Floor reinforcement beam structure and vehicle
By incorporating a heating element into the floor reinforcement beam of a new energy vehicle and combining it with a frame structure, the problems of front floor deformation and heating have been solved, thereby improving structural stability and driving range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEEPAL AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-02
AI Technical Summary
The limited arrangement of reinforcing beams in the front floor structure of new energy vehicles leads to deformation problems, and the traditional air conditioning heating method increases battery energy consumption, affecting range and comfort.
A floor reinforcement beam structure is designed, which includes an upper heat-conducting reinforcement beam and a lower insulating plate. It has a built-in heating element and the heating is controlled by an on-board controller. The heat is transferred to the occupants' feet to replace the air conditioner for heating. Combined with a four-horizontal and five-vertical frame structure, it enhances the vehicle's stability.
This solution addresses the issue of front floor deformation, improves vehicle structural stability and comfort, saves energy, and extends the driving range of electric vehicles.
Smart Images

Figure CN224311845U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle body structure technology, specifically to a floor reinforcement beam structure and vehicle. Background Technology
[0002] With the rapid development of the new energy vehicle industry, consumers are increasingly demanding higher overall vehicle performance, with reliability, safety, and comfort becoming key considerations. In terms of vehicle body structure design, it is essential not only to meet various performance indicators but also to achieve lightweighting while ensuring structural performance, thereby further enhancing the overall performance and competitiveness of the vehicle.
[0003] Due to the specific constraints of battery placement, the height of the front floor structure in new energy electric vehicles is relatively limited. This characteristic results in a relatively small number of front floor reinforcement beams, which in turn leads to the problem of deformation of the front floor when stepped on. To address the issues of front floor reinforcement beam structure layout and performance improvement, a series of studies and designs have been conducted in related fields.
[0004] In existing technologies, some new energy vehicle front floor reinforcement beam structures adopt a multi-beam frame design. For example, one utility model sets up two horizontal beams and four vertical beams to form a two-horizontal-four-vertical frame structure. Through the design of the horizontal and vertical overlapping rectangular frame path, it can meet the platform requirements to a certain extent, while taking into account the needs of NVH performance, strength fatigue, safety, layout and process, and achieve the goals of weight reduction, reducing the number of molds and saving costs.
[0005] However, as consumers' demands for vehicle comfort continue to rise, especially when driving electric vehicles in cold winters, the issue of foot heating has become particularly prominent. Currently, the vast majority of electric vehicles use air conditioning for foot heating. But unlike traditional gasoline vehicles, new energy vehicles rely on battery power to drive the air conditioning system. Since air conditioning consumes a significant amount of energy, using it for heating significantly increases battery energy consumption, thus triggering range anxiety for drivers and passengers. Influenced by this crucial factor of driving range, drivers and passengers often prefer to wear thick clothing to ward off the cold rather than easily turn on the air conditioning for heating, which to some extent affects the comfort of using electric vehicles in cold environments.
[0006] Therefore, it is necessary to develop a new floor-reinforced beam structure and vehicle. Utility Model Content
[0007] The purpose of this utility model is to provide a floor reinforcement beam structure and vehicle that can effectively solve the problem of floor deformation under foot traffic, while also meeting the needs of foot warmth.
[0008] In the first aspect, the floor reinforcement beam structure of this utility model includes an upper heat-conducting reinforcement beam and a lower insulating plate. A heating element is arranged inside the upper heat-conducting reinforcement beam. The heating element is electrically connected to a vehicle controller. The vehicle controller controls the heating element to be energized and heated. The heat generated by the heating element is transferred to the occupant's foot placement position via the upper heat-conducting reinforcement beam.
[0009] Optionally, the upper thermally conductive reinforcing beam is provided with two ports respectively connected to the heating element, namely a positive terminal and a negative terminal. This enables a convenient electrical connection between the heating element and the vehicle controller.
[0010] Optionally, the heating element is connected to the reinforcing beam connecting harness via two ports, and the reinforcing beam connecting harness is connected to the vehicle controller via the chassis wiring harness. This achieves an orderly connection between the heating element and the vehicle controller.
[0011] Secondly, the vehicle described in this utility model includes a vehicle floor panel, and a floor reinforcement beam structure as described in this utility model is provided in one or more areas of the vehicle floor panel corresponding to the occupant's foot placement position.
