Direct-current storage battery charging device and charging method

• Main Authors: REN HONGTAO, WEI XIANGUANG, WU HAIFENG
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention provides a direct-current storage battery charging device which comprises a power supply connecting structure, a storage battery charging interface and a single-phase three-winding transformer, three windings of the single-phase three-winding transformer are a first winding, a second winding and a third winding respectively, the dotted terminal of the first winding is connected with the positive electrode of the power supply connecting structure, and the dotted terminal of the second winding is connected with the negative electrode of the power supply connecting structure. The negative electrode of the power supply connecting structure and the dotted terminal of the second winding are grounded; the synonym terminal of the third winding is connected with the negative electrode of the storage battery charging interface; the charging power supply is easy to obtain, the commercial power can be simply rectified, and the battery pack can be used as the charging power supply to charge the high-voltage