Back door structure assembly and vehicle

Abstract

The utility model provides a back door structure assembly and a vehicle, and belongs to the technical field of vehicles, the back door structure assembly comprises a back door outer plate and a back door inner plate which are sequentially arranged from outside to inside of the vehicle; a windscreen wiper reinforcing plate is arranged between the back door outer plate and the back door inner plate, and the windscreen wiper reinforcing plate is located in a windscreen wiper installation area used for installing a back windscreen wiper and located on the lower portion of a back car window. A shock absorber is arranged on the inner side of the back door inner plate, and the shock absorber is located in the windscreen wiper installation area and located on one side of the rear windscreen wiper. According to the back door structure assembly provided by the utility model, the stability of the rear windscreen wiper during running on a bumpy road surface is improved, collision sound production caused by vibration is avoided, and the probability that the rear windscreen wiper produces abnormal sound when a vehicle runs on the bumpy road surface is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle technical field, more specifically, relate to a back door structure assembly and vehicle. BACKGROUND

[0002] In modern automobile design, the rear wiper is an important part to ensure the rear windshield glass clean and the rear field of view clear, and its arrangement position and structure design directly affect the use experience of the vehicle in various driving conditions.

[0003] At present, many vehicles adopt the structure form that the rear wiper is arranged at the upper lifting back door of the lower part of the windshield. This arrangement has its own advantages, for example, it can reasonably layout the rear wiper device in the limited tail space, facilitate the integration with the overall modeling of the back door, and can better cover the area of the rear windshield glass that needs to be cleaned to a certain extent.

[0004] However, in actual use, especially when the vehicle is running on a bumpy road, this arrangement exposes a series of problems. Since the back door itself will vibrate up and down and left and right with the bumps of the road during vehicle driving, the rear wiper installed at the upper lifting back door of the lower part of the windshield will also vibrate. On the one hand, the vibration will cause the wiper to be unable to stably wipe the rear windshield glass, resulting in incomplete wiping, which seriously affects the driver's observation of the rear situation through the rear windshield, and reduces the safety of driving; on the other hand, the vibration of the wiper is easy to cause abnormal noise, which not only brings an uncomfortable auditory experience to the driver and passenger, affects the quiet driving environment in the vehicle, but also distracts the driver's attention, further threatening the safety of driving. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a back door structure assembly, which aims to solve the problems of vibration and abnormal noise of the rear wiper arranged at the upper lifting back door of the lower part of the windshield when driving on a bumpy road.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a back door structure assembly, which comprises a back door outer plate and a back door inner plate arranged in sequence from the outside of the vehicle to the inside of the vehicle.

[0007] A wiper reinforcement plate is arranged between the back door outer plate and the back door inner plate, and the wiper reinforcement plate is located in the wiper mounting area for mounting the rear wiper at the lower part of the rear window.

[0008] A shock absorber is arranged on the inner side of the back door inner plate, and the shock absorber is located at one side of the rear wiper in the wiper mounting area.

[0009] In a possible implementation, the upper end of the wiper reinforcing plate is provided with a conformal connecting part conforming to the lower edge of the rear window, which can ensure the stability of the relative position between the wiper reinforcing plate and the rear window, and the wiper reinforcing plate will not be easily displaced or loosened due to the impact of external force, and can uniformly disperse stress to the entire connecting area, avoiding stress concentration in a certain point and causing damage to the connecting part.

[0010] In a possible implementation, the conformal connecting parts are respectively welded and fixed with the outer plate and the inner plate of the back door, which can ensure the stability and reliability of the connection between the wiper reinforcing plate and the outer plate and the inner plate of the back door, and the wiper reinforcing plate will not be loosened or separated.

[0011] In a possible implementation, the connecting branch plates are adhesively fixed with the outer plate of the back door, which reduces the risk of damage or deformation of the connecting part caused by excessive local stress, and improves the stability and reliability of the entire rear wiper mounting structure.

