Multifunction integrated ignition coil
Through the gradient damping and three-dimensional heat dissipation design of the multi-functional integrated ignition coil, the problems of poor heat dissipation and mechanical fatigue of traditional ignition coils in high temperature and vibration environments are solved, achieving efficient heat dissipation and stable protection, and adapting to harsh working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU MINJO AUTO PARTS CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional ignition coils are prone to poor heat dissipation, insulation aging, and mechanical fatigue under high temperature and vibration environments, and are also complex to assemble and have high maintenance costs.
It adopts a multi-functional integrated design, combining a gradient damping structure and a three-dimensional heat dissipation system, including honeycomb buffer blocks, nano-ceramic thermal conductive coating and vertically stacked plug-in terminals, to achieve efficient heat dissipation and stable protection.
Significantly improves heat dissipation efficiency, enhances shock resistance, simplifies assembly process, reduces space occupation, and adapts to harsh working conditions.
Smart Images

Figure CN224342159U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ignition coil technology, and in particular to a multifunctional integrated ignition coil. Background Technology
[0002] Traditional ignition coils are prone to poor heat dissipation, insulation aging, and mechanical fatigue under high temperature and vibration environments. Existing technologies often employ single heat sinks or forced air cooling, resulting in low heat dissipation efficiency and large space requirements. Vibration damping designs typically rely on rubber pads, which are prone to aging and failure after prolonged use. Furthermore, the assembly of the coil module and housing is complex, leading to high maintenance and replacement costs. This solution, through an integrated design combining a gradient vibration damping structure and a three-dimensional heat dissipation system, achieves efficient heat dissipation and stable protection within a limited space, meeting the demands of harsh operating conditions. Utility Model Content
[0003] The main purpose of this invention is to provide a multifunctional integrated ignition coil, which can effectively solve the problems in the background technology.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A multifunctional integrated ignition coil includes an integrated protective housing and a fixing component. The integrated protective housing contains an ignition coil body, a protective shock-absorbing component, and a baffle. The bottom of the integrated protective housing has a square groove that matches the baffle, and a heat dissipation mechanism is embedded in the baffle.
[0006] The heat dissipation mechanism includes a substrate, heat dissipation fins and extended edges. The substrate is embedded in a baffle and has radial heat dissipation fins on its bottom surface. Extended edges are fixed on three sides of the substrate, and each extended edge has a protruding retaining plate at its end.
[0007] The ignition coil body is composed of a primary coil module, a secondary coil module, and an iron core assembly stacked vertically through plug-in terminals.
[0008] The protective shock absorption component includes an elastic shock absorption layer covering the coil body. The elastic shock absorption layer is integrally injection molded from a silicone substrate and has honeycomb-shaped buffer blocks embedded inside.
[0009] Preferably, the honeycomb buffer block is made of closed-cell foamed silicone material and has a gradient density distribution along the coil axis, with the density near the inner wall of the integrated protective shell being higher than that near the coil body.
[0010] Preferably, the integrated protective housing has a power connection interface on the side wall and a snap-fit connection port on the top. The snap-fit connection port is connected to the ignition component through a transition rod, and the transition rod and the snap-fit connection port are connected by an anti-detachment locking structure.
[0011] Preferably, the four corners of the bottom surface of the integrated protective housing are each threaded with a fixing screw, and the baffle is fixed to the bottom of the integrated protective housing by the four fixing screws.
[0012] Preferably, the bottom of the fixing member is provided with a slot that matches the protruding card plate, and the heat dissipation mechanism is fixed to the baffle plate by the engagement of the protruding card plate with the slot.
[0013] Preferably, the radial heat dissipation fins and heat dissipation fins on the bottom surface of the substrate form a three-dimensional heat dissipation channel, and the surface of the heat dissipation fins is provided with a nano-ceramic thermally conductive coating.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] The synergistic effect of three-dimensional heat dissipation channels and nano-coating significantly improves heat dissipation efficiency; the gradient density buffer structure absorbs vibration energy in layers, enhancing impact resistance.
[0016] The plug-in vertical stacking design achieves a compact layout and reduces space occupation; the modular snap-fit structure and anti-loosening locking connection simplify the disassembly and assembly process and improve maintenance convenience, making it suitable for harsh working environments such as high vibration and high temperature.
