A vehicle body connecting member, a vehicle body structure, and a vehicle

Abstract

The embodiment of the application provides a vehicle body connecting piece, a vehicle body structure and a vehicle. The vehicle body connecting piece is arranged at the intersection of a rocker structure, a rear cross beam and a rear longitudinal beam. The vehicle body connecting piece is integrally formed. The vehicle body connecting piece comprises a first connecting part, a second connecting part and a third connecting part. The first connecting part is suitable for fixed connection with the rocker structure. The second connecting part is suitable for fixed connection with the rear cross beam. The third connecting part is suitable for fixed connection with the rear longitudinal beam. The vehicle body connecting piece of the embodiment of the application realizes the connection function of the rocker structure, the rear cross beam and the rear longitudinal beam through one component, and solves the problem of a large number of existing mounting bracket parts.

Description

Technical Field

[0001] This application relates to the field of vehicle body technology, and in particular to a vehicle body connector, vehicle body structure and vehicle. Background Technology

[0002] At the rear of the vehicle, where the longitudinal and transverse beams of the rear floor and the sill structure intersect, a mounting bracket is typically installed. This mounting bracket is formed by welding together multiple steel structural components, resulting in a relatively large number of parts. Utility Model Content

[0003] This application provides a vehicle body connector, a vehicle body structure, and a vehicle, aiming to improve the problem of the large number of components in existing mounting brackets.

[0004] To address the aforementioned issues, one embodiment of this application provides a vehicle body connector arranged at the intersection of a sill structure, a rear crossbeam, and a rear longitudinal beam. The vehicle body connector is integrally formed and includes a first connecting portion, a second connecting portion, and a third connecting portion. The first connecting portion is adapted to be fixedly connected to the sill structure, the second connecting portion is adapted to be fixedly connected to the rear crossbeam, and the third connecting portion is adapted to be fixedly connected to the rear longitudinal beam.

[0005] The vehicle body connector of this embodiment is integrally formed and includes a first connecting portion, a second connecting portion, and a third connecting portion. The first connecting portion is adapted to be fixedly connected to the sill structure, the second connecting portion is adapted to be fixedly connected to the rear crossbeam, and the third connecting portion is adapted to be fixedly connected to the rear longitudinal beam. In this way, the connection function of the sill structure, the rear crossbeam, and the rear longitudinal beam is achieved through a single component, solving the problem of the large number of parts in existing mounting brackets. Furthermore, it can improve the strength, stiffness, and modal properties of the joint between the sill structure, the rear crossbeam, and the rear longitudinal beam.

[0006] Optionally, the vehicle body connector includes a front side panel, a rear side panel, an inner side panel, and an outer side panel. The inner side panel and the outer side panel are spaced apart from each other in the left-right direction of the vehicle body. The front side panel is connected between the front side of the inner side panel and the front side of the outer side panel. The rear side panel is connected between the rear side of the inner side panel and the rear side of the outer side panel. The first connecting part is located on the front side of the front side plate, the second connecting part is located on the side of the inner side plate near the rear crossbeam, and the third connecting part is located on the rear side of the rear side plate.

[0007] The body connecting parts are equipped with front side panels, rear side panels, inner side panels and outer side panels, which can ensure the strength, rigidity and modal performance of the body connecting parts.

[0008] Optionally, the inner side plate is arranged parallel to the outer side plate; The front panel gradually slopes backward from top to bottom; The rear side panel gradually slopes forward from top to bottom.

[0009] In this way, the body connecting parts are roughly inverted cone-shaped, wider at the top and narrower at the bottom, which can reduce the size of the body connecting parts and reduce the chassis space occupied by the body connecting parts.

[0010] Optionally, the vehicle body connector further includes a top support plate, which is connected between the inner side plate and the outer side plate along the left-right direction of the vehicle body. The front side of the top support plate is connected to the front side plate, and the rear side of the top support plate is connected to the bottom side of the rear side plate. The front side plate protrudes downward from the top support plate, and the portion of the front side plate protruding from the top support plate forms the front support plate; The inner side plate protrudes downward from the top support plate, and the portion of the inner side plate protruding from the top support plate forms the inner support plate; The outer side plate protrudes downward from the top support plate, and the portion of the outer side plate protruding from the top support plate forms an outer support plate; The front support plate, inner support plate, outer support plate and top support plate form a fourth connecting part and enclose a receiving cavity. The receiving cavity is adapted to accommodate one end of the rear trailing arm of the rear suspension device. The fourth connecting part is adapted to be rotatably connected to one end of the rear trailing arm.

