High-voltage ignition wire device of engine

Abstract

A high-voltage ignition wire device of an engine comprises a leading-in end connected with a leading-in wire. The other side, opposite to the lead-in wire, of the lead-in end is provided with a damping wire, and the side, away from the lead-in end, of the damping wire is provided with a plugging end used for plugging a spark plug. An outer protective shell is arranged on the outer side of the damping wire, and a protruding abutting part abutting against a cylinder sleeve of the engine is arranged on the outer protective shell. According to the invention, the external protection shell is used for protecting the internal damping wire, then the protruding abutting part arranged on the external protection shell is used for abutting against the external protection shell, and a simply supported beam structure is formed by adopting the structure, so that the relative vibration of the plugging end and the spark plug can be greatly reduced, and the stability of the spark plug is improved. And the high-voltage creepage risk caused by vibration and loosening of the binding surface of the rubber sheath in the plugging end and the spark plug is reduced.

Description

Technical Field

[0001] The application relates to a high-voltage ignition wire device for an engine. Background Art

[0002] The engine high-voltage ignition wire conducts the high-voltage electrical energy generated by the ignition coil to the spark plug for ignition in the engine cylinder, thereby allowing the engine to work. It is a "wire" with an "insulation" device. Its structure is not complicated. A layer of high-strength insulator is wrapped on the outside of the internal metal wire through the production process; the high-voltage ignition wire can have good insulation and internal transmission and conductive functions at high and low temperatures. The high-voltage ignition wire currently used is installed on the engine to form a cantilever beam structure with a fixed upper end in the sleeve. When the engine is working, the free end of the cantilever beam structure and the spark plug will form a relatively strong vibration at the close fit, causing the fitting surface to loosen and generate high-voltage creepage. Utility Model Content

[0003] In order to solve the above problems, the present application proposes an engine high-voltage ignition wire device, including an introduction end connected to the introduction wire; a damping wire is arranged on the other side of the introduction end relative to the introduction wire, and a plug-in end for plugging in a spark plug is arranged on the side of the damping wire away from the introduction end; an outer protective shell is arranged on the outside of the damping wire, and a raised abutting portion abutting against the cylinder sleeve of the engine is arranged on the outer protective shell. The present application adopts an outer protective shell to protect the internal damping wire, and then utilizes the raised abutting portion arranged on the outer protective shell to abut against the outer protective shell. This structure is used to form a simply supported beam structure, which can greatly reduce the relative vibration between the plug-in end and the spark plug, and reduce the risk of high-voltage creepage caused by the vibration and loosening of the rubber sheath inside the plug-in end and the fitting surface of the spark plug.

[0004] Preferably, the raised abutment portion is a ring-shaped raised block with no less than three raised blocks.

[0005] Preferably, the raised abutment is an annular rib. Whether the raised abutment of the present application is a convex block or an annular rib structure, it can play a role of abutment and fixing, so that the outer protective shell itself can better protect the internal damping line and avoid vibration.

[0006] Preferably, the number of the raised abutting portions is not less than two.

[0007] Preferably, the outer cross-sectional area of ​​the outer protective shell increases gradually from the introduction end to the plug-in end.

[0008] Preferably, the outer protective shell includes several sections of connecting pipes connected end to end, the cross-sectional area of ​​the same connecting pipe is the same, and the cross-sectional areas of adjacent connecting pipes are gradually increased so that the outer cross-sectional area of ​​the outer protective shell gradually increases from the introduction end to the plug end. The present application adopts a stepped outer protective shell, which has better stability during the assembly process with the cylinder sleeve.

[0009] Preferably, a protruding abutment portion is provided on the outside of the connecting pipe with the smallest cross-sectional area and the outside of the connecting pipe with the largest cross-sectional area, respectively.

[0010] Preferably, a sleeve ring is further provided at a position on the introduction end corresponding to the cylinder sleeve, and an abutment plate is provided at a position on the sleeve ring corresponding to the introduction end.

[0011] This application can bring the following beneficial effects:

[0012] 1. The present application adopts an outer protective shell to protect the internal damping wire, and then utilizes the raised abutting portion provided on the outer protective shell to abut against the outer protective shell. This structure is used to form a simply supported beam structure, which can greatly reduce the relative vibration between the plug-in end and the spark plug, and reduce the risk of high-voltage creepage caused by vibration and loosening of the rubber sheath inside the plug-in end and the fitting surface of the spark plug.

[0013] 2. The raised abutment portion of the present application, whether it is a convex block or an annular rib structure, can play an abutment and fixing role, so that the outer protective shell itself can better protect the internal damping line and avoid vibration.

