Electric sliding rail assembly and vehicle

Abstract

The utility model discloses an electric slide rail assembly and a vehicle, the electric slide rail assembly comprises a slide rail assembly (1000) and a driving assembly (2000), the slide rail assembly (1000) comprises an upper rail part (1100) and a lower rail part (1200), the lower rail part (1200) is used for fixed arrangement, the upper rail part (1100) is assembled in the lower rail part (1200) in a sliding mode, the driving assembly (2000) comprises a driving support (2100), and the driving support (2100) is used for supporting the upper rail part (1100) and the lower rail part (1200). The distance between the lower end face of the driving assembly (2000) and the upper end face of the lower rail component (1200) is larger than 15 mm. The universality of the electric sliding rail assembly is relatively high.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to an electric slide rail assembly and a vehicle. Background Technology

[0002] With the development and application of new energy vehicles and smart cockpits, the demand for electric slide rail assemblies is constantly increasing, and the application scenarios for electric slide rail assemblies are also expanding. Currently, different structural forms of electric slide rail assemblies are used for different application environments, resulting in a relatively large variety of electric slide rail assemblies and relatively poor versatility.

[0003] Therefore, how to provide a solution to overcome or alleviate the above-mentioned defects remains a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to provide an electric slide rail assembly and a vehicle, wherein the electric slide rail assembly has relatively high versatility.

[0005] To solve the above-mentioned technical problems, this utility model provides an electric slide rail assembly, including a slide rail assembly and a drive assembly. The slide rail assembly includes an upper rail component and a lower rail component. The lower rail component is fixedly installed, and the upper rail component is slidably assembled in the lower rail component. The drive assembly includes a drive bracket, and the distance between the lower end face of the drive assembly and the upper end face of the lower rail component is greater than 15mm.

[0006] In this embodiment of the invention, the distance H between the lower end face of the drive assembly and the upper end face of the lower rail component is greater than 15mm. This allows for a relatively large distance between the drive assembly and the lower rail component, enabling the electric slide rail assembly provided by this embodiment to be applied to both situations where the lower rail component is positioned below the vehicle's interior carpet and situations where the lower rail component is positioned above the vehicle's interior carpet, thus improving the versatility of the electric slide rail assembly provided by this embodiment.

[0007] Optionally, the drive assembly further includes a drive motor and a gearbox, the gearbox being inserted through the upper rail component, the gearbox including at least three transmission gears arranged in the vertical direction.

[0008] Optionally, the gearbox includes a gearbox body and a shock absorber, the shock absorber being disposed between the gearbox body and the upper rail component.

[0009] Optionally, the upper rail component includes an upper rail top plate, two upper rail side plates, and two upper rail outward flanges; the lower rail component includes a lower rail bottom plate and two lower rail sides. Each lower rail side includes a lower rail side plate, a lower rail top plate, and a lower rail inward flange. The lower rail top plate and the lower rail side plates are arranged at an angle, and the lower rail inward flange and the lower rail top plate are arranged at an angle. The two upper rail outward flanges are respectively inserted into the two lower rail sides. The extension direction of at least a portion of the end of the upper rail outward flange can point to the lower rail top plate, or the extension direction of at least a portion of the end of the upper rail outward flange can point to the connection between the lower rail top plate and the lower rail inward flange.

[0010] Optionally, the lower rail side plate includes a first lower rail plate body, a second lower rail plate body, and a third lower rail plate body connected to each other. The first lower rail plate body is connected to the lower rail bottom plate, and the third lower rail plate body is connected to the lower rail top plate.

[0011] Optionally, the upper rail outward flange includes a first upper rail plate, a second upper rail plate, and a third upper rail plate connected in sequence, wherein the first upper rail plate is connected to the upper rail side plate.

[0012] Optionally, the slide rail assembly further includes a rolling support component disposed between the outer flange of the upper rail and the side plate of the lower rail; the rolling support component includes a first rolling element, a second rolling element and a support base, the first rolling element being rotatably disposed at the upper end of the support base, and the second rolling element being rotatably disposed at the lower end of the support base.

[0013] Optionally, the extension direction of the slide rail assembly is a first direction; in the same rolling support component, the first rolling element and the second rolling element are staggered along the first direction; and / or, in the same rolling support component, the distance between two adjacent first rolling elements along the first direction is less than the distance between two adjacent second rolling elements along the first direction.

[0014] Optionally, the top surface of the upper rail top plate is a plane.

