Side wall door ring and vehicle

Abstract

The utility model provides a side wall door ring and a vehicle, the side wall door ring comprises a door ring inner plate and a door ring reinforcing plate which are mutually buckled and fixed, and the door ring inner plate and the door ring reinforcing plate respectively comprise a plurality of sections of thermal forming plates which are sequentially butted to form a ring; adjacent thermal forming plates of the door ring inner plate are welded to form an inner plate welding seam, and adjacent thermal forming plates of the door ring reinforcing plate are welded to form a reinforcing plate welding seam; wherein the inner plate welding seam and the reinforcing plate welding seam are distributed in a staggered manner in the width direction of the vehicle body. According to the side wall door ring provided by the utility model, the plurality of sections of thermal forming plates are sequentially butted to form the ring, the continuous welding seams are formed at the butted parts, and the welded door ring inner plate and the door ring reinforcing plate are respectively subjected to integral punch forming by adopting a set of die, so that the material cost is reduced, and the achievement of a lightweight index is promoted; and the inner plate welding seams and the reinforcing plate welding seams are distributed in a staggered mode in the width direction of the vehicle body, so that the overall structural stability of the side wall door ring can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle body structures, and in particular relates to a side door ring and a vehicle. Background Art

[0002] The door ring is a key component of the car side as a structure that matches the door. It is usually surrounded by the A-pillar, B-pillar and door sill beam. Each position corresponding to the A-pillar, B-pillar and door sill beam is fixed by welding the door ring inner plate and the door ring reinforcement plate or the door ring outer guard plate together.

[0003] From the perspective of vehicle body strength and collision safety, different positions of the side door ring need to have different strength levels. Therefore, the current method is to first stamp plates of different strength levels or thicknesses according to the design structure, and then connect the parts at each position after stamping by overlapping spot welding. The disadvantages of this connection method are that, on the one hand, it is easy to have splicing quality problems due to factors such as welding accuracy and thermal stress deformation, and the stability is poor. In addition, the cost is high because stamping dies need to be developed for each part. On the other hand, the overlapping structure between parts is not conducive to achieving the lightweight index of the vehicle body. Utility Model Content

[0004] The embodiment of the utility model provides a side door ring and a vehicle, aiming to improve the structural stability and production cost of the side door ring and promote vehicle body weight reduction.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: in the first aspect, a side door ring is provided, including a door ring inner plate and a door ring reinforcement plate which are interlocked and fixed with each other, the door ring inner plate and the door ring reinforcement plate both include multiple sections of thermoformed plates which are sequentially connected to form a ring; adjacent thermoformed plates of the door ring inner plate are welded to form an inner plate weld, and adjacent thermoformed plates of the door ring reinforcement plate are welded to form a reinforcement plate weld; wherein, both the inner plate weld and the reinforcement plate weld are continuous welds and the two are staggered in the width direction of the vehicle body.

[0006] In combination with the first aspect, in a possible implementation, the sections of the thermoformed plate of the door ring inner panel respectively form an A-pillar inner panel lower section and an A-pillar inner panel upper section that are butted up and down, a B-pillar inner panel upper section and a B-pillar inner panel lower section that are butted up and down, and a door sill inner panel;

[0007] Among them, the lower end of the lower section of the A-pillar inner panel is bent backward and connected with the front end of the rocker inner panel, the upper section of the A-pillar inner panel extends backward and connects with the upper end of the upper section of the B-pillar inner panel, and the lower section of the B-pillar inner panel is connected with the upper edge of the rear end of the rocker inner panel.

[0008] In some embodiments, the upper section of the A-pillar inner panel extends backwards obliquely to the rear side of the upper section of the B-pillar inner panel and forms a first joint, which is used to connect with the surrounding parts to form a first weld; the rocker inner panel extends backwards to the rear side of the lower section of the B-pillar inner panel and forms a second joint, which is used to connect with the surrounding parts to form a second weld.

