Patent ID: 9607798
Date: 2017-03-28
CPC Classifications: H01H

Claim:
1. A fuse unit comprising: a bus bar that includes a plurality of fusible parts extending from a power supply side terminal to a plurality of load side terminals; and an insulating resin portion that is formed by insert molding using the bus bar as an insert component, wherein the insulating resin portion includes: a first resin portion that is arranged at a periphery on a side of the power supply side terminal with respect to the fusible parts; a second resin portion that is arranged at a periphery on a side of the load side terminals with respect to the fusible parts; and a plurality of coupling portions that couple the first resin portion and the second resin portion at positions outside each of the fusible parts, each of the coupling portions is formed such that a reinforcement portion having a lower heat shrinkage rate than the insulating resin portion and having a higher strength than the insulating resin portion is an insert component such that there is a plurality of the reinforcement portions, each of the reinforcement portions is arranged apart from the fusible parts such that each of the fusible parts does not extend via any of the reinforcement portions from the power supply side terminal, the reinforcement portions are arranged along the fusible parts, and the reinforcement portions extend beyond middles of the fusible parts from the power supply side terminal toward the load side terminals.