[0015] This utility model also provides a vehicle, including a vehicle body, a seat body and the above-mentioned electric slide rail assembly, wherein the upper rail component is connected to the seat body and the lower rail component is connected to the vehicle body.

[0016] Since the electric slide rail assembly described above already possesses the aforementioned technical effects, vehicles equipped with this electric slide rail assembly should also possess similar technical effects, so further details will not be provided here. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the electric slide rail assembly provided in the embodiment of this utility model;

[0018] Figure 2 for Figure 1 A view along the first direction X;

[0019] Figure 3A This is a connection structure diagram of the drive assembly and the slide rail assembly;

[0020] Figure 3B This is a diagram showing the connection structure between the gearbox and the lead screw.

[0021] Figure 3C This is an exploded view of the gearbox;

[0022] Figure 3D An exploded view of each stage of the transmission gears in the gearbox;

[0023] Figure 4 This is a structural diagram of the first implementation of the slide rail assembly;

[0024] Figure 5 for Figure 4 Simplified stress analysis diagram of the middle slide rail assembly when peeling occurs under stress;

[0025] Figure 6 A simplified force analysis diagram of a slide rail assembly in the prior art when it peels off under stress;

[0026] Figure 7 This is a structural diagram of the second implementation of the slide rail assembly;

[0027] Figure 8 This is a structural diagram of the third implementation method of the slide rail assembly;

[0028] Figure 9 This is a structural diagram of the fourth implementation method of the slide rail assembly;

[0029] Figure 10 This is a structural diagram of the fifth implementation method of the slide rail assembly;

[0030] Figure 11 for Figure 4 Simulation experimental diagram of the anti-slant tensile strength of the middle sliding rail assembly;

[0031] Figure 12 for Figure 11 The curve showing the change in anti-diagonal tensile strength during the simulation experiment;

[0032] Figure 13 This is an exploded view of the slide rail assembly;

[0033] Figure 14 for Figure 13 A schematic diagram of the structure of the rolling support component.

[0034] Figure label:

[0035] 1000-Slide rail assembly; 1100-Upper rail component; 1110-Upper rail top plate; 1120-Upper rail side plate; 1130-Upper rail outer flange; 1131-First upper rail plate; 1132-Second upper rail plate; 1133-Third upper rail plate; 1140-Connecting column; 1200-Lower rail component; 1210-Lower rail bottom plate; 1220-Lower rail side; 1221-Lower rail side plate; 1221A-First lower rail plate; 1221B-Second lower rail plate; 1221C-Third lower rail plate; 1222-Lower rail top plate; 1223-Lower rail inner flange; 1300-Rolling support component; 1310-First rolling element; 1320-Second rolling element; 1330-Support base;

[0036] 2000-Drive assembly; 2100-Drive bracket; 2200-Drive motor; 2300-Gearbox; 2310-First housing; 2320-Second housing; 2330-Shock absorber; 2340-Worm gear; 2350-Transmission gear; 2360-Bearing; 2370-Busset; 2380-Shim; 2400-Lead screw assembly; 2410-Lead screw. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] In the description of the embodiments of this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0039] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0040] The directional terms mentioned in the embodiments of this utility model, such as "inner" and "outer", are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0041] In the description of embodiments of this utility model, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0042] In the description of this utility model embodiment, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0043] Please refer to Figure 1-Figure 3D , Figure 1 This is a schematic diagram of the electric slide rail assembly provided in the embodiment of this utility model; Figure 2 for Figure 1 A view along the first direction X; Figure 3A This is a connection structure diagram of the drive assembly and the slide rail assembly; Figure 3B This is a diagram showing the connection structure between the gearbox and the lead screw. Figure 3C This is an exploded view of the gearbox; Figure 3D This is an exploded view of each stage of the transmission gears in the gearbox.

[0044] like Figure 1 As shown, this utility model embodiment provides an electric slide rail assembly, including a slide rail assembly 1000 and a drive assembly 2000.

[0045] The slide rail assembly 1000 includes an upper rail component 1100 and a lower rail component 1200. The upper rail component 1100 can be inserted into the lower rail component 1200 and can slide along the lower rail component 1200.

[0046] In this embodiment of the invention, a first direction X, a second direction Y, and a third direction Z can be defined. The first direction X can specifically be the extension direction of the slide rail assembly 1000; in some implementations, the first direction X is also referred to as the length direction of the slide rail assembly 1000. In the mounting surface of the slide rail assembly 1000, the direction forming an angle with the first direction X is the second direction Y, such as 90 degrees; in some implementations, the second direction Y is also referred to as the width direction of the slide rail assembly 1000. The direction perpendicular to the mounting surface of the slide rail assembly 1000 is the third direction Z; in some implementations, the third direction Z is also referred to as the vertical direction, or the height direction of the slide rail assembly 1000, etc.

