A device for testing the life of an automobile ignition coil

Abstract

This utility model relates to the field of automotive equipment testing technology and discloses an automotive ignition coil life testing device, including a housing. A fixed partition is fixedly connected inside the housing, and an energizing mechanism is fixedly connected to one side of the fixed partition. The energizing mechanism includes an L-shaped connecting plate, a round rod fixedly connected to the top of the L-shaped connecting plate, a conductive plate slidably connected to the outside of the round rod, and a return spring sleeved on the outside of the round rod. A drive assembly providing rotational force is fixedly connected inside the L-shaped connecting plate. In this utility model, the drive motor pushes the conductive plate to repeatedly slide on the surfaces of wire two and wire one via an insulated elliptical wheel, forming a circuit with the battery's electrical energy, simulating the automotive ignition process. This allows the coil body to convert into a high-voltage current, which is transmitted to the spark plug to generate an electric spark, enabling combined testing of the ignition coil and spark plug, and allowing for the detection of the ignition coil's quality.

Description

Technical Field

[0001] This utility model relates to the field of automotive equipment testing technology, and in particular to an automotive ignition coil life testing device. Background Technology

[0002] With the rapid development of the automotive industry and the continuous increase in car ownership, vehicle safety and reliability have received increasing attention. As a core component of the automotive ignition system, the performance of the ignition coil directly affects the engine's ignition efficiency, power output, and fuel economy. Therefore, accurately assessing the lifespan of the ignition coil is crucial for ensuring stable vehicle operation and improving user experience, making the development of a reliable automotive ignition coil lifespan testing device an urgent industry need.

[0003] The ignition coil is a key component of a car's ignition system, primarily responsible for converting the low voltage supplied by the vehicle's battery into a high voltage to generate a spark that ignites the fuel mixture in the engine cylinders. The ignition coil operates on the principle of electromagnetic induction. When the ignition switch is closed, current flows through the primary coil. As the current increases, a strong magnetic field is generated around the primary coil, and the iron core stores this magnetic energy. When the switch disconnects the primary coil circuit, the magnetic field in the primary coil decays rapidly, inducing a high voltage in the secondary coil. This high voltage is delivered to the spark plug, generating an electric spark that ignites the combustible mixture in the cylinders.

[0004] In existing technologies, some testing devices do not test the ignition coil and spark plug together, but only test the ignition coil in isolation. This testing method makes it impossible to accurately determine whether the high voltage converted by the ignition coil is sufficient to successfully ignite the spark plug, and it is difficult to simulate the working state of the ignition coil under real working conditions. This results in significant limitations in the experimental results and cannot be used for quality inspection of the ignition coil. Therefore, an automotive ignition coil life testing device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automotive ignition coil life testing device, which aims to improve the problem that some existing testing devices are difficult to perform quality testing on ignition coils during the testing process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automotive ignition coil life testing device includes a housing, a fixed partition is fixedly connected inside the housing, an energizing mechanism is fixedly connected to one side of the fixed partition, and a replacement connection mechanism is provided on the outside of the fixed partition.

[0008] The energizing mechanism includes an L-shaped connecting plate, which is fixedly connected to the outside of the fixed partition. A round rod is fixedly connected to the top of the L-shaped connecting plate, and a conductive plate is slidably connected to the outside of the round rod. A return spring is sleeved on the outside of the round rod, and the bottom of the return spring is fixedly connected to the top of the L-shaped connecting plate. The top of the return spring is fixedly connected to the bottom of the conductive plate. A drive assembly that provides rotational force is fixedly connected inside the L-shaped connecting plate. A power supply assembly is fixedly connected inside the housing, and a connecting assembly is fixedly connected inside the fixed partition.

[0009] As a further description of the above technical solution:

[0010] The replacement connection mechanism includes a fixing block, which is externally fixedly connected to the outer side of the fixing partition. A guide rod is internally fixedly connected to the fixing block, and a slide plate is slidably connected to the outside of the guide rod. A spring is sleeved on the outside of the guide rod, with the top of the spring fixedly connected to the bottom of the slide plate and the bottom of the spring fixedly connected to the outside of the fixing block. A long plate is externally fixedly connected to the outside of the slide plate and slidably connected to the inside of the housing. A connector is internally fixedly connected to the inside of the slide plate, and a limit assembly is rotatably connected to the inside of the long plate.

[0011] As a further description of the above technical solution:

[0012] The drive assembly includes a drive motor, the drive motor is externally fixedly connected to the inside of the L-shaped connecting plate, and an insulated elliptical wheel is fixedly connected to the drive end of the drive motor. The outside of the insulated elliptical wheel is in contact with the top of the conductive plate.

