Lock catch reinforcing plate, vehicle rear wall assembly and vehicle

Abstract

The utility model discloses a lock catch reinforcing plate, a vehicle rear wall assembly and a vehicle. The lock catch reinforcing plate is used for being connected and matched with a rear wall inner plate and a rear wall outer plate, the lock catch reinforcing plate is sequentially provided with a first-order platform, a first-order vertical face, a second-order platform, a second-order inclined face, a third-order platform and a third-order inclined face from bottom to top in the longitudinal direction, and the first-order platform is connected with the upper side of the rear wall outer plate; the third-order inclined face is used for being connected with the lower side of the rear wall outer plate, and the first-order vertical face, the second-order platform, the second-order inclined face and the third-order platform are used for being connected with the rear wall inner plate in an attached mode. The lock catch reinforcing plate is provided with five faces, the number of connecting faces is large, stress distribution is easier to conduct and disperse after the lock catch is loaded, stress distribution of welding spots is more uniform, the rigidity of the lock catch reinforcing plate is improved, and the structural stability is high. The lock catch reinforcing plate is light in weight and low in production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a locking reinforcement plate, a vehicle rear enclosure assembly and a vehicle. Background Art

[0002] The car's tailgate needs to be opened and closed frequently for storing and taking out items. When the tailgate is closed, the lock on the tailgate will collide with the lock on the rear body assembly. In order to enhance the rigidity of the lock installation point on the rear body assembly and improve the closing sound quality of the tailgate, a lock reinforcement plate is usually installed at the location where the lock is installed on the rear body assembly.

[0003] The rear panel assembly of a vehicle includes the rear panel inner panel and the rear panel outer panel, and the buckle reinforcement plate is usually located between the rear panel inner panel and the rear panel outer panel. The buckle reinforcement plate is a key load-bearing component, and its structural form directly affects the buckle stiffness. Insufficient buckle stiffness leads to a decrease in the durability, modality, NVH, dynamic closing sound quality and other performance of the rear cover.

[0004] Configurations such as through-type taillights and large rear wings increase the weight of the rear cover. The lock is a key load-bearing component when the rear cover is closed. The increased load on the rear cover end brings new challenges to the durability of the lock installation structure. The insufficient stiffness of the lock reinforcement plate will increase the risk of fatigue cracking of the welds around the lock and the rear cover, and vibrating noise will occur when the rear cover is dynamically closed. Especially with the development of the automobile industry, the installation of large-mass configurations such as through-type taillights and rear wings on the rear cover increases its load, and puts higher requirements on the lock stiffness and durability of the installation structure. In order to achieve higher stiffness and structural durability, it is usually necessary to enlarge the lock reinforcement plate or increase the material thickness in engineering, but the current price competition in the automotive industry is fierce, and both solutions will cost more. Utility Model Content

[0005] The embodiments of the present application provide a lock reinforcement plate, a vehicle rear panel assembly and a vehicle, which can solve the current technical problems of low rear cover modality, poor NVH performance, reduced durability, high risk of cracking, and reduced dynamic closing sound quality caused by insufficient rigidity of the lock reinforcement plate. If the lock reinforcement plate is enlarged or the material thickness is increased, it will cause high production costs.

[0006] An embodiment of the present application provides a lock reinforcement plate, which is used to connect and cooperate with a rear enclosure inner panel and a rear enclosure outer panel. The lock reinforcement plate is provided with a first-step platform, a first-step vertical surface, a second-step platform, a second-step inclined surface, a third-step platform and a third-step inclined surface from bottom to top in the longitudinal direction. The first-step platform is connected to the upper side of the rear enclosure outer panel, the third-step inclined surface is used to connect to the lower side of the rear enclosure outer panel, and the first-step vertical surface, the second-step platform, the second-step inclined surface and the third-step platform are used to fit and connect with the rear enclosure inner panel.

[0007] Furthermore, the lock reinforcement plate also includes a left supporting leg, a left connecting edge, a right supporting leg and a right connecting edge, the left supporting leg and the right supporting leg are respectively connected to the two sides of the second-order slope, the left connecting edge and the right connecting edge are used to connect to the rear outer panel, the left supporting leg is connected between the edge of the second-order slope and the left connecting edge, and the width of the left supporting leg decreases from the second-order slope to the left connecting edge, the right supporting leg is connected between the edge of the second-order slope and the right connecting edge, and the width of the right supporting leg decreases from the second-order slope to the right connecting edge.

