INNER AND OUTER BELLOW STRUCTURE FOR DRY AND HIGHLY-PRESSURIZED AIR OR NITROGEN-INSULATED VACUUM INTERRUPTER

摘要

An inner and outer bellow structure for a dry and highly-pressurized air or nitrogen-insulated vacuum interrupter. One end of the outer bellow structure is connected by seal-welding to a lateral wall of a dynamic conductive rod part extended outside of the dry and highly-pressurized air or nitrogen-insulated vacuum interrupter, or, one end of the outer bellow tube is connected by seal-welding to a base support of the dry and highly-pressurized air or nitrogen-insulated vacuum interrupter, while the other end of the outer bellow tube is connected by seal-welding to an outer end of an end cap of a moving end of the dry and highly-pressurized air or nitrogen-insulated vacuum interrupter, and an inner bellow tube within the dry and highly-pressurized air or nitrogen-insulated vacuum interrupter is integrated. Because the internal gaseous pressure is maintained at less than two atmospheric pressures, when performing a gate-opening movement, the inner bellow tube is protected from being damaged by the dry and highly-pressurized air or nitrogen, thus protecting the inner bellow tube, preventing the serious consequence of damaged electronic device components, and allowing for wear resistance, extended service life, and improved stability.