[0014] 3. The present application adopts a stepped outer protective shell, which has better stability during assembly with the cylinder sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 Schematic diagram of the cross section of the damping line part. DETAILED DESCRIPTION

[0018] In order to clearly illustrate the technical features of the present solution, the present application is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0019] In the first embodiment, if Figure 1As shown, an engine high-voltage ignition wire device includes an introduction end 2 connected to an introduction wire 1; a damping wire 3 is arranged on the other side of the introduction end 2 relative to the introduction wire 1, and a plug-in end 5 for plugging in a spark plug 4 is arranged on the side of the damping wire 3 away from the introduction end 5; an outer protective shell 6 is arranged on the outer side of the damping wire 3, and a protruding abutting portion 8 is arranged on the outer protective shell 6 to abut against a cylinder sleeve 7 of the engine.

[0020] When in use, connect the external lead-in wire 1 to the lead-in end 2, sleeve the outer protective shell 6 on the outside of the damping wire 3, and plug the spark plug 4 into the plug-in end 5; then insert the application into the cylinder sleeve 7 of the engine so that the raised abutment part 8 is abutted against the cylinder sleeve 7, thereby completing the positioning and installation of the outer protective shell 6 to avoid vibration during use.

[0021] In the second embodiment, if Figure 1-2 As shown, an engine high-voltage ignition wire device includes an introduction end 2 connected to an introduction wire 1; a damping wire 3 is arranged on the other side of the introduction end 2 relative to the introduction wire 1, and a plug-in end 5 for plugging in a spark plug 4 is arranged on the side of the damping wire 3 away from the introduction end 5; an outer protective shell 6 is arranged on the outer side of the damping wire 3, and a raised abutting portion 8 is arranged on the outer protective shell 6 to abut against the cylinder sleeve 7 of the engine. The raised abutting portion 8 is an annularly arranged convex block with no less than three raised abutting portions. The raised abutting portion 8 is an annular rib. The number of the raised abutting portions 8 is no less than two. The outer cross-sectional area of ​​the outer protective shell 6 is gradually increased from the introduction end 2 to the plug-in end 5. The outer protective shell 6 includes a plurality of connecting pipes 9 connected end to end, the cross-sectional area of ​​the same connecting pipe 9 is the same, and the cross-sectional areas of adjacent connecting pipes 9 are gradually increased so that the outer cross-sectional area of ​​the outer protective shell 6 gradually increases from the introduction end 2 to the plug-in end 5. The outer part of the connecting pipe 9 with the smallest cross-sectional area and the outer part of the connecting pipe 9 with the largest cross-sectional area are respectively provided with a raised abutment part 8. A sleeve ring 10 is also provided at the position corresponding to the cylinder sleeve 7 on the introduction end 2, and an abutment plate 11 is provided at the position corresponding to the introduction end 2 of the sleeve ring 10.

[0022] When in use, the external lead-in wire 1 is connected to the lead-in end 2, the outer protective shell 6 is sleeved on the outside of the damping wire 3, and the spark plug 4 is plugged into the plug-in end 5; then the present application is inserted into the cylinder sleeve 7 of the engine so that the raised abutment portion 8 is abutted against the cylinder sleeve 7, and the top of the cylinder sleeve 7 is sleeved on the sleeve ring 10 and abutted against the abutment plate 11, thereby completing the positioning and installation of the outer protective shell 6. Since at least two raised abutment portions 8 are provided, the stability of the structure itself is stronger, thereby avoiding vibration during use.

[0023] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. An engine high voltage ignition wire device, Features: It comprises an introduction end connected to the introduction wire; a damping wire is arranged on the other side of the introduction end relative to the introduction wire, and a plug-in end for plugging in a spark plug is arranged on the side of the damping wire away from the introduction end; an outer protective shell is arranged on the outer side of the damping wire, and a raised abutting portion abutting against the cylinder sleeve of the engine is arranged on the outer protective shell.

2. An engine high voltage ignition wire device as claimed in claim 1, Features: The raised abutting portion is a ring-shaped raised block with no less than three raised blocks.

3. An engine high voltage ignition wire device as claimed in claim 1, Features: The raised abutting portion is an annular rib.

4. An engine high voltage ignition wire device as claimed in claim 1, Features: The number of the raised abutting portions is not less than two.

5. An engine high voltage ignition wire device as claimed in claim 4, Features: The outer cross-sectional area of ​​the outer protective shell is gradually increased from the introduction end to the plug-in end.

6. An engine high voltage ignition wire device as claimed in claim 5, Features: The outer protective shell includes several sections of connecting pipes connected end to end. The cross-sectional area of ​​the same connecting pipe is the same, and the cross-sectional areas of adjacent connecting pipes gradually increase so that the outer cross-sectional area of ​​the outer protective shell gradually increases from the introduction end to the plug end.

7. An engine high voltage ignition wire device as claimed in claim 6, Features: The outside of the connecting pipe with the smallest cross-sectional area and the outside of the connecting pipe with the largest cross-sectional area are respectively provided with protruding abutting portions.

8. An engine high voltage ignition wire device as claimed in claim 1, Features: A sleeve ring is also arranged at a position on the introduction end corresponding to the cylinder sleeve, and an abutment plate is arranged at a position on the sleeve ring corresponding to the introduction end.

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