Threshold assembly and vehicle

Abstract

The utility model relates to a doorsill assembly and vehicle, including doorsill inner plate assembly, doorsill outer plate assembly and side wall outer plate, said doorsill inner plate assembly, doorsill outer plate assembly and side wall outer plate are fixedly connected to form closed cavity structure, and the inside of cavity structure is provided with support reinforcing structure. Rigid strength performance, side collision performance and small offset collision performance of the side face of the automobile body can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of a front engine room of a vehicle, and in particular to a door sill assembly and a vehicle. Background Art

[0002] In the design of automobile structure, the threshold assembly structure is the most important structure to ensure the side rigidity of the whole vehicle, and is an important part to ensure side collision. In conventional automobile structure design, the threshold assembly often adopts a splicing structure of scattered parts, and the structural design of the parts does not take performance into consideration enough, and cannot meet the development requirements of high performance of new models. For example, the automobile threshold assembly and automobile disclosed in patent document CN217294695U, the automobile threshold assembly includes a threshold inner plate and a threshold outer plate relatively arranged in the thickness direction of the automobile threshold assembly, and a reinforcement component arranged between the threshold inner plate and the threshold outer plate, the threshold inner plate and the threshold outer plate are surrounded to form a cavity, and the reinforcement component includes a threshold beam reinforcement plate, a threshold inner plate support plate and a threshold reinforcement bracket. The edge position of the threshold beam reinforcement plate is fixedly connected to the threshold inner plate and the threshold outer plate, and there is a storage space between the threshold beam reinforcement plate and the threshold inner plate, and the threshold inner plate support plate and the threshold reinforcement bracket are both arranged in the storage space, and are relatively fixed to the threshold beam reinforcement plate and the threshold inner plate respectively. The door sill assembly structure adopts a scattered parts splicing structure, without an effective supporting force transmission structure, resulting in poor performance and unable to meet the high-performance development requirements of new models.

[0003] Therefore, it is necessary to develop a new door sill assembly and vehicle. Utility Model Content

[0004] The utility model aims to provide a door sill assembly and a vehicle, which can effectively ensure the rigidity performance of the side of the vehicle body and the side collision and small offset collision performance.

[0005] In a first aspect, a threshold assembly described in the utility model includes a threshold inner panel assembly, a threshold outer panel assembly and a side panel outer panel, wherein the threshold inner panel assembly, the threshold outer panel assembly and the side panel outer panel are fixedly connected to form a closed cavity structure, and a supporting reinforcement structure is provided in the cavity structure.

[0006] Optionally, the rocker inner panel assembly includes a rocker inner panel front section assembly, a rocker inner panel middle section assembly and a rocker inner panel rear section assembly which are fixedly connected together in sequence from front to rear. When used on a vehicle, the rocker inner panel front section assembly is located in the engine compartment assembly, the rocker inner panel middle section assembly is located in the front floor assembly, and the rocker inner panel rear section assembly is located in the rear floor assembly. The rocker inner panel assembly is also an important structure constituting the lower body assembly and an important component to ensure the integrity of the side structure of the lower body assembly.

[0007] Optionally, the rocker inner panel front section assembly includes an A-pillar lower inner panel, a rocker inner panel front section reinforcement and a rocker inner panel front section which are welded together in sequence from outside to inside. The three-layer welding is adopted to ensure the overall strength of the rocker inner panel front section assembly.

[0008] Optionally, the rocker inner panel middle section assembly includes a rocker inner panel middle section and a rocker inner panel middle section reinforcement, the cross-sections of the rocker inner panel middle section and the rocker inner panel middle section reinforcement are U-shaped, and the rocker inner panel middle section reinforcement is welded inside the rocker inner panel middle section. Since the rocker inner panel middle section and the rocker inner panel middle section reinforcement adopt a U-shaped structure and two layers of welding are adopted at the same time, the overall strength of the rocker inner panel middle section assembly can be ensured.

[0009] Optionally, the rocker inner panel rear section assembly includes a rocker inner panel rear section and a rocker inner panel rear section reinforcement, the cross sections of the rocker inner panel rear section and the rocker inner panel rear section reinforcement are both U-shaped, and the rocker inner panel rear section reinforcement is welded inside the rocker inner panel rear section. Since the rocker inner panel rear section and the rocker inner panel rear section reinforcement adopt a U-shaped structure and two layers of welding are adopted at the same time, the overall strength of the rocker inner panel rear section assembly can be ensured.

[0010] Optionally, the rocker outer panel assembly includes a rocker outer panel front section, a rocker outer panel front section reinforcement assembly and a rocker outer panel rear section assembly which are fixedly connected in sequence from front to back, and a B-pillar inner panel fixedly connected to the rocker outer panel front section reinforcement assembly. The rocker outer panel front section, the rocker outer panel front section reinforcement assembly and the B-pillar inner panel are located in the AB-pillar reinforcement structure assembly. The rocker outer panel rear section assembly is located in the rear side panel assembly and is an important component of the lower part of the side panel assembly, which can effectively ensure the integrity of the lower structure of the side panel assembly.

[0011] Optionally, the rocker outer panel front section reinforcement assembly includes a rocker outer panel front section reinforcement, and a rocker first support structure assembly and a rocker second support structure assembly respectively welded to the inner side of the rocker outer panel front section reinforcement;

[0012] The rocker outer panel rear section assembly includes the rocker outer panel rear section, and the rocker third support structure assembly and the rocker fourth support structure assembly respectively welded to the inner side of the rocker outer panel rear section. The rocker outer panel as a whole has four completed support structures, which can ensure effective support and force transmission in the side collision of the vehicle body, reduce the intrusion of the B-pillar assembly and the front floor assembly, effectively ensure the safety of passengers, and meet the side collision performance requirements.