[0047] In practical applications, the slide rail assemblies 1000 are usually present in pairs, that is, the electric slide rail assembly may include two slide rail assemblies 1000, and the two slide rail assemblies 1000 may be arranged at intervals along the second direction Y.

[0048] Combination Figures 1-3A The drive assembly 2000 may include a drive bracket 2100, a drive motor 2200, a gearbox 2300, and a lead screw assembly 2400. The drive bracket 2100 may be horizontally mounted in the upper rail component 1100 of the two slide rail assemblies 1000. The drive motor 2200 may be mounted on the drive bracket 2100 and connected to the gearbox 2300 via a flexible shaft or the like. The gearbox 2300 may be at least partially inserted into the upper rail component 1100 and may be connected to the lead screw assembly 2400 mounted on the lower rail component 1200, so that, driven by the drive motor 2200, the upper rail component 1100 is displaced relative to the lower rail component 1200 along a first direction X.

[0049] In this embodiment of the invention, the distance H between the lower end face of the drive assembly 2000 and the upper end face of the lower rail component 1200 is greater than 15mm. This allows for a relatively large distance between the drive assembly 2000 and the lower rail component 1200, enabling the electric slide rail assembly provided in this embodiment to be applied to both configurations where the lower rail component 1200 is positioned below the vehicle interior carpet and configurations where the lower rail component 1200 is positioned above the vehicle interior carpet, thus improving the versatility of the electric slide rail assembly provided in this embodiment.

[0050] Specifically, such as Figure 3C and Figure 3D As shown in the present invention, at least three transmission gears 2310 can be provided in the gearbox 2300. Each transmission gear 2310 can be arranged along the third direction Z, thereby raising the installation position of the drive assembly 2000, that is, increasing the distance H between the lower surface of the drive assembly 2000 and the upper surface of the lower rail component 1200.

[0051] In more detail, the transmission wheel may include a worm gear 2340 and three transmission gears 2350. The worm gear 2340 can be connected to the flexible shaft of the drive motor 2200, etc., to introduce the rotational driving force of the drive motor 2200. The three transmission gears 2350 can be arranged sequentially along the third direction Z, as shown in the figure. Figure 3C and Figure 3DRegarding the orientation and positional relationship, the uppermost transmission gear 2350 can be connected to the worm gear 2340, and the lowermost transmission gear 2350 can serve as an output wheel to connect with the lead screw 2410 of the lead screw assembly 2400. Both ends of the lowermost transmission gear 2350 can be provided with bushings 2370 and washers 2380 to support the two ends of the transmission gear 2350. The other two transmission gears 2350 can be provided with bearings 2360 at both ends, which can be ball bearings or roller bearings, etc.

[0052] It should be understood that the lower surface of the drive assembly 2000 refers to the lowest surface of the drive assembly 2000 in the third direction Z. This lowest surface can be the lower end surface of the drive bracket 2100 or the lower end surface of the drive motor 2200, which is related to the installation position of the drive motor 2200 on the drive bracket 2100.

[0053] In some alternative implementations, gearbox 2300 may include a gearbox body (not shown in the figure) and shock absorber 2330.

[0054] The shock absorber 2330 can specifically be a buffer pad, etc. The shock absorber 2330 can be disposed between the housing body and the upper rail component 1100 to reduce the vibration and abnormal noise between the housing body and the upper rail component 1100 during the operation of the electric slide rail assembly, thereby improving the product quality of the electric slide rail assembly provided in this embodiment of the invention.

[0055] A more detailed explanation, such as Figure 3B and Figure 3C The number of shock absorbers 2330 can be two. The two shock absorbers 2330 can be arranged on both sides of the main body of the housing along the first direction X, and can be connected to the main body of the housing by means of interference fit or other means. The main body of the housing can adopt a split structure, including a first housing 2310 and a second housing 2320 arranged opposite to each other along the second direction Y. Each transmission wheel can be arranged between the first housing 2310 and the second housing 2320. The first housing 2310 and the second housing 2320 can be connected by fasteners such as screws.

[0056] One crucial function of sliding rail assemblies is protecting the safety of vehicle occupants. A key parameter is their tensile strength. Tensile strength specifically refers to the strength of the sliding rail assembly before failure under impact loading, and it's a critical indicator for evaluating the performance of the sliding rail assembly in a vehicle collision. In existing technologies, the tensile strength of sliding rail assemblies is generally only around 20 kN, which is often insufficient for use in middle or rear row seats.

