Upper section structure of side-opening back door of SUV (sports utility vehicle), production method, back door assembly and vehicle

Abstract

The invention discloses an upper section structure of a side-opening back door of an SUV (sports utility vehicle), which is a closed annular structure formed by connecting a first upper section sub-assembly, a second upper section sub-assembly, a back door upper section body and a back door window frame middle reinforcing plate, the back door upper section body and the back door window frame middle reinforcing plate are located between the first upper section sub-assembly and the second upper section sub-assembly and connected with the first upper section sub-assembly and the second upper section sub-assembly, and the back door upper section body and the back door window frame middle reinforcing plate are oppositely arranged. The upper section structure of the side-opening back door of the SUV is of a closed annular structure, and the overall strength and rigidity of a product are improved. The invention further discloses a production method of the SUV side-opening back door upper section structure, a back door assembly and a vehicle.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and in particular relates to an upper structure of a side-opening rear door of an SUV automobile, a production method, a rear door assembly and a vehicle. Background Art

[0002] In the existing SUV side-opening tailgate, the tailgate is generally designed as an integral inner and outer panel structure. The traditional tailgate is stamped out by a stamping die. Due to the limitation of the stamping process, the cross-section required for the product cavity is relatively large, which cannot meet the requirements of the rear view.

[0003] At present, the existing SUV side-opening back door has the following shortcomings:

[0004] 1. The side-opening tailgate of SUV is an integral structure with complex molding process and heavy weight, which cannot meet the requirements of lightweighting;

[0005] 2. The structural strength and rigidity of the integral tailgate are relatively poor, and the structural stability needs to be improved.

[0006] It is desirable to provide an improved upper structure of a side-opening rear door of an SUV vehicle, in particular with respect to improving structural stability and lightness. Summary of the invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an upper section structure of a side-opening rear door of an SUV vehicle, the purpose of which is to improve the structural strength and rigidity.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: an upper section structure of a side-opening tailgate of an SUV car, wherein the upper section structure of the side-opening tailgate of the SUV car is a closed ring structure formed by connecting a first upper section sub-assembly, a second upper section sub-assembly, a tailgate upper section body and a reinforcing plate in a tailgate window frame, the tailgate upper section body and the reinforcing plate in the tailgate window frame are located between the first upper section sub-assembly and the second upper section sub-assembly and are connected to the first upper section sub-assembly and the second upper section sub-assembly, and the tailgate upper section body and the reinforcing plate in the tailgate window frame are arranged relatively.

[0009] The first upper section sub-assembly comprises a first upper section outer panel and a first upper section inner panel of the back door which are connected to each other. The first upper section outer panel of the back door is formed by stamping, and the first upper section inner panel of the back door is formed by drawing in one step.

[0010] The material thickness of the first upper outer panel of the back door and the first upper inner panel of the back door is 0.8 to 1.2 mm.

[0011] The second upper section sub-assembly comprises a second upper section outer panel and a second upper section inner panel of the back door which are connected to each other. The second upper section outer panel of the back door is formed by stamping, and the second upper section inner panel of the back door is formed by drawing in one step.

[0012] The material thickness of the second upper outer panel of the back door and the second upper inner panel of the back door is 0.8 to 1.2 mm.

[0013] The upper section of the rear door body is formed by a rolling process.

[0014] The reinforcing plate in the rear door and window frame is formed by stamping.

[0015] The present invention also provides a method for producing the upper structure of the SUV side-opening rear door, comprising the steps of:

[0016] S1. Prepare a first upper subassembly, a second upper subassembly, a rear door upper body, and a rear door window frame reinforcement plate;

[0017] S2. Welding the first upper subassembly, the second upper subassembly, the upper tailgate body and the reinforcing plate in the tailgate window frame to form a closed ring structure, thereby obtaining the upper tailgate structure of the SUV side-opening tailgate.

[0018] The present invention also provides a rear door assembly, comprising the upper section structure of the SUV side-opening rear door.

[0019] The present invention also provides a vehicle, comprising the rear door assembly.

