# US 2013/0153539 A1 · Fiber reinforced insulation material for embedded vacuum interrupters > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153539 A1 - Document ID: US20130153539A1 - Status: Published application - Kind: A1 - Application number: 13/766,262 - Filed: 2013-02-13 - Published: 2013-06-20 - Earliest claimed: 2010-08-13 - Assignees: ABB Technology AG - Inventors: Wenkai SHANG; Christof Humpert - Web page: https://patentgrep.com/patent/US20130153539A1 ## CPC - H01H 33/53: Cases (for switchgear H02B1/26); Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices - B29C 45/0005: {using fibre reinforcements} - B29C 45/14639: {for obtaining an insulating effect, e.g. for electrical components} - H01H 33/66207: {Specific housing details, e.g. sealing, soldering or brazing} - B29C 45/1671: {with an insert} - B29K 2105/14: oriented - H01H 2033/6623: {Details relating to the encasing or the outside layers of the vacuum switch housings} - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS ## Abstract A vacuum interrupter embedded in an insulating material is disclosed, the insulating material including a first main layer having a first sub-layer, a second sub-layer, and a third sub-layer. The second sub-layer is arranged between the first sub-layer and the third sub-layer. The first sub-layer, the second sub-layer, and the third sub-layer can include fibers, wherein the first sub-layer can include a group of first fibers which are arranged in parallel with respect to each other. ## Claims ### Claim 1 Vacuum interrupter embedded in an insulating material, the insulating material comprising: a first main layer having a first sub-layer, a second sub-layer, and a third sub-layer; wherein the second sub-layer is arranged between the first sub-layer and the third sub-layer; wherein the first sub-layer, the second sub-layer, and the third sub-layer comprise fibers; and wherein the first sub-layer comprises a group of first fibers which are arranged in parallel with respect to each other. ### Claim 2 (depends on 1) The vacuum interrupter of claim 1, wherein an orientation of the first fibers is defined as a main fiber orientation of the first main layer; wherein the vacuum interrupter has a main axis (MA) corresponding to a main current flow direction (MCFD) of the vacuum interrupter; and wherein the orientation of the first fibers is parallel or orthogonal to the main axis (MA) of the vacuum interrupter. ### Claim 3 (depends on 1) The vacuum interrupter of claim 1, wherein the second sub-layer comprises: a group of second fibers which are arranged in parallel with respect to each other. ### Claim 4 (depends on 3) The vacuum interrupter of claim 3, wherein the second fibers are orientated in a direction which is not parallel to a direction of the first fibers. ### Claim 5 (depends on 3) The vacuum interrupter of claim 3, wherein the second fibers are orientated in one of a 30°-direction, a 45°-direction, a 60°-direction, and a 90°-direction with respect to a direction of the first fibers. ### Claim 6 (depends on 3) The vacuum interrupter of claim 3, wherein the third sub-layer comprises: a group of third fibers which are arranged in parallel with respect to each other. ### Claim 7 (depends on 6) The vacuum interrupter of claim 6, wherein the third fibers are orientated in a direction which is not parallel to the direction of the second fibers. ### Claim 8 (depends on 6) The vacuum interrupter of claim 6, wherein the third fibers are orientated in one of a 30°-direction, a 45°-direction, a 60°-direction, and a 90°-direction with respect to the direction of the second fibers. ### Claim 9 (depends on 6) The vacuum interrupter of claim 6, wherein the third fibers are orientated parallel to the first fibers. ### Claim 10 (depends on 1) The vacuum interrupter of claim 1, wherein the insulating material comprises: a second main layer, the second main layer having a first sub-layer, a second sub-layer, and a third sub-layer, wherein the second sub-layer is arranged between the first sub-layer and the third sub-layer of the second main layer; wherein the first sub-layer, the second sub-layer, and the third sub-layer of the second main layer include, with the first sub-layer of the second main layer having a group of first fibers which are arranged in parallel with respect to each other; and wherein the second main layer is arranged with respect to the first main layer such that a main fiber orientation of the second main layer is not parallel to a main fiber orientation of the first main layer. ### Claim 11 (depends on 10) The vacuum interrupter of claim 10, wherein the second