[0057] To address this, a common solution in existing technologies is to add a clamping structure to improve the strength of the slide rail assembly. However, adding a clamping structure results in a relatively large number of components in the slide rail assembly, a more complex structure, and a relatively higher weight, which is not conducive to the current market requirements for lightweight vehicles.

[0058] Based on the aforementioned technological status, the applicant, through extensive research, has adjusted the structural form of at least the upper rail component 1100 in the slide rail assembly. This adjustment significantly increases the anti-diagonal tensile strength of the slide rail assembly 1000 without adding any additional components, thereby improving its safety performance. Furthermore, it effectively avoids increasing the structural complexity of the slide rail assembly 1000, reducing its weight and facilitating lightweight vehicle design.

[0059] Please refer to Figures 4-6 , Figure 4 This is a structural diagram of the first implementation of the slide rail assembly; Figure 5 for Figure 4 Simplified stress analysis diagram of the middle slide rail assembly when peeling occurs under stress; Figure 6 This is a simplified diagram of the force analysis of a slide rail assembly in the prior art when it peels off under stress.

[0060] like Figure 4 As shown in this embodiment of the invention, the upper rail component 1100 includes an upper rail top plate 1110, two upper rail side plates 1120, and two upper rail outward flanges 1130. The lower rail component 1200 includes a lower rail bottom plate 1210 and two lower rail side portions 1220. Each lower rail side portion 1220 includes a lower rail side plate 1221, a lower rail top plate 1222, and a lower rail inward flange 1223. The lower rail top plate 1222 and the lower rail side plate 1221 are arranged at an angle, meaning there can be a bend between them. The lower rail inward flange 1223 and the lower rail top plate 1222 are also arranged at an angle, meaning there can also be a bend between them.

[0061] The two upper rail flanges 1130 can be inserted into the two lower rail sides 1220 along the first direction X. Furthermore, at least a portion of the ends of the upper rail flanges 1130 extend in the following direction ( Figure 4The direction of the hollow arrowhead can point to the lower rail top plate 1222, or the extension direction of at least a partial end of the upper rail outer flange 1130 can point to the connection between the lower rail top plate 1222 and the lower rail inner flange 1223. It should be understood that at least a partial end of the upper rail outer flange 1130 specifically refers to the end of the upper rail outer flange 1130 away from its connection with the upper rail side plate 1120; this end can be a flat plate structure, in which case the extension direction of the end is also the extension direction of the flat plate structure, or the end can also be a curved panel structure, in which case the extension direction of the end is also the tangential direction of the curved panel structure.

[0062] Combined Figure 5 In the slide rail assembly 1000 of this utility model embodiment, when a vehicle collision causes the upper rail component 1100 and the lower rail component 1200 to separate, at least a partial end of the outer flange 1130 of the upper rail can directly act on the top plate 1222 of the lower rail, or at the connection between the top plate 1222 and the inner flange 1223 of the lower rail. At this time, if the upper rail component 1100 and the lower rail component 1200 are to separate, the upper rail component 1100 needs to drive the top plate 1222 of the lower rail relative to the side plate 1221, and also needs to drive the inner flange 1223 of the lower rail relative to the top plate 1222, that is, it needs to overcome the two bends in the lower rail component 1200. The outer flange 1130 of the upper rail is subjected to a first deformation force F1 downward along the third direction Z of the lower rail component 1200, and the moment of the first deformation force F1 is L1.

[0063] Combined Figure 6 This also includes an analysis of existing slide rail assemblies. For example... Figure 6 As shown, in the prior art slide rail assembly, the extension direction of the end of the upper rail outer flange 1130′ points towards the lower rail inner flange 1223′. When a vehicle collision occurs, causing the upper rail component 1100′ and the lower rail component 1200′ to separate, the end of the upper rail outer flange 1130′ can directly act on the lower rail inner flange 1223′. At this time, if the upper rail component 1100′ and the lower rail component 1200′ are to separate, the upper rail component 1100′ needs to drive the lower rail inner flange 1223′ to flip relative to the lower rail top plate 1222′, that is, it needs to overcome a bend in the lower rail component 1200′. The upper rail outer flange 1130′ is then subjected to a second deformation force F2 along the Y direction of the lower rail component 1200′, and the moment of the second deformation force F2 is L2, which is significantly greater than L1.