[0020] The upper section structure of the SUV side-opening rear door of the present invention is a closed ring structure, which improves the overall strength and rigidity of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view schematic diagram of an embodiment of an upper structure of a side-opening rear door of an SUV;

[0022] Figure 2 It is a schematic diagram of a reverse embodiment of an upper structure of a side-opening rear door of an SUV;

[0023] Figure 3 is a schematic cross-sectional view of the first upper sub-assembly of the back door;

[0024] Figure 4 is a schematic cross-sectional view of the second upper sub-assembly of the back door;

[0025] Figure 5 It is a cross-sectional schematic diagram of the upper section of the back door;

[0026] Figure 6 It is a schematic diagram of the reinforcement plate in the rear door and window frame;

[0027] Figure 7 It is a structural schematic diagram of the back door hinge mounting plate structure;

[0028] Figure 8 It is a schematic diagram of the structure of the vehicle body taillight mounting plate;

[0029] The marks in the above figures are: 10, the first upper inner panel of the back door; 101, the first left flange; 102, the second left flange; 103, the first left connecting plate; 104, the second left connecting plate; 105, the third left connecting plate; 106, the fourth left connecting plate; 107, the fifth left connecting plate; 20, the upper body of the back door; 201, the first upper connecting plate; 202, the second upper connecting plate; 203, the third upper connecting plate; 204, the fourth upper connecting plate; 205, the fifth upper connecting plate; 206, the upper flange; 30, the first upper inner panel of the back door; 101, the first upper connecting plate; 102, the second upper connecting plate; 103, the third upper connecting plate; 104, the fourth upper connecting plate; 105, the fifth upper connecting plate; 206, the upper flange; 30, the first upper inner panel of the back door; Second upper section inner plate; 301, second right section flange; 302, first right section flange; 303, first right section connecting plate; 304, second right section connecting plate; 305, third right section connecting plate; 306, fourth right section connecting plate; 307, fifth right section connecting plate; 40, rear door window frame reinforcement plate; 50, rear door second upper section outer plate; 60, rear door first upper section outer plate; 70, vehicle body taillight mounting plate; 80, reinforcement boss; 90, hinge mounting plate; 100, reinforcement structure; 110, hinge reinforcement plate; 120, D-pillar lap plate; 130, connecting plate. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower" and similar expressions used in this article are for illustrative purposes only.

[0032] It should be noted that, in the following embodiments, the "first", "second", "third", "fourth" and "fifth" do not represent an absolute distinction in structure and / or function, nor do they represent a sequence of execution, but are merely for the convenience of description.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] Embodiment 1

[0035] like Figures 1 to 6 As shown, an embodiment of the present invention provides an upper section structure of a side-opening tailgate of an SUV automobile, which is a closed ring structure formed by connecting a first upper section sub-assembly, a second upper section sub-assembly, a tailgate upper section body 20 and a reinforcing plate 40 in a tailgate window frame. The tailgate upper section body 20 and the reinforcing plate 40 in the tailgate window frame are located between the first upper section sub-assembly and the second upper section sub-assembly and are connected to the first upper section sub-assembly and the second upper section sub-assembly, and the tailgate upper section body 20 and the reinforcing plate 40 in the tailgate window frame are arranged relatively.

[0036] Specifically, if Figures 1 to 6 As shown, the upper body 20 of the back door is located above the reinforcing plate 40 in the back door window frame, and the two ends of the upper body 20 of the back door in the length direction are respectively fixedly connected to the upper ends of the first upper sub-assembly and the second upper sub-assembly, and the two ends of the reinforcing plate 40 in the back door window frame in the length direction are respectively fixedly connected to the lower ends of the first upper sub-assembly and the second upper sub-assembly. The first upper sub-assembly includes a first upper outer panel 60 of the back door and a first upper inner panel 10 of the back door connected, and the second upper sub-assembly includes a second upper outer panel 50 of the back door and a second upper inner panel 30 of the back door connected.

[0037] As a preferred example, Figures 3 to 5 As shown, the first upper subassembly is a hollow structure, the first upper subassembly forms a first cavity inside, and the first cavity extends along the length direction of the first upper subassembly; the second upper subassembly is a hollow structure, the second upper subassembly forms a second cavity inside, and the second cavity extends along the length direction of the second upper subassembly; the upper body 20 of the back door is a hollow structure, the upper body 20 forms a third cavity inside, and the third cavity extends along the length direction of the upper body 20 of the back door; the first upper subassembly and the second upper subassembly close the openings of the upper body 20 of the back door. A rear windshield is installed on the upper structure of the side-opening back door of an SUV car, and the first upper subassembly, the second upper subassembly, the upper body 20 of the back door, and the reinforcing plate 40 in the back door window frame are respectively located at the four sides of the rear windshield. The upper structure of the side-opening back door of an SUV car with this structure can meet the rear vision requirements, and at the same time, the structure is stable and lightweight.

