BATTERY CHARGING DEVICE FOR UNMANNED CONVEYING VEHICLE

• Main Author: HOSOBUCHI EIJI
• Format: Patent
• Language: English
• Published: 18.03.1994
• Edition: 5
• 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

PURPOSE:To eliminate the operation of a safety valve and prevent the indoor discharge of gas by detecting that the internal pressure of an alkaline battery exceeds a fixed value with an internal pressure sensor, and stopping an automatic charge. CONSTITUTION:When the internal pressure of an alkaline battery 10 exceeds the fixed pressure lower than the release pressure of a safety valve 11, an internal pressure detecting sensor 12 outputs a detection signal. When the signal is sent from the sensor 12, an automatic charge is stopped, the safety valve 11 is not operated, and the gas and alkali in the battery 10 are not discharged indoors or to the outside. The fixed pressure lower than the release pressure is determined in consideration of the internal pressure rise during the period until the chemical reaction and electrochemical reaction are stopped after the charge is stopped. When the internal pressure exceeds the fixed value, a contact SW1 provided in the sensor 12 is turned off, and the automatic charge is stopped.