Lifting protection structure of vehicle seat and vehicle

Abstract

The utility model discloses a vehicle seat lifting protection structure and a vehicle, the vehicle seat lifting protection structure comprises a seat cross beam assembly, a front floor assembly and a seat lifting mechanism assembly, the seat cross beam assembly is fixed at the bottom of the vehicle seat, the seat lifting mechanism assembly is connected with the seat cross beam assembly, and the front floor assembly is connected with the seat lifting mechanism assembly. The seat lifting mechanism assembly is arranged below the seat beam assembly, the front floor assembly is located below the seat lifting mechanism assembly, and the seat lifting mechanism assembly is fixed to the front floor assembly. And the seat lifting mechanism assembly can drive the seat cross beam assembly to move up and down. The seat lifting mechanism assembly is additionally arranged, so that the height of the seat can be adjusted, seat protection can be enhanced, safety and man-machine performance can be considered, weight and cost are reduced while the height of the seat is adjusted, adaptability is high, and the design freedom degree is higher.

Description

Technical Field

[0001] The utility model relates to the field of vehicle seats, in particular to a lifting protection structure of a vehicle seat and a vehicle. Background Art

[0002] According to CNCAP regulations and the company's 360° electrical safety standards, new energy pure electric vehicles have to meet the safety requirements of side pole collision. This working condition also fully simulates and reproduces the situation in daily life where a vehicle skids and collides with large rigid objects such as large trees, utility poles, and signpost poles, causing the vehicle to suffer huge energy damage or cause major casualties when a collision occurs.

[0003] The most important bearing component in this working condition is the seat crossbeam, which is not only a key structural component of the force transmission path, but also the most direct installation bearing component for the passengers and seats in the car. The bending or instability of the crossbeam during the column collision will directly cause the dummy in this working condition to exceed the standard, and will also cause more serious accidents such as electrolyte leakage or open fire when the battery pack or battery cell is invaded. However, the requirements of human-machine interaction and seat height often limit the design of this key structural component of the vehicle body.

[0004] For large sedans or low-roof cars, due to vehicle height, shape or ergonomic limitations, the Z-direction (height) cross-sectional dimensions of the body seat beam are often compressed, resulting in failure to meet safety performance requirements. Traditional solutions to safety strategies often cost a lot, such as adding one or more lateral force transmission paths, or adding additional energy-absorbing structural parts in areas outside the battery pack coverage; or widening and thickening the original seat beam, resulting in increased costs and weight. These traditional solutions not only affect the surrounding environment layout, but also still cannot solve the risk of local instability of the seat beam during high-speed side column collisions, resulting in half the result with twice the effort.

[0005] For SUVs, MPVs and most commercial vehicles, the dimension chain deduces that the seat beams are designed too high to meet the sitting height requirements of the passengers in the vehicle, and have excess and redundant performance. Utility Model Content

[0006] In response to the above technical problems, the utility model provides a lifting protection structure for a vehicle seat and a vehicle, which can take into account both safety and human-machine performance, adjust the seat height and achieve weight reduction and cost reduction at the same time.

[0007] In a first aspect of the present utility model, there is provided a lifting protection structure for a vehicle seat, which is characterized in that it includes: a seat crossbeam assembly, a front floor assembly, and a seat lifting mechanism assembly. The seat crossbeam assembly is fixed to the bottom of the vehicle seat. The seat lifting mechanism assembly is connected to the seat crossbeam assembly, and the seat lifting mechanism assembly is disposed below the seat crossbeam assembly. The front floor assembly is located below the seat lifting mechanism assembly, and the seat lifting mechanism assembly is fixed to the front floor assembly. The seat lifting mechanism assembly can drive the seat crossbeam assembly to move up and down.

[0008] In an optional embodiment, the seat lifting mechanism assembly includes a lifting mechanism, and the front floor assembly includes a front floor panel, and the lifting mechanism is fixed to the front floor panel.

