Dry type ignition coil primary framework structure

Abstract

The utility model relates to the technical field of automobile parts, and discloses a dry type ignition coil primary framework structure which comprises a primary framework, a secondary framework assembly and a shell, and the two ends of the primary framework are fixedly connected with end retaining walls; the primary framework and the end retaining wall are both of a hollow structure, and the size of the hollow part of the primary framework is equal to that of the hollow part of the end retaining wall; the upper end face of each end retaining wall is fixedly connected with an auxiliary positioning block, and the upper end face of the end retaining wall located at the right end of the primary framework is provided with a lead groove. According to the dry type ignition coil primary framework optimization structure, the distance between the inner holes of the primary framework assembly and the secondary framework assembly after assembly is increased, the thickness of an insulating material between the inner holes of the primary framework assembly and the secondary framework assembly is increased, and the insulating performance is improved; meanwhile, the reject ratio of the product process is reduced, waste and loss are reduced, the cost is saved, and the quality risk of customers is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a primary skeleton structure of a dry ignition coil. Background Technique

[0002] As a component of a dry ignition coil, the primary skeleton is used to store energy in the primary component wound around the primary skeleton. Through mutual induction, the secondary component generates an induced pulse high voltage, which is supplied to the spark plug through a circuit to ignite the oil-gas mixture in the cylinder of the automobile engine. However, the existing primary skeleton structure still has certain defects. For example, when the distance between any point between the inner holes of the primary skeleton component and the secondary skeleton component is too small or they are in contact with each other, due to the insufficient insulation distance between the primary skeleton component and the secondary firmware component, even if epoxy insulation material is poured into the coil component, the insulation distance between the primary skeleton component and the secondary skeleton component is still insufficient, and the withstand voltage is insufficient and it will be broken down. Not only is the performance failure rate of the product high when it is taken off the production line, but also the failure rate is very high in the vehicle factory installation and after-sales market. It is difficult to guarantee the product performance and quality. In view of this, a primary skeleton structure of a dry ignition coil is proposed to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a primary skeleton structure of a dry ignition coil to solve the problem of insufficient distance between the primary skeleton component and the secondary firmware component in the existing primary skeleton structure mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: It includes a primary skeleton, a secondary skeleton component and a housing. End walls are fixedly connected to both ends of the primary skeleton; both the primary skeleton and the end walls are hollow structures, and the sizes of the hollow parts of the primary skeleton and the end walls are equal; Auxiliary positioning blocks are fixedly connected to the upper end surfaces of the end walls, and a lead groove is arranged on the upper end surface of the end wall located at the right end of the primary skeleton; the lower end surface of the lead groove is fixedly connected to the upper end surface of the end wall located at the right end of the primary skeleton, and the lead groove is located at the center of the upper end surface of the end wall at the right end of the primary skeleton; Reinforcement blocks are sleeved on both ends of the primary skeleton, and the reinforcement blocks are symmetrically arranged about the horizontal center of the primary skeleton; the outer end surfaces of the reinforcement blocks are fixedly connected to the inner end surfaces of the end walls.

[0005] Adopting the above technical scheme is convenient for fixing the position of the lead to increase the thickness of the insulating material between the inner holes of the primary skeleton component and the secondary skeleton component after assembly.

[0006] As a preferred technical solution of the present utility model, the outer edge of the primary skeleton is evenly wound with primary enameled wire, and the primary lead of the primary enameled wire is led out from the lead wire groove provided on the upper end surface of the end wall at the right end of the primary skeleton.

[0007] Adopting the above technical solution is convenient for restricting the position of the primary enameled wire lead, and avoiding insufficient insulation distance between the primary skeleton assembly and the secondary firmware assembly.

[0008] As a preferred technical solution of the present utility model, the primary skeleton and the primary enameled wire form a primary winding.

[0009] Adopting the above technical solution is convenient for ensuring the stability of the overall structure of the primary winding.

[0010] As a preferred technical solution of the present utility model, the primary winding can be inserted into the secondary skeleton assembly, and an armature assembly is attached after the primary winding is inserted into the secondary skeleton assembly.

[0011] Adopting the above technical solution, the primary winding is sealed with the armature assembly to increase the tightness of the wire package assembly.

[0012] As a preferred technical solution of the present utility model, the upper end surface of the armature assembly is in fitting connection with the lower end surface of the auxiliary positioning block.

