Pen type ignition coil

Abstract

The invention relates to a pen type ignition coil which comprises an outer shell, a primary framework, a secondary framework, a connector, a diode and a circuit board. An installation flat plate is arranged at the end, connected with the outer shell, of the connector, and a terminal integrated sheet is arranged in the installation flat plate; the terminal integration sheet is provided with a welding end extending out of the upper surface of the mounting flat plate and a connecting plug extending out of the lower surface of the mounting flat plate, the welding end is connected with the circuit board, and the connecting plug is in plug-in fit with a plug-in end on the secondary framework. And the structural design of the connecting plug and the mounting flat plate is convenient for automatic equipment operation, the dependence on manual welding is reduced, the whole assembly process is easier to realize automatic flow line production, the production efficiency is greatly improved, and the labor cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pencil-type ignition coils, and in particular to a pencil-type ignition coil. Background Art

[0002] In the traditional manufacturing technology of pencil ignition coils, the electrical connection between components mostly relies on manual welding. This process requires a high degree of skill and precision, especially when dealing with delicate parts such as primary bobbins, secondary bobbins, and diodes. The welding process is not only limited by the small working space, but also easily leads to uneven welding quality due to the inconsistency of manual operation, such as cold solder joints, short circuits, or looseness, which directly affects the performance stability and service life of the pencil ignition coil.

[0003] In addition, the high temperature generated during welding may cause thermal damage to the surrounding plastic or insulation materials, increasing the potential failure rate of the product. Moreover, since welding operations are difficult to automate, especially in the design of modern pencil ignition coils with miniaturized and high-density layouts, production efficiency is low and labor costs are high, which seriously restricts the economy and efficiency of large-scale production.

[0004] In view of the above problems, the traditional pencil ignition coil manufacturing process urgently needs a new connection technology to replace traditional welding to solve the problems of low production efficiency, high cost and unstable product quality. Summary of the invention

[0005] In view of the deficiencies in the background technology, the present invention provides a pencil-type ignition coil.

[0006] The technical solution adopted by the present invention is: a pencil-type ignition coil, including an outer shell, a primary frame, a secondary frame, a connector, a diode and a circuit board, a mounting plate is provided on one end of the connector connected to the outer shell, a terminal integrated sheet is provided in the mounting plate, the terminal integrated sheet has a welding end extending out of the upper surface of the mounting plate and a plug connector extending out of the lower surface of the mounting plate, the welding end is connected to the circuit board, and the plug connector is plugged into and matched with the plug end on the secondary frame.

[0007] Furthermore, three sockets are provided on the plug-in end, winding baffles are provided at both ends of the plug-in end, and winding grooves are provided below the winding baffles.

[0008] Furthermore, the plug connector is provided with three pins for plugging and matching with the three sockets, and slots are formed between the pins.

[0009] Furthermore, the pins on both sides of the slot are provided with guiding inclined surfaces, an arc-shaped notch is provided above the guiding inclined surfaces, and a tightening step is provided above the arc-shaped notch.

[0010] Furthermore, a first wire groove is provided on the plug-in end, and slots are formed on two sides of the first wire groove.

[0011] Furthermore, the plug connector is provided with two connecting pins for plugging and matching with the above-mentioned slots.

[0012] Furthermore, a tube groove for embedding diodes is integrally formed on one side of the primary frame, a wire outlet groove is provided on one side of the tube groove, and a second wire groove docking with the first wire groove is provided on the other side.

[0013] Furthermore, a positioning boss is integrally formed on one side of the primary frame, and a positioning groove for the positioning boss to be snapped into is provided on the secondary frame.

[0014] Furthermore, first engaging grooves are provided on both sides of the opening through which the outer shell is connected to the connecting head, and second engaging grooves engaging with the above-mentioned engaging grooves are provided on both sides of the connecting head.

[0015] Furthermore, the terminal integrated sheet is also integrally formed with a plug-in terminal extending into the connection port of the connector.

[0016] The plug-in connection scheme adopted by the present invention significantly improves the production efficiency and product quality of the pencil-type ignition coil compared to the traditional welding connection technology. The specific beneficial effects are as follows: 1. Improve the degree of automation: The structural design of the plug connector and the mounting plate facilitates the operation of automated equipment, reduces the reliance on manual welding, and makes the entire assembly process easier to achieve automated assembly line production, greatly improving production efficiency and reducing labor costs.

[0017] 2. Enhanced connection stability: The plug-in matching method ensures the stability and reliability of the electrical connection between the primary frame, secondary frame, diode and connector, reduces problems such as poor contact, increased resistance or short circuit caused by uneven welding quality, and extends the service life of the pencil ignition coil.