[0011] Thus, a fourth connecting portion is formed by the front support plate, inner support plate, outer support plate, and top support plate, used to install the rear trailing arm of the rear suspension device. The front side plate protrudes downward from the top support plate, and the portion of the front side plate protruding from the top support plate forms the front support plate; the inner side plate protrudes downward from the top support plate, and the portion of the inner side plate protruding from the top support plate forms the inner support plate; the outer side plate protrudes downward from the top support plate, and the portion of the outer side plate protruding from the top support plate forms the outer support plate. This fourth connecting portion is shaped like a "basket," enhancing the strength and rigidity of the trailing arm mounting point. The "basket"-shaped fourth connecting portion can meet the mounting hard point requirements of the rear suspension, can install the rotation shaft of the trailing arm, and allows the trailing arm to rotate within a preset angle range (e.g., 0-120 degrees).

[0012] The spacing between the inner and outer support plates is determined by the constraints of the rotating bushing of the rear trailing arm. Typically, the spacing between the inner and outer support plates is 50mm-100mm. The top support plate and the front support plate are positioned as close as possible to the rotation axis of the rear trailing arm while ensuring the safety clearance requirements of the movement envelope of the rear trailing arm, thereby maximizing the strength and rigidity of the vehicle body connecting components.

[0013] Optionally, the front side plate, rear side plate, inner side plate, outer side plate and top support plate are arranged to form an upward-opening cavity structure.

[0014] In this way, while meeting the strength, rigidity and other performance requirements of the body connecting parts, the cavity structure can reduce the weight of the body connecting parts, which is more conducive to the lightweighting of the vehicle.

[0015] Optionally, the vehicle body connector further includes a fourth connecting portion, which is lower than the first connecting portion, the second connecting portion, and the third connecting portion; The fourth connecting portion is provided with a receiving cavity, which is adapted to receive one end of the rear trailing arm of the rear suspension device, and the fourth connecting portion is adapted to be rotatably connected to one end of the rear trailing arm.

[0016] In this way, by setting the fourth connection part, the rear trailing arm of the rear suspension device can be installed on the body connecting piece, and the mounting seat of the body connecting piece and the trailing arm are combined into one, further reducing the number of body parts.

[0017] Optionally, the threshold structure includes an inner threshold, and the first connecting portion includes a first connecting plate, which is adapted to be fixedly connected to the inner threshold.

[0018] In this way, the connection between the vehicle body connector and the inner sill can be achieved through the first connecting plate.

[0019] Optionally, the sill structure further includes an outer sill connected to the side of the inner sill away from the rear crossbeam; The first connecting portion further includes a second connecting plate, the first connecting plate extending in a horizontal direction, the second connecting plate extending in a vertical direction, the second connecting plate protruding downward from the first connecting plate, and the second connecting plate being adapted to be fixedly connected to the inner sill and the outer sill; The inner threshold and the outer threshold are formed and fixed separately, or the inner threshold and the outer threshold are formed integrally.

[0020] In this way, the second connecting plate enables the connection between the body connecting parts and both the inner and outer sills. The first connecting part connects both the inner and outer sills, resulting in a strong and reliable connection between the body connecting parts and the sill structure.

[0021] Optionally, the inner threshold includes an inner threshold body and a vertical plate. The first connecting plate is adapted to be fixedly connected to the bottom of the inner threshold body. The vertical plate is connected to the side of the inner threshold body near the outer threshold and protrudes downward from the first connecting plate. The vertical plate is attached to the second connecting plate.

[0022] In this way, by attaching the vertical plate of the inner sill to the second connecting plate, the contact area between the inner sill and the second connecting plate can be increased, thereby increasing the connection strength.

[0023] Optionally, the second connecting part includes a third connecting plate, which is adapted to be fixedly connected to the bottom of the rear crossbeam; The vehicle body connector also includes a fourth connecting plate, which is connected to the rear side of the third connecting plate. The fourth connecting plate protrudes upward from the third connecting plate and is attached and fixed to the rear surface of the rear crossbeam. The third connecting part includes a fifth connecting plate, which is adapted to be fixedly connected to the bottom of the rear longitudinal beam; The third connecting part also includes a sixth connecting plate, which protrudes upward from the fifth connecting plate and is attached and fixed to the surface of the rear longitudinal beam near the rear transverse beam.

[0024] In this way, the connection between the body connecting parts and the rear crossbeam can be achieved through the third connecting plate.

[0025] In this way, by attaching and fixing the fourth connecting plate to the rear surface of the rear crossbeam, the contact area between the rear crossbeam and the fourth connecting plate can be increased, thereby increasing the connection strength.

[0026] In this way, the fifth connecting plate enables the connection between the body connecting parts and the rear longitudinal beam.

