A rocker beam assembly and vehicle

CN224603017UActive Publication Date: 2026-08-07DEEPAL AUTOMOBILE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEEPAL AUTOMOBILE TECH CO LTD
Filing Date
2025-09-03
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

部分增浮模块为布置在车辆内部的轻质材料块,需要在车辆内部为轻质材料块提供布置空间,例如在底盘的底部设置布置空间,会限制车身结构设计自由度,可能会影响车辆行驶性能;

Benefits of technology

[0015] This invention can improve the water safety of vehicles, and makes reasonable use of the internal space of the door sill beam to provide space for the arrangement and deployment of multiple airbags. It is easy to arrange and easy to implement.

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Abstract

The utility model relates to a kind of door sill beam assemblies, including door sill beam and multiple air bags, one or more reinforcing members are provided in door sill beam, one or more reinforcing members divide the inner cavity of door sill beam into multiple air bag mounting chambers, multiple air bag mounting chambers are sequentially arranged along the length direction of door sill beam, multiple air bags are respectively installed in multiple air bag mounting chambers, multiple air bags can be inflated and unfolded, to increase the buoyancy of door sill beam assembly.The utility model also proposes a kind of vehicle.The utility model can improve the water safety of vehicle, reasonably utilize the internal space of door sill beam to provide arrangement space and unfolding space for multiple air bags, with the characteristics of easy to arrange and easy to realize.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a door sill beam assembly and a vehicle. Background Technology

[0002] When a vehicle falls into water or wades through deep water, it will sink in a short time, making occupant escape and vehicle rescue difficult. Some vehicles are equipped with buoyancy-enhancing modules to increase buoyancy in the water, which can buy more time for occupant escape and create more favorable conditions for vehicle rescue.

[0003] However, existing solutions for installing buoyancy enhancement modules in vehicles may have the following technical problems: Some of the buoyancy enhancement modules are lightweight material blocks placed inside the vehicle. It is necessary to provide space for the lightweight material blocks inside the vehicle, such as setting up space at the bottom of the chassis. This will limit the freedom of body structure design and may affect the vehicle's driving performance. Some buoyancy modules are airbags arranged inside the vehicle. Not only is it necessary to provide space for the airbags inside the vehicle, but it is also necessary to provide an airbag deployment channel to the outside of the vehicle. Setting up an airbag deployment channel on the vehicle presents problems of structural complexity and high implementation difficulty. When a vehicle falls into water, it may lose control of its posture and sink into the water in a relatively short time. Utility Model Content

[0004] The purpose of this invention is to provide a door sill beam assembly and a vehicle to alleviate or eliminate at least one of the aforementioned technical problems.

[0005] The present invention discloses a sill beam assembly, comprising a sill beam and multiple airbags. One or more reinforcing members are provided inside the sill beam, and the one or more reinforcing members divide the inner cavity of the sill beam into multiple airbag mounting chambers. The multiple airbag mounting chambers are arranged sequentially along the length direction of the sill beam, and the multiple airbags are respectively installed in the multiple airbag mounting chambers. The multiple airbags can be deployed to increase the buoyancy of the sill beam assembly.

[0006] Optionally, the plurality of airbags are elongated strip structures whose length extends along the length direction of the sill beam.

[0007] Optionally, one or more of the reinforcing members are disposed in the middle section of the inner cavity, and the one or more of the reinforcing members divide the inner cavity into two airbag mounting chambers. The sill beam assembly includes two airbags, and the two airbags are respectively installed in the two airbag mounting chambers.

[0008] Optionally, the two ends of the threshold beam are respectively provided with a first end wall and a second end wall, and the middle section of the inner cavity is provided with two reinforcing members. One airbag mounting chamber is located between the first end wall and one of the reinforcing members, and the other airbag mounting chamber is located between the second end wall and the other reinforcing member.

[0009] Optionally, the multiple airbags are respectively installed on the side wall of the multiple airbag installation chambers on the inner side of the vehicle.

[0010] Optionally, the multiple airbags are detachably installed in the multiple airbag mounting chambers.

[0011] Optionally, a first bracket for mounting the airbag is welded into each of the airbag mounting chambers.

[0012] Optionally, each airbag is provided with a second bracket, the first bracket is provided with a first hole, the second bracket is provided with a second hole, the first bracket and the second bracket are fixedly connected by fasteners that cooperate with the first hole and the second hole, and the first hole and / or the second hole is a strip hole.

[0013] This utility model also proposes a vehicle including the sill beam assembly described in any of the above claims.

