Electric injection ignition coil for waterproof structure engine of motorcycle

Abstract

The utility model provides an electric injection ignition coil for a motorcycle waterproof structure engine, which comprises a waterproof connector assembly, an iron core and a primary framework, the primary framework is fixed on the iron core, a primary coil is wound on the primary framework, the primary framework and the waterproof connector assembly are sleeved together through a buckle, and the waterproof connector assembly is fixed on the iron core. Primary wire inlet and outlet inserting pieces are oppositely arranged at the upper end of the primary framework, the head end and the tail end of the primary coil are welded to positive and negative electrode inserting pieces of the waterproof connector assembly through the primary wire inlet and outlet inserting pieces, the primary framework is sleeved with a secondary framework, and a secondary coil is wound on the secondary framework. The upper end of the secondary framework is connected with a secondary wire inlet insertion piece which is welded with the primary wire inlet insertion piece after being bent, the secondary framework is arranged in the shell, the space between the framework coil and the shell is filled with a potting material in a sealed mode, a high-voltage connecting hole is formed in the lower end of the shell, and a high-voltage screw penetrating through the high-voltage screw connecting piece is inserted into the high-voltage connecting hole. The waterproof connector can be quickly welded and combined with the primary insertion piece, and the primary insertion piece and the secondary wire inlet insertion piece.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition coils, in particular to an electronic injection ignition coil for a motorcycle engine with a waterproof structure. Background Art

[0002] The ignition coil is a key component of the engine's ignition system, providing sufficient energy to the spark plugs to generate a sufficient spark, thereby improving engine performance. The ignition coil primarily consists of a primary coil, a secondary coil, and an iron core. The ignition coil's operating principle is as follows: when the primary coil is connected to power, the current increases, generating a strong magnetic field around it, and the iron core stores the magnetic field energy. When the switch disconnects the primary coil circuit, the primary coil's magnetic field rapidly decays, inducing a high voltage in the secondary coil. The faster the primary coil's magnetic field disappears, the greater the current at the moment of disconnection, and the larger the turns ratio between the two coils, the higher the voltage induced in the secondary coil. This is how the voltage is converted from low to high.

[0003] Currently, the primary coils of ignition coils used in motorcycle engines mostly utilize a docking connection between the incoming and outgoing wires, without a dedicated waterproof docking method. Even where such a connection is available, it is usually achieved by embedding low-voltage leads or welding and heat shrinking. The inventors of this application have discovered through research that the docking connection design cannot directly achieve waterproofing; the embedded low-voltage lead method is complex and requires additional low-voltage lead transfer, resulting in low reliability; and the welding and heat shrinking method can cause a short circuit between the power supply and ground due to the water curtain effect when the ignition coil is subjected to a water test or when the motorcycle is ridden in heavy rain, which can cause the ignition to misfire or stall, rendering the motorcycle inoperable. Utility Model Content

