Sliding door system for vehicle and vehicle

Abstract

A sliding door system for a vehicle and a vehicle, the sliding door system comprising a sliding door body (1), a middle sliding assembly (12), and a lower sliding assembly (13). The sliding door body comprises a first end (A1) for mounting a vehicle window (10) and a second end (A2) away from the first end. The middle sliding assembly is mounted at the first end. The lower sliding assembly is mounted at the second end and comprises a main sliding assembly (131) and an auxiliary sliding assembly (132), the auxiliary sliding assembly being located on the side of the main sliding assembly facing away from the first end. The main sliding assembly comprises a lower main guide rail (1311) and a lower main hinge (1312), the lower main hinge being fixedly connected to the sliding door body, and the lower main guide rail being slidably fitted with the lower main hinge. The auxiliary sliding assembly comprises a lower auxiliary guide rail (1321) and a lower auxiliary hinge (1322), the lower auxiliary hinge being fixedly connected to the sliding door body, and the lower auxiliary guide rail being slidably fitted with the lower auxiliary hinge. According to the described sliding door system for a vehicle, frameless vehicle windows can be attained while stability requirements for the sliding door system for a vehicle are met.

Description

Vehicle sliding door system and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 27, 2023, with application number 202323208067.8 and invention name “Vehicle Sliding Door System and Vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of vehicles, and in particular to a vehicle sliding door system and a vehicle. Background Art

[0003] The current sliding door technology used in traditional mid-to-large-sized vehicles in China mostly utilizes a three-track system. The upper track and upper hinge provide ±Y freedom control (perpendicular to the side door), the middle track provides ±Y freedom control and auxiliary load-bearing, and the lower track provides primary load-bearing (limiting + Z freedom). This vehicle sliding door system cannot achieve frameless windows.

[0004] Summary of the Invention

[0005] An embodiment of the present application provides a vehicle sliding door system and a vehicle. The vehicle sliding door system provided by the present application can achieve frameless vehicle windows while meeting the stability requirements of the vehicle sliding door system.

[0006] An embodiment of a first aspect of the present application provides a vehicle sliding door system, comprising:

[0007] A sliding door body comprising a first end for mounting a vehicle window and a second end remote from the first end;

[0008] a middle sliding assembly, mounted on the first end;

[0009] The lower sliding assembly is installed at the second end, and includes a main sliding assembly and a secondary sliding assembly. The secondary sliding assembly is located on the side of the main sliding assembly away from the first end. The main sliding assembly includes a lower main rail and a lower main hinge. The lower main hinge is fixedly connected to the sliding door body, and the lower main rail slides in conjunction with the lower main hinge; the secondary sliding assembly includes a lower secondary guide rail and a lower secondary hinge. The lower secondary hinge is fixedly connected to the sliding door body, and the lower secondary guide rail slides in conjunction with the lower secondary hinge.

[0010] According to an embodiment of the first aspect of the present application, the lower secondary hinge includes at least one secondary guide wheel, the lower secondary guide rail includes a second guide groove, the second guide groove includes a second opening toward the second end, a third wall located on the side of the second opening away from the second end, and a fourth wall arranged on both sides of the third wall along the extension direction of the second guide groove, and the secondary guide wheel is in contact with the fourth wall.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the lower secondary hinge includes two secondary guide wheels, the axes of the two secondary guide wheels coincide, the lower secondary hinge includes a fixing portion, one end of the fixing portion is fixed to the sliding door body, and the other end is fixed to the secondary guide wheel, and the two secondary guide wheels are fixed to the side of the fixing portion facing the first end.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, it further includes a door opening sealing strip, which is arranged between the main sliding assembly and the auxiliary sliding assembly.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the middle sliding assembly includes a middle guide rail and a middle hinge, the middle hinge is fixedly connected to the sliding door body, the middle guide rail and the middle hinge are slidably matched, the middle hinge includes a middle guide wheel and a middle load-bearing wheel, the middle guide wheel intersects with the axial direction of the middle load-bearing wheel, the middle guide wheel is located on the side of the middle load-bearing wheel facing the first end and / or the second end, the middle guide rail includes a second load-bearing groove and at least one third guide groove, the third guide groove includes a third opening facing the second end or the first end, a fifth wall arranged opposite to the third opening, and a sixth wall arranged on both sides of the fifth wall along the extension direction of the third guide groove, the middle guide wheel contacts the sixth wall, and the axial direction of the middle guide wheel is perpendicular to the plane where the fifth wall is located; the first load-bearing groove includes a third bottom wall located on the side of the middle load-bearing wheel close to the second end, the third bottom wall is connected to the sixth wall, the middle load-bearing shaft contacts the third bottom wall, and the axial direction of the middle load-bearing shaft is parallel to the plane where the third bottom wall is located.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, when the third guide groove is located on the side of the second load-bearing groove close to the first end, the third bottom wall is connected to the sixth wall via a first connecting wall and a second connecting wall, the first connecting wall is directly connected to the sixth wall and is parallel to the third bottom wall, and the second connecting wall is connected between the first connecting wall and the third bottom wall;

