SPRING PIN, AND BATTERY CONNECTOR DEVICE

• Main Author: KATSUTA KENSUKE
• Format: Patent
• Language: English
• Published: 30.10.2008
• Subjects: BASIC ELECTRIC ELEMENTS; CURRENT COLLECTORS; ELECTRICITY; LINE CONNECTORS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To prevent instantaneous cutoff phenomenon in which contact between the connecting terminal of a battery and the spring pin of a battery connector is instantaneously cut off, when impact is applied to a portable telephone form the outside by dropping it onto the ground and so on. SOLUTION: Since if the tip part of the spring pin is machined to a semi-spherical shape, the tip part of the spring pin is brought into [point-contact] with the terminal of the battery, the instantaneous cutoff phenomenon easily occurs. Therefore, the tip part 4a of this spring pin is tapered to an almost conical shape having an inclination angle of 4 degrees for instance in this spring pin. Thereby, [line contact] between the tip part 4 of the spring pin and the terminal 11a of the battery is attained. Since the [line] is an aggregate of [points], the spring pin can be brought into the terminal 11a of the battery at a large number of points. Therefore, the number of contact points can be increased, and the instantaneous cutoff phenomenon can be strongly prevented. COPYRIGHT: (C)2009,JPO&INPIT