Hinge reinforcement plate structure, vehicle door and vehicle

Abstract

The application provides a hinge reinforcing plate structure, a vehicle door and a vehicle, and belongs to the technical field of vehicle doors, wherein the hinge reinforcing plate structure comprises a hinge reinforcing plate body, a fitting part and a drainage part; the fitting part is arranged on the hinge reinforcing plate body, the fitting part in the middle part of the hinge reinforcing plate body is tightly fitted with the inner plate of the vehicle door to form a sealing structure, the gap between the hinge reinforcing plate body and the inner plate of the vehicle door is divided into an upper gap and a lower gap, a slanted flow guide surface is formed at the upper end of the fitting part, water located in the upper gap is discharged through the flow guide surface, water in the upper layer of the fitting part is prevented from entering the fitting part to cause metal corrosion, the drainage part is arranged below the fitting part to make water below the fitting part discharged through the drainage channel, and the cooperation of the flow guide surface and the drainage channel solves the problem that water accumulation between the hinge reinforcing plate body and the inner plate of the vehicle door causes corrosion.

Description

Technical Field

[0001] This application belongs to the field of automotive door technology, and more specifically, relates to a hinge reinforcement plate structure, automotive door, and vehicle. Background Technology

[0002] In the automotive industry, lightweight door design requires consideration and optimization from multiple aspects, including structure, material selection, integrated design, and manufacturing processes, to achieve the goals of reducing weight, improving performance, and lowering costs. While focusing on lightweight door design, it is also necessary to emphasize rust prevention and to rationally design the door's drainage system to ensure that rainwater can be smoothly discharged from the door's interior, preventing water accumulation.

[0003] Traditional hinge reinforcement plates are fixed to the inner door panel by welding, which requires high installation precision. After the vehicle is rained on, water can easily accumulate in certain areas of the door hinge reinforcement plate, making it difficult to effectively control the risk of sheet metal corrosion caused by water accumulation. In addition, there is no water flow channel on the hinge reinforcement plate, which causes poor water flow and water accumulation problems, and also affects the electrophoretic exhaust. Utility Model Content

[0004] The purpose of this application is to provide a hinge reinforcement plate structure, a car door, and a vehicle, which aims to solve the problem of poor drainage in the hinge reinforcement plate.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, embodiments of this application provide a hinge reinforcement plate structure, including: The hinge reinforcement plate body is located on one side of the inner panel of the door; the lower part of the hinge reinforcement plate body has a limiter mounting part; The fitting part is located in the middle of the hinge reinforcing plate body and is located above the limiter mounting part; the fitting part is fitted and glued to the inner panel of the door, and the upper end surface of the fitting part forms an inclined guide surface; A drainage portion is provided below the fitting portion. The drainage portion is located on one side of the limiter mounting portion. The drainage portion extends longitudinally to the lower end of the hinge reinforcement plate body. The drainage portion and the inner panel of the door are spaced apart to form a drainage channel.

[0006] Compared to existing technologies, the hinge reinforcement plate structure of this application features a bonding portion in the middle of the hinge reinforcement plate body. This bonding portion is used to adhere to the inner door panel, forming a stable contact surface. The bonding portion is then bonded to the inner door panel using adhesive, thus fixing the hinge reinforcement plate body to the inner door panel. The adhesive layer between the bonding portion and the inner door panel forms a sealing structure, dividing the gap between the hinge reinforcement plate and the inner door panel into an upper gap and a lower gap. The upper gap is located above the adhesive layer, and the lower gap is located below it. The sealed adhesive layer isolates water from the upper part of the door interior to the upper gap, preventing water from flowing through the bonding portion into the lower gap and causing sheet metal corrosion.

[0007] The beneficial effects of the hinge reinforcement plate structure provided in this application are as follows: the bonding part is fixed to the middle of the hinge reinforcement plate body by adhesive to form an inclined guide surface, which allows water in the upper gap to drain smoothly and avoids water accumulation in the bonding area; at the same time, the drainage channel can quickly drain water in the lower gap, preventing water accumulation in the lower gap; the cooperation of the guide surface and the drainage channel solves the problem of water accumulation and corrosion between the hinge reinforcement plate body and the inner door panel. In addition, the drainage channel formed by the drainage part also facilitates gas discharge during electrophoresis, ensuring the integrity and uniformity of the coating on the sheet metal surface, thereby improving the overall corrosion resistance and service life of the door.