[0038] Preferably, the first upper outer panel 60 of the back door is stamped, and the thickness of the first upper outer panel 60 of the back door is 0.8-1.2 mm, and it is made of DC01 steel plate material. For example, the thickness of the first upper outer panel 60 of the back door can be 0.9 mm or 1.0 mm. A convex rib is provided on one side of the first upper outer panel 60 of the back door, which serves as a mark for gluing the rear windshield and provides a main positioning hole for installing the rear windshield.

[0039] Preferably, the first upper inner panel 10 of the back door is formed by one-step drawing, and the material thickness of the first upper inner panel 10 of the back door is 0.8-1.2 mm, and it is made of DC04 steel plate material. For example, the material thickness of the first upper inner panel 10 of the back door can be 0.9 mm or 1.0 mm. The first upper inner panel 10 of the back door with such a structure is strong in structure and has good rigidity.

[0040] Preferably, the second upper outer panel 50 of the back door is stamped, and the thickness of the second upper outer panel 50 of the back door is 0.8-1.2 mm, and it is made of DC01 steel plate material. For example, the thickness of the second upper outer panel 50 of the back door can be 0.9 mm or 1.0 mm. A convex rib is provided on one side of the second upper outer panel 50 of the back door as a mark for gluing the rear windshield, and a secondary positioning hole for installing the rear windshield is provided.

[0041] Preferably, the second upper inner panel 30 of the back door is formed by one-step drawing, and the thickness of the second upper inner panel 30 of the back door is 0.8-1.2 mm, and it is made of DC04 steel plate material. For example, the thickness of the second upper inner panel 30 of the back door can be 0.9 mm or 1.0 mm. The second upper inner panel 30 of the back door with such a structure is strong and rigid.

[0042] Preferably, the upper section of the back door body 20 is formed by a rolling process. The thickness of the upper section of the back door body 20 is 0.8-1.2 mm, and it is made of DC01 steel plate material. For example, the thickness of the upper section of the back door body 20 can be 0.9 mm or 1.0 mm. The upper section of the back door body 20 of this structure is strong and rigid.

[0043] Preferably, the reinforcing plate 40 in the back door and window frame is stamped. The material thickness of the reinforcing plate 40 in the back door and window frame is 0.8-1.2 mm, and it is made of HC340LA high-strength plate material. For example, the material thickness of the reinforcing plate 40 in the back door and window frame can be 0.9 mm or 1.0 mm. The reinforcing plate 40 in the back door and window frame of this structure has a strong structure and good rigidity.

[0044] The reinforcement plate 40 in the rear door and window frame also provides installation points for the wiper motor and the door guard plate. Five projection nuts are projected on the reinforcement plate 40 in the rear door and window frame, three of which are used to fix the wiper motor, and the other two are used to fix the door guard plate of the rear door assembly.

[0045] like Figure 3 As shown, the first upper outer panel 60 of the back door and the first upper inner panel 10 of the back door are hemmed by a pressing mold to ensure the relative positions of the two parts, thereby forming a first hollow body closed on three sides, improving the rigidity of the product, and obtaining the first upper sub-assembly of the back door.