[0064] Comparative analysis shows that, by adjusting the structural shape of the upper rail component 1100 in this embodiment of the invention, the separation of the upper rail component 1100 and the lower rail component 1200 during a collision requires overcoming a greater number of bends in the lower rail component 1200, making deformation of the lower rail component 1200 relatively more difficult. Furthermore, the moment L1 of the first deformation force F1 experienced by the outer flange 1130 of the upper rail is relatively small, further increasing the difficulty of deformation of the outer flange 1130. Thus, the overall difficulty of separation between the upper rail component 1100 and the lower rail component 1200 in this embodiment of the invention is higher, thereby improving the anti-diagonal tensile strength of the slide rail assembly 1000.

[0065] In some alternative implementations, such as Figure 4 As shown, both the upper rail outer flange 1130 and the lower rail side plate 1221 can be bent plate structures to further enhance the structural strength of the upper rail component 1100 and the lower rail component 1200.

[0066] The lower rail side plate 1221 may include a first lower rail plate 1221A, a second lower rail plate 1221B, and a third lower rail plate 1221C connected to each other. The first lower rail plate 1221A is connected to the lower rail base plate 1210. The second lower rail plate 1221B and the first lower rail plate 1221A may be arranged at an angle, that is, there may be a bend between the second lower rail plate 1221B and the first lower rail plate 1221A. The third lower rail plate 1221C and the second lower rail plate 1221B may be arranged at an angle, that is, there may be a bend between the third lower rail plate 1221C and the second lower rail plate 1221B. The third lower rail plate 1221C may be connected to the lower rail top plate 1222.

[0067] The first lower rail plate 1221A, the second lower rail plate 1221B, and the third lower rail plate 1221C can all be flat plate structures. Alternatively, at least one of the first lower rail plate 1221A, the second lower rail plate 1221B, and the third lower rail plate 1221C can be a curved panel structure, which is also feasible.

[0068] The upper rail outward flange 1130 may include a first upper rail plate 1131, a second upper rail plate 1132, and a third upper rail plate 1133. The first upper rail plate 1131 is connected to the upper rail side plate 1120, and the second upper rail plate 1132 connects the first upper rail plate 1131 and the third upper rail plate 1133. The first upper rail plate 1131, the second upper rail plate 1132, and the third upper rail plate 1133 may also be arranged at an angle between each other, that is, there may be a bend between each pair.

[0069] The first upper rail plate 1131, the second upper rail plate 1132, and the third upper rail plate 1133 can all be flat plate structures. Alternatively, at least one of the first upper rail plate 1131, the second upper rail plate 1132, and the third upper rail plate 1133 can be a curved plate structure, which is also feasible.

[0070] It should be understood that the above description of the specific structural forms of the upper rail outward flange 1130 and the lower rail side plate 1221 is only a combination of the embodiments of this utility model. Figure 4 This is an exemplary description and should not be construed as limiting the scope of the electric slide rail assembly provided in this embodiment of the present invention. While fulfilling the functional requirements, the upper rail outer flange 1130 and the lower rail side plate 1221 may also adopt other structural forms. For example, at least one of the upper rail outer flange 1130 and the lower rail side plate 1221 may consist of only two plates, or at least one of the upper rail outer flange 1130 and the lower rail side plate 1221 may consist of at least four plates.

[0071] In some alternative implementations, the slide rail assembly 1000 in this embodiment of the present invention may further include a rolling support component 1300.

[0072] The rolling support component 1300 may include a first rolling element 1310 and a second rolling element 1320. Figure 4 In this implementation, both the first rolling element 1310 and the second rolling element 1320 can be ball bearings. The first rolling element 1310 can be located above the second rolling element 1320. Both the first rolling element 1310 and the second rolling element 1320 can be rotatably disposed between the upper rail outer flange 1130 and the lower rail side plate 1221.

[0073] Based on the foregoing detailed description of the upper rail flange 1130 and the lower rail side plate 1221, the first rolling element 1310 can specifically be disposed between the third upper rail plate 1133 and the third lower rail plate 1221C, and the second rolling element 1320 can specifically be disposed between the first upper rail plate 1131 and the first lower rail plate 1221A. The second rolling element 1320 can be used to support the upper rail component 1100 to ensure the posture of the upper rail component 1100 relative to the lower rail component 1200. Furthermore, both the first rolling element 1310 and the second rolling element 1320 can be used to eliminate the gap between the upper rail component 1100 and the lower rail component 1200 in the second direction Y and the third direction Z, thereby reducing the possibility of the upper rail component 1100 wobbling during sliding relative to the lower rail component 1200.