[0027] In this way, by attaching and fixing the sixth connecting plate to the surface of the rear longitudinal beam near the rear cross beam, the contact area between the rear longitudinal beam and the sixth connecting plate can be increased, thereby increasing the connection strength.

[0028] On the other hand, this application provides a vehicle body structure, including a sill structure, a rear crossbeam, a rear longitudinal beam, and a vehicle body connector as described in the above embodiments. The first connecting part is fixedly connected to the sill structure, the second connecting part is fixedly connected to the rear crossbeam, and the third connecting part is fixedly connected to the rear longitudinal beam.

[0029] The vehicle body structure of this application embodiment achieves the connection function of the sill structure, rear crossbeam, and rear longitudinal beam through a single component, solving the problem of the large number of parts in existing mounting brackets. Furthermore, it can improve the strength, stiffness, and modal properties of the joints between the sill structure, rear crossbeam, and rear longitudinal beam.

[0030] In another aspect, embodiments of this application provide a vehicle, including the body connector or body structure described in the above embodiments.

[0031] The vehicle of this application embodiment has all the advantages of the body connector of the above embodiments. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a vehicle body structure provided in an embodiment of the present invention; Figure 2 This is an exploded view of the vehicle body structure provided in one embodiment of the present invention; Figure 3 yes Figure 1 A diagram showing the removal of the rear trailing arm; Figure 4 This is a schematic diagram of a vehicle body connector provided in one embodiment of the present utility model; Figure 5 yes Figure 4 Another perspective view; Figure 6 yes Figure 4 Another perspective view.

[0033] The reference numerals in the accompanying drawings are as follows: 10. Body connecting parts; 20. Sill structure; 201. Inner sill; 2011. Inner sill body; 2012. Vertical plate; 202. Outer sill; 30. Rear crossbeam; 40. Rear longitudinal beam; 50. Rear trailing arm; 501. Rotary shaft; 5011. Bolt; 5012. Nut; 61. First fastener; 62. Second fastener; 63. Third fastener; 64. Fourth fastener; 65. Fifth fastener; 1. First connecting part; 11. First connecting plate; 12. Second connecting plate; 2. Second connecting part; 21. Third connecting plate; 22. Fourth connecting plate; 3. Third connecting part; 31. Fifth connecting plate; 32. Sixth connecting plate; 4. Front side plate; 41. Front support plate; 5. Rear side plate; 6. Inner side plate; 61. Inner support plate; 7. Outer side plate; 71. Outer support plate; 8. Top support plate; 9. Fourth connecting part; 91. Receiving cavity; 92. Protruding rib; 101. Cavity structure; 102. Support platform. Detailed Implementation

[0034] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0035] In this article, front, back, top, bottom, left, and right refer to the orientation of the vehicle when it is normally placed on a horizontal plane. See details below. Figure 1 The location. Figure 1 The perspective is a vertically flipped perspective. That is, Figure 1 In the middle, the top indicates the direction of the roof, and the bottom indicates the direction of the underside of the vehicle.

[0036] See Figures 1 to 6This utility model provides a vehicle body structure, including a sill structure 20, a rear crossbeam 30, a rear longitudinal beam 40, and a vehicle body connector 10. The vehicle body connector 10 is arranged at the intersection of the sill structure 20, the rear crossbeam 30, and the rear longitudinal beam 40. The vehicle body connector 10 includes a first connecting part 1, a second connecting part 2, and a third connecting part 3. The first connecting part 1 is fixedly connected to the sill structure 20, the second connecting part 2 is fixedly connected to the rear crossbeam 30, and the third connecting part 3 is fixedly connected to the rear longitudinal beam 40.

[0037] The vehicle body connector 10 and vehicle body structure of this application embodiment are integrally formed. The vehicle body connector 10 realizes the connection function of the sill structure 20, the rear crossbeam 30 and the rear longitudinal beam 40 through a single component, solving the problem of the large number of parts in existing mounting brackets. Furthermore, it can improve the strength, stiffness and modal properties of the joint between the sill structure 20, the rear crossbeam 30 and the rear longitudinal beam 40.

[0038] If the sill structure 20 is a left-side sill structure 20, then the rear longitudinal beam 40 corresponds to the left-side rear longitudinal beam 40, and the body connector 10 connects to the left end of the rear cross beam 30. That is, the body connector 10 of this application can be used to connect the left-side sill structure 20, the left-side rear longitudinal beam 40, and the left end of the rear cross beam 30. If the sill structure 20 is a right-side sill structure 20, then the rear longitudinal beam 40 corresponds to the right-side rear longitudinal beam 40, and the body connector 10 connects to the right end of the rear cross beam 30. That is, the body connector 10 of this application can be used to connect the right-side sill structure 20, the right-side rear longitudinal beam 40, and the right end of the rear cross beam 30.

