# US 11,993,312 B2 · Reinforcement structure for electric vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,993,312 B2 - Document ID: US11993312B2 - Status: Granted - Kind: B2 - Application number: 17/861,466 - Filed: 2022-07-11 - Published: 2023-01-19 - Granted: 2024-05-28 - Earliest claimed: 2021-07-14 - Assignees: Hyundai Motor Company; Kia Corporation - Applicants: Hyundai Motor Company; Kia Corporation - Inventors: Byeongcheon Lee; Yun A Cho; Jiwoong Park; Kyeong Jae Kim - Web page: https://patentgrep.com/patent/US11993312B2 ## CPC - B62D 25/14: Dashboards as superstructure sub-units (other dashboard aspects B60K) - B62D 25/2018: {the subunits being front structures} - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) ## Abstract A reinforcement structure for an electric vehicle includes a lower dash portion lower panel, a lower dash portion upper panel forming a closed cross-section with the lower dash portion lower panel in a vehicle body length direction and a dash lower reinforcement provided inside the closed cross-section. ## Claims ### Claim 1 A reinforcement structure for a vehicle, the reinforcement structure comprising: a lower dash portion lower panel; a lower dash portion upper panel forming a closed cross-section with the lower dash portion lower panel in a vehicle body length direction; a dash lower reinforcement provided inside the closed cross-section; a front side member mounted in front of the vehicle; and a center floor member mounted at a lower portion of the vehicle, wherein the dash lower reinforcement is provided between the front side member and the center floor member, and wherein the dash lower reinforcement further includes a connection pipe to connect the dash lower reinforcement and a battery mounted on the lower portion of the vehicle. ### Claim 2 (depends on 1) The reinforcement structure of claim 1, wherein the dash lower reinforcement includes a closed cross-section. ### Claim 3 (depends on 2) The reinforcement structure of claim 2, wherein the dash lower reinforcement further includes a reinforcement rib formed in a closed space of the closed cross-section of the dash lower reinforcement. ### Claim 4 (depends on 1) The reinforcement structure of claim 1, wherein the dash lower reinforcement includes a connection hole through which the connection pipe is mounted. ### Claim 5 (depends on 4) The reinforcement structure of claim 4, wherein the dash lower reinforcement further includes a reinforcement rib formed in a closed space of the closed cross-section, and wherein a distal end portion of the connection pipe is positioned in the closed space. ### Claim 6 (depends on 1) The reinforcement structure of claim 1, wherein the dash lower reinforcement includes a connection hole. ### Claim 7 (depends on 1) The reinforcement structure of claim 1, wherein the dash lower reinforcement is positioned further inward than the front side member along a width direction of the vehicle. ### Claim 8 (depends on 7) The reinforcement structure of claim 7, wherein the center floor member is positioned further inward than the dash lower reinforcement along the width direction of the vehicle. ### Claim 9 (depends on 2) The reinforcement structure of claim 2, wherein the center floor member includes: a front center floor member mounted on the dash lower reinforcement; and a main center floor member mounted on a center floor of the vehicle behind the front center floor member. ### Claim 10 (depends on 9) The reinforcement structure of claim 9, wherein the dash lower reinforcement is positioned lower than the front side member in a height direction of the vehicle, and wherein the main center floor member is positioned relatively lower than the dash lower reinforcement in the height direction of the vehicle. ### Claim 11 (depends on 9) The reinforcement structure of claim 9, further including: a cross member mounted between the front center floor member and the main center floor member. ### Claim 12 (depends on 9) The reinforcement structure of claim 9, wherein the front center floor member includes: a front flange connected to the lower dash portion upper panel; and a front center floor protrusion protruding from the front flange. ### Claim 13 (depends on 12) The reinforcement structure of claim 12, wherein a closed space is formed inside the front center floor protrusion with the lower dash portion upper panel. ### Claim 14 (depends on 2) The reinforcement structure of claim 2, further including a slope reinforcement positioned between the dash lower reinforcement and the front side member. ### Claim 15 (depends on 1) The reinforcement structure of claim 1, wherein the dash lower reinforcement is formed by extrusion molding of aluminum. ### Claim 16 (depends on 1) The reinforcement structure of claim 1, wherein the dash lower reinforcement is formed of a steel material.