[0012] In a possible implementation, the middle part of the wiper reinforcing plate protrudes towards the inner plate of the back door, and a damping cavity is formed between the wiper reinforcing plate and the outer plate of the back door, which can effectively buffer and absorb the vibration energy and reduce the transmission of vibration to the wiper reinforcing plate and the rear wiper installed in the wiper mounting area.

[0013] In a possible implementation, the shock absorber comprises:

[0014] The mounting bracket is arranged on the inner side of the inner plate of the back door and located at one side of the rear wiper;

[0015] The counterweight is suspendedly installed on the mounting bracket through the elastic connecting piece;

[0016] The damping effect is optimized, and a relatively stable working environment is provided for the rear wiper.

[0017] In a possible implementation, the mounting bracket comprises:

[0018] The mounting plate is fixed on the inner side of the inner plate of the back door and located at one side of the rear wiper;

[0019] The connecting plate is longitudinally arranged at the upper end of the mounting plate, and the two ends of the connecting plate form bending plates bent to the same side, and the elastic connecting piece is arranged on the inner side surface of the bending plate;

[0020] The force concentration causes local damage to the mounting plate or the inner plate of the back door.

[0021] In a possible implementation, the elastic connecting piece comprises:

[0022] A first connecting end, which is connected to the inner side of the bent plate;

[0023] A second connecting end, which is connected to one end of the counterweight block;

[0024] A middle connecting section, which is connected between the first connecting end and the second connecting end, and has a hollow gap;

[0025] The stress is dispersed, the rubber is prevented from being damaged due to excessive stress in a local area, and the durability and reliability of the elastic connecting piece are improved.

[0026] In a possible implementation, a buffer pad layer is arranged around the counterweight block, which can play a role of isolation and buffering, and prevents the counterweight block from directly colliding with other components.

[0027] The rear door structure assembly has the advantages that, compared with the prior art, the wiper reinforcement plate between the rear door outer plate and the rear door inner plate is located in the rear window lower wiper installation area, the wiper reinforcement plate can provide an additional support structure for the rear wiper, when the vehicle runs on a bumpy road, the rear door may shake, and the wiper reinforcement plate can effectively disperse the vibration energy from the rear door, so that vibration is directly transmitted to the rear wiper, thereby reducing the possibility of shaking of the rear wiper. The shock absorber can further absorb the vibration transmitted to the wiper installation area, the shock absorber can be specially damped for the wiper installation area, cooperates with the wiper reinforcement plate, and greatly improves the stability of the rear wiper when the vehicle runs on a bumpy road. The shock absorber absorbs energy through elastic deformation, avoids collision sound caused by vibration, and effectively reduces the probability of abnormal sound of the rear wiper when the vehicle runs on a bumpy road.

[0028] The utility model also provides a vehicle, including rear door structure assembly.

[0029] The vehicle has the advantages that, compared with the prior art, the rear door structure assembly is used, so that stable wiping action can be maintained when the vehicle runs on a bumpy road, shaking and abnormal sound are reduced, vibration and noise generated by the rear door during vehicle running are effectively transmitted to the vehicle, and the overall quality and user satisfaction of the vehicle are improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0031] Figure 1 The structure schematic view of the rear back door structure assembly provided by the present application is shown in the figure.

[0032] Figure 2 The structure schematic view of the rear back door structure assembly provided by the present application is shown in the figure. Figure 1 The partial sectional view along A-A in the figure.

[0033] Figure 3 The structure schematic view of the wiper reinforcing plate provided by the present application is shown in the figure.

[0034] Figure 4 The structure schematic view of the shock absorber provided by the present application is shown in the figure.

[0035] In the figure: 100, rear back door outer plate; 200, rear back door inner plate; 300, wiper reinforcing plate; 310, conformal connecting part; 320, connecting branch plate; 330, damping cavity; 400, rear wiper; 500, shock absorber; 511, mounting plate; 512, connecting plate; 513, bending plate; 520, counterweight; 521, buffer pad layer; 531, first connecting end; 532, second connecting end; 533, middle connecting section; 5331, hollow space gap; 600, rear window. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0037] Unless otherwise explicitly defined, the terms such as "first", "second" or "third" are used only to distinguish different objects, and are not used to describe a specific order.