[0039] In one embodiment, see Figure 1 and Figure 3-6 The vehicle body connector 10 includes a front side panel 4, a rear side panel 5, an inner side panel 6, and an outer side panel 7. The inner side panel 6 and the outer side panel 7 are spaced apart from each other in the left-right direction of the vehicle body. The front side panel 4 is connected between the front side of the inner side panel 6 and the front side of the outer side panel 7. The rear side panel 5 is connected between the rear side of the inner side panel 6 and the rear side of the outer side panel 7. The first connecting part 1 is provided on the front side of the front side panel 4, the second connecting part 2 is provided on the side of the inner side panel 6 near the rear crossbeam 30, and the third connecting part 3 is provided on the rear side of the rear side panel 5.

[0040] The body connecting parts are equipped with a front side plate 4, a rear side plate 5, an inner side plate 6, and an outer side plate 7, which can ensure the strength, rigidity, and modal performance of the body connecting parts 10.

[0041] In one embodiment, see Figure 3 and Figure 4 The inner side plate 6 is arranged parallel to the outer side plate 7; the front side plate 4 gradually tilts backward from top to bottom; the rear side plate 5 gradually tilts forward from top to bottom.

[0042] In this way, the body connector 10 is roughly inverted cone-shaped, wider at the top and narrower at the bottom, which can reduce the size of the body connector 10 and reduce the chassis space occupied by the body connector 10.

[0043] In one embodiment, see Figure 1 , Figure 5 and Figure 6 The vehicle body connector 10 also includes a top support plate 8, which connects the inner side plate 6 and the outer side plate 7 along the left-right direction of the vehicle body. The front side of the top support plate 8 is connected to the front side plate 4, and the rear side of the top support plate 8 is connected to the bottom side of the rear side plate 5. The front side plate 4 protrudes downward from the top support plate 8, and the portion of the front side plate 4 protruding from the top support plate 8 forms a front support plate 41. The inner side plate 6 protrudes downward from the top support plate 8, and the portion of the inner side plate 6 protruding from the top support plate 7 forms a front support plate 41. A portion of the top support plate 8 is formed as an inner support plate 61; the outer side plate 7 protrudes downward from the top support plate 8, and the portion of the outer side plate 7 protruding from the top support plate 8 is formed as an outer support plate 71; the front support plate 41, the inner support plate 61, the outer support plate 71, and the top support plate 8 constitute a fourth connecting portion 9 and enclose a receiving cavity 91, the receiving cavity 91 being adapted to receive one end of the rear trailing arm 50 of the rear suspension device, and the fourth connecting portion 9 being adapted to be rotatably connected to one end of the rear trailing arm 50.

[0044] In one embodiment, see Figure 1 and Figure 2 The rear trailing arm 50 is rotatably connected to the fourth connecting part 9 via a rotating shaft 501, which is perpendicular to the inner support plate 61 and the outer support plate 71. Specifically, the inner support plate 61 and the outer support plate 71 are provided with through holes for the rotating shaft 501 to pass through. The rotating shaft 501 can be... Figure 1 The bolt 5011 and nut 5012 are used in the structure. The bolt 5011 passes through the through holes of the inner support plate 61 and the outer support plate 71, and the nut 5012 is threaded onto one end of the bolt 5011 to realize the function of the rotating shaft 501. Of course, in other embodiments, the rotating shaft 501 can also be a pin or a rivet, etc.

[0045] Thus, the fourth connecting part 9, composed of the front support plate 41, inner support plate 61, outer support plate 71, and top support plate 8, is used to install the rear trailing arm 50 of the rear suspension device. The front side plate 4 protrudes downward from the top support plate 8, and the portion of the front side plate 4 protruding from the top support plate 8 forms the front support plate 41; the inner side plate 6 protrudes downward from the top support plate 8, and the portion of the inner side plate 6 protruding from the top support plate 8 forms the inner support plate 61; the outer side plate 7 protrudes downward from the top support plate 8, and the portion of the outer side plate 7 protruding from the top support plate 8 forms the outer support plate 71. Thus, the fourth connecting part 9 is "basket-shaped," strengthening the strength and rigidity of the mounting point of the rear trailing arm 50. The "basket-shaped" fourth connecting part 9 can meet the mounting hard point requirements of the rear suspension, can install the rotation shaft 501 of the rear trailing arm 50, and allows the rear trailing arm to rotate within a preset angle range (e.g., 0-120 degrees).