[0014] Optionally, the system also includes a vehicle attitude sensing module and an air supply system. The vehicle attitude sensing module can detect the buoyancy parameters of the vehicle, and the air supply system is connected to multiple airbags. The air supply system is configured to adjust the deployment state of the multiple airbags according to a buoyancy adjustment strategy corresponding to the buoyancy parameters, so as to adjust the buoyancy of the vehicle.

[0015] This invention can improve the water safety of vehicles, and makes reasonable use of the internal space of the door sill beam to provide space for the arrangement and deployment of multiple airbags. It is easy to arrange and easy to implement. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the sill beam assembly described in some embodiments; Figure 2 This is a schematic diagram of the sill beam assembly described in some embodiments when the airbag is in the deployed state; Figure 3 This is a cross-sectional view of the sill beam assembly described in some embodiments; Figure 4 This is a cross-sectional view of the sill beam assembly described in some embodiments when the airbag is in the deployed state.

[0017] In the figure, 1—sill beam, 101—inner sill beam, 102—outer sill beam, 103—first end wall, 104—second end wall, 2—first reinforcing member, 3—second reinforcing member, 4—first airbag mounting chamber, 5—second airbag mounting chamber, 6—first airbag, 7—first bolt, 8—second airbag, 9—second bolt. Detailed Implementation

[0018] 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 easily 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.

[0019] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0020] like Figure 1 and Figure 3 The sill beam assembly shown includes a sill beam 1 and multiple airbags. One or more reinforcing members are provided inside the sill beam 1, and the one or more reinforcing members divide the inner cavity of the sill beam 1 into multiple airbag mounting chambers. The multiple airbag mounting chambers are arranged sequentially along the length direction of the sill beam 1, and multiple airbags are respectively installed in the multiple airbag mounting chambers. The multiple airbags can be deployed to increase the buoyancy of the sill beam assembly.

[0021] like Figure 2 and Figure 4 As shown, when the vehicle falls into water using the aforementioned door sill beam assembly, the multiple airbags inside the door sill beam 1 inflate and deploy, increasing the buoyancy of the door sill beam assembly and thus increasing the buoyancy of the vehicle. Increased buoyancy provides more time for occupants to escape and for vehicle rescue, creating more favorable conditions.

[0022] In the aforementioned door sill beam assembly, the space inside the door sill beam 1 is used to arrange the airbag, which reduces the restrictions on vehicle structural design.

[0023] In the aforementioned sill beam assembly, the inner cavity of the sill beam 1 is divided into multiple airbag mounting chambers by reinforcing members. The reinforcing members enhance the structural strength of the sill beam 1, and the multiple airbag mounting chambers formed can provide space for the arrangement and deployment of multiple airbags, taking into account both vehicle body strength and airbag arrangement, and are easy to implement.

[0024] In the aforementioned door sill beam assembly, multiple airbags are arranged sequentially along the length of door sill beam 1. Firstly, when the vehicle falls into water, the multiple deployed airbags provide multi-point support, helping to maintain vehicle stability. Secondly, the deployment state of each airbag can be adjusted to regulate its buoyancy, thereby adjusting the vehicle's floating posture and enhancing its water-crossing safety.

[0025] In some embodiments, the multiple airbags are elongated structures extending along the length of the sill beam 1. The elongated airbag structure better matches the elongated sill beam 1, providing better buoyancy support for the vehicle. In specific implementations, to ensure that the airbags cover critical support areas, the inflated length of the airbags is 40%-45% of the length of the corresponding airbag mounting chamber.

[0026] As a preferred example, one or more reinforcing members are disposed in the middle section of the inner cavity, dividing the inner cavity into two airbag mounting chambers. The sill beam assembly includes two airbags, which are respectively installed in the two airbag mounting chambers, namely a first airbag mounting chamber 4 and a second airbag mounting chamber 5. The two airbags are a first airbag 6 located in the first airbag mounting chamber 4 and a second airbag 8 located in the second airbag mounting chamber 5. Arranging the reinforcing members in the middle section of the sill beam 1 can meet the strength requirements of the sill beam 1. Two airbag mounting chambers are formed within the aforementioned sill beam 1, and two airbags can be arranged in each sill beam 1, which can meet the requirements of multi-point support and vehicle buoyancy adjustment. Moreover, this solution is easy to implement.