[0015] When the third guide groove is located on the side of the second load-bearing groove close to the second end, the third bottom wall is directly connected to the sixth wall.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the number of the third guide grooves is two, one of the third guide grooves is located on a side of the second load-bearing groove close to the first end, and the other of the third guide grooves is located on a side of the second load-bearing groove close to the second end;

[0017] There are four middle guide wheels and they are located at the four end points of a virtual rectangle, wherein two of the middle guide wheels are arranged along the extension direction of the third guide groove and are slidably engaged with one of the third guide grooves, and the other two middle guide wheels are arranged along the extension direction of the third guide groove and are slidably engaged with the other of the third guide grooves;

[0018] There is one middle load-bearing wheel and it is located at the center of the virtual rectangle, or there are two middle load-bearing wheels and they are located in the middle of the side of the virtual quadrilateral parallel to the axis direction of the middle guide wheel.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the lower main hinge includes a main guide wheel and a main load-bearing wheel, the main guide wheel and the main load-bearing wheel have axial directions perpendicular to each other, the lower main rail includes a first guide groove and a first load-bearing groove, the first guide groove includes a first opening facing the second end, a first wall located on a side of the first opening away from the second end, and second walls provided on both sides of the first wall along an extension direction of the first guide groove, and the main guide wheel is in contact with the second wall;

[0020] The first load-bearing groove includes a first bottom wall, which is located on the side of the main guide wheel away from the first end and contacts the main guide wheel; there are two main guide wheels, and there is one first guide groove. The two main guide wheels are arranged along the extension direction of the first guide groove. There is one main load-bearing wheel, and the main load-bearing wheel is located between the two main guide wheels along the extension direction of the first guide groove.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, it also includes an upper limit block, a lower limit block, an upper buffer block, and a lower buffer block, the upper limit block and the upper buffer block are fixedly arranged at the first end, the lower limit block and the lower buffer block are fixedly arranged at the second end, the upper limit block and the lower limit block include grooves, the upper buffer block and the lower buffer block include protrusions, and the material of the upper buffer block and the lower buffer block includes flexible material.

[0022] An embodiment of the second aspect of the present application further provides a vehicle, comprising any one of the vehicle sliding door systems provided in the first aspect of the present application.

[0023] The vehicle sliding door system provided in the present application can be used to install frameless windows, thereby realizing a frameless sliding door. Specifically, the vehicle sliding door system includes a first end and a second end, the first end is used to install the window, and the vehicle sliding door system includes a middle sliding assembly and a lower sliding assembly. The middle sliding assembly is installed at the first end, and the lower sliding assembly is installed at the second end. The upper sliding assembly is eliminated, thereby being used to realize a frameless window. At the same time, the lower sliding assembly includes a main sliding assembly and a sub-sliding assembly, the sub-sliding assembly is located on the side of the main sliding assembly away from the first end, the main sliding assembly includes a lower main rail and a lower main hinge, the lower main hinge is fixedly connected to the sliding door body, and the lower main rail and the lower main hinge slide together; the sub-sliding assembly includes a lower sub-guide rail and a lower sub-hinge, the lower sub-hinge is fixedly connected to the sliding door body, and the lower sub-guide rail and the lower sub-hinge slide together. In the vehicle sliding door system, the lower sliding assembly adopts a double-line parallel design, which includes a main sliding assembly and a sub-sliding assembly, and the sub-sliding assembly is located on the side of the main sliding assembly close to the second end, so that the stability requirements of the vehicle sliding door system can be achieved while eliminating the upper sliding assembly to achieve a frameless window, and the vehicle sliding door system can achieve weight reduction. While reducing weight, the center of gravity of the vehicle sliding door system is lowered, further enhancing the opening and closing stability of the vehicle sliding door system.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] FIG1 is a schematic structural diagram of a vehicle sliding door system provided in an embodiment of the present application;