[0046] The spacing between the inner support plate 61 and the outer support plate 71 is determined based on the constraint of the rotating bushing of the rear trailing arm 50. Typically, the spacing between the inner support plate 61 and the outer support plate 71 is 50mm-100mm. The top support plate 8 and the front support plate 41 are positioned as close as possible to the rotation axis of the rear trailing arm 50 (the axis of the rotating shaft 501) while ensuring the safety clearance requirements of the motion envelope of the rear trailing arm 50, thereby maximizing the strength and rigidity of the vehicle body connecting parts 10.

[0047] In one embodiment, see Figure 5 The front side plate 4, rear side plate 5, inner side plate 6, outer side plate 7 and top support plate 8 enclose and form a downward-opening cavity structure 101.

[0048] In this way, while meeting the strength, rigidity and other performance requirements of the body connector 10, the cavity structure 101 can reduce the weight of the body connector 10, which is more conducive to the lightweighting of the vehicle.

[0049] In one embodiment, the vehicle body connector further includes a fourth connecting portion 9, which is lower than the first connecting portion 1, the second connecting portion 2, and the third connecting portion 3. The fourth connecting portion 9 is provided with a receiving cavity 91, which is adapted to receive one end of the rear trailing arm 50 of the rear suspension device. The fourth connecting portion 9 is adapted to be rotatably connected to one end of the rear trailing arm 50. Thus, by providing the fourth connecting portion 9, the vehicle body connector 10 can mount the rear trailing arm 50 of the rear suspension device, and the mounting base of the vehicle body connector 10 and the rear trailing arm 50 are combined into one, further reducing the number of vehicle body parts.

[0050] In one embodiment, see Figure 4The opening edge of the receiving cavity 91 is provided with a raised rib 92, that is, the edges of the inner support plate 61 and the outer support plate 71 are provided with raised ribs 92. The raised ribs 92 can enhance the strength and rigidity of the fourth connecting part 9. The width of the raised rib 92 can be, for example, 3-5 mm. The raised rib 92 can also extend to the left and right edges of the rear side plate 5 to further increase the strength and rigidity of the body connecting member 10. The raised rib 92 can also extend to the left and right edges of the front side plate 4 to further increase the strength and rigidity of the body connecting member 10.

[0051] In one embodiment, see Figure 1 and Figure 2 The threshold structure 20 includes an inner threshold 201, and the first connecting part 1 includes a first connecting plate 11, which is adapted to be fixedly connected to the inner threshold 201.

[0052] In this way, the connection between the body connecting piece 10 and the inner sill 201 can be achieved through the first connecting plate 11.

[0053] In one embodiment, see Figure 1 and Figure 2 The threshold structure 20 also includes an outer threshold 202, which is connected to the side of the inner threshold 201 away from the rear crossbeam 30.

[0054] The outer sill 202 and the inner sill 201 can be integrally formed, for example, by integral casting. Alternatively, the outer sill 202 and the inner sill 201 can be made of extruded aluminum, meaning they are formed separately and then welded together. Extruded aluminum parts are less expensive than cast parts.

[0055] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The first connecting part 1 further includes a second connecting plate 12. The first connecting plate 11 extends in a horizontal direction, and the second connecting plate 12 extends in a vertical direction. The second connecting plate 12 protrudes downward from the first connecting plate 11. The second connecting plate 12 is adapted to be fixedly connected to the inner threshold 201 and the outer threshold 202.

[0056] In this way, the second connecting plate 12 enables the connection between the body connecting piece 10 and the inner sill 201 and the outer sill 202. The first connecting part 1 connects both the inner sill 201 and the outer sill 202, resulting in a strong connection between the body connecting piece 10 and the sill structure 20 and high connection reliability.

[0057] In one embodiment, see Figure 4 and Figure 6The body connector 10 is also provided with a support platform 72, which is located on the side surface of the outer side panel 7 away from the inner side panel 6. The front side of the support platform 72 is connected to the second connecting plate 12 to improve the strength and rigidity of the second connecting plate 12.

[0058] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The inner threshold 201 includes an inner threshold body 2011 and a vertical plate 2012. The first connecting plate 11 is adapted to be fixedly connected to the bottom of the inner threshold body 2011. The vertical plate 2012 is connected to the side of the inner threshold body 2011 near the outer threshold 202 and protrudes downward from the first connecting plate 11. The vertical plate 2012 is attached to the second connecting plate 12.

[0059] In this way, by attaching the vertical plate 2012 of the inner sill 201 to the second connecting plate 12, the contact area between the inner sill 201 and the second connecting plate 12 can be increased, thereby increasing the connection strength.

[0060] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The second connecting plate 12, the vertical plate 2012 and the outer threshold 202 are fixedly connected by the first fastener 61; structural adhesive can also be provided between the second connecting plate 12 and the vertical plate 2012.

