Ignition device for new energy natural gas engine

Abstract

The utility model relates to an ignition device for a new energy natural gas engine, which comprises a polytetrafluoroethylene tube, a cable penetrates into the polytetrafluoroethylene tube, one end of the polytetrafluoroethylene tube extends towards one side in the vertical direction, one end of the cable penetrates into the polytetrafluoroethylene tube and then is connected with a first terminal, and one end of the first terminal is connected with a first spring. The lower end of the first spring is connected with the spark plug sheath. The other end of the cable penetrates out in the vertical direction of the polytetrafluoroethylene tube and then is connected with a second terminal, one end of the second terminal is connected with a second spring, the second terminal is sleeved with a first sheath, and the end of the second spring penetrates through the first sheath and then is exposed. A conical protrusion is arranged in the middle of the polytetrafluoroethylene pipe, and one or more sets of sealing rings are installed on the lower portion of the conical protrusion. According to the ignition device for the new energy natural gas engine, the sparking plug end of the product is of a whole polytetrafluoroethylene structure, permeation of engine oil in a limit state is effectively avoided, safe and stable operation of ignition is guaranteed, and the use safety and convenience of the whole new energy natural gas automobile are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ignition devices, in particular to an ignition device for a new energy natural gas engine. Background Art

[0002] With the continuous progress of society, the automotive industry has experienced rapid development. A car is composed of many components, of which the engine is a crucial one. Commonly used engines on the market include gasoline engines, hydrogen engines, and natural gas engines. Natural gas engines rely on ignition devices during normal use. Currently, ignition devices for new energy natural gas engines all use a traditional three-stage structure design, which generally works without problems. However, after long-term use or use in extreme environments, it has been found that the sealing of such gas engines is poor, and oil often leaks into the engine cylinder. Eventually, the oil seeps into the high-voltage wires, causing ignition failure and unusable operation, which brings inconvenience to people's stable use.

[0003] In summary, the existing new energy natural gas engine ignition device still has defects in structure and design and cannot meet people's actual use needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, an ignition device for a new energy natural gas engine is provided. The spark plug end of the product is a whole polytetrafluoroethylene structure, which can effectively avoid the infiltration of engine oil under extreme conditions, ensure the safe and stable operation of ignition, and improve the overall safety and convenience of use of new energy natural gas vehicles.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an ignition device for a new energy natural gas engine, comprising a polytetrafluoroethylene tube, a cable is passed through the polytetrafluoroethylene tube, one end of the polytetrafluoroethylene tube extends to one side in a vertical direction, one end of the cable is passed through the polytetrafluoroethylene tube and then connected to a first terminal, one end of the first terminal is connected to a first spring, and the lower end of the first spring is connected to a spark plug sheath; the other end of the cable passes through the polytetrafluoroethylene tube in a vertical direction and then is connected to a second terminal, one end of the second terminal is connected to a second spring, a first sheath is sleeved on the outer side of the second terminal, and the end of the second spring is exposed after passing through the first sheath; a conical protrusion is provided in the middle of the polytetrafluoroethylene tube, and one or more sets of sealing rings are installed under the conical protrusion.

[0006] It is further defined that, in the above technical solution, the conical protrusion and the polytetrafluoroethylene tube are an integrated structure; such a design can achieve integrity and avoid pressure penetration under extreme environments.

[0007] It is further defined that in the above technical solution, a step is provided at the end of the polytetrafluoroethylene tube close to where the cable passes through, a pressure plate is provided at the lower part of the step, and a cylinder mouth sheath is provided at the lower part of the pressure plate; such a design facilitates subsequent sealing assembly connection.

[0008] It is further defined that, in the above technical solution, the step and the polytetrafluoroethylene tube are an integrated structure; such a design can achieve integrity and avoid pressure penetration under extreme environments.

[0009] It is further defined that, in the above technical solution, a second sheath is clamped inside the cylinder mouth sheath to further improve the sealing performance.

[0010] It is further defined that, in the above technical solution, the pressure plate, the cylinder mouth sleeve and the second sleeve are sequentially sleeved on the outer wall of the polytetrafluoroethylene tube.

[0011] The beneficial effects of the present invention are as follows: the present invention proposes an ignition device for a new energy natural gas engine, in which the spark plug end is a whole piece of polytetrafluoroethylene structure, which can effectively avoid the infiltration of engine oil under extreme conditions, ensure the safe and stable operation of the ignition, and improve the overall safety and convenience of new energy natural gas vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a structural diagram of a traditional ignition structure;

[0014] Attachment Figure 1 The numbers in the figure are: A, polytetrafluoroethylene tube, B, first sheath, C, first terminal, D, resistor, E, first spring, F, spark plug sheath, G, cable, H, second terminal, I, second sheath, J, second spring, K, pressure plate, L, third sheath, M, cylinder port sheath, N, insulating tube.