[0012] Optionally, a floor reinforcement beam structure is provided in each area of the vehicle floor panel corresponding to the occupant's foot placement position. This ensures that every occupant can enjoy the heating function, improving the overall comfort and uniformity of the vehicle.
[0013] Optionally, for four-seat vehicles, the two floor reinforcement beams in the front row are both positioned between the front floor crossbeam and the front seat mounting crossbeam, and are located on the left and right sides of the central tunnel of the front floor, respectively. The "I"-shaped structure formed by the floor reinforcement beam structure, the front floor crossbeam, and the front seat mounting crossbeam enhances the strength and stability of this area, preventing the floor panel from easily deforming when stepped on.
[0014] Optionally, for four-seat vehicles, the two floor reinforcement beams located in the rear row are positioned between the front seat mounting rear crossbeam and the front floor rear crossbeam, and are located on the left and right sides of the front floor central tunnel, respectively. The "I"-shaped structure formed by the floor reinforcement beam structure, the front seat mounting rear crossbeam, and the front floor rear crossbeam enhances the strength and stability of this area, preventing the vehicle floor panel from easily deforming when stepped on.
[0015] Optionally, the front floor crossbeam, the front seat mounting crossbeam, the front seat mounting rear crossbeam, the front floor rear crossbeam, the left longitudinal beam, the two floor reinforcement beam structures, the front floor central channel, and the right longitudinal beam form a four-horizontal and five-vertical frame structure. This design of a rectangular frame path with overlapping horizontal and vertical sections can meet the platform requirements of new energy vehicles, not only meeting the requirements for vehicle strength fatigue and collision safety, but also improving the front floor's resistance to deformation under foot traffic.
[0016] Optionally, the floor reinforcement beam structure is provided with multiple mounting holes, and multiple mounting studs are welded to the vehicle floor panel in each mounting area of the floor reinforcement beam structure. The floor reinforcement beam structure is installed on the vehicle floor panel through the multiple mounting holes and the multiple mounting studs using mounting nuts. This achieves a stable connection between the floor reinforcement beam structure and the vehicle floor panel, ensuring the installation firmness of the floor reinforcement beam structure while facilitating maintenance and replacement.
[0017] The beneficial effects of this utility model are as follows: This utility model not only strengthens the structure of the vehicle floor to meet the structural rigidity requirements of the floor and prevents deformation when stepped on, but also adds an electric heating function. In the case of driving a vehicle in low temperatures in winter (such as electric vehicles), it can warm the feet and legs of the driver and passengers, replacing the traditional air conditioning heating method, thereby saving energy and improving the range of electric vehicles. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the arrangement of the floor reinforcement beam structure in the embodiments of this application;
[0019] Figure 2 This is a structural cross-sectional view of the floor reinforcement beam in the embodiment of this application (at the location of the left rear seat).
[0020] Figure 3 This is an installation structure diagram of the floor reinforcement beam described in the embodiments of this application;
[0021] Figure 4 This is a diagram showing the heating circuit layout of the floor reinforcement beam in the application embodiment.
[0022] The components include: 1. Vehicle floor panel; 2. Mounting studs; 3. Mounting nuts; 4. Front floor front crossbeam; 5. Front floor center channel; 6. Front seat mounting front crossbeam; 7. Front seat mounting rear crossbeam; 8. Front floor rear crossbeam; 9. Floor reinforcement beam structure; 10. Upper heat-conducting reinforcement beam; 11. Heating element; 12. Positive terminal; 13. Negative terminal; 14. Lower insulation plate; 15. Chassis wiring harness; 16. Floor reinforcement beam connecting wiring harness; 17. Battery; 18. Carpet; 19. Left longitudinal beam; 20. Right longitudinal beam. Detailed Implementation
[0023] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.