[0061] In this way, the second connecting plate 12, the vertical plate 2012, and the outer sill 202 are connected by the first fastener 61, which simplifies the connection and avoids the problem of numerous weld points caused by welding in the prior art. Structural adhesive is applied between the second connecting plate 12 and the vertical plate 2012, further enhancing the connection strength between the body connecting part 10 and the inner sill 201. The first fastener 61 can be, for example, a flow drill screw. That is, the second connecting plate 12, the vertical plate 2012, and the outer sill 202 are connected by FSD (Flow Drill Screw). FSD softens the connecting parts through high-speed rotation and finally tightens the self-tapping screw, forming a threaded connection between the second connecting plate 12, the vertical plate 2012, and the outer sill 202.

[0062] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The first connecting plate 11 and the inner sill 201 are fixedly connected by the second fastener 62; structural adhesive may also be provided between the first connecting plate 11 and the inner sill 201.

[0063] In this way, the first connecting plate 11 and the inner sill 201 are connected by the second fastener 62, which is simple and avoids the problem of a large number of weld points caused by welding in the prior art. Structural adhesive is applied between the first connecting plate 11 and the inner sill 201 to further improve the connection strength between the body connecting part 10 and the inner sill 201. The second fastener 62 can be, for example, a screw. A screw mounting seat is provided on the inner sill 201, and a thread or steel sleeve is embedded in the inner hole of the screw mounting seat. The first connecting plate 11 has a through hole, and the screw passes through the through hole and is threaded to the thread or steel sleeve to fix the first connecting plate 11 and the inner sill 201.

[0064] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The second connecting part 2 includes a third connecting plate 21, which is adapted to be fixedly connected to the bottom of the rear crossbeam 30.

[0065] In this way, the connection between the body connecting piece 10 and the rear crossbeam 30 can be achieved through the third connecting plate 21.

[0066] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The third connecting plate 21 is fixedly connected to the rear crossbeam 30 by a third fastener 63; structural adhesive may also be provided between the third connecting plate 21 and the rear crossbeam 30.

[0067] In this way, the third connecting plate 21 is connected to the rear crossbeam 30 by the third fastener 63, which is simple and avoids the problem of a large number of weld points caused by welding in the prior art. Structural adhesive is applied between the third connecting plate 21 and the rear crossbeam 30 to further improve the connection strength between the body connecting part 10 and the rear crossbeam 30. The third fastener 63 can be, for example, a screw. A screw mounting seat is provided on the rear crossbeam 30, and a thread or steel sleeve is embedded in the inner hole of the screw mounting seat. The third connecting plate 21 has a through hole, and the screw passes through the through hole and is threaded to the thread or steel sleeve to fix the third connecting plate 21 and the rear crossbeam 30.

[0068] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The vehicle body connector 10 also includes a fourth connecting plate 22, which is connected to the rear side of the third connecting plate 21. The fourth connecting plate 22 protrudes upward from the third connecting plate 21 and is attached and fixed to the rear surface of the rear crossbeam 30.

[0069] In this way, by attaching and fixing the fourth connecting plate 22 to the rear surface of the rear crossbeam 30, the contact area between the rear crossbeam 30 and the fourth connecting plate 22 can be increased, thereby increasing the connection strength. Structural adhesive can be applied to the rear surface of the fourth connecting plate 22 and the rear crossbeam 30, further enhancing the connection strength between the body connecting part 10 and the rear crossbeam 30.

[0070] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The third connecting part 3 includes a fifth connecting plate 31, which is adapted to be fixedly connected to the bottom of the rear longitudinal beam 40.

[0071] In this way, the connection between the body connecting piece 10 and the rear longitudinal beam 40 can be achieved through the fifth connecting plate 31.

[0072] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The fifth connecting plate 31 is fixedly connected to the rear longitudinal beam 40 by the fourth fastener 64; structural adhesive can also be provided between the fifth connecting plate 31 and the rear longitudinal beam 40.

[0073] In this way, the fifth connecting plate 31 is connected to the rear longitudinal beam 40 by the fourth fastener 64, which is simple and avoids the problem of a large number of weld points caused by welding in the prior art. Structural adhesive is applied between the fifth connecting plate 31 and the rear longitudinal beam 40 to further improve the connection strength between the body connecting part 10 and the rear longitudinal beam 40. The fourth fastener 64 can be, for example, a screw. A screw mounting seat is provided on the rear longitudinal beam 40, and a thread or steel sleeve is embedded in the inner hole of the screw mounting seat. The fifth connecting plate 31 has a through hole, and the screw passes through the through hole and is threaded to the thread or steel sleeve to fix the fifth connecting plate 31 and the rear longitudinal beam 40.