[0004] In view of the technical problems existing in the existing primary coil waterproofing methods, the utility model provides an electronic injection ignition coil for a motorcycle engine with a waterproof structure. By adopting an embedded snap-in integrated waterproof structure, the connection is simple and fast, which completely solves the waterproofing problem of the primary coil.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A waterproof structure electronic injection ignition coil for a motorcycle engine, comprising a waterproof connector assembly, an iron core, a primary skeleton, a primary coil, a secondary skeleton, a secondary coil, a primary incoming wire plug-in, a primary outgoing wire plug-in, a secondary incoming wire plug-in, an outer shell, a high-voltage screw connecting piece, a high-voltage screw and a potting material. The waterproof connector assembly comprises a waterproof plug shell, a waterproof sealing ring, a waterproof plug positive plug-in and a waterproof plug negative plug-in. The primary skeleton is injection-molded and fixed on the iron core. The primary coil is wound on the primary skeleton. The primary skeleton and the waterproof plug shell are connected together by a snap-fit ​​sleeve. The waterproof sealing ring is arranged in the waterproof plug shell. The waterproof plug positive plug-in and the waterproof plug negative plug-in are connected to the waterproof plug shell. The upper end of the primary skeleton is embedded with the relatively configured primary incoming wire plug-in and primary outgoing wire plug-in. The head end and tail end of the primary coil are respectively welded to one end of the primary incoming wire plug-in and the primary outgoing wire plug-in. The waterproof plug positive plug-in is connected to the primary The other end of the outlet plug is welded and connected, the negative plug of the waterproof plug is welded and connected to the other end of the primary incoming plug, the secondary frame is fixedly sleeved on the primary frame, the secondary coil is wound on the secondary frame, the secondary incoming plug is connected to the upper end of the secondary frame, the bent upper end of the secondary incoming plug is welded to the primary incoming plug, the secondary frame is arranged in the shell, the iron core, primary frame, primary coil, secondary frame, the secondary coil and the shell are sealed and filled with potting material, a high-voltage pad is integrally formed at the lower end of the secondary frame, the high-voltage pad is provided with a screw hole, and a high-voltage connection hole is integrally formed at the lower end of the shell below the high-voltage pad, the high-voltage screw connecting piece is arranged on the screw hole of the high-voltage pad, the high-voltage output end of the high-voltage screw passes through the high-voltage screw connecting piece and the screw hole of the high-voltage pad and is inserted into the high-voltage connection hole, the head end of the secondary coil is sleeved with the secondary incoming plug, and the tail end is sleeved with the high-voltage screw connecting piece.

[0007] Compared with the prior art, the electronic injection ignition coil for a motorcycle engine with a waterproof structure provided by the utility model is configured such that a primary incoming wire plug and a primary outgoing wire plug that are relatively arranged are embedded and connected at the upper end of the primary frame, and then the positive electrode plug of the waterproof plug on the waterproof plug shell is welded to the primary outgoing wire plug, the negative electrode plug of the waterproof plug is welded to the primary incoming wire plug, and the primary incoming wire plug is welded to the secondary incoming wire plug. In this way, the primary coil and the frame can be quickly and stably connected to the waterproof connector to form an integral body. The process is simple and the connection is quick. While improving the production efficiency of the integrated waterproof structure ignition coil, the problem of misfire or flameout of the primary coil caused by water accumulation, water splashing or rain is completely solved.

[0008] Furthermore, an opening is provided at the upper end of the primary frame, and the primary incoming wire plug-in and the primary outgoing wire plug-in are embedded in the opening at the upper end of the primary frame.

[0009] Furthermore, a bayonet is provided at the upper end of the secondary frame, and the secondary incoming line plug is snapped into the bayonet connected to the upper end of the secondary frame.

[0010] Furthermore, the potting material is epoxy resin filler. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model provides a schematic cross-sectional view of an electronic injection ignition coil for a motorcycle waterproof engine.

[0012] Figure 2 The utility model is a schematic diagram of a top view of the structure of an electronic injection ignition coil for a motorcycle waterproof structure engine.

[0013] Figure 3 The utility model is a first side structural schematic diagram of an electronic injection ignition coil for a motorcycle waterproof structure engine with part of the structure omitted.

[0014] Figure 4 This is a second side structural schematic diagram of the waterproof structure electronic injection ignition coil for motorcycle engine provided by the utility model with part of the structure omitted.

[0015] Figure 5 This is a third side structural schematic diagram of the electronic injection ignition coil for a motorcycle waterproof structure engine provided by the utility model with part of the structure omitted.