[0046] like Figure 3 As shown, the first upper inner panel 10 of the back door includes a first left section connecting plate 103, a second left section connecting plate 104, a third left section connecting plate 105, a fourth left section connecting plate 106 and a fifth left section connecting plate 107 which are fixedly connected in sequence. One end of the first left section connecting plate 103 is fixedly connected to the second left section flange 102 with a circular arc transition connection therebetween. The other end of the first left section connecting plate 103 is fixedly connected to the second left section connecting plate 104 with a circular arc transition connection therebetween. One end of the fifth left section connecting plate 107 is fixedly connected to the first left section flange 101 The fifth left section connecting plate 107 is fixedly connected with the fourth left section connecting plate 106 and there is an arc transition connection between the two. One end of the first upper section outer panel 60 of the tailgate is clamped between the first left section connecting plate 103 and the second left section flange 102. The first left section connecting plate 103 is parallel to the second left section flange 102. The other end of the first upper section outer panel 60 of the tailgate is clamped between the fifth left section connecting plate 107 and the first left section flange 101. The fifth left section connecting plate 107 is parallel to the first left section flange 101. The first upper outer panel 60 of the back door and the third left connecting panel 105 are arranged opposite to each other, and the second left connecting panel 104 and the fourth left connecting panel 106 are arranged opposite to each other. The first hollow cavity is surrounded by the first upper outer panel 60 of the back door and the third left connecting panel 105, the second left connecting panel 104 and the fourth left connecting panel 106, so as to form an integral closed cavity.

[0047] like Figure 4 As shown, the second upper outer panel 50 of the back door and the second upper inner panel 30 of the back door are hemmed by a pressing mold to ensure the relative positions of the two parts, thereby forming a second hollow cavity closed on three sides, improving the rigidity of the product, and obtaining the second upper sub-assembly of the back door.

[0048] like Figure 4As shown, the second upper inner panel 30 of the back door includes a first right section connecting plate 303, a second right section connecting plate 304, a third right section connecting plate 305, a fourth right section connecting plate 306 and a fifth right section connecting plate 307 which are fixedly connected in sequence. One end of the first right section connecting plate 303 is fixedly connected to the second right section flange 301 and a circular arc transition connection is formed between the two. The other end of the first right section connecting plate 303 is fixedly connected to the second right section connecting plate 304 and a circular arc transition connection is formed between the two. One end of the fifth right section connecting plate 307 is fixedly connected to the first right section flange 302 The fifth right section connecting plate 307 is fixedly connected with the fourth right section connecting plate 306 and there is an arc transition connection between the two. One end of the second upper section outer panel 50 of the tailgate is clamped between the first right section connecting plate 303 and the second right section flange 301. The first right section connecting plate 303 is parallel to the second right section flange 301. The other end of the second upper section outer panel 50 of the tailgate is clamped between the fifth right section connecting plate 307 and the first right section flange 302. The fifth right section connecting plate 307 is parallel to the first right section flange 302. The second upper outer panel 50 of the back door and the third right connecting panel 305 are arranged relative to each other, and the second right connecting panel 304 and the fourth right connecting panel 306 are arranged relative to each other. The second hollow cavity is formed by the second upper outer panel 50 of the back door and the third right connecting panel 305, the second right connecting panel 304 and the fourth right connecting panel 306, so as to form an integral closed cavity.

[0049] like Figure 5 As shown, the tailgate upper section body 20 includes a first upper section connecting plate 201, a second upper section connecting plate 202, a third upper section connecting plate 203, a fourth upper section connecting plate 204 and a fifth upper section connecting plate 205 which are fixedly connected in sequence, one end of the first upper section connecting plate 201 is fixedly connected to the upper section flange 206 with a circular arc transition connection therebetween, the other end of the first upper section connecting plate 201 is fixedly connected to the second upper section connecting plate 202 with a circular arc transition connection therebetween, one end of the fifth upper section connecting plate 205 is clamped between the first upper section connecting plate 201 and the upper section flange 206, the other end of the fifth upper section connecting plate 205 is fixedly connected to the fourth upper section connecting plate 204 with a circular arc transition connection therebetween, and the first upper section connecting plate 201 is parallel to the upper section flange 206. The fifth upper connecting plate 205 and the third upper connecting plate 203 are arranged relative to each other, and the second upper connecting plate 202 and the fourth upper connecting plate 204 are arranged relative to each other. The third hollow cavity is surrounded by the second upper connecting plate 202, the third upper connecting plate 203, the fourth upper connecting plate 204 and the fifth upper connecting plate 205, forming an integral closed cavity.

[0050] Preferably, the first upper subassembly of the back door, the second upper subassembly of the back door, the upper body of the back door 20 and the reinforcing plate 40 in the back door window frame are connected into a closed annular structure by CO2 welding.

[0051] The upper section structure of the SUV side-opening back door structure mentioned above can reduce the overall weight by about 8% and the cost by about 40 yuan compared with the traditional integral back door structure, and the molding process is simple. The welding process is convenient, the performance is improved, and it is more conducive to the lightweight of the whole vehicle, easy to implement, has strong practicality and good application prospects, and can be widely used.