[0008] In one possible implementation, the bonding portion is provided with welding points for fixing the bonding portion and the inner door panel together. The solder joints include: The end weld points are located at both ends along the length of the mating portion; The central solder joint is located at the middle of the length direction of the bonding portion.

[0009] In the above technical solution, during installation, the bonding part is first fixed to the inner door panel using an adhesive layer, and then the welding points are welded for fixation. Welding, as a fixing connection method, can strengthen the connection strength between the bonding part and the inner door panel, thereby improving structural durability; at the same time, the adhesive layer prevents the welding points from contacting water. By applying welding points at the ends and the middle, not only is the connection strength of the hinge reinforcement plate guaranteed, but the time-consuming and labor-intensive problem of traditional welding with numerous welding points is also avoided.

[0010] In one possible implementation, the bonding portion includes: Multiple planar segments are fitted onto multiple mating surfaces of the inner door panel; adjacent planar segments are connected by an arc-shaped transition segment. The central weld point is located on one or more of the planar segments.

[0011] In the above technical solution, welding points are set on the planar segment, which strengthens the connection strength of the planar segment and facilitates construction.

[0012] In one possible implementation, a recessed mark is provided on the outer wall of the bonding portion, the recessed mark being used to indicate the adhesive application direction and position of the bonding portion.

[0013] In the above technical solution, the concave mark ensures the accuracy of adhesive application by providing precise guidance, avoiding gaps in the bonding part due to adhesive application deviation, and ensuring the rust prevention effect; at the same time, the concave mark reduces the difficulty of adhesive application and makes the assembly process more standardized.

[0014] In one possible implementation, the limiter mounting portion includes: A fixing part is provided, which is spaced apart from the inner panel of the door to form an installation space; A water guiding part connects the fixing part and the drainage part. The water guiding part protrudes to the side away from the inner panel of the door. The water guiding part and the inner panel of the door form a water guiding channel. The water guiding channel connects the installation space and the drainage channel.

[0015] In the above technical solution, water that seeps into the installation space can flow naturally along the water guide to the drainage channel, solving the problem of water accumulation in the installation space. At the same time, during the electrophoresis process, the interconnected cavity formed by the water guide channel, the drainage channel, and the installation space allows the electrophoretic liquid to fill the concealed area more evenly, while promoting gas discharge and avoiding coating leakage caused by gas retention. This ensures that a complete and uniform electrophoretic coating is formed on the sheet metal surface of the limiter installation area, further improving corrosion resistance and extending the product's service life.

[0016] In one possible implementation, the hinge reinforcement plate body has an upper weight reduction hole and a lower weight reduction hole, with the upper weight reduction hole located above the fitting part and the lower weight reduction hole located below the fitting part.

[0017] In the above technical solution, weight-reducing holes are set around the fitting part and the drainage channel to reduce the weight of the hinge reinforcement plate, thereby achieving the goal of lightweighting the hinge reinforcement plate; and thus reducing the overall weight of the car door, achieving low-cost lightweighting from a structural perspective. The upper and lower weight-reducing holes work together to make the weight distribution of the hinge reinforcement plate more even, avoiding the problem of local weakness.

[0018] In one possible implementation, there are multiple upper-layer weight-reducing holes, which are spaced apart along the extension direction of the bonding portion.

[0019] In the above technical solution, the upper-layer weight-reducing holes are arranged at intervals along the length of the mating part, and each upper-layer weight-reducing hole corresponds to one of the multiple planar segments. The multiple upper-layer weight-reducing holes arranged at intervals avoid local weakness caused by a single opening; and the multiple upper-layer weight-reducing holes and the unopened area are alternately arranged to form a support structure, making the hinge reinforcement plate body more evenly stressed.

[0020] In one possible implementation, the lower weight reduction hole is located on the side of the drainage portion away from the limiter mounting portion.