[0009] Exemplarily, each section of the thermoformed plate of the door ring reinforcement plate respectively forms an upper section of the A-pillar reinforcement plate and a lower section of the A-pillar reinforcement plate, a door sill reinforcement plate, a lower joint of the B-pillar reinforcement plate, an upper section of the B-pillar reinforcement plate, and a joint of the A-pillar reinforcement plate;

[0010] Among them, the lower end of the lower section of the A-pillar reinforcement plate is bent backward and connected to the door sill reinforcement plate front and back; one end of the upper section of the A-pillar reinforcement plate is connected to the upper end of the lower section of the A-pillar reinforcement plate up and down, and the other end extends backward and tilts and connects to the joint on the A-pillar reinforcement plate front and back; the joint on the A-pillar reinforcement plate is connected to the upper section of the B-pillar reinforcement plate up and down; the lower joint of the B-pillar reinforcement plate is connected to the door sill reinforcement plate front and back, and is connected to the upper section of the B-pillar reinforcement plate up and down.

[0011] For example, the upper joint of the A-pillar reinforcement plate includes a first connecting section extending front and rear and docking with the upper part of the A-pillar reinforcement plate, and a second connecting section extending downward from the middle of the first connecting section and docking with the upper part of the B-pillar reinforcement plate; the rear end of the first connecting section is used to dock with surrounding parts to form a third weld, and the third weld is staggered with the first weld along the width direction of the vehicle body; the lower joint of the B-pillar reinforcement plate includes a third connecting section extending front and rear and docking with the rocker reinforcement plate, and a fourth connecting section extending upward from the middle of the third connecting section and docking with the upper part of the B-pillar reinforcement plate; the rear end of the fourth connecting section is used to dock with surrounding parts to form a fourth weld, and the fourth weld is staggered with the second weld along the width direction of the vehicle body.

[0012] In one possible implementation, a patch plate is provided on the inner side of the upper portion of the B-pillar reinforcement plate, the upper end of the patch plate extends to above the upper portion of the B-pillar reinforcement plate and overlaps the upper joint of the A-pillar reinforcement plate, and the upper boundary of the patch plate is located above the upper boundary of the upper portion of the B-pillar inner plate.

[0013] In some embodiments, the strength grade of the patch plate is higher than that of the upper portion of the B-pillar reinforcement plate; the strength grade of the upper portion of the B-pillar reinforcement plate, the joint of the A-pillar reinforcement plate, the upper portion of the A-pillar reinforcement plate, the rocker reinforcement plate, the upper portion of the A-pillar inner panel, the upper portion of the B-pillar inner panel, and the rocker inner panel is higher than that of the lower joint of the B-pillar reinforcement plate, the lower portion of the A-pillar reinforcement plate, the lower portion of the A-pillar inner panel, and the lower portion of the B-pillar inner panel.

[0014] Exemplarily, the offset distance between the inner plate weld and the reinforcement plate weld is greater than 100 mm.

[0015] For example, the thickness of the door ring inner plate is less than or equal to the thickness of the door ring reinforcement plate.

[0016] The beneficial effect of the side door ring provided by the utility model is that compared with the prior art, the side door ring, the door ring inner plate and the door ring reinforcement plate of the utility model respectively adopt multiple sections of hot-formed plates, which are sequentially butted together to form a ring, and then the butted parts are welded and fixed by continuous welds. After welding, the door ring inner plate and the door ring reinforcement plate can be respectively stamped as a whole by a set of molds, thereby reducing the types of mold development and reducing production costs. At the same time, the adjacent hot-formed plates are butt-jointed and welded by continuous welds compared to the lap spot welding method, which is not only conducive to reducing material costs and promoting the achievement of lightweight indicators, but also the overall stamping method can ensure the relative position accuracy between each section of the hot-formed plate, thereby improving product quality. On this basis, by staggering the inner plate welds and the reinforcement plate welds in the width direction of the vehicle body, it is possible to avoid the butt joint positions on the door ring inner plate and the door ring reinforcement plate being in the same section and affecting the overall structural strength, thereby improving the structural stability of the side door ring.