[0008] Furthermore, the lock reinforcement plate also includes a left sinker reinforcement structure and a right sinker reinforcement structure. The left sinker reinforcement structure is arranged at the connection between the second-step inclined plane, the left supporting leg and the third-step platform, and the right sinker reinforcement structure is arranged at the connection between the second-step inclined plane, the right supporting leg and the third-step platform.

[0009] Furthermore, a waist connecting platform is provided in the middle of the second-order platform, and the waist connecting platform is connected to the rear inner panel; a raised reinforcement structure is provided in the middle of the first-order facade, and the raised reinforcement structure is smoothly connected to the waist connecting platform, and the raised reinforcement structure is spaced apart from the corresponding rear inner panel.

[0010] An embodiment of the present application also provides a vehicle rear enclosure assembly, which includes a rear enclosure inner panel, a rear enclosure outer panel, and a locking reinforcement plate as described in any one of the above, wherein the locking reinforcement plate is connected between the rear enclosure outer panel and the rear enclosure inner panel.

[0011] Furthermore, the rear outer panel is provided with a first upper connecting edge and a first lower connecting edge at both ends in the longitudinal direction;

[0012] The two ends of the lock reinforcement plate in the longitudinal direction are respectively provided with a second upper connecting edge and a second lower connecting edge, the first-step platform is connected to the first upper connecting edge as the second upper connecting edge, and the third-step inclined surface is connected to the first lower connecting edge as the second lower connecting edge; the two ends of the lock reinforcement plate in the transverse direction are respectively provided with a left connecting edge and a right connecting edge, and the left connecting edge and the right connecting edge are connected to the inner side of the rear enclosure outer panel;

[0013] The rear enclosure inner panel is provided with a third upper connecting edge and a third lower connecting edge at both ends in the longitudinal direction; the third upper connecting edge is connected to the second upper connecting edge, and the third lower connecting edge is connected to the second lower connecting edge.

[0014] Furthermore, a locking groove is provided in the middle portion of the rear inner panel, and the locking groove includes a spot welding platform and a locking mounting surface, the spot welding platform is spot-welded to the second-order platform, the locking mounting surface is spot-welded to the second-order inclined surface, and the inclination angle of the locking mounting surface is the same as that of the second-order inclined surface.

[0015] Furthermore, the lock mounting surface is provided with two top bolt through holes for installing the rear cover lock assembly, and the lock reinforcement plate is provided with two middle bolt through holes corresponding to the two top bolt through holes, and two lock bolts pass through the middle bolt through holes and the top bolt through holes to be threadedly connected to the rear cover lock assembly.

[0016] Furthermore, the vehicle rear enclosure assembly also includes a nut gasket, which is provided with a first petal, a second petal and a third petal distributed in a three-petal manner, the first petal and the second petal are arranged in a straight line, the first petal and the second petal are provided with two bottom bolt holes corresponding to the two middle bolt holes, and the third petal is spot-welded to the lock reinforcement plate.

[0017] Furthermore, the rear enclosure inner panel is provided with a left connection avoidance hole corresponding to the left connection edge position, and the rear enclosure inner panel is provided with a right connection avoidance hole corresponding to the right connection edge position; the rear enclosure inner panel is also provided with a trim panel mounting hole adjacent to the third upper connection edge position; the third lower connection edge is also provided with a rear storage box mounting hole; the rear enclosure outer panel also includes a vertical mounting plate and a horizontal fixing plate, the vertical mounting plate and the horizontal fixing plate are integrally arranged in an L shape, and the vertical mounting plate is provided with a positioning hole and a rear protection bracket mounting hole.

[0018] An embodiment of the present application also provides a vehicle, comprising the vehicle rear enclosure assembly as described in any one of the foregoing descriptions.