[0024] like Figure 1 As shown in this embodiment, a floor reinforcement beam structure includes an upper thermally conductive reinforcement beam 10 and a lower insulating plate 14. A heating element 11 is arranged inside the upper thermally conductive reinforcement beam 10. The heating element 11 is electrically connected to an on-board controller, which controls the heating element 11 to be powered on. The heat generated by the heating element 11 is transferred to the occupant's foot placement position via the upper thermally conductive reinforcement beam 10. By integrating the heating element 11 into the upper thermally conductive reinforcement beam 10, not only is the structure of the vehicle floor strengthened to meet the structural rigidity requirements and prevent deformation from being stepped on, but an electric heating function is also added. In winter driving conditions (such as electric vehicles), it can warm the feet and legs of the occupants, replacing the traditional air conditioning heating method, thereby saving energy and improving the driving range of electric vehicles.
[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in one possible embodiment, the heating element 11 uses a heating wire, and two ports connected to the heating wire are provided on the upper thermally conductive reinforcing beam 10, namely a positive terminal 12 and a negative terminal 13. The two ports are also connected to the reinforcing beam connecting harness 16, which in turn connects to the vehicle controller (e.g., the vehicle controller) via the chassis harness 15. The vehicle controller controls the heating of the heating wire. The heating wire generates heat through resistance, and the heat is transferred to the occupant's foot area after passing through the upper thermally conductive reinforcing beam 10 and the carpet 18, thereby heating the occupant's feet.
[0026] like Figure 1 As shown in the embodiments of this application, a vehicle includes a vehicle floor panel 1, and a floor reinforcement beam structure 9 as shown in the embodiments of this application is provided in one or more areas of the vehicle floor panel 1 corresponding to the occupant's foot placement position.
[0027] like Figure 2 and Figure 4As shown, in one possible embodiment, when the vehicle floor panel 1 and battery 17 are located below the floor reinforcement beam structure 9, a lower insulating plate 14 is provided to prevent the heat generated by the heating element 11 from being transferred to the battery 17. The lower insulating plate 14 is made of insulating and heat-insulating material, which can isolate the heat of the upper heat-conducting reinforcement beam 10 from being transferred to the vehicle floor panel 1 and battery 17, while preventing the heat from descending and reflecting the heat upward to ensure the safety of the battery 17.
[0028] like Figure 2 As shown, in order to effectively transfer the heat generated by the heating element 11 to the occupant's feet, the upper heat-conducting reinforcing beam 10 is made of aluminum alloy. The heating element 11 generates heat through resistance, and the heat is transferred to the occupant's feet after passing through the upper heat-conducting reinforcing beam 10 and the carpet 18.
[0029] like Figure 1 As shown, in one possible embodiment, a floor reinforcement beam structure 9 is provided in each area of the vehicle floor panel 1 corresponding to the occupant's foot placement position. This ensures that every occupant can enjoy the heating function, improving the overall comfort and uniformity of the vehicle.
[0030] like Figure 1 As shown, in one possible embodiment, for a four-seat vehicle, the two floor reinforcement beam structures 9 located in the front row are both arranged between the front floor front crossbeam 4 and the front seat mounting front crossbeam 6, and are respectively located on the left and right sides of the front floor central passage 5. The "I"-shaped structure formed by the floor reinforcement beam structure 9, the front floor front crossbeam 4, and the front seat mounting front crossbeam enhances the strength and stability of this area, avoiding the problem of the vehicle body floor panel 1 being easily deformed when stepped on.
[0031] like Figure 1 As shown, in one possible embodiment, for a four-seat vehicle, the two floor reinforcement beam structures 9 located in the rear row are both arranged between the front seat mounting rear crossbeam 7 and the front floor rear crossbeam 8, and are respectively located on the left and right sides of the front floor central passage 5. The "I"-shaped structure formed between the floor reinforcement beam structure 9, the front seat mounting rear crossbeam 7, and the front floor rear crossbeam 8 enhances the strength and stability of this area, avoiding the problem of the vehicle body floor panel 1 easily deforming when stepped on.
[0032] like Figure 1As shown, in one possible embodiment, for a four-seat vehicle, the front floor crossbeam 4, the front seat mounting front crossbeam 6, the front seat mounting rear crossbeam 7, the front floor rear crossbeam 8, the left longitudinal beam 19, two floor reinforcement beam structures 9, the front floor central channel 5, and the right longitudinal beam 20 form a four-horizontal and five-vertical frame structure. This design of overlapping rectangular frame paths can meet the platform requirements of new energy vehicles, not only meeting the requirements for vehicle strength fatigue and collision safety, but also improving the front floor's resistance to trampling deformation. Furthermore, the floor reinforcement beam structures 9 have identical structural dimensions, enabling parts interchangeability, reducing the number of molds, and better saving production costs.