[0017] In a second aspect, an embodiment of the utility model further provides a vehicle, comprising the above-mentioned side door knocker.

[0018] The beneficial effect of the vehicle provided by the utility model is that compared with the prior art, the vehicle of the utility model adopts the above-mentioned side door ring, the door ring inner plate and the door ring reinforcement plate are respectively made of multi-section hot-formed plates, which are sequentially butt-jointed into rings and then the butt joints are welded and fixed by continuous welds, and the door ring inner plate and the door ring reinforcement plate after welding are respectively stamped as a whole by a set of molds, which is not only conducive to reducing material costs and promoting the achievement of lightweight indicators, but also by staggering the inner plate welds and the reinforcement plate welds in the width direction of the vehicle body, the overall structural stability of the side door ring can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the front structure of a side door ring provided by an embodiment of the utility model;

[0020] Figure 2 This is a front view structural diagram of a door ring inner plate used in an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the exploded structure of the door ring inner plate used in the embodiment of the utility model;

[0022] Figure 4 A front view structural diagram of a door ring reinforcement plate used in an embodiment of the utility model;

[0023] Figure 5 The exploded structure diagram of the door ring reinforcement plate used in the embodiment of the utility model is shown.

[0024] In the figure: 10, door knocker inner plate; 11, A-pillar inner plate lower section; 12, A-pillar inner plate upper section; 121, first joint; 13, B-pillar inner plate upper section; 14, B-pillar inner plate lower section; 15, door sill inner plate; 151, second joint; 16, first weld; 17, second weld; 20, door knocker reinforcement plate; 21, A-pillar reinforcement plate upper section; 22, A-pillar reinforcement plate lower section; 23, door sill reinforcement plate; 24, B-pillar reinforcement plate lower joint; 241, third connecting section; 242, fourth connecting section; 25, B-pillar reinforcement plate upper section; 26, A-pillar reinforcement plate upper joint; 261, first connecting section; 262, second connecting section; 27, third weld; 28, fourth weld; 30, inner plate weld; 40, reinforcement plate weld; 50, patch plate. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] It should be noted that when an element is referred to as being "disposed on" or "connected to" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is 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. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0027] Please also read Figures 1 to 5 The side door ring provided by the utility model is now described. The side door ring comprises a door ring inner plate 10 and a door ring reinforcement plate 20 which are fastened and fixed to each other. The door ring inner plate 10 and the door ring reinforcement plate 20 both comprise multiple sections of thermoformed plates which are sequentially butt-jointed to form a ring. The adjacent thermoformed plates of the door ring inner plate 10 are welded to form an inner plate weld 30, and the adjacent thermoformed plates of the door ring reinforcement plate 20 are welded to form a reinforcement plate weld 40. The inner plate weld 30 and the reinforcement plate weld 40 are both continuous welds and are staggered in the width direction of the vehicle body.

[0028] It should be noted that hot-formed steel plate refers to a steel plate that is formed once after being heated to 950°C and then cooled quickly to improve the strength of the steel plate. Each square centimeter can withstand more than ten tons of pressure. When used in a vehicle body structure, the strength can be increased by about 30% without changing the weight of the vehicle body. Specifically, in this embodiment, a hot-formed plate with a yield strength of 1500Mpa can be used for the top of the side door ring, such as the upper section of the A-pillar and the upper section of the B-pillar, to improve the top pressure bearing capacity. A hot-formed plate with a yield strength of 1500Mpa can be used for the bottom of the side door ring, such as the side door sill, to ensure the frontal collision force transmission performance. At the same time, in order to ensure the collision energy absorption effect, a hot-formed plate with a yield strength of 1000Mpa can be used for the lower section of the A-pillar and the lower section of the B-pillar that are connected to the side door sill.

