# US 12,759,432 B2 · Housing for a sunken electric road track, a sunken electric road track and a method for arranging a sunken electric road track along a road > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,759,432 B2 - Document ID: US12759432B2 - Status: Granted - Kind: B2 - Application number: 18/548,167 - Filed: 2022-02-22 - Published: 2024-05-02 - Granted: 2026-10-13 - Earliest claimed: 2021-03-01 - Assignees: Elonroad AB - Applicants: Elonroad AB - Inventors: Andreas Sorensen; Dan Zethraeus - Web page: https://patentgrep.com/patent/US12759432B2 ## CPC - B60M 1/307: {Supports} - B60L 5/40: for collecting current from lines in slotted conduits - B60M 1/346: {Joints} - B60M 1/302: {composite} - B60M: POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES (control of points and safety arrangements along railway lines B61L; construction of rails and points in general E01B) - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES ## Abstract A housing for a sunken electric road track configured to conductively provide electric power to a vehicle is presented. The housing comprising: a bottom plate extending in a longitudinal direction (L); opposing side walls protruding from the bottom plate; and opposing lateral flanges extending in the longitudinal direction (L), the opposing lateral flanges extending in the longitudinal direction (L) forming lateral protrusions for providing anchoring of the housing in a fixating mass used for fixating the housing in a groove of a roadway (40). Also, a sunken electric road track comprising such a housing is presented as well as a method for arranging a sunken electric road track along a road. ## Claims ### Claim 1 A housing for a sunken electric road track configured to conductively provide electric power to a vehicle, the housing comprising: a bottom plate extending in a longitudinal direction, opposing side walls protruding from the bottom plate and extending in the longitudinal direction, opposing lateral flanges extending in the longitudinal direction forming lateral protrusions for providing anchoring of the housing in a fixating mass used for fixating the housing in a groove of a roadway, wherein the respective opposing flange protrude from a bottom portion of the respective opposing side wall, the bottom portion of each opposing side wall is the portion thereof that is adjacent and connecting to the bottom plate. ### Claim 2 (depends on 1) The housing according to claim 1, wherein the opposing side walls each comprises a lateral step extending in the longitudinal direction, such that an upper portion of the respective side wall is outwardly displaced in the lateral direction in relation to a bottom portion of the respective side wall. ### Claim 3 (depends on 2) The housing according to claim 2, wherein the respective opposing lateral flange protrude laterally past the respective upper portion of the opposing side walls. ### Claim 4 (depends on 1) A sunken electric road track configured to conductively provide electric power to a vehicle, the sunken electric road track comprising: a housing according to claim 1 extending along the sunken electric road track and being configured to be arranged in a groove formed in a roadway, a contact line structure extending along the housing, via which power collectors of the vehicle is configured to conductively draw electric power from the sunken electric road track, the contact line structure being arranged inside the housing, a plurality of clamps configured to clamp the contact line structure to the housing for forming a plurality of friction joints between the housing and the contact line structure, the plurality of friction joints being configured to permit longitudinal expansion of the contact line structure relative to the housing. ### Claim 5 (depends on 4) The sunken electric road track according to claim 4, comprising a plurality of housings arranged one after the other along the longitudinal direction of the sunken electric road track, further comprising drainage piping arranged below the bottom plates of the plurality of housings, the drainage piping comprising inlets arranged at joints between the plurality of housings. ### Claim 6 (depends on 4) The sunken electric road track according to claim 4, further comprising a fixating mass filling a space between the housing and the groove formed in the roadway such that the housing is fixedly arranged in the groove. ### Claim 7 (depends on 6) The sunken electric road track according to claim 6, wherein the fixating mass comprises a lower portion filling a space between the bottom plate of the housing and a bottom of the groove and surrounding the opposing lateral flanges of the housing, an upper portion filling a space between the respective opposing side wall of the housing and a respective side wall of the groove, wherein the upper portion is arranged above the lower portion. ### Claim 8 (depends on 7) The sunken electric road track according to claim 7, wherein a composition of the fixating mass in the upper portion is different from a composition of the fixating mass in the lower portion. ### Claim 9 (depends on 8) The sunken electric road track according to claim 8, wherein the composition of the fixating mass in the upper portion is an elastomeric sealant composition and the composition of the fixating mass in the lower portion is a rigid structural anchoring composition. ### Claim 10 (depends on 4) The sunken electric road track according to claim 4, further comprising an electrically insulating layer arranged between the housing and the contact line structure. ### Claim 11 A method for arranging a sunken electric road track along a road, the method comprising: arranging a housing of the sunken electric road track in a groove formed in a roadway of the road, the housing comprising a bottom plate, opposing side walls, and opposing lateral flanges protruding from a bottom portion of the opposing side walls, such that a space is formed between a bottom plate of the housing and a bottom of the groove and between opposing side walls of the housing and respective side walls of the groove, and filling the space with a fixating mass by pouring liquified fixating mass into the space, wherein the filling the space with a fixating mass comprises: filling a lower portion of the space, between the bottom plate of the housing and the bottom of the groove and surrounding opposing lateral flanges extending in a longitudinal direction forming lateral protrusions for providing anchoring of the housing, with a fixating mass of a first composition, and filling an upper portion of the space, between the respective opposing side wall of the housing and a respective side wall of the groove, with a fixating mass of a second composition, wherein the upper portion is arranged above the lower portion, and wherein the second composition of the fixating mass in the upper portion is different from the first composition of the fixating mass in the lower portion. ### Claim 12 (depends on 11) The method according to claim 11, wherein the second composition of the fixating mass in the upper portion is an elastomeric sealant composition and the first composition of the fixating mass in the lower portion is a rigid structural anchoring composition. ### Claim 13 (depends on 11) The method according to claim 11, further comprising: arranging a contact line structure of the sunken electric road track inside the housing, via which contact line structure power collectors of a vehicle are configured to conductively draw electric power from the sunken electric road track; and clamping the contact line structure to the housing using a plurality of clamps for forming a plurality of friction joints between the housing and the contact line structure, the plurality of friction joints being configured to permit longitudinal expansion of the contact line structure relative to the housing. ### Claim 14 (depends on 13) The method according to claim 13, further comprising arranging an electrically insulating layer between the housing and the contact line structure. ### Claim 15 (depends on 11) The method according to claim 11, further comprising: arranging a plurality of housings one after the other along a longitudinal direction of the sunken electric road track, and arranging drainage piping below the bottom plates of the plurality of housings, the drainage piping comprising inlets arranged at joints between the plurality of housings. ### Claim 16 (depends on 11) The method according to claim 11, wherein the fixating mass is a bituminous fixating mass.