[0013] Optionally, the first support structure assembly of the threshold, the second support structure assembly of the threshold, the third support structure assembly of the threshold, and the fourth support structure assembly of the threshold are all box structures. The box structure can ensure effective support and force transmission in side collisions of the vehicle body, reduce the intrusion of the B-pillar assembly and the front floor assembly, effectively ensure passenger safety, and meet side collision performance requirements.

[0014] Optionally, the threshold outer panel assembly further includes a threshold rear section sealing plate, which is connected to the threshold inner panel rear section and the threshold outer panel rear section by spot welding and welding sealant, respectively, which can effectively meet the sealing design requirements of the threshold rear section, reduce the risk of water leakage, and meet the airtightness requirements.

[0015] In a second aspect, the utility model discloses a vehicle, which adopts the door sill assembly as described in the utility model.

[0016] Beneficial effects of the utility model: The threshold assembly structure provided by the utility model, since the threshold inner panel assembly, the threshold outer panel assembly and the side panel outer panel are fixedly connected to form a closed cavity structure, and a supporting reinforcement structure is provided in the cavity structure, it can effectively ensure the rigidity performance of the side of the vehicle body as well as the side collision and small offset collision performance, while improving the bending stiffness performance of the vehicle body, and can be suitable for six-seater large SUV vehicles, and can also achieve a certain lightweight effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a door sill assembly provided in an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of the threshold inner panel assembly provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the structure of a threshold outer panel assembly provided in an embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the front section assembly of the rocker inner panel provided in an embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the structure of the middle section assembly of the rocker inner panel provided in an embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of the rear section assembly structure of the rocker inner panel provided in an embodiment of the present application;

[0023] Figure 7 This is a schematic diagram of the structure of the front section reinforcement assembly of the rocker outer panel provided in an embodiment of the present application;

[0024] Figure 8 This is a schematic diagram of the rear section assembly structure of the rocker outer panel provided in an embodiment of the present application;

[0025] Fig. 9 This is a schematic diagram of the structure of the lower inner panel of the A-pillar provided in an embodiment of the present application;

[0026] Fig.10This is a schematic diagram of the structure of the front section reinforcement of the rocker inner panel provided in an embodiment of the present application;

[0027] Fig.11 This is a schematic diagram of the front section structure of the door sill inner panel provided in an embodiment of the present application;

[0028] Fig.12 This is a schematic diagram of the structure of the middle section assembly of the rocker inner panel provided in an embodiment of the present application;

[0029] Fig.13 This is a schematic diagram of the structure of the middle section reinforcement of the rocker inner panel provided in an embodiment of the present application;

[0030] Fig.14 This is a schematic diagram of the rear section structure of the rocker inner panel provided in an embodiment of the present application;

[0031] Fig.15 This is a schematic diagram of the structure of the rear section reinforcement of the rocker inner panel provided in an embodiment of the present application;

[0032] Fig.16 This is a schematic diagram of the front section structure of the door sill outer panel provided in an embodiment of the present application;

[0033] Fig.17 This is a schematic diagram of the structure of the front section reinforcement of the rocker outer panel provided in an embodiment of the present application;

[0034] Fig.18 A schematic diagram of the side outer panel structure provided in an embodiment of the present application;

[0035] Fig.19 This is a schematic diagram of the rear section structure of the door sill outer panel provided in an embodiment of the present application;

[0036] Fig. 20 This is a schematic diagram of the rear-section sealing structure of the threshold provided in an embodiment of the present application;

[0037] In the figure:

[0038] 1- Door sill inner panel assembly;

[0039] 11-Sill inner panel front section assembly;

[0040] 111-A-pillar lower inner panel;

[0041] 1111- first overlapping surface A, 1112- second overlapping surface A, 1113- third overlapping surface A, 1114- fourth overlapping surface A, 1115- fifth overlapping surface A;

[0042] 112-front section reinforcement of the inner panel of the door sill;

[0043] 1121 - first overlapping surface B, 1122 - second overlapping surface B, 1123 - third overlapping surface B, 1124 - first mounting hole of welcome pedal, 1125 - mounting hole of door sill guard plate, 1126 - fourth overlapping surface B, 1127 - fifth overlapping surface B, 1128 - sixth overlapping surface B, 1129 - seventh overlapping surface B;

[0044] 113-front section of the door sill inner panel;

[0045] 1131 - first overlapping surface C, 1132 - second overlapping surface C, 1133 - third overlapping surface C, 1134 - fourth overlapping surface C, 1135 - fifth overlapping surface C, 1136 - sixth overlapping surface C, 1137 - seventh overlapping surface C, 1138 - eighth overlapping surface C, 1139 - ninth overlapping surface C;

[0046] 12-sill inner panel middle section assembly;

[0047] 121-middle section of the inner panel of the door sill;

[0048] 1211-first overlapping surface D, 1212-second overlapping surface D, 1213-third overlapping surface D, 1214-fourth overlapping surface D, 1215-fifth overlapping surface D, 1216-sixth overlapping surface D, 1217-seventh overlapping surface D, 1218-eighth overlapping surface D, 1219-ninth overlapping surface D, 1220-drainage ribs in the middle section of the inner panel of the door sill;

[0049] 122- Middle section reinforcement of the inner panel of the door sill;

[0050] 1221 - first overlapping surface E; 1222 - second overlapping surface E, 1223 - third overlapping surface E, 1224 - second mounting hole of the welcome pedal;

[0051] 13-sill inner panel rear section assembly;

[0052] 131-rear section of the door sill inner panel;

[0053] 1311-first overlapping surface F, 1312-second overlapping surface F, 1313-third overlapping surface F, 1314-fourth overlapping surface F, 1315-fifth overlapping surface F, 1316-drainage ribs at the rear section of the door sill inner panel, 1317-sixth overlapping surface F, 1318-seventh overlapping surface F, 1319-eighth overlapping surface F, 1320-ninth overlapping surface F;

[0054] 132-sill inner panel rear section reinforcement;