[0029] It should be understood that in this embodiment, adjacent thermoformed panels are fixed by continuous welds after being butted together. Specifically, laser welding can be used for welding. After welding, an integrated structure with high connection strength and good stability is formed. After welding, the thermoformed panels of the door ring inner plate 10 and the door ring reinforcement plate 20 are integrally stamped. Compared with the method of stamping first and then welding, the connection position accuracy between adjacent parts can be improved, and the problem of welding deformation can be avoided. At the same time, the number of stamping dies required is small, the development cost is lower, and because the overlapping materials are saved, it is conducive to weight reduction. After the door ring inner plate 10 and the door ring reinforcement plate 20 are processed as one-piece parts, they are buckled together and fixed by welding points.

[0030] Compared with the prior art, the side door ring provided in the present embodiment has a door ring inner panel 10 and a door ring reinforcement panel 20 respectively made of multiple sections of hot-formed panels, which are sequentially butted together to form a ring, and then the butted parts are welded and fixed by continuous welds. After welding, the door ring inner panel 10 and the door ring reinforcement panel 20 can be respectively stamped as a whole by a set of molds, thereby reducing the types of mold development and reducing production costs. At the same time, the butt joint between adjacent hot-formed panels and the continuous welding method can save overlapping materials compared with the overlap spot welding method, which is not only conducive to reducing material costs and promoting the achievement of lightweight indicators, but also the overall stamping method can ensure the relative position accuracy between each section of the hot-formed panel, thereby improving product quality. On this basis, by staggering the inner panel weld 30 and the reinforcement plate weld 40 in the width direction of the vehicle body, it can avoid that the butt joint positions on the door ring inner panel 10 and the door ring reinforcement panel 20 are in the same section and affect the overall structural strength, thereby improving the structural stability of the side door ring.

[0031] In some embodiments, see Figures 1 to 3The various sections of the thermoformed panels of the door ring inner panel 10 respectively form an A-pillar inner panel lower section 11 and an A-pillar inner panel upper section 12 that are butted up and down, a B-pillar inner panel upper section 13 and a B-pillar inner panel lower section 14 that are butted up and down, and a sill inner panel 15; wherein, the lower end of the A-pillar inner panel lower section 11 is bent backward and butted with the front end of the sill inner panel 15, the A-pillar inner panel upper section 12 extends backward at an angle and butted up and down with the upper end of the B-pillar inner panel upper section 13, and the B-pillar inner panel lower section 14 is butted with the upper edge of the rear end of the sill inner panel 15.

[0032] Taking into account the different strength requirements of each part, the door ring inner panel 10 is divided into four sections and connected in sequence. Considering the top pressure bearing performance, the four joints between the A-pillar inner panel upper section 12 and the A-pillar inner panel lower section 11, between the A-pillar inner panel upper section 12 and the B-pillar inner panel upper section 13, between the B-pillar inner panel upper section 13 and the B-pillar inner panel lower section 14, and between the B-pillar inner panel lower section 14 and the rear end upper edge of the sill inner panel 15 are all connected up and down using horizontal or nearly horizontal inner panel welds 30. At the same time, considering the head-on collision force transmission performance, the above-mentioned A-pillar inner panel lower section 11 forms an L-shaped structure based on its rearward bent lower end area, and forms a vertical or nearly vertical inner panel weld 30 with the front end of the sill inner panel 15, thereby enhancing the contribution of the door ring inner panel 10 to the structural strength of the side door ring.

[0033] For details, please refer to Figures 1 to 3 The upper section 12 of the A-pillar inner panel extends backwards obliquely to the rear side of the upper section 13 of the B-pillar inner panel and forms a first joint 121, which is used to connect with peripheral parts to form a first weld 16; the rocker inner panel 15 extends backwards to the rear side of the lower section 14 of the B-pillar inner panel and forms a second joint 151, which is used to connect with peripheral parts to form a second weld 17. By reserving joints for connecting with peripheral parts such as the vehicle body top beam and the rear section of the rocker beam on the upper section 12 of the A-pillar inner panel and the rocker inner panel 15, it is convenient to splice with the peripheral parts later. At the same time, by using the first joint 121 located at the rear side of the upper section 13 of the B-pillar inner panel and the second joint 151 located at the rear side of the lower section 14 of the B-pillar inner panel, the first weld 16 and the second weld 17 formed by the connection between the door ring inner panel 10 and the peripheral parts can be staggered with the front and rear of the B-pillar, thereby avoiding the stress fracture of the weld position and improving the structural stability.