[0021] In the above technical solution, the limiter mounting part located on the other side of the drainage part is provided with mounting holes. The mounting holes and the lower weight reduction holes are distributed on both sides of the drainage part, so that the overall weight distribution of the hinge reinforcement plate is more balanced.

[0022] Secondly, this application provides a car door that adopts the aforementioned hinge reinforcement plate structure.

[0023] The beneficial effects of the car door provided in this application are as follows: Compared with the prior art, it has all the beneficial effects of the above-mentioned hinge reinforcement plate structure. The guide surface of the hinge reinforcement plate in the car door guides the rainwater to flow in a specific direction and blocks the rainwater from seeping into the fitting part. At the same time, in conjunction with the drainage channel, all the rainwater in the hinge reinforcement plate can be discharged, avoiding the problem of water accumulation and rust in the sheet metal inside the car door. Moreover, the combination of the drainage channel and the weight reduction hole improves the venting effect during electrophoresis and improves the uniformity of the electrophoretic coating of the car door. By opening the weight reduction hole in the hinge reinforcement plate, a lightweight design is achieved, while reducing the overall weight of the car door.

[0024] Thirdly, embodiments of this application provide a vehicle that employs the aforementioned hinge reinforcement plate structure.

[0025] The beneficial effects of the vehicle provided in this application are as follows: compared with the prior art, it has all the beneficial effects of the above-mentioned hinge reinforcement plate structure, solves the problems of water accumulation and rust on vehicle doors, heavy weight and complex assembly, improves the reliability and durability of the vehicle by strengthening the drainage effect and rust prevention performance of the hinge reinforcement plate, and reduces the maintenance cost of the vehicle. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the connection structure between the hinge reinforcement plate structure and the inner panel of the car door provided in an embodiment of this application; Figure 2 This is a schematic diagram of the hinge reinforcement plate structure provided in the embodiments of this application; Figure 3 A schematic diagram of the water flow direction of the hinge reinforcement plate structure provided in the embodiments of this application.

[0028] In the diagram: 1. Inner door panel; 2. Hinge reinforcement plate body; 3. Fitting part; 4. Upper weight reduction hole; 5. Drainage part; 6. Limiter mounting part; 7. Lower weight reduction hole; 8. End weld point; 9. Middle weld point; 10. Water guide part. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a few" means two or more, unless otherwise explicitly specified.

[0032] It should be noted that the directions or positional relationships indicated by "front", "rear", "inner", "outer", "up", and "down" in this embodiment are based on the vehicle's own orientation. The front of the vehicle represents "front", the rear of the vehicle represents "rear", the top of the vehicle represents "up", and the bottom of the vehicle represents "down". "Inner" side refers to the side facing the driver's cab, and "outer" side refers to the side facing out of the driver's cab.

[0033] In addition, the front-rear direction of the vehicle body as defined in the embodiments of this application refers to the front-rear direction of the vehicle's forward direction during driving; the left-right direction of the vehicle body as defined refers to the left-right direction of the vehicle's forward direction during driving; and the up-down direction of the vehicle body as defined refers to the up-down direction of the vehicle's forward direction during driving.

[0034] Please refer to the following: Figures 1 to 3 The hinge reinforcement plate structure, door, and vehicle provided in this application are described below. The hinge reinforcement plate structure includes a hinge reinforcement plate body 2, an adhesive part 3, and a drainage part 5. The hinge reinforcement plate body 2 is located on one side of the inner panel 1 of the door. The lower part of the hinge reinforcement plate body 2 has a limiter mounting part 6. The adhesive part 3 is located in the middle of the hinge reinforcement plate body 2 and is located above the limiter mounting part 6. The adhesive part 3 is adhered to and glued to the inner panel 1 of the door, and the upper end surface of the adhesive part 3 forms an inclined drainage surface. The drainage part 5 is located below the adhesive part 3 and is located on one side of the limiter mounting part 6. The drainage part 5 extends longitudinally to the lower end of the hinge reinforcement plate body 2, and the drainage part 5 and the inner panel 1 are spaced apart to form a drainage channel.

[0035] Traditionally, the hinge reinforcement plate body 2 is fixed to the inner panel 1 of the door by welding. High-precision positioning is required to ensure the assembly effect, and the welding points are prone to forming gaps or protrusions, becoming dead corners for water accumulation.