[0017] The baffle is fixed to the bottom of the integrated protective shell with four fixing screws, which is convenient for disassembly and provides a stable connection. The heat dissipation mechanism is fixed to the baffle by the engagement of the protruding plate and the slot, which is convenient for installation and fixation. At the same time, the position can be changed to adapt to different installation environments. Attached Figure Description
[0018] Figure 1 This is a front view structural diagram of the multifunctional integrated ignition coil of this utility model;
[0019] Figure 2 This is a schematic diagram of the installation structure of the multifunctional integrated ignition coil of this utility model;
[0020] Figure 3 This is a three-dimensional schematic diagram of the integrated protective shell for the multifunctional integrated ignition coil of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the multifunctional integrated ignition coil heat dissipation mechanism of this utility model.
[0022] In the diagram: 1. Integrated protective shell; 2. Fixing component; 3. Heat dissipation mechanism; 31. Base plate; 32. Heat dissipation fins; 33. Extended edge; 34. Protruding retaining plate; 4. Power connection interface; 5. Snap-fit connection port; 6. Transition rod; 7. Ignition assembly; 8. Fixing hole; 9. Fixing screw; 10. Baffle. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figure 1-4 As shown, a multifunctional integrated ignition coil includes an integrated protective housing 1 and a fixing component 2. The integrated protective housing 1 is provided with an ignition coil body, a protective shock-absorbing component and a baffle 10. The bottom of the integrated protective housing 1 is provided with a square groove that is adapted to the baffle 10. A heat dissipation mechanism 3 is embedded on the baffle 10.
[0025] The heat dissipation mechanism 3 includes a base plate 31, heat dissipation fins 32 and extended edges 33. The base plate 31 is embedded in the baffle 10 and has radial heat dissipation fins on its bottom surface. Extended edges 33 are fixedly provided on three sides of the base plate 31, and each extended edge 33 has a protruding retaining plate 34 at its end.
[0026] The ignition coil body is composed of a primary coil module, a secondary coil module, and an iron core assembly stacked vertically through plug-in terminals.
[0027] The protective shock absorption component includes an elastic shock absorption layer covering the coil body. The elastic shock absorption layer is integrally injection molded from a silicone substrate and has honeycomb-shaped buffer blocks embedded inside.
[0028] In this embodiment, the honeycomb buffer block is made of closed-cell foamed silicone material with a pore size of 0.3mm-0.8mm and a gradient density distribution along the coil axis, with the density near the inner wall of the integrated protective shell 1 being higher than that near the coil body.
[0029] Specifically, the gradient density honeycomb buffer block has a high-density 0.8mm aperture near the inner wall of the outer shell to provide rigid support, and a low-density 0.3mm aperture near the coil end to enhance deformation energy absorption and avoid resonance damage to the coil.
[0030] In this embodiment, the integrated protective housing 1 has a power connection interface 4 on its side wall and a snap-fit connection port 5 on its top. The snap-fit connection port 5 is connected to the ignition assembly 7 through a transition rod 6, and the transition rod 6 and the snap-fit connection port 5 are connected by an anti-detachment locking structure.
[0031] Specifically, the power connection interface 4 is integrated into the side wall of the housing, shortening the wiring harness path; the snap-fit connection port 5 features a standardized interface design, compatible with various ignition components 7. The anti-detachment locking structure uses a threaded lock or elastic barb between the transition rod 6 and the snap-fit port 5 to prevent the connection from loosening due to vehicle bumps.
[0032] In this embodiment, the bottom of the fixing member 2 is provided with a slot that is adapted to the protruding card plate 34, and the heat dissipation mechanism 3 is fixed to the baffle 10 by the engagement of the protruding card plate 34 with the slot; the radial heat dissipation fins and heat dissipation fins 32 on the bottom surface of the substrate 31 form a three-dimensional heat dissipation channel, and the surface of the heat dissipation fins 32 is provided with a nano-ceramic thermal conductive coating; the four corners of the bottom surface of the integrated protective shell 1 are threaded with fixing screws 9, and the baffle 10 is fixed to the bottom of the integrated protective shell 1 by four fixing screws 9.