[0074] In this embodiment of the invention, the first rolling element 1310 and the second rolling element 1320 cooperate to improve the smoothness of the upper rail component 1100 sliding in the lower rail assembly 1200.

[0075] The number of the first rolling element 1310 and the second rolling element 1320 is not limited here, and can be adjusted as needed. It should be understood that the first rolling element 1310 and the second rolling element 1320 are all assembled with the upper rail outer flange 1130 and the lower rail side plate 1221 using an interference fit, so that the first rolling element 1310 and the second rolling element 1320 can ensure relatively tight contact with the upper rail outer flange 1130 and the lower rail side plate 1221.

[0076] Please continue to refer to this. Figure 4 In the upper rail outward flange 1130, the first upper rail plate 1131 can be tangent to the outer wall of the second rolling element 1320 through its arc surface, so as to better limit the installation of the second rolling element 1320, thereby improving the installation reliability of the second rolling element 1320 and better utilizing the function of eliminating gaps of the second rolling element 1320. In the lower rail side plate 1221, the first lower rail plate 1221A can be tangent to the outer wall of the second rolling element 1320 through its plane, in order to improve the smoothness of the rolling of the second rolling element 1320.

[0077] Similarly, in the upper rail outer flange 1130, the third upper rail plate 1133 can be tangent to the outer wall surface of the first rolling element 1310 through its arc surface, so as to better limit the installation of the first rolling element 1310, improve the installation reliability of the first rolling element 1310, and better utilize the function of the first rolling element 1310 in eliminating gaps. In the lower rail side plate 1221, the third lower rail plate 1221C can be tangent to the outer wall surface of the first rolling element 1310 through its plane, so as to improve the smoothness of the rolling of the first rolling element 1310.

[0078] In some alternative implementations, the top surface of the upper rail top plate 1110 can be flat. This allows for a simpler structure of the upper rail top plate 1110, simplifying the structure of the upper rail component 1100 and reducing costs. It also makes it easier for the upper rail top plate 1110 to be connected to the seat body through different installation methods.

[0079] For example, as mentioned above Figure 1 As shown, a connecting post 1140 can be provided on the top surface of the upper rail top plate 1110. Specifically, the connecting post 1140 can be a rivet post, etc.

[0080] Please refer to Figures 7-10 , Figure 7 This is a structural diagram of the second implementation of the slide rail assembly; Figure 8 This is a structural diagram of the third implementation method of the slide rail assembly; Figure 9 This is a structural diagram of the fourth implementation method of the slide rail assembly; Figure 10 This is a structural diagram of the fifth implementation method of the slide rail assembly.

[0081] Among the alternative implementations, see [link to relevant documentation]. Figure 7 , and its sum Figure 4 The difference is that in the upper rail outer flange 1130, the first upper rail plate 1131 can be tangent to the outer wall of the second rolling element 1320 through the plane; while in the lower rail side plate 1221, the first lower rail plate 1221A can be tangent to the outer wall of the second rolling element 1320 through the arc surface.

[0082] Among the alternative implementations, see [link to relevant documentation]. Figure 8 , and its sum Figure 4 The difference is that in the lower rail side plate 1221, the third lower rail plate body 1221C can also be tangent to the outer wall surface of the first rolling element 1310 through the arc surface.

[0083] Among the alternative implementations, see [link to relevant documentation]. Figure 9 , and its sum Figure 4 The difference is that in the lower rail side plate 1221, the third lower rail plate 1221C can also be tangent to the outer wall of the first rolling element 1310 through the arc surface, and the first lower rail plate 1221A can also be tangent to the outer wall of the second rolling element 1320 through the arc surface; in the upper rail outer flange 1130, the first upper rail plate 1131 can be tangent to the outer wall of the second rolling element 1320 through the plane.

[0084] Among the alternative implementations, see [link to relevant documentation]. Figure 10 , and its sum Figure 4 The difference is that in the lower rail side plate 1221 and the upper rail outer flange 1130, both the first lower rail plate body 1221A and the first upper rail plate body 1131 can be made tangent to the plane and the second rolling element 1320.

[0085] Furthermore, in Figure 10 In the middle, the rolling support component 1300 may further include a support base 1330, which may be disposed between the lower rail side plate 1221 and the upper rail outer flange 1130. The aforementioned first rolling element 1310 and second rolling element 1320 may be rolled on the support base 1330 so as to integrate and assemble the first rolling element 1310 and the second rolling element 1320.