[0009] In an optional embodiment, the lifting mechanism is a hydraulic lifting mechanism or a pneumatic lifting mechanism.

[0010] In an optional embodiment, the seat crossbeam assembly includes a seat crossbeam, and the seat crossbeam is provided with threaded through holes, and the lifting mechanism is fixed to the threaded through holes by movable nuts or riveting nuts.

[0011] In an optional embodiment, the seat crossbeam assembly includes a seat crossbeam, and the seat crossbeam includes two concave structures, and the two concave structures are respectively fixedly connected to the seat frame base of the seat.

[0012] In an optional embodiment, the seat crossbeam includes a body, and the two concave structures are concave portions formed on the body and recessed downward, and the concave portions are fixedly connected to the seat lifting mechanism assembly.

[0013] In an optional embodiment, the depth of the concave portion is 10 mm to 15 mm.

[0014] In an optional embodiment, the lifting mechanism is welded to the front floor panel.

[0015] In an optional embodiment, the seat crossbeam assembly includes a seat crossbeam, and the seat crossbeam is in the shape of a channel steel or a plate-like structure with a concave portion.

[0016] In a second aspect of the present utility model, there is provided a vehicle, which includes: the lifting protection structure for a vehicle seat according to the first aspect of the present utility model.

[0017] By adding the seat lifting mechanism assembly, the present utility model can not only adjust the height of the seat, but also strengthen the seat protection, and can take into account both safety and human-machine performance, reduce weight and cost while adjusting the seat height, has strong adaptability, and has a higher design freedom. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for use in the embodiments. It should be understood that the following attached drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.

[0019] Figure 1 It is a module schematic diagram of a lifting protection structure of a vehicle seat in an embodiment of the present utility model.

[0020] Figure 2 It is an assembly schematic diagram of a seat crossbeam and a lifting mechanism in an embodiment of the present utility model.

[0021] Figure 3 It is a structural schematic diagram of another vehicle seat and a seat crossbeam in an embodiment of the present utility model.

[0022] Reference numerals: front floor assembly 1; seat crossbeam assembly 2; seat 3; seat lifting mechanism assembly 4; seat frame base 5; bolt 6; movable nut 7; recess 8. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1 , Figure 1 It is a module schematic diagram of a lifting protection structure of a vehicle seat in an embodiment of the present utility model. A lifting protection structure of a vehicle seat provided by the present utility model includes: a seat crossbeam assembly 2, a front floor assembly 1, and a seat lifting mechanism assembly 4. The seat crossbeam assembly 2 is fixed to the bottom of the vehicle seat, and the seat lifting mechanism assembly 4 is fixedly connected to the seat crossbeam assembly 2. The seat lifting mechanism assembly 4 is disposed below the seat crossbeam assembly 2, the front floor assembly 1 is located below the seat lifting mechanism assembly 4, and the seat lifting mechanism assembly 4 is fixed on the front floor assembly 1. The seat lifting mechanism assembly 4 can drive the seat crossbeam assembly 2 to move up and down.

[0025] Different from traditional solutions such as adding load transfer paths, adding energy absorption structural components, or piling up seat crossbeams, the present utility model adds a seat lifting mechanism assembly 4 below the seat crossbeam assembly 2 and fixes the seat lifting mechanism assembly 4 on the front floor assembly 1.

[0026] Based on multi-round simulation and iterative analysis, it is judged that the key factor affecting the side pole impact safety performance lies in the bending resistance of the seat crossbeam. Through sensitivity analysis, increasing the cross-sectional dimension in the height direction of the seat crossbeam is the most efficient and economical way to improve the bending resistance considering cost and weight. Therefore, the seat lifting mechanism assembly 4 can be used to increase the height of the seat crossbeam, thereby increasing the side pole impact safety performance and achieving the effect of protecting the seat 3.

[0027] Specifically, the seat lifting mechanism assembly 4 includes a lifting mechanism. In some embodiments, the lifting mechanism is a hydraulic lifting mechanism or a pneumatic lifting mechanism.

