Vehicle body reinforcement structure for sliding door and vehicle

Abstract

A body reinforcement structure for a sliding door and a vehicle. The body reinforcement structure for a sliding door includes an A-pillar, a B-pillar, a sliding door upper guide groove assembly, and a joint connector. The joint connector is provided with a first connection portion, a second connection portion, and a third connection portion, wherein the first connection portion is connected to the sliding door upper guide groove assembly, the second connection portion is connected to the A-pillar, and the third connection portion is connected to the B-pillar. Utilizing the joint connector, the continuity between the A-pillar, the B-pillar, and the vehicle's roof side beam is improved. Since the sliding door upper guide groove assembly does not overly restrict the size of the connection structure, a firm connection structure between the A-pillar, the B-pillar, and the vehicle body roof can be formed; at the same time, since the vehicle's roof side beam no longer needs to accommodate the connection structure of the A-pillar and the B-pillar, a closed structure can be formed so that the sliding door upper guide groove assembly is enclosed within the roof side beam; thereby greatly improving the structural strength of the vehicle body and improving the scores for side impact and offset impact.

Description

Technical Field

[0001] This article relates to vehicle body structure technology, and in particular to a vehicle body reinforcement structure with a sliding door and a vehicle. Background Art

[0002] As vehicle usage demands change, MPVs (Multi-Purpose Vehicles) are becoming increasingly common. MPVs typically seat six or seven passengers and feature large rear doors to accommodate the entry and exit needs of the two rear rows. Consequently, these rear doors are often designed as sliding doors. These doors incorporate upper, middle, and lower guide rails located in the upper, middle, and lower sections of the vehicle body to facilitate sliding movement.

[0003] In existing technology, the A- and B-pillars are connected to the roof rails. Because the roof rails need to accommodate the upper guide rail assembly of the sliding door, the cross-sectional dimensions of the connection structure between the A- and B-pillars are limited. Consequently, the connection between the A- and B-pillars and the roof rails is weak. Furthermore, because the A- and B-pillars are directly connected to the roof rails, the roof rails cannot form a closed structure. Both of these factors affect the scores for side and offset impacts. Summary of the Invention

[0004] An embodiment of the present application provides a body reinforcement structure and a vehicle for a sliding door. By utilizing the joint connector, the connection between the A-pillar, the B-pillar and the guide rail groove assembly on the sliding door is achieved, thereby improving the continuity between the A-pillar, the B-pillar and the roof side beam of the vehicle, which in turn helps to improve the scores of side impact and offset impact.

[0005] In a first aspect, an embodiment of the present application provides a body reinforcement structure for a sliding door, wherein the body reinforcement structure for the sliding door includes an A-pillar, a B-pillar, an upper guide rail groove assembly for the sliding door, and a joint connector; the joint connector is provided with a first connection portion, a second connection portion, and a third connection portion, wherein the first connection portion is connected to the upper guide rail groove assembly for the sliding door, the second connection portion is connected to the A-pillar, and the third connection portion is connected to the B-pillar.

[0006] This joint connector connects the A-pillar, B-pillar, and the sliding door upper rail assembly, improving the continuity between the A-pillar, B-pillar, and the vehicle's roof rail. Because the sliding door upper rail assembly doesn't significantly restrict the dimensions of the connection structure, it creates a secure connection between the A-pillar, B-pillar, and the vehicle's roof. Furthermore, since the vehicle's roof rail no longer needs to accommodate the A-pillar and B-pillar connection, it can form a closed structure, enclosing the sliding door upper rail assembly within the roof rail. This significantly enhances the vehicle's structural strength and improves its side and offset impact scores.

[0007] In an exemplary embodiment, the joint connector includes: a connecting plate; and a side panel. The side panel is connected to a circumferential edge of the connecting plate and defines a cavity with the connecting plate. The side panel is provided with at least a portion of the first connecting portion and at least a portion of the third connecting portion, and the connecting plate is provided with at least a portion of the second connecting portion.

[0008] In an exemplary embodiment, the side panel includes a first side panel, a second side panel, a third side panel and a fourth side panel connected in sequence end to end; the first side panel is located on the rear side of the third side panel, and the second side panel is located on the lower side of the fourth side panel; the first side panel is provided with at least one fixing portion, the fourth side panel is provided with multiple fixing portions, and the connecting plate is provided with at least one fixing portion; the first connecting portion at least includes the fixing portion provided on the first side panel; the second connecting portion at least includes the fixing portion provided on the connecting plate; the third connecting portion at least includes part of the fixing portion provided on the fourth side panel.