[0038] Unless otherwise clearly defined, the orientation words such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise", "high", "low", etc. indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the utility model.

[0039] Please refer to Figure 1 and Figure 2 , now a rear door structure assembly provided by the utility model will be described. A rear door structure assembly, comprising a rear door outer plate 100 and a rear door inner plate 200 arranged in turn from the outside of the vehicle to the inside of the vehicle; a rain scraper reinforcing plate 300 is arranged between the rear door outer plate 100 and the rear door inner plate 200, the rain scraper reinforcing plate 300 is located in the lower part of the rear window 600 for installing the rear rain scraper 400; a shock absorber 500 is arranged on the inner side of the rear door inner plate 200, and the shock absorber 500 is located in the rain scraper installation area and on one side of the rear rain scraper 400.

[0040] Compared with the prior art, the rain scraper reinforcing plate 300 between the rear door outer plate 100 and the inner plate of the rear door structure assembly provided by the utility model is located in the rain scraper installation area of the lower part of the rear window 600, and the rain scraper reinforcing plate 300 can provide additional support structure for the rear rain scraper 400. When the vehicle runs on a bumpy road, the rear door may shake, and the rain scraper reinforcing plate 300 can effectively disperse the vibration energy from the rear door, reduce the direct transmission of vibration to the rear rain scraper 400, and thus reduce the possibility of shaking of the rear rain scraper 400. The shock absorber 500 can further absorb the vibration transmitted to the rain scraper installation area, and the shock absorber 500 can be specially damped for the rain scraper installation area, and cooperates with the rain scraper reinforcing plate 300, greatly improving the stability of the rear rain scraper 400 when running on a bumpy road. The shock absorber 500 absorbs energy through its elastic deformation, avoids collision sound caused by vibration, and effectively reduces the probability of abnormal sound of the rear rain scraper 400 when the vehicle runs on a bumpy road.

[0041] The wiper installation area is the area covered by the wiper reinforcement plate 300, where the rear wiper 400 and the shock absorber 500 are installed. The connecting bolts of the rear wiper 400 and the shock absorber 500 pass through the rear door inner panel 200 and the wiper reinforcement plate 300 in sequence for connection. The presence of the wiper reinforcement plate 300 improves the structural strength of the rear wiper 400 installation area. During vehicle driving, the rear door will be subjected to various complex forces, such as wind resistance, impact force of bumpy road, etc. The wiper reinforcement plate 300 can effectively disperse these forces, reducing the direct force on the rear wiper 400 and the shock absorber 500, thereby improving the load-bearing capacity and durability of the entire rear wiper 400 installation structure. At the same time, the synergistic effect of the rear door inner panel 200 and the wiper reinforcement plate 300 further enhances the local structural strength of the rear door, helping to maintain the overall shape and dimensional accuracy of the rear door. From the perspective of vibration and noise reduction, the wiper reinforcement plate 300 not only disperses the force from the rear door, but also optimizes the vibration transmission path to some extent. When the vehicle is driving on a bumpy road or encounters other vibration sources, the vibration generated by the rear door will be transmitted to the rear wiper 400 through a specific path. Due to the presence of the wiper reinforcement plate 300, this vibration transmission is no longer direct and simple, but needs to pass through the wiper reinforcement plate 300 as a buffer zone. The structure and material properties of the wiper reinforcement plate 300 enable it to play a certain damping role in the vibration transmission process, consuming part of the vibration energy, so that the final vibration amplitude transmitted to the rear wiper 400 is reduced. Similarly, for the shock absorber 500, the synergistic effect of the wiper reinforcement plate 300 also helps it to better play the role of vibration reduction, avoiding performance degradation due to excessive impact. This series of vibration reduction effects work together not only to reduce the possibility of shaking phenomenon of the rear wiper 400 during operation, but also to greatly reduce the noise generated by vibration, creating a more quiet and comfortable driving environment inside the vehicle. In terms of durability and reliability, the cooperation of the wiper reinforcement plate 300 with other components further improves the fatigue resistance of the entire rear wiper 400 installation structure. During the long-term driving of the vehicle, the rear wiper 400 and the shock absorber 500 will constantly bear various stresses. Without the support of the wiper reinforcement plate 300, these components may develop fatigue cracks or performance degradation due to long-term concentrated stress. The presence of the wiper reinforcement plate 300 evenly distributes the stress, allowing the rear wiper 400 and the shock absorber 500 to work in a relatively stable stress environment. This optimized stress distribution helps to delay the fatigue damage process of the components, prolong their service life, and reduce the maintenance cost and replacement frequency of the vehicle during use. At the same time, the synergistic effect of the rear door inner panel 200 and the wiper reinforcement plate 300 also ensures the local structural integrity of the rear door, avoiding the impact of excessive wear or deformation in local areas on the normal installation and operation of the rear wiper 400, thereby improving the reliability of the entire rear wiper 400 system under long-term complex working conditions.