[0013] As a further description of the above technical solution:

[0014] The power supply assembly includes a battery, the bottom of which is fixedly connected to the bottom of the housing, and the top of which is provided with a positive power terminal and a negative power terminal.

[0015] As a further description of the above technical solution:

[0016] The connecting assembly includes a connecting wire, the outside of which is fixedly connected to the inside of the fixed partition. A first wire is fixedly connected to the inside of the fixed partition. A fixed frame is fixedly connected to the outside of the battery. A second wire is fixedly connected to the inside of the fixed frame. One end of the second wire is fixedly connected to the inside of the negative terminal of the power supply. The conductive plate is slidably connected to the other end surface of the second wire and the outer surface of the first wire.

[0017] As a further description of the above technical solution:

[0018] The limiting assembly includes a rotating plate, the outside of which is rotatably connected to the inside of the long plate, a limiting rod is fixedly connected to the outside of the box, and the inside of the rotating plate is slidably connected to the outer surface of the limiting rod.

[0019] As a further description of the above technical solution:

[0020] A connecting pipe is fixedly connected to the top of the connector, a support is fixedly connected to the top of the housing, a spark plug is fixedly connected inside the support, and the top of the connecting pipe is fixedly connected to the inside of the spark plug.

[0021] As a further description of the above technical solution:

[0022] The housing is slidably connected to a sliding seat, and the top of the sliding seat is used to place the coil body.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the insulated elliptical wheel is driven by a drive motor to rotate, which pushes the conductive plate to move up and down on the round rod. The conductive plate slides on the surfaces of the second and first wires to achieve circuit connection, so that the battery's electrical energy forms a circuit, simulating the car ignition process. The coil body converts the high-voltage current and transmits it to the spark plug to generate an electric spark, realizing the combined testing of the ignition coil and spark plug, and enabling the quality detection of the ignition coil.

[0025] 2. In this utility model, by rotating the rotating plate to break free from the limit rod, the sliding plate, the long plate and the connector are moved under the action of the spring restoring force, so that the old coil can slide out, the new coil can be replaced and relocked. This makes it convenient and quick to replace the coil body without complicated tools and cumbersome operations, reducing test interruption time, improving test efficiency, and ensuring the stability and reliability of the connection after replacement, so as to ensure that the test can be carried out continuously and accurately. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an automotive ignition coil life testing device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the fixed partition of the automotive ignition coil life testing device proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the rotating plate of an automotive ignition coil life testing device proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. Housing; 2. Fixed partition; 3. L-shaped connecting plate; 4. Round rod; 5. Conductive plate; 6. Return spring; 7. Drive motor; 8. Insulated elliptical wheel; 9. Battery; 10. Positive power supply terminal; 11. Negative power supply terminal; 12. Connecting wire; 13. Wire one; 14. Fixing frame; 15. Wire two; 16. Fixing block; 17. Guide rod; 18. Slide plate; 19. Long plate; 20. Connector; 21. Rotating plate; 22. Limiting rod; 23. Connecting pipe; 24. Support; 25. Spark plug; 26. Sliding seat; 27. Coil body; 28. Spring one. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0034] Reference Figures 1 to 3 An embodiment of this utility model is provided: an automotive ignition coil life test device, including a housing 1. The housing 1 serves to protect the internal structure and provide an installation base. A fixed partition 2 is fixedly connected inside the housing 1. The fixed partition 2 divides the internal space of the housing 1 into two areas. An energizing mechanism is fixedly connected to one side of the fixed partition 2. A replacement connection mechanism is provided on the outside of the fixed partition 2.

[0035] The energizing mechanism includes an L-shaped connecting plate 3, which serves as the basic connecting component of the energizing mechanism and also provides a mounting base for the drive assembly. The L-shaped connecting plate 3 is externally fixedly connected to the outer side of the fixed partition 2. A round rod 4 is fixedly connected to the top of the L-shaped connecting plate 3, which provides a stable sliding guide for the conductive plate 5. The conductive plate 5 is slidably connected to the outside of the round rod 4, and can slide on the round rod 4, playing a key conductive role in the energizing mechanism. A return spring 6 is sleeved on the outside of the round rod 4, which provides an upward elastic force for the conductive plate 5. The bottom of the return spring 6 is fixedly connected to the top of the L-shaped connecting plate 3, and the top of the return spring 6 is fixedly connected to the bottom of the conductive plate 5. A drive assembly that provides rotational force is fixedly connected inside the L-shaped connecting plate 3. A power supply assembly is fixedly connected inside the housing 1, and a connecting assembly is fixedly connected inside the fixed partition 2.