[0027] FIG2 is a partial cross-sectional view of a main sliding assembly in a vehicle sliding door system provided by an embodiment of the present application;

[0028] FIG3 is a partial cross-sectional view of a main sliding assembly in a vehicle sliding door system provided by an embodiment of the present application;

[0029] FIG4 is a partial structural diagram of a secondary sliding assembly in a vehicle sliding door system provided by an embodiment of the present application;

[0030] FIG5 is a schematic structural diagram of a lower sliding assembly in a vehicle sliding door system provided by an embodiment of the present application;

[0031] FIG6 is a schematic structural diagram of a middle sliding assembly in a vehicle sliding door system provided by an embodiment of the present application;

[0032] FIG7 is a schematic structural diagram of a vehicle provided in an embodiment of the present application.

[0033] In the attached figure:

[0034] 1-Vehicle sliding door system; 10-Vehicle window; 11-Sliding door body; A1-First end; A2-Second end; 12-Middle sliding assembly; 121-Middle guide rail; 1211-Second load-bearing groove; 1212-Third guide groove; 1213-Third opening; 1214-Fifth wall; 1215-Sixth wall; 1216-Third bottom wall; 122-Middle hinge; 1221-Middle guide wheel; 1222-Middle load-bearing wheel; 13-Lower sliding assembly; 131-Main sliding assembly; 1311-Lower main rail; 1312-Lower main hinge; 1313-Main guide wheel; 1314-Main Load-bearing wheel; 1315-first guide groove; 1316-first load-bearing groove; 1317-first opening; 1318-first wall; 1319-second wall; 1320-first bottom wall; 132-secondary sliding assembly; 1321-lower secondary guide rail; 1322-lower secondary hinge; 1323-secondary guide wheel; 1324-second guide groove; 1325-second opening; 1326-third wall; 1327-fourth wall; 133-door opening sealing strip; 14-upper limit block; 15-lower limit block; 16-upper buffer block; 17-lower buffer block; 18-front lock; 19-rear lock; 2-vehicle. Specific embodiments

[0035] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0037] Research has revealed that vehicles with sliding doors typically utilize three hinges—upper, middle, and lower—that are slidably connected to three guide rails on the vehicle body. The upper hinge, mounted on the upper portion of the sliding door, must be connected to the sliding door window frame, making it difficult to create a frameless sliding door. Based on this research, the present application provides a vehicle sliding door system and vehicle to achieve a frameless window design.

[0038] In order to better understand the present application, the vehicle sliding door system and the vehicle according to the embodiment of the present application are described in detail below with reference to Figures 1 to 7.

[0039] Referring to Figures 1 to 4 , an embodiment of the present application provides a vehicle sliding door system 1, comprising a sliding door body 11, a middle sliding assembly 12, and a lower sliding assembly 13. The sliding door body 11 includes a first end A1 for mounting a vehicle window 10 and a second end A2 distal from the first end A1. The middle sliding assembly 12 is mounted to the first end A1. The lower sliding assembly 13 is installed at the second end A2, and includes a main sliding assembly 131 and a sub-sliding assembly 132. The sub-sliding assembly 132 is located on the side of the main sliding assembly 131 away from the first end A1. The main sliding assembly 131 includes a lower main rail 1311 and a lower main hinge 1312. The lower main hinge 1312 is fixedly connected to the sliding door body 11, and the lower main rail 1311 slides with the lower main hinge 1312; the sub-sliding assembly 132 includes a lower sub-guide rail 1321 and a lower sub-hinge 1322. The lower sub-hinge 1322 is fixedly connected to the sliding door body 11, and the lower sub-guide rail 1321 slides with the lower sub-hinge 1322.

