High power vacuum fuse apparatus
阅读：251发布：2021-05-16
专利汇可以提供High power vacuum fuse apparatus专利检索，专利查询，专利分析的服务。并且Vacuum fuse apparatus includes a pair of arcing electrode assemblies in the form of an interleaved array. A fusible element is connected between members of each electrode assembly. When the current carrying capacity of the fusible member is exceeded it fails and an arc is struck between parallel gaps of the interleaved rod array. Arc is extinguished upon occurrence of a zero value of current through fuse device.，下面是High power vacuum fuse apparatus专利的具体信息内容。
1. High power fuse apparatus comprising: a. An hermetically sealed envelope evacuated to a pressure of 10 4 torr or less; b. First and second arc-electrode assemblies each comprising a smooth surfaced array of individual conductive members having a broad area for supporting an electric arc, b1. the individual members of said first arc-electrode assembly being arranged in close disposition to like members of said second arc-electrode assembly to define a plurality of electrically parallel arcing paths; c. A fusible member connected between at least one portion of said first and said second arc electrode assemblies and adapted to disintegrate at a predetermined current and initiate an electric arc between said arc-electrode assemblies; and d. Means for connecting said arc electrode assemblies in electrical circuit with electrical apparatus to be fused thereby.
2. Fuse apparatus as described in claim 1 wherein each of said arc electrode assemblies includes a conductive main member and a plurality of secondary members extending into the volume of said envelope, said secondary members of one of said arc electrode members being interleaved with said secondary members of the other of said arc-electrode assemblies to provide a plurality of electrically parallel arcing paths over a broad area.
3. Fuse apparatus of claim 2 wherein said main members of said arc-electrode assemblies are at oppositely disposed ends of said envelope, said secondary members extend generally in the direction of the oppositely disposed main member, and a shield member is laterally disposed about said interleaved secondary members.
4. High power fuse apparatus comprising: a. An hermetically sealed envelope evacuated to a pressure of 10 4 torr or less; b. first and second arc-electrode assemblies each comprising a plurality of smooth surfaced parallel rod-like arcing members at the same potential with rods of the same assembly, b1. said first and second assemblies interleaved to provide an array of rod-like members in alternating sequence between said assemblies and providing a plurality of electrically parallel large area arcing paths therebetween; c. a fusible member connected between said first and second arc-electrode assemblies making good electrical contact with at least one portion of each and providing means for initiating an electric arc therebetween upon fusing thereof; d. shield means laterally surrounding said interleaved array and laterally confining arcing specie to an interaction volume defined by overlapping of respective rod-like members of said assemblies; e. means for connecting said respective arc electrode assemblies in electrical circuit with electrical apparatus to be fused thereby.
5. Fuse apparatus of claim 4 wherein said fusible element is connected between at least one each of respective rod-like members of of each of said assemblies.
6. Fuse apparatus of claim 5 wherein fusible element is in the form of a ribbon.
7. Fuse apparatus as set forth in claim 4 wherein said fusible element is connected to a plurality of said rod-like members of said assemblies.
8. Fuse apparatus of claim 4 wherein said fusible member is disposed about said array of rod-like members adjacent the inboard ends of one of said plurality of parallel rod-like members.
9. Fuse apparatus of claim 4 wherein two fusible members are provided encircling said array of rod-like electrode members, one of said fusible elements being disposed adJacent the respective ends of each of said pluralities of rod-like members.
10. Fuse apparatus of claim 4 wherein said fusible member is in the configuration of a spiral wound about and contacting each of said rod-like members within the longitudinal region between the respective inboard ends of said rod-like members of each of said arc-electrode assemblies.
11. Fuse apparatus of claim 4 wherein said fusible member is a metallic member comprising copper.
12. Fuse apparatus of claim 11 wherein said fusible element is in the form of a wire.
13. Fuse apparatus of claim 4 wherein said arc-electrode assemblies are fabricated of metallic members devoid of sorbed gases and including gases and gas-forming constituents to the extent of being capable of sustaining 100 kiloamperes of arcing current for one cycle of power frequency without the evolution of sufficient gas to raise the measurable pressure within said envelope.
14. Fuse apparatus of claim 13 wherein said arc-electrode assemblies are fabricated from OFHC grade copper.
15. Fuse apparatus of claim 13 wherein said arc-electrode assemblies are fabricated from vacuum melted hardened, ductile steel.
16. Fuse apparatus of claim 13 wherein said means for initiating a discharge comprises a trigger assembly for initiating a trigger arc.
17. Fuse apparatus of claim 4 wherein said apparatus further includes means for initiating a discharge within said envelope between said arc electrode assemblies by the injection of an ionized plasma thereinto subsequent to fusing of said fusible element and the consumption thereof.
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