[0013] Adopting the above technical solution is convenient for enhancing the tightness of the wire package assembly.

[0014] As a preferred technical solution of the present utility model, the primary winding is inserted into the secondary skeleton assembly, and after the armature assembly is attached, a wire package assembly is formed; the wire package assembly is installed in the housing to form a coil assembly.

[0015] Adopting the above technical solution is convenient for ensuring the overall structural stability of the coil assembly.

[0016] As a preferred technical solution of the present utility model, epoxy insulating material is filled between the primary skeleton and the secondary skeleton assembly.

[0017] Adopting the above technical solution is convenient for increasing the insulation performance of the coil assembly.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: the optimized structure of the primary skeleton of this dry ignition coil increases the distance between the inner holes of the primary skeleton assembly and the secondary skeleton assembly after assembly, increases the thickness of the insulating material between the inner holes of the primary skeleton assembly and the secondary skeleton assembly, and improves the insulation performance; at the same time, it reduces the defective rate during the product process, reduces waste losses, saves costs, and also reduces the quality risk at the customer's place;

[0019] 1. Wind the primary enameled wire around the primary skeleton. The primary lead wire is led out from the lead wire groove on the upper surface of the end retaining wall at the right end of the primary skeleton to form the primary winding. Then, install the primary winding into the secondary skeleton assembly, and then install the iron core assembly to form a wire package assembly. Finally, install the wire package assembly into the housing to form a coil assembly. Since the lead wire groove of the primary skeleton is designed on the end retaining wall and the primary lead wire is led out from the lead wire groove of the end retaining wall, the distance between the inner holes of the primary skeleton assembly and the secondary skeleton assembly after assembly is increased, the thickness of the insulating material between the inner holes of the primary skeleton assembly and the secondary skeleton assembly is increased, and the insulation performance is improved. Description of the Drawings

[0020] Figure 1 Schematic three-dimensional structure diagram of the primary skeleton of the present utility model;

[0021] Figure 2 Schematic front view structure diagram of the primary skeleton of the present utility model;

[0022] Figure 3 Schematic top view structure diagram of the primary skeleton of the present utility model;

[0023] Figure 4 Schematic structure diagram of the primary winding of the present utility model;

[0024] Figure 5 Schematic connection structure diagram of the housing and the primary winding of the present utility model.

[0025] In the figure: 1. Primary skeleton; 2. Primary enameled wire; 3. Secondary skeleton assembly; 4. Iron core assembly; 5. Housing; 6. End retaining wall; 7. Reinforcement block; 8. Lead wire groove; 9. Auxiliary positioning block; 10. Primary winding. Detailed Embodiment

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-5, The technical solution of the present utility model: A dry ignition coil primary skeleton structure, including a primary skeleton 1, a secondary skeleton assembly 3 and a housing 5. Both ends of the primary skeleton 1 are fixedly connected with end walls 6; both the primary skeleton 1 and the end walls 6 are hollow structures, and the sizes of the hollow parts of the primary skeleton 1 and the end walls 6 are equal; auxiliary positioning blocks 9 are fixedly connected to the upper end surfaces of the end walls 6, and a lead wire groove 8 is provided on the upper end surface of the end wall 6 located at the right end of the primary skeleton 1; the lower end surface of the lead wire groove 8 is fixedly connected to the upper end surface of the end wall 6 located at the right end of the primary skeleton 1, and the lead wire groove 8 is located at the center of the upper end surface of the end wall 6 located at the right end of the primary skeleton 1; reinforcing blocks 7 are sleeved on both ends of the primary skeleton 1, and the reinforcing blocks 7 are symmetrically arranged about the horizontal center of the primary skeleton 1; the outer end surfaces of the reinforcing blocks 7 are fixedly connected to the inner end surfaces of the end walls 6, which is convenient for fixing the position of the lead wire to increase the thickness of the insulating material between the inner holes of the primary skeleton 1 assembly and the secondary skeleton assembly 3 after assembly;

[0028] The outer edge of the primary skeleton 1 is evenly wound with a primary enameled wire 2, and the primary lead wire of the primary enameled wire 2 is led out from the lead wire groove 8 provided on the upper end surface of the end wall 6 located at the right end of the primary skeleton 1, which is convenient for restricting the position of the lead wire of the primary enameled wire 2 and avoiding insufficient insulation distance between the primary skeleton 1 assembly and the secondary skeleton assembly 3;

