| 摘要 |
<p>A banana plug comprising a core pole (3) and copper outer tube (1), elastic outer copper hull (2) which wrap subsection out of the core pole (3), wherein a mandrill aperture (31) is extending through the core pole (3) in its longitudinal direction, an insulative sheath (32) is attached to inner wall of the mandrill aperture (31), a copper pole (33) is inserted into the insulative sheath (32), the copper pole (33) is hollow and contacts inside with deep hole (331) or through hole at tip. The babana plug is configurated to the inner copper pole, outer tube which are insulative each other by means of improving structure inside of the core pole without changing outer shape and structure of the plug. It provides two contacts or an additional optical contact.</p> |