[0052] The embodiment of the present invention further provides a method for producing an upper structure of a side-opening rear door of an SUV, comprising the following steps:

[0053] S1, preparing a first upper sub-assembly, a second upper sub-assembly, a rear door upper body 20 and a rear door window frame reinforcement plate 40;

[0054] S2. The first upper subassembly, the second upper subassembly, the upper tailgate body 20 and the reinforcing plate 40 in the tailgate window frame are welded together to form a closed ring structure, thereby obtaining the upper tailgate structure of the SUV side-opening tailgate.

[0055] In the above step S1 , the first upper outer panel 60 of the back door is made by a stamping process, and the first upper inner panel 10 of the back door is made by a one-step drawing process. When preparing the first upper section sub-assembly, firstly, the first upper section outer panel 60 of the back door and the first upper section inner panel 10 of the back door are positioned. Two first positioning holes are set on the first upper section outer panel 60 of the back door. The diameters of the two first positioning holes are 5mm and 10mm respectively. The first upper section outer panel 60 of the back door is positioned with the first upper section inner panel 10 of the back door through the two first positioning holes. Then, hemming glue is applied at 6mm from the edge of the first upper section outer panel 60 of the back door. The hemming is pressed and hemmed by a hemming mold to form a first left section flange 101 and a second left section flange 102 on the first upper section inner panel 10 of the back door. The first left section flange 101 and the second left section flange 102 are fitted with the first upper section outer panel 60 of the back door to form a closed first cavity. Then, the first upper section outer panel 60 of the back door and the first left section flange 101 and the second left section flange 102 are welded, and two points are convexly welded, so that the structure of the formed first upper section sub-assembly is more stable and reliable.

[0056] In the above step S1 , the second upper outer panel 50 of the back door is made by a stamping process, and the second upper inner panel 30 of the back door is made by a one-step drawing process. When preparing the second upper section sub-assembly, firstly, the second upper section outer panel 50 of the back door and the second upper section inner panel 30 of the back door are positioned. Two second positioning holes are set on the second upper section outer panel 50 of the back door. The diameters of the two second positioning holes are 5mm and 10mm respectively. The second upper section outer panel 50 of the back door and the second upper section inner panel 30 of the back door are positioned through the two second positioning holes. Then, hemming glue is applied at 6mm from the edge of the second upper section outer panel 50 of the back door. The hemming is pressed and hemmed by a hemming mold to form a first right section flange 302 and a second right section flange 301 on the second upper section inner panel 30 of the back door. The first right section flange 302 and the second right section flange 301 are fitted with the second upper section outer panel 50 of the back door to form a closed second cavity. Then, the second upper section outer panel 50 of the back door and the first right section flange 302 and the second right section flange 301 are welded, and two points are convexly welded, so that the structure of the formed second upper section sub-assembly is more stable and reliable.

[0057] In the above step S1, the upper section of the rear door body 20 is formed by a rolling process. After forming, the two ends of the upper section of the rear door body 20 are processed by a sawing process so that the shapes of the two ends of the upper section of the rear door body 20 meet the requirements. Finally, a drilling fixture is used to drill drain holes on the upper section of the rear door body 20. There are 3 drain holes with a diameter of 8.4 mm, which is convenient for over-coating.

[0058] In the above step S1, the reinforcement plate 40 in the rear door and window frame is made by a stamping process. In order to save costs, five M6 projection nuts are projection-welded on the reinforcement plate 40 in the rear door and window frame for installing the wiper motor and the door guard plate.

[0059] In the above step S2, the first upper section sub-assembly, the second upper section sub-assembly, the upper section body 20 of the back door and the reinforcing plate 40 in the back door window frame are positioned by a welding fixture, and then the first upper section sub-assembly, the second upper section sub-assembly, the upper section body 20 of the back door and the reinforcing plate 40 in the back door window frame are welded together by carbon dioxide gas shielded welding, and the back side is welded after the front side is welded. In this way, the upper section of the back door forms a closed ring, which improves the overall strength and rigidity of the product.