[0029] The primary skeleton 1 and the primary enameled wire 2 form a primary winding 10, which is convenient for ensuring the overall structural stability of the primary winding 10;

[0030] The primary winding 10 can be inserted into the secondary skeleton assembly 3, and after the primary winding 10 is inserted into the secondary skeleton assembly 3, an iron core assembly 4 is attached, and the iron core assembly 4 is used to seal the primary winding 10 to increase the tightness of the coil assembly;

[0031] The upper end surface of the iron core assembly 4 is in fit connection with the lower end surface of the auxiliary positioning block 9, which is convenient for enhancing the sealing of the coil assembly;

[0032] After the primary winding 10 is inserted into the secondary skeleton assembly 3 and the iron core assembly 4 is attached, a coil assembly is formed; after the coil assembly is installed in the housing 5, a coil component is formed, which is convenient for ensuring the overall structural stability of the coil component;

[0033] Epoxy insulating material is filled between the primary skeleton 1 and the secondary skeleton assembly 3, which is convenient for increasing the insulation performance of the coil component;

[0034] Working principle: Wind the primary enameled wire 2 around the primary skeleton 1. The primary lead wire is led out from the lead wire groove 8 on the upper end surface of the end wall 6 at the right end of the primary skeleton 1 to form the primary winding 10. Install the primary winding 10 into the secondary skeleton assembly 3, and then install the yoke assembly 4 to form the wire package assembly. Finally, install the wire package assembly into the housing 5 to form the coil assembly. Since the lead wire groove 8 of the primary skeleton 1 is designed on the end wall 6, the primary lead wire is led out from the lead wire groove 8 of the end wall 6, increasing the distance between the primary skeleton 1 assembly and the inner hole of the secondary skeleton assembly 3 after assembly, increasing the thickness of the insulating material between the primary skeleton 1 assembly and the inner hole of the secondary skeleton assembly 3, and improving the insulation performance. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A primary skeleton structure of a dry ignition coil, comprising a primary skeleton (1), a secondary skeleton assembly (3) and a housing (5), characterized in that: Both ends of the primary frame (1) are fixedly connected with end retaining walls (6); both the primary frame (1) and the end retaining wall (6) are hollow structures, and the hollow parts of the primary frame (1) and the end retaining wall (6) are of equal size; the upper end faces of the end retaining walls (6) are fixedly connected with auxiliary positioning blocks (9), and the upper end face of the end retaining wall (6) located at the right end of the primary frame (1) is provided with a lead groove (8); the lower end face of the lead groove (8) is fixedly connected to the upper end face of the end retaining wall (6) located at the right end of the primary frame (1), and the lead groove (8) is located at the center of the upper end face of the end retaining wall (6) at the right end of the primary frame (1); both ends of the primary frame (1) are provided with reinforcement blocks (7), and the reinforcement blocks (7) are symmetrically arranged about the horizontal center of the primary frame (1); the outer end faces of the reinforcement blocks (7) are fixedly connected to the inner end faces of the end retaining wall (6).

2. A primary skeleton structure of a dry ignition coil according to claim 1, characterized in that: The primary enamel package (2) is evenly wound around the outer edge of the primary frame (1), and the primary lead wire of the primary enamel package (2) is led out from the lead wire groove (8) provided on the upper end surface of the end retaining wall (6) located at the right end of the primary frame (1).

3. A primary skeleton structure of a dry ignition coil according to claim 2, characterized in that: The primary skeleton (1) and the primary enameled package (2) form a primary winding (10).

4. A primary skeleton structure of a dry ignition coil according to claim 3, characterized in that: The primary winding (10) can be inserted into the secondary frame component (3), and after the primary winding (10) is inserted into the secondary frame component (3), a mouth iron component (4) is attached.

5. A primary skeleton structure of a dry ignition coil according to claim 4, characterized in that: The upper end surface of the iron mouth assembly (4) is fitted and connected to the lower end surface of the auxiliary positioning block (9).

6. A primary skeleton structure of a dry ignition coil according to claim 5, characterized in that: The primary winding (10) is inserted into the secondary frame assembly (3), and the iron plate assembly (4) is attached to form a wire package assembly; the wire package assembly is installed in the housing (5) to form a coil assembly.

7. A primary skeleton structure of a dry ignition coil according to claim 6, characterized in that: Epoxy insulating material is filled between the primary frame (1) and the secondary frame assembly (3).

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