Modularized ignition coil

Abstract

The utility model discloses a modularized ignition coil which comprises a shell and a modularized assembly, a high-voltage sheath is arranged at the lower end of the shell, the modularized assembly is arranged in the shell, the modularized assembly comprises a coil assembly and an ignition module, the ignition module comprises a supporting plate and a PCB, the PCB is arranged on the supporting plate, and the coil assembly is arranged on the shell. The supporting plate is provided with a U-shaped positioning groove, and the U-shaped positioning groove is matched with the coil assembly to fix the ignition module. According to the utility model, the coil assembly and the ignition module are integrally fixed and modularized by adopting a modularization thought, so that the assembling steps are simplified, the step of welding in the shell is avoided, and the implementation of automatic production is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition coils, in particular to a modular ignition coil. Background Art

[0002] The ignition coil is one of the parts of the engine ignition device, which provides sufficient energy for the spark plug to generate enough electric sparks and improve the engine performance. The ignition coil is mainly composed of the primary coil, the secondary wire solid core and the ignition module.

[0003] Generally, there are two sets of coils, primary and secondary, in the ignition coil. One end of the primary coil is connected to the positive power supply on the vehicle, and the other end is connected to the switching device. One end of the secondary coil is connected to the primary coil, and the other end is connected to the high-voltage line output end to output high voltage electricity.

[0004] During assembly, the enameled wire lead pins of the primary coil and the secondary coil need to be welded and electrically connected to the pins of the diode and the high-voltage plug on the ignition module. For example, in the Chinese patent with the authorization announcement number CN216054250U, the ignition coil disclosed in this patent is to place the coil assembly in the shell first, then place the ignition module in the shell, and then weld the pins of the coil assembly and the pins of the diode and the ignition module to electrically connect. Such welding will produce sparks and debris left in the shell, and the flying sparks may damage the components, and this ignition coil structure is not conducive to automated production.

[0005] Therefore, it is necessary to improve the structure of the ignition coil to solve the problem that spark debris generated during welding remains in the shell. Utility Model Content

[0006] The purpose of the utility model is to provide a modular ignition coil. Before the coil assembly and the ignition module are assembled in a shell, the coil assembly and the ignition module are first fixed together as a modular component, and then the modular component is placed in the shell to complete the assembly, thereby avoiding the step of welding in the shell and facilitating the implementation of automated production.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: a modular ignition coil, including a shell and a modular component, the lower end of the shell is provided with a high-voltage sheath, the modular component is arranged in the shell, the modular component includes a coil component and an ignition module, the ignition module includes a support plate and a PCB board, the PCB board is arranged on the support plate, the support plate is provided with a U-shaped positioning groove, and the U-shaped positioning groove cooperates with the coil assembly to fix the ignition module.

[0008] By adopting the above technical solution, the ignition module is fixed on the coil assembly through the U-shaped positioning groove on the support plate as a modular component. During assembly, the modular component can be directly placed in the shell, avoiding the welding step inside the shell, and is conducive to the implementation of automated production.

[0009] The utility model is further configured as follows: the coil assembly includes a primary frame, a secondary frame and an iron core assembly, the primary frame is provided with a primary coil, the secondary frame is arranged on the outside of the primary frame, the secondary frame is wound with a secondary coil, and the iron core assembly is wound on the primary frame and the secondary frame.

[0010] The utility model is further configured as follows: the core assembly includes a T-shaped core and a first C-shaped core and a second C-shaped core; the first C-shaped core and the second C-shaped core are symmetrically arranged and combined to form an outer frame; and the T-shaped core is arranged throughout the primary skeleton.

[0011] The utility model is further configured as follows: the first C-shaped iron core cooperates with the U-shaped positioning groove to fix the ignition module on the coil assembly.

[0012] The utility model is further configured as follows: the second C-shaped iron core cooperates with the U-shaped positioning groove to fix the ignition module on the coil assembly.

[0013] The utility model is further configured as follows: the U-shaped positioning groove is fixed by interference fit.

[0014] The utility model is further configured as follows: the U-shaped positioning groove is snap-fitted and fixed.

[0015] The utility model is further configured as follows: the modular component further comprises a low-voltage connector, and the low-voltage connector is arranged on a support plate and electrically connected to the PCB board.

[0016] The utility model is further configured as follows: a high-voltage pin, a suppression resistor and a high-voltage spring are arranged in the high-voltage sheath, the high-voltage spring is electrically connected to the suppression resistor, and the suppression resistor is electrically connected to the high-voltage pin.

