly connected to the bracket and the vertical cylinder, the upper end of the bracket is fixedly connected to the sleeve, an insert block is fitted inside the sleeve, and the insert block is fixedly connected to the bottom of the outer wall of the cable, and bolts are installed at the centers of the front and rear ends of the sleeve.

[0009] Preferably, the outer wall of the plug block is plugged into the wiring portion.

[0010] Preferably, the right portion of the lower end of the ignition coil is processed with an ignition portion.

[0011] Preferably, a coil portion is processed on the left outer wall of the ignition coil.

[0012] The improved injection molded ignition coil proposed by the utility model has the following beneficial effects:

[0013] Through the cooperation between the plug block, cable, sleeve, spring, bolt and wiring part, the plug block can drive the cable to be inserted into the interior of the wiring part during use. During the process, the sleeve is located on the outer wall of the plug block to limit the position. After the plug block is plugged in, the sleeve is pulled upward for a distance to stretch the spring, and then the bolt is tightened to fix the plug block and the sleeve. In this way, the spring will apply a downward pressing force to the plug block to ensure a tight connection between the plug block and the wiring part, effectively avoiding the problem of collision with the coil during installation of the plug during the specific plugging process due to the close distance between the wiring part and the coil. In addition, relying solely on the suction limit at the contact surface during plugging is prone to loose connection after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the top view of the utility model;

[0015] Figure 2 This is a schematic diagram of the appearance of the utility model when viewed from above;

[0016] Figure 3 It is a schematic diagram of the main structure of the utility model.

[0017] In the figure: 1. ignition coil, 2. coil part, 3. protection assembly, 3a1. bracket, 3a2. sleeve, 3a3. plug, 3a4. bolt, 3a5. spring, 3a6. vertical cylinder, 4. ignition part, 5. wiring part, 6. cable. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Embodiment 1: refer to the attached Figure 1-3 In the present embodiment, an improved injection molded ignition coil includes an ignition coil 1 and a coil portion 2. A wiring portion 5 is processed on the upper right portion of the ignition coil 1, and a cable 6 is connected to the inside of the wiring portion 5. The specific model of the ignition coil 1 can be determined according to specific usage conditions. A protective component 3 is arranged above the wiring portion 5, an ignition portion 4 is processed on the lower right portion of the ignition coil 1, and a coil portion 2 is processed on the left outer wall of the ignition coil 1.

[0020] See attached Figure 1-3: In this embodiment, the protection assembly 3 includes a bracket 3a1, a sleeve 3a2, an insert 3a3, a bolt 3a4, a spring 3a5 and a vertical tube 3a6;

[0021] The vertical cylinder 3a6 is fixedly connected to the right side of the upper end of the outer wall of the ignition coil 1, and the interior of the vertical cylinder 3a6 is slidably connected to the lower end of the bracket 3a1. The lower outer wall of the bracket 3a1 is provided with a spring 3a5, and the elastic coefficient of the spring 3a5 can be determined according to the specific usage. The two sides of the spring 3a5 are respectively fixedly connected to the bracket 3a1 and the vertical cylinder 3a6, and the upper end of the bracket 3a1 is fixedly connected to the sleeve 3a2. The interior of the sleeve 3a2 is fitted with an insert block 3a3, and the insert block 3a3 is fixedly connected to the lower outer wall of the cable 6. The bolt 3a4 can lock the relative position between the sleeve 3a2 and the insert block 3a3. Bolts 3a4 are installed at the centers of the front and rear ends of the sleeve 3a2, and the outer wall of the insert block 3a3 is plugged into the wiring portion 5;

