CN220796450U

CN220796450U - Embedded grounding ignition coil

Info

Publication number: CN220796450U
Application number: CN202322579307.9U
Authority: CN
Inventors: 宋静苗; 付晓庆; 于海龙
Original assignee: Harbin Dong An Zhiyang Automobile Electric Co ltd
Current assignee: Harbin Dong An Zhiyang Automobile Electric Co ltd
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-04-16
Anticipated expiration: 2033-09-21

Abstract

An embedded grounding ignition coil belongs to the technical field of ignition coils. The poor grounding caused by the false welding and the missing welding can be avoided, and the production efficiency can be improved. The grounding lug of the coil electromagnetic assembly is provided with a lap joint groove, is in lap joint tin welding with the cathode of the diode of the coil electromagnetic assembly, and one end of the grounding lug, which is connected with the magnetizer of the coil electromagnetic assembly, adopts a wedge-shaped structure and is embedded into a hole formed in the magnetizer. The structure can avoid poor grounding caused by cold joint and leakage joint, and can improve production efficiency. The high-voltage wiring piece is arranged into the structure of the annular belt buckle, so that the high-voltage resistor is easy to install and not easy to move, the assembly efficiency can be improved, and the ignition coil failure caused by the disconnection of the high-voltage resistor and the high-voltage wiring piece can be avoided. Two clamping grooves are formed in corresponding positions of the bottom of the secondary framework and are matched with clamping points on two sides of the high-voltage wiring sheet, so that the high-voltage wiring sheet can be firmly inlaid in the bottom of the secondary framework.

Description

Embedded grounding ignition coil

Technical Field

The utility model belongs to the technical field of ignition coils, and particularly relates to an embedded grounding ignition coil.

Background

In the existing ignition coil, a grounding lug in a socket and the cathode of a diode are soldered on a magnetizer together. By adopting the structure, the problems of cold joint and cold joint leakage easily occur, so that the ignition coil is poor in grounding and needs to be reworked again, and the working efficiency is reduced.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and further provides an embedded grounding type ignition coil which can avoid poor grounding caused by cold welding and missing welding and can improve production efficiency.

The technical scheme adopted by the utility model is as follows:

The embedded grounding ignition coil comprises a high-voltage rod, a socket, a coil electromagnetic assembly arranged in the socket and a shell sleeved outside the socket and the coil electromagnetic assembly, wherein the high-voltage rod is assembled below the shell, and a mounting sleeve is arranged in the shell; and a lap joint groove is formed in the grounding lug of the coil electromagnetic assembly, the lap joint groove is welded with the negative electrode of the diode of the coil electromagnetic assembly in lap joint, and one end, connected with the magnetizer of the coil electromagnetic assembly, of the grounding lug adopts a wedge-shaped structure and is embedded into a hole formed in the magnetizer.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, the lap joint groove is added on the grounding lug, and the lap joint groove is in lap joint soldering with the cathode of the diode, one end of the grounding lug is changed into a wedge-shaped structure and is directly embedded into the hole on the magnetizer at one side, and by adopting the structure, the poor grounding caused by false soldering and missing soldering can be avoided, and the production efficiency can be improved.

2. The outer surface of the magnetizer is coated with the protective sleeve, so that the stress generated by heating of the coil inside can be released by utilizing the elasticity of plastic, and the coil cracking caused by stress concentration is avoided.

3. The high-voltage wiring piece is arranged into the structure of the annular belt buckle, so that the high-voltage resistor is easy to install and not easy to move, the assembly efficiency can be improved, and the ignition coil failure caused by the disconnection of the high-voltage resistor and the high-voltage wiring piece can be avoided. Two clamping grooves are formed in corresponding positions of the bottom of the secondary framework and are matched with clamping points on two sides of the high-voltage wiring sheet, so that the high-voltage wiring sheet can be firmly inlaid in the bottom of the secondary framework.