[0086] It can be seen that both the upper and lower ends of the rolling support component 1300 can be provided with mounting holes. The first rolling element 1310 and the second rolling element 1320 can both be disposed in the mounting holes. The opening of the mounting hole can be appropriately smaller than the first rolling element 1310 and the second rolling element 1320, so that the first rolling element 1310 and the second rolling element 1320 need a certain pressure to be pressed into the mounting hole through the opening, but will be restricted by the opening so that the first rolling element 1310 and the second rolling element 1320 will not fall out of the support base 1330. At the same time, the first rolling element 1310 and the second rolling element 1320 can roll freely relative to the support base 1330 within the mounting hole.

[0087] It should be understood that, in the embodiments of this utility model, Figure 2 , Figures 5-8 The following are merely illustrative examples of several mounting and mating methods for the first rolling element 1310 and the second rolling element 1320. This should not be construed as limiting the scope of the electric slide rail assembly provided in this embodiment. Under functional conditions, the first rolling element 1310 and the second rolling element 1320 can abut against the upper rail outer flange 1130 and the lower rail side plate 1221 in any manner. In a preferred embodiment, when at least one of the first rolling element 1310 and the second rolling element 1320 is a ball bearing, at least one of the upper rail outer flange 1130 and the lower rail side plate 1221 can be tangent to the outer wall surface of the ball bearing through an arc surface. This provides a better limiting effect for the ball bearing and a better effect in eliminating gaps in the second direction Y and the third direction Z.

[0088] Please refer to Figure 11 and Figure 12 , Figure 11 for Figure 4 Simulation experimental diagram of the anti-slant tensile strength of the middle sliding rail assembly; Figure 12 for Figure 11 The curve showing the change in anti-diagonal tensile strength during the simulation experiment.

[0089] Regarding the slide rail assembly 1000 in the electric slide rail assembly provided in this utility model embodiment, the applicant also conducted simulation tests on its anti-diagonal tensile strength. Combined with... Figure 9 and Figure 10 The slide rail assembly 1000 in this embodiment of the present invention has a tensile strength of up to 50KN, which far exceeds the 20KN of the prior art. When used inside a vehicle, it can better protect the occupants and improve safety performance.

[0090] Please refer to Figure 13 and Figure 14 , Figure 13 This is an exploded view of the slide rail assembly; Figure 14 for Figure 13 A schematic diagram of the structure of the rolling support component.

[0091] In some implementations, such as Figure 13 and Figure 14 As shown, the second rolling element 1320 can also be a roller.

[0092] The roller has a cylindrical structure. The lower rail side 1220 and the upper rail outer flange 1130 are both tangent to the outer wall of the roller through a plane, so that the roller and the lower rail side 1220 and the upper rail outer flange 1130 can be supported by line contact. This is beneficial for providing reliable support for the upper rail component 1100, thereby improving the support performance of the slide rail assembly 1000 and ensuring the uniqueness of the relative posture of the upper rail component 1100 and the lower rail component 1200.

[0093] In some alternative implementations, such as Figure 5 and Figure 6 As shown, in the same rolling support component 1300, the ball 1310 and the roller 1320 can be staggered along the first direction X. That is, the cross section perpendicular to the first direction X and passing through the center of the ball 1310 and the cross section perpendicular to the first direction X and passing through the central axis of the roller 1320 are staggered along the first direction X, and these two cross sections have a distance D along the first direction X.

[0094] In this way, without increasing the number of balls 1310 and rollers 1320, the rolling support component 1300 can provide a greater number of support points spaced along the first direction X, thus better fulfilling its supporting role within the slide rail assembly 1000 and improving the support performance of the slide rail assembly 1000. Simultaneously, setting the balls 1310 and rollers 1320 to be staggered along the first direction X can also reduce the interference fit between the rolling support component 1300 and the upper rail component 1100 and the lower rail component 1200 during assembly, making the assembly process relatively easier.

[0095] It should be understood that in some other implementations of this utility model, the ball 1310 and roller 1320 may not be offset along the first direction X, which is also feasible.

[0096] In some alternative implementations, such as Figure 5 and Figure 6As shown, in the same rolling support component 1300, the distance L1 between two adjacent balls 1310 along the first direction X can be smaller than the distance L2 between two adjacent rollers 1320 along the first direction X. In this way, the support length of the rolling support component 1300 can be effectively increased, and the supporting function of the rolling support component 1300 can be better exerted, thereby improving the support performance of the slide rail assembly 1000.

