# US 12,759,644 B2 · Vehicle body floor assembly for vehicle and vehicle cross-reference to related applications > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,759,644 B2 - Document ID: US12759644B2 - Status: Granted - Kind: B2 - Application number: 18/689,836 - Filed: 2022-08-23 - Published: 2024-11-21 - Granted: 2026-10-13 - Earliest claimed: 2021-09-29 - Assignees: Svolt Energy Technology Co., Ltd. - Applicants: Svolt Energy Technology Company Limited - Inventors: Zhiyuan Guo; Yukun Jia; Youngbin Lim - Web page: https://patentgrep.com/patent/US12759644B2 ## CPC - B62D 25/20: Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)} - B60K 1/04: of the electric storage means for propulsion - B60K 2001/0438: {Arrangement under the floor} - 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) - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES ## Abstract A vehicle body floor assembly for a vehicle includes a vehicle body mounting structure; and a battery pack, the battery pack including a battery module and a housing, the battery module being provided in the housing, the housing being connected to the vehicle body mounting structure, and at least a portion of the structure of the housing being configured as a vehicle body floor of the vehicle. The structure enables an integration level of a vehicle body and the battery pack to be higher. In addition, also provided is a vehicle having the vehicle body floor assembly. ## Claims ### Claim 1 A vehicle body floor assembly for a vehicle, comprising: a vehicle body mounting structure; and a battery pack, the battery pack comprising a battery module and a housing, the battery module being provided in the housing, the housing being connected to the vehicle body mounting structure, and at least a portion of the structure of the housing being configured as a vehicle body floor of the vehicle; wherein the battery module comprises a battery cell and a cell support structure, the cell support structure is supported between the battery cell and the housing, the cell support structure comprises a support body and a bottom support rib, the support body is used for supporting the battery cell, the bottom support rib is connected to the support body and is located on a side of the support body away from the battery cell, the bottom support rib is used for deforming and absorbing energy when impacted; the support body is provided with an avoidance opening penetrating the support body, and the bottom support rib corresponds to the avoidance opening in a thickness direction of the support body. ### Claim 2 (depends on 1) The vehicle body floor assembly for a vehicle according to claim 1, wherein the housing is provided with a vehicle body mounting member, and the vehicle body mounting member is connected to the vehicle body mounting structure. ### Claim 3 (depends on 2) The vehicle body floor assembly for a vehicle according to claim 2, wherein the vehicle body mounting structure comprises a left threshold beam, a right threshold beam, and a cross beam, the cross beam is connected between the left threshold beam and the right threshold beam, and the vehicle body mounting member is connected to the cross beam. ### Claim 4 (depends on 3) The vehicle body floor assembly for a vehicle according to claim 3, wherein the housing comprises an upper housing and a lower housing, the upper housing and the lower housing jointly define a mounting cavity for mounting the battery module, the upper housing is provided with the vehicle body mounting member, and the upper housing is configured as the vehicle body floor. ### Claim 5 (depends on 3) The vehicle body floor assembly for a vehicle according to claim 3, wherein a connection flange is provided at a circumferential edge of the housing, and the connection flange is connected to the left threshold beam and/or the right threshold beam; and the vehicle body mounting structure further comprises an end beam, the end beam is connected between the left threshold beam and the right threshold beam, and the connection flange is connected to the end beam. ### Claim 6 (depends on 1) The vehicle body floor assembly for a vehicle according to claim 1, wherein the housing is provided with a seat mounting member, and the seat mounting member is used for mounting a seat of the vehicle. ### Claim 7 (depends on 1) The vehicle body floor assembly for a vehicle according to claim 1, wherein the housing is provided with a high-voltage output plug-in and a low-voltage output plug-in, the high-voltage output plug-in is configured to be connected to an output terminal of the battery module, and the low-voltage output plug-in is configured to be communicatively connected to a Battery Management System (BMS) mainboard of the battery pack; and the high-voltage output plug-in and/or the low-voltage output plug-in is provided under a rear seat of the vehicle, and the high-voltage