[0055] 1321 - first overlapping surface G, 1322 - second overlapping surface G, 1323 - third overlapping surface G, 1324 - third mounting hole of welcome pedal, 1325 - fourth overlapping surface G, 1326 - fifth overlapping surface G, 1327 - sixth overlapping surface G;

[0056] 2-side outer panels;

[0057] 21-first overlapping surface H, 22-second overlapping surface H, 23-third overlapping surface H, 24-fourth overlapping surface H, 25-fifth overlapping surface H, 26-sixth overlapping surface H, 27-side outer panel pre-fastening;

[0058] 3- Door sill outer panel assembly;

[0059] 31-front section of the door sill outer panel;

[0060] 311 - first overlapping surface I, 312 - second overlapping surface I, 313 - third overlapping surface I, 314 - fourth overlapping surface I, 315 - fifth overlapping surface I, 316 - sixth overlapping surface I, 317 - seventh overlapping surface I, 318 - eighth overlapping surface I, 319 - ninth overlapping surface I;

[0061] 32-sill outer panel front section reinforcement assembly;

[0062] 321-Sill outer panel front section reinforcement;

[0063] 3211-A-pillar cavity barrier glue installation hole, 3212-first overlapping surface J, 3213-second overlapping surface J, 3214-third overlapping surface J, 3215-fourth overlapping surface J;

[0064] 322-sill first supporting structure assembly;

[0065] 3221-sill first support structure reinforcement;

[0066] 3222-sill first support structure support member;

[0067] 323-sill second supporting structure assembly;

[0068] 3231-Sill second support structure reinforcement;

[0069] 3232-sill second support structure support member;

[0070] 33-B-pillar inner panel;

[0071] 34-sill outer panel rear section assembly;

[0072] 341-rear section of the door sill outer panel;

[0073] 3411 - first overlapping surface K, 3412 - second overlapping surface K, 3413 - third overlapping surface K, 3414 - fourth overlapping surface K, 3415 - fifth overlapping surface K, 3416 - sixth overlapping surface K, 3417 - seventh overlapping surface K, 3418 - eighth overlapping surface K, 3419 - ninth overlapping surface K;

[0074] 342-sill third support structure assembly;

[0075] 3421-Third support structure reinforcement for door sill;

[0076] 3422-Threshold third support structure support member;

[0077] 343-sill fourth support structure assembly;

[0078] 3431- Door sill fourth support structure reinforcement;

[0079] 3432-sill fourth support structure support member;

[0080] 35-sill rear section sealing plate;

[0081] 351 - first overlapping surface L, 352 - second overlapping surface L, 353 - third overlapping surface L, 354 - fourth overlapping surface L, 355 - fifth overlapping surface L, 356 - sixth overlapping surface L, 357 - seventh overlapping surface L, 358 - eighth overlapping surface L, 359 - ninth overlapping surface L. DETAILED DESCRIPTION

[0082] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or in the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention.

[0083] like Figures 1 to 20 As shown, in the embodiment of the present application, a threshold assembly structure includes a threshold inner panel assembly 1, a side panel outer panel 2 and a threshold outer panel assembly 3. The threshold inner panel assembly 1, the threshold outer panel assembly 3 and the side panel outer panel 2 are fixedly connected to form a closed cavity structure, and a support reinforcement structure is provided in the cavity structure.

[0084] When the threshold assembly structure is used on a vehicle, the threshold assembly structure is located at the overlap position between the lower part of the body side assembly and the lower body assembly. The threshold assembly structure is a complete closed cavity structure with a supporting reinforcement structure designed inside. It is an important component structure to ensure the side rigidity performance of the body, an important structure to ensure the side collision performance of the body and the small offset collision performance of the threshold area, and an important structure to ensure the bending stiffness performance of the body.

[0085] like Figure 2As shown, in the embodiment of the present application, the rocker inner panel assembly 1 includes a rocker inner panel front section assembly 11, a rocker inner panel middle section assembly 12, and a rocker inner panel rear section assembly 13 which are fixedly connected together from front to back. When used on a vehicle, the rocker inner panel front section assembly 11 is located in the engine compartment assembly, the rocker inner panel middle section assembly 12 is located in the front floor assembly, and the rocker inner panel rear section assembly 13 is located in the rear floor assembly. The rocker inner panel assembly 1 is also an important structure constituting the lower body assembly, and is an important component to ensure the integrity of the side structure of the lower body assembly.

[0086] like Figure 4 As shown, in the embodiment of the present application, the rocker inner panel front section assembly 11 includes an A-pillar lower inner panel 111, a rocker inner panel front section reinforcement 112, and a rocker inner panel front section 113 which are welded together from the outside to the inside. The rocker inner panel front section assembly 11 is welded in three layers to ensure the overall strength of the rocker inner panel front section assembly 11.

[0087] like Figure 5 As shown, in the embodiment of the present application, the rocker inner panel middle section assembly 12 includes a rocker inner panel middle section 121 and a rocker inner panel middle section reinforcement 122. The cross sections of the rocker inner panel middle section 121 and the rocker inner panel middle section reinforcement 122 are U-shaped, and the rocker inner panel middle section reinforcement 122 is welded inside the rocker inner panel middle section 121. Since the rocker inner panel middle section 121 and the rocker inner panel middle section reinforcement 122 adopt a U-shaped structure and two layers of welding are adopted at the same time, the overall strength of the rocker inner panel middle section assembly 12 can be ensured.

[0088] like Figure 6 As shown, in the embodiment of the present application, the rocker inner panel rear section assembly 13 includes a rocker inner panel rear section 131 and a rocker inner panel rear section reinforcement 132 .