[0036] The hinge reinforcement plate structure provided in this application has a bonding part 3 in the middle of the hinge reinforcement plate body 2. The bonding part 3 is used to bond to the inner panel 1 of the door to form a stable contact surface; Figure 3 As shown, the fitting part 3 is an inclined strip-shaped area. During installation, the fitting part 3 can be glued to the inner door panel 1, so that the hinge reinforcement plate body 2 is fixed to the inner door panel 1.

[0037] The adhesive layer between the bonding part 3 and the inner door panel 1 forms a sealing structure, dividing the gap between the hinge reinforcement plate and the inner door panel 1 into an upper gap and a lower gap. The upper gap is located above the adhesive layer, and the lower gap is located below the adhesive layer. The sealed adhesive layer isolates water from the upper part of the door interior to the upper gap, preventing water from flowing through the bonding part 3 into the lower gap and causing sheet metal corrosion.

[0038] The limiter mounting part 6 is located below the fitting part 3. The sealing structure formed by the fitting part 3 and the adhesive layer covers the upper part of the limiter mounting part 6, preventing water in the upper gap from flowing through the fitting part 3 into the limiter mounting part 6, which causes the limiter mounting part 6 to rust.

[0039] The upper end of the bonding part 3 has an inclined trajectory, so that the bonding part 3 and its inner adhesive layer cooperate to form an inclined surface. This inclined surface closes the upper gap and forms a guide surface. The guide trajectory of the guide surface is as follows: Figure 3As shown in the diagram, when water enters the upper gap from above, it flows downwards until it is blocked by the sealing adhesive layer. Then, the water flows downwards along the inclined guide surface until it is smoothly discharged, effectively preventing localized water accumulation and corrosion in the bonding area 3 due to uncontrolled water flow. The inclined guide surface directs the water flow in a specific direction, preventing it from flowing in other directions and avoiding water overflow that could flood other areas.

[0040] In addition, the adhesive layer is used to tightly bond the mating part 3 and the inner door panel 1 to prevent water accumulation. At the same time, it prevents water from coming into contact with the mating part 3 and prevents rust from forming in the contact area between the hinge reinforcement plate and the inner door panel 1.

[0041] Specifically, when applying the adhesive, it is necessary to ensure that the adhesive layer is continuous and of uniform thickness. Structural adhesive can be used for the adhesive layer.

[0042] For the lower gap of the hinge reinforcement plate, a drainage section 5 is provided on the hinge reinforcement plate body 2. The drainage section 5 protrudes towards the side away from the inner door panel 1, forming a longitudinal drainage channel between the drainage section 5 and the inner side of the door, extending to the lower end of the hinge reinforcement plate body 2. Water accumulated in the lower gap and the area of ​​the limiter mounting part 6 can be drained downward through the drainage channel. The drainage direction of the drainage channel is as follows: Figure 3 As shown in the image.

[0043] Furthermore, in the electrophoresis process, the drainage channel formed between the drainage section 5 and the inner door panel 1 can be used for airflow. When the electrophoretic liquid is filled, the generated gas can be quickly discharged through the drainage channel, preventing gas from stagnating in the sheet metal gaps, thereby ensuring that the electrophoretic coating can evenly cover the surface of the sheet metal and improve the rust prevention effect.

[0044] The hinge reinforcement plate structure provided in this application has the following advantages compared with the prior art: (1) The bonding part 3 is fixed to the middle of the hinge reinforcement plate body 2 by adhesive to form an inclined guide surface, so that the water in the upper gap can be discharged smoothly and water accumulation in the bonding part 3 area can be avoided; at the same time, the drainage channel can quickly discharge the water in the lower gap and avoid water accumulation in the lower gap; the combination of the guide surface and the drainage channel completely solves the problem of water accumulation and corrosion between the hinge reinforcement plate body 2 and the inner panel of the door.

[0045] (2) The continuous adhesive layer fixes the bonding part 3 and the inner panel 1 of the door, which improves the installation efficiency; and the adhesive layer forms a sealing structure, which ensures the sealing effect and the integrity of the guide surface, and avoids the problem of local water accumulation.

