An automotive ignition coil assembly

Abstract

This utility model discloses an automotive ignition coil assembly, relating to the field of ignition coil technology. It includes a housing, with mounting brackets fixedly mounted on both sides. Each mounting bracket has a mounting hole, and the inner side of the mounting hole has a spiral groove. The mounting hole is spirally connected to a connecting bolt via the spiral groove. Limiting grooves are provided on both sides of the connecting bolt. One side of the mounting hole is connected to a mounting groove, which is C-shaped and horizontal relative to the mounting bracket. A limiting rod is installed in the mounting groove, and the limiting rod is adapted to the mounting groove. The other end of the limiting rod is located in the mounting hole and adapted to the limiting groove. This utility model uses a connecting bolt spirally mounted in the mounting hole, and the limiting rod inserted into the limiting groove to restrict the connecting bolt, preventing rotation. Simultaneously, the thread prevents axial movement of the connecting bolt, thus restricting the connecting bolt and preventing it from detaching.

Description

Technical Field

[0001] This utility model relates to the field of ignition coil technology, specifically to an automotive ignition coil assembly. Background Technology

[0002] The ignition coil is an important component of the ignition system of a car's gasoline engine. It is mainly used to convert the low-voltage electricity in the car into high voltage so that the spark plug can generate a spark with enough energy to ignite the air-fuel mixture.

[0003] Chinese utility model patent application number 202121655910.5 provides an ignition coil assembly for automobiles. By setting a ring-shaped second insert in the bushing, when a bolt is installed in the bushing, the bolt can be pre-locked with the second insert. That is, the manufacturer can pre-install the bolt in the bushing during the production of the ignition coil assembly. In this way, when the installer fixes the ignition coil assembly to the engine, there is no need to remove the bolt separately, which can bring convenience to the installer.

[0004] However, during the use of the above equipment, it was found that the bumps and vibrations of the vehicle can easily cause the bolts to gradually loosen, especially during long-distance transportation or in poor road conditions. Continuous vibration can cause the bolts to rotate and then come off the pre-locked state, so that the installers will find that the bolts have become loose or even lost when they use the equipment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automotive ignition coil assembly that solves the problem mentioned in the background art where continuous vibration during long-distance transportation or in poor road conditions can easily cause rotation, leading to the bolts coming loose from the pre-locked state.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automotive ignition coil assembly, comprising a housing, with mounting brackets fixedly disposed on both sides of the housing. The mounting brackets have mounting holes, and the inner side of each mounting hole has a spiral groove. The mounting holes are spirally connected to connecting bolts via the spiral grooves. Limiting grooves are provided on both sides of each connecting bolt. One side of the mounting hole is connected to a mounting groove, which is C-shaped and horizontal relative to the mounting brackets. A limiting rod is installed in the mounting groove, and the limiting rod is adapted to the mounting groove. One end of the mounting groove is connected to a movable groove, and one end of the limiting rod is disposed in the movable groove. One end of the limiting rod is fixedly connected to a limiting plate, the diameter of which is adapted to the movable groove. The diameter of the movable groove is larger than the diameter of the mounting groove. The other end of the limiting rod is disposed in the mounting hole and adapted to the limiting groove.

[0007] Preferably, a movable plate is rotatably mounted on the limiting rod, the movable plate is disposed in a movable groove, and slide rails are provided on both sides of the movable groove. The movable plate is slidably mounted in the slide rails by fixing blocks on both sides.

[0008] Preferably, a spring is connected to one side of the movable plate, and the movable plate is connected to one end of the movable groove through the spring.

[0009] Preferably, a slot is provided on one side of the mounting bracket, the slot is semi-circular, and the mounting groove passes through the slot.

[0010] Preferably, the mounting frame has a placement groove, which is connected to the mounting groove and has the same diameter. The placement groove is vertical relative to the mounting frame, and the placement groove and the moving groove are on the same axis.

[0011] This utility model provides an automotive ignition coil assembly. It has the following beneficial effects:

[0012] (1) The present invention uses a connecting bolt screwed into the mounting hole and a limiting rod inserted into the limiting groove to restrict the connecting bolt and prevent the connecting bolt from rotating. At the same time, the thread can prevent the connecting bolt from moving axially, thereby restricting the connecting bolt and preventing the connecting bolt from coming off.

[0013] (2) By setting a movable plate and a spring, the movable plate is in contact with the limiting plate and the spring is used to limit the position, thereby preventing the limiting rod from being displaced unexpectedly and thus maintaining the limiting effect on the connecting bolt.

[0014] This solves the problem that continuous vibration can easily cause the bolts to rotate and come off the pre-locked state during long-distance transportation or in poor road conditions. Attached Figure Description

[0015] Figure 1 This is a diagram showing the overall structure of the present utility model;

[0016] Figure 2 This utility model Figure 1 Structural diagram of the connecting bolt;

[0017] Figure 3 This utility model Figure 1 Structural diagram of the mounting bracket and limiting rod;

[0018] Figure 4 This utility model Figure 3 Internal structure diagram of the mounting bracket;

[0019] Figure 5 This utility model Figure 3An enlarged schematic diagram of part A in the middle.