[0033] Specifically, the slot connection: the raised locking plate 34 and the slot of the fixing piece 2 form a three-point positioning to ensure that the heat dissipation mechanism 3 has no radial displacement after installation. Three-dimensional heat dissipation channel: the bottom surface of the radial fins 31 enhances longitudinal heat conduction, and the heat dissipation fins 32 expand the heat dissipation surface laterally; nano-ceramic coating: the micro-pores increase the radiative heat dissipation surface area, reducing the continuous operating temperature by 15℃; a baffle 10 is fixed to the bottom of the integrated protective shell 1 by four fixing screws 9 for easy disassembly and stable connection; the heat dissipation mechanism 3 is fixed to the baffle 10 by the locking connection between the raised locking plate 34 and the slot, facilitating installation and fixation, and its position can be changed to adapt to different installation environments.
[0034] Working principle: Ignition coil body: After the primary coil module is energized, it generates a magnetic field and generates a high voltage through electromagnetic induction with the secondary coil module. The primary coil module is vertically stacked through plug-in terminals, and the iron core assembly enhances the magnetic circuit efficiency to achieve efficient energy transfer.
[0035] Protective and shock-absorbing components: The silicone-based elastic damping layer absorbs high-frequency vibrations, and the gradient-density honeycomb buffer blocks disperse impact energy in synergy, reducing the impact of mechanical stress on the coil;
[0036] Heat dissipation mechanism 3: The radial heat dissipation fins on the bottom surface of the substrate 31 increase the contact area and the heat dissipation fins 32 guide the airflow to form a three-dimensional heat dissipation channel. Combined with the nano-ceramic thermal conductive coating, it accelerates heat conduction and quickly dissipates the heat from the coil.
[0037] Assembly structure: The baffle 10 is fitted into the integrated protective shell 1 through a square groove, and the heat dissipation mechanism 3 is engaged with the slot of the fixing part 2 through the protruding card plate 34, so as to realize modular quick assembly and disassembly.
[0038] The circuits, electronic components, and control modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multifunctional integrated ignition coil, characterized in that: It includes an integrated protective shell (1) and a fastener (2). The integrated protective shell (1) is provided with an ignition coil body, a protective shock absorption component and a baffle (10) inside. The bottom of the integrated protective shell (1) is provided with a square groove that is adapted to the baffle (10). A heat dissipation mechanism (3) is embedded on the baffle (10). The heat dissipation mechanism (3) includes a base plate (31), heat dissipation fins (32) and an extension edge (33). The base plate (31) is embedded in the baffle (10) and has radial heat dissipation fins on its bottom surface. The three sides of the base plate (31) are fixedly provided with extension edges (33), and each extension edge (33) has a protruding retaining plate (34) at its end. The ignition coil body is composed of a primary coil module, a secondary coil module, and an iron core assembly stacked vertically through plug-in terminals; The protective shock absorption component includes an elastic shock absorption layer covering the coil body. The elastic shock absorption layer is integrally injection molded from a silicone substrate and has honeycomb-shaped buffer blocks embedded inside.
2. The multifunctional integrated ignition coil according to claim 1, characterized in that: The honeycomb buffer block is made of closed-cell foamed silicone material and has a gradient density distribution along the coil axis. The density near the inner wall of the integrated protective shell (1) is higher than the density near the coil body.
3. The multifunctional integrated ignition coil according to claim 1, characterized in that: The integrated protective housing (1) has a power connection interface (4) on its side wall and a snap-fit connection port (5) on its top. The snap-fit connection port (5) is connected to the ignition assembly (7) through a transition rod (6), and the transition rod (6) and the snap-fit connection port (5) are connected by an anti-detachment locking structure.
4. The multifunctional integrated ignition coil according to claim 3, characterized in that: The integrated protective housing (1) has four screws (9) threaded on the bottom corners, and the baffle (10) is fixed to the bottom of the integrated protective housing (1) by four screws (9).
5. The multifunctional integrated ignition coil according to claim 1, characterized in that: The bottom of the fixing member (2) is provided with a slot that is compatible with the protruding card plate (34), and the heat dissipation mechanism (3) is fixed to the baffle (10) by the engagement of the protruding card plate (34) with the slot.
6. The multifunctional integrated ignition coil according to claim 1, characterized in that: The radial heat dissipation fins and heat dissipation fins (32) on the bottom surface of the substrate (31) form a three-dimensional heat dissipation channel, and the surface of the heat dissipation fins (32) is provided with a nano-ceramic thermally conductive coating.