[0046] (3) The drainage channel formed by the drainage section 5 not only facilitates drainage and avoids water accumulation in the lower gap and limiter installation section 6, but also facilitates gas discharge during electrophoresis. During electrophoresis, the drainage channel can serve as an exhaust path to allow electrophoretic gas to be discharged quickly, ensuring that the coating on the sheet metal surface is complete and uniform, thereby improving the overall corrosion resistance and service life of the door.

[0047] Optionally, traditional welded structures may have gaps, allowing some water to enter and causing the bonding part 3 and the inner door panel 1 to rust. In this solution, the inner side of the bonding part 3 has a continuous adhesive layer, which forms a complete sealing surface between the bonding part 3 and the inner door panel 1. When rainwater flows along the guide surface, it cannot seep into the contact surface between the bonding part 3 and the inner door panel 1, thus solving the water seepage path between the bonding part and the inner door panel 1 and ensuring that all water in the upper gap is led out through the guide surface.

[0048] In addition, the continuous adhesive layer can achieve large-area bonding between the bonding part 3 and the inner door panel 1. Compared with the point fixing of traditional welding, the force is more uniform and the fixing stability is stronger.

[0049] See Figure 3 The angle between the bonding part 3 and the horizontal plane is 5°~10°. The overall bonding width of the adhesive layer on the inner side of the bonding part 3 is 20±2mm.

[0050] After the water flows into the bonding part 3, it flows downward at a stable speed along the inclined direction under the influence of the gravitational force at an angle of 5° to 10°, and will not splash out due to excessively fast flow or stagnate due to excessively slow flow.

[0051] The bonding width of the adhesive layer provides ample bonding area, and the continuous contact surface of the adhesive layer ensures its connection strength and sealing effect, preventing water from seeping into the contact surface from the edge of the adhesive layer and ensuring that the water flows out along the guide surface.

[0052] In some embodiments, see Figure 1 The bonding part 3 is provided with welding points, which are used to fix the bonding part 3 and the inner door panel 1. The welding points include end welding points 8 and middle welding points 9. The end welding points 8 are located at both ends of the bonding part 3 in the length direction. The middle welding points 9 are located in the middle of the bonding part 3 in the length direction.

[0053] During installation, the adhesive layer is first used to fix the bonding part 3 to the inner door panel 1, and then the welding points are welded to secure it. Welding, as a fixing connection method, can strengthen the connection between the bonding part 3 and the inner door panel 1, thereby improving structural durability.

[0054] Specifically, an end weld point 8 is arranged at each end of the bonding portion 3 along its length. These end weld points 8 assist the adhesive layer, thereby ensuring a strong connection between the bonding portion 3 and the inner door panel 1. Furthermore, to enhance the connection strength between the middle of the bonding portion 3 and the inner door panel 1, at least one weld point is also provided in the middle of the bonding portion 3, forming a multi-point connection structure with the middle weld point 9 and the end weld points 8. The arrangement of these multiple weld points is consistent with the inclined direction of the bonding portion 3.

[0055] The end weld point 8 connects the hinge reinforcement plate body 2 and the inner door panel 1. It is used to directly transfer the lateral tension borne by the hinge to the inner door panel 1, avoid stress concentration in the middle of the fitting part 3, and reduce local stress overload. The end weld point 8 makes the two ends of the fitting part 3 tightly connected to the inner door panel 1. With the continuous adhesive layer, it blocks rainwater from seeping in from the gaps at both ends of the fitting part 3, thus improving the waterproof effect.

[0056] After the hinge is installed, a continuous vertical load is applied to the mating part 3 of the hinge reinforcement plate body 2. The central weld point 9 is located in the central area of ​​the mating part 3. It is used to strengthen the connection strength between the mating part 3 and the inner door panel 1, so as to support the hinge reinforcement plate body 2, prevent the mating part 3 from deforming, and at the same time ensure that the guide surface maintains a stable sealing effect, avoiding uneven changes in the guide surface, which would lead to water accumulation.

[0057] The adhesive layer and weld points are used for fixing, which reduces the precision required for the weld point positions, simplifies assembly, and improves assembly efficiency. By applying weld points at the ends and center, the connection strength of the hinge reinforcement plate is ensured, and the time-consuming and labor-intensive problem of traditional welding with numerous weld points is avoided.