[0040] The vehicle sliding door system 1 provided herein can be used to install a frameless vehicle window 10, thereby realizing a frameless sliding door. Specifically, the vehicle sliding door system 1 includes a first end A1 and a second end A2. The first end A1 is used to install the vehicle window 10. The vehicle sliding door system 1 includes a middle sliding assembly 12 and a lower sliding assembly 13. The middle sliding assembly 12 is installed at the first end A1, and the lower sliding assembly 13 is installed at the second end A2. The upper sliding assembly is eliminated, thereby realizing a frameless vehicle window 10. The lower sliding assembly 13 also includes a main sliding assembly 131 and a secondary sliding assembly 132. The secondary sliding assembly 132 is located on the side of the main sliding assembly 131 facing away from the first end A1. The main sliding assembly 131 includes a lower main rail 1311 and a lower main hinge 1312, the lower main hinge 1312 is fixedly connected to the sliding door body 11, and the lower main rail 1311 and the lower main hinge 1312 are slidably matched; the auxiliary sliding assembly 132 includes a lower auxiliary rail 1321 and a lower auxiliary hinge 1322, the lower auxiliary hinge 1322 is fixedly connected to the sliding door body 11, and the lower auxiliary rail 1321 and the lower auxiliary hinge 1322 are slidably matched. In the vehicle sliding door system 1, the lower sliding assembly 1 The dual-line system includes a main sliding assembly 131 and a secondary sliding assembly 132, and the secondary sliding assembly 132 is located on the side of the main sliding assembly 131 close to the second end A2. This eliminates the need for an upper sliding assembly to achieve a frameless vehicle window 10 while meeting the stability requirements of the vehicle sliding door system 1. The vehicle sliding door system 1 can also be reduced in weight, and the center of gravity of the vehicle sliding door system 1 is lowered while reducing the weight, further enhancing the opening and closing stability of the vehicle sliding door system 1.

[0041] Specifically, since the upper sliding assembly is eliminated to achieve a frameless vehicle window 10 , the vehicle sliding door system 1 can reduce weight by 15%.

[0042] In one feasible embodiment, as shown in Figures 2 and 3, the lower main hinge 1312 includes a main guide wheel 1313 and a main load-bearing wheel 1314. The axes of the main guide wheel 1313 and the main load-bearing wheel 1314 are perpendicular to each other. The lower main rail 1311 includes a first guide groove 1315 and a first load-bearing groove 1316. The first guide groove 1315 includes a first opening 1317 facing the second end A2, a first wall 1318 located on the side of the first opening 1317 facing away from the second end A2, and second walls 1319 arranged on both sides of the first wall 1318 along the extension direction of the first guide groove 1315. The main guide wheel 1313 contacts the second walls 1319. The first load-bearing groove 1316 includes a first bottom wall 1320 located on the side of the main guide wheel 1313 facing away from the first end A1 and contacting the main guide wheel 1313.

[0043] In the above embodiment, by configuring the lower main rail 1311 to include a first guide groove 1315 and a first load-bearing groove 1316, configuring the lower main hinge 1312 to include a main guide wheel 1313 and a main load-bearing wheel 1314, and slidably engaging the main guide wheel 1313 with the first guide groove 1315 to guide the main sliding assembly 131 during sliding, the sliding door body 11 is provided with position limiting along its thickness direction (i.e., the direction of arrangement between the interior and exterior of the vehicle when the door is closed), thereby improving the stability of the sliding door body 11 during sliding. The main load-bearing wheel 1314 cooperates with the first load-bearing groove 1316 to provide support for the sliding door body 11 in a direction perpendicular to the vehicle's placement plane, further improving the stability of the sliding door body 11 during sliding and when stationary.

[0044] In a feasible embodiment, as shown in Figures 2 and 3, there are two main guide wheels 1313, and there is one first guide groove 1315. The two main guide wheels 1313 are arranged along the extension direction of the first guide groove 1315. There is one main load-bearing wheel 1314, and the main load-bearing wheel 1314 is located between the two main guide wheels 1313 along the extension direction of the first guide groove 1315.

[0045] In the above embodiment, the main load-bearing wheel 1314 rolls or slides along the extension direction of the first load-bearing groove 1316 to realize the sliding of the sliding door body 11. The main load-bearing wheel 1314 is located between the two main guide wheels 1313 along the extension direction of the first guide groove 1315. The main load-bearing wheel 1314 can be limited on both sides along the extension direction of the first guide groove 1315 to prevent the main load-bearing wheel 1314 from being separated from the first load-bearing groove 1316, so as to improve the stability and reliability of the vehicle sliding door system 1.

[0046] In a feasible embodiment, as shown in Figure 4, the lower secondary hinge 1322 includes at least one secondary guide wheel 1323, the lower secondary guide rail 1321 includes a second guide groove 1324, the second guide groove 1324 includes a second opening 1325 toward the second end A2, a third wall 1326 located on the side of the second opening 1325 away from the second end A2, and a fourth wall 1327 arranged on both sides of the third wall 1326 along the extension direction of the second guide groove 1324, and the secondary guide wheel 1323 is in contact with the fourth wall 1327.