[0028] In some embodiments, the seat lifting mechanism assembly 4 includes components such as a starting rod, a base, a valve body, a valve core, a vertical cylinder guide sleeve, an air chamber, a vertical cylinder, an inner and outer cylinder, a piston rod, a fixed support, a rubber sleeve ring seal, a guide sleeve, etc. The seat lifting mechanism assembly 4 can be obtained by procurement, and its specific structure is not limited.

[0029] The front floor assembly 1 includes a front floor panel, and the lifting mechanism is fixed on the front floor panel. In some embodiments, the lifting mechanism can be directly welded to the front floor panel. Of course, in some other embodiments, a fixing structure can also be used to fix the lifting mechanism to the front floor panel. The lifting mechanism uses the front floor panel as a support, and the lifting mechanism can drive the seat crossbeam to move up and down through the piston rod, realizing the rising and falling of the seat 3.

[0030] Further, as Figure 2 shown, the seat crossbeam assembly 2 includes a seat crossbeam, and threaded through holes are provided on the seat crossbeam. The lifting mechanism is fixed to the threaded through holes through movable nuts 7 or blind rivet nuts. In some embodiments, the piston rod of the lifting mechanism can be fixed to the threaded through holes.

[0031] Exemplarily, the threaded through holes on the seat crossbeam are fixed to the lifting mechanism through the movable nuts 7 or blind rivet nuts of the seat, and at the same time, the lifting mechanism is connected and fixed to the seat crossbeam by bolts 6, and then fixed to the front floor panel in a spot welding form on the integrated welding line.

[0032] As Figure 2As shown, the seat crossbeam assembly 2 includes a seat crossbeam, and the seat crossbeam is in the shape of a channel steel. For common sedans, the seat frame base 5 of the seat 3 can be directly fixed to the channel steel-shaped seat crossbeam.

[0033] For SUVs, MPVs, and most commercial vehicle models, the initial height of the seat should not be too high. To ensure sufficient lifting stroke, the shape of the seat crossbeam can be changed to increase space to meet the stroke requirements.

[0034] Furthermore, specifically as Figure 3 shown, in some embodiments, the seat crossbeam is a plate-like structure with recesses. The seat crossbeam includes two concave structures, and the two concave structures are respectively fixedly connected to the seat frame base 5 of the seat.

[0035] The seat crossbeam includes a body, and the two concave structures are recesses 8 formed on the body and recessed downward. In some embodiments, the depth of the recess 8 is 10 mm to 15 mm. Therefore, the rising stroke of the seat can be increased by 10 mm to 15 mm. The recess 8 is fixedly connected to the seat lifting mechanism assembly 4, and the lifting mechanism assembly is located below the seat crossbeam.

[0036] For low-roof vehicles, the piston rod of the lifting mechanism is set to the highest stroke at the factory, and the human-machine is at the highest point; for SUVs, MPVs, and commercial vehicles, the piston rod of the lifting mechanism is set to the lowest stroke, and the human-machine is at the lowest point.

[0037] The utility model can increase the height of the seat crossbeam by adding a seat lifting mechanism assembly, which provides protection for the seat when the side pillar hits the vehicle body crossbeam. For low-roof vehicles, by raising the height of the seat crossbeam and increasing the form of the seat lifting mechanism, both safety and human-machine performance are taken into account. For SUVs, MPVs, and some commercial vehicle models, by lowering the seat crossbeam and adjusting the seat height, weight reduction and cost reduction are achieved; the seat lifting mechanism assembly is fixed to the seat crossbeam by a screwed connection, with strong adaptability and the characteristic of higher design freedom.