[0019] The lock buckle reinforcement plate, vehicle rear enclosure assembly and vehicle provided in the embodiments of the present application have a total of five surfaces of the lock buckle reinforcement plate, which can be connected to the rear enclosure inner plate. The multiple connection surfaces make it easier to conduct and disperse the stress distribution after the lock buckle is loaded, and the force distribution of the welding points is more uniform, which solves the problem of insufficient durability of the installation structure. The main section of the lock buckle reinforcement plate is a three-step step, which improves the rigidity of the lock buckle reinforcement plate. The lock buckle reinforcement plate has high structural stability, which is beneficial to the durability of the rear cover, NVH performance and closing sound quality, so that the total force of the vehicle rear enclosure is uniform and not easy to produce stress concentration, and has high durability. The lock buckle reinforcement plate is light in weight, low in production cost, and has significant cost-effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0021] Figure 1A schematic structural diagram of a vehicle rear enclosure assembly provided in an embodiment of the present application.

[0022] Figure 2 A cross-sectional view of a vehicle rear enclosure assembly provided in an embodiment of the present application.

[0023] Figure 3 A front view of the rear outer panel provided in an embodiment of the present application.

[0024] Figure 4 A schematic diagram of the structure of the lock reinforcement plate provided in an embodiment of the present application.

[0025] Figure 5 A cross-sectional view of the lock reinforcement plate provided in an embodiment of the present application.

[0026] Figure 6 A schematic diagram of the front structure of the rear inner panel provided in an embodiment of the present application.

[0027] Figure 7 A schematic diagram of the back structure of the rear inner panel provided in an embodiment of the present application.

[0028] Figure 8 A schematic diagram of the structure of the nut gasket provided in an embodiment of the present application.

[0029] The markings in the figure are as follows:

[0030] Rear enclosure outer panel 1, first upper connecting edge 11, first lower connecting edge 12, vertical mounting plate 13, positioning hole 131, rear protection bracket mounting hole 132, horizontal fixing plate 14, rear enclosure inner panel 2, third upper connecting edge 21, third lower connecting edge 22, locking groove 23, spot welding platform 231, locking mounting surface 232, top bolt through hole 233, left connection avoidance hole 24, right connection avoidance hole 25, trim mounting hole 26, rear storage box mounting hole 27, reinforcing rib 28, locking reinforcement plate 3, second upper connecting edge 31, second lower connecting edge 32, left connecting edge 33, right connecting edge 34, left supporting leg 35, right supporting leg 36, left sunken platform reinforcement structure 37, right sunken platform reinforcement structure 38, first-order platform 301, first-order vertical surface 302, second-order platform 303, second-order inclined surface 304, third-order platform 305, third-order inclined surface 306, middle bolt through hole 307, waist connecting platform 308, raised reinforcement structure 309, rear cover lock assembly 4, locking bolt 41, nut gasket 5, first petal 51, second petal 52, third petal 53, bottom bolt through hole 54. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] Example 1

[0035] like Figure 1 , Figure 2 As shown, embodiment 1 of the present application provides a lock reinforcement plate 3, which is used to connect and cooperate with the rear enclosure inner panel 2 and the rear enclosure outer panel 1.

[0036] like Figure 5As shown, the lock reinforcement plate 3 is provided with a first-step platform 301, a first-step vertical surface 302, a second-step platform 303, a second-step inclined surface 304, a third-step platform 305 and a third-step inclined surface 306 in the longitudinal direction from bottom to top, the first-step platform 301 is connected to the upper side of the rear enclosure outer panel 1, the third-step inclined surface 306 is used to connect to the lower side of the rear enclosure outer panel 1, the first-step vertical surface 302, the second-step platform 303, the second-step inclined surface 304 and the third-step platform 305 are used to fit and connect with the rear enclosure inner panel 2.

[0037] like Figure 4 As shown, the locking reinforcement plate 3 further includes a left supporting leg 35, a left connecting edge 33, a right supporting leg 36 and a right connecting edge 34. The locking reinforcement plate 3 is connected to the left connecting edge 33 through the left supporting leg 35, and the locking reinforcement plate 3 is connected to the right connecting edge 34 through the right supporting leg 36. Both the left supporting leg 35 and the right supporting leg 36 are structures with a wide top and a narrow bottom, which can reduce the weight of the bracket. Specifically, the left supporting leg 35 and the right supporting leg 36 are respectively connected to the two sides of the second-order inclined surface 304, and the left connecting edge 33 and the right connecting edge 34 are used to be connected to the rear outer panel 1. The left supporting leg 35 is connected between the edge of the second-order inclined surface 304 and the left connecting edge 33, and the width of the left supporting leg 35 decreases from the second-order inclined surface 304 to the left connecting edge 33. The right supporting leg 36 is connected between the edge of the second-order inclined surface 304 and the right connecting edge 34, and the width of the right supporting leg 36 decreases from the second-order inclined surface 304 to the right connecting edge 34.