[0047] In the above embodiment, by setting up the auxiliary sliding component 132, it can play an auxiliary limiting role during the sliding process of the sliding door body 11. Specifically, during the sliding process and static state of the sliding door body 11, the second guide groove 1324 in the auxiliary sliding component 132 slides with the auxiliary guide wheel 1323, thereby providing limitation along the thickness direction of the sliding door body 11 (that is, the arrangement direction inside and outside the vehicle when the vehicle is in the closed state), so as to further improve the stability and reliability of the sliding door body 11.

[0048] When one auxiliary guide wheel 1323 is used, the space occupancy rate can be reduced while limiting the position.

[0049] In another feasible embodiment, the lower secondary hinge 1322 includes two secondary guide wheels 1323, the axes of the two secondary guide wheels 1323 coincide, the lower secondary hinge 1323 includes a fixing portion 1320, one end of the fixing portion 1320 is fixed to the sliding door body, and the other end is fixed to the secondary guide wheel 1323, and the two secondary guide wheels 1323 are fixed to the side of the fixing portion 1320 facing the first end.

[0050] In the above embodiment, the axes of the two auxiliary guide wheels 1323 coincide, thereby ensuring that the two auxiliary guide wheels 1323 can cooperate effectively with the second guide groove 1324 during sliding, thereby improving stability during sliding. The two auxiliary guide wheels 1323 are fixed to the side of the fixing portion 1320 facing the first end, thereby being suitable for the second guide groove 1324 having the second opening 1325 facing the second end A2. The two fourth walls 1327 of the second guide groove 1324 are relatively large and do not have openings, thereby further improving the stability of the cooperation with the auxiliary guide wheels 1323.

[0051] In a feasible embodiment, as shown in FIG. 5 , a door opening sealing strip 133 is further included. The door opening sealing strip 133 is disposed between the main sliding assembly 131 and the auxiliary sliding assembly 132 .

[0052] In the above embodiment, by setting the auxiliary sliding component 132 on the side of the door opening sealing strip 133 close to the second end A2, the setting of the auxiliary sliding component 132 can be prevented from occupying the interior space of the vehicle, thereby achieving a balance between the stability of the vehicle sliding door system 1 and the range of the interior space of the vehicle.

[0053] In a feasible embodiment, as shown in FIG6 , the middle sliding assembly 12 includes a middle guide rail 121 and a middle hinge 122 . The middle hinge 122 is fixedly connected to the sliding door body 11 , and the middle guide rail 121 and the middle hinge 122 are slidably matched.

[0054] In the above embodiment, the middle sliding assembly 12 includes a slidingly matched middle guide rail 121 and a middle hinge 122, so that the sliding door body 11 can be limited at the first end A1 of the sliding door body 11, and cooperate with the lower sliding assembly 13 at two points to improve the stability of the sliding door body 11.

[0055] In a feasible embodiment, as shown in FIG6 , the middle hinge 122 includes a middle guide wheel 1221 and a middle load-bearing wheel 1222. The middle guide wheel 1221 intersects with the axis direction of the middle load-bearing wheel 1222. The middle guide wheel 1221 is located on the side of the middle load-bearing wheel 1222 facing the first end A1 and / or the second end A2. The middle guide rail 121 includes a second load-bearing groove 1211 and at least a third guide groove 1212. The third guide groove 1212 includes a third opening 1213 facing the second end A2 and / or the first end A1, and a fifth wall 1213 disposed opposite to the third opening 1213. 14 and sixth walls 1215 provided on both sides of the fifth wall 1214 along the extension direction of the third guide groove 1212, the middle guide wheel 1221 contacts the sixth wall 1215, and the axial direction of the middle guide wheel 1221 is perpendicular to the plane where the fifth wall 1214 is located; the second load-bearing groove 1211 includes a third bottom wall 1216 located on the side of the middle load-bearing wheel 1222 close to the second end A2, the third bottom wall 1216 is connected to the sixth wall 1215, the middle load-bearing wheel 1222 contacts the third bottom wall 1216, and the axial direction of the middle load-bearing wheel 1222 is parallel to the plane where the third bottom wall 1216 is located.

