Fuse link, fuse and electric device

The invention relates to a fuse link, a fuse and a power utilization device, the fuse link comprises a first fuse link and a second fuse link, at least one end of the first fuse link is used for connecting a fuse terminal, and a first narrow diameter part is formed on the first fuse link; two ends of the second fuse link are respectively used for connecting fuse terminals, and a second narrow diameter part is formed on the second fuse link; the cross-sectional area of the first narrow portion is smaller than the cross-sectional area of the second narrow portion. The fuse link can withstand high voltage while guaranteeing relatively high current resistance, and has relatively high breaking capacity. 本公开涉及一种熔断体、熔断器和用电装置，该熔断体包括第一熔断体和第二熔断体，第一熔断体的至少一端用于连接熔断器端子，第一熔断体形成有第一狭径部；第二熔断体的两端分别用于连接熔断器端子，第二熔断体形成有第二狭径部；第一狭径部的截面积小于第二狭径部的截面积。该熔断体在保障较强的耐流能力的同时，还可以耐受高电压，具有较强的分断能力。