High-flow current capacity contact and vacuum interrupter applied therefor

A high-flow current capacity contact, comprising:

• a static contact combination (201) and a dynamic contact combination (202), wherein:
• the static contact (201) comprises a static excitation contact base (102), wherein a center on a first plane of the static excitation contact base (102) is coaxially connected with a static conducting rod (101), and an end of a circular column on a second plane of the static excitation contact base (102) is coaxially connected with a static contact blade (104);
• a plurality of static terminal extending through-flow structures (301) extending towards a center of the static excitation contact base are uniformly provided on the circular column of the static excitation contact base (102) in integrity;
• an ending plane of the plurality of static terminal extending through-flow structures (301) protrudes a circular end plane of the static excitation contact base (102), end portions of the plurality of the static terminal extending through-flow structures (301) are fixedly connected with the static contact blade (104);
• a static stainless-steel supporter (103) is coaxially provided in the circular column of the static excitation contact base (102), a plurality of static grooves (401) are uniformly opened on the static stainless-steel supporter (103), positions and sizes of the static grooves (401) enable the static terminal extending through-flow structures (301) to be putted in, but sizes of the static grooves (401) are greater than sizes of the static terminal extending through-flow structures (301), in such a manner that the static terminal extending through-flow structures (301) are not in contact with the static stainless-steel supporter (103) to form a through-flow gap;
• the static stainless-steel supporter (103) is not fixedly connected with the static contact blade (104);
• the dynamic contact combination (202) comprises a dynamic excitation contact base (107), wherein a center on a first plane of the dynamic excitation contact base (107) is coaxially connected with a dynamic conducting rod (108), and an end of a circular column on a second plane of the dynamic excitation contact base (107) is coaxially connected with a dynamic contact blade (105);
• a plurality of dynamic terminal extending through-flow structures (302) extending towards a center of the dynamic excitation contact base are uniformly provided on the circular column of the dynamic excitation contact base (107) in integrity;
• an ending plane of the plurality of dynamic terminal extending through-flow structures (302) protrudes a circular end plane of the dynamic excitation contact base (107), end portions of the plurality of the dynamic terminal extending through-flow structures (302) are fixedly connected with the dynamic contact blade (105);
• a dynamic stainless-steel supporter (106) is coaxially provided in the circular column of the dynamic excitation contact base (107), a plurality of dynamic grooves (402) are uniformly opened on the dynamic stainless-steel supporter (106), positions and sizes of the dynamic grooves (402) enable the dynamic terminal extending through-flow structures (302) to be putted in, but sizes of the dynamic grooves (402) are greater than sizes of the dynamic terminal extending through-flow structures (302), in such a manner that the dynamic terminal extending through-flow structures (302) are not in contact with the static stainless-steel supporter (103) to form a through-flow gap;
• the dynamic stainless-steel supporter (106) is not fixedly connected with the dynamic contact blade (105);
• the static contact blade (104) are in opposite position with the dynamic contact blade, and grooves opening positions of the static contact blade (104) correspond to grooves opening positions of the dynamic contact blade (105);
• the grooves opening positions of the static contact blade (104) are aligned with an protruding position edge of the static terminal extending through-flow structures (301) on the static excitation contact base (102);
• and the grooves opening positions of the dynamic contact blade (105) are aligned with an protruding position edge of the dynamic terminal extending through-flow structures (302) on the dynamic excitation contact base (107).