[0038] like Figure 4 As shown, the locking reinforcement plate 3 also includes a left sinking platform reinforcement structure 37 and a right sinking platform reinforcement structure 38. The left sinking platform reinforcement structure 37 is arranged at the connection between the second-step inclined surface 304, the left supporting leg 35 and the third-step platform 305, and the right sinking platform reinforcement structure 38 is arranged at the connection between the second-step inclined surface 304, the right supporting leg 36 and the third-step platform 305.

[0039] like Figure 4 , Figure 5As shown, a waist connection platform 308 is provided in the middle of the second-order platform 303, and the waist connection platform 308 is connected to the rear inner panel 2; a raised reinforcement structure 309 is provided in the middle of the first-order elevation 302, and the raised reinforcement structure 309 is smoothly connected to the waist connection platform 308, and the raised reinforcement structure 309 is arranged at intervals with the corresponding rear inner panel 2. The rear inner panel 2 is also provided with a reinforcing rib 28, and the reinforcing rib 28 is arranged corresponding to the raised reinforcement structure 309. Preferably, the reinforcing rib 28 and the raised reinforcement structure 309 are arranged at intervals, and the reinforcing rib 28 and the raised reinforcement structure 309 respectively achieve a supporting function, which not only reduces the weight of the structure but also improves the structural strength.

[0040] The embodiment of the present application has a total of five faces by setting the lock reinforcement plate 3, which can be connected to the rear enclosure inner panel 2. With more connection faces, the stress distribution is easier to conduct and disperse after the lock is loaded, and the force distribution of the welding point is more uniform, which solves the problem of insufficient durability of the installation structure. The main section of the lock reinforcement plate 3 is a three-step step, which improves the rigidity of the lock reinforcement plate 3. The upper and lower edges of the lock reinforcement plate 3 are respectively provided with a second upper connecting edge 31 and a second lower connecting edge 32 to be spot-welded to the stop edges of the rear enclosure inner panel 2 and the rear enclosure outer panel 1. The lock reinforcement plate 3 has high structural stability and high rigidity, which is beneficial to the durability of the rear cover, NVH performance and closing sound quality, so that the total force of the vehicle rear enclosure is uniform and stress concentration is not easy to occur, and the overall durability of the vehicle rear enclosure is high. The lock reinforcement plate 3 is light in weight, low in production cost, and has a significant cost-effectiveness advantage.

[0041] Example 2

[0042] like Figure 1 , Figure 2 As shown, Example 2 of the present application provides a vehicle rear enclosure assembly, which includes a rear enclosure outer panel 1, a rear enclosure inner panel 2, and a locking reinforcement plate 3 of Example 1; the rear enclosure outer panel 1 is connected to the rear enclosure inner panel 2, and the locking reinforcement plate 3 is connected between the rear enclosure outer panel 1 and the rear enclosure inner panel 2. Preferably, the locking reinforcement plate 3 is connected between the rear enclosure outer panel 1 and the rear enclosure inner panel 2 by welding.

[0043] like Figure 5 As shown, the lock reinforcement plate 3 is provided with a first-step platform 301, a first-step vertical surface 302, a second-step platform 303, a second-step inclined surface 304, a third-step platform 305 and a third-step inclined surface 306 in the longitudinal direction from bottom to top, the first-step platform 301 is connected to the upper side of the rear enclosure outer panel 1, the third-step inclined surface 306 is connected to the lower side of the rear enclosure outer panel 1, the first-step vertical surface 302, the second-step platform 303, the second-step inclined surface 304 and the third-step platform 305 are all fitted and connected with the rear enclosure inner panel 2.

[0044] The embodiment of the present application sets a lock reinforcement plate 3 and a rear enclosure inner plate 2 for spot welding connection. There are many connection surfaces, and the stress distribution is easier to conduct and disperse after the lock is loaded. The force distribution of the welding point is more uniform, which solves the problem of insufficient durability of the installation structure. The main section of the lock reinforcement plate 3 is a three-step step, which improves the rigidity of the lock reinforcement plate 3. The upper and lower edges of the lock reinforcement plate 3 are respectively provided with a second upper connecting edge 31 and a second lower connecting edge 32 for spot welding connection with the stop edge of the rear enclosure inner plate 2 and the rear enclosure outer plate 1. The left and right sides of the lock reinforcement plate 3 are provided with a left connecting edge and a right connecting edge 34 for connection with the inner side of the rear enclosure outer plate 1, and the structural stability is high.