[0074] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The third connecting part 3 further includes a sixth connecting plate 32, which protrudes upward from the fifth connecting plate 31, and is attached and fixed to the side surface of the rear longitudinal beam 40 near the rear transverse beam 30.

[0075] In this way, by attaching and fixing the sixth connecting plate 32 to the side surface of the rear longitudinal beam 40 near the rear cross beam 30, the contact area between the rear longitudinal beam 40 and the sixth connecting plate 32 can be increased, thereby increasing the connection strength.

[0076] In one embodiment, see Figure 1 , Figure 2 and Figure 4The sixth connecting plate 32 is fixedly connected to the rear longitudinal beam 40 by the fifth fastener 65; structural adhesive can also be provided between the sixth connecting plate 32 and the rear longitudinal beam 40.

[0077] In this way, the sixth connecting plate 32 is connected to the rear longitudinal beam 40 via the fifth fastener 65, simplifying the connection and avoiding the problem of numerous weld points caused by welding in existing technologies. Structural adhesive is applied between the sixth connecting plate 32 and the rear longitudinal beam 40, further enhancing the connection strength between the body connecting part 10 and the rear longitudinal beam 40. The fifth fastener 65 can be, for example, a flow drill screw. That is, the sixth connecting plate 32 and the rear longitudinal beam 40 are connected via a self-tapping screw (FSD). The FSD softens the connecting parts through high-speed rotation and finally tightens the self-tapping screw, forming a threaded connection between the sixth connecting plate 32 and the rear longitudinal beam 40.

[0078] In this way, the body connecting piece 10 is connected to the sill structure 20, the rear crossbeam 30, and the rear longitudinal beam 40 with fasteners, which facilitates disassembly, repair, or replacement.

[0079] In one embodiment, see Figure 3 and Figure 4 The heights of the first connecting part 1, the second connecting part 2, and the third connecting part 3 increase sequentially. That is, the second connecting part 2 is located below the first connecting part 1, and the third connecting part 3 is located below the second connecting part 2.

[0080] In this way, the progressively increasing heights of the first connecting part 1, the second connecting part 2, and the third connecting part 3 can accommodate the spatial arrangement requirements of the sill structure 20, the rear crossbeam 30, and the rear longitudinal beam 40. This allows the first connecting part 1, the second connecting part 2, and the third connecting part 3 to minimize their size while meeting the connection requirements, which is beneficial for reducing the volume and weight of the body connecting part 10.

[0081] See Figure 4 Specifically, the heights of the first connecting plate 11, the third connecting plate 21, and the fifth connecting plate 31 increase sequentially. The first connecting plate 11, the third connecting plate 21, and the fifth connecting plate 31 can be arranged in parallel.

[0082] Thus, the first connecting part 1, the second connecting part 2, and the third connecting part 3 are arranged in a triangular configuration. Specifically, the first connecting plate 11, the third connecting plate 21, and the fifth connecting plate 31 are arranged in a triangular configuration. By utilizing the principle of triangle stability, the first connecting part 1, the second connecting part 2, and the third connecting part 3 are designed to improve the stability of the vehicle body connecting component 10.

[0083] In one embodiment, the body connector 10 is integrally cast; the body connector 10 is an aluminum alloy casting or a magnesium alloy casting.

[0084] The body connector 10 is a single-piece casting. Utilizing the manufacturing characteristics of castings, multiple existing parts can be combined into one, eliminating weld points between parts. The body connector 10 is made of aluminum alloy or magnesium alloy castings. Compared to traditional steel parts, aluminum alloy or magnesium alloy castings have a lower density, reducing weight by 30%-40% compared to steel mounting brackets of the same shape and volume while ensuring the function and performance of the body connector.

[0085] The thickness of castings can be selected from 3 to 10 mm, while the thickness of traditional stamped steel sheets can only be selected from 1 to 2 mm. In this way, by utilizing the manufacturing characteristics of castings, the performance range of the body connecting parts 10 can be expanded and extended by optimizing the local thickness and / or opening weight-reducing holes.

[0086] In addition, this application provides a vehicle including the body connector 10 of the above embodiments or the body structure of the above embodiments.

[0087] The vehicle of this application embodiment has all the advantages of the body connector 10 of the above embodiments.

[0088] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle body connector, characterized in that, The body connector is integrally formed and is located at the intersection of the sill structure, the rear crossbeam and the rear longitudinal beam. The body connector includes a first connecting part, a second connecting part and a third connecting part. The first connecting part is adapted to be fixedly connected to the sill structure, the second connecting part is adapted to be fixedly connected to the rear crossbeam and the third connecting part is adapted to be fixedly connected to the rear longitudinal beam.