[0097] It should be understood that in some other implementations of this utility model, there may be other relationships between the distance L1 between two adjacent balls 1310 along the first direction X and the distance L2 between two adjacent rollers 1320 along the first direction X, which are not limited here.

[0098] This utility model embodiment also provides a vehicle, including a vehicle body, a seat body, and an electric slide rail assembly. The electric slide rail assembly can be any of the electric slide rail assemblies involved in the foregoing implementations. In the slide rail assembly 1000, the upper rail component 1100 is connected to the seat body, and the lower rail component 1200 is connected to the vehicle body.

[0099] Since the electric slide rail assembly described above already possesses the aforementioned technical effects, vehicles equipped with this electric slide rail assembly should also possess similar technical effects, so further details will not be provided here.

[0100] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An electrically powered slide rail assembly, characterized by, The sliding rail assembly (1000) comprises an upper rail part (1100) and a lower rail part (1200), the lower rail part (1200) is fixedly arranged, the upper rail part (1100) is slidingly arranged in the lower rail part (1200), and the driving assembly (2000) comprises a driving bracket (2100), and the distance between the lower end surface of the driving assembly (2000) and the upper end surface of the lower rail part (1200) is greater than 15 mm.

2. The motorized slide assembly of claim 1, wherein, The driving assembly (2000) further comprises a driving motor (2200) and a gear box (2300), the gear box (2300) is inserted into the upper rail part (1100), and the gear box (2300) comprises at least three transmission wheels arranged in the up-down direction.

3. The motorized slide assembly of claim 2, wherein, The gear box (2300) comprises a box body and a damping piece (2330), and the damping piece (2330) is arranged between the box body and the upper rail part (1100).

4. The motorized slide assembly of any of claims 1-3, wherein, The upper rail part (1100) comprises an upper rail top plate (1110), two upper rail side plates (1120) and two upper rail outer flanges (1130), the lower rail part (1200) comprises a lower rail bottom plate (1210) and two lower rail side parts (1220), the lower rail side part (1220) comprises a lower rail side plate (1221), a lower rail top plate (1222) and a lower rail inner flange (1223), the lower rail top plate (1222) and the lower rail side plate (1221) are arranged at an angle, the lower rail inner flange (1223) and the lower rail top plate (1222) are arranged at an angle, and the two upper rail outer flanges (1130) are respectively inserted into the two lower rail side parts (1220), the extension direction of at least a part of the end of the upper rail outer flange (1130) can point to the lower rail top plate (1222), or the extension direction of at least a part of the end of the upper rail outer flange (1130) can point to the junction of the lower rail top plate (1222) and the lower rail inner flange (1223).

5. The motorized slide assembly of claim 4, wherein, The lower rail side plate (1221) comprises a first lower rail plate body (1221A), a second lower rail plate body (1221B) and a third lower rail plate body (1221C) connected with each other, the first lower rail plate body (1221A) is connected with the lower rail bottom plate (1210), and the third lower rail plate body (1221C) is connected with the lower rail top plate (1222).

6. The motorized slide assembly of claim 4, wherein, The upper rail outer flange (1130) comprises a first upper rail plate body (1131), a second upper rail plate body (1132) and a third upper rail plate body (1133) connected in sequence, and the first upper rail plate body (1131) is connected with the upper rail side plate (1120).

7. The motorized slide assembly of claim 4, wherein, The sliding rail assembly (1000) further comprises a rolling support part (1300), and the rolling support part (1300) is arranged between the upper rail outer flange (1130) and the lower rail side plate (1221). The rolling support component (1300) comprises a first rolling element (1310), a second rolling element (1320) and a support base (1330), the first rolling element (1310) is rolling arranged at the upper end of the support base (1330), and the second rolling element (1320) is rolling arranged at the lower end of the support base (1330).

8. The motorized slide assembly of claim 7, wherein, The extension direction of the slide rail assembly (1000) is a first direction. In the same rolling support component (1300), the first rolling element (1310) and the second rolling element (1320) are arranged in a staggered manner along the first direction; and / or, in the same rolling support component (1300), the interval of two adjacent first rolling elements (1310) along the first direction is smaller than the interval of two adjacent second rolling elements (1320) along the first direction.

9. The motorized slide assembly of claim 4, wherein, The top surface of the upper rail top plate (1110) is a plane.

10. A vehicle characterized by comprising: The vehicle body, the seat body and the electric slide rail assembly of any one of claims 1-9 are connected, the upper rail component (1100) is connected with the seat body, and the lower rail component (1200) is connected with the vehicle body.

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