[0017] The utility model is further configured as follows: the modular component is provided with a negative high-voltage plug-in, and the negative high-voltage plug-in is electrically connected to the high-voltage pin.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the coil assembly and the ignition module are fixed together into a modular structure by adopting a modular concept, which simplifies the assembly steps, avoids the step of welding in the shell, and is conducive to the implementation of automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front structural view of the modular components in the embodiment of the utility model.

[0020] Figure 2 It is a side sectional view of a modular component in an embodiment of the utility model.

[0021] Figure 3 It is a back structural view of the modular components in the embodiment of the utility model.

[0022] Figure 4 It is a cross-sectional view of a modular ignition coil in an embodiment of the utility model.

[0023] Figure 5 This is a finished assembly view of a modular ignition coil in an embodiment of the utility model.

[0024] In the figure: 1. Shell; 2. Modular component; 201. Coil component; 202. Primary skeleton; 203. Secondary skeleton; 204. Core component; 205. T-type core; 206. First C-type core; 207. Second C-type core; 208. Negative high-voltage plug; 209. Diode; 211. Ignition module; 212. Support plate; 213. PCB board; 214. U-shaped positioning groove; 215. Low-voltage connector; 216. Positive high-voltage plug; 217. Low-voltage plug; 3. High-voltage sheath; 301. High-voltage pin; 302. Suppression resistor; 303. High-voltage spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] As attached Figure 1 To Attachment Figure 5 As shown, this embodiment discloses a modular ignition coil. During assembly, the coil assembly 201 and the ignition module 211 are first combined and fixed, and the terminal ends are welded to form a modular assembly 2, and then the modular assembly 2 is placed in the shell 1 to assemble the ignition coil; in this way, the modular assembly 2 is welded in advance outside the shell 1, and the sparks and debris generated by the welding are easy to clean and will not be brought into the shell 1. At the same time, the modular fixing structure of the coil assembly 201 and the ignition module 211 is more compact and firm, and meets the requirements of automated production.

[0027] As attached Figure 4As shown, a modular ignition coil includes a shell 1 and a modular component 2. A high-voltage sheath 3 is provided at the lower end of the shell 1. A high-voltage pin 301, a suppression resistor 302 and a high-voltage spring 303 are provided in the high-voltage sheath 3. The modular component 2 is arranged in the shell 1, and the modular component 2 is connected to the high-voltage pin 301 through a negative high-voltage plug 208.

[0028] As attached Figure 1 To Attachment Figure 3 As shown, the modular component 2 includes a coil component 201 and an ignition module 211, the coil component 201 includes a primary skeleton 202, a secondary skeleton 203 and a core component 204, a primary coil is provided in the primary skeleton 202, the secondary skeleton 203 is arranged on the outer side of the primary skeleton 202, the secondary coil is wound on the secondary skeleton 203, and the core component 204 is wound on the primary skeleton 202 and the secondary skeleton 203; the ignition module 211 includes a support plate 212 and a PCB board 213, the PCB board 213 is arranged on the support plate 212, a U-shaped positioning groove 214 is provided on the support plate 212, and the ignition module 211 is fixedly connected to the core component 204 through the U-shaped positioning groove 214.

[0029] As attached Figure 1 As shown, the core assembly 204 includes a T-type core 205 and a first C-type core 206 and a second C-type core 207. The first C-type core 206 and the second C-type core 207 are symmetrically arranged and combined to form an outer frame. The T-type core 205 is located between the first C-type core 206 and the second C-type core 207 and is seamlessly connected to the first C-type core 206 and the second C-type core 207; the T-type core 205 is arranged throughout the primary skeleton 202, and the outer frame formed by the combination of the first C-type core 206 and the second C-type core 207 is arranged around the secondary skeleton 203.

[0030] The U-shaped positioning groove 214 on the support plate 212 is fixed on the first C-shaped iron core 206 and / or the second C-shaped iron core 207 .

[0031] In some embodiments, two symmetrical U-shaped positioning grooves 214 are provided on the support plate 212 , and the U-shaped positioning grooves 214 are symmetrically fixedly fitted on the first C-shaped iron core 206 and the second C-shaped iron core 207 .

[0032] In some embodiments, an even number of U-shaped positioning grooves 214 are disposed on the support plate 212 , and the U-shaped positioning grooves 214 are fixedly fitted on the first C-shaped iron core 206 and the second C-shaped iron core 207 .