[0016] In the figure, 1. Waterproof connector assembly; 101. Waterproof plug shell; 102. Waterproof sealing ring; 103. Positive electrode plug of waterproof plug; 104. Negative electrode plug of waterproof plug; 2. Iron core; 3. Primary skeleton; 4. Primary coil; 5. Secondary skeleton; 6. Secondary coil; 7. Primary incoming wire plug; 8. Primary outgoing wire plug; 9. Secondary incoming wire plug; 10. Housing; 11. High-voltage screw connecting piece; 12. High-voltage screw; 13. Potting material; 14. High-voltage spacer. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0018] In the description of the present invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] Please refer to Figures 1 to 5As shown, the utility model provides an electronic injection ignition coil for a motorcycle waterproof structure engine, comprising a waterproof connector assembly 1, an iron core 2, a primary skeleton 3, a primary coil 4, a secondary skeleton 5, a secondary coil 6, a primary incoming line plug 7, a primary outgoing line plug 8, a secondary incoming line plug 9, a shell 10, a high-voltage screw connecting piece 11, a high-voltage screw 12 and a potting material 13. The waterproof connector assembly 1 includes a waterproof plug shell 101, a waterproof sealing ring 102, a waterproof plug positive plug 103 and a waterproof plug negative plug 104. The primary skeleton 3 is injection-molded and fixed on the iron core 2, and the primary coil 4 is wound on the primary skeleton 3. The primary skeleton 3 is connected to the waterproof plug shell 101 by a snap-fit ​​sleeve, the waterproof sealing ring 102 is arranged in the waterproof plug shell 101, the waterproof plug positive plug 103 and the waterproof plug negative plug 104 are connected to the waterproof plug shell 101, the upper end of the primary skeleton 3 is embedded with the relatively configured primary incoming line plug 7 and the primary outgoing line plug 8, the head end and the tail end of the primary coil 4 are respectively welded to one end of the primary incoming line plug 7 and the primary outgoing line plug 8, the waterproof plug positive plug 103 is welded to the other end of the primary outgoing line plug 8, the waterproof plug negative plug 104 is connected to The other end of the primary incoming line plug-in 7 is welded and connected, the secondary skeleton 5 is fixedly sleeved on the primary skeleton 3, the secondary coil 6 is wound on the secondary skeleton 5, the secondary incoming line plug-in 9 is connected to the upper end of the secondary skeleton 5, the secondary incoming line plug-in 9 is bent and the upper end is welded to the primary incoming line plug-in 7, and then the secondary incoming line plug-in 9 is connected to the primary incoming line plug-in 7 and the waterproof plug negative plug-in 104 by welding. The secondary skeleton 5 is arranged in the shell 10, and the iron core 2, primary skeleton 3, primary coil 4, secondary skeleton 5, secondary coil 6 and the shell 10 are sealed and filled with potting material 13. The secondary skeleton A high-voltage pad 14 is integrally formed at the lower end of the frame 5, and a screw hole is provided on the high-voltage pad 14. A high-voltage connecting hole is integrally formed at the lower end of the shell 10 and is located below the high-voltage pad 14. The high-voltage screw connecting piece 11 is arranged on the screw hole of the high-voltage pad 14, and the high-voltage output end of the high-voltage screw 12 is inserted into the high-voltage connecting hole after passing through the high-voltage screw connecting piece 11 and the screw hole of the high-voltage pad 14. The head end of the secondary coil 6 is socketed with the secondary incoming line plug-in piece 9, and the tail end is socketed with the high-voltage screw connecting piece 11, that is, the head end and tail end of the secondary coil 6 are respectively connected to the secondary incoming line plug-in piece 9 and the high-voltage screw connecting piece 11.

[0021] Compared with the prior art, the electronic injection ignition coil for a motorcycle engine with a waterproof structure provided by the utility model is configured such that a primary incoming wire plug and a primary outgoing wire plug that are relatively arranged are embedded and connected at the upper end of the primary frame, and then the positive electrode plug of the waterproof plug on the waterproof plug shell is welded to the primary outgoing wire plug, the negative electrode plug of the waterproof plug is welded to the primary incoming wire plug, and the primary incoming wire plug is welded to the secondary incoming wire plug. In this way, the primary coil and the frame can be quickly and stably connected to the waterproof connector to form an integral body. The process is simple and the connection is quick. While improving the production efficiency of the integrated waterproof structure ignition coil, the problem of misfire or flameout of the primary coil caused by water accumulation, water splashing or rain is completely solved.

[0022] As a specific example, please refer to Figure 3 and Figure 5 As shown, the upper end of the primary frame 3 is provided with an opening, and the primary incoming line plug-in 7 and the primary outgoing line plug-in 8 are embedded and installed in the opening at the upper end of the primary frame 3, thereby realizing the relative configuration of the primary incoming line plug-in 7 and the primary outgoing line plug-in 8 at the upper end of the primary frame 3.