[0045] like Figure 3 As shown, the rear outer panel 1 is provided with a first upper connecting edge 11 and a first lower connecting edge 12 at both ends in the longitudinal direction. The first upper connecting edge 11 and the first lower connecting edge 12 are both welding positions, and are connected to the lock reinforcement plate 3 by spot welding.

[0046] like Figure 4 , Figure 5 As shown, the lock reinforcement plate 3 is respectively provided with a second upper connecting edge 31 and a second lower connecting edge 32 at both ends in the longitudinal direction, the first-step platform 301 is connected to the first upper connecting edge 11 as the second upper connecting edge 31, and the third-step inclined surface 306 is connected to the first lower connecting edge 12 as the second lower connecting edge 32; the lock reinforcement plate 3 is respectively provided with a left connecting edge 33 and a right connecting edge 34 at both ends in the transverse direction, and the left connecting edge 33 and the right connecting edge 34 are connected to the inner side of the rear outer panel 1.

[0047] like Figure 6 , Figure 7 As shown, the rear inner panel 2 is provided with a third upper connecting edge 21 and a third lower connecting edge 22 at both ends in the longitudinal direction; the third upper connecting edge 21 is connected to the second upper connecting edge 31, and the third lower connecting edge 22 is connected to the second lower connecting edge 32. Preferably, the first lower connecting edge 12, the third lower connecting edge 22 and the second lower connecting edge 32 have the same inclination angle, so that the first lower connecting edge 12, the third lower connecting edge 22 and the second lower connecting edge 32 can be connected parallel to each other.

[0048] like Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a locking groove 23 is provided in the middle of the rear inner panel 2, and the locking groove 23 includes a spot welding platform 231 and a locking mounting surface 232, the spot welding platform 231 is spot-welded to the second-order platform 303, and the locking mounting surface 232 is spot-welded to the second-order inclined surface 304, and the inclination angle of the locking mounting surface 232 is the same as that of the second-order inclined surface 304.

[0049] Furthermore, the lock mounting surface 232 is provided with two top bolt holes 233 for installing the rear cover lock assembly 4, and the lock reinforcement plate 3 is provided with two middle bolt holes 307 corresponding to the two top bolt holes 233, and two lock bolts 41 pass through the middle bolt holes 307 and the top bolt holes 233 to be threadedly connected to the rear cover lock assembly 4.

[0050] like Figure 7 , Figure 8 As shown, the vehicle rear enclosure assembly also includes a nut gasket 5, and the nut gasket 5 is provided with a first petal 51, a second petal 52 and a third petal 53 distributed in a three-petal manner. The first petal 51 and the second petal 52 are arranged in a straight line, and two bottom bolt holes 54 are provided on the first petal 51 and the second petal 52 corresponding to the two middle bolt holes 307, and the third petal 53 is spot-welded to the lock reinforcement plate 3.

[0051] A three-petal nut gasket 5 is arranged at the joint between the locking bolt 41 and the locking reinforcement plate 3. The locking bolt 41 can be effectively prevented from loosening after being tightened. The third petal 53 is connected to the locking reinforcement plate 3. The connection points of the two locking bolts 41 and the welding points form a triangle. When the rear cover is subjected to extreme impact conditions and the lock is subjected to large loads, the structural strength is higher and it is not easy to fall off, thereby improving the safety of the vehicle.

[0052] like Figure 4 As shown, the locking reinforcement plate 3 further includes a left supporting leg 35 and a right supporting leg 36. The locking reinforcement plate 3 is connected to the left connecting edge 33 through the left supporting leg 35, and the locking reinforcement plate 3 is connected to the right connecting edge 34 through the right supporting leg 36. Both the left supporting leg 35 and the right supporting leg 36 are structures with a wide top and a narrow bottom, which can reduce the weight of the bracket.