[0020] In the diagram, 1 is the housing; 11 is the mounting bracket; 111 is the mounting hole; 112 is the slot; 113 is the placement slot; 114 is the mounting slot; 115 is the moving slot; 1151 is the slide; 1152 is the spring; 1153 is the moving plate; 2 is the connecting bolt; 21 is the limiting slot; 3 is the limiting rod; and 31 is the limiting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figures 1-5 An automotive ignition coil assembly includes a housing 1. Mounting brackets 11 are fixedly mounted on both sides of the housing 1. Mounting brackets 11 have mounting holes 111 with spiral grooves inside. The mounting holes 111 are spirally connected to connecting bolts 2 via these spiral grooves. Limiting grooves 21 are provided on both sides of the connecting bolts 2. One side of the mounting hole 111 is connected to a mounting groove 114, which is C-shaped and horizontal relative to the mounting brackets 11. A limiting rod 3 is installed in the mounting groove 114 and is adapted to fit the mounting groove 114. One end of the mounting groove 114 is connected to a movable groove 115. One end of the limiting rod 3 is located in the movable groove 115 and is fixedly connected to a limiting plate 31. The diameter of the limiting plate 31 is adapted to the movable groove 115, which has a larger diameter than the mounting groove 114. The other end of the limiting rod 3 is located in the mounting hole 111 and is adapted to the limiting groove 21.

[0023] Specifically, the connecting bolt 2 is screwed into the mounting hole 111 through the spiral groove, causing the limiting groove 21 on the connecting bolt 2 to correspond with the mounting groove 114. This allows one end of the limiting rod 3 in the mounting groove 114 to be positioned in the limiting groove 21. When the limiting rod 3 is inserted into the limiting groove 21, it directly and mechanically blocks the rotation of the connecting bolt 2. Since the limiting rod 3 is located in the mounting groove 114, and the mounting groove 114 is a stable structure relative to the mounting bracket 11, when the connecting bolt 2 is subjected to external forces such as vibration or bumps that attempt to rotate it, the limiting rod 3 will prevent the limiting groove 21 from rotating accordingly. This limits the unintended rotation of the connecting bolt 2, thereby preventing the connecting bolt 2 from detaching from the mounting bracket 11 and ensuring that the connecting bolt 2 remains in the mounting hole 111. When installing the ignition coil, the operator does not need to remove the bolt separately, thus providing convenience for the operator.

[0024] Example 2: To avoid the problem of the limit rod 3 wobbling, please refer to... Figures 1-5 Based on embodiment 1, a movable plate 1153 is rotatably mounted on the limiting rod 3. The movable plate 1153 is set in the movable groove 115. Slide rails 1151 are opened on both sides of the movable groove 115. The movable plate 1153 is slidably mounted in the slide rails 1151 through the fixing blocks on both sides of it.

[0025] A spring 1152 is connected to one side of the movable plate 1153, and the movable plate 1153 is connected to one end of the movable groove 115 through the spring 1152.

[0026] A slot 112 is provided on one side of the mounting bracket 11. The slot 112 is semi-circular, and the mounting groove 114 passes through the slot 112.

[0027] The mounting bracket 11 has a placement groove 113, which is connected to the mounting groove 114 and has the same diameter as the mounting groove 114. The placement groove 113 is vertical relative to the mounting bracket 11, and the placement groove 113 and the moving groove 115 are on the same axis.

[0028] Specifically, when the limiting rod 3 is in the working position, the spring 1152 is in its normal state. The spring 1152 restricts the moving plate 1153. When the limiting rod 3 tends to move in the direction of disengaging from the limiting groove 21, since the moving plate 1153 and the limiting rod 3 are rotatably mounted and the diameter of the limiting plate 31 is larger than the diameter of the limiting rod 3, the moving plate 1153 will move along with the limiting plate 31. At this time, the spring 1152 will resist the moving plate 1153 and compress the spring 1152. The spring 1152 will generate a spring force opposite to the compression direction. This spring force acts on the moving plate 1153, and then the moving plate 1153 generates a force on the limiting rod 3 to prevent it from continuing to move in the disengaging direction. This prevents the limiting rod 3 from disengaging from the limiting groove 21. At the same time, the limiting rod 3 is restricted by the mounting groove 114 to avoid deflection, ensuring that the limiting rod 3 remains stable and thus guaranteeing its limiting effect.