[0056] In the above embodiment, the middle sliding assembly 12 connects the second load-bearing groove 1211 and the third guide groove 1212 by connecting the third bottom wall 1216 to the sixth wall 1215. This improves the integration of the middle sliding assembly 12, reduces the space occupied by the sliding door body 11, and reduces the space occupied by the vehicle interior. The load-bearing wheels in the middle sliding assembly 12 and the corresponding second weighing groove provide support for the sliding door body 11 in a direction perpendicular to the vehicle's placement plane, further improving the stability of the sliding door body 11 during sliding and when stationary. The interoperable middle guide wheels 1221 and the third guide groove 1212 provide guidance during sliding and provide position limiting for the sliding door body 11 along its thickness direction (i.e., the alignment direction between the inside and outside of the vehicle when the door is closed), thereby improving the stability of the sliding door body 11 during sliding.

[0057] In a feasible embodiment, as shown in Figure 6, when the third guide groove 1212 is located on the side of the second load-bearing groove 1211 close to the first end A1, the third bottom wall 1216 is connected to the sixth wall 1215 through the first connecting wall and the second connecting wall. The first connecting wall is directly connected to the sixth wall 1215 and is parallel to the third bottom wall 1216, and the second connecting wall is connected between the first connecting wall and the third bottom wall 1216, thereby realizing an indirect connection between the third bottom wall 1216 and the sixth wall 1215.

[0058] When the third guide groove 1212 is located on the side of the second bearing groove 1211 close to the second end A2 , the third bottom wall 1216 is directly connected to the sixth wall 1215 .

[0059] In the above embodiment, the third bottom wall 1216 and the sixth wall 1215 may be directly or indirectly connected, and this application does not specifically limit this. In one feasible embodiment, there are two third guide grooves 1212, one of which is located on the side of the second bearing groove 1211 close to the first end A1, and the other is located on the side of the second bearing groove 1211 close to the second end A2.

[0060] In the above embodiment, the number of third guide grooves 1212 can be one or two, and this application does not specifically limit this. When there are two third guide grooves 1212, one third guide groove 1212 can be located on the side of the second load-bearing groove 1211 closer to the first end A1, and the other third guide groove 1212 can be located on the side of the second load-bearing groove 1211 closer to the second end A2. This provides a position limit for the middle load wheel 1222 on the side closer to and farther from the second end A2, thereby improving the position limit effect and thus enhancing the stability of the sliding door body 11. At the same time, the middle load wheel 1222 can be confined between the two third guide grooves 1212 to prevent the middle load wheel 1222 from derailing.

[0061] In a feasible embodiment, as shown in Figure 6, the number of middle guide wheels 1221 is four and they are located at the four end points of a virtual rectangle, wherein two middle guide wheels 1221 are arranged along the extension direction of the third guide groove 1212 and slide with one third guide groove 1212, and the other two middle guide wheels 1221 are arranged along the extension direction of the third guide groove 1212 and slide with another third guide groove 1212.

[0062] In the above embodiment, two middle guide wheels 1221 can be set in each third guide groove 1212, so that two contact points can be provided for the middle hinge 122 in each third guide groove 1212 to improve the stability of each third guide groove 1212 and the two middle guide wheels 1221 therein.

[0063] In a feasible embodiment, as shown in Figure 6, the number of the middle load-bearing wheel 1222 is one and is located at the center of the virtual rectangle. At this time, the four middle guide wheels 1221 can surround the middle load-bearing wheel 1222, and provide limits on both sides of the middle load-bearing wheel 1222 along the extension direction of the second load-bearing groove 1211, and provide limits on the middle load-bearing wheel 1222 close to the second end A2 and away from the second end A2, so as to further improve the stability of the sliding door body 11.

[0064] In another feasible embodiment, there are two middle load-bearing wheels 1222 and they are located in the middle of the side of the virtual quadrilateral parallel to the axis direction of the middle guide wheel 1221.

[0065] In the above embodiment, by providing two middle load-bearing wheels 1222 , two-point contact between the middle hinge 122 and the second load-bearing groove 1211 can be achieved, thereby further improving the stability of the sliding door body 11 .

[0066] In a feasible embodiment, as shown in Figure 1, it also includes an upper limit block 14, a lower limit block 15, an upper buffer block 16, and a lower buffer block 17. The upper limit block 14 and the upper buffer block 16 are fixedly arranged at the first end A1, and the lower limit block 15 and the lower buffer block 17 are fixedly arranged at the second end A2. The upper limit block 14 and the lower limit block 15 include grooves, the upper buffer block 16 and the lower buffer block 17 include protrusions, and the material of the upper buffer block 16 and the lower buffer block 17 includes flexible material.