[0018] 3. Simplify the assembly process: The pre-integrated terminal block and standardized plug-in structure simplify the assembly steps, reduce the assembly time, and facilitate the maintenance and replacement of parts, thereby improving the overall assembly convenience and facilitating automated assembly production.

[0019] 4. Reduce production costs: Automated assembly reduces manual intervention and reduces the scrap rate caused by human errors. At the same time, plug-in technology avoids the consumption of consumables (such as solder, protective gas, etc.) during the welding process, effectively controlling production costs.

[0020] 5. Improve product consistency: The electrical connection between the primary frame, secondary frame, diode and connector adopts the plug-in connection structure to ensure the uniformity of the connection quality of each product, improve the consistency of product performance and overall quality, and enhance market competitiveness.

[0021] 6. Environmentally friendly: It reduces the emission of smoke and harmful gases generated by welding, conforms to the trend of green and environmental protection in modern manufacturing industry, improves the production environment and is conducive to sustainable development.

[0022] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the explosion of the present invention.

[0026] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0027] Figure 4 for Figure 2 Enlarged schematic diagram of point B in the middle.

[0028] Figure 5 This is a wiring diagram.

[0029] Figure 6 This is a schematic diagram of the terminal integrated circuit.

[0030] Figure 7 It is a side view schematic diagram of the terminal integrated chip.

[0031] Figure 8 A schematic diagram of the connector.

[0032] Figure 1-8 In: 1. outer shell; 2. primary frame; 3. secondary frame; 4. connector; 5. diode; 6. circuit board; 7. mounting plate; 8. terminal integrated sheet; 9. welding end; 10. plug connector; 11. plug end; 12. socket; 13. winding stop bar; 14. winding groove; 15. plug pin; 16. slot; 17. guide slope; 18. arc-shaped notch; 19. tightening step; 20. first wire groove; 21. slot; 22. connecting pin; 23. tube groove; 24. wire outlet groove; 25. second wire groove; 26. positioning boss; 27. positioning groove; 28. first fitting groove; 29. ​​second fitting groove; 30. connector; 31. plug terminal; 32. winding. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] The invention provides a pencil-type ignition coil.

[0036] In this embodiment, refer to Figure 1-8 The pencil-type ignition coil comprises an outer shell 1, a primary frame 2, a secondary frame 3, a connector 4, a diode 5 and a circuit board 6. A mounting plate 7 is provided on one end of the connector connected to the outer shell. A terminal integrated sheet 8 is provided in the mounting plate. The terminal integrated sheet has a welding end 9 extending from the upper surface of the mounting plate and a plug connector 10 extending from the lower surface of the mounting plate. The welding end is connected to the circuit board, and the plug connector is plugged into and matched with a plug terminal 11 on the secondary frame.

[0037] The present invention realizes direct welding connection between the welding end and the circuit board and plug-in cooperation between the plug connector and the secondary skeleton by arranging a mounting plate and a terminal integrated sheet at the connecting end of the connector and the outer shell, which not only simplifies the assembly process and improves the level of production automation, but also enhances the reliability and stability of the electrical connection, which is beneficial to improving the overall performance and life of the pencil-type ignition coil.

[0038] Examples of positive and negative plug connectors and plug terminals: Specifically, three sockets 12 are provided on the plug-in end, and winding baffles 13 are provided at both ends of the plug-in end, and winding grooves 14 are provided below the winding baffles.

[0039] The positive and negative plug-in terminals are provided with three sockets, and winding bars and winding grooves are provided at both ends of the plug-in terminals. Therefore, when winding the wire, the coil can be wound around the winding bars and winding grooves on one side of the plug-in terminal, and at the same time, it can be wound back from the winding bars and winding grooves on the other side of the plug-in terminal, so that two windings that are electrically connected to the plug connector are formed between the three sockets (such as Figure 5 As shown), it ensures good electrical contact and improves the manufacturing accuracy and working efficiency of the pencil-type ignition coil.

[0040] Specifically, the plug connector is provided with three pins 15 for plugging and matching with the three sockets, and slots 16 are formed between the pins.

[0041] The triple-pin design of the plug connector and the plug end can be well connected to the winding on the socket, ensuring a stable physical connection and reliable electrical conduction. The design of the guide bevel and arc-shaped notch further simplifies the assembly process and improves the accuracy and speed of assembly.

[0042] Specifically, the pins on both sides of the slot are provided with guiding inclined surfaces 17, an arc-shaped notch 18 is provided above the guiding inclined surfaces, and a tightening step 19 is provided above the arc-shaped notch.

[0043] The setting of the guide slope and tightening step optimizes the plug-in process, making the plug-in smoother and more stable, avoiding the risk of misalignment and looseness, and enhancing the stability and durability of the pencil-type ignition coil in long-term use.

