STACK VOLTAGE MONITORING DEVICE

摘要

PURPOSE: An apparatus for monitoring a stack voltage is provided to detect a bad cell according to a reference voltage value of a unit cell without measuring each of voltages of unit cells with the naked eye by using a simple structure. CONSTITUTION: A stack voltage monitoring apparatus(100) for measuring the amount of electric outputs from output unit cells(C) of a fuel cell stack includes a body(10), a controller(30), and a plurality of lamps(50). The body includes a plurality of connective terminals(11) which are electrically connected with a separate plate terminal(P) of each of the unit cells. The controller is electrically connected to connection terminals as an electrical signal system. The lamps corresponds to each of the connection terminals, receives a control signal from the controller according to the reference voltage of each of the unit cells, and selectively emits the light. The lamps are formed with LEDs.