A ceramic resistance type motorcycle spark plug cap

Abstract

The invention discloses a ceramic resistance spark plug cap for motorcycles. The main body (1) is "L" shaped and consists of a first straight pipe (1a) and a second straight pipe (1b) perpendicular to each other. Install the first spring (2) and conductive cap (3) in (1a), install the second spring (4), resistance (5) and screw (6) in the second straight pipe (1b) from the inside to the outside in sequence, and the screw ( 6) is an external hexagonal self-tapping screw, and the resistance (5) is composed of a ceramic rod (5a) and a metal cap (5b) sleeved on both ends of the ceramic rod (5a). The invention is simple in structure, easy to assemble, and has high assembly efficiency. On the one hand, the assembly can be completed at normal temperature, avoiding the operator from being scalded, and the residue in the body is easy to clean up, which can effectively prevent poor conduction of the product; on the other hand, The resistance has a large contact area with the spring and the screw, and the contact performance is better, which can further improve the conduction performance.

Description

technical field [0001] The invention relates to a motorcycle component, in particular to a ceramic resistance spark plug cap on a motorcycle engine. Background technique [0002] The ceramic resistance spark plug cap is an important part of the motorcycle engine. It is used to connect the high-voltage line and the spark plug. Its quality directly affects the starting performance of the engine. Existing ceramic resistive motorcycle spark plug caps are generally composed of a body, a spring, a conductive cap, a resistor and screws, and generally have the following deficiencies: [0003] 1) The conductive cap is fixed in the body by interference fit, which is inconvenient to disassemble and assemble, and the assembly efficiency is low; [0004] 2) The screw has a round head structure and must be assembled in a hot state (about 150°C) at a high temperature. After cooling, the screw will not rotate in the body; not only that, but the assembly of other parts is also carried out i...

AI Technical Summary

Problems solved by technology

[0003] 1) The conductive cap is fixed in the body with interference fit, which is inconvenient to disassemble and assemble, and the assembly efficiency is low;

[0004] 2) The screw has a round head structure and must be assembled in a hot state (about 150°C) at a high temperature. After cooling, the screw will not rotate in the body; not only that, but the assembly of other parts is also carried out in a hot state. On the one hand, the assembly The process is complicated, the assembly operation is inconvenient, and the operator is easy to burn his hands; on the other hand, the residue in the body is not easy to clean up, which may easily cause poor conduction of the product;

[0005] 3) One end of the resistor is in contact with the spring, and the other end is in contact with the screw. The contact performance between the end surface of the resistor and the screw is not good, and there may be a non-conduction phenomenon; at the same time, the contact surface between the resistor and the spring is small, and the reliability of the spring positioning is relatively low. Poor, prone to skewing, resulting in poor continuity between the spring and the resistor

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