[0042] In addition, the wiper reinforcement plate 300 is also provided with positioning holes and weight reduction holes. The positioning holes provide accurate positioning reference for the installation of the rear wiper 400 and the shock absorber 500. During the assembly process, the installer can quickly and accurately install the rear wiper 400 and the shock absorber 500 to the predetermined position through the positioning holes, reducing the adjustment time and errors during the installation process. This precise positioning method not only improves the installation efficiency, but also ensures the cooperation accuracy of the rear wiper 400 and the shock absorber 500 with other related parts, avoiding the problems of vibration and abnormal sound caused by installation deviation, and improving the overall performance and reliability of the rear wiper system. By reasonably arranging the weight reduction holes, the weight of the wiper reinforcement plate 300 can be significantly reduced without affecting the overall strength and stiffness of the wiper reinforcement plate 300. This helps to reduce the overall weight of the vehicle, improve fuel economy and vehicle handling performance.

[0043] Please refer to Figure 3The upper end of the wiper reinforcement plate 300 is provided with a conformal connecting part 310 conforming to the lower edge of the rear window 600, so that the wiper reinforcement plate 300 and the rear window 600 can be tightly fitted. During vehicle driving, whether it is affected by wind resistance, vibration or other external forces, the tight connection can ensure the stable relative position between the wiper reinforcement plate 300 and the rear window 600, and it will not easily displace or loosen due to the impact of external force. When the vehicle is driving at high speed, the airflow will generate a relatively large pressure on the vehicle body, and the conformal connecting part 310 can effectively resist this pressure and maintain the stable connection of the wiper reinforcement plate 300 and the lower edge of the rear window 600, providing a reliable basis for the installation of the rear wiper 400. The conformal connecting part 310 can also evenly distribute stress to the entire connecting area, avoiding stress concentration at a certain point and causing damage to the connecting part. In this way, the service life of the wiper reinforcement plate 300 and the rear window 600 can be prolonged, and the risk of failure caused by the failure of the connecting part can be reduced. The lower end of the wiper reinforcement plate 300 is provided with a plurality of connecting branch plates 320 arranged in sequence and at intervals, which can provide multi-point support connection for the wiper reinforcement plate 300. During vehicle driving, the back door will be subjected to various complex forces, such as impact force of bumpy road, inertial force when the vehicle accelerates or decelerates, etc. The plurality of connecting branch plates 320 can evenly distribute these forces to the back door inner panel 200, avoiding deformation or damage of the wiper reinforcement plate 300 due to excessive local stress, thereby enhancing the strength and stability of the entire wiper installation structure. The reasonable arrangement and distribution of the connecting branch plates 320 can effectively improve the carrying capacity of the wiper reinforcement plate 300. The rear wiper 400 needs to bear a certain pressure and impact force when working, especially when removing a large area of water stains or dirt. The plurality of connecting branch plates 320 can provide sufficient support force for the wiper reinforcement plate 300, ensuring that it will not sway or sag during work due to insufficient carrying capacity, and ensuring the normal work and wiping effect of the rear wiper 400.