[0067] In the above-described embodiment, the upper limit block 14 can provide a position limit for the sliding door body 11 at the waist portion, i.e., the first end A1, along the thickness direction (i.e., the alignment direction between the inside and outside of the vehicle when the door is closed) and / or along the sliding direction of the sliding door assembly, thereby improving the stability of the sliding door assembly. The lower limit portion can provide a position limit for the sliding door body 11 at the lower portion, i.e., the second end A2, along the thickness direction (i.e., the alignment direction between the inside and outside of the vehicle when the door is closed) and / or along the sliding direction of the sliding door assembly, thereby improving the stability of the sliding door assembly. Specifically, the upper limit block 14 and the lower limit block 15 include grooves that can respectively cooperate with the upper limit protrusion and the lower limit protrusion on the vehicle body to achieve the position limiting function.

[0068] In the above embodiment, the upper buffer block 16 can provide support and cushioning for the sliding door body 11 at the waist of the sliding door body 11, i.e., at the first end A1, along its thickness (i.e., the direction of arrangement between the inside and outside of the vehicle when the door is closed), and / or along the sliding direction of the sliding door assembly, thereby improving the stability of the sliding door assembly. The lower buffer block 17 can provide support and cushioning for the sliding door body 11 at the lower portion of the sliding door body 11, i.e., at the second end A2, along its thickness (i.e., the direction of arrangement between the inside and outside of the vehicle when the door is closed), and / or along the sliding direction of the sliding door assembly, thereby improving the stability of the sliding door assembly. Specifically, the upper buffer block 16 and the lower buffer block 17 include protrusions that can directly contact the vehicle body to achieve a cushioning function.

[0069] In the above embodiment, the material of the upper buffer block 16 and the lower buffer block 17 can be rubber, which has both support and flexibility and low cost. This application does not specifically limit the material of the upper buffer block 16 and the lower buffer block 17.

[0070] In a feasible embodiment, it also includes a front lock 18 and a rear lock 19 fixed to the sliding door body 11. The front lock 18 and the rear lock 19 are arranged on both sides of the sliding door body 11 along the front and rear directions of the vehicle to achieve locking of the sliding door body 11.

[0071] The present application also provides a vehicle, as shown in FIG7 , which includes any one of the vehicle sliding door systems 1 provided in the above embodiments of the present application.

[0072] In the vehicle sliding door system 1 , the middle guide rail 121 , the lower auxiliary guide rail 1321 and the lower main guide rail 1311 are respectively fixedly mounted on the vehicle body, so that the sliding door body 11 is slidably fixed to the vehicle body.

[0073] The vehicle provided in this application may be a pure electric vehicle, a hybrid electric vehicle, or an extended-range vehicle, etc., and this application does not make any special limitations.

[0074] While the embodiments described above are not exhaustive, they do not limit the present application to specific embodiments. Clearly, numerous modifications and variations are possible based on the above description. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present application, thereby enabling those skilled in the art to better utilize the present application and its modifications. The present application is limited only by the claims and their full scope and equivalents.

[0075] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle sliding door system, characterized in that: include: A sliding door body, comprising a first end for mounting a vehicle window and a second end away from the first end; a middle sliding assembly, mounted on the first end; The lower sliding assembly is installed at the second end, and includes a main sliding assembly and a sub-sliding assembly. The sub-sliding assembly is located on the side of the main sliding assembly away from the first end. The main sliding assembly includes a lower main guide rail and a lower main hinge. The lower main hinge is fixedly connected to the sliding door body, and the lower main guide rail and the lower main hinge are slidably matched. The sub-sliding assembly includes a lower sub-guide rail and a lower sub-hinge. The lower sub-hinge is fixedly connected to the sliding door body, and the lower sub-guide rail and the lower sub-hinge are slidably matched.

2. The vehicle sliding door system according to claim 1, characterized in that: The lower secondary hinge includes at least one secondary guide wheel, the lower secondary guide rail includes a second guide groove, the second guide groove includes a second opening toward the second end, a third wall located on the side of the second opening away from the second end, and a fourth wall arranged on both sides of the third wall along the extension direction of the second guide groove, and the secondary guide wheel is in contact with the fourth wall.