[0022] Through the cooperation among the plug block 3a3, the cable 6, the sleeve 3a2, the spring 3a5, the bolt 3a4 and the wiring part 5, the plug block 3a3 can drive the cable 6 to be inserted into the wiring part 5 during use. During the process, the sleeve 3a2 is located on the outer wall of the plug block 3a3 to limit the position. After the plug block 3a3 is plugged in, the sleeve 3a2 is pulled upward for a distance to stretch the spring 3a5, and then the bolt 3a4 is tightened to fix the plug block 3a3 and the sleeve 3a2. In this way, the spring 3a5 will apply a downward pressing force to the plug block 3a3 to ensure the tight connection between the plug block 3a3 and the wiring part 5, effectively avoiding the problem of easy collision with the coil during installation of the plug during the specific plug-in process, because the distance between the wiring part and the coil is usually close. In addition, the problem of loose connection after long-term use is easy to occur if the suction limit at the contact surface during plug-in is relied on alone.

[0023] Working principle:

[0024] When this improved injection molded ignition coil is needed, the user can first assemble the overall structure as shown in the figure. After the assembly is completed, when the ignition coil needs to be connected, the user can first hold the plug block 3a3 to make the plug block 3a3 drive the cable 6 to be inserted into the wiring part 5. During the process, the sleeve 3a2 is located on the outer wall of the plug block 3a3 to limit the position, and after the plug block 3a3 is plugged in, the sleeve 3a2 is pulled upward for a distance to stretch the spring 3a5, and then the bolt 3a4 is tightened to fix the plug block 3a3 and the sleeve 3a2. In this way, the spring 3a5 will apply a downward pressing force to the plug block 3a3 to ensure that the connection between the plug block 3a3 and the wiring part 5 is tight. Compared with traditional technologies or comparative documents, the wiring process of the ignition coil is mostly direct. The plug-in connector is assembled inside the wiring slot and only relies on the suction limit at the contact surface during plugging. However, in the specific plugging process, since the distance between the wiring part and the coil is usually close, the plug is easy to collide with the coil when installed, and only relying on the suction limit at the contact surface during plugging may cause the connection to become loose after long-term use. Therefore, the present case designs a protective component 3, so that the sleeve 3a2 can further limit the position of the plug block 3a3, and the elastic force of the spring 3a5 is used to achieve compression between the plug block 3a3 and the wiring part, which effectively avoids the problem that in the specific plugging process, since the distance between the wiring part and the coil is usually close, the plug is easy to collide with the coil when installed, and only relying on the suction limit at the contact surface during plugging may cause the connection to become loose after long-term use.

[0025] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An improved injection molded ignition coil, comprising an ignition coil (1) and a coil portion (2), characterized in that: A wiring portion (5) is processed on the right upper end of the ignition coil (1), a cable (6) is connected to the interior of the wiring portion (5), and a protective component (3) is arranged above the wiring portion (5).

2. The improved injection molded ignition coil according to claim 1, characterized in that: The protection assembly (3) comprises a bracket (3a1), a sleeve (3a2), an insert (3a3), a bolt (3a4), a spring (3a5) and a vertical cylinder (3a6); The vertical cylinder (3a6) is fixedly connected to the right side of the upper end of the outer wall of the ignition coil (1); the interior of the vertical cylinder (3a6) is slidably connected to the lower end of the bracket (3a1); a spring (3a5) is provided on the lower outer wall of the bracket (3a1); the two sides of the spring (3a5) are respectively fixedly connected to the bracket (3a1) and the vertical cylinder (3a6); the upper end of the bracket (3a1) is fixedly connected to the sleeve (3a2); the interior of the sleeve (3a2) is fitted with an insert (3a3), and the insert (3a3) is fixedly connected to the lower side of the outer wall of the cable (6); bolts (3a4) are installed at the centers of the front and rear ends of the sleeve (3a2).

3. The improved injection molded ignition coil according to claim 2, characterized in that: The outer wall of the plug block (3a3) is plugged into the wiring portion (5).

4. The improved injection molded ignition coil according to claim 1, characterized in that: An ignition portion (4) is processed on the right portion of the lower end of the ignition coil (1).

5. The improved injection molded ignition coil according to claim 1, characterized in that: The left outer wall of the ignition coil (1) is processed with a coil portion (2).

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