4. The upper surface of the primary framework is provided with the lead grooves, so that the primary enameled wire can be guided to the tail end of the primary framework before the primary coil is wound, the occurrence rate of jumper wires is greatly reduced, and the production efficiency is improved; and the lead part is not higher than the outer surface of the primary framework, so that the gap between the primary coil and the secondary coil is prevented from being reduced due to overlarge outer diameter of the coil, and the risk of breakdown of epoxy resin filled in the gap is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top view of the primary and ground lugs of the present utility model;

FIG. 3 is a schematic view of the grounding lug structure of the present utility model;

FIG. 4 is a schematic view of the structure of the magnetizer and the protective sleeve thereof according to the present utility model;

FIG. 5 is a schematic view of the structure of the high voltage connector lug of the present utility model;

FIG. 6 is a schematic representation of the primary framework structure of the present utility model;

Wherein: 1. a socket; 2. a power supply tab; 3. a diode; 4. a wire connection piece; 5. a secondary enameled wire; 6. a secondary skeleton; 7. an epoxy resin; 8. a primary enameled wire; 9. a primary skeleton; 10. an iron core; 11. a sleeve; 12. a housing; 13. a high-voltage wiring sheet; 14. a high voltage resistor; 15. a high pressure lever; 16. a conductive spring; 17. a permanent magnet; 18. a primary tab; 19. a secondary tab; 20. a magnetizer; 21. a protective sleeve; 22. a grounding lug; 23. a lap joint groove; 24. a wiring section; 25. a buckle; 26. a plate structure; 27. and a wire guiding groove.

Detailed Description

For a better understanding of the objects, structures and functions of the present utility model, reference should be made to the following detailed description of the utility model with reference to the accompanying drawings.

As shown in fig. 1 to 6, an embedded grounding ignition coil of the present utility model comprises a high-voltage rod 15, a socket 1, a coil electromagnetic assembly installed in the socket 1, and a housing 12 sleeved outside the socket 1 and the coil electromagnetic assembly, wherein the high-voltage rod 15 is assembled under the housing 12, and the housing 12 is provided with an installation sleeve 11; the grounding lug 22 of the coil electromagnetic assembly is provided with a lap joint groove 23, and is lap-welded with the negative electrode of the diode 3 of the coil electromagnetic assembly, and one end of the grounding lug 22 connected with the magnetizer 20 of the coil electromagnetic assembly adopts a wedge-shaped structure and is embedded into a hole formed in the magnetizer 20.

As shown in fig. 1 to 4, the coil electromagnetic assembly includes a diode 3, a wire connection piece 4, a secondary enameled wire 5, a secondary skeleton 6, a primary enameled wire 8, a primary skeleton 9, an iron core 10, a high-voltage wire connection piece 13, a high-voltage resistor 14, a conductive spring 16, a permanent magnet 17, a secondary wire connection piece 19, a grounding wire connection piece 22, two power wire connection pieces 2 and two primary wire connection pieces 18;

The permanent magnet 17 is arranged at one end of the iron core 10 and is arranged in the primary framework 9 together, two primary wiring lugs 18 are arranged on the primary framework 9, the primary enameled wire 8 is wound on the outer surface of the primary framework 9, the two ends of the head end of the primary enameled wire 8 are respectively connected with the two primary wiring lugs 18, the primary framework 9 and the primary enameled wire 8 are arranged in the secondary framework 6, the secondary enameled wire 5 is wound on the outer surface of the secondary framework 6, one end of the secondary enameled wire 5 is connected with the secondary wiring lugs 19 and is connected with the diode 3 through the wiring lugs 4, the other end of the secondary enameled wire 5 is connected with the high-voltage wiring lugs 13 through wiring pins, the high-voltage wiring lugs 13 are connected with the high-voltage resistor 14, the high-voltage resistor 14 is arranged in the shell 12, the conductive spring 16 is arranged below the high-voltage resistor 14, the conductive spring 16 is arranged in the high-voltage rod 15, the two conductive magnets 20 are of U-shaped structures, a complete U-shaped closed magnetic circuit can be formed after combination, the two power wiring lugs 2 and one grounding wiring lug 22 are inserted into the socket 1 outside the secondary framework 6, and the two power wiring lugs 2 are respectively connected with the two primary wiring lugs 18.