[0009] In an exemplary embodiment, the joint connector further includes: an extension plate located outside the cavity and connected to the side panel, the extension plate being provided with at least one of the fixing portions; wherein the third connection portion further includes the fixing portion provided on the extension plate, the first connection portion further includes the fixing portion provided on the fourth side panel, and the second connection portion further includes a portion of the fixing portion provided on the fourth side panel.

[0010] In one exemplary embodiment, the A-pillar includes an A-pillar tubular beam, and the third side panel is provided with a mounting notch for receiving the A-pillar tubular beam; and / or the B-pillar includes a B-pillar tubular beam, and the extension panel is provided with a mounting slot for receiving the B-pillar tubular beam. This embodiment facilitates secure connection of the A-pillar and B-pillar tubular beams to the joint connector via the mounting notch and slot. The limiting effect of the mounting notch and slot helps reduce swaying of the A-pillar and B-pillar tubular beams, thereby improving structural strength and reducing noise caused by swaying and collision.

[0011] In an exemplary embodiment, the sliding door upper guide rail groove assembly includes an upper guide rail groove upper mounting plate, an upper guide rail groove inner reinforcement plate and an upper guide rail groove outer reinforcement plate. The upper guide rail groove upper mounting plate, the upper guide rail groove inner reinforcement plate and the upper guide rail groove outer reinforcement plate are interconnected, and the joint connector is connected to the upper guide rail groove outer reinforcement plate through the first connecting portion.

[0012] In an exemplary embodiment, the upper guide rail groove outer reinforcement plate includes a planar portion and a raised portion protruding from the planar portion; the raised portion is connected to the joint connector through a portion of the first connecting portion toward the side wall of the joint connector; the planar portion extends from the side wall toward the joint connector to form an extended portion, and the extended portion is connected to the joint connector through another portion of the first connecting portion.

[0013] In one exemplary embodiment, the joint connector further comprises a reinforcement structure disposed within the cavity and connected to the cavity wall; the reinforcement structure comprises reinforcing ribs arranged in a horizontal and vertical pattern. This embodiment improves the mechanical strength of the joint connector without excessively increasing its weight, thereby preventing deformation of the joint connector under external forces.

[0014] In an exemplary embodiment, the B-pillar includes a B-pillar outer reinforcement plate, which is provided with a groove adapted to the joint connector, and the joint connector is snapped into the groove; and / or, the joint connector is covered by the A-pillar, the B-pillar and the sliding door upper guide rail groove assembly.

[0015] In a second aspect, an embodiment of the present application further provides a vehicle comprising the aforementioned body reinforcement structure of the sliding door.

[0016] The vehicle provided in the embodiments of the present application utilizes connectors to connect the A-pillars, B-pillars, and the upper guide rail assembly of the sliding door, improving the continuity between the A-pillars, B-pillars, and the vehicle's roof rails. Because the upper guide rail assembly of the sliding door does not excessively restrict the dimensions of the connection structure, a secure connection between the A-pillars, B-pillars, and the vehicle's roof is achieved. Furthermore, since the vehicle's roof rails no longer need to accommodate the connection structure of the A-pillars and B-pillars, a closed structure can be formed, enclosing the upper guide rail assembly of the sliding door within the roof rails. This significantly enhances the vehicle's structural strength and improves scores for side and offset impacts.

[0017] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present application. Other advantages of the present application can be realized and obtained by the solutions described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0019] Figure 1 This is a schematic structural diagram of a joint connector according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the partial structure of the vehicle body according to an embodiment of the present application;

[0021] Figure 3 This is another partial structural diagram of the vehicle body according to an embodiment of the present application;

[0022] Figure 4 This is another partial structural diagram of the vehicle body according to an embodiment of the present application;

[0023] Figure 5 This is another partial structural diagram of the vehicle body according to an embodiment of the present application;

[0024] Figure 6 This is a schematic diagram of the installation of the joint connector according to an embodiment of the present application.

