VACUUM DEVICE AND FEED-THROUGH STRUCTURE

Japanese Patent JP2016041974

A

PROBLEM TO BE SOLVED: To provide a feed-through structure that improves workability at the time of connection.SOLUTION: A vacuum device 10 comprises: a vacuum container 12; a magnetic field generator 20 that is an internal device housed in the vacuum container 12; and a feed-through structure 40 provided in an opening part of the vacuum container 12 to supply fluid to the internal device from the outside. The feed-through structure 40 includes: an insulating member 42 attached so as to close the opening part and including through-holes 44 connecting the inside and outside of the vacuum container 12; penetrating joints 50 attached to the through-holes 44; and pipes 60 inserted through the penetrating joints 50, extended in an axial direction, and connected to the internal device. The penetrating joints 50 have: a fixed state in which the pipes 60 are fixed to seal gaps between the penetrating joints and the pipes; and a released state in which the axial connection lengths of the pipes protruding from the insulating member 42 toward the inside of the vacuum container 12 can be changed. The pipes 60 are connected to current-carrying parts of the internal device.SELECTED DRAWING: Figure 1

JP7186089	Sealing member for piping and construction structure of piping using the same
JP3884153	GROMMET
JP3354051	GROMMET

TAKAHASHI NOBUAKI
MITSUBORI HITOSHI

JP2014166590A

March 31, 2016

August 19, 2014

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SUMITOMO HEAVY INDUSTRIES

F16L5/02

Sakaki Morishita
Yusuke Murata
Tomoyuki Miki
Tomisho Teruo

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