SHUNT RESISTANCE TYPE CURRENT SENSOR

摘要

A shunt resistance type current sensor includes a bus bar, a circuit board, voltage detection terminals and a voltage detector for detecting a magnitude of voltage applied to the bus bar. The bus bar is constituted of a through hole to be connected to a battery post, a through hole to be connected to a stud bolt for fixing a wire harness, and a shunt resistance part located between the through hole for the battery post and the through hole for the wire harness. The bus bar is configured so that an area including the through hole and an area including the through hole are formed in a stepped manner via a bent part.

主权项

1. A shunt resistance type current sensor, comprising:
a bus bar which includes a first connection part to be connected to a battery post, a second connection part to be connected to a stud bolt for fixing a wire harness, and a shunt resistance part which is located between the first connection part and the second connection part and acts as a path of current to be measured; a circuit board which is disposed so as to oppose the bus bar; a pair of terminals which electrically connect the bus bar and the circuit board; and a voltage detector which is mounted on the circuit board and detects a magnitude of voltage applied between the pair of terminals in order to detect an amount of current to be measured flowing through the bus bar, wherein the bus bar is configured so that an area including the second connection part and an area including the first connection part are formed in a stepped manner via a bent part, and the second connection part is set at a position lower than an upper surface of the first connection part.