[0025] Reference numerals:

[0026] 100-connector connector; 110-connecting plate; 120-side panel; 121-first side panel; 122-second side panel; 123-third side panel; 124-fourth side panel; 130-connecting hole; 140-extension plate; 150-installation notch; 160-reinforcement structure; 161-reinforcement rib; 200-fastener; 310-A-pillar tube beam; 320-A-pillar inner reinforcement plate; 330-A-pillar outer reinforcement plate; 410-B-pillar tube beam; 420-B-pillar inner reinforcement plate; 430-B-pillar outer reinforcement plate; 510-upper guide rail groove inner reinforcement plate; 520-upper guide rail groove outer reinforcement plate; 521-raised portion; 522-flat portion; 600-rivet hole. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any manner.

[0028] like Figure 1 As shown, an embodiment of the present application provides a body reinforcement structure for a sliding door, which includes an A-pillar, a B-pillar, an upper guide rail groove assembly for the sliding door, and a joint connector 100. The joint connector 100 has a first connecting portion, a second connecting portion, and a third connecting portion. The first connecting portion is connected to the upper guide rail groove assembly for the sliding door, the second connecting portion is connected to the A-pillar, and the third connecting portion is connected to the B-pillar.

[0029] Among them, such as Figures 2 to 5As shown, the A-pillar includes an inner A-pillar reinforcement plate 320, an outer A-pillar reinforcement plate 330, and an A-pillar beam 310. The inner A-pillar reinforcement plate 320 is fixedly connected to the outer A-pillar reinforcement plate 330. The A-pillar beam 310 is fixed between the inner A-pillar reinforcement plate 320 and the outer A-pillar reinforcement plate 330 and is connected to the joint connector 100.

[0030] The B-pillar includes an inner B-pillar reinforcement plate 420, an outer B-pillar reinforcement plate 430, and a B-pillar beam 410. The inner B-pillar reinforcement plate 420 is fixedly connected to the outer B-pillar reinforcement plate 430. The B-pillar beam 410 is fixed between the inner B-pillar reinforcement plate 420 and the outer B-pillar reinforcement plate 430 and is connected to the joint connector 100.

[0031] The upper guideway assembly of the sliding door includes an inner reinforcing plate 510, an outer reinforcing plate 520 and an upper mounting plate. The inner reinforcing plate 510 is fixedly connected to the outer reinforcing plate 520, and the outer reinforcing plate 520 is connected to the joint connector 100.

[0032] In existing technology, the A- and B-pillars are connected to the roof rails. Because the roof rails need to accommodate the upper guide rail assembly of the sliding door, the cross-sectional dimensions of the connection structure between the A- and B-pillars are limited. Consequently, the connection between the A- and B-pillars and the roof rails is weak. Furthermore, because the A- and B-pillars are directly connected to the roof rails, the roof rails cannot form a closed structure. Both of these factors affect the scores for side and offset impacts.

[0033] To enhance the structural strength of the vehicle body and improve side and offset impact scores, an embodiment of the present application provides a joint connector 100, through which the A-pillar and B-pillar are connected to the sliding door upper guide channel assembly. This allows the A-pillar and B-pillar to be securely fixed to the sliding door upper guide channel assembly of the roof, without excessive restrictions on the cross-sectional dimensions of the connection structure. Furthermore, since there is no need to accommodate the connection structure for the A-pillar and B-pillar, the vehicle's roof side beam can form a closed structure, enclosing the sliding door upper guide channel assembly within the roof side beam. This effectively improves side and offset impact scores.

[0034] The joint connector 100 is connected to the upper guide rail assembly of the sliding door via its first connecting portion, which is located at the rear of the joint connector 100. The joint connector 100 is connected to the A-pillar via its second connecting portion, which is located at the front of the joint connector 100. The joint connector 100 is connected to the B-pillar via its third connecting portion, which is located at the top and bottom of the joint connector 100.

[0035] Specifically, the joint connector 100 is connected to the upper guide channel outer reinforcement plate 520 of the sliding door upper guide channel assembly through its first connecting portion, thereby connecting to the sliding door upper guide channel assembly. The joint connector 100 is connected to the A-pillar tubular beam 310 of the A-pillar through its second connecting portion. The joint connector 100 is connected to the B-pillar tubular beam 410 of the B-pillar through its third connecting portion.

