Switching apparatus
AssigneeMitsubishi Electric Corporation
InventorsTaehyun Kim, Haruhiko Shimoji
Life of this patent
Estimating the term…
Abstract
A switching apparatus includes: a vacuum valve which houses a fixed side electrode fixed to a fixed current-carrying shaft and a movable side electrode fixed to a movable current-carrying shaft coaxially arranged with the fixed current-carrying shaft in face-to-face relation to the fixed side electrode; and a buffering mechanism which is coaxially disposed with the fixed current-carrying shaft on the fixed side of the vacuum valve and reduces a collision load at the time when the movable side electrode is close contact with the fixed side electrode.
Claims18
A switching apparatus comprising:
- a vacuum valve which houses a fixed side electrode fixed to a fixed current-carrying shaft and a movable side electrode fixed to a movable current-carrying shaft coaxially arranged with said fixed current-carrying shaft in face-to-face relation to said fixed side electrode;
- a basic shaft having a shaft section coaxially arranged with said fixed current-carrying shaft, a basic section attached to the fixed side of said vacuum valve on one side of the shaft section, and a thread section formed on the other side of the shaft section;
- a shaft support body attached by insertion to said basic shaft;
- a support member which supports said shaft support body and suppresses said basic shaft from moving in a radial direction;
- an elastic body concentrically attached by insertion to the shaft section between said shaft support body and the basic section of said basic shaft;
- and
- an adjustment member which is screwed to the thread section of said basic shaft and performs load adjustment of said elastic body.
The switching apparatus according to 1, further comprising:
- a conductive bearing made of a good conductor, which movably supports said movable current-carrying shaft in an axial direction and is fixed against a movement in a radial direction;
- and
- a slide contact which supports said conductive bearing.
Dependencies are inferred from the claim text.