[0089] like Figure 6 As shown, in the embodiment of the present application, the rocker inner panel rear section assembly 13 includes a rocker inner panel rear section 131 and a rocker inner panel rear section reinforcement 132. The cross sections of the rocker inner panel rear section 131 and the rocker inner panel rear section reinforcement 132 are both U-shaped, and the rocker inner panel rear section reinforcement 132 is welded inside the rocker inner panel rear section 131. Since the rocker inner panel rear section 131 and the rocker inner panel rear section reinforcement 132 adopt a U-shaped structure and two layers of welding are adopted at the same time, the overall strength of the rocker inner panel rear section assembly 13 can be ensured.

[0090] like Figure 3As shown, in the embodiment of the present application, the sill outer panel assembly 3 includes a sill outer panel front section 31, a sill outer panel front section reinforcement assembly 32, and a sill outer panel rear section assembly 34, which are fixedly connected from front to back, and a B-pillar inner panel 33 fixedly connected to the sill outer panel front section reinforcement assembly 32. The sill outer panel front section 31, the sill outer panel front section reinforcement assembly 32, and the B-pillar inner panel 33 are located in the AB-pillar reinforcement structure assembly. The sill outer panel rear section assembly 34 is located in the rear side panel assembly, and is an important component of the lower part of the side panel assembly, which can effectively ensure the integrity of the lower structure of the side panel assembly.

[0091] like Figure 3 As shown, in the embodiment of the present application, the threshold outer panel assembly 3 further includes a threshold rear section sealing plate 35, which is respectively connected to the threshold inner panel rear section 131 and the threshold outer panel rear section 341 by spot welding and welding sealant, which can effectively ensure the sealing design requirements of the threshold rear, reduce the risk of water leakage, and ensure the airtightness requirements.

[0092] like Figure 7 As shown, in the embodiment of the present application, the threshold outer panel front section reinforcement assembly 32 includes a threshold outer panel front section reinforcement 321, and a threshold first support structure assembly 322 and a threshold second support structure assembly 323 respectively welded to the inner side of the threshold outer panel front section reinforcement 321. Among them, the threshold first support structure assembly 322 includes a threshold first support structure reinforcement 3221 and a threshold first support structure support 3222, and the threshold first support structure reinforcement 3221 and the threshold first support structure support 3222 are welded to form a box structure. The threshold second support structure assembly 323 includes a threshold second support structure reinforcement 3231 and a threshold second support structure support 3232, and the threshold second support structure reinforcement 3231 and the threshold second support structure support 3232 are welded to form a box structure.

[0093] like Figure 8 As shown, in the embodiment of the present application, the threshold outer panel rear section assembly 34 includes a threshold outer panel rear section 341, and a threshold third support structure assembly 342 and a threshold fourth support structure assembly 343 respectively welded to the inner side of the threshold outer panel rear section 341. Among them, the threshold third support structure assembly 342 includes a threshold third support structure reinforcement 3421 and a threshold third support structure support 3422, and the threshold third support structure reinforcement 3421 and the threshold third support structure support 3422 are welded to form a box structure. The threshold fourth support structure assembly 343 includes a threshold fourth support structure reinforcement 3431 and a threshold fourth support structure support 3432, and the threshold fourth support structure reinforcement 3431 and the threshold fourth support structure support 3432 are welded to form a box structure.

[0094] In the embodiment of the present application, the first support structure assembly 322 of the threshold, the second support structure assembly 323 of the threshold, the front section 31 of the threshold outer panel, and the front section reinforcement 321 of the threshold outer panel are effectively connected to form two complete support structures at the front of the threshold outer panel. The third support structure assembly 342 of the threshold, the fourth support structure assembly 343 of the threshold, and the rear section 341 of the threshold outer panel are effectively connected to form two complete support structures at the rear of the threshold outer panel. That is, the threshold outer panel as a whole has four completed support structures, which can ensure effective support and force transmission in the side collision of the vehicle body, reduce the intrusion of the B-pillar assembly and the front floor assembly, effectively ensure the safety of passengers, and meet the side collision performance requirements.

[0095] In the embodiment of the present application, the first support structure assembly 322, the second support structure assembly 323 and the third support structure assembly 342 of the threshold have a common assembly structure, and the support member in the fourth support structure assembly 343 of the threshold matches the rear section 341 of the threshold outer panel. At the same time, the first support structure reinforcement member 3221, the second support structure reinforcement member 3231, the third support structure reinforcement member 3421 and the fourth support structure reinforcement member 3431 of the threshold are common parts, the first support structure support member 3222, the second support structure support member 3232 and the third support structure support member 3422 of the threshold are common parts, and the fourth support structure support member 3432 of the threshold matches the rear section 341 of the threshold outer panel. In this way, the number of parts molds is reduced and the cost is reduced.

[0096] In the embodiment of the present application, the front section 113 of the sill inner panel, the middle section 121 of the sill inner panel, and the rear section 131 of the sill inner panel are all formed by stamping with coated hot-formed parts. The A-pillar lower inner panel 111, the front section reinforcement 112 of the sill inner panel, the middle section reinforcement 122 of the sill inner panel, and the rear section reinforcement 132 of the sill inner panel are all formed by stamping with galvanized high-strength steel plates, which can effectively ensure the strength performance and anti-corrosion performance requirements of the sill inner panel assembly (1).

[0097] In the embodiment of the present application, the front section 31 of the rocker outer panel is stamped by an integrated thermoformed part of unequal thickness, which can reduce the number of parts and ensure the structural strength of the reinforcement. The B-pillar inner panel 33 is also a thermoformed part, and is connected to the upper and lower flanges of the front section 31 of the rocker outer panel by spot welding, plug welding and structural adhesive, which can ensure the stability and rigidity of the middle part of the rocker outer panel assembly 3.

[0098] In the embodiment of the present application, the front section reinforcement 321 of the threshold outer panel is formed by stamping of galvanized high-strength steel plate. The rear section 341 of the threshold outer panel is formed by stamping of coated hot-formed parts. The rear section 341 of the threshold outer panel is connected with the front section 31 of the threshold outer panel and the front section reinforcement 321 of the threshold outer panel by spot welding and structural adhesive, which can effectively ensure the rigidity and strength performance of the threshold outer panel assembly 3.