[0060] After all welding is completed, the welds must be polished smooth and the weld height must be guaranteed to be within 0.3 to 0.5 mm. This ensures both the strength of the welding and the beauty of the weld.

[0061] The embodiment of the present invention also provides a rear door assembly, including the upper section structure of the SUV rear door with side opening. The specific structure of the upper section structure of the SUV rear door with side opening can be referred to Figures 1 to 6Since the tailgate assembly of the embodiment of the present invention includes the upper section structure of the SUV side-opening tailgate in the above embodiment, it has all the advantages of the upper section structure of the SUV side-opening tailgate.

[0062] The embodiment of the present invention also provides a vehicle, including the tailgate assembly of the above structure. Since the vehicle of the embodiment of the present invention includes the SUV side-opening tailgate upper structure and the tailgate assembly of the above embodiment, it has all the advantages of the SUV side-opening tailgate upper structure and the tailgate assembly.

[0063] Embodiment 2

[0064] In SUV models, for side-opening car tailgate assemblies, the requirements for the stiffness of the hinge mounting points and the droop of the tailgate assembly are more stringent. Usually, the hinge of the tailgate assembly is directly installed on the taillight mounting plate of the vehicle. After a period of use, deformation occurs near the hinge, affecting the normal closing and opening of the car tailgate, and the tailgate as a whole droops, reducing its service life.

[0065] Therefore, in the embodiment of the present invention, the vehicle further comprises a rear door hinge mounting plate structure, such as Figure 7 As shown, the tailgate hinge mounting plate structure includes a hinge mounting plate 90 and a reinforcing structure 100. The reinforcing structure 100 is arranged on the hinge mounting plate 90. The reinforcing structure 100 can enhance the structural strength and rigidity of the tailgate hinge, and effectively prevent the hinge mounting from deforming during use. The reinforcing structure 100 can also effectively prevent the tailgate from sinking, thereby increasing the service life of the tailgate hinge and the tailgate.

[0066] The reinforcement structure 100 includes a hinge reinforcement plate 110 , which is disposed on one side of the hinge mounting plate 90 , and can enhance the structural strength and rigidity of the hinge mounting plate 90 , and effectively prevent the hinge mounting plate 90 from being deformed.

[0067] The reinforcement structure 100 further includes a lap plate 120, which is disposed on one side of the hinge reinforcement plate 110. The lap plate 120 is connected to the vehicle body, thereby connecting the tailgate hinge installation structure provided by the embodiment of the present invention to the vehicle body, which can further strengthen the structural strength of the tailgate hinge and effectively support the tailgate hinge. The lap plate 110 and the vehicle body are connected by welding, thereby firmly fixing the lap plate 110 to the vehicle body, further strengthening the structural strength of the tailgate hinge and effectively supporting the tailgate hinge.

[0068] Figure 8 Schematic diagram of the structure of the vehicle body taillight mounting plate in an embodiment of the present invention.

[0069] A body taillight mounting plate 70 is provided on the vehicle body, a hinge mounting plate 90 is provided on the body taillight mounting plate 70, the body taillight mounting plate 70 is located on one side of the water flow channel of the vehicle side, a connecting plate 130 is provided between the hinge mounting plate 90 and the body taillight mounting plate 70, the connecting plate 130 is located on one side of the hinge reinforcement plate 110 and the lap plate 120, a reinforcing boss 80 is provided on the body taillight mounting plate 70, the connecting plate 130 is connected to the reinforcing boss 80, so as to fix the hinge mounting plate 90 on the body taillight mounting plate 70, enhance the structural strength and rigidity of the hinge mounting plate 90, effectively prevent the hinge mounting plate 90 from being deformed during use, effectively prevent the back door assembly from sinking, thereby improving the service life of the back door hinge and the back door assembly. The reinforcing boss 80 is thickened, which can further enhance the structural strength and rigidity of the hinge mounting plate 90, and effectively prevent the hinge mounting plate 90 from being deformed during use.

[0070] Two reinforcing bosses 80 are provided on the vehicle body taillight mounting plate 70, which provide installation positions for the two tailgate hinge mounting plate structures respectively. The tailgate hinge is arranged on the hinge mounting plate 90, which is convenient for installing the two tailgate hinges and can share the load of the tailgate assembly together, thereby effectively supporting the tailgate assembly, extending the service life of the tailgate assembly, avoiding deformation near the tailgate hinge, avoiding affecting the normal closing and opening of the tailgate assembly, and avoiding sagging of the entire tailgate assembly.

