| 摘要 |
The present invention relates to a battery case into which a battery is inserted in one direction, and more particularly, to a battery case formed in a multi-step, in which a plurality of batteries are arranged. The battery case (10) is cylindrical shaped. The battery case (10) includes a top plate (100) having an upper portion in which + connecting terminal (110) and - connecting terminal (120) are formed and a lower portion in which + terminal (102) is formed; a middle plate (200) having - terminal (201) in an upper portion and + terminal (202) in a lower portion; a lower plate (300) having - terminal (301) in an upper portion and - connecting terminal (310) in a lower portion; supports (400) arranged in a triangular shape and connecting the upper, middle and lower plates (100, 200 and 300) integrally to each other; and a battery entrance (500) into which a plurality of batteries (600) are inserted in parallel between the supports (400) to be connected to the + and - terminals (102, 202, 201 and 301) of the upper, middle and lower plates (100, 200 and 300). At least three among the inserted batteries (600) are wired to be connected in series to each other by a wire (g), so that only + current is applied to the three batteries (600) connected in series to each other, and - current is applied to the remaining three batteries (600) connected in series to each other. Since the batteries (600) are consistently inserted in a unique direction, convenience can be achieved. In addition, since the batteries (600) are connected in series to each other by the three, the battery efficiency can be improved, and space utility in use can be increased. |
