国家/地区 中国（3）
IPC部 H（3）
IPC大类 H01（2）
IPC小类 H01H（2）
IPC
发明人 HAO L（2） LI K（2） MIAO X（2）
公开年 2022（3）
申请年 2022（2） 
专利权人 PINGGAO GROUP CO LTD（3）

Copper tungsten contact comprises copper powder, tungsten powder and graphene, where tungsten powder includes first tungsten powder and second tungsten powder.

HAO L, SUN K, DUAN X, HUANG J, HOU M, PENG X, CHEN W, FANG B, SUN Y, WEI J, LI K, MIAO X, LI M, YANG X, LI W, LV J, ZHANG C

Air box assembly has gas box, whose top unit is set with opening, opening is hermetically installed with sealing gas bag, sealed airbag, and inner cavity communicates with air box, sealing airbag connects with inlet sleeve pipe, and sleeve pipe outlet.

GUO P, ZHU K, HU K, WANG T, FAN J, GAO Z, YAN Z, ZHANG M, ZHANG H, GUO Y, QIN Y, NIU P, GAO S, ZHAO H, HOU B

Arc contact for switch has e.g. fixed conductive segment, wear-resistant contact section and arc strike section, fixed conductive section is used to fix arc contacts for switches, where the wear-resistant contact section and arc striking section are made of copper-tungsten alloy material.

YANG Z, LI Y, WANG Z, YUAN G, YUN F, ZHENG Y, HAN L, FAN Y, PANG Y, LI K, HAO L, MIAO X