[0044] Specifically, the conformal connecting part 310 is fixedly connected with the back door outer plate 100 and the back door inner plate 200 by spot welding, and a plurality of uniformly distributed welding points can be formed between the conformal connecting part 310 and the two plates. These welding points effectively connect the three together to form an integral structure. During vehicle driving, whether it is the impact force encountered on bumpy roads or the air pressure during high-speed driving, the connection between the wiper reinforcement plate 300 and the back door outer plate 100 and the inner plate can be ensured to be stable and reliable, and will not be loose or separated, thereby providing a stable installation basis for the rear wiper 400. During the long-term use of the vehicle, the back door may be deformed due to various external forces. The spot welding method makes the conformal connecting part 310 and the back door outer plate 100 and the inner plate have high bonding strength, which can resist these external forces and reduce the risk of separation of the connecting part due to deformation. In addition, the plurality of welding points formed by spot welding can uniformly disperse the stress acting on the conformal connecting part 310. When the back door is subjected to force from different directions, the stress will be transmitted to the back door outer plate 100 and the inner plate through the welding points, avoiding stress concentration in a certain place and causing fatigue damage of the connecting part. In this way, the service life of the conformal connecting part 310 and the related components of the back door can be prolonged, the repair and replacement cost caused by damage of the connecting part can be reduced, and the durability of the vehicle as a whole is improved.

[0045] Specifically, the connecting branch plate 320 and the back door outer plate 100 are fixedly connected by structural adhesive. After curing, the structural adhesive can form a continuous adhesive layer, and when the back door is subjected to various external forces (such as bumps, vibrations, wind loads, etc.) during vehicle driving, the force borne by the connecting branch plate 320 can be uniformly transmitted to the back door outer plate 100 through the structural adhesive. This uniform stress distribution method avoids the occurrence of stress concentration, reduces the risk of damage or deformation of the connecting part caused by excessive local stress compared to traditional point connection (such as bolt connection), thereby improving the stability and reliability of the entire rear wiper mounting structure. In addition, the structural adhesive not only bonds the connecting branch plate 320 and the back door outer plate 100, but also fills the small gap between them, playing a sealing role. This helps to prevent external substances such as rainwater and dust from entering the back door interior through the connecting part, thereby protecting the electrical system, interior components, etc. inside the vehicle from damage. Good sealing can also reduce the risk of wind noise and water leakage during vehicle driving, improving the driving comfort and overall quality of the vehicle.

[0046] The middle part of the wiper reinforcement plate 300 protrudes towards the back door inner panel 200, forming a shock absorption cavity 330 between the wiper reinforcement plate 300 and the back door outer panel 100. The shock absorption cavity 330 creates a shock absorption area inside the back door. When the vehicle is driving on a bumpy road, the back door will be impacted by the road surface and vibrate. The shock absorption cavity 330 can effectively buffer and absorb these vibration energies, reducing the transmission of vibrations to the wiper reinforcement plate 300 and the rear wiper 400 installed in the wiper installation area. In this way, the amplitude of the rear wiper 400 caused by vibration is greatly reduced, and the stability of the rear wiper 400 is improved. The vibrations that are directly transmitted to the wiper reinforcement plate 300 and the rear wiper 400 are dispersed and reflected when encountering the shock absorption cavity 330, causing the vibration energy to gradually attenuate during transmission. This effective control of vibration not only reduces the vibration of the rear wiper 400, but also prevents component fatigue damage caused by long-term vibration, prolonging the service life of the rear wiper 400 and related components.

[0047] Please refer to Figure 4 The shock absorber 500 includes a mounting bracket and a counterweight 520. The mounting bracket is arranged on the inner side of the back door inner panel 200 and located on one side of the rear wiper 400. The two ends of the counterweight 520 are suspended and installed on the mounting bracket through elastic connecting members. When the vehicle is driving on a bumpy road, the vibration of the back door is first transmitted to the mounting bracket. Since the counterweight 520 is suspended through the elastic connecting members, when the vibration is transmitted to the counterweight 520, the counterweight 520 will produce relative motion under the action of the elastic connecting members, converting the kinetic energy of the vibration into elastic potential energy. Then, the elastic potential energy is converted into heat energy through the restoring force of the elastic connecting members and dissipated, thereby achieving effective buffering and absorption of vibration. This combination of increased mass and elastic elements further optimizes the damping effect, providing a relatively stable working environment for the rear wiper 400.