[0058] In some embodiments, see Figures 1 to 3 The bonding part 3 includes multiple planar segments; the multiple planar segments are bonded to multiple mating surfaces of the inner door panel 1; adjacent two planar segments are connected by an arc-shaped transition segment; the central welding point 9 is located on one or more of the planar segments.

[0059] The inner door panel 1 is composed of multiple mating surfaces at different angles. The fitting part 3 has multiple planar segments, each corresponding to a mating surface of the inner door panel 1, so that the surfaces are bonded and fixed together by a continuous adhesive layer. A continuous adhesive layer is also required in the curved transition section to ensure a tight fit between the curved transition surface and the inner door panel 1. The curved transition section connects two adjacent planar segments, which not only prevents cracking and deformation at the bend but also promotes smooth water flow and ensures continuous drainage.

[0060] When there is only one central weld point 9, it is located on one of the planar segments; when there are multiple central weld points 9, they can be located on multiple planar segments. Setting weld points on planar segments strengthens the connection strength of the planar segments and facilitates construction.

[0061] Optionally, both the middle solder joint 9 and the end solder joint 8 are located in the middle of the width direction of the adhesive layer, and the solder joints are surrounded by an adhesive layer.

[0062] In some embodiments, a recessed mark is provided on the outer side wall of the bonding portion 3, the recessed mark being used to indicate the adhesive application direction and position of the bonding portion 3.

[0063] Intermittent recessed marks are provided on the outer wall of the bonding part 3. These recessed marks can be laser-engraved. The recessed marks clearly indicate the start and end directions, path, and core coverage area of ​​the adhesive application through line shapes, arrow shapes, or area markings, so as to improve the accuracy of adhesive layer application.

[0064] Given the structural feature of the bonding part 3, which includes multiple planar segments, recessed marks can be arranged at intervals along each planar segment to guide the application of adhesive to form a continuous and uninterrupted adhesive layer. This avoids adhesive omissions or breaks due to the turns of multiple planar segments, ensuring that the mating surface between each planar segment and the inner panel 1 of the door can be fully covered by the adhesive layer, thereby improving the sealing and fixing effect.

[0065] The recessed markings ensure the accuracy of adhesive application by providing precise guidance, preventing gaps in the bonding part 3 due to adhesive application deviations and ensuring rust prevention. At the same time, the recessed markings reduce the difficulty of adhesive application and make the assembly process more standardized.

[0066] In some embodiments, see Figures 1 to 3 The limiter mounting part 6 includes a fixing part and a water guiding part 10; the fixing part is spaced apart from the inner panel 1 of the door to form an installation space; the water guiding part 10 connects the fixing part and the drainage part 5, the water guiding part 10 protrudes to the side away from the inner panel 1 of the door, the water guiding part 10 and the inner panel 1 of the door form a water guiding channel, and the water guiding channel connects the installation space and the drainage channel.

[0067] The fixing part and the inner door panel 1 are spaced apart to form an installation space, providing an assembly base for the limiter. Because the fixing part has a through hole for installing the limiter, water can easily enter the installation space through the through hole, causing the sheet metal at the limiter location to rust and become exposed, affecting the quality of the hinge reinforcement plate.

[0068] In this application, a water guide portion 10 protruding from the side away from the inner door panel 1 forms a water guide channel with the inner door panel 1, thereby connecting the installation space with the drainage channel. Water that seeps into the installation space can flow naturally along the water guide portion 10 to the drainage channel, solving the problem of water accumulation in the installation space.

[0069] In addition, the water guiding channel, the drainage channel, and the installation space form a continuous cavity. During the electrophoresis process, the connected cavity allows the electrophoretic liquid to fill the hidden area more evenly, while promoting gas discharge and avoiding coating leakage caused by gas retention. This ensures that a complete and uniform electrophoretic coating is formed on the sheet metal surface of the limiter installation area, further improving corrosion resistance and extending the product's service life.

[0070] In some embodiments, see Figure 1 and Figure 2 The hinge reinforcement plate body 2 has an upper weight reduction hole 4 and a lower weight reduction hole 7. The upper weight reduction hole 4 is located above the fitting part 3; the lower weight reduction hole 7 is located below the fitting part 3.