[0029] When it is necessary to rotate the connecting bolt 2, the operator pulls the limiting rod 3 through the slot 112, causing one end of the limiting rod 3 to disengage from the limiting slot 21. At the same time, the limiting plate 31 connected to the other end of the limiting rod 3 pushes the moving plate 1153 to move along the slide rail 1151, compressing the spring 1152. When the end of the limiting rod 3 near the limiting slot 21 moves out of the mounting bracket 11, the operator controls the limiting rod 3 to rotate around the moving slot 115, while the moving plate 1153 is connected to the slide rail 1151 by the fixing blocks on both sides. The cooperation of the limit plate 31 prevents the moving plate 1153 from rotating under the rotation of the limit plate 31, keeps the spring 1152 stable, and prevents the spring 1152 from twisting. When the limit rod 3 rotates to correspond with the placement groove 113, the operator releases the limit rod 3, causing the spring 1152 to lose the external force restriction and return to its original state and push the limit plate 31 to move in the opposite direction, so that the limit rod 3 enters the placement groove 113 and remains stable. This makes it easier for the operator to rotate the connecting bolt 2 to install or remove the ignition coil.

[0030] After installation or disassembly, the operator rotates the limiting rod 3 out of the placement slot 113 and aligns it with the limiting slot 21 again, then releases the limiting rod 3. At this time, the spring 1152, no longer restrained by external force, will return to its original state based on its elasticity. The resulting elastic force pushes the limiting plate 31 to move in the opposite direction, thereby driving the limiting rod 3 to move towards the limiting slot 21 until one end of the limiting rod 3 is accurately inserted into the limiting slot 21, thus restricting the connecting bolt 2 again and keeping it stable.

[0031] Working principle: Under normal conditions, the connecting bolt 2 is in the mounting hole 111, and one end of the limiting rod 3 in the mounting groove 114 is inserted into the limiting groove 21, preventing the connecting bolt 2 from rotating unexpectedly and preventing it from dislodging from the mounting hole 111. When it is necessary to rotate the connecting bolt 2, the operator pulls the limiting rod 3 through the semi-circular groove 112 on one side of the mounting frame 11, causing one end of it to disengage from the limiting groove 21. At the same time, the limiting plate 31 drives the moving plate 1153 to move along the slide rail 1151 and compress the spring 1152. When the end of the limiting rod 3 close to the limiting groove 21 moves out of the mounting frame 11, the operator rotates the limiting rod 3 around the moving groove 115. At this time, the moving plate 1153 does not rotate with the limiting plate 31 because the fixed block cooperates with the slide rail 1151, keeping the spring 1152 stable and without twisting. Once the limiting rod 3 is rotated to align with the vertical placement slot 113, the limiting rod 3 is released. The spring 1152 then pushes the limiting plate 31 to move in the opposite direction, causing the limiting rod 3 to enter the placement slot 113 and remain stable. This releases the rotation restriction on the connecting bolt 2, allowing the operator to rotate the connecting bolt 2 for ignition coil installation or removal. After installation or removal, the operator rotates the limiting rod 3 out of the placement slot 113 and aligns it with the limiting slot 21 again before releasing it. The spring 1152 then pushes the limiting plate 31 to move in the opposite direction again, causing one end of the limiting rod 3 to insert into the limiting slot 21, thus restricting the connecting bolt 2 again and maintaining its stability.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automotive ignition coil assembly, comprising a housing (1), characterized in that: Mounting brackets (11) are fixedly provided on both sides of the housing (1). Mounting brackets (11) have mounting holes (111) and spiral grooves are provided inside the mounting holes (111). The mounting holes (111) are spirally connected to connecting bolts (2) through the spiral grooves. Limiting grooves (21) are provided on both sides of the connecting bolts (2). One side of the mounting hole (111) is connected to a mounting groove (114). The mounting groove (114) is C-shaped and horizontal relative to the mounting brackets (11). Limiting grooves are installed in the mounting groove (114). Positioning rod (3), the positioning rod (3) is adapted to the mounting groove (114), one end of the mounting groove (114) is connected to the moving groove (115), one end of the positioning rod (3) is set in the moving groove (115), one end of the positioning rod (3) is fixedly connected to the positioning plate (31), the diameter of the positioning plate (31) is adapted to the moving groove (115), the diameter of the moving groove (115) is larger than the diameter of the mounting groove (114), the other end of the positioning rod (3) is set in the mounting hole (111) and is adapted to the positioning groove (21).

2. The automotive ignition coil assembly according to claim 1, characterized in that: A movable plate (1153) is rotatably mounted on the limiting rod (3). The movable plate (1153) is set in the movable groove (115). Slides (1151) are opened on both sides of the movable groove (115). The movable plate (1153) is slidably installed in the slides (1151) through the fixing blocks on both sides.

3. The automotive ignition coil assembly according to claim 2, characterized in that: A spring (1152) is connected to one side of the movable plate (1153), and the movable plate (1153) is connected to one end of the movable groove (115) through the spring (1152).

4. The automotive ignition coil assembly according to claim 1, characterized in that: A slot (112) is provided on one side of the mounting bracket (11), the slot (112) is semi-circular, and the mounting groove (114) passes through the slot (112).

5. The automotive ignition coil assembly according to claim 1, characterized in that: The mounting bracket (11) has a placement groove (113) which is connected to the mounting groove (114) and has the same diameter as the mounting groove (114). The placement groove (113) is vertical relative to the mounting bracket (11), and the placement groove (113) and the moving groove (115) are on the same axis.

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