[0048] The mounting bracket is made of lightweight material. As part of the shock absorber 500, the use of lightweight material can effectively reduce the weight of the back door area. When the vehicle is driving, a lighter vehicle body weight means that the engine needs to output relatively less power, thereby reducing fuel consumption. In addition, lightweight materials usually have good elastic modulus and damping characteristics. After the mounting bracket is made of lightweight material, its own vibration characteristics are optimized, and it can better work with other components of the shock absorber 500. During vehicle driving, when the back door is impacted by vibration, the lightweight mounting bracket can more effectively transmit vibration energy to damping components such as elastic connecting members and counterweights 520, reducing the accumulation and transmission loss of vibrations in the mounting bracket itself, thereby improving the damping efficiency of the entire shock absorption system.

[0049] Please refer to Figure 4, the mounting frame includes a mounting plate 511 and a connecting plate 512. The mounting plate 511 is fixed to the inner side of the rear door inner panel 200 and located at one side of the rear wiper 400. The mounting plate 511 can be designed according to the shape and size of the rear door inner panel 200 and is tightly combined with the rear door inner panel 200 through bolts, welding or other reliable connection methods, ensuring that the shock absorber 500 will not displace or loosen due to vibration during vehicle driving, and providing stable foundation support for the entire shock absorption system. The connecting plate 512 is longitudinally arranged at the upper end of the mounting plate 511, and the two ends of the connecting plate 512 form a bending plate 513 bent to the same side, and the elastic connecting piece is arranged on the inner side of the bending plate 513. The connecting plate 512 is a key component connecting the mounting plate 511 and the counterweight 520, and its longitudinal arrangement can better transmit and disperse the force from the counterweight 520, avoiding the concentrated force from damaging the mounting plate 511 or the rear door inner panel 200. At the same time, the longitudinal arrangement is also conducive to improving the damping effect of the shock absorber 500 in the vertical direction and better coping with the up-and-down bumping during vehicle driving. The force transmitted by the counterweight 520 through the elastic connecting piece can be effectively dispersed and buffered under the guidance of the bending plate 513. The bending plate 513 can better absorb and consume vibration energy, thereby improving the damping effect of the shock absorber 500 and reducing the influence of vibration on the rear wiper 400.

[0050] In addition, a bending plate is also arranged in the middle of the connecting plate 512, which is located above the counterweight 520. The bending plate can form a mutual support structure with the counterweight 520. When vibration occurs during vehicle driving, the bending plate can effectively limit the movement amplitude of the counterweight 520 and prevent it from displacing or loosening due to excessive shaking. At the same time, the counterweight 520 also exerts a certain reaction force on the bending plate, enhancing the overall structural strength of the connecting plate 512 and improving the stability of the shock absorber 500 under complex working conditions.

[0051] Please refer to Figure 4The elastic connecting piece comprises a first connecting end 531, a second connecting end 532 and a middle connecting section 533. The first connecting end 531 is connected to the inner side of the bending plate 513 by welding; the second connecting end 532 is connected to one end of the counterweight 520 by clamping; and the middle connecting section 533 is connected between the first connecting end 531 and the second connecting end 532. The middle connecting section 533 is made of rubber material and has good elasticity and damping characteristics, so that it can be elastically deformed when subjected to vibration, thereby effectively buffering and absorbing the vibration energy from the back door. The middle connecting section 533 has a hollow gap 5331. The presence of the hollow gap 5331 allows the rubber material to have a certain deformation space in the middle region, so that the rubber can deform more fully when subjected to vibration, thereby increasing the stroke and buffering capacity of the elastic connection. At the same time, the hollow gap 5331 can also play a role in dispersing stress concentration, avoiding damage to the rubber in the local area due to excessive stress, and improving the durability and reliability of the elastic connecting piece.