main layer is arranged with respect to the first main layer such that the main fiber orientation of the second main layer is orientated in one of a 30°-direction, a 45°-direction, a 60° direction, and a 90° direction with respect to the main fiber orientation of the first main layer. ### Claim 12 (depends on 10) The vacuum interrupter of claim 10, wherein the insulating material comprises: at least one third main layer, the at least one third main having a first sub-layer, a second sub-layer, and a third sub-layer, wherein the second sub-layer is arranged between the first sub-layer and the third sub-layer of the third main layer; wherein the first sub-layer, the second sub-layer, and the third sub-layer of the at least one third main layer include fibers, with the first sub-layer of the second main layer having a group of first fibers which are arranged in parallel with respect to each other; and wherein the third main layer is arranged with respect to the second main layer such that a main fiber orientation of the third main layer is not parallel to the main fiber orientation of the second main layer. ### Claim 13 (depends on 1) The vacuum interrupter of claim 1, wherein the insulating material comprises: a material selected from a group consisting of a fiber reinforced thermoplastic, a fiber reinforced thermoset, a mineral reinforced material, a mixture of a glass fiber and of a mineral reinforced material, a nano-particle reinforced material, and a mixture of a nano-particle reinforced glass fiber and of a mineral reinforced material. ### Claim 14 An insulating material, comprising: a first main layer having a first sub-layer, a second sub-layer, and a third sub-layer; wherein the second sub-layer is arranged between the first sub-layer and the third sub-layer; wherein the first sub-layer, the second sub-layer, and the third sub-layer include fibers; and wherein the first sub-layer includes a group of first fibers which are arranged in parallel with respect to each other. ### Claim 15 (depends on 14) The insulating material of claim 14, in combination with a vacuum interrupter, wherein an orientation of the first fibers is defined as a main fiber orientation of the first main layer. ### Claim 16 (depends on 14) The insulating material of claim 14, comprising: a second main layer, the second main layer having a first sub-layer, a second sub-layer, and a third sub-layer, wherein the second sub-layer is arranged between the first sub-layer and the third sub-layer of the second main layer; wherein the first sub-layer, the second sub-layer, and the third sub-layer of the second main layer include fibers, with the first sub-layer of the second main layer having a group of first fibers which are arranged in parallel with respect to each other; and wherein the second main layer is arranged with respect to the first main layer such that a main fiber orientation of the second main layer is not parallel to a main fiber orientation of the first main layer. ### Claim 17 (depends on 14) The insulating material of claim 14, comprising: at least one third main layer, the at least one third main having a first sub-layer, a second sub-layer, and a third sub-layer, wherein the second sub-layer is arranged between the first sub-layer and the third sub-layer of the third main layer: wherein the first sub-layer, the second sub-layer, and the third sub-layer of the at least one third main layer include fibers, with the first sub-layer of the second main layer having a group of first fibers which are arranged in parallel with respect to each other; and wherein the third main layer is arranged with respect to the second main layer such that a main fiber orientation of the third main layer is not parallel to a main fiber orientation of the second main layer. ### Claim 18 Method of embedding a vacuum interrupter in an insulating material, the method comprising: applying a first sub-layer to the vacuum interrupter; applying a second sub-layer to the first sub-layer; and applying a third sub-layer to the second sub-layer, wherein the first sub-layer, the second sub-layer, and the third sub-layer include fibers, and the first sub-layer includes a group of first fibers which are arranged in parallel with respect to each other. ### Claim 19 (depends on 18) Method according to claim 18, comprising: injection molding the first, the second and the third sub-layers. ### Claim 20 (depends on 18) Method according to claim 18, comprising: arranging between the vacuum interrupter and the layers, a no filled air gap, or a partly filled gap, or fully filled gap with compensation and/or adhesive material.