[0015] Figure 2 It is a structural diagram of the present utility model.

[0016] Attachment Figure 2The numbers in the assembly are: 1. PTFE tube, 2. Cable, 3. First terminal, 4. First spring, 5. Spark plug sleeve, 6. Second spring, 7. First sleeve, 8. Conical protrusion, 9. Sealing ring, 10. Step, 11. Pressure plate, 12. Cylinder mouth sleeve, 13. Second sleeve, 14. Second terminal. DETAILED DESCRIPTION

[0017] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] In this application, the spark plug sheath 5 is filled with silicone grease, see the attached Figure 2 The first terminal 3, the second terminal 14, the first spring 4 and the second spring 6 are purchased directly from the market according to specific models and then matched and installed for use.

[0019] See Figure 2 The figure shows an ignition device for a new energy natural gas engine, including a polytetrafluoroethylene tube 1, a cable 2 is passed through the polytetrafluoroethylene tube 1, one end of the polytetrafluoroethylene tube 1 extends to one side in the vertical direction, one end of the cable 2 is passed through the polytetrafluoroethylene tube 1 and connected to a first terminal 3, one end of the first terminal 3 is connected to a first spring 4, and the lower end of the first spring 4 is connected to a spark plug sheath 5; the other end of the cable 2 passes through the polytetrafluoroethylene tube 1 in the vertical direction and is connected to a second terminal 14 at the rear end, one end of the second terminal 14 is connected to a second spring 6, a first sheath 7 is sleeved on the outside of the second terminal 6, and the end of the second spring 6 is exposed after passing through the first sheath 7; a conical protrusion 8 is provided in the middle of the polytetrafluoroethylene tube 1, and one or more sets of sealing rings 9 are installed at the lower part of the conical protrusion 8.

[0020] The conical protrusion 8 is integral with the PTFE tube 1. A step 10 is provided at the end of the PTFE tube 1, near where the cable 2 exits. A pressure plate 11 is located below the step 10, and a cylinder port cover 12 is located below the pressure plate 11. The step 10 is integral with the PTFE tube 1. A second cover 13 is secured within the cylinder port cover 12. The pressure plate 11, cylinder port cover 12, and second cover 13 are sequentially sleeved onto the outer wall of the PTFE tube 1.

[0021] The ignition device for the new energy natural gas engine of the present application has the following advantages over the traditional ignition device: the use of an integrated polytetrafluoroethylene tube structure can improve its overall sealing, avoid the occurrence of flameout caused by pressure penetration of engine oil, and improve the ignition success rate of the overall ignition device.

[0022] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ignition device for a new energy natural gas engine, characterized by: The invention comprises a polytetrafluoroethylene tube, wherein a cable is passed through the polytetrafluoroethylene tube, one end of the polytetrafluoroethylene tube extends to one side in a vertical direction, one end of the cable is passed through the polytetrafluoroethylene tube and connected to a first terminal, one end of the first terminal is connected to a first spring, and the lower end of the first spring is connected to a spark plug sheath; the other end of the cable passes through the polytetrafluoroethylene tube in a vertical direction and is connected to a second terminal at the rear end, one end of the second terminal is connected to a second spring, a first sheath is sleeved on the outer side of the second terminal, and the end of the second spring is exposed after passing through the first sheath; a conical protrusion is provided in the middle of the polytetrafluoroethylene tube, and one or more sealing rings are installed under the conical protrusion.

2. The ignition device for a new energy natural gas engine according to claim 1, characterized in that: The conical protrusion and the polytetrafluoroethylene tube are an integrated structure.

3. The ignition device for a new energy natural gas engine according to claim 1, characterized in that: A step is provided at one end of the polytetrafluoroethylene tube close to where the cable passes through, a pressing plate is provided at the lower part of the step, and a cylinder mouth sheath is provided at the lower part of the pressing plate.

4. The ignition device for a new energy natural gas engine according to claim 3, characterized in that: The step and the polytetrafluoroethylene tube are an integrated structure.

5. The ignition device for a new energy natural gas engine according to claim 3, characterized in that: A second sheath is clamped in the cylinder mouth sheath.

6. The ignition device for a new energy natural gas engine according to claim 5, characterized in that: The pressing plate, the cylinder mouth protective sleeve and the second protective sleeve are sequentially sleeved on the outer wall of the polytetrafluoroethylene tube.

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