[0052] Preferably, a buffer pad layer 521 made of rubber material is arranged around the counterweight 520. The buffer pad layer 521 made of rubber material has good elasticity and damping characteristics, and the vibration energy of the counterweight 520 can be effectively absorbed and dispersed through the buffer pad layer 521. This energy absorption and dispersion can significantly reduce the vibration amplitude of the counterweight 520, improve the damping effect of the shock absorber 500, and further ensure that the rear wiper 400 can still work stably under complex working conditions such as bumpy road surfaces. In addition, the collision between the counterweight 520 and the surrounding parts during vibration is also one of the main reasons for noise. The buffer pad layer 521 made of rubber material can play a role in isolation and buffering, preventing the counterweight 520 from colliding directly with other parts. When the counterweight 520 comes into contact with the buffer pad layer 521 and vibrates, the elasticity and damping characteristics of the rubber can absorb and consume the collision energy, converting it into heat energy or other forms of energy, thereby reducing the spread of the sound generated by the collision. This noise reduction effect can create a more quiet and comfortable environment inside the vehicle, improving the comfort experience of the driver and passengers.

[0053] Based on the same inventive concept, the utility model also provides a vehicle which uses the rear door structure assembly described above. Therefore, when driving on bumpy roads, the vehicle can maintain stable wiping action, reduce shaking and abnormal noise, effectively reduce the vibration and noise generated by the rear door during vehicle driving and transmitted to the vehicle interior, and improve the overall quality and user satisfaction of the vehicle.

[0054] The above description is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A back door structure assembly, characterized by, The back door structure assembly comprises a back door outer plate (100) and a back door inner plate (200) arranged in sequence from outside to inside of the vehicle. A wiper reinforcement plate (300) is arranged between the back door outer plate (100) and the back door inner plate (200), and the wiper reinforcement plate (300) is located at a lower part of a rear window (600) and is used for mounting a rear wiper (400). A shock absorber (500) is arranged on an inner side of the back door inner plate (200), and the shock absorber (500) is located at the wiper mounting area and is located at one side of the rear wiper (400).

2. The back door structural assembly of claim 1, wherein, An upper end of the wiper reinforcement plate (300) is provided with a contour connecting part (310) which is contour-shaped with a lower edge of the rear window (600), and a lower end of the wiper reinforcement plate (300) is provided with a plurality of connecting branch plates (320) which are arranged in sequence and are spaced.

3. A back door structure assembly according to claim 2, wherein The contour connecting part (310) is respectively welded and fixed with the back door outer plate (100) and the back door inner plate (200).

4. The back door structural assembly of claim 2, wherein, The connecting branch plate (320) is adhesively fixed with the back door outer plate (100).

5. The back door structural assembly of claim 1, wherein, A middle part of the wiper reinforcement plate (300) is protruded towards the back door inner plate (200), and a shock absorption cavity (330) is formed between the wiper reinforcement plate (300) and the back door outer plate (100).

6. A back door structure assembly according to any one of claims 1-5, characterized in that The shock absorber (500) comprises: A mounting frame is arranged on an inner side of the back door inner plate (200) and is located at one side of the rear wiper (400); A counterweight (520) is suspendedly mounted on the mounting frame through an elastic connecting piece.

7. A back door structural assembly according to claim 6, wherein The mounting frame comprises: A mounting plate (511) is fixed on an inner side of the back door inner plate (200) and is located at one side of the rear wiper (400); A connecting plate (512) is longitudinally arranged at an upper end of the mounting plate (511), both ends of the connecting plate (512) are formed into bending plates (513) which are bent towards the same side, and the elastic connecting piece is arranged on an inner side surface of the bending plate (513).

8. A back door structural assembly according to claim 7, wherein The elastic connecting piece comprises: A first connecting end (531) is connected with the inner side surface of the bending plate (513); A second connecting end (532) is connected with one end of the counterweight (520); A middle connecting section (533) is connected between the first connecting end (531) and the second connecting end (532), and the middle connecting section (533) is provided with a hollow space gap (5331).

9. The back door structural assembly of claim 6, wherein, A buffer pad layer (521) is arranged around the counterweight (520).

10. A vehicle characterized by comprising: The back door structure assembly comprises the back door structure assembly according to any one of claims 1-9.

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