[0071] The hinge mounting plate 90, the hinge reinforcement plate 110, the lap plate 120 and the connecting plate 130 are integrally formed. The hinge mounting plate 90, the hinge reinforcement plate 110, the lap plate 120 and the connecting plate 130 are integrally formed by casting, which is beneficial to improve the overall strength and rigidity of the tailgate hinge mounting plate provided in the embodiment of the present invention, can enhance the structural strength and rigidity of the tailgate hinge mounting position, avoid deformation of the hinge mounting position, effectively prevent the tailgate from sinking, and improve the service life of the tailgate hinge.

[0072] Functions and Effects of the Embodiments

[0073] The rear door hinge mounting plate structure provided in the embodiment of the present invention includes a hinge mounting plate 90 and a reinforcement structure 100. The reinforcement structure 100 is arranged on the hinge mounting plate 90. The reinforcement structure 100 can enhance the structural strength and rigidity of the rear door hinge, and effectively prevent the hinge mounting position from deforming during use. The reinforcement structure 100 can also effectively prevent the rear door assembly from sinking, thereby increasing the service life of the rear door hinge and the rear door assembly. The rear door hinge mounting plate structure provided in the embodiment of the present invention can enhance the structural strength and rigidity of the rear door hinge mounting position, avoid deformation of the hinge mounting position, effectively prevent the rear door assembly from sinking, and increase the service life of the rear door hinge.

[0074] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. The upper structure of the side-opening back door of an SUV vehicle is characterized by: The upper section structure of the side-opening tailgate of the SUV car is a closed ring structure formed by connecting the first upper section sub-assembly, the second upper section sub-assembly, the upper section body of the tailgate and the reinforcement plate in the tailgate window frame. The upper section body of the tailgate and the reinforcement plate in the tailgate window frame are located between the first upper section sub-assembly and the second upper section sub-assembly and are connected to the first upper section sub-assembly and the second upper section sub-assembly. The upper section body of the tailgate and the reinforcement plate in the tailgate window frame are arranged relatively.

2. The upper section structure of the SUV side-opening rear door according to claim 1 is characterized in that: The first upper section sub-assembly comprises a first upper section outer panel and a first upper section inner panel of the back door which are connected to each other. The first upper section outer panel of the back door is formed by stamping, and the first upper section inner panel of the back door is formed by drawing in one step.

3. The upper section structure of the SUV side-opening rear door according to claim 2 is characterized in that: The material thickness of the first upper outer panel of the back door and the first upper inner panel of the back door is 0.8 to 1.2 mm.

4. The upper section structure of the SUV side-opening tailgate according to any one of claims 1 to 3, characterized in that: The second upper section sub-assembly comprises a second upper section outer panel and a second upper section inner panel of the back door which are connected to each other. The second upper section outer panel of the back door is formed by stamping, and the second upper section inner panel of the back door is formed by drawing in one step.

5. The upper section structure of the SUV side-opening rear door according to claim 4 is characterized in that: The material thickness of the second upper outer panel of the back door and the second upper inner panel of the back door is 0.8 to 1.2 mm.

6. The upper section structure of the SUV side-opening tailgate according to any one of claims 1 to 5, characterized in that: The upper section of the rear door body is formed by a rolling process.

7. The upper section structure of the SUV side-opening tailgate according to any one of claims 1 to 5, characterized in that: The reinforcing plate in the rear door and window frame is formed by stamping.

8. The method for producing the upper structure of the SUV side-opening rear door according to any one of claims 1 to 7, characterized in that: Includes steps: S1. Prepare a first upper subassembly, a second upper subassembly, a rear door upper body, and a rear door window frame reinforcement plate; S2. Welding the first upper subassembly, the second upper subassembly, the upper tailgate body and the reinforcing plate in the tailgate window frame to form a closed ring structure, thereby obtaining the upper tailgate structure of the SUV side-opening tailgate.

9. The back door assembly is characterized by: It comprises the upper section structure of the side-opening rear door of an SUV vehicle as described in any one of claims 1 to 7.

10. A vehicle, characterized in that Including the tailgate assembly as described in claim 9.

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