2. The vehicle body connector according to claim 1, characterized in that, The vehicle body connector includes a front side panel, a rear side panel, an inner side panel, and an outer side panel. The inner side panel and the outer side panel are spaced apart from each other along the left and right direction of the vehicle body. The front side panel is connected between the front side of the inner side panel and the front side of the outer side panel. The rear side panel is connected between the rear side of the inner side panel and the rear side of the outer side panel. The first connecting part is located on the front side of the front side plate, the second connecting part is located on the side of the inner side plate near the rear crossbeam, and the third connecting part is located on the rear side of the rear side plate.

3. The vehicle body connector according to claim 2, characterized in that, The inner side plate is arranged parallel to the outer side plate; The front panel gradually slopes backward from top to bottom; The rear side panel gradually slopes forward from top to bottom.

4. The vehicle body connector according to claim 2, characterized in that, The vehicle body connector also includes a top support plate, which is connected between the inner side plate and the outer side plate along the left-right direction of the vehicle body. The front side of the top support plate is connected to the front side plate, and the rear side of the top support plate is connected to the bottom side of the rear side plate. The front side plate protrudes downward from the top support plate, and the portion of the front side plate protruding from the top support plate forms the front support plate; The inner side plate protrudes downward from the top support plate, and the portion of the inner side plate protruding from the top support plate forms the inner support plate; The outer side plate protrudes downward from the top support plate, and the portion of the outer side plate protruding from the top support plate forms an outer support plate; The front support plate, inner support plate, outer support plate and top support plate form a fourth connecting part and enclose a receiving cavity. The receiving cavity is adapted to accommodate one end of the rear trailing arm of the rear suspension device. The fourth connecting part is adapted to be rotatably connected to one end of the rear trailing arm.

5. The vehicle body connector according to claim 4, characterized in that, The front side plate, rear side plate, inner side plate, outer side plate, and top support plate together form an upward-opening cavity structure.

6. The vehicle body connector according to claim 1, characterized in that, The vehicle body connector further includes a fourth connecting portion, which is lower than the first connecting portion, the second connecting portion, and the third connecting portion; The fourth connecting portion is provided with a receiving cavity, which is adapted to receive one end of the rear trailing arm of the rear suspension device, and the fourth connecting portion is adapted to be rotatably connected to one end of the rear trailing arm.

7. The vehicle body connector according to claim 1, characterized in that, The threshold structure includes an inner threshold, and the first connecting part includes a first connecting plate, which is adapted to be fixedly connected to the inner threshold.

8. The vehicle body connector according to claim 7, characterized in that, The threshold structure also includes an outer threshold, which is connected to the side of the inner threshold away from the rear crossbeam. The first connecting portion further includes a second connecting plate, the first connecting plate extending in a horizontal direction, the second connecting plate extending in a vertical direction, the second connecting plate protruding downward from the first connecting plate, and the second connecting plate being adapted to be fixedly connected to the inner sill and the outer sill; The inner threshold and the outer threshold are formed and fixed separately, or the inner threshold and the outer threshold are formed integrally.

9. The vehicle body connector according to claim 8, characterized in that, The inner threshold includes an inner threshold body and a vertical plate. The first connecting plate is adapted to be fixedly connected to the bottom of the inner threshold body. The vertical plate is connected to the side of the inner threshold body near the outer threshold and protrudes downward from the first connecting plate. The vertical plate is attached to the second connecting plate.

10. The vehicle body connector according to claim 1, characterized in that, The second connecting part includes a third connecting plate, which is adapted to be fixedly connected to the bottom of the rear crossbeam; The vehicle body connector also includes a fourth connecting plate, which is connected to the rear side of the third connecting plate. The fourth connecting plate protrudes upward from the third connecting plate and is attached and fixed to the rear surface of the rear crossbeam. The third connecting part includes a fifth connecting plate, which is adapted to be fixedly connected to the bottom of the rear longitudinal beam; The third connecting part also includes a sixth connecting plate, which protrudes upward from the fifth connecting plate and is attached and fixed to the surface of the rear longitudinal beam near the rear transverse beam.

11. A vehicle body structure, characterized in that, The device includes a sill structure, a rear crossbeam, a rear longitudinal beam, and a vehicle body connector as described in any one of claims 1-10, wherein the first connecting part is fixedly connected to the sill structure, the second connecting part is fixedly connected to the rear crossbeam, and the third connecting part is fixedly connected to the rear longitudinal beam.

12. A vehicle, characterized in that, Includes the vehicle body connector as described in any one of claims 1-10 or the vehicle body structure as described in claim 11.

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