[0036] The drive assembly includes a drive motor 7, which drives an insulated elliptical wheel 8 to rotate. The drive motor 7 is externally fixedly connected to the inside of an L-shaped connecting plate 3. The drive end of the drive motor 7 is fixedly connected to the insulated elliptical wheel 8. During rotation, the insulated elliptical wheel 8 contacts the top of the conductive plate 5 and pushes the conductive plate 5 to reciprocate up and down. The outside of the insulated elliptical wheel 8 contacts the top of the conductive plate 5. The power supply assembly includes a battery 9, which provides electrical energy to the device and has sufficient power reserves to meet the needs of long-term operation of the test device. The bottom of the battery 9 is fixedly connected to the bottom side of the inside of the housing 1. The top of the battery 9 is provided with a positive power terminal 10 and a negative power terminal 11, which are the power output terminals of the battery 9 to the outside. The power output interface and connection components include a connecting wire 12, which is used to connect the positive terminal 10 of the power supply and the coil to be tested. The external part of the connecting wire 12 is fixedly connected to the inside of the fixed partition 2. The inside of the fixed partition 2 is a wire 13, which is used to connect to the coil to be tested. The external part of the battery 9 is fixedly connected to a fixing frame 14, which is used to provide a fixed base for the second wire 15. The inside of the fixing frame 14 is fixedly connected to the second wire 15. The first wire 13 and the second wire 15 can be connected through a conductive plate 5. One end of the second wire 15 is fixedly connected to the inside of the negative terminal 11 of the power supply. The external part of the conductive plate 5 is slidably connected to the other end surface of the second wire 15 and the external surface of the first wire 13.

[0037] Reference Figure 4 and Figure 5 The replacement connection mechanism includes a fixing block 16, which provides a base for installing and fixing the guide rod 17. The fixing block 16 is externally fixedly connected to the outer side of the fixing partition 2. The guide rod 17 is internally fixedly connected to the fixing block 16. The guide rod 17 provides precise guidance for the sliding of the slide plate 18, enabling the slide plate 18 to move smoothly along a predetermined direction. The slide plate 18 is externally slidably connected to the guide rod 17, allowing the slide plate 18 to slide smoothly on the guide rod 17, thereby driving the connector 20 to adjust its position. A spring 28 is provided, which can provide restoring force to reset the slide plate 18. The top of the spring 28 is fixedly connected to the bottom of the slide plate 18, and the bottom of the spring 28 is fixedly connected to the outside of the fixing block 16. A long plate 19 is fixedly connected to the outside of the slide plate 18. The long plate 19 is used to drive the slide plate 18 to slide. The outside of the long plate 19 is slidably connected to the inside of the housing 1. A connector 20 is fixedly connected inside the slide plate 18. The connector 20 is used to connect to the coil to be tested. A limit component is rotatably connected inside the long plate 19.

[0038] The limiting assembly includes a rotating plate 21, which cooperates with a limiting rod 22 to restrict the movement of the long plate 19 and the slide plate 18. The external part of the rotating plate 21 is rotatably connected to the inside of the long plate 19, and the external part of the housing 1 is fixedly connected to the limiting rod 22. The limiting rod 22 is used to limit the position of the rotating plate 21, thereby locking the position of the slide plate 18. The internal part of the rotating plate 21 is slidably connected to the external surface of the limiting rod 22.

[0039] Reference Figure 1 and Figure 4 A connecting tube 23 is fixedly connected to the top of the connector 20. The connecting tube 23 is used to connect the connector 20 and the spark plug 25, so as to realize the transmission of electrical energy from the connector 20 to the spark plug 25. A support 24 is fixedly connected to the top of the housing 1. The support 24 is used to support and fix the spark plug 25 to ensure the stability of the spark plug 25 during operation. The spark plug 25 is fixedly connected inside the support 24. The spark plug 25 is used to simulate the ignition process of a car in this test device. It is connected to the connector 20 through the connecting tube 23, receives electrical energy and generates an electric spark. The top of the connecting tube 23 is fixedly connected to the inside of the spark plug 25. A sliding seat 26 is slidably connected inside the housing 1. The sliding seat 26 provides a stable placement position for the coil body 27 and facilitates replacement during the test. The top of the sliding seat 26 is used to place the coil body 27.

[0040] Working principle: When the drive motor 7 starts, it drives the insulated elliptical wheel 8 to rotate. During the rotation, the insulated elliptical wheel 8 contacts the top of the conductive plate 5 and pushes the conductive plate 5. The conductive plate 5 overcomes the elastic force of the return spring 6 and moves up and down. At the same time, the return spring 6 repeatedly extends and retracts. When the conductive plate 5 moves upward, it slides on the surface of the second wire 15 and the first wire 13 to realize the circuit connection. At this time, the positive terminal 10 of the power supply of the battery 9 is connected to the second wire 15 through the connecting wire 12 and the first wire 13, and the current flows out from the negative terminal 11 of the power supply to form a circuit, so that the coil body 27 can convert into high voltage current. The high voltage current is transmitted to the spark plug 25 through the connector 20 and the connecting tube 23. The spark plug 25 generates an electric spark, simulating the car ignition process, thereby determining the service life of the coil body 27.