[0034] As a specific embodiment of the door ring reinforcement plate 20, please refer to Figure 1 , Figure 4 and Figure 5The various hot-formed plate sections of the door knocker reinforcement plate 20 respectively form an A-pillar reinforcement plate upper section 21 and an A-pillar reinforcement plate lower section 22, a door sill reinforcement plate 23, a B-pillar reinforcement plate lower joint 24, a B-pillar reinforcement plate upper section 25, and an A-pillar reinforcement plate joint 26 that are butted up and down; wherein, the lower end of the A-pillar reinforcement plate lower section 22 is bent backward and butted front and back with the door sill reinforcement plate 23; one end of the A-pillar reinforcement plate upper section 21 is butted up and down with the upper end of the A-pillar reinforcement plate lower section 22, and the other end extends obliquely backward and butted front and back with the A-pillar reinforcement plate upper joint 26; the A-pillar reinforcement plate joint 26 is butted up and down with the B-pillar reinforcement plate upper section 25; the B-pillar reinforcement plate lower joint 24 is butted front and back with the door sill reinforcement plate 23, and butted up and down with the B-pillar reinforcement plate upper section 25.

[0035] Considering the different strength requirements of the various parts of the side door ring, and considering the misalignment distribution of the reinforcement plate weld 40 and the inner plate weld 30, the door ring reinforcement plate 20 is divided into six sections and connected in sequence. Considering the top pressure bearing performance, the three joints between the upper section 21 of the A-pillar reinforcement plate and the lower section 22 of the A-pillar reinforcement plate, the upper section 25 of the B-pillar reinforcement plate and the joint 26 of the A-pillar reinforcement plate and the lower joint 24 of the B-pillar reinforcement plate are all connected up and down with the horizontal or nearly horizontal inner plate weld 30; at the same time, considering the head-on collision Force transmission performance, the above-mentioned A-pillar reinforcement plate lower section 22 forms an L-shaped structure based on its lower end area bent backward, and forms a vertical or nearly vertical reinforcement plate weld 40 between the front end of the rocker reinforcement plate 23; in addition, vertical or nearly vertical reinforcement plate welds 40 are formed between the A-pillar reinforcement plate upper joint 26 and the rear end of the A-pillar reinforcement plate upper section 21, and between the B-pillar reinforcement plate lower joint 24 and the rear end of the rocker reinforcement plate 23, thereby enhancing the contribution of the door ring reinforcement plate 20 to the strength of the side door ring structure.

[0036] For some possible implementations, see Figure 1 and Figure 5 The joint 26 on the A-pillar reinforcement plate includes a first connection section 261 extending forward and backward and docking with the upper section 21 of the A-pillar reinforcement plate, and a second connection section 262 extending downward from the middle of the first connection section 261 and docking with the upper section 25 of the B-pillar reinforcement plate; the rear end of the first connection section 261 is used to dock with surrounding parts to form a third weld 27, and the third weld 27 and the first weld 16 are staggered along the width direction of the vehicle body.

[0037] The first connecting section 261 and the second connecting section 262 form a T-shaped structure, so that the first connecting section 261 extending forward and backward can be used to form a vertical or nearly vertical reinforcement plate weld 40 with the rear end of the A-pillar reinforcement plate upper section 21, thereby ensuring the head-on force transmission effect at the top of the door ring reinforcement plate 20, and facilitating the docking and fixing of the rear end of the first connecting section 261 with the surrounding parts, and at the same time, the lower end of the second connecting section 262 can be used to dock with the upper end of the B-pillar reinforcement plate upper section 25. In addition, by staggering the third weld 27 and the first weld 16, it is possible to avoid the joints between the door ring inner plate 10 and the door ring reinforcement plate 20 and the surrounding parts being in the same section, thereby improving the connection stability between the side door ring and the surrounding parts.