[0071] Weight-reducing holes are provided around the fitting part 3 and the drainage channel to reduce the weight of the hinge reinforcement plate, thereby achieving the goal of lightweighting the hinge reinforcement plate; this, in turn, reduces the overall weight of the door, achieving low-cost lightweighting from a structural perspective. The upper weight-reducing holes 4 and the lower weight-reducing holes 7 work together to make the weight distribution of the hinge reinforcement plate more even, avoiding the problem of local weakness.

[0072] The upper weight-reducing hole 4 is located above the bonding part 3. Based on the flow of rainwater along the guide surface, the upper weight-reducing hole 4 can also serve as an overflow hole to accelerate the drainage of accumulated water. The lower weight-reducing hole 7 is close to the drainage channel but does not occupy the channel space. Moreover, the opening does not affect the longitudinal flow of rainwater in the drainage channel. On the contrary, it can assist in accelerating the drainage of rainwater through the airflow inside the hole.

[0073] The arrangement of weight-reducing holes can be optimized iteratively based on CAE (Computer Aided Engineering) analysis results. While meeting optimal requirements, the holes should be made as large as possible to reduce weight, promote drainage, and improve the rust prevention function of the hinge reinforcement plate body 2. The size of the weight-reducing holes can be maximized according to performance requirements, while still fulfilling the function of the wiring harness assembly through holes.

[0074] Optionally, the weight-reducing hole and the hinge reinforcement plate body 2 are integrally stamped, requiring no additional processes and without affecting production efficiency.

[0075] In some embodiments, see Figure 1 and Figure 2 The number of upper layer weight reduction holes 4 is multiple, and the multiple upper layer weight reduction holes 4 are spaced apart along the extension direction of the bonding part 3.

[0076] The upper weight-reducing holes 4 are arranged at intervals along the length of the mating part 3, and each upper weight-reducing hole 4 corresponds to one of the multiple planar segments. The multiple upper weight-reducing holes 4 arranged at intervals avoid local weakness caused by a single opening; and the multiple upper weight-reducing holes 4 are alternately arranged with the unopened area to form a support structure, making the hinge reinforcing plate body 2 more uniformly stressed, and the bending stiffness and fatigue strength are better than the design of a single large opening.

[0077] The hinge reinforcement plate body 2 forms a corresponding planar area above the planar section of the mating part 3, and the upper weight-reducing holes 4 are opened in this planar area. The sheet metal structure of the planar area is flat, without complex curved surfaces or transition rounded corners, which can avoid edge stress concentration caused by structural irregularities when opening holes, reducing the risk of cracking after opening holes; at the same time, the flat plane facilitates the positioning of stamping processing, and can accurately control the diameter, position and spacing of the weight-reducing holes.

[0078] In addition, openings in the planar area facilitate the uniform discharge of gas from the weight reduction holes, reduce dead zones in the exhaust process, and improve the uniformity of the electrophoretic coating.

[0079] In some embodiments, see Figure 1 and Figure 2 The lower weight reduction hole 7 is located on the side of the drainage part 5 away from the limiter mounting part 6.

[0080] The drainage section 5 is located in the middle of the hinge reinforcing plate body 2 in the horizontal direction. One side of it is a planar structure, and the other side is a protruding limiter mounting section 6. This planar structure has no interference from other structures, providing ample space for the stamping process of the lower weight reduction hole 7.

[0081] The lower weight-reducing hole 7 works in conjunction with the upper weight-reducing hole 4 to prevent uneven weight distribution caused by concentrated weight reduction in a single area. Furthermore, a mounting hole is provided on the limiter mounting part 6 located on the other side of the drainage part 5. The mounting hole and the lower weight-reducing hole 7 are distributed on both sides of the drainage part 5, making the overall weight distribution of the hinge reinforcement plate more balanced.

[0082] Based on the same inventive concept, this application also provides a car door that adopts the above-mentioned hinge reinforcement plate structure.