[0027] In some embodiments, the two ends of the sill beam 1 are respectively provided with a first end wall 103 and a second end wall 104, and the middle section of the inner cavity is provided with two reinforcing members. The two reinforcing members are arranged at intervals along the length of the sill beam 1, namely the first reinforcing member 2 and the second reinforcing member 3. The first airbag mounting chamber 4 is located between the first end wall 103 and the first reinforcing member 2, and the second airbag mounting chamber 5 is located between the second end wall 104 and the second reinforcing member 3. With the above solution, firstly, the spaced-apart first reinforcing member 2 and the second reinforcing member 3 can better ensure the structural strength of the middle section of the sill beam 1. Secondly, both ends of the first airbag mounting chamber 4 and the second airbag mounting chamber 5 have end walls, forming a cavity-like reinforcing structure, which can further ensure the structural strength of the sill beam 1.

[0028] In some embodiments, multiple airbags are respectively installed on the side walls of multiple airbag installation chambers on the inner side of the vehicle. This approach reduces the impact of the airbags on the structural performance of the door sill beam 1.

[0029] In some embodiments, multiple airbags are detachably installed in multiple airbag installation chambers. Using the above technical solution, the airbags are detachable, facilitating later maintenance and replacement. In specific implementations, the multiple airbags can be fixedly installed using fasteners, such as bolts and nuts.

[0030] As a specific example, the first airbag 6 is fixedly installed in the first airbag installation chamber 4 by two first bolts 7 and two first nuts, and the second airbag 8 is fixedly installed in the second airbag installation chamber 5 by two second bolts 9 and two second nuts.

[0031] In some embodiments, a first bracket for mounting the airbag is welded into each airbag mounting chamber. By providing the first bracket, mounting holes can be provided on the bracket, eliminating the need for mounting holes on the sill beam 1 to achieve fixed mounting of the airbag. This reduces the impact on the structural performance of the sill beam 1 and helps ensure the airtightness of the sill beam 1. In specific implementations, the first bracket can be a sheet metal bracket, and it can be spot-welded into the sill beam 1.

[0032] In some embodiments, each airbag is provided with a second bracket, a first bracket has a first hole, and a second bracket has a second hole. The first and second brackets are fixedly connected by fasteners that mate with the first and second holes. The first and / or second holes are strip-shaped holes. Using the above technical solution, the fixed connection of the first and second brackets with fasteners ensures that the airbag is securely installed, preventing loosening, abnormal noise, or interference with the vehicle body structure. Making the first and / or second holes strip-shaped allows for slight displacement of the airbag during inflation, preventing the airbag structure from jamming or rupturing.

[0033] As a specific example, each airbag is equipped with multiple second supports, and each airbag mounting chamber is equipped with multiple first supports, each corresponding to one of the multiple second supports. The multiple second supports are spaced apart along the length of the sill beam 1, and the fasteners can be stainless steel expansion bolts. This mounting structure ensures the stable installation of the airbag and prevents it from shifting in vibration and pressure environments. The mounting structure can resist high-frequency vibration, water impact, and expansion tensile stress.

[0034] As a preferred example, the sill beam 1 includes an inner sill beam plate 101 and an outer sill beam plate 102 welded together. A first end wall 103 is formed by end plates welded to one end of the inner sill beam plate 101 and the outer sill beam plate 102. A second end wall 104 is formed by the ends of the inner sill beam plate 101 and the outer sill beam plate 102. The first reinforcing member 2 and the second reinforcing member 3 can be fixedly connected to the inner sill beam plate 101 by welding, and the first reinforcing member 2 and the second reinforcing member 3 can be fixedly connected to the outer sill beam plate 102 by welding. The first bracket can be fixedly connected to the inner sill beam plate 101 by welding. All of the above welding can be done by spot welding.

[0035] This utility model also proposes a vehicle including the sill beam assembly described in any of the above claims.

[0036] In some embodiments, the vehicle further includes a vehicle attitude sensing module and an air supply system. The vehicle attitude sensing module is capable of detecting the vehicle's buoyancy parameters, and the air supply system is connected to multiple airbags. The air supply system is configured to adjust the deployment state of the multiple airbags according to a buoyancy adjustment strategy corresponding to the buoyancy parameters, so as to adjust the vehicle's buoyancy.

[0037] In some embodiments, the vehicle also includes a wading height sensor and an on-board control unit. The wading height sensor, the vehicle attitude sensing module, and the air supply system are all communicatively connected to the on-board control unit, for example, by using the vehicle's CAN bus.

[0038] In practical implementation, the air supply system includes an air pressure generating module, the output of which is connected to multiple airbags via pipelines. The air supply system is equipped with multiple solenoid valves, each corresponding to the inflation / deflation pipeline of a specific airbag, to achieve independent control of the inflation / deflation of each airbag and to control the inflation and deflation volume of each airbag.

