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US 10,650,995 B2Granted
Vacuum interrupter
AssigneeMitsubishi Electric Corporation
InventorsSatoshi Ochi, Shinichi Miki, Taiki Donen
Life of this patent
Estimating the term…
Abstract
A vacuum interrupter includes a fixed side contact and a movable side contact; a fixed side electrode rod connected to the fixed side contact; a movable side electrode rod connected to the movable side contact; a fixed side reinforcement plate which is arranged between the fixed side electrode rod and the fixed side contact, and whose rim portion has a step portion to be arranged apart from the back of the fixed side contact; and a movable side reinforcement plate which is arranged between the movable side electrode rod and the movable side contact, and whose rim portion has a step portion to be arranged apart from the back of the movable side contact.
Claims19
A vacuum interrupter comprising:
- a fixed side contact and a movable side contact, each of which is arranged in a vacuum vessel to be able to connect and disconnect, has a contact portion to be connected to and disconnected from each other, and is formed with a plurality of arc shaped grooves from a center portion to a rim portion;
- a fixed side electrode rod connected to said fixed side contact;
- a movable side electrode rod connected to said movable side contact;
- a fixed side reinforcement plate which is arranged between said fixed side electrode rod and said fixed side contact, and a rim portion of the fixed side reinforcement plate has a step portion to be arranged apart from a back of said fixed side contact;
- and
- a movable side reinforcement plate which is arranged between said movable side electrode rod and said movable side contact, and a rim portion of the movable side reinforcement plate has a step portion to be arranged apart from a back of said movable side contact, wherein the step portion of the fixed side reinforcement plate does not come in contact with the fixed side contact in an area on an outer side relative to a portion in which the fixed side reinforcement plate comes in contact with the fixed side contact, and the step portion of the movable side reinforcement plate does not come in contact with the movable side contact in an area on an outer side relative to a portion in which the movable side reinforcement plate comes in contact with the movable side contact,
- wherein a diameter of a portion in which said fixed side reinforcement plate comes in contact with said fixed side contact and a diameter of a portion in which said movable side reinforcement plate comes in contact with said movable side contact are set to D3, a diameter of said fixed side contact and a diameter of said movable side contact are set to D2, and an inner diameter of a thick portion of the rim portion of said fixed side contact and an inner diameter of a thick portion of the rim portion of said movable side contact are set to D1, D1 is smaller than D3 and D3 is smaller than D2 (D1<D3<D2).
4 more elements
A vacuum interrupter comprising:
- a fixed side contact and a movable side contact, each of which is arranged in a vacuum vessel to be able to connect and disconnect, has a contact portion to be connected to and disconnected from each other, and is formed with a plurality of arc shaped grooves from a center portion to a rim portion;
- a fixed side electrode rod connected to said fixed side contact;
- a movable side electrode rod connected to said movable side contact;
- a fixed side reinforcement plate which is arranged between said fixed side electrode rod and said fixed side contact, and a rim portion has a step portion to be arranged apart from a back of said fixed side contact;
- and
- a movable side reinforcement plate which is arranged between said movable side electrode rod and said movable side contact, and a rim portion has a step portion to be arranged apart from a back of said movable side contact,
- wherein the step portion of said fixed side reinforcement plate is arranged apart from the back of said fixed side contact by arranging a first spacer having a first rim portion, the first rim portion formed with a step portion between said fixed side electrode rod and said fixed side contact, and by attaching said fixed side reinforcement plate on the step portion of said first spacer;
- and
- the step portion of said movable side reinforcement plate is arranged apart from the back of said movable side contact by arranging a second spacer having a second rim portion, the second rim portion formed with a step portion between said movable side electrode rod and said movable side contact, and by attaching said movable side reinforcement plate on the step portion of said second spacer.
6 more elements
A vacuum interrupter comprising:
- a fixed side contact and a movable side contact, each of which is arranged in a vacuum vessel to be able to connect and disconnect, has a contact portion to be connected to and disconnected from each other, and is formed with a plurality of arc shaped grooves from a center portion to a rim portion;
- a fixed side electrode rod connected to said fixed side contact;
- a movable side electrode rod connected to said movable side contact;
- a fixed side projection portion provided in a central portion on a back side of said fixed side contact;
- a movable side projection portion provided in a central portion on a back side of said movable side contact;
- a fixed side reinforcement plate which is arranged between said fixed side electrode rod and said fixed side contact, a central portion of the fixed side reinforcement plate comes in contact with said fixed side projection portion, and including a first rim portion having a portion to be arranged apart from the back of said fixed side contact;
- and
- a movable side reinforcement plate which is arranged between said movable side electrode rod and said movable side contact, a central portion of the movable side reinforcement plate comes in contact with said movable side projection portion, and including a second rim portion having a portion to be arranged apart from the back of said movable side contact,
- wherein a diameter of a portion in which said fixed side reinforcement plate comes in contact with said fixed side contact and a diameter of a portion in which said movable side reinforcement plate comes in contact with said movable side contact are set to D3, a diameter of said fixed side contact and a diameter of said movable side contact are set to D2, and an inner diameter of a thick portion of the rim portion of said fixed side contact and an inner diameter of a thick portion of the rim portion of said movable side contact are set to D1, D1 is smaller than D3 and D3 is smaller than D2 (D1<D3<D2).
6 more elements
Dependencies are inferred from the claim text.