[0083] Compared with the prior art, the car door provided in this application has all the beneficial effects of the aforementioned hinge reinforcement plate structure. The guide surface of the hinge reinforcement plate in the car door guides the rainwater to flow in a specific direction and blocks the rainwater from entering the fitting part 3. At the same time, in conjunction with the drainage channel, it ensures that all rainwater inside the hinge reinforcement plate is discharged, avoiding the problem of water accumulation and rusting in the sheet metal inside the car door. Furthermore, the combination of the drainage channel and the weight reduction hole improves the venting effect during electrophoresis and improves the uniformity of the electrophoretic coating on the car door. By opening the weight reduction hole on the hinge reinforcement plate, a lightweight design is achieved, while reducing the overall weight of the car door.

[0084] Based on the same inventive concept, this application also provides a vehicle that adopts the above-mentioned hinge reinforcement plate structure.

[0085] The vehicle provided in this application, compared with the prior art, has all the beneficial effects of the aforementioned hinge reinforcement plate structure, solving the problems of water accumulation and rust on vehicle doors, heavy weight, and complex assembly. By enhancing the drainage effect and rust prevention performance of the hinge reinforcement plate, the reliability and durability of the vehicle are improved, and the maintenance cost of the vehicle is reduced.

[0086] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A hinge reinforcement plate structure, characterized in that, include: The hinge reinforcement plate body (2) is located on one side of the inner panel (1) of the door; the lower part of the hinge reinforcement plate body (2) has a limiter mounting part (6); The fitting part (3) is located in the middle of the hinge reinforcing plate body (2), and the fitting part (3) is located above the limiter mounting part (6); the fitting part (3) is fitted and glued to the inner panel of the door, and the upper end surface of the fitting part (3) forms an inclined guide surface; A drainage portion (5) is provided below the fitting portion (3). The drainage portion (5) is located on one side of the limiter mounting portion (6). The drainage portion (5) extends longitudinally to the lower end of the hinge reinforcing plate body (2). The drainage portion (5) and the inner door panel (1) are spaced apart to form a drainage channel.

2. The hinge reinforcement plate structure as described in claim 1, characterized in that, The bonding part (3) is provided with welding points, which are used to fix the bonding part (3) and the inner panel of the door (1) in place; The solder joints include: The end solder joints (8) are located at both ends of the bonding portion (3) along its length. The central weld point (9) is located in the middle of the length direction of the bonding part (3).

3. The hinge reinforcement plate structure as described in claim 2, characterized in that, The bonding portion (3) includes: Multiple planar segments are fitted onto multiple mating surfaces of the inner door panel (1); adjacent planar segments are connected by an arc-shaped transition segment; The central weld point (9) is located on one or more of the planar segments.

4. The hinge reinforcement plate structure as described in claim 1, characterized in that, The outer wall of the bonding part (3) is provided with a recessed mark, which is used to indicate the adhesive application direction and position of the bonding part (3).

5. The hinge reinforcement plate structure as described in claim 1, characterized in that, The limiter mounting part (6) includes: A fixing part is provided at a distance from the inner panel of the door (1) to form an installation space; Water guiding part (10) connects the fixing part and the drainage part (5). The water guiding part (10) protrudes to the side away from the inner panel of the door (1). The water guiding part (10) and the inner panel of the door (1) form a water guiding channel. The water guiding channel connects the installation space and the drainage channel.

6. The hinge reinforcement plate structure as described in claim 1, characterized in that, The hinge reinforcement plate body (2) is provided with an upper weight reduction hole (4) and a lower weight reduction hole (7). The upper weight reduction hole (4) is located above the fitting part (3); the lower weight reduction hole (7) is located below the fitting part (3).

7. The hinge reinforcement plate structure as described in claim 6, characterized in that, The number of upper layer weight reduction holes (4) is multiple, and the multiple upper layer weight reduction holes (4) are spaced apart along the extension direction of the bonding part (3).

8. The hinge reinforcement plate structure as described in claim 6, characterized in that, The lower weight reduction hole (7) is located on the side of the drainage part (5) away from the limiter mounting part (6).

9. A car door, characterized in that, The hinge reinforcement plate structure as described in any one of claims 1-8 is adopted.

10. A vehicle, characterized in that, The hinge reinforcement plate structure as described in any one of claims 1-8 is adopted.

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