output plug-in and the low-voltage output plug-in are both configured to be connected to an electric appliance component of the vehicle. ### Claim 8 (depends on 1) The vehicle body floor assembly for a vehicle according to claim 1, wherein the battery module is bonded to the housing. ### Claim 9 (depends on 1) The vehicle body floor assembly for a vehicle according to claim 1, wherein the battery pack further comprises a heat exchange structure, the heat exchange structure is provided in the housing and is located on an outer side of the battery module, and the heat exchange structure is used for heat exchange with the battery module. ### Claim 10 (depends on 1) The vehicle body floor assembly for a vehicle according to claim 1, wherein the battery cell comprises a battery cell unit, and the battery module further comprises: a side frame, wherein the side frame is disposed to surround the battery cell unit; wherein the avoidance opening is an avoidance groove penetrating the support body. ### Claim 11 (depends on 10) The vehicle body floor assembly for a vehicle according to claim 10, wherein the battery module further comprises a BMS mainboard, and the BMS mainboard is provided on the side frame. ### Claim 12 (depends on 1) The vehicle body floor assembly for a vehicle according to claim 1, wherein the battery cell is a prismatic battery cell, and the battery module further comprises: a heat exchange structure, wherein the battery cell is sandwiched in the heat exchange structure, and the heat exchange structure is used for heat exchange with the battery cell. ### Claim 13 (depends on 12) The vehicle body floor assembly for a vehicle according to claim 12, wherein the heat exchange structure comprises a plurality of heat exchange plates, the plurality of heat exchange plates are sequentially spaced apart in a length direction of the battery module to form a sandwiching space between every two adjacent heat exchange plates, and the battery cell is sandwiched in the sandwiching space; and each heat exchange plate comprises a first arc-shaped portion and a second arc-shaped portion that are connected to each other, the first arc-shaped portion and the second arc-shaped portion both extend in a length direction of the heat exchange plate, a recessing direction of the first arc-shaped portion and a recessing direction of the second arc-shaped portion are opposite to each other in the length direction of the battery module, and the first arc-shaped portion and the second arc-shaped portion of one heat exchange plate from every two adjacent heat exchange plates are respectively disposed to correspond to the first arc-shaped portion and the second arc-shaped portion of the other heat exchange plate from said two adjacent heat exchange plates. ### Claim 14 (depends on 13) The vehicle body floor assembly for a vehicle according to claim 13, wherein the heat exchange structure further comprises a first side plate and a second side plate, and two ends of each heat exchange plate are respectively connected to and in communication with the first side plate and the second side plate; the battery module further comprises an end plate, and the end plate is connected to each of two ends of the first side plate and is connected to each of two ends of the second side plate; and/or the end plate is connected to the cell support structure; and the battery module further comprises a BMS mainboard, and the BMS mainboard is provided on the end plate. ### Claim 15 (depends on 12) The vehicle body floor assembly for a vehicle according to claim 12, wherein the bottom support rib and the support body jointly define a cushioning space, and the cushioning space corresponds to the battery cell in a thickness direction of the support body; the bottom support rib comprises at least one support rib unit, and each support rib unit together with the support body jointly define one cushioning space; the bottom support rib comprises a plurality of support rib units, and every two adjacent support rib units are connected to each other; the avoidance opening is an avoidance hole penetrating the support body, the avoidance hole is provided to correspond to the cushioning space, and an explosion relief valve of the battery cell is disposed to correspond to the avoidance hole; each support rib unit is provided with a gas discharge notch in communication with the cushioning space; and the cell support structure further comprises a upper support rib, the upper support rib is provided on a surface of the support body close to the battery cell, the upper support rib and the support body jointly define a mounting space for mounting the battery cell, and the upper support rib is configured to be sandwiched between two adjacent battery cells. ### Claim 16 (depends on 1) A vehicle, wherein the vehicle is provided with the vehicle body floor assembly according to claim 1.