×

System and method for independently controlling relay, using bimetal

  • US 10,446,352 B2
  • Filed: 08/30/2016
  • Issued: 10/15/2019
  • Est. Priority Date: 11/17/2015
  • Status: Active Grant
First Claim
Patent Images

1. A system for independently controlling a relay in a circuit, the system comprising:

  • a micro controller unit (MCU) configured to output a signal when a current value on the circuit is more than a predetermined threshold;

    a signal inversion unit configured to;

    receive the signal directly from the MCU, andinvert and amplify the signal output from the MCU; and

    a switching unit configured to;

    receive the inverted and amplified signal directly from the signal inversion unit, andapply a specific current directly to a bimetal unit based on the signal output from the signal inversion unit,wherein the bimetal unit is configured to receive the specific current directly from the switching unit and is connected with the relay provided in the circuit,wherein the bimetal unit includes;

    a heating unit generating heat by the specific current, anda bimetal, the bimetal being configured to be bent in one direction by the heat,wherein the heating unit is directly connected with the bimetal,wherein the system further comprises a fuse unit provided between the bimetal unit and the relay and having an inner part configured to be disconnected by the heat generated from the heating unit, andwherein the MCU outputs the signal, the bimetal unit is shape-transformed by the specific current applied from the switching unit to change a state of the relay from an on state to an off state to reduce a magnetic force of a relay coil of the relay and to block current flowing from a battery to the relay.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×