Ceramic resistor type spark plug cap of motorcycle

Abstract

The invention discloses a ceramic resistor type spark plug cap of a motorcycle. A body (1) is in an L shape and is composed of a first straight pipe (1a) and a second straight pipe (1b), wherein the first straight pipe (1a) and the second straight pipe (1b) are perpendicular to each other. A first spring (2) and a conductive cap are mounted in the first straight pipe (1a). A second spring (4), a resistor (5) and a screw (6) are mounted in the second straight pipe (1b) from inside to outside in sequence. The screw (6) is an outer hexagon self-tapping screw. The resistor (5) is composed of a ceramic rod (5a) and metal caps (5b) at the two ends of the ceramic rod (5a) in a sleeved mode. The ceramic resistor type spark plug cap of the motorcycle is simple in structure, easy to assemble and high in assembly efficiency; on one hand, assembly can be completed at normal temperature, operation workers are prevented from being scalded, residues in the body are easy to remove completely, and poor breakover of products can be prevented effectively; on the other hand, the contact area between the resistor and the spring and the contact area between the resistor and the screw are large, the contact performance is better, and the breakover performance can be further improved.

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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