Series clearance multi-point discharging sparking plug

A series clearance multi-point discharging spark plug, comprising a wiring screw (1);

• wherein the wiring screw (1) is arranged in an insulator (2);
• the insulator (2) is riveted in a shell (3);
• a central electrode (4) is arranged in a tip of the insulator (2);
• a built-in damping resistor (5) is arranged between the central electrode (4) and the wiring screw (1);
• a ceramic multi-point discharging ignition table (6) fitted with the insulator (2) is arranged at a bottom of the insulator (2);
• a cavity assembly is formed between the ceramic multi-point discharging ignition table (6) and the insulator (2);
• an outer wall at an upper end of the ceramic multi-point discharging ignition table (6) is fastened to the shell (3);
• an ignition electrode assembly is arranged at the bottom of the ceramic multi-point discharging ignition table (6);
• the cavity assembly comprises a positive-pole high-voltage connecting cavity (7);
• the bottom of the insulator (2) extends to the ceramic multi-point discharging ignition table (6);
• the positive-pole high-voltage connecting cavity (7) is arranged between the bottom of the insulator (2) and the ceramic multi-point discharging ignition table (6);
• the bottom of the central electrode (4) extends from the insulator (2);
• the bottom of the positive-pole high-voltage connecting cavity (7) is provided with a positive-pole high-voltage electrode connecting line (8) fitted with the bottom of the central electrode (4);
• the positive-pole high-voltage electrode connecting line (8) is arranged in the ceramic multi-point discharging ignition table (6);
• or
• the cavity assembly comprises a labyrinth type positive-pole high-voltage connecting cavity (9) and a labyrinth type positive-pole high-voltage electrode connecting line (10);
• the bottom of the insulator (2) extends to the ceramic multi-point discharging ignition table (6);
• the labyrinth type positive-pole high-voltage connecting cavity (7) is arranged between the bottom of the insulator (2) and the ceramic multi-point discharging ignition table (6);
• a lug boss (11) is arranged in a central position of the labyrinth type positive-pole high-voltage connecting cavity (9);
• the lug boss (11) extends to the bottom of the insulator (2);
• the labyrinth type positive-pole high-voltage electrode connecting line (10) is arranged in the central position of the lug boss (11);
• the labyrinth type positive-pole high-voltage electrode connecting line (10) is fitted with the bottom of the central electrode (4);
• the labyrinth type positive-pole high-voltage electrode connecting line (10) is arranged in the ceramic multi-point discharging ignition table (6);
• the lug boss (11) and the ceramic multi-point discharging ignition table (6) are integrally distributed;
• the ignition electrode assembly comprises a grounding electrode (13) and a positive electrode (15);
• the positive electrode (15) is connected with the positive-pole high-voltage electrode connecting line (8) or the labyrinth type positive-pole high-voltage electrode connecting line (10);
• a discharging ignition clearance (16) is formed between the grounding electrode (13) and the positive electrode (15);
• the grounding electrode (13) and the positive electrode (15) are communicated respectively through a built-in electrode connecting line (17);
• or
• the ignition electrode assembly comprises a positive electrode I (19), at least one bridging electrode (20) and a grounding electrode I (21);
• the positive electrode I (19) is connected with the positive-pole high-voltage electrode connecting line (8) or the labyrinth type positive-pole high-voltage electrode connecting line (10);
• the positive electrode I (19) and the bridging electrode (20) are communicated respectively through a built-in electrode connecting line I (22);
• discharging ignition clearances I (23) are respectively formed between the positive electrode I (19) and the bridging electrode (20) and between the grounding electrode I (21) and the bridging electrode (20);
• the grounding electrode (13) and the grounding electrode I (21) are respectively contacted with the shell;
• and the built-in electrode connecting line (17) and the built-in electrode connecting line I (22) are arranged in the ceramic multi-point discharging ignition table (6).