[0053] like Figure 4 As shown, the locking reinforcement plate 3 also includes a left sinking platform reinforcement structure 37 and a right sinking platform reinforcement structure 38. The left sinking platform reinforcement structure 37 is arranged at the connection between the second-step inclined surface 304, the left supporting leg 35 and the third-step platform 305, and the right sinking platform reinforcement structure 38 is arranged at the connection between the second-step inclined surface 304, the right supporting leg 36 and the third-step platform 305.

[0054] like Figure 4 , Figure 5As shown, a waist connection platform 308 is provided in the middle of the second-order platform 303, and the waist connection platform 308 is spot-welded to the spot welding platform 231; a protruding reinforcement structure 309 is provided in the middle of the first-order elevation 302; and the rear inner panel 2 is further provided with a reinforcing rib 28, and the reinforcing rib 28 is arranged corresponding to the protruding reinforcement structure 309. Preferably, the reinforcing rib 28 and the protruding reinforcement structure 309 are arranged at intervals, and the reinforcing rib 28 and the protruding reinforcement structure 309 respectively achieve a supporting function, which not only reduces the weight of the structure but also improves the structural strength.

[0055] like Figure 6 , Figure 7 As shown, the rear enclosure inner panel 2 is provided with a left connection avoidance hole 24 at a position corresponding to the left connection edge 33, and the rear enclosure inner panel 2 is provided with a right connection avoidance hole 25 at a position corresponding to the right connection edge 34; the rear enclosure inner panel 2 is also provided with a trim panel mounting hole 26 at a position adjacent to the third upper connection edge 21; and the third lower connection edge 22 is also provided with a rear storage box mounting hole 27.

[0056] like Figure 3 As shown, the rear outer panel 1 further includes a vertical mounting plate 13 and a horizontal fixing plate 14 . The vertical mounting plate 13 and the horizontal fixing plate 14 are integrally arranged in an L shape. The vertical mounting plate 13 is provided with a positioning hole 131 and a rear guard bracket mounting hole 132 .

[0057] Example 3

[0058] Embodiment 3 of the present application also provides a vehicle, which includes the vehicle rear enclosure assembly described in Embodiment 2.

[0059] The buckle reinforcement plate, vehicle rear panel assembly and vehicle provided in the embodiment of the present application are provided with a buckle reinforcement plate 3 having five faces, which can be spot-welded to the rear panel inner panel 2. With many connection faces, the stress distribution after the buckle is loaded is easier to be transmitted and dispersed, and the force distribution of the welding point is more uniform, which solves the problem of insufficient durability of the installation structure. The main section of the buckle reinforcement plate 3 is a three-step step, which improves the rigidity of the buckle reinforcement plate 3. The upper and lower edges of the buckle reinforcement plate 3 are respectively provided with a second upper connecting edge 31 and a second lower connecting edge 32 to be spot-welded to the stop edge of the rear panel inner panel 2 and the rear panel outer panel 1. The left and right sides of the buckle reinforcement plate 3 are provided with a left connecting edge and a right connecting edge 34 to be connected to the inner side of the rear panel outer panel 1, and the structural stability is high. The overall rigidity of the rear panel of the vehicle is high, which is beneficial to the durability of the rear cover, NVH performance and closing sound quality. The overall force of the rear panel of the vehicle is uniform and stress concentration is not easy to occur, and the overall durability of the rear panel of the vehicle is high. The buckle reinforcement plate 3 is light in weight, low in production cost, and has a significant cost-effectiveness advantage.

[0060] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0061] The above is a detailed introduction to a lock reinforcement plate, a vehicle rear panel assembly and a vehicle provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lock reinforcement plate, characterized in that: The lock reinforcement plate is used to connect and cooperate with the rear enclosure inner panel and the rear enclosure outer panel. The lock reinforcement plate is provided with a first-step platform, a first-step vertical surface, a second-step platform, a second-step inclined surface, a third-step platform and a third-step inclined surface from bottom to top in the longitudinal direction. The first-step platform is connected to the upper side of the rear enclosure outer panel, the third-step inclined surface is used to connect to the lower side of the rear enclosure outer panel, and the first-step vertical surface, the second-step platform, the second-step inclined surface and the third-step platform are used to fit and connect with the rear enclosure inner panel.