[0033] like Figure 3 As shown, in one possible embodiment, the floor reinforcement beam structure 9 is provided with multiple mounting holes (e.g., four mounting holes), and multiple mounting studs 2 (e.g., four mounting studs) are welded to the vehicle floor panel 1 in the mounting area of each floor reinforcement beam structure 9. The floor reinforcement beam structure 9 is mounted on the vehicle floor panel 1 through the multiple mounting holes and mounting studs 2 using mounting nuts 3. This achieves a stable connection between the floor reinforcement beam structure 9 and the vehicle floor panel 1, ensuring both the installation firmness of the floor reinforcement beam structure 9 and facilitating maintenance and replacement.
[0034] For six-seater vehicles, in addition to arranging floor reinforcement beam structures 9 along the front-to-back direction at the foot placement positions of the first and second rows of passengers, floor reinforcement beam structures 9 are also arranged along the front-to-back direction at the foot placement positions of the third row of passengers, so that each passenger can enjoy the heating function.
[0035] The vehicle can be, but is not limited to, a pure electric vehicle (PEV / BEV), a hybrid electric vehicle (HEV), a range-extended electric vehicle (REEV), a plug-in hybrid electric vehicle (PHEV), or a new energy vehicle.
[0036] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A floor beam structure, characterized by, It includes an upper heat-conducting reinforcing beam (10) and a lower insulating plate (14). A heating element (11) is arranged inside the upper heat-conducting reinforcing beam (10). The heating element (11) is electrically connected to the vehicle controller. The vehicle controller controls the power supply heating of the heating element (11). The heat generated by the heating element (11) is transferred to the passenger's foot placement position through the upper heat-conducting reinforcing beam (10).
2. The floor beam structure according to claim 1, characterized in that, The upper heat-conducting reinforcing beam (10) is provided with two ports that are respectively connected to the heating body (11), namely the positive terminal (12) and the negative terminal (13).
3. The floor beam structure of claim 2, wherein, The heating element (11) is connected to the reinforcing beam connecting harness (16) through two ports, and the reinforcing beam connecting harness (16) is connected to the vehicle controller through the chassis harness (15).
4. The floor beam structure of claim 1, wherein, The heating element (11) is a heating wire.
5. A vehicle comprising a vehicle body floor panel (1), characterised in that, One or more areas of the vehicle floor panel (1) corresponding to the occupant's foot placement position are provided with floor reinforcement beam structures (9) as described in any one of claims 1 to 4.
6. The vehicle of claim 5, wherein, A floor reinforcement beam structure (9) is provided in each area of the vehicle floor panel (1) corresponding to the occupant's foot placement position.
7. The vehicle of claim 6, wherein, For a four-seat vehicle, the two floor reinforcement beam structures (9) located in the front row are arranged between the front floor front crossbeam (4) and the front seat mounting front crossbeam (6), and are located on the left and right sides of the front floor central passage (5), respectively.
8. The vehicle of claim 7, wherein, For a four-seat vehicle, the two floor reinforcement beam structures (9) located in the rear row are arranged between the front seat installation rear crossbeam (7) and the front floor rear crossbeam (8), and are located on the left and right sides of the front floor central passage (5), respectively.
9. The vehicle of claim 8, wherein, The front floor front crossbeam (4), the front seat mounting front crossbeam (6), the front seat mounting rear crossbeam (7), the front floor rear crossbeam (8), the left longitudinal beam (19), the two floor reinforcement beam structures (9), the front floor central passage (5), and the right longitudinal beam (20) form a four-horizontal and five-vertical frame structure.
10. The vehicle of claim 5, wherein, The floor reinforcement beam structure (9) is provided with multiple mounting holes; multiple mounting studs (2) are welded on the vehicle floor panel (1) in the mounting area of each floor reinforcement beam structure (9), and the floor reinforcement beam structure (9) is mounted on the vehicle floor panel (1) through multiple mounting holes and multiple mounting studs (2) with mounting nuts (3).