As shown in fig. 5, one end of the high-voltage wiring piece 13 is a wiring portion 24, embedded in a groove of the secondary framework 6, and connected with the secondary enameled wire 5, the other end of the high-voltage wiring piece 13 is a resistor connecting portion, the resistor connecting portion adopts a plate body structure 26 with a central hole as a main body to load the high-voltage resistor 14 therein, two ends outside the plate body structure 26 are integrally provided with buckles 25, two clamping grooves are formed in corresponding positions of the bottom of the secondary framework 6, and the clamping grooves are matched with the buckles 25 on two sides of the high-voltage wiring piece 13, so that the high-voltage wiring piece 13 can be firmly embedded in the bottom of the secondary framework 6. By adopting the structure, the high-voltage resistor 14 is easy to install and not easy to move, so that the assembly efficiency can be improved, and the ignition coil failure caused by the separation of the high-voltage resistor 14 and the high-voltage wiring piece 13 can be avoided.

As shown in fig. 3 and 4, the outer surface of each magnetizer 20 is covered with a protective sleeve 21. The elastic plastic coil is used for releasing stress generated by heating the coil inside, so that the coil is prevented from cracking due to stress concentration.

As shown in fig. 6, the primary framework 9 is provided with a lead groove 27 from top to bottom, so that the primary enameled wire 8 can be guided to the tail end of the primary framework 9 before the primary coil is wound, the occurrence rate of jumper wires is greatly reduced, and the production efficiency is improved; and the lead part is not higher than the outer surface of the primary framework 9, so that the gap between the primary enameled wire and the secondary enameled wire is prevented from being reduced due to the overlarge outer diameter of the coil, and the risk of breakdown of epoxy resin filled in the gap is reduced.

1. Structure and assembling process of ignition coil

Component one: one end of the iron core 10 is provided with a permanent magnet 17 which is arranged in the primary framework 9, the primary framework 9 is provided with two primary wiring lugs 18, the outer surface of the primary framework is wound with the primary enameled wire 8, and the head end and the tail end of the primary enameled wire are respectively connected with the two primary wiring lugs 18. The components are arranged in the secondary framework 6, the secondary enameled wire 5 is wound on the outer surface of the secondary framework 6, one end of the secondary enameled wire 5 is connected with the secondary wiring lug 19 and is connected with the diode 3 through the wiring lug 4, the other end of the secondary enameled wire is connected with the high-voltage wiring lug 13 through a wiring pin, one end of the high-voltage wiring lug 13 is embedded into a groove of the secondary framework 6, the other end of the high-voltage wiring lug is embedded into a clamping groove at the bottom of the secondary framework 6, the high-voltage wiring lug 13 is arranged into a ring-shaped structure with a clamping buckle, and the high-voltage resistor 14 is arranged in the groove. The magnetizer 20 has a U-shaped structure, and the number of the magnetizers is two, and the magnetizers can form a complete closed magnetic circuit in a shape of a Chinese character 'kou', and the magnetizer is fastened outside the secondary framework 6. The outer surface of the magnetizer 20 is covered with plastic protective sleeves 21, and the number of the plastic protective sleeves is two.

And a second component: the socket 1 is injection molded with two power lugs 2 and one ground lug 22, and is fitted into the socket lug 4, and then the diode 3 is assembled.

The housing 12 is fitted with a mounting sleeve 11 and a high-voltage resistor 14, and then with the first and second components, and then encapsulated with epoxy 7 at the housing gap. Finally, a conductive spring 16 is fitted into the high-voltage rod 15 and fitted to the lower end of the housing 12.

