Ignition coil sealing structure

Abstract

The utility model relates to the technical field of ignition coils, in particular to an ignition coil sealing structure which comprises a pipe body, an installation head is arranged on the right side of the pipe body, a limiting clamping groove is formed in the surface of the pipe body, a connecting sleeve is fixedly connected to the surface of the pipe body, a limiting clamping ring is fixedly connected to the front end of the connecting sleeve, and the limiting clamping ring is clamped in the limiting clamping groove. The rear end of the connecting sleeve is fixedly connected with multiple sets of pressing pieces, outer threaded rings are arranged on the surfaces of the pressing pieces, the front end thickness of the pressing pieces is smaller than the rear end thickness, the surface of the connecting sleeve is in threaded connection with a sealing ring, the inner diameter of the sealing ring is larger than the outer diameter of the connecting sleeve, and the outer diameter of the sealing ring is smaller than the inner diameter of the mounting hole. The sealing ring is arranged outside the connecting sleeve in a sleeving mode, at the moment, the pipe body is rotated, the pressing piece can continuously extrude towards the interior of the sealing ring, the sealing ring is expanded outwards, and the sealing ring is tightly connected with the pipe body and the mounting hole. When the ignition coil sealing ring is disassembled, only the pipe body needs to be rotated in the opposite direction, the pressing piece is pushed out of the sealing ring, and then the ignition coil sealing ring can be disassembled and assembled conveniently.

Description

Technical Field

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

[0002] The function of the ignition coil is to convert low-voltage current into high-voltage current, supply the spark plug for sparking, and ignite the mixture in the engine cylinder. It is actually equivalent to a transformer. The ignition coil consists of a primary coil, a secondary coil and an iron core. It can convert the low-voltage current output by the power supply into high-voltage current to achieve the purpose of ignition. When in use, insert the bottom of the ignition coil into the cylinder bore of the engine, and fix the top of the ignition coil on the engine cylinder head. There is a sealing ring on the ignition coil, which is located outside the tube body in the ignition coil. The sealing sleeve on the ignition coil serves to seal the ignition coil and the cylinder bore.

[0003] When the existing ignition coil sealing structure is in use, the sealing sleeve is inserted into the tube body from the bottom of the ignition coil, and then the sealing sleeve is moved so that the sealing sleeve is close to the mounting head. At this time, the sealing sleeve can be installed, and finally the ignition coil is inserted into the cylinder bore of the engine and fixed. However, after a long period of use, the sealing strip on the ignition coil will age and harden. In order to maintain the sealing performance, the sealing sleeve will be replaced. Since the sealing sleeve will be connected more tightly to maintain the sealing performance, it is inconvenient to install and disassemble the sealing sleeve, and the disassembly efficiency is low during replacement.

[0004] Therefore, it is necessary to invent an ignition coil sealing structure to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an ignition coil sealing structure to solve the problem that the sealing sleeve is connected tightly to maintain the sealing performance, which makes it inconvenient to install and disassemble the sealing sleeve and the disassembly efficiency is low during replacement.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ignition coil sealing structure, comprising a tube body, a mounting head is arranged on the right side of the tube body, a limiting groove is provided on the surface of the tube body, a connecting sleeve is fixedly connected to the surface of the tube body, a limiting clamping ring is fixedly connected to the front end of the connecting sleeve, the limiting clamping ring is clamped inside the limiting groove, a plurality of groups of pressing plates are fixedly connected to the rear end of the connecting sleeve, an external thread ring is provided on the surface of the pressing plate, the front end thickness of the pressing plate is less than the rear end thickness, a sealing ring is threadedly connected to the surface of the connecting sleeve, a non-slip clamping ring is fixedly connected to the rear end of the sealing ring, the inner diameter of the sealing ring is greater than the outer diameter of the connecting sleeve, and the outer diameter of the sealing ring is smaller than the inner diameter of the mounting hole.