[0044] Embodiments of the plug connector and the plug end at the electrode tube connection end: Specifically, the plug end is provided with a first wire groove 20, and two sides of the first wire groove form slots 21; the plug connector is provided with two connecting pins 22 for plugging and matching with the above slots.

[0045] After adopting the above technical solution, the precise matching of the two connecting pins and the slot ensures the correct guidance and fixation of the secondary coil wire, simplifies the assembly complexity, and improves the compactness and reliability of the internal structure of the pencil-type ignition coil.

[0046] Specifically, a tube groove 23 for embedding diodes is integrally formed on one side of the primary frame, a wire outlet groove 24 is provided on one side of the tube groove, and a second wire groove 25 docking with the first wire groove is provided on the other side.

[0047] After adopting the above technical solutions, the integrated tube trough and wire trough design provides an integrated solution for the embedding and cable arrangement of the diode, simplifies the installation steps of the diode, optimizes the circuit layout, and is conducive to maintaining and improving the reliability of the electrical connection.

[0048] Specifically, a positioning boss 26 is integrally formed on one side of the primary frame, and a positioning groove 27 for the positioning boss to be snapped into is provided on the secondary frame.

[0049] The positioning boss and groove design between the primary frame and the secondary frame ensures precise positioning and a firm connection between the two, simplifies the assembly process, and improves the overall mechanical strength of the pencil-type ignition coil and the stability of its electrical performance.

[0050] Specifically, first engaging grooves 28 are provided on both sides of the opening through which the outer shell is connected to the connector, and second engaging grooves 29 for engaging with the above-mentioned engaging grooves are provided on both sides of the connector.

[0051] The matching design of the first fitting groove and the second fitting groove simplifies the assembly process of the connector and the outer shell, facilitates automated assembly, and ensures a tight connection between the two, thereby improving the sealing of the pencil-type ignition coil and the firmness of the overall structure.

[0052] Specifically, the terminal integrated sheet is also integrally formed with a plug-in terminal 31 extending into the connection port 30 of the connector.

[0053] The integrated plug-in terminals on the terminal integration chip simplify the electrical connection between the circuit board and the connector, improve the reliability and durability of the connection, facilitate automated assembly, reduce the complexity of external wiring, and improve the overall manufacturing efficiency and product consistency.

[0054] Technical personnel should note that: Although the present invention has been described according to the above specific implementation methods, the concept of the present invention is not limited to this invention, and any modification using the concept of the present invention will be included in the scope of protection of this patent right.

Claims

1. A pencil-type ignition coil, comprising an outer shell, a primary frame, a secondary frame, a connector, a diode and a circuit board, characterized in that: A mounting plate is provided on one end of the connector connected to the outer shell, a terminal integrated sheet is provided inside the mounting plate, the terminal integrated sheet has a welding end extending out of the upper surface of the mounting plate and a plug connector extending out of the lower surface of the mounting plate, the welding end is connected to the circuit board, and the plug connector is plugged in with the plug end on the secondary frame.

2. The pencil-type ignition coil according to claim 1, characterized in that: The plug-in end is provided with three sockets, and both ends of the plug-in end are provided with winding baffles, and a winding groove is provided below the winding baffles.

3. The pencil-type ignition coil according to claim 2, characterized in that: The plug connector is provided with three plug pins for plugging and matching with the three sockets, and slots are formed between the plug pins.

4. The pencil-type ignition coil according to claim 3, characterized in that: The pins on both sides of the slot are provided with guiding inclined surfaces, an arc-shaped notch is provided above the guiding inclined surfaces, and a tightening step is provided above the arc-shaped notch.

5. The pencil-type ignition coil according to claim 1, characterized in that: The plug-in end is provided with a first wire groove, and two sides of the first wire groove form slots.

6. The pencil-type ignition coil according to claim 5, characterized in that: The plug connector is provided with two connecting pins which are plugged and matched with the above-mentioned slots.

7. The pencil-type ignition coil according to claim 1, characterized in that: A tube groove for embedding diodes is integrally formed on one side of the primary frame. A wire outlet groove is provided on one side of the tube groove, and a second wire groove docking with the first wire groove is provided on the other side.

8. The pencil-type ignition coil according to claim 1, characterized in that: A positioning boss is integrally formed on one side of the primary frame, and a positioning groove for the positioning boss to be snapped into is provided on the secondary frame.

9. The pencil-type ignition coil according to claim 1, characterized in that: First engaging grooves are arranged on both sides of the opening through which the outer shell is connected to the connecting head, and second engaging grooves engaging with the above-mentioned engaging grooves are arranged on both sides of the connecting head.

10. The pencil-type ignition coil according to claim 1, characterized in that: The terminal integrated sheet is also integrally formed with a plug-in terminal that extends into the connection port of the connector.

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