2. The lock reinforcement plate according to claim 1, characterized in that: The lock reinforcement plate also includes a left supporting leg, a left connecting edge, a right supporting leg and a right connecting edge. The left supporting leg and the right supporting leg are respectively connected to the two sides of the second-order slope. The left connecting edge and the right connecting edge are used to connect to the rear outer panel. The left supporting leg is connected between the edge of the second-order slope and the left connecting edge, and the width of the left supporting leg decreases from the second-order slope to the left connecting edge. The right supporting leg is connected between the edge of the second-order slope and the right connecting edge, and the width of the right supporting leg decreases from the second-order slope to the right connecting edge.

3. The lock reinforcement plate according to claim 2, characterized in that: The lock reinforcement plate also includes a left sinker reinforcement structure and a right sinker reinforcement structure. The left sinker reinforcement structure is arranged at the connection between the second-step inclined plane, the left supporting leg and the third-step platform, and the right sinker reinforcement structure is arranged at the connection between the second-step inclined plane, the right supporting leg and the third-step platform.

4. The lock reinforcement plate according to claim 1, characterized in that: A waist connecting platform is provided in the middle of the second-order platform, and the waist connecting platform is connected to the rear inner panel; a raised reinforcement structure is provided in the middle of the first-order facade, and the raised reinforcement structure is smoothly connected to the waist connecting platform, and the raised reinforcement structure is spaced apart from the corresponding rear inner panel.

5. A vehicle rear enclosure assembly, characterized in that: It comprises a rear enclosure inner panel, a rear enclosure outer panel and a locking reinforcement plate as claimed in any one of claims 1 to 4, wherein the locking reinforcement plate is connected between the rear enclosure outer panel and the rear enclosure inner panel.

6. The vehicle rear enclosure assembly according to claim 5, characterized in that: The rear outer panel is provided with a first upper connecting edge and a first lower connecting edge at both ends in the longitudinal direction; The two ends of the lock reinforcement plate in the longitudinal direction are respectively provided with a second upper connecting edge and a second lower connecting edge, the first-step platform is connected to the first upper connecting edge as the second upper connecting edge, and the third-step inclined surface is connected to the first lower connecting edge as the second lower connecting edge; the two ends of the lock reinforcement plate in the transverse direction are respectively provided with a left connecting edge and a right connecting edge, and the left connecting edge and the right connecting edge are connected to the inner side of the rear enclosure outer panel; The rear enclosure inner panel is provided with a third upper connecting edge and a third lower connecting edge at both ends in the longitudinal direction; the third upper connecting edge is connected to the second upper connecting edge, and the third lower connecting edge is connected to the second lower connecting edge.

7. The vehicle rear enclosure assembly according to claim 5, characterized in that: A lock groove is provided in the middle part of the rear inner panel, and the lock groove includes a spot welding platform and a lock mounting surface, the spot welding platform is spot-welded to the second-order platform, the lock mounting surface is spot-welded to the second-order inclined surface, and the lock mounting surface has the same inclination angle as the second-order inclined surface; the lock mounting surface is provided with two top bolt through holes for installing the rear cover lock assembly, and the lock reinforcement plate is provided with two middle bolt through holes corresponding to the two top bolt through holes, and two lock bolts pass through the middle bolt through holes and the top bolt through holes to be threadedly connected to the rear cover lock assembly.

8. The vehicle rear enclosure assembly according to claim 7, characterized in that: The vehicle rear enclosure assembly also includes a nut gasket, which is provided with a first petal, a second petal and a third petal distributed in a three-petal manner, the first petal and the second petal are arranged in a straight line, the first petal and the second petal are provided with two bottom bolt holes corresponding to the two middle bolt holes, and the third petal is spot-welded to the lock reinforcement plate.

9. The vehicle rear enclosure assembly according to claim 6, characterized in that: The rear enclosure inner panel is provided with a left connection avoidance hole corresponding to the left connection edge position, and the rear enclosure inner panel is provided with a right connection avoidance hole corresponding to the right connection edge position; the rear enclosure inner panel is also provided with a trim panel mounting hole adjacent to the third upper connection edge position; the third lower connection edge is also provided with a rear storage box mounting hole; the rear enclosure outer panel also includes a vertical mounting plate and a horizontal fixing plate, the vertical mounting plate and the horizontal fixing plate are integrally arranged in an L shape, and the vertical mounting plate is provided with a positioning hole and a rear protection bracket mounting hole.

10. A vehicle, characterized in that: The vehicle comprises the vehicle rear enclosure assembly according to any one of claims 5 to 9.

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