[0036] The joint connector 100 connects the A-pillar, B-pillar, and the sliding door upper rail assembly, improving the continuity between the A-pillar, B-pillar, and the vehicle's roof rail. Because the sliding door upper rail assembly doesn't significantly restrict the dimensions of the connection structure, it forms a secure connection between the A-pillar, B-pillar, and the vehicle's roof. Furthermore, since the vehicle's roof rail no longer needs to accommodate the A-pillar and B-pillar connection structure, it can form a closed structure, enclosing the sliding door upper rail assembly within the roof rail. This significantly enhances the vehicle's structural strength and improves its side and offset impact scores.

[0037] In an exemplary embodiment, at least one of the first connection portion, the second connection portion, and the third connection portion includes a fixing portion, wherein the fixing portion includes at least one connection hole 130 for mounting a fastener 200 .

[0038] The fasteners 200 include, but are not limited to, rivets, screws, pins, and welds.

[0039] The setting of the connecting hole 130 and the fastener 200 allows the joint connector 100 to be quickly connected to the A-pillar, B-pillar and the guide rail groove assembly on the sliding door through the fastener 200, thereby reducing the cost of connection and fixation, and facilitating disassembly and maintenance during subsequent use.

[0040] Of course, the fixing portion is not limited to the connection hole 130, and may also be other forms, such as welding points, pads and other structures, and fixed by welding or other means.

[0041] In an exemplary embodiment, Figure 1 As shown, the joint connector 100 includes a connecting plate 110 and a side panel 120. The side panel 120 is connected to the peripheral edge of the connecting plate 110 and encloses a cavity with the connecting plate 110. At least one of the connecting plate 110 and the side panel 120 is provided with a connecting hole 130.

[0042] The cavity is recessed toward the outside of the vehicle body, which is beneficial to reducing the weight of the joint connector 100 compared to a solid joint connector 100 , thereby contributing to energy saving of the vehicle.

[0043] The side panel 120 is arranged around the connecting plate 110, and at least one of the side panel 120 and the connecting plate 110 is provided with a connecting hole 130, which provides a basis for the rapid connection of the joint connector 100 with the A-pillar, B-pillar and the guide rail groove assembly on the sliding door, so that the connection between the joint connector 100 and the A-pillar, B-pillar and the guide rail groove assembly on the sliding door can be quickly achieved through the fastener 200.

[0044] In an exemplary embodiment, Figure 1 As shown, the side panel 120 includes a first side panel 121, a second side panel 122, a third side panel 123, and a fourth side panel 124, which are connected end to end. The first side panel 121 is located behind the third side panel 123, and the second side panel 122 is located below the fourth side panel 124. The first side panel 121 is provided with at least one connecting hole 130, the fourth side panel 124 is provided with multiple connecting holes 130, and the connecting panel 110 is provided with at least one connecting hole 130. The first connecting portion includes at least one connecting hole 130 provided on the first side panel 121; the second connecting portion includes at least one connecting hole 130 provided on the connecting panel 110; and the third connecting portion includes at least some of the connecting holes 130 provided on the fourth side panel 124.

[0045] For example, Figure 1 As shown, two connection holes 130 are provided on the first side panel 121; four connection holes 130 are provided on the fourth side panel 124; and one connection hole 130 is provided on the connection panel 110. Both connection holes 130 on the first side panel 121 are used to securely connect the joint connector 100 to the upper guide rail outer reinforcement plate 520 of the sliding door upper guide rail assembly via fasteners 200. Some of the connection holes 130 on the fourth side panel 124 are used to securely connect the joint connector 100 to the B-pillar outer reinforcement plate 430 via fasteners 200. The connection holes 130 on the connection panel 110 are used to securely connect the joint connector 100 to the A-pillar tubular beam 310 of the A-pillar via fasteners 200.

[0046] In an exemplary embodiment, Figure 1 As shown, the joint connector 100 further includes an extension plate 140 located outside the cavity and connected to the side panel 120. The extension plate 140 is provided with at least one connection hole 130. The third connection portion further includes a connection hole 130 provided on the extension plate 140.

[0047] In an exemplary embodiment, the first connection portion further includes a connection hole 130 provided on the fourth side plate 124 .

[0048] In an exemplary embodiment, the second connection portion further includes a partial connection hole 130 provided on the fourth side plate 124 .

[0049] The extension plate 140 is connected to the second side panel 122 of the side panel 120. The extension plate 140 is provided with a plurality of connection holes 130, at least one of which is used to connect to the B-pillar tube beam 410 of the B-pillar. The other connection holes 130 on the extension plate 140 can be used to connect to the B-pillar outer reinforcement plate 430 of the B-pillar.