3. The vehicle sliding door system according to claim 2, characterized in that: The lower secondary hinge includes two secondary guide wheels, the axes of the two secondary guide wheels coincide, the lower secondary hinge includes a fixing part, one end of the fixing part is fixed to the sliding door body, and the other end is fixed to the secondary guide wheel, and the two secondary guide wheels are fixed to the side of the fixing part facing the first end.

4. The vehicle sliding door system according to claim 1, characterized in that: It also includes a door opening sealing strip, which is arranged between the main sliding component and the auxiliary sliding component.

5. The vehicle sliding door system according to claim 1, characterized in that: The middle sliding assembly includes a middle guide rail and a middle hinge, the middle hinge is fixedly connected to the sliding door body, the middle guide rail and the middle hinge are slidably matched, the middle hinge includes a middle guide wheel and a middle load-bearing wheel, the middle guide wheel intersects with the axial direction of the middle load-bearing wheel, the middle guide wheel is located on the side of the middle load-bearing wheel facing the first end and / or the second end, the middle guide rail includes a second load-bearing groove and at least one third guide groove, the third guide groove includes a third opening facing the second end or the first end, a fifth wall arranged opposite to the third opening, and a sixth wall arranged on both sides of the fifth wall along the extension direction of the third guide groove, the middle guide wheel contacts the sixth wall, and the axial direction of the middle guide wheel is perpendicular to the plane where the fifth wall is located; the second load-bearing groove includes a third bottom wall located on the side of the middle load-bearing wheel close to the second end, the third bottom wall is connected to the sixth wall, the middle load-bearing shaft contacts the third bottom wall, and the axial direction of the middle load-bearing shaft is parallel to the plane where the third bottom wall is located.

6. The vehicle sliding door system according to claim 5, characterized in that: When the third guide groove is located on the side of the second load-bearing groove close to the first end, the third bottom wall is connected to the sixth wall through a first connecting wall and a second connecting wall, the first connecting wall is directly connected to the sixth wall and is parallel to the third bottom wall, and the second connecting wall is connected between the first connecting wall and the third bottom wall; When the third guide groove is located on the side of the second load-bearing groove close to the second end, the third bottom wall is directly connected to the sixth wall.

7. The vehicle sliding door system according to claim 5, characterized in that: The number of the third guide grooves is two, and one of the third guide grooves is located on a side of the second load-bearing groove close to the first end, and the other third guide groove is located on a side of the second load-bearing groove close to the second end; There are four middle guide wheels located at four end points of a virtual rectangle, wherein two of the middle guide wheels are arranged along the extension direction of the third guide groove and are slidably matched with one of the third guide grooves, and the other two of the middle guide wheels are arranged along the extension direction of the third guide groove and are slidably matched with another of the third guide grooves; The number of the middle load-bearing wheels is one and is located at the center of the virtual rectangle, or the number of the middle load-bearing wheels is two and is located in the middle of the side parallel to the axis direction of the middle guide wheel in the virtual quadrilateral.

8. The vehicle sliding door system according to claim 1, characterized in that: The lower main hinge comprises a main guide wheel and a main load-bearing wheel, the main guide wheel and the main load-bearing wheel have axial directions perpendicular to each other, the lower main guide comprises a first guide groove and a first load-bearing groove, the first guide groove comprises a first opening toward the second end, a first wall located at the first opening away from the second end, and second walls arranged at both sides of the first wall along the extension direction of the first guide groove, the main guide wheel contacts the second wall; The first load-bearing groove includes a first bottom wall, the first bottom wall is located on a side of the main guide wheel away from the first end and in contact with the main guide wheel; the number of the main guide wheels is two, the number of the first guide groove is one, the two main guide wheels are arranged along the extension direction of the first guide groove, the number of the main load-bearing wheel is one, and the main load-bearing wheel is arranged along the extension direction of the first guide groove. The extension direction of the first guide groove is located between the two main guide wheels.

9. The vehicle sliding door system according to claim 1, characterized in that: It also includes an upper limit block, a lower limit block, an upper buffer block, and a lower buffer block. The upper limit block and the upper buffer block are fixedly arranged at the first end, and the lower limit block and the lower buffer block are fixedly arranged at the second end. The upper limit block and the lower limit block include grooves, and the upper buffer block and the lower buffer block include protrusions. The material of the upper buffer block and the lower buffer block includes flexible material.

10. A vehicle, characterized in that: The invention comprises a vehicle sliding door system as described in any one of claims 1 to 9.

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