[0038] Similarly, see Figure 1 and Figure 5 The above-mentioned B-pillar reinforcement plate lower joint 24 includes a third connecting section 241 extending frontward and rearward and docking with the rocker reinforcement plate 23, and a fourth connecting section 242 extending upward from the middle of the third connecting section 241 and docking with the upper section 25 of the B-pillar reinforcement plate; the rear end of the fourth connecting section 242 is used to dock with surrounding parts to form a fourth weld 28, and the fourth weld 28 and the second weld 17 are staggered along the width direction of the vehicle body.

[0039] The third connecting section 241 and the fourth connecting section 242 form an inverted T-shaped structure, so that a vertical or nearly vertical reinforcing plate weld 40 can be formed between the third connecting section 241 and the rear end of the door sill reinforcing plate 23, thereby ensuring the positive collision force transmission effect at the bottom of the door ring reinforcing plate 20, and at the same time, a horizontal or nearly horizontal reinforcing plate weld 40 can be formed between the fourth connecting section 242 and the lower end of the upper section 25 of the B-pillar reinforcing plate, thereby improving the top pressure bearing capacity; on this basis, the rear end of the third connecting section 241 is connected to the peripheral parts to form the fourth weld 28, so that the fourth weld 28 and the upper section 13 of the B-pillar inner plate can be dislocated front and back, thereby reducing the risk of fracture failure in the weld area due to concentrated force, and improving the stability of the connection structure between the door ring reinforcing plate 20 and the peripheral parts; in addition, by displacing the fourth weld 28 with the second weld 17, it is possible to avoid that the joints of the door ring inner plate 10 and the door ring reinforcing plate 20 with the peripheral parts are in the same section, further improving the connection stability between the side door ring and the peripheral parts.

[0040] In some embodiments, in order to improve the top pressure performance of the side door ring, Figure 2 and Figure 4 A patch plate 50 is provided on the inner side of the upper section 25 of the B-pillar reinforcement plate, the upper end of the patch plate 50 extends to the top of the upper section 25 of the B-pillar reinforcement plate and overlaps with the joint 26 on the A-pillar reinforcement plate, and the upper boundary of the patch plate 50 is located above the upper boundary of the upper section 13 of the B-pillar inner plate.

[0041] On the basis of the patch plate 50 structurally reinforcing the upper section 25 of the B-pillar reinforcement plate, the top of the patch plate 50 is overlapped and fixed with the joint 26 on the A-pillar reinforcement plate (specifically the lower end of the second connecting section 262). The patch plate 50 can be used to transmit force between the joint 26 on the A-pillar reinforcement plate and the upper section 25 of the B-pillar reinforcement plate, thereby improving the anti-top pressure capability of the top of the door ring reinforcement plate 20. On this basis, the upper boundary of the patch plate 50 is higher than the upper boundary of the upper section 13 of the B-pillar inner plate, which can avoid the upper end of the patch plate 50 and the inner plate weld 30 located at the top of the upper section 13 of the B-pillar inner plate being in the same section, thereby improving the anti-top pressure capability and structural stability of the overall structure of the side door ring.

[0042] It should be noted that, in this embodiment, the strength grade of the patch plate 50 is higher than that of the B-pillar reinforcement plate upper section 25; the strength grade of the B-pillar reinforcement plate upper section 25, the A-pillar reinforcement plate upper joint 26, the A-pillar reinforcement plate upper section 21, the door sill reinforcement plate 23, the A-pillar inner panel upper section 12, the B-pillar inner panel upper section 13, and the door sill inner panel 15 is higher than that of the B-pillar reinforcement plate lower joint 24, the A-pillar reinforcement plate lower section 22, the A-pillar inner panel lower section 11, and the B-pillar inner panel lower section 14.