[0099] like Fig. 9As shown, in the embodiment of the present application, a first overlapping surface A1111, a second overlapping surface A1112, a third overlapping surface A1113, a fourth overlapping surface A1114 and a fifth overlapping surface A1115 are designed on the A-pillar lower inner panel 111.

[0100] like Fig.10 As shown, in the embodiment of the present application, the front section reinforcement 112 of the sill inner panel is designed with a first overlapping surface B1121, a second overlapping surface B1122, a third overlapping surface B1123, a first mounting hole 1124 of the welcome pedal, a sill guard plate mounting hole 1125, a fourth overlapping surface B1126, a fifth overlapping surface B1127, a sixth overlapping surface B1128 and a seventh overlapping surface B1129.

[0101] like Fig.11 As shown, in the embodiment of the present application, the front section 113 of the inner panel of the rocker sill is designed with a first lap surface C1131, a second lap surface C1132, a third lap surface C1133, a fourth lap surface C1134, a fifth lap surface C1135, a sixth lap surface C1136, a seventh lap surface C1137, an eighth lap surface C1138 and a ninth lap surface C1139.

[0102] like Fig.12 As shown, in the embodiment of the present application, the middle section 121 of the inner panel of the rocker sill is designed with a first lap surface D1211, a second lap surface D1212, a third lap surface D1213, a fourth lap surface D1214, a fifth lap surface D1215, a sixth lap surface D1216, a seventh lap surface D1217, an eighth lap surface D1218, a ninth lap surface D1219 and a drainage rib 1220 in the middle section of the inner panel of the rocker sill.

[0103] like Fig.13 As shown, in the embodiment of the present application, a first overlapping surface E1221, a second overlapping surface E1222, a third overlapping surface E1223 and a second installation hole 1224 of the welcome pedal are designed on the rocker inner panel middle section reinforcement 122.

[0104] like Fig.14 As shown, in the embodiment of the present application, the rear section 131 of the inner panel of the rocker sill is designed with a first overlapping surface F1311, a second overlapping surface F1312, a third overlapping surface F1313, a fourth overlapping surface F1314, a fifth overlapping surface F1315, a drainage rib 1316 of the rear section of the inner panel of the rocker sill, a sixth overlapping surface F1317, a seventh overlapping surface F1318, an eighth overlapping surface F1319 and a ninth overlapping surface F1320.

[0105] like Fig.15As shown, in the embodiment of the present application, the rear section reinforcement 132 of the sill inner panel is designed with a first overlapping surface G1321, a second overlapping surface G1322, a third overlapping surface G1323, a third mounting hole 1324 of the welcome pedal, a fourth overlapping surface G1325, a fifth overlapping surface G1326 and a sixth overlapping surface G1327.

[0106] like Fig.16 As shown, in the embodiment of the present application, a first overlapping surface I311, a second overlapping surface I312, a third overlapping surface I313, a fourth overlapping surface I314, a fifth overlapping surface I315, a sixth overlapping surface I316, a seventh overlapping surface I317, an eighth overlapping surface I318 and a ninth overlapping surface I319 are designed on the front section 31 of the rocker outer panel.

[0107] like Fig.17 As shown, in the embodiment of the present application, the rocker outer panel front section reinforcement 321 is designed with an A-pillar cavity barrier glue installation hole 3211, a first overlapping surface J3212, a second overlapping surface J3213, a third overlapping surface J3214 and a fourth overlapping surface J3215.

[0108] like Fig.18 As shown, in the embodiment of the present application, the side outer panel 2 is designed with a first overlapping surface H21, a second overlapping surface H22, a third overlapping surface H23, a fourth overlapping surface H24, a fifth overlapping surface H25, a sixth overlapping surface H26 and a side outer panel pre-fastening 27.

[0109] like Fig.19 As shown, in the embodiment of the present application, the rear section 341 of the rocker outer panel is designed with a first lap surface K3411, a second lap surface K3412, a third lap surface K3413, a fourth lap surface K3414, a fifth lap surface K3415, a sixth lap surface K3416, a seventh lap surface K3417, an eighth lap surface K3418 and a ninth lap surface K3419.

[0110] like Fig. 20 As shown, in the embodiment of the present application, the rear section cover plate 35 of the door sill is designed with a first lap surface L351, a second lap surface L352, a third lap surface L353, a fourth lap surface L354, a fifth lap surface L355, a sixth lap surface L356, a seventh lap surface L357, an eighth lap surface L358 and a ninth lap surface L359.

[0111] like Figure 4 , Fig. 9 and Fig.11As shown, in the embodiment of the present application, the second overlapping surface A1112 of the A-pillar lower inner panel 111 is fitted with the second overlapping surface C1132 of the rocker inner panel front section 113, and is connected by two layers of spot welding. The fourth overlapping surface A1114 of the A-pillar lower inner panel 111 is fitted with the eighth overlapping surface C1138 of the rocker inner panel front section 113, and is connected by two layers of spot welding.

[0112] like Figure 4 , Fig.10 and Fig.11 As shown, in the embodiment of the present application, the first overlapping surface B1121 of the front section reinforcement of the sill inner panel 112 is fitted with the second overlapping surface C1132 of the front section of the sill inner panel 113, and is connected by two layers of spot welding. The sixth overlapping surface B1128 of the front section reinforcement of the sill inner panel 112 is fitted with the second overlapping surface C1132 of the front section of the sill inner panel 113, and is connected by two layers of spot welding. The second overlapping surface B1122 of the front section reinforcement of the sill inner panel 112 is fitted with the third overlapping surface C1133 of the front section of the sill inner panel 113, and is connected by two layers of spot welding. The fifth overlapping surface B1127 of the front section reinforcement of the sill inner panel 112 is fitted with the third overlapping surface C1133 of the front section of the sill inner panel 113, and is connected by two layers of spot welding. The third overlap surface B1123 of the sill inner front section reinforcement 112 is fitted with the fifth overlap surface C1135 of the sill inner front section 113, and is connected by two-layer spot welding. The fourth overlap surface B1126 of the sill inner front section reinforcement 112 is fitted with the fifth overlap surface C1135 of the sill inner front section 113, and is connected by two-layer spot welding.