[0039] The air pressure generating module and the solenoid valve are controlled by the vehicle control unit. The vehicle control unit receives signals from the wading height sensor and the vehicle attitude sensing module, determines the vehicle's wading depth and floating attitude according to preset rules, and makes corresponding decisions based on the vehicle's wading depth and floating attitude, and outputs control commands to control the air supply system to perform corresponding operations.

[0040] In practice, the air pressure generating module can be powered by the vehicle's onboard power supply. Floating attitude parameters include, but are not limited to, vehicle tilt angle, pitch angle, and roll angle.

[0041] After a vehicle falls into water, when the onboard control unit determines, based on received signals, that the vehicle's wading depth exceeds a safe threshold or that the vehicle body shows a sinking trend, it sends an inflation command to control the air supply system to start inflating. In practice, the entire inflation process can be completed within 5 to 10 seconds. After inflation, the airbag quickly occupies the internal space of the sill beam 1, and through its own deformation, it conforms to the wall of the airbag mounting chamber, maximizing buoyancy for the vehicle and assisting in lifting or maintaining its surface posture. Moreover, the onboard control unit can also control the air supply system according to the vehicle's current posture to adjust the inflation and deflation of each airbag, controlling the amount of inflation and deflation of each airbag individually to adjust the vehicle's floating posture to a more stable floating posture.

[0042] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model. In the description of this specification, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

Claims

1. A door sill beam assembly, characterized in that, The sill beam (1) includes a sill beam (1) and multiple airbags (6, 8). One or more reinforcing members (2, 3) are provided inside the sill beam (1). The one or more reinforcing members (2, 3) divide the inner cavity of the sill beam (1) into multiple airbag mounting chambers (4, 5). The multiple airbag mounting chambers (4, 5) are arranged sequentially along the length direction of the sill beam (1). The multiple airbags (6, 8) are respectively installed in the multiple airbag mounting chambers (4, 5). The multiple airbags (6, 8) can be deployed to increase the buoyancy of the sill beam assembly.

2. The sill beam assembly according to claim 1, characterized in that, The multiple airbags (6, 8) are elongated structures whose length extends along the length direction of the threshold beam (1).

3. The sill beam assembly according to claim 1, characterized in that, One or more of the reinforcing members (2, 3) are disposed in the middle section of the inner cavity, and the one or more of the reinforcing members (2, 3) divide the inner cavity into two airbag mounting chambers (4, 5). The sill beam assembly includes two airbags (6, 8), and the two airbags (6, 8) are respectively installed in the two airbag mounting chambers (4, 5).

4. The sill beam assembly according to claim 3, characterized in that, The threshold beam (1) is provided with a first end wall (103) and a second end wall (104) at both ends. The middle section of the inner cavity is provided with two reinforcing members (2, 3). One airbag mounting chamber (4, 5) is located between the first end wall (103) and one reinforcing member (2, 3), and the other airbag mounting chamber (4, 5) is located between the second end wall (104) and the other reinforcing member (2, 3).

5. The sill beam assembly according to claim 1, characterized in that, The multiple airbags (6, 8) are respectively installed on the side wall of the multiple airbag installation chambers (4, 5) on the inside side of the vehicle.

6. The sill beam assembly according to claim 1, characterized in that, The multiple airbags (6, 8) are detachably installed in the multiple airbag installation chambers (4, 5).

7. The sill beam assembly according to claim 1, characterized in that, Each of the airbag mounting chambers (4, 5) is welded with a first bracket for mounting the airbag (6, 8).

8. The sill beam assembly according to claim 7, characterized in that, Each of the airbags (6, 8) is provided with a second bracket. The first bracket is provided with a first hole, and the second bracket is provided with a second hole. The first bracket and the second bracket are fixedly connected by fasteners that cooperate with the first hole and the second hole. The first hole and / or the second hole is a strip-shaped hole.

9. A vehicle, characterized in that, Includes the sill beam assembly according to any one of claims 1-8.

10. The vehicle according to claim 9, characterized in that, It also includes a vehicle attitude sensing module and an air supply system. The vehicle attitude sensing module can detect the buoyancy parameters of the vehicle. The air supply system is connected to multiple airbags (6, 8) and is configured to adjust the deployment state of the multiple airbags (6, 8) according to a buoyancy adjustment strategy corresponding to the buoyancy parameters, so as to adjust the buoyancy of the vehicle.