[0007] By adopting the above technical solution, the sealing ring is set on the outside of the pipe body, and then it is threadedly connected with the connecting sleeve. During the installation process, the anti-slip clamp is held and the pipe body is rotated to make the connecting sleeve rotate inside the sealing ring. At the same time, the sealing ring moves to the rear end to squeeze the pressing sheet inward. Since the front end of the pressing sheet is thin and the rear end is thick, the pressing sheet will push the sealing ring outward during the movement of the sealing ring backward, thereby improving the connection strength between the sealing ring and the pipe body; at the same time, it is convenient to send the sealing ring into the installation hole, and use the pressing sheet to push it outward to improve the sealing strength.

[0008] Optionally, a sealing strip is fixedly connected to the inner wall of the tube body near the rear end, and a sealing groove is enclosed between the sealing strip and the inner wall of the tube body.

[0009] Optionally, a connecting pipe is fixedly connected to the front end of the mounting head, and the front end of the connecting pipe is inserted into the interior of the sealing groove.

[0010] By adopting the above technical solution, the connection sealing performance between the tank body and the mounting head is improved.

[0011] Optionally, a positioning clamp ring is fixedly connected to the surface of the connecting tube near the front end, and a positioning groove is opened on the inner wall of the tube body near the rear end, and the positioning clamp ring is clamped inside the positioning groove.

[0012] By adopting the above technical solution, the positioning clamp ring is clamped inside the positioning clamp groove, thereby improving the connection strength between the connecting pipe and the pipe body.

[0013] Optionally, two groups of ignition connection posts are provided inside the tube body, and an ignition connection spring is fixedly connected between the two groups of ignition connection posts.

[0014] Optionally, a core wire is fixedly connected to the interior of the mounting head, and a primary coil and a secondary coil are provided on both the front and rear sides of the core wire.

[0015] By adopting the above technical solution, the primary coil, the secondary coil and the core wire convert the low-voltage current output by the power supply into a high-voltage current to achieve the purpose of ignition.

[0016] Optionally, a socket is fixedly connected to the upper surface of the mounting head.

[0017] Optionally, a noise-proof resistor is provided inside the connecting tube.

[0018] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0019] The utility model is provided with a connecting sleeve fixedly connected to the surface of a tube body, and a rear end of the connecting sleeve is fixedly connected to a plurality of pressing sheets, an external threaded ring is opened on the surface of the pressing sheet, the front end thickness of the pressing sheet is smaller than the rear end thickness, the surface thread of the connecting sleeve is connected to a sealing ring, the inner diameter of the sealing ring is larger than the outer diameter of the connecting sleeve, and the outer diameter of the sealing ring is smaller than the inner diameter of the mounting hole, the sealing ring can be easily sleeved on the outer side of the connecting sleeve, and it is convenient to put the sealing ring and the tube body into the mounting hole at the same time, the tube body is rotated to rotate the connecting sleeve inwardly, and the sealing ring is stretched outwardly to seal the mounting hole, thereby improving the disassembly and assembly speed of the sealing ring, facilitating the replacement of the sealing ring, and solving the problem that the sealing sleeve is connected more tightly due to maintaining the sealing property, so it is inconvenient to install and disassemble the sealing sleeve, and the disassembly and assembly efficiency is low during replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the pipe structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the connecting sleeve structure of the utility model;

[0023] Figure 4 for Figure 2 A schematic cross-sectional structure diagram of ;

[0024] Figure 5 This is a schematic diagram of the structure of the mounting head of the utility model;

[0025] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure.