[0113] like Figure 4 , Fig. 9 , Fig.10 and Fig.11 As shown, in the embodiment of the present application, the third overlapping surface A1113 of the A-pillar lower inner panel 111, the seventh overlapping surface B1129 of the rocker inner panel front section reinforcement 112 and the third overlapping surface C1133 of the rocker inner panel front section 113 are fitted together and connected by three-layer spot welding.

[0114] In the embodiment of the present application, the sill inner panel assembly 1 can ensure the stable connection of the A-pillar lower inner panel 111, the sill inner panel front section reinforcement 112 and the sill inner panel front section 113 through the above connection method, ensure the structural integrity of the sill inner panel front section assembly 11, and ensure the strength performance requirements of the front part of the sill assembly.

[0115] like Figure 5 , Fig.12 and Fig.13As shown, in the embodiment of the present application, the second lap joint surface D1212 of the middle section of the sill inner panel 121 is fitted with the first lap joint surface E1221 of the middle section reinforcement 122 of the sill inner panel, and two layers of spot welding are used to connect. The sixth lap joint surface D1216 of the middle section of the sill inner panel 121 is fitted with the second lap joint surface E1222 of the middle section reinforcement 122 of the sill inner panel, and two layers of spot welding are used to connect. The ninth lap joint surface D1219 of the middle section of the sill inner panel 121 is fitted with the third lap joint surface E1223 of the middle section reinforcement 122 of the sill inner panel, and two layers of spot welding are used to connect. The sill inner panel middle section assembly 12 adopts this connection method to ensure the fixed connection between the sill inner panel middle section 121 and the sill inner panel middle section reinforcement 122, ensure the structural integrity of the sill inner panel middle section assembly 12, and ensure the strength performance requirements of the middle part of the sill assembly.

[0116] like Figure 6 , Fig.14 and Fig.15 As shown, in the embodiment of the present application, the first overlapping surface F1311 of the rear section of the inner sill panel 131 is fitted with the first overlapping surface G1321 of the rear section reinforcement 132 of the inner sill panel, and two layers of spot welding are used to connect. The second overlapping surface F1312 of the rear section of the inner sill panel 131 is fitted with the second overlapping surface G1322 of the rear section reinforcement 132 of the inner sill panel, and two layers of spot welding are used to connect. The fourth overlapping surface F1314 of the rear section of the inner sill panel 131 is fitted with the third overlapping surface G1323 of the rear section reinforcement 132 of the inner sill panel, and two layers of spot welding are used to connect. The sixth overlapping surface F1317 of the rear section of the inner sill panel 131 is fitted with the fifth overlapping surface G1326 of the rear section reinforcement 132 of the inner sill panel, and two layers of spot welding are used to connect. The seventh overlap surface F1318 of the rocker inner panel rear section 131 is fitted with the sixth overlap surface G1327 of the rocker inner panel rear section reinforcement 132, and is connected by two layers of spot welding. The rocker inner panel rear section assembly 13 adopts this connection method, which ensures the fixed connection between the rocker inner panel rear section 131 and the rocker inner panel rear section reinforcement 132, ensures the structural integrity of the rocker inner panel rear section assembly 13, and ensures the strength performance requirements of the rear part of the rocker assembly.

[0117] like Figure 2 , Figure 4 , Figure 5 , Fig.10 , Fig.11 and Fig.12As shown, in the embodiment of the present application, the first overlap surface B1121 of the sill inner panel front section reinforcement 112, the second overlap surface C1132 of the sill inner panel front section 113 and the second overlap surface D1212 of the sill inner panel middle section 121 are fitted and connected by three-layer spot welding. The seventh overlap surface B1129 of the sill inner panel front section reinforcement 112, the third overlap surface C1133 of the sill inner panel front section 113 and the third overlap surface D1213 of the sill inner panel middle section 121 are fitted and connected by three-layer spot welding. The second overlap surface B1122 of the sill inner panel front section reinforcement 112, the fourth overlap surface C1134 of the sill inner panel front section 113 and the fourth overlap surface D1214 of the sill inner panel middle section 121 are fitted and connected by three-layer spot welding. The third lap joint surface B1123 of the sill inner panel front section reinforcement 112, the fifth lap joint surface C1135 of the sill inner panel front section 113 and the ninth lap joint surface D1219 of the sill inner panel middle section 121 are fitted and connected by three-layer spot welding. This connection method ensures a stable connection between the sill inner panel front section assembly 11 and the sill inner panel middle section assembly 12.

[0118] like Figure 2 , Figure 5 , Figure 6 , Fig.12 , Fig.13 and Fig.14 As shown, in the embodiment of the present application, the second lap surface D1212 of the middle section of the sill inner panel 121 is fitted with the first lap surface F1311 of the rear section of the sill inner panel 131, and two layers of spot welding are used for connection. The seventh lap surface D1217 of the middle section of the sill inner panel 121 and the second lap surface E1222 of the middle section of the sill inner panel reinforcement 122 are fitted with the second lap surface F1312 of the rear section of the sill inner panel 131, and three layers of spot welding are used for connection. The ninth lap surface D1219 of the middle section of the sill inner panel 121 and the third lap surface E1223 of the middle section of the sill inner panel reinforcement 122 are fitted with the fourth lap surface F1314 of the rear section of the sill inner panel 131, and three layers of spot welding are used for connection. The above connection method can ensure the stable connection between the middle section of the sill inner panel assembly 12 and the rear section of the sill inner panel assembly 13.

