SAFETY APPARATUS AND PROTECTION METHOD OF SECONDARY BATTERY FOR ELECTRIC VEHICLE USING SWITCH

PROBLEM TO BE SOLVED: To provide a safety apparatus and a protection method of a secondary battery using a switch, capable of preventing explosion and fire due to rupture and exhaust of harmful gas due to a phenomenon in which an internal pressure of the secondary battery increases to cause swelling...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JANG SOOYEUP, OH JEONKEUN
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a safety apparatus and a protection method of a secondary battery using a switch, capable of preventing explosion and fire due to rupture and exhaust of harmful gas due to a phenomenon in which an internal pressure of the secondary battery increases to cause swelling under the conditions of overcharge, short-circuit and heat-exposure when using the secondary battery for an electric vehicle.SOLUTION: A safety apparatus comprises: a secondary battery 110 for an electric vehicle having at least one secondary battery stacked to supply power to the electric vehicle; a drive motor 140 for generating power of the electric vehicle; a battery controller 80 for controlling a connection between the secondary battery 110 for the electric vehicle and the drive motor 140 and the power of the drive motor 140; and a switch apparatus of the secondary battery for the electric vehicle and a rupture switch 90-1 connected to the battery controller 80 and actuated or destroyed when the secondary battery 110 for the electric vehicle undergoes a displacement equal to or greater than a prescribed value, wherein the switch apparatus of the secondary battery 110 and the rupture switch 90-1 control a relay connecting the secondary battery 110 with the drive motor 140.