GAS-CONTROLLED BATTERY CHARGING DEVICE FOR DRIVERLESS TRANSPORT VEHICLE

• Main Author: EIJI HOSOBUCHI
• Format: Patent
• Language: English
• Published: 30.09.1997
• Subjects: 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; 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

AN AUTOMATIC BATTERY CHARGING APPARATUS FOR DRIVERLESS TRANSPORT VEHICLE IS PRESENTED SO AS TO ENABLE DISCONNECTING THE CHARGING SOURCE FROM THE BATTERIES WHEN A CERTAIN PRESSURE IS REACHED IN THE INTERIOR OF AT LEAST ONE BATTERY. A PRESSURE SENSOR PROVIDED INSIDE THE BATTERY IS SET SO THAT THE CONTACT OF A RELAY OPENS WHEN A CERTAIN INTERIOR PRESSURE WHICH IS LOWER THAN THE ACTIVATING PRESSURE FOR A SAFETY VALVE PROVIDED ON THE BATTERY. THIS PREVENTS AN EXCESSIVE PRESSURE BUILD UP IN THE BATTERY INTERIOR CAUSED, FOR EXAMPLE, BY A ACCIDENTAL OVER-CHARGING, WHICH WOULD RELEASE DAMAGING GASES AND CORROSIVE VAPORS FROM THE OVER-CHARGED BATTERY TO THE OUTSIDE ENVIRONMENT. (FIG. 1)