[0119] like Figure 3 , Fig.16 , Fig.17As shown, in the embodiment of the present application, the second overlap surface I312 of the front section of the sill outer panel 31 is fitted with the first overlap surface J3212 of the front section reinforcement 321 of the sill outer panel, and two layers of spot welding are used for connection. The fourth overlap surface I314 of the front section of the sill outer panel 31 is fitted with the third overlap surface J3214 of the front section reinforcement 321 of the sill outer panel, and two layers of spot welding are used for connection. The fifth overlap surface I315 of the front section of the sill outer panel 31 is fitted with the second overlap surface J3213 of the front section reinforcement 321 of the sill outer panel, and two layers of spot welding are used for connection. The sixth overlap surface I316 of the front section of the sill outer panel 31 is fitted with the fourth overlap surface J3215 of the front section reinforcement 321 of the sill outer panel, and two layers of spot welding are used for connection. This connection method can ensure the stable connection between the front section of the sill outer panel 31 and the front section reinforcement assembly 32 of the sill outer panel, ensure the integrity of the front structure of the sill outer panel assembly 3, and ensure the performance requirements of the front of the sill.

[0120] like Figure 3 , Fig.16 and Fig.19 As shown, in the embodiment of the present application, the fourth overlap surface I314 of the front section 31 of the threshold outer panel is fitted with the second overlap surface K3412 of the rear section 341 of the threshold outer panel, and connected by structural adhesive. The fifth overlap surface I315 of the front section 31 of the threshold outer panel is fitted with the third overlap surface K3413 of the rear section 341 of the threshold outer panel, and connected by spot welding and structural adhesive. The sixth overlap surface I316 of the front section 31 of the threshold outer panel is fitted with the fourth overlap surface K3414 of the rear section 341 of the threshold outer panel, and connected by spot welding. The above connection method can ensure the stable connection between the front section 31 of the threshold outer panel and the rear section assembly 34 of the threshold outer panel.

[0121] like Figure 2 , Figure 4 , Fig. 9 , Fig.11 , Fig.16 , Fig.18 As shown, in the embodiment of the present application, the first overlap surface A1111 of the A-pillar lower inner panel 111, the first overlap surface C1131 of the sill inner panel front section 113, the first overlap surface I311 of the sill outer panel front section 31, and the second overlap surface H22 of the side outer panel 2 are fitted and connected by spot welding. The fifth overlap surface A1115 of the A-pillar lower inner panel 111, the seventh overlap surface C1137 of the sill inner panel front section 113 and the ninth overlap surface I319 of the sill outer panel front section 31 are fitted and connected by spot welding. The seventh overlap surface C1137 of the sill inner panel front section 113 and the seventh overlap surface I317 of the sill outer panel front section 31 are fitted and connected by spot welding. This connection method can ensure the stable connection between the sill inner panel front section assembly 11 and the sill outer panel front section 31 and the side outer panel 2, and ensure the rigidity performance of the front part of the sill assembly.

[0122] like Figure 2 , Figure 3 , Fig.12 , Fig.16 , Fig.18 As shown, in the embodiment of the present application, the first overlap surface D1211 of the middle section 121 of the sill inner panel, the first overlap surface I311 of the front section 31 of the sill outer panel, and the second overlap surface H22 of the side outer panel 2 are fitted and connected by spot welding. The first overlap surface D1211 of the middle section 121 of the sill inner panel, the third overlap surface I313 of the front section 31 of the sill outer panel, and the third overlap surface H23 of the side outer panel 2 are fitted and connected by spot welding. The fifth overlap surface D1215 of the middle section 121 of the sill inner panel and the seventh overlap surface I317 of the front section 31 of the sill outer panel are fitted and connected by spot welding. The above connection method can ensure the stable connection between the middle section assembly 12 of the sill inner panel, the front section 31 of the sill outer panel, and the side outer panel 2, and ensure the rigidity performance of the middle part of the sill assembly.

[0123] like Figure 5 , Fig.16 , Fig.18 and Fig.19 As shown, in the embodiment of the present application, the first overlap surface D1211 of the middle section 121 of the sill inner panel, the third overlap surface I313 of the front section 31 of the sill outer panel, the third overlap surface H23 of the side outer panel 2, and the first overlap surface K3411 of the rear section 341 of the sill outer panel are fitted together, and four-layer spot welding is adopted for connection. The third overlap surface I313 of the front section 31 of the sill outer panel is fitted together with the third overlap surface H23 of the side outer panel 2 and the first overlap surface K3411 of the rear section 341 of the sill outer panel, and three-layer spot welding is adopted for connection. The fifth overlap surface D1215 of the middle section 121 of the sill inner panel, the seventh overlap surface I317 of the front section 31 of the sill outer panel, and the fifth overlap surface K3415 of the rear section 341 of the sill outer panel are fitted together, and three-layer spot welding is adopted for connection. The seventh lap joint surface I317 of the front section 31 of the rocker outer panel is fitted with the fifth lap joint surface K3415 of the rear section 341 of the rocker outer panel, and is connected by two layers of spot welding. The above connection method can ensure the stable connection between the rocker inner panel rear section assembly 13 and the rocker outer panel front section 31, the side panel outer panel 2, and the rocker outer panel rear section assembly 34, and ensure the rigidity performance of the rear part of the rocker assembly.