[0038] In addition to the above-mentioned lifting protection structure of the vehicle seat, the utility model also provides a vehicle, which is an automobile, an electric vehicle, or other vehicles including the lifting protection structure of the vehicle seat. The lifting protection structure of the vehicle seat includes: a seat crossbeam assembly, a front floor assembly, and a seat lifting mechanism assembly. The seat crossbeam assembly is fixed to the bottom of the vehicle seat. The seat lifting mechanism assembly is connected to the seat crossbeam assembly, and the seat lifting mechanism assembly is placed below the seat crossbeam assembly. The front floor assembly is located below the seat lifting mechanism assembly. The seat lifting mechanism assembly is fixed to the front floor assembly; the seat lifting mechanism assembly can drive the seat crossbeam assembly to move up and down.

[0039] Further, the seat lifting mechanism assembly includes a lifting mechanism, the front floor assembly includes a front floor panel, and the lifting mechanism is fixed to the front floor panel.

[0040] Further, the lifting mechanism is a hydraulic lifting mechanism or a pneumatic lifting mechanism.

[0041] Further, the seat crossbeam assembly includes a seat crossbeam, threaded through holes are provided on the seat crossbeam, and the lifting mechanism is fixed to the threaded through holes by movable nuts or rivet nuts.

[0042] Further, the seat crossbeam assembly includes a seat crossbeam, the seat crossbeam includes two concave structures, and the two concave structures are respectively fixedly connected to the seat frame base of the seat.

[0043] Further, the seat crossbeam includes a body, the two concave structures are concave portions formed on the body and recessed downward, and the concave portions are fixedly connected to the seat lifting mechanism assembly.

[0044] Further, the depth of the concave portion is 10 mm to 15 mm.

[0045] Further, the lifting mechanism is welded to the front floor panel.

[0046] Further, the seat crossbeam assembly includes a seat crossbeam, and the seat crossbeam is in the shape of a channel steel or a plate-like structure with concave portions.

[0047] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lifting protection structure for a vehicle seat, characterized in that, Comprising: A seat crossbeam assembly, a front floor assembly, and a seat lifting mechanism assembly. The seat crossbeam assembly is fixed to the bottom of a vehicle seat. The seat lifting mechanism assembly is connected to the seat crossbeam assembly and is disposed below the seat crossbeam assembly. The front floor assembly is located below the seat lifting mechanism assembly, and the seat lifting mechanism assembly is fixed to the front floor assembly. The seat lifting mechanism assembly is capable of driving the seat crossbeam assembly to move up and down.

2. The lifting protection structure of the vehicle seat according to claim 1, characterized in that, The seat lifting mechanism assembly includes a lifting mechanism, and the front floor assembly includes a front floor panel. The lifting mechanism is fixed to the front floor panel.

3. The lifting protection structure of the vehicle seat according to claim 2, characterized in that, The lifting mechanism is a hydraulic lifting mechanism or a pneumatic lifting mechanism.

4. The lifting protection structure of the vehicle seat according to claim 2, characterized in that, The seat crossbeam assembly includes a seat crossbeam. Threaded through holes are provided on the seat crossbeam, and the lifting mechanism is fixed to the threaded through holes through movable nuts or blind rivet nuts.

5. The lifting protection structure of the vehicle seat according to claim 1, characterized in that, The seat crossbeam assembly includes a seat crossbeam. The seat crossbeam includes two concave structures, and the two concave structures are respectively fixedly connected to the seat frame base of the seat.

6. The lifting protection structure of the vehicle seat according to claim 5, wherein, The seat crossbeam includes a body, and the two concave structures are recesses formed on the body and recessed downward. The recesses are fixedly connected to the seat lifting mechanism assembly.

7. The lifting protection structure of the vehicle seat according to claim 6, wherein The depth of the recess is 10 mm to 15 mm.

8. The lifting protection structure of the vehicle seat according to claim 2, characterized in that, The lifting mechanism is welded to the front floor panel.

9. The lifting protection structure of the vehicle seat according to claim 1, characterized in that, The seat crossbeam assembly includes a seat crossbeam. The seat crossbeam is in the shape of a channel steel or a plate-like structure with recesses.

10. A vehicle, characterized in that, Comprising: The lifting protection structure of the vehicle seat according to any one of claims 1 to 9.

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