[0050] For example, the fourth side panel 124 is provided with four connection holes 130. From the front to the rear of the vehicle body, the first connection hole 130 is used to securely connect the joint connector 100 to the A-pillar outer reinforcement plate 330 via a fastener 200. The second and third connection holes 130 are both used to securely connect the joint connector 100 to the B-pillar outer reinforcement plate 430 via a fastener 200. The fourth connection hole 130 is used to securely connect the joint connector 100 to the upper guide rail groove outer reinforcement plate 520 of the upper guide rail groove assembly of the sliding door via a fastener 200. This arrangement allows the A-pillar outer reinforcement plate 330, the B-pillar outer reinforcement plate 430, and the upper guide rail groove outer reinforcement plate 520 to cover the joint connector 100, thereby further strengthening the connection between the A-pillar, B-pillar, and the upper guide rail groove assembly of the sliding door and the joint connector 100.

[0051] The first connecting portion includes at least two connecting holes 130 provided on the first side panel 121 and one connecting hole 130 provided on the fourth side panel 124; the second connecting portion includes at least one connecting hole 130 provided on the connecting plate 110 and one connecting hole 130 provided on the fourth side panel 124; the third connecting portion includes at least two connecting holes 130 provided on the fourth side panel 124 and a connecting hole 130 provided on the extension panel 140.

[0052] In an exemplary embodiment, Figure 1 As shown, the third side plate 123 is provided with a mounting notch 150 for inserting the A-pillar tube beam 310 .

[0053] In an exemplary embodiment, the extension plate 140 is provided with a mounting groove for inserting the B-pillar tube beam 410 .

[0054] This embodiment facilitates the secure connection of the A-pillar tube beam 310 and the B-pillar tube beam 410 to the joint connector 100 through the mounting notch 150 and the mounting groove. Since the mounting notch 150 and the mounting groove have positioning and limiting functions, the A-pillar tube beam 310 and the B-pillar tube beam 410 can be quickly installed in place, and helps reduce the shaking of the A-pillar tube beam 310 and the B-pillar tube beam 410. While improving the structural strength, it helps reduce the noise caused by shaking and collision.

[0055] In an exemplary embodiment, Figure 1 As shown, the joint connector 100 further includes a reinforcing structure 160 disposed in the cavity and connected to the cavity wall, wherein the cavity wall includes the inner side surface of the connecting plate 110 and the side panel 120 .

[0056] Through this embodiment, without increasing the weight of the joint connector 100 too much, the reinforcement structure 160 in the cavity is beneficial to improving the mechanical strength of the joint connector 100 and preventing the joint connector 100 from being deformed under external force.

[0057] The reinforcement structure 160 may be in a honeycomb shape, a rectangular grid shape, a triangular grid shape, or the like.

[0058] In an exemplary embodiment, Figure 1 As shown, the reinforcement structure 160 includes reinforcement ribs 161 that are staggered in the horizontal and vertical directions.

[0059] The thickness of the reinforcing rib 161 ranges from 10 mm to 50 mm, such as 10 mm, 20 mm, 30 mm, 40 mm, 50 mm, etc. This ensures that the reinforcing rib 161 has a good reinforcing effect while also taking into account the weight and processing cost of the joint connector 100. Of course, the thickness range of the reinforcing rib 161 is not limited to the above range.

[0060] In one example, there are two transverse reinforcing ribs 161 and three longitudinal reinforcing ribs 161. The three longitudinal reinforcing ribs 161 all extend from the fourth side panel 124 to the second side panel 122, and the spacing between the three longitudinal reinforcing ribs 161 is substantially the same. The three longitudinal reinforcing ribs 161 from the first side panel 121 to the third side panel 123 are, in order, the first longitudinal reinforcing rib, the second longitudinal reinforcing rib, and the third longitudinal reinforcing rib. The transverse reinforcing ribs 161 from the fourth side panel 124 to the second side panel 122 are, in order, the first transverse reinforcing rib and the second transverse reinforcing rib. The first transverse reinforcing rib extends from the first side panel 121 to the third side panel 123, and the second transverse reinforcing rib extends from the first longitudinal reinforcing rib to the third side panel 123. The connecting plate 110 has a notched corner at the bottom of the first side panel 121, so the second transverse reinforcing rib does not extend to the first side panel 121.

