| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent malfunction of a magnetic sensor even if a run control signal and an operation control signal are received with magnetism from a path side, and enhance accuracy of the position control of an automatic carrying car by using a battery in which a battery electrode made of a magnetic material which polarizes in a manufacturing process is demagnetized. SOLUTION: A battery unit 1 mounted on an automatic carrying car is constituted in such a way that a cathode plate and an anode plate constituting an electrode plate are alternately arranged in a layer state, housed in a battery unit container 3, and immersed in an electrolyte filled in the container. When the electrode plate is housed in the container 3, the container 3 is divided into an upper container 3a and a lower container 3b, the electrode plate is housed in the lower container 3b, then the upper container is set, and the joining part is welded. Magnetization generating in the manufacturing process of a battery electrode of a battery in which a magnetic material such as nickel and iron is used on the electrode plate is demagnetized.</p> |