[0026] Description of reference numerals:

[0027] 1. Tube body; 11. Limiting slot; 12. Connecting sleeve; 13. Limiting clamp; 14. Pressing piece; 15. Sealing ring; 16. Anti-slip clamp; 17. Ignition connecting column; 18. Ignition connecting spring; 19. Sealing strip; 110. Positioning slot; 2. Mounting head; 21. Socket; 22. Connecting tube; 23. Positioning clamp; 24. Core wire; 25. Primary coil; 26. Secondary coil; 27. Anti-noise resistor. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] The utility model provides Figures 1 to 6The sealing structure of an ignition coil shown in the figure includes a tube body 1, a mounting head 2 is arranged on the right side of the tube body 1, a limiting groove 11 is provided on the surface of the tube body 1, a connecting sleeve 12 is fixedly connected to the surface of the tube body 1, a limiting clamping ring 13 is fixedly connected to the front end of the connecting sleeve 12, the limiting clamping ring 13 is clamped in the limiting groove 11, a plurality of groups of pressing sheets 14 are fixedly connected to the rear end of the connecting sleeve 12, an external thread ring is provided on the surface of the pressing sheet 14, the front end thickness of the pressing sheet 14 is less than the rear end thickness, a sealing ring 15 is threadedly connected to the surface of the connecting sleeve 12, a non-slip clamping ring 16 is fixedly connected to the rear end of the sealing ring 15, the inner diameter of the sealing ring 15 is larger than the outer diameter of the connecting sleeve 12, and the outer diameter of the sealing ring 15 is smaller than the inner diameter of the mounting hole.

[0030] In the process of installation, the sealing ring 15 is sleeved on the outside of the connecting sleeve 12, and then the sealing ring 15 and the tube body 1 are inserted into the inside of the installation hole at the same time, and then the anti-slip clamp 16 is clamped by hand or tools. At this time, the tube body 1 is rotated. During the rotation, the sealing ring 15 will be threadedly connected with the pressing piece 14. As the tube body 1 continues to rotate, the pressing piece 14 will continue to squeeze the inside of the sealing ring 15, expand the sealing ring 15 outward, and make the sealing ring 15 tightly connected with the tube body 1 and the installation hole; when disassembling, just rotate the tube body 1 in the opposite direction to push the pressing piece 14 out of the inside of the sealing ring 15.

[0031] See also Figure 3 and Figure 4 A sealing strip 19 is fixedly connected to the inner wall of the tube body 1 near the rear end, and a sealing groove is enclosed between the sealing strip 19 and the inner wall of the tube body 1. A connecting tube 22 is fixedly connected to the front end of the mounting head 2. The front end of the connecting tube 22 is inserted into the interior of the sealing groove. A positioning clamp ring 23 is fixedly connected to the surface of the connecting tube 22 near the front end. A positioning clamp groove 110 is opened on the inner wall of the tube body 1 near the rear end, and the positioning clamp ring 23 is clamped inside the positioning clamp groove 110.

[0032] Specifically, during the installation of the ignition coil, the connecting pipe 22 is inserted into the rear end of the pipe body 1, and the front end of the connecting pipe 22 is inserted into the interior of the sealing groove, and the positioning clamp ring 23 is inserted into the interior of the positioning clamp groove 110 to improve the connection sealing.

[0033] See also Figure 5 and Figure 6 Two groups of ignition connection columns 17 are arranged inside the tube body 1, and an ignition connection spring 18 is fixedly connected between the two groups of ignition connection columns 17. A core wire 24 is fixedly connected inside the mounting head 2, and a primary coil 25 and a secondary coil 26 are arranged on the front and rear sides of the core wire 24. A socket 21 is fixedly connected to the upper surface of the mounting head 2, and a noise-proof resistor 27 is arranged inside the connecting tube 22.

[0034] At the same time, the primary coil 25 uses a thicker enameled wire, and the enameled wire is wound with about 200-500 turns of about 0.5-1 mm; the secondary coil 26 uses a thinner enameled wire, and the enameled wire is wound with about 15000-25000 turns of about 0.1 mm. One end of the primary coil 25 is connected to the vehicle (+), and the other end is connected to the switch device (breaker). One end of the secondary coil 26 is connected to the primary coil 25, and the other end is connected to the output end to output high voltage electricity. The reason why the ignition coil can convert the low voltage electricity on the vehicle into high voltage is that when the primary coil 25 is connected to the power supply, a strong current is generated around it as the current increases, and the iron core stores it; when the switch device disconnects the circuit of the primary coil 25, the magnetic field of the primary coil 25 decays rapidly, and the secondary coil 26 will induce a very high voltage. The faster the magnetic field of the primary coil 25 disappears, the greater the current at the moment of current disconnection, and the greater the turns ratio of the two coils, the higher the voltage induced by the secondary coil 26.