[0043] The patch plate 50 adopts a thermoformed plate with a yield strength of 2000Mpa, so as to improve the anti-top pressure ability of the top of the side door ring. At the same time, in order to ensure the collision deformation energy absorption effect, the B-pillar reinforcement plate lower joint 24, the A-pillar reinforcement plate lower section 22, the A-pillar inner panel lower section 11, and the B-pillar inner panel lower section 14 located at the bottom of the side inner ring are made of thermoformed plates with a yield strength of 1000Mpa, so as to improve the collision safety protection performance. The remaining parts include the B-pillar reinforcement plate upper section 25; the B-pillar reinforcement plate upper section 25, the A-pillar reinforcement plate joint 26, the A-pillar reinforcement plate upper section 21, the door sill reinforcement plate 23, the A-pillar inner panel upper section 12, the B-pillar inner panel upper section 13, and the door sill inner panel 15 are all made of thermoformed plates with a yield strength of 1000Mpa to ensure reliable collision or top pressure force transmission effect.

[0044] It should be noted that, in some embodiments, the offset distance between the inner plate weld 30 and the reinforcing plate weld 40 is greater than 100 mm. Setting a safe offset distance of more than 100 mm between the inner plate weld 30 and the reinforcing plate weld 40 can prevent the inner plate weld 30 and the reinforcing plate weld 40 from being in the same stress section, thereby improving the overall structural stability.

[0045] Optionally, in this embodiment, the thickness of the door ring inner plate 10 is less than or equal to the thickness of the door ring reinforcement plate 20. Since the door ring inner plate 10 is located on the inner side of the door ring reinforcement plate 20, the door ring inner plate 10 is not a direct force-bearing surface when a collision occurs. Therefore, the door ring inner plate 10 can be made of a thinner thermoformed plate relative to the door ring reinforcement plate 20, thereby promoting the achievement of the vehicle body lightweight index on the basis of ensuring structural strength.

[0046] Based on the same inventive concept, Figures 1 to 5 It is understood that an embodiment of the present application also provides a vehicle, including the above-mentioned side door knocker.

[0047] Compared with the prior art, the vehicle provided in this embodiment adopts the above-mentioned side door ring, and the door ring inner panel 10 and the door ring reinforcement plate 20 are respectively made of multi-section hot-formed plates, which are sequentially butt-jointed into rings and then the butt joints are welded and fixed by continuous welds. After welding, the door ring inner panel 10 and the door ring reinforcement plate 20 are respectively stamped as a whole by a set of molds, which is not only conducive to reducing material costs and promoting the achievement of lightweight indicators, but also by staggering the inner panel weld 30 and the reinforcement plate weld 40 in the width direction of the vehicle body, the overall structural stability of the side door ring can be improved.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Side door knocker, characterized in that: It comprises a door ring inner plate (10) and a door ring reinforcement plate (20) which are interlocked and fixed, and the door ring inner plate (10) and the door ring reinforcement plate (20) both comprise a plurality of sections of thermoformed plates which are sequentially connected to form a ring; adjacent thermoformed plates of the door ring inner plate (10) are welded to form an inner plate weld (30), and adjacent thermoformed plates of the door ring reinforcement plate (20) are welded to form a reinforcement plate weld (40); wherein the inner plate weld (30) and the reinforcement plate weld (40) are both continuous welds and are staggered in the width direction of the vehicle body.

2. The side door knocker according to claim 1, characterized in that: The various sections of the thermoformed plate of the door ring inner panel (10) respectively form an A-pillar inner panel lower section (11) and an A-pillar inner panel upper section (12) that are butted up and down, a B-pillar inner panel upper section (13) and a B-pillar inner panel lower section (14) that are butted up and down, and a door sill inner panel (15); wherein the lower end of the A-pillar inner panel lower section (11) is bent backward and butted with the front end of the door sill inner panel (15), the A-pillar inner panel upper section (12) extends backward and butted up and down with the upper end of the B-pillar inner panel upper section (13), and the B-pillar inner panel lower section (14) is butted with the upper edge of the rear end of the door sill inner panel (15).