[0061] The four connecting holes 130 on the fourth side panel 124 are alternately arranged with the three longitudinal reinforcing ribs 161, that is, a connecting hole 130 is provided in the middle of every two longitudinal reinforcing ribs 161, and a connecting hole 130 is provided on the outer sides of each of the two outermost longitudinal reinforcing ribs 161; the two connecting holes 130 on the first side panel 121 are respectively located on the upper and lower sides of the first transverse reinforcing rib.

[0062] The third side panel 123 is provided with a mounting notch 150 for receiving the A-pillar beam 310. This notch 150 is located between the first and second transverse reinforcement ribs. In one example, the sidewalls of the first and second transverse reinforcement ribs facing each other are flush with the sidewalls of the notch 150, thereby sandwiching the A-pillar beam 310 between the first and second transverse reinforcement ribs. This helps reduce the sway of the A-pillar beam 310, improving structural strength while also minimizing noise caused by sway and collision.

[0063] In an exemplary embodiment, Figure 6 As shown, the upper guide rail groove assembly of the sliding door includes an upper guide rail groove upper mounting plate, an upper guide rail groove inner reinforcement plate 510 and an upper guide rail groove outer reinforcement plate 520. The upper guide rail groove upper mounting plate, the upper guide rail groove inner reinforcement plate 510 and the upper guide rail groove outer reinforcement plate 520 are interconnected, and the joint connector 100 is connected to the upper guide rail groove outer reinforcement plate 520 through a first connecting portion.

[0064] In an exemplary embodiment, Figure 6 As shown, the upper guide rail groove outer reinforcement plate 520 includes a planar portion 522 and a raised portion 521 protruding from the planar portion 522; the raised portion 521 is connected to the joint connector 100 through a portion of the first connection portion toward the side wall of the joint connector 100; the planar portion 522 extends from the side wall toward the joint connector 100 to form an extended portion, and the extended portion is connected to the joint connector 100 through another portion of the first connection portion.

[0065] For example, the fastener 200 passes through the two connection holes 130 on the first side panel 121 and the corresponding holes on the side wall, connecting the side wall and the joint connector 100. The fastener 200 passes through the connection hole 130 on the fourth side panel 124 closest to the rear side of the vehicle body, the corresponding hole on the B-pillar outer reinforcement plate 430, and the corresponding hole on the extended portion, thereby sequentially connecting the joint connector 100, the B-pillar outer reinforcement plate 430, and the extended portion.

[0066] The fasteners 200 include, but are not limited to, rivets, screws, pins, and welds.

[0067] In an exemplary embodiment, the connection hole 130 is a rivet hole 600 .

[0068] This embodiment allows for quick disassembly compared to commonly used welding connections. Furthermore, riveted connections offer minimal deformation, low environmental requirements, excellent impact and vibration resistance, and fatigue resistance, while requiring minimal equipment.

[0069] In an exemplary embodiment, the joint connection 100 is a cast aluminum part.

[0070] This embodiment allows for the integral formation of the aluminum casting, significantly reducing the manufacturing complexity of the complex structure of the joint connector 100. Furthermore, the aluminum casting boasts high production efficiency and low cost, contributing to cost reductions. The aluminum casting also offers excellent shock absorption and wear resistance. Furthermore, its low weight and high mechanical strength contribute to extending the service life of the joint connector 100 and reducing vehicle weight and energy consumption.

[0071] In one example, the A-pillar inner reinforcement plate 320 is welded to the A-pillar outer reinforcement plate 330. The A-pillar tube beam 310 is riveted to the joint connector 100. The A-pillar inner reinforcement plate 320 is riveted to the A-pillar tube beam 310, and the A-pillar outer reinforcement plate 330 is riveted to the A-pillar tube beam 310.

[0072] In one example, the B-pillar inner reinforcement plate 420 is welded to the B-pillar outer reinforcement plate 430. The B-pillar tube beam 410 is riveted to the joint connector 100. The B-pillar inner reinforcement plate 420 is riveted to the B-pillar tube beam 410, and the B-pillar outer reinforcement plate 430 is riveted to the B-pillar tube beam 410.

[0073] In one example, the upper guide rail groove inner reinforcement plate 510 , the upper guide rail groove outer reinforcement plate 520 and the upper guide rail groove upper mounting plate are connected to each other by welding.