[0035] The working principle of the utility model is as follows: in order to facilitate the replacement of the sealing ring 15 of the ignition coil, the sealing ring 15 is sleeved on the outside of the connecting sleeve 12, and then the sealing ring 15 and the tube body 1 are simultaneously inserted into the inside of the mounting hole, and then the anti-slip clamping ring 16 is clamped by hand or a tool, and the tube body 1 is rotated at this time. During the rotation, the sealing ring 15 will be threadedly connected with the pressing sheet 14, and as the tube body 1 continues to rotate, the pressing sheet 14 will continue to squeeze the inside of the sealing ring 15, expand the sealing ring 15 outward, and make the sealing ring 15 tightly connected with the tube body 1 and the mounting hole; when disassembling, it is only necessary to rotate the tube body 1 in the opposite direction to push the pressing sheet 14 out of the inside of the sealing ring 15, thereby facilitating the disassembly and assembly of the sealing ring 15 of the ignition coil.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An ignition coil sealing structure, comprising a tube body (1), characterized in that: A mounting head (2) is arranged on the right side of the tube body (1). A limit clamping groove (11) is provided on the surface of the tube body (1). A connecting sleeve (12) is fixedly connected to the surface of the tube body (1). A limit clamping ring (13) is fixedly connected to the front end of the connecting sleeve (12). The limit clamping ring (13) is clamped inside the limit clamping groove (11). A plurality of groups of pressing sheets (14) are fixedly connected to the rear end of the connecting sleeve (12). An external thread ring is provided on the surface of the pressing sheet (14). The thickness of the front end of the pressing sheet (14) is smaller than that of the rear end. A sealing ring (15) is threadedly connected to the surface of the connecting sleeve (12). A non-slip clamping ring (16) is fixedly connected to the rear end of the sealing ring (15). The inner diameter of the sealing ring (15) is larger than the outer diameter of the connecting sleeve (12). The outer diameter of the sealing ring (15) is smaller than the inner diameter of the mounting hole.

2. The ignition coil sealing structure according to claim 1, characterized in that: A sealing strip (19) is fixedly connected to the inner wall of the tube body (1) near the rear end, and a sealing groove is enclosed between the sealing strip (19) and the inner wall of the tube body (1).

3. The ignition coil sealing structure according to claim 2, characterized in that: A connecting pipe (22) is fixedly connected to the front end of the mounting head (2), and the front end of the connecting pipe (22) is inserted into the interior of the sealing groove.

4. The ignition coil sealing structure according to claim 3, characterized in that: A positioning clamp ring (23) is fixedly connected to the surface of the connecting tube (22) near the front end, and a positioning clamp groove (110) is provided on the inner wall of the tube body (1) near the rear end, and the positioning clamp ring (23) is clamped inside the positioning clamp groove (110).

5. The ignition coil sealing structure according to claim 1, characterized in that: Two groups of ignition connection columns (17) are arranged inside the tube body (1), and an ignition connection spring (18) is fixedly connected between the two groups of ignition connection columns (17).

6. The ignition coil sealing structure according to claim 1, characterized in that: A core wire (24) is fixedly connected inside the mounting head (2), and a primary coil (25) and a secondary coil (26) are provided on both the front and rear sides of the core wire (24).

7. The ignition coil sealing structure according to claim 1, characterized in that: A socket (21) is fixedly connected to the upper surface of the mounting head (2).

8. The ignition coil sealing structure according to claim 3, characterized in that: A noise-proof resistor (27) is provided inside the connecting tube (22).

Images