2. Function of

The power supply energizes the primary enameled wire 8 through the two power connection lugs 2 in the socket 1, the induced magnetic field in the iron core 10 increases, at this time, the induced current generated in the secondary enameled wire 5 is reverse current, and is grounded through the diode 3 through the grounding connection lug 22. After the primary enameled wire 8 is powered off, the induced magnetic field in the iron core 10 rapidly decays, high-voltage electricity is generated in the secondary enameled wire 5, and the spark plug is broken down through the secondary wiring lug 19, the high-voltage resistor 14 and the conductive spring 16.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. An embedded grounding ignition coil comprises a high-voltage rod (15), a socket (1), a coil electromagnetic assembly arranged in the socket (1) and a shell (12) sleeved outside the socket (1) and the coil electromagnetic assembly, wherein Gao Yagan (15) is assembled below the shell (12), and a mounting sleeve (11) is assembled in the shell (12); the method is characterized in that: and a lap joint groove (23) is formed in a grounding lug (22) of the coil electromagnetic assembly, the lap joint groove is welded with the negative electrode of a diode (3) of the coil electromagnetic assembly, and one end, connected with a magnetizer (20) of the coil electromagnetic assembly, of the grounding lug (22) adopts a wedge-shaped structure and is embedded into a hole formed in the magnetizer (20).

2. An embedded grounded ignition coil according to claim 1, wherein: the coil electromagnetic assembly comprises a diode (3), a wiring lug (4), a secondary enameled wire (5), a secondary framework (6), a primary enameled wire (8), a primary framework (9), an iron core (10), a high-voltage wiring lug (13), a high-voltage resistor (14), a conductive spring (16), a permanent magnet (17), a secondary wiring lug (19), a grounding wiring lug (22), two power supply wiring lugs (2) and two primary wiring lugs (18); permanent magnets (17) are arranged at one end of the iron core (10) and are arranged in the primary framework (9) together, two primary wiring lugs (18) are arranged on the primary framework (9), primary enameled wires (8) are wound on the outer surface of the primary framework (9), the head end and the tail end of each primary enameled wire (8) are respectively connected with the two primary wiring lugs (18), the primary framework (9) and the primary enameled wires (8) are arranged in the secondary framework (6), the secondary enameled wires (5) are wound on the outer surface of the secondary framework (6), one end of each secondary enameled wire (5) is connected with the secondary wiring lug (19) and connected with a diode (3) through a wiring lug (4), the other end of each secondary enameled wire (5) is connected with a high-voltage wiring lug (13) through a wiring pin, the high-voltage wiring lug (13) is connected with a high-voltage resistor (14), the high-voltage resistor (14) is arranged in a shell (12), a conductive spring (16) is arranged below the high-voltage rod (14), two conductive springs (16) are arranged in a high-voltage rod (15), two conductive U-shaped magnetic circuits (20) are formed into a U-shaped structure, and the two U-shaped magnetic circuits (22) are buckled outside a complete socket (1) and a power socket (2), the two power supply lugs (2) are respectively connected with the two primary lugs (18).

3. An embedded grounded ignition coil according to claim 2, characterized in that: the high-voltage wiring piece (13) one end is wiring portion (24), imbeds in the recess of secondary skeleton (6), is connected with secondary enameled wire (5), and high-voltage wiring piece (13) other end is and connects resistance portion, connect resistance portion adopts the main part to pack high-voltage resistor (14) wherein for plate body structure (26) that have the centre bore, and plate body structure (26) outside both ends an organic whole is provided with buckle (25), the relevant position of secondary skeleton (6) bottom has set up two draw-in grooves, cooperates with buckle (25) in high-voltage wiring piece (13) both sides.

4. An embedded grounded ignition coil according to claim 2, characterized in that: the outer surface of each magnetizer (20) is covered with a protective sleeve (21).

5. An embedded grounded ignition coil according to claim 2, characterized in that: the primary framework (9) is provided with a lead groove (27) from top to bottom, and the primary enameled wire (8) is guided to the tail end of the primary framework (9).