[0074] Compared to the commonly used welding connections in this field, riveted connections facilitate quick disassembly. They also offer minimal deformation, low environmental requirements, excellent impact and vibration resistance, and fatigue resistance, while requiring simple process equipment.

[0075] The A-pillar tube beam 310 and the B-pillar tube beam 410 effectively enhance the strength and impact resistance of the A-pillar and the B-pillar, and can effectively improve the scores of side collision and offset collision.

[0076] In an exemplary embodiment, Figure 2 As shown, the B-pillar outer reinforcement plate 430 is provided with a groove adapted to the joint connector 100 , and the joint connector 100 is buckled into the groove.

[0077] In an exemplary embodiment, the joint connector 100 is covered by the A-pillar, the B-pillar, and the sliding door upper track channel assembly.

[0078] The grooves not only serve as a positioning mechanism, facilitating quick alignment of the connector 100 with the B-pillar outer reinforcement plate 430, but also act as a limiter, facilitating securement of the connector 100, preventing it from shaking and reducing noise. The connector 100 is encased by the A-pillar, B-pillar, and upper guide rail assembly on the sliding door, enhancing connection strength and firmly connecting the A-pillar, B-pillar, and upper guide rail of the sliding door to the connector 100.

[0079] In an exemplary embodiment, Figure 3 As shown, the B-pillar tube beam 410 extends downward to the bottom of the vehicle body; the A-pillar tube beam 310 extends downward to a position lower than the bend of the A-pillar.

[0080] The A-pillar tube beam includes an inclined section and a vertical section, and the inclined section and the vertical section intersect at the bend of the A-pillar.

[0081] In one example, the width of the A-pillar beam 310 and the B-pillar beam 410 ranges from 20 mm to 50 mm, such as 20 mm, 30 mm, 40 mm, or 50 mm. The wall thickness of the A-pillar beam 310 and the B-pillar beam 410 ranges from 2 mm to 5 mm, such as 2 mm, 3 mm, 4 mm, or 5 mm. This ensures that the A-pillar beam 310 and the B-pillar beam 410 have a good reinforcement effect while also minimizing the weight and processing costs of the A-pillar beam 310 and the B-pillar beam 410. Of course, the width of the A-pillar beam 310 and the B-pillar beam 410 is not limited to the aforementioned range, nor is the wall thickness of the A-pillar beam 310 and the B-pillar beam 410 limited to the aforementioned range.

[0082] The A-pillar tube beam 310 and the B-pillar tube beam 410 effectively enhance the strength and impact resistance of the A-pillar and the B-pillar, and can effectively improve the scores of side collision and offset collision.

[0083] In an exemplary embodiment, Figure 3 As shown, the A-pillar tube beam 310 is provided with a plurality of rivet holes 600 along its length.

[0084] In an exemplary embodiment, the B-pillar tube beam 410 is provided with a plurality of rivet holes 600 along its length.

[0085] The A-pillar tube beam 310 is provided with a plurality of rivet holes 600 along its length, which facilitates the riveting and fixing of the A-pillar tube beam 310 to the A-pillar outer reinforcement plate 330 and the A-pillar inner reinforcement plate 320 .

[0086] The B-pillar tube beam 410 is provided with a plurality of rivet holes 600 along its length, which facilitates the riveting and fixing of the B-pillar tube beam 410 to the B-pillar outer reinforcement plate 430 and the B-pillar inner reinforcement plate 420 .

[0087] Riveted connections facilitate quick disassembly compared to welding, a commonly used method in this field. They also offer minimal deformation, low environmental requirements, excellent impact and vibration resistance, and fatigue resistance, while requiring minimal equipment.

[0088] The embodiment of the present application also provides a vehicle (not shown in the figure), including the aforementioned sliding door body reinforcement structure. The vehicle provided by the embodiment of the present application realizes the connection between the A-pillar, the B-pillar and the sliding door upper guide groove assembly through the joint connector 100, thereby improving the continuity between the A-pillar, the B-pillar and the vehicle's roof side beam. Since the sliding door upper guide groove assembly does not excessively restrict the size of the connection structure, it can form a firm connection structure between the A-pillar, the B-pillar and the vehicle body roof; at the same time, since the vehicle's roof side beam no longer needs to accommodate the connection structure of the A-pillar and the B-pillar, it can form a closed structure so that the sliding door upper guide groove assembly is enclosed in the roof side beam; thereby greatly improving the structural strength of the vehicle body and improving the scores of side impact and offset impact.