[0023] As a specific example, please refer to Figure 5 As shown, the upper end of the secondary frame 6 is provided with a bayonet, and the secondary incoming line plug 9 is snapped into the bayonet connected to the upper end of the secondary frame 6, thereby realizing the snap-in structural configuration of the secondary incoming line plug 9 and the secondary frame 6.

[0024] As a specific embodiment, the potting material 13 is an existing epoxy resin filler. The epoxy resin filler is a rigid and lightweight filling material with the functions of filling, bonding, reinforcing and sealing. This material has good adhesion to many metal or non-metallic materials and has good filling properties for spaces of various geometric shapes. Therefore, it is very suitable for the filling and sealing requirements of this ignition coil.

[0025] As a specific embodiment, the waterproof connector assembly 1 is not limited to the combination of the waterproof plug shell 101, the waterproof sealing ring 102, the waterproof plug positive plug 103 and the waterproof plug negative plug 104. Based on the above embodiment, those skilled in the art can also adopt the waterproof connector combination type used by all engines.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An electronic injection ignition coil for a waterproof motorcycle engine, characterized in that: It includes a waterproof connector assembly, an iron core, a primary skeleton, a primary coil, a secondary skeleton, a secondary coil, a primary incoming wire plug-in, a primary outgoing wire plug-in, a secondary incoming wire plug-in, an outer shell, a high-voltage screw connecting piece, a high-voltage screw and a potting material. The waterproof connector assembly includes a waterproof plug shell, a waterproof sealing ring, a waterproof plug positive plug-in and a waterproof plug negative plug-in. The primary skeleton is injection-molded and fixed on the iron core. The primary coil is wound on the primary skeleton. The primary skeleton and the waterproof plug shell are connected together through a snap-fit ​​sleeve. The waterproof sealing ring is arranged in the waterproof plug shell. The waterproof plug positive plug-in and the waterproof plug negative plug-in are connected to the waterproof plug shell. The upper end of the primary skeleton is embedded with the relatively configured primary incoming wire plug-in and primary outgoing wire plug-in. The head end and tail end of the primary coil are respectively welded to one end of the primary incoming wire plug-in and the primary outgoing wire plug-in, and the waterproof plug positive plug-in is welded to the other end of the primary outgoing wire plug-in. The connection is that the negative electrode plug of the waterproof plug is welded to the other end of the primary incoming line plug, the secondary frame is fixedly sleeved on the primary frame, the secondary coil is wound on the secondary frame, the secondary incoming line plug is connected to the upper end of the secondary frame, the bent upper end of the secondary incoming line plug is welded to the primary incoming line plug, the secondary frame is arranged in the shell, the iron core, primary frame, primary coil, secondary frame, the secondary coil and the shell are sealed and filled with potting material, the lower end of the secondary frame is integrally formed with a high-voltage pad, the high-voltage pad is provided with a screw hole, and the lower end of the shell is integrally formed with a high-voltage connection hole located below the high-voltage pad, the high-voltage screw connecting piece is arranged on the screw hole of the high-voltage pad, the high-voltage output end of the high-voltage screw passes through the high-voltage screw connecting piece and the screw hole of the high-voltage pad and is inserted into the high-voltage connection hole, the head end of the secondary coil is sleeved with the secondary incoming line plug, and the tail end is sleeved with the high-voltage screw connecting piece.

2. The electronic injection ignition coil for a motorcycle waterproof structure engine according to claim 1, characterized in that: An opening is provided at the upper end of the primary frame, and the primary incoming wire plug-in and the primary outgoing wire plug-in are embedded in the opening at the upper end of the primary frame.

3. The electronic injection ignition coil for a waterproof motorcycle engine according to claim 1, characterized in that: The upper end of the secondary frame is provided with a bayonet, and the secondary incoming line plug is snapped into the bayonet connected to the upper end of the secondary frame.

4. The electronic injection ignition coil for a motorcycle waterproof structure engine according to claim 1, characterized in that: The potting material is epoxy resin filler.

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