[0041] When the coil body 27 needs to be replaced, rotate the rotating plate 21 to disengage it from the limit rod 22. Under the restoring force of the spring 28, the slide plate 18 moves the long plate 19 and the connector 20. After the connector 20 is removed from the top of the coil body 27, slide the old coil body 27 out of the box 1 through the sliding seat 26. After pushing the new coil body 27 into the box 1, push the long plate 19 to make the rotating plate 21 re-lock into the limit rod 22, lock the position of the slide plate 18, restore the connection state of the device and continue the test.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for testing the life of an automotive ignition coil, comprising a housing (1), characterized in that: The box (1) is fixedly connected to a fixed partition (2) inside, and a power supply mechanism is fixedly connected to one side of the fixed partition (2) outside. A replacement connection mechanism is provided on the outside of the fixed partition (2). The power supply mechanism includes an L-shaped connecting plate (3), which is fixedly connected to the outside of the fixed partition (2). A round rod (4) is fixedly connected to the top of the L-shaped connecting plate (3). A conductive plate (5) is slidably connected to the outside of the round rod (4). A return spring (6) is sleeved on the outside of the round rod (4). The bottom of the return spring (6) is fixedly connected to the top of the L-shaped connecting plate (3). The top of the return spring (6) is fixedly connected to the bottom of the conductive plate (5). A drive assembly that provides rotational force is fixedly connected inside the L-shaped connecting plate (3). A power supply assembly is fixedly connected inside the housing (1). A connection assembly is fixedly connected inside the fixed partition (2).

2. The automotive ignition coil life testing device according to claim 1, characterized in that: The replacement connection mechanism includes a fixing block (16), which is externally fixedly connected to the outside of the fixing partition (2). A guide rod (17) is fixedly connected inside the fixing block (16). A slide plate (18) is slidably connected to the outside of the guide rod (17). A spring (28) is sleeved on the outside of the guide rod (17). The top of the spring (28) is fixedly connected to the bottom of the slide plate (18). The bottom of the spring (28) is fixedly connected to the outside of the fixing block (16). A long plate (19) is fixedly connected to the outside of the slide plate (18). The long plate (19) is slidably connected to the inside of the housing (1). A connector (20) is fixedly connected inside the slide plate (18). A limit assembly is rotatably connected inside the long plate (19).

3. The automotive ignition coil life testing device according to claim 1, characterized in that: The drive assembly includes a drive motor (7), the outside of which is fixedly connected to the inside of the L-shaped connecting plate (3), and the drive end of the drive motor (7) is fixedly connected to an insulated elliptical wheel (8), the outside of which is in contact with the top of the conductive plate (5).

4. The automotive ignition coil life testing device according to claim 1, characterized in that: The power supply assembly includes a battery (9), the bottom of which is fixedly connected to the bottom side of the inside of the housing (1), and the top of the battery (9) is provided with a positive power terminal (10) and a negative power terminal (11).

5. The automotive ignition coil life testing device according to claim 4, characterized in that: The connecting assembly includes a connecting wire (12), the outside of which is fixedly connected to the inside of the fixed partition (2). The inside of the fixed partition (2) is a wire one (13). The outside of the battery (9) is fixedly connected to a fixing frame (14). The inside of the fixing frame (14) is fixedly connected to a wire two (15). One end of the outside of the wire two (15) is fixedly connected to the inside of the negative terminal of the power supply (11). The outside of the conductive plate (5) is slidably connected to the other end surface of the wire two (15) and the outer surface of the wire one (13).

6. The automotive ignition coil life testing device according to claim 2, characterized in that: The limiting assembly includes a rotating plate (21), which is rotatably connected to the outside of the long plate (19). A limiting rod (22) is fixedly connected to the outside of the box (1), and the inside of the rotating plate (21) is slidably connected to the outer surface of the limiting rod (22).

7. The automotive ignition coil life testing device according to claim 2, characterized in that: A connecting pipe (23) is fixedly connected to the top of the connector (20), a support (24) is fixedly connected to the top of the housing (1), a spark plug (25) is fixedly connected inside the support (24), and the top of the connecting pipe (23) is fixedly connected to the inside of the spark plug (25).

8. The automotive ignition coil life testing device according to claim 1, characterized in that: The housing (1) is slidably connected to a sliding seat (26), and the top of the sliding seat (26) is used to place the coil body (27).

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