[0124] like Fig.14 , Fig.18 , Fig.19 and Fig. 20As shown, in the embodiment of the present application, the first overlapping surface L351 of the rear section of the threshold cover plate 35 is fitted with the seventh overlapping surface K3417 of the rear section of the threshold outer panel 341, and is connected by two layers of spot welding. The second overlapping surface L352 of the rear section of the threshold cover plate 35 is fitted with the sixth overlapping surface H26 of the side outer panel 2, and is connected by two layers of spot welding. The third overlapping surface L353 of the rear section of the threshold cover plate 35 is fitted with the fifth overlapping surface H25 of the side outer panel 2, and is connected by two layers of spot welding. The fourth overlapping surface L354 of the rear section of the threshold cover plate 35 is fitted with the fourth overlapping surface H24 of the side outer panel 2, and is connected by two layers of spot welding. The fifth overlapping surface L355 of the rear section of the threshold cover plate 35 and the first overlapping surface H21 of the side outer panel 2 are fitted with the eighth overlapping surface K3418 of the rear section of the threshold outer panel 341, and are connected by three layers of spot welding. The sixth lap surface L356 of the threshold rear section sealing plate 35 is fitted with the sixth lap surface K3416 of the threshold outer panel rear section 341, and is connected by two layers of spot welding. The seventh lap surface L357 of the threshold rear section sealing plate 35 is fitted with the sixth lap surface F1317 of the threshold inner panel rear section 131, and is connected by two layers of spot welding. The eighth lap surface L358 of the threshold rear section sealing plate 35 is fitted with the seventh lap surface F1318 of the threshold inner panel rear section 131, and is connected by two layers of spot welding. The ninth lap surface L359 of the threshold rear section sealing plate 35 is fitted with the eighth lap surface F1319 of the threshold inner panel rear section 131, and is connected by two layers of spot welding. The above connection method can ensure the stable connection between the threshold rear section sealing plate 35 and the threshold outer panel rear section 341, the threshold inner panel rear section 131, and the side outer panel 2, and ensure the integrity of the threshold rear structure and the sealing performance of the threshold rear.

[0125] In the embodiment of the present application, the rocker inner panel assembly 1 is firmly connected to the rocker outer panel assembly 3 and the side panel outer panel 2 to form a complete closed cavity structure, and a supporting structure is designed to effectively ensure the rigidity and bending stiffness performance of the side of the vehicle body.

[0126] The door sill assembly structure provided by the utility model is designed at the overlapping position of the bottom of the side panel assembly and the lower body assembly, and is jointly assembled into a complete closed cavity structure through the effective connection of the door sill inner panel assembly, the door sill outer panel assembly and the side panel outer panel. Both the door sill inner panel assembly and the door sill outer panel assembly are designed with a complete reinforcement structure, and are designed with four complete supporting structures to form a complete force transmission structure, which can effectively ensure the rigidity performance of the side of the vehicle body as well as the side collision and small offset collision performance, while improving the bending rigidity performance of the vehicle body and achieving a certain lightweight effect.

[0127] In an embodiment of the present application, a vehicle adopts the door sill assembly as described in the embodiment of the present application.

[0128] The above-mentioned embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above-mentioned embodiments. Any other changes, modifications, substitutions, combinations and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement modes and shall be included in the protection scope of the present invention.

Claims

1. A threshold assembly, characterized in that: The invention comprises a threshold inner panel assembly (1), a threshold outer panel assembly (3) and a side panel outer panel (2), wherein the threshold inner panel assembly (1), the threshold outer panel assembly (3) and the side panel outer panel (2) are fixedly connected to form a closed cavity structure, and a supporting reinforcement structure is provided in the cavity structure; The threshold inner panel assembly (1) comprises a threshold inner panel front section assembly (11), a threshold inner panel middle section assembly (12) and a threshold inner panel rear section assembly (13) which are fixedly connected together in sequence from front to rear.

2. The door sill assembly according to claim 1, characterized in that: The rocker inner panel front section assembly (11) comprises an A-pillar lower inner panel (111), a rocker inner panel front section reinforcement (112) and a rocker inner panel front section (113) which are welded together in sequence from the outside to the inside.

3. The door sill assembly according to claim 1, characterized in that: The threshold inner panel middle section assembly (12) comprises a threshold inner panel middle section (121) and a threshold inner panel middle section reinforcement (122); the cross sections of the threshold inner panel middle section (121) and the threshold inner panel middle section reinforcement (122) are U-shaped, and the threshold inner panel middle section reinforcement (122) is welded inside the threshold inner panel middle section (121).

4. The door sill assembly according to claim 1, characterized in that: The sill inner panel rear section assembly (13) comprises a sill inner panel rear section (131) and a sill inner panel rear section reinforcement (132); the cross sections of the sill inner panel rear section (131) and the sill inner panel rear section reinforcement (132) are both U-shaped, and the sill inner panel rear section reinforcement (132) is welded inside the sill inner panel rear section (131).

5. The door sill assembly according to claim 4, characterized in that: The rocker outer panel assembly (3) comprises a rocker outer panel front section (31), a rocker outer panel front section reinforcement assembly (32) and a rocker outer panel rear section assembly (34) which are fixedly connected in sequence from front to rear, and a B-pillar inner panel (33) which is fixedly connected to the rocker outer panel front section reinforcement assembly (32).

6. The door sill assembly according to claim 5, characterized in that: The threshold outer panel front section reinforcement component assembly (32) comprises a threshold outer panel front section reinforcement component (321), and a threshold first support structure assembly (322) and a threshold second support structure assembly (323) respectively welded to the inner side of the threshold outer panel front section reinforcement component (321); The threshold outer panel rear section assembly (34) comprises a threshold outer panel rear section (341), and a threshold third support structure assembly (342) and a threshold fourth support structure assembly (343) respectively welded to the inner side of the threshold outer panel rear section (341).

7. The door sill assembly according to claim 6, characterized in that: The first threshold support structure assembly (322), the second threshold support structure assembly (323), the third threshold support structure assembly (342), and the fourth threshold support structure assembly (343) are all box structures.

8. The door sill assembly according to claim 7, characterized in that: The threshold outer panel assembly (3) further comprises a threshold rear section sealing plate (35), and the threshold rear section sealing plate (35) is respectively connected to the threshold inner panel rear section (131) and the threshold outer panel rear section (341) by spot welding and welding sealant.

9. A vehicle, characterized in that: A door sill assembly as described in any one of claims 1 to 8 is adopted.

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