3. The side door knocker according to claim 2, characterized in that: The A-pillar inner panel upper section (12) extends backwards obliquely to the rear side of the B-pillar inner panel upper section (13) and forms a first joint (121), wherein the first joint (121) is used to connect with peripheral parts to form a first weld (16); the rocker inner panel (15) extends backwards to the rear side of the B-pillar inner panel lower section (14) and forms a second joint (151), wherein the second joint (151) is used to connect with peripheral parts to form a second weld (17).

4. The side door knocker according to claim 3, characterized in that: The various sections of the thermoformed plate of the door knocker reinforcement plate (20) respectively form an A-pillar reinforcement plate upper section (21) and an A-pillar reinforcement plate lower section (22), a door sill reinforcement plate (23), a B-pillar reinforcement plate lower joint (24), a B-pillar reinforcement plate upper section (25), and an A-pillar reinforcement plate upper joint (26) which are butt-jointed up and down; wherein the lower end of the A-pillar reinforcement plate lower section (22) is bent backward and butt-jointed front and back with the door sill reinforcement plate (23); one end of the A-pillar reinforcement plate upper section (21) is butt-jointed up and down with the upper end of the A-pillar reinforcement plate lower section (22), and the other end extends obliquely backward and butt-jointed front and back with the A-pillar reinforcement plate joint (26); the A-pillar reinforcement plate upper joint (26) is butt-jointed up and down with the B-pillar reinforcement plate upper section (25); the B-pillar reinforcement plate lower joint (24) is butt-jointed front and back with the door sill reinforcement plate (23), and is butt-jointed up and down with the B-pillar reinforcement plate upper section (25).

5. The side door knocker according to claim 4, characterized in that: The A-pillar reinforcement plate upper joint (26) comprises a first connection section (261) extending forward and backward and connected to the A-pillar reinforcement plate upper section (21), and a second connection section (262) extending downward from the middle of the first connection section (261) and connected to the B-pillar reinforcement plate upper section (25); the rear end of the first connection section (261) is used to connect with peripheral parts to form a third weld (27), and the third weld (27) and the first weld (16) are staggered along the width direction of the vehicle body; the B-pillar reinforcement plate lower joint (24) comprises a third connection section (241) extending forward and backward and connected to the rocker reinforcement plate (23), and a fourth connection section (242) extending upward from the middle of the third connection section (241) and connected to the B-pillar reinforcement plate upper section (25); the rear end of the fourth connection section (242) is used to connect with peripheral parts to form a fourth weld (28), and the fourth weld (28) and the second weld (17) are staggered along the width direction of the vehicle body.

6. The side door knocker according to claim 4, characterized in that: A patch plate (50) is provided on the inner side of the upper section (25) of the B-pillar reinforcement plate, the upper end of the patch plate (50) extends to above the upper section (25) of the B-pillar reinforcement plate and overlaps with the upper joint (26) of the A-pillar reinforcement plate, and the upper boundary of the patch plate (50) is located above the upper boundary of the upper section (13) of the B-pillar inner plate.

7. The side door knocker according to claim 6, characterized in that: The patch plate (50) has a higher strength grade than the upper section of the B-pillar reinforcement plate (25); the B-pillar reinforcement plate upper section (25), the A-pillar reinforcement plate upper joint (26), the A-pillar reinforcement plate upper section (21), the door sill reinforcement plate (23), the A-pillar inner plate upper section (12), the B-pillar inner plate upper section (13), and the door sill inner plate (15) have a higher strength grade than the B-pillar reinforcement plate lower joint (24), the A-pillar reinforcement plate lower section (22), the A-pillar inner plate lower section (11), and the B-pillar inner plate lower section (14).

8. The side door knocker according to any one of claims 1 to 7, characterized in that: The offset distance between the inner plate weld (30) and the reinforcing plate weld (40) is greater than 100 mm.

9. The side door knocker according to any one of claims 1 to 7, characterized in that: The thickness of the door ring inner plate (10) is less than or equal to the thickness of the door ring reinforcement plate (20).

10. A vehicle, characterized in that It comprises a side door knocker as described in any one of claims 1 to 9.

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