[0089] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", ""mouth"-shaped structure", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0090] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" may refer to a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0091] Although the embodiments disclosed herein are as described above, the contents described herein are merely embodiments for facilitating understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art may make any modifications and variations in the form and details of the embodiments without departing from the spirit and scope of the present invention. However, the scope of patent protection of the present invention shall still be defined by the appended claims.

Claims

1. A body reinforcement structure for a sliding door, characterized in that: The invention comprises an A-pillar, a B-pillar, a guide rail groove assembly on a sliding door, and a joint connector; the joint connector comprises a first connecting portion, a second connecting portion, and a third connecting portion, the first connecting portion being connected to the guide rail groove assembly on the sliding door, the second connecting portion being connected to the A-pillar, and the third connecting portion being connected to the B-pillar; The joint connector comprises: Connecting plates; and a side panel connected to the peripheral edge of the connecting plate and enclosing a cavity together with the connecting plate; The side panel is provided with at least a portion of the first connecting portion and at least a portion of the third connecting portion, and the connecting plate is provided with at least a portion of the second connecting portion; The side panel includes a first side panel, a second side panel, a third side panel, and a fourth side panel connected end to end in sequence; the first side panel is located behind the third side panel, and the second side panel is located below the fourth side panel; the first side panel is provided with at least one fixing portion, the fourth side panel is provided with a plurality of such fixing portions, and the connecting panel is provided with at least one such fixing portion; The first connection portion at least includes the fixing portion provided on the first side plate; the second connection portion at least includes the fixing portion provided on the connecting plate; and the third connection portion at least includes a portion of the fixing portion provided on the fourth side plate.

2. The vehicle body reinforcement structure for a sliding door according to claim 1, characterized in that: The joint connector also includes: an extension plate, located outside the cavity and connected to the side panel, the extension plate being provided with at least one fixing portion; The third connection portion further includes the fixing portion provided on the extension plate, the first connection portion further includes the fixing portion provided on the fourth side plate, and the second connection portion further includes part of the fixing portion provided on the fourth side plate.

3. The vehicle body reinforcement structure for a sliding door according to claim 2, characterized in that: The A-pillar includes an A-pillar tube beam, and the third side panel is provided with a mounting notch for inserting the A-pillar tube beam; and / or, The B-pillar includes a B-pillar tube beam, and the extension plate is provided with a mounting groove for inserting the B-pillar tube beam.

4. The vehicle body reinforcement structure for a sliding door according to any one of claims 1 to 3, characterized in that: The upper guide rail groove assembly of the sliding door includes an upper guide rail groove upper mounting plate, an upper guide rail groove inner reinforcement plate and an upper guide rail groove outer reinforcement plate. The upper guide rail groove upper mounting plate, the upper guide rail groove inner reinforcement plate and the upper guide rail groove outer reinforcement plate are connected to each other, and the joint connector is connected to the upper guide rail groove outer reinforcement plate through the first connecting portion.

5. The vehicle body reinforcement structure for a sliding door according to claim 4, characterized in that: The upper guide rail groove outer reinforcement plate includes a flat portion and a raised portion protruding from the flat portion; The side wall of the protrusion facing the joint connector is connected to the joint connector through a portion of the first connecting portion; The planar portion extends from the side wall toward the joint connector to form an extended portion, and the extended portion is connected to the joint connector through another portion of the first connecting portion.

6. The vehicle body reinforcement structure for a sliding door according to any one of claims 1 to 3, characterized in that: The joint connector also includes: a reinforcement structure, disposed in the cavity and connected to a cavity wall of the cavity; The reinforcement structure includes reinforcement ribs that are staggered horizontally and vertically.

7. The vehicle body reinforcement structure for a sliding door according to any one of claims 1 to 3, characterized in that: The B-pillar includes a B-pillar outer reinforcement plate, the B-pillar outer reinforcement plate is provided with a groove adapted to the joint connector, and the joint connector is buckled into the groove; and / or, The joint connector is covered by the A-pillar, the B-pillar and the sliding door upper guide rail groove assembly.

8. A vehicle, characterized in that: A vehicle body reinforcement structure comprising a sliding door according to any one of claims 1 to 7.

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