[0033] In some embodiments, an odd number of U-shaped positioning grooves 214 are disposed on the support plate 212 , and the U-shaped positioning grooves 214 are fixedly fitted on the first C-shaped iron core 206 and the second C-shaped iron core 207 .

[0034] In some embodiments, the U-shaped positioning groove 214 is fixed to the first C-shaped core 206 and the second C-shaped core 207 by interference fit.

[0035] In some embodiments, a buckle is provided on the U-shaped positioning groove 214 , and the U-shaped positioning groove 214 is buckled on the first C-shaped iron core 206 and the second C-shaped iron core 207 .

[0036] The modular component 2 also includes a low-voltage connector 215, which is fixed on the support plate 212. The low-voltage connector 215 is electrically connected to the PCB board 213 through a low-voltage plug 217, and the low-voltage connector 215 is electrically connected to the coil component 201 through a high-voltage plug 216.

[0037] During installation, prepare the primary frame 202 and the secondary frame 203 around which the coil is wound, insert the T-shaped iron core 205 through the primary frame 202, and fix the first C-shaped iron core 206 and the second C-shaped iron core 207 to the T-shaped iron core 205 around the secondary frame 203 respectively. Then fix the ignition module 211 on the coil assembly 201 through the U-shaped positioning groove 214, weld the positive high-voltage plug 216 and the diode 209 to electrically connect them to form a modular component 2, and finally put the modular component 2 into the shell 1, and the modular component 2 is electrically connected to the high-voltage pin 301 in the high-voltage bushing through the negative high-voltage plug 208 to complete the assembly.

[0038] In this embodiment, the modular ignition coil adopts a modular concept to fix the coil assembly 201 and the ignition module 211 into one modular assembly 2, which simplifies the assembly steps, avoids the welding steps in the shell 1, and is conducive to the implementation of automated production.

[0039] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A modular ignition coil, comprising a housing (1) and a modular component (2), wherein a high voltage sheath (3) is provided at the lower end of the housing (1), and the modular component (2) is arranged in the housing (1), characterized in that: The modular component (2) comprises a coil component (201) and an ignition module (211); the ignition module (211) comprises a support plate (212) and a PCB board (213); the PCB board (213) is arranged on the support plate (212); a U-shaped positioning groove (214) is provided on the support plate (212); the U-shaped positioning groove (214) cooperates with the coil component (201) to fix the ignition module (211).

2. A modular ignition coil according to claim 1, characterized in that: The coil assembly (201) comprises a primary frame (202), a secondary frame (203) and an iron core assembly (204); a primary coil is arranged inside the primary frame (202); the secondary frame (203) is arranged outside the primary frame (202); the secondary coil is wound on the secondary frame (203); and the iron core assembly (204) is wound on the primary frame (202) and the secondary frame (203).

3. A modular ignition coil according to claim 2, characterized in that: The core assembly (204) includes a T-shaped core (205), a first C-shaped core (206), and a second C-shaped core (207); the first C-shaped core (206) and the second C-shaped core (207) are symmetrically arranged to form an outer frame; and the T-shaped core (205) is arranged throughout the primary skeleton (202).

4. A modular ignition coil according to claim 3, characterized in that: The first C-shaped iron core (206) cooperates with the U-shaped positioning groove (214) to fix the ignition module (211) on the coil assembly (201).

5. The modular ignition coil according to claim 3, characterized in that: The second C-shaped iron core (207) cooperates with the U-shaped positioning groove (214) to fix the ignition module (211) on the coil assembly (201).

6. A modular ignition coil according to claim 4 or 5, characterized in that: The U-shaped positioning groove (214) is fixed by interference fit.

7. A modular ignition coil according to claim 4 or 5, characterized in that: The U-shaped positioning groove (214) is snap-fitted and fixed.

8. The modular ignition coil according to claim 1, characterized in that: The modular component (2) further comprises a low-voltage connector (215), wherein the low-voltage connector (215) is arranged on the support plate (212) and is electrically connected to the PCB board (213).

9. The modular ignition coil according to claim 1, characterized in that: A high-voltage pin (301), a suppression resistor (302) and a high-voltage spring (303) are arranged in the high-voltage sheath (3); the high-voltage spring (303) is electrically connected to the suppression resistor (302), and the suppression resistor (302) is electrically connected to the high-voltage pin (301).

10. The modular ignition coil according to claim 1, characterized in that: The modular component (2) is provided with a negative high-voltage plug-in sheet (208), and